Thermoforming machine and one-mold three-action in-mold labeling conveying and packing production line

Abstract

The present invention relates to a thermoforming machine and a one-mold three-action in-mold labeling conveying and packing production line, wherein the cup making machine is provided with two lower molds, and the two lower molds work alternately by translation to the left and right, which subverts the movement mode of the lower mold of the traditional cup making machine that can only be lifted up and down but cannot be translated to the left and right. In addition, since the lower mold of the traditional cup making machine cannot be translated to the left and right, the equipment used for in-mold labeling or the stacking transmission equipment can only be arranged in front of the cup making machine, resulting in the traditional technology of in-mold labeling requiring eleven actions to complete one-mold in-mold labeling production. However, because the two lower molds of the present invention can be lifted up and down and translated to the left and right alternately, when one of the lower molds has received and placed the label and is located at the thermoforming station below the upper mold to produce the product, the other lower mold is located at the outer side of the connecting support frame to receive the label. In this structure, each lower mold can work normally when it reaches the thermoforming station without waiting for the multiple actions of the in-mold labeling manipulator to enter the labeling like the traditional process, which shortens the production time of each mold and improves work efficiency. In addition, the mold manufacturing cost is low and the manufacturing is fast, and the product update and upgrade cost is low, which is conducive to rapid product renewal and market capture.

Description

Technical Field

[0001] The invention relates to equipment for preparing plastic containers for catering, in particular to a thermoforming machine for preparing disposable plastic cups, bowls, plates and other containers and covers for catering using plastic sheets and a one-mold-three-action in-mold labeling, conveying and packing production line. Background Art

[0002] Disposable plastic tableware for daily use, such as disposable cups, bowls, plates, lids, boxes and other products, the existing production methods for such products mainly include compressed air thermoforming, but its operation is slow and inefficient, and there is still a technical defect that one machine cannot complete the multi-functional mold labeling and the multi-specification shapes of white cup production to be transferred to the box. Vacuum molding and injection molding, and these products require label patterns, which need to be printed with curved surface graphics or affixed with self-adhesive labels or heat shrink decoration, such as in-mold labeling and plastic production. Although injection molding has no corners in raw materials and can save electricity for sheets, there are problems such as expensive molds, long mold processing and debugging cycles, which easily lead to the loss of market opportunities, and the number and speed of each mold cannot be compared with the sheet compressed air thermoforming cup making machine. Therefore, the applicant of the present invention has developed a multi-functional thermoforming cavity labeling production line to achieve affixing rich graphic labels while producing and preparing products, greatly improving the aesthetics of the products and increasing the added value of machinery and cup making products. However, the invention of the cup-making and stacking conveying robot disclosed by the applicant requires eleven actions per mold. When in-mold labeling is performed, the production line needs to add a multifunctional in-mold labeling robot. The multifunctional in-mold labeling robot must first wait for the multifunctional material picking and conveying robot to descend to make room, and then the multifunctional in-mold labeling robot must perform four actions: translation entry, descending to place labels, ascending and translation exit. It takes eleven actions to connect the upper and lower pressing and thermoforming cup-making machines to complete one mold (such as the in-mold labeling container production line connected to the pressure-air thermoforming machine with publication number CN106273375B). Even the multifunctional in-mold labeling robot connected to the more advanced flip mold requires nine actions to complete one mold, and there is a problem of multiple actions and relatively slow efficiency. With the improvement of social consumption level, consumers' demand for product appearance and packaging is gradually increasing, which makes the market share of existing pressure-air thermoforming white cup containers decline sharply due to their low grade. In order to save the problem of declining market share of cup-making products, developed countries have already launched pressure-air thermoforming in-mold labeling production lines, but there are still problems such as high price and inability to use multiple functions, which leads to the failure to open up the market. In order to label products to meet consumers' requirements for high-end products and regain market share, the existing equipment has high investment cost, special equipment cannot be used for multiple functions, the added value of the machine is low, and there is a technical unloading market that cannot be opened. In view of the decline in the white cup market, it is urgent to develop a low-investment cost and high automation, and to ensure that the in-mold labeling function and the conveying and packing production line of multiple specifications and shapes are added on the basis of the original equipment to achieve multiple uses of one machine, greatly improve the added value of equipment and products, adapt to the needs of the domestic and foreign mass market, and save the declining market share. Summary of the invention

[0003] The object of the present invention is to avoid the deficiencies in the prior art and to provide a plastic container thermoforming machine which can be improved based on a traditional cup making machine, has low modification cost, high production efficiency and can realize white cup preparation and in-mold labeling.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] Provided is a plastic container thermoforming machine, which includes an upper mold mechanism, a lower mold mechanism and an electric furnace, wherein the upper mold mechanism is provided with an upper mold, and the lower mold mechanism is provided with two lower molds, a lower lifting mold platform, a lower lifting drive device and a translation drive device, wherein the two lower molds are slidably mounted on the lower lifting mold platform, and the lower lifting mold platform can be driven to rise or fall by the lower lifting drive device so that the lower molds are molded together with the upper mold or are opened and separated from the upper mold;

[0006] Each lower die is provided with a corresponding balancing weight box, which can slide on the placement seat and the lower lifting die table;

[0007] A latch is provided on one side of the bottom of the lower die close to the balancing weight box, a connecting plate is connected to one side of the balancing weight box close to the lower die, a latch hole is provided at the front end of the connecting plate, and the latch of the lower die can be inserted into the latch hole;

[0008] When the lower lifting die table is lowered into place, the pins of the two lower dies are inserted into the pin holes of the connecting plates of the corresponding balancing weight boxes to form a balancing linkage structure that can pull each other to alternate and interchange workstations. The lower die that has completed the forming pushes the corresponding balancing weight box out of the lower lifting die table and makes the balancing weight box slide to the placement seat for standby, while the balancing weight box on the other side is pulled from the placement seat to the upper and lower lifting die table by the bottom pin of the corresponding lower die with the plug hole as the fulcrum. The lower die at the receiving and unloading standby and conveying workstation is translated to the forming standby workstation, and the lower die at the forming standby workstation is immediately replaced to the receiving and unloading standby and conveying workstation. Among them, the workstations recorded in all the above embodiments are only the positions where specific equipment is located when implementing a certain function. The positions of the workstations can be determined according to the actual plant space, layout and volume of the equipment. The actual positions of the workstations do not constitute a limitation on the scope of protection of this patent, and the method for technicians in this field to arrange the workstations of the equipment according to actual conditions is clear and definite.

[0009] Preferably, a translational sliding base is provided at the bottom of each lower mold, and the two translational sliding bases are connected through a traction bearing seat. A slider is fixed at the bottom of the translational sliding base, and the slider is slidably arranged on a rail, and the rail is fixed to the lower lifting mold platform. A clutch traction pin is provided at the bottom of the tail end of the translational sliding base.

[0010] Preferably, when the lower lifting mold platform rises into place, the upper mold and the lower mold are combined to form the product, and the other lower mold simultaneously completes the label removal. During the descending process of the lower lifting mold platform, the demolding cylinder of the demolding unit rises to separate the product from the mold cavity and hang it at the corner, and then the demolding unit is reset; when the lower lifting mold platform descends into place, the traction clutch pin under the translational sliding base of the lower mold outside the forming station is inserted into the pin hole of the balancing counterweight box to form a translational linkage structure in which the two lower molds are each pulled by the balancing counterweight box on the outside.

[0011] Preferably, the upper mold mechanism is installed on a connecting support frame, an upper support platform is fixed on the upper end of the connecting support frame, the upper tail of the upper lifting gantry column is fixed to the upper support platform, and the lower end is fixed to the cross beams on both sides of the connecting support frame located on the outside of the sheet conveying chain, the upper lifting mold platform is slidably arranged on the upper lifting gantry column, and the upper mold is installed on the upper lifting mold platform; the lower lifting mold platform is fixedly connected to the lower lifting gantry column, the lower lifting gantry column is slidably arranged on the sliding sleeve seat, and the sliding sleeve seat is fixed to the support base; the bottom of the connecting support frame is fixed to the sliding sleeve seat and the support base to form an upper and lower lifting structure connected as a whole.

[0012] Preferably, the bottom of the lower mold is fixedly connected with an absorbed iron near the balancing weight box, and the connecting plate of the balancing weight box is provided with an electromagnet.

[0013] Preferably, the placement seat is provided with a rotatable balancing auxiliary wheel, and when the balancing weight box is lowered into place, the connecting plate at the bottom of the balancing weight box can be slidably placed on the balancing auxiliary wheel.

[0014] Preferably, each lower mold includes a molding cavity and a demoulding unit, the demoulding unit is provided with a demoulding plate and a demoulding lifting plate, the demoulding plate is provided with a demoulding device according to the mold cavity of the molding cavity, the demoulding lifting plate and the demoulding plate are connected by a connecting rod, during demoulding, the telescopic rod of the demoulding cylinder extends upward to push the demoulding lifting plate upward, the demoulding lifting plate drives the demoulding plate to move upward, and the demoulding device of the demoulding plate drives the opening edge of the molded product to move upward for demoulding.

[0015] Preferably, a demoulding clutch slide bar is provided at the bottom of the demoulding lifting plate, and the demoulding clutch slide bar passes through the bottom of the lower mold and the translational sliding base; the telescopic rod of the demoulding cylinder is fixedly connected with a demoulding top piece, and the demoulding top piece is provided with a push rod upward. During demoulding, the push rod is upwardly aligned with the demoulding clutch slide bar of the lower mold demoulding unit.

[0016] Preferably, the translation drive device consists of a motor, a transmission wheel and a transmission belt. The transmission wheel can be rotatably installed on the lower lifting mold platform. The transmission belt is installed on the transmission wheel and the transmission belt is connected to one of the lower molds. The motor drives the transmission wheel and the transmission belt to rotate; the transmission belt directly or indirectly drives the two lower molds to translate simultaneously.

[0017] Preferably, the lower lifting drive device is provided with an upper rotating support seat, a lower rotating support seat, an upper lifting motion crank, a lower lifting motion crank, a positioning lifting shaft, a vertical lifting limit sliding member, a lever pressing and pulling lifting crank, a positioning rotating sliding lever crank, a positioning lifting shaft and a push-pull driving mechanism.

[0018] The lower rotating support seat is fixed to the stationary base, and the lower rotating support seat and the lower end of the lower lifting crank are connected to each other with a hinge axis, and the upper end of the lower lifting crank is connected to the positioning rotating sliding lever crank through the hinge axis, and the upper end of the positioning rotating sliding lever crank and the lower end of the upper lifting crank are hinged through the hinge axis, and the upper end of the upper lifting crank and the lower end of the upper rotating support seat are connected to each other with a hinge axis. The upper rotating support seat is fixed to the bottom of the lifted object, the positioning lifting shaft is installed on the positioning rotating sliding lever crank, and the positioning lifting shaft is installed with a vertical lifting limit sliding member, and the vertical lifting limit sliding member is slidably arranged on the stationary support seat, forming a vertical lifting structure in which the hinge axis connecting the lower lifting crank and the lower rotating support seat, the positioning lifting shaft, and the hinge axis connecting the upper lifting movement and the upper rotating support seat are always in a straight line.

[0019] The lower tail end of the positioning rotating sliding lever crank is relatively rotatably connected to one end of the lever pressing, pulling and lifting crank through a shaft; the other end of the lever pressing, pulling and lifting crank is driven to move by a push-pull driving mechanism.

[0020] The purpose of the present invention is to avoid the shortcomings of the prior art and provide an in-mold labeling, conveying and packing production line that can be improved based on a traditional cup making machine, has low modification cost, high production efficiency and can realize white cup preparation, in-mold labeling, product stacking, conveying and packing in one mold and three actions.

[0021] A one-mold three-action in-mold labeling conveying and packing production line is provided, comprising a plastic container thermoforming machine as claimed in any one of claims 1 to 4 and two groups of label conveying groups, wherein two lower molds of the plastic container thermoforming machine move left and right to work alternately, and each lower mold corresponds to one group of label conveying groups;

[0022] Each label conveying group includes an in-mold labeling material taking and conveying robot, a label transfer conveying device, a label conveying robot and a label bin;

[0023] During each in-mold labeling operation, the actions of the lower mold and the in-mold labeling robot include:

[0024] The first action: when the lower mold of the forming station completes the forming of the product, the other lower mold at the unloading station also completes the label removal and descends synchronously; the in-mold labeling robot located on one side of the counterweight box translates to the label removal station while the two lower molds translate and replace the stations, and completes the label connection while the lower lifting mold platform rises; when the label transfer conveyor synchronously rises to complete the label transmission, the lower lifting mold platform connects to the lower mold and descends together, and arrives at the label rising and unloading station synchronously before the next in-mold labeling robot arrives at the material connection station; after the label transfer conveyor and the label transfer conveyor arrive at their respective unloading stations, the label transfer robot continuously completes the descent to transfer the label, rises after unloading, translates to the top of the label bin, descends to take the label, rises, and translates to the material removal station before the label transfer conveyor arrives at the material connection station to wait;

[0025] The second action: while the two lower molds are moving horizontally to exchange positions, the in-mold labeling robot that has completed label reception is synchronously moved horizontally to the label transfer station to wait; the other in-mold labeling robot that has completed label transfer is synchronously moved horizontally to the label removal station, and the label transfer unit on the same side of the in-mold labeling robot operates in coordination according to the programmed preset;

[0026] The third action: when a lower mold rises and closes with the upper mold to prepare the product, the in-mold labeling robot cooperates with the other lower mold and is located in the standby position to stick the label on the inner wall of the mold cavity. At the same time, the two sets of label conveying units operate in coordination according to the preset programming.

[0027] Preferably, a plastic container stacking, conveying and packing unit is also connected. After the sheet of the cup making machine is formed at the forming station, the sheet conveying chain rail carries the corners and the finished product to the punching and shearing station, and then conveys them to the finished product receiving and conveying device, and the remaining corners are conveyed to the winding station. The finished product receiving and conveying device is provided with a rising and unloading device and a receiving and unloading conveying robot. The finished product receiving and conveying device conveys the finished product to the receiving and stacking conveying device, the transfer conveying robot, the single-row whole-strip splicing and lateral conveying device, the limited receiving and flipping transverse quantitative conveying device, the receiving and quantitative conveying platform, the layered receiving and quantitative conveying device and the multi-specification conveying and packing device complete the whole process of conveying and packing.

[0028] The location and operation characteristics of the plastic container stacking, conveying and packing unit are as follows: The receiving tray is located outside the finished product receiving and conveying device. After the finished product receiving and conveying device completes the stacking, the product is lifted up by the rising unloading device and conveyed to the receiving and unloading conveying robot. The receiving and unloading conveying robot runs to the receiving tray located outside the finished product stacking and storage device to vertically unload. After the receiving tray completes the receiving, it moves horizontally to the sampling station or the unloading station. The transfer conveying robot arranges the receiving materials and moves back and forth between the receiving station and the single-row whole-stack lateral conveying device to receive and unload. The single-row whole-stack lateral conveying device vertically stacks the materials. After completing the receiving, the product is pushed to the limited receiving and flipping horizontal quantitative conveying device. The limited receiving and flipping horizontal quantitative conveying device then conveys the product to the receiving and quantitative conveying platform. The receiving and quantitative conveying platform pushes the product to the receiving and unloading trays with limited positions on both sides of the layer receiving and quantitative conveying device. The layer receiving and quantitative conveying device sends the entire tray of products on the receiving and unloading trays into the carton. This action is repeated until the box is full.

[0029] Beneficial effects of the present invention:

[0030] (1) The plastic container thermoforming machine of the present invention is provided with two lower molds, and the two lower molds are translated left and right to work alternately, which overturns the movement mode of the lower mold of the traditional cup making machine, which can only be lifted up and down but not translated left and right. In addition, since the lower mold of the traditional cup making machine cannot be translated left and right, the equipment used for in-mold labeling or the stacking transmission equipment can only be set in front of the cup making machine, resulting in the traditional technology of in-mold labeling requiring eleven actions or six actions to complete one mold of in-mold labeling production. However, because the two lower molds of the present invention can be lifted up and down and translated left and right to work alternately, when one of the lower molds is in the label receiving station, while receiving and placing the label, the other lower mold is completing the forming at the forming station, and the in-mold labeling robot on the other side takes the label at the same time and translates to the top of the label unloading station to wait, and the punching and shearing station in front of the forming station completes the punching and shearing at the same time, and the finished product receiving and stacking station is in front, so that the in-mold labeling is completed in three actions for one mold.

[0031] At the same time, another lower mold is located on the outside of the connecting support frame to connect the label. In this structure, each lower mold can work normally when it reaches the forming station, without waiting for the in-mold labeling robot to perform multiple actions to enter the label placement like the traditional process, which shortens the production time of each mold and improves work efficiency. When producing white cups (products that do not require labeling), the lower mold mechanism can realize double-mold cup replacement and material transmission, which has high productivity.

[0032] (2) The two lower molds of the present invention can be connected to the left or right balancing weight box to form a balancing linkage group as needed to ensure the balanced movement and smooth lifting of the two lower molds. The balancing weight box can contain weights and other accessories and flexibly adjust the weight of the leveling weight box according to the weight of the lower mold.

[0033] (3) After the sheet is thermoformed into a product, the traditional cup-making machine uses a cup-lifting mechanism to slightly lift the product to achieve demolding when the mold is opened and lowered to facilitate subsequent material removal. However, since the present invention has two lower molds and the movement mode of the two lower molds is different from that of the traditional lower mold, the cup-lifting mechanism of the traditional lower mold cannot be used to demold the product from the mold cavity of the lower mold of the present invention. How to improve the equipment structure is another technical problem in this field. The lower mold of the present invention is provided with a demolding device, and the demolding device is provided with a demolding plate. The demolding plate is provided with demolding ribs according to the mold cavity of the forming mold cavity. The demolding ribs are located outside the mold cavity opening and can drive the formed product to rise to separate the product from the mold cavity to achieve the purpose of demolding.

[0034] (4) The weight of the lower mold of the plastic container thermoforming machine of the present invention is very large, so a lower lifting drive device capable of carrying large-tonnage heavy objects is required. The lower lifting drive device of the present invention sets the rotating lifting crank to be approximately L-shaped, and uses the middle turning point of the rotating lifting crank as a fulcrum, so that the two arms serve as force arms to form a lever. The upper connecting end of the rotating lifting crank is longer than the lower connecting end, and the lever principle is used to achieve large-scale lifting and lowering, and the load-bearing capacity is large, so large-tonnage heavy objects can be easily and smoothly lifted or lowered.

[0035] (5) The upper mold mechanism and the lower mold mechanism of the present invention are respectively provided with independent gantry columns. The pillars of the upper mold mechanism and the pillars of the lower mold mechanism together replace the traditional whole gantry column. The segmented setting of the gantry column can reduce the weight of each section and has greater flexibility. The upper and lower mold platform support frames can accurately connect the gantry columns of the upper mold mechanism and the lower mold mechanism, thereby ensuring the accuracy when the upper mold and the lower mold are closed.

[0036] (6) The actions of the lower mold and the in-mold labeling robot in each in-mold labeling process include mold separation and descent, linked translation and ascending and closing. This process is normal in one of the lower molds, and the lower mold located outside the cup making machine receives the label transmitted by the in-mold labeling robot after the product is unloaded. The present invention not only realizes the affixing of rich labels with pictures and texts while producing and preparing products, greatly improves the aesthetics of the products, increases the added value of the machinery and cup making products, but also simplifies the number of actions of the in-mold labeling robot per mold. Only 3 actions are needed to complete the in-mold labeling production, and the production efficiency is extremely high. Compared with injection molds, the upper mold and lower mold used in the cup making machine of the present invention have low investment costs and short production cycles, which are conducive to reducing product improvement costs and quickly seizing the market.

[0037] (7) The plastic container stacking and conveying unit connected by the present invention, from the finished product collection and stacking to the multifunctional loading and unloading conveying device to the material receiving and stacking conveying device, includes a single-row transfer conveying robot and a single-row whole-line stacking and lateral pushing device, all of which are vertically stacked and conveyed throughout the process, and the limited material receiving and flipping and flattening conveying device is connected and pushed to the material receiving and quantitative conveying device and the quantitative whole-layer pushing and packing device and the multi-specification packing device. All of them are front-to-back linked and limited transmission, ensuring that containers and lids of any specifications and shapes are neatly and smoothly conveyed throughout the process without falling or being messy. In particular, the vertical loading and unloading of multiple groups of limited picks of the multifunctional loading and unloading device, the shifting and dislocation pushing cylinder of the single-row transfer conveying robot, and the double single-row whole-line stacking and lateral pushing and unloading device ensure the smooth transmission of the dislocation arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0039] Figure 1 It is a structural schematic diagram of an embodiment of the one-mold-three-action in-mold labeling conveying and packing production line of the present invention.

[0040] Figure 2 It is a structural schematic diagram from another angle of an embodiment of the one-mold-three-action in-mold labeling conveying and packing production line of the present invention.

[0041] Figure 3 The invention discloses a plastic container thermoforming machine and two label conveying groups of a one-mold-three-action in-mold labeling conveying and packing production line.

[0042] Figure 4 It is a schematic structural diagram of an embodiment of a thermoforming machine of the present invention.

[0043] Figure 5 It is a structural schematic diagram of a lower mold mechanism of a thermoforming machine according to an embodiment of the present invention.

[0044] Figure 6 It is a structural schematic diagram of an embodiment of two lower molds and a demoulder of a thermoforming machine of the present invention.

[0045] Figure 7 It is a schematic structural diagram of an embodiment of two lower molds of a thermoforming machine of the present invention.

[0046] Figure 8 It is a schematic diagram of two lower mold lifting drive mechanisms of the thermoforming machine of the present invention.

[0047] Fig. 9 It is a schematic diagram of two lower mold lifting drive mechanisms and a balancing weight box of the thermoforming machine of the present invention.

[0048] Fig.10It is a schematic diagram of the linkage state of the lower mold mechanism of an embodiment of the thermoforming machine of the present invention.

[0049] Fig.11 It is a schematic diagram of the lower mold mechanism linkage from another angle of an embodiment of the thermoforming machine of the present invention.

[0050] Fig.12 It is a schematic diagram of the rise of the lower lifting drive device of the lower mold mechanism of an embodiment of the thermoforming machine of the present invention.

[0051] Fig.13 It is a schematic diagram of the folded state of the lower lifting drive device of the lower mold mechanism of an embodiment of the thermoforming machine of the present invention.

[0052] Fig.14 It is a schematic diagram of a lower lifting drive device of a lower mold mechanism of another embodiment of a thermoforming machine of the present invention.

[0053] Fig.15 It is a schematic diagram of a lower lifting drive device of a lower mold mechanism of another embodiment of a thermoforming machine of the present invention.

[0054] Fig.16 It is a schematic structural diagram of a finished product receiving and conveying device according to an embodiment of the present invention.

[0055] Fig.17 It is a schematic diagram of another state of a finished product receiving and conveying device according to an embodiment of the present invention.

[0056] Fig.18 It is a schematic diagram of the structure of a multi-mode material receiving and conveying robot of a finished product receiving and conveying device according to an embodiment of the present invention.

[0057] Fig.19 It is a schematic diagram of the material receiving storage channel and the limit card structure of a finished product receiving and conveying device in one embodiment of the present invention.

[0058] Fig. 20 It is a schematic structural diagram of a finished product receiving and conveying device according to an embodiment of the present invention.

[0059] Fig.21 It is a schematic structural diagram of a transfer conveying robot and a single-row whole-line overlapping lateral conveying device according to an embodiment of the present invention.

[0060] Fig. 22 It is a schematic structural diagram from another angle of a transfer conveying robot and a single-row whole-line overlapping lateral conveying device of an embodiment of the present invention.

[0061] Fig.23 It is a schematic diagram of the structure of a clutch-limited material receiver of a single-row, whole-strip splicing and lateral conveying device according to an embodiment of the present invention.

[0062] Fig.24 It is a partial structural schematic diagram of a position-limited material receiving, overturning and transverse quantitative conveying device according to an embodiment of the present invention.

[0063] Fig.25 It is a schematic diagram of the structure of a partial device for limiting material connection, turning over and horizontal quantitative conveying at another angle according to an embodiment of the present invention.

[0064] Fig.26 It is a schematic structural diagram of a material receiving and quantitative conveying platform according to an embodiment of the present invention.

[0065] Fig. 27 It is a schematic structural diagram of a quantitative conveying device for layer-by-layer material connection according to an embodiment of the present invention.

[0066] Fig.28 It is a schematic diagram of the docking and cooperation of a position-limited material receiving and flipping transverse quantitative conveying device, a material receiving and quantitative conveying platform and a layer-based material receiving and quantitative conveying device in one embodiment of the present invention.

[0067] Fig.29 It is another schematic diagram of the docking and cooperation between the position-limited material receiving and flipping transverse quantitative conveying device, the material receiving and quantitative conveying platform and the layer-by-layer material receiving and quantitative conveying device according to one embodiment of the present invention.

[0068] Fig.30 The present invention is a schematic diagram of the docking and cooperation between a quantitative conveying device for receiving materials by layer and a conveying device for receiving materials in multiple specifications and packing them in boxes according to an embodiment of the present invention.

[0069] Fig.31 It is a schematic structural diagram of a multi-specification material receiving, packing and conveying device according to an embodiment of the present invention.

[0070] Fig.32 It is a structural schematic diagram of a material receiving, translational and rotational driving unit of a multi-specification material receiving, conveying and packing device according to an embodiment of the present invention.

[0071] Fig.33 It is a structural schematic diagram of a carton placement unit of a multi-specification material receiving, conveying and packing device according to an embodiment of the present invention.

[0072] Fig.34 It is a structural schematic diagram of a diaphragm ring removal unit of a multi-specification material receiving, conveying and packing device according to an embodiment of the present invention.

[0073] exist Figures 1 to 34 Included are:

[0074] A Plastic Container Thermoforming Machine

[0075] A1 connecting support frame, A2 upper mold mechanism, A3 lower mold mechanism, A4 electric furnace, A4-1 sheet conveyor chain

[0076] Upper mold mechanism: A2-1 upper mold, A2-2 upper support platform, A2-3 upper lifting drive device, A2-4 upper lifting mold platform, A2-5 upper lifting gantry column;

[0077] Lower mold mechanism:

[0078] A3-1 lower mold, A3-11 molding cavity, A3-12 demoulding unit, A3-13 demoulding cylinder, A3-14 demoulding device, A3-15 demoulding lifting plate, A3-16 connecting rod, A3-17 demoulding clutch slide bar, A3-18 translation sliding base, A3-19 demoulding top piece, A3-20 ejector, A3-25 traction bearing seat,

[0079] A3-2 lower lifting mold table, A3-21 slider, A3-22 rail, A3-23 latch, A3-24 magnet,

[0080] A3-3 lower lifting drive device, A3-32 push-pull rod, A3-33 lower support rotating assembly, A3-31 push-pull drive mechanism, A3-331 lower connecting seat, A3-332 lower supporting shaft, A3-333 lower lifting connecting piece, A3-34 rotating lifting crank, A3-35 upper rotating assembly,

[0081] A3-4 translation drive device, A3-41 motor, A3-42 transmission belt, A3-43 transmission wheel,

[0082] A3-5 balancing weight box, A3-51 connecting plate, A3-6 placing seat, A3-61 balancing auxiliary wheel, A3-7 supporting base, A3-8 lower lifting gantry column;

[0083] B in-mold labeling robot, C label transfer conveyor, D label conveying robot, E label warehouse. DETAILED DESCRIPTION

[0084] The present invention will be further described with reference to the following examples. Example 1

[0085] See also Figures 1 to 13The plastic container thermoforming machine A of this embodiment includes an upper mold mechanism A2, a lower mold mechanism A3 and an electric furnace A4. The electric furnace A4 is located between the upper mold mechanism A2 and the lower mold mechanism A3. The electric furnace A4 heats the sheet to soften the sheet. The upper mold mechanism A2 is provided with an upper mold A2-1, and the lower mold mechanism is provided with two lower molds, a lower lifting mold platform A3-2, a lower lifting drive device A3-3 and a translation drive device A3-4. The two lower molds are slidably installed on the lower lifting mold platform A3-2. The lower lifting mold platform A3-2 can be driven by the lower lifting drive device A3-3 to rise or fall so that the lower mold is closed with the upper mold or separated from the upper mold. In this embodiment, the upper mold mechanism is installed on the connecting support frame A1, the upper end of the connecting support frame A1 is fixed with the upper support platform A2-2, the upper end tail of the upper lifting gantry column A2-5 is fixed to the upper support platform A2-2, and the lower end is fixed to the beams on both sides of the connecting support frame located outside the sheet conveying chain, the upper lifting mold platform A2-4 is slidably arranged on the upper lifting gantry column A2-5, and the upper mold is installed on the upper lifting mold platform A2-4; the lower lifting mold platform A3-2 is fixedly connected to the lower lifting gantry column, the lower lifting gantry column is slidably arranged on the sliding sleeve seat, and the sliding sleeve seat is fixed to the support base; the bottom of the connecting support frame is fixed to the sliding sleeve seat and the support base to form an upper and lower lifting structure connected as a whole. Compared with the traditional technology in which the upper and lower pillars are a whole pillar, the upper mold mechanism A2 and the lower mold mechanism A3 are respectively provided with independent pillars, and the pillars of each mechanism are lighter and more flexible, which is suitable for the independent and high-speed operation of the upper mold mechanism A2 and the lower mold mechanism A3.

[0086] Each lower die is respectively provided with a balancing weight box, which can slide on the placement seat and the lower lifting die table A3-2; ​​a latch A3-23 is provided on the side of the bottom of the lower die close to the balancing weight box, and a connecting plate is connected to the side of the balancing weight box close to the lower die, and a latch A3-23 hole is provided at the front end of the connecting plate, and the latch A3-23 of the lower die can be inserted into the latch A3-23 hole; when the lower lifting die table A3-2 is lowered into place, the latches A3-23 of the two lower dies are inserted into the latch A3-23 holes of the connecting plates of the corresponding balancing weight boxes to form a balancing linkage structure that can be mutually connected and alternately exchange workstations, and the lower die that has completed the forming pushes the corresponding balancing weight box out of the lower lifting die table A3-2 and makes the balance The balancing weight box slides to the placement seat to wait, while the balancing weight box on the other side is pulled up and down from the placement seat by the corresponding bottom pin A3-23 of the lower mold with the plug hole as the fulcrum to lift the mold table A3-2. The lower mold located at the receiving and unloading standby and conveying station is translated to the forming standby station, and the lower mold at the forming standby station is moved to the receiving and unloading standby and conveying station, wherein the station is only the position where the lower mold works and is not a real object. The selection of the position can be set according to the actual situation according to the space, size and internal layout of the factory building. The position of the station does not constitute a limitation on the scope of the present invention. As long as there is a position for the lower mold to receive and unload materials, wait or convey, it falls within the protection scope of the present invention.

[0087] In this embodiment, a translation sliding base A3-18 is provided at the bottom of each lower mold, but it should be noted that the translation sliding base A3-18 is not necessary. The translation sliding base A3-18 can be added to achieve the purpose of only modifying the translation sliding base A3-18 without modifying all the lower molds, which is more versatile. The lower mold can be detachably mounted on the translation sliding seat, so that molds of different specifications can be replaced according to actual needs. The two translation sliding bases A3-18 are connected by a traction bearing seat A3-25. The bottom of the translation sliding base A3-18 is fixed with a slider A3-21, which is slidably arranged on a track A3-22, and the track A3-22 is fixed to the lower lifting mold platform A3-2. A clutch traction pin A3-23 is provided at the bottom of the tail end of the translation sliding base A3-18. When the translation sliding base A3-18 is not used, the two lower molds are directly connected by a connector and the slider is fixed at the bottom. The translation drive device A3-4 of the lower mold is composed of a motor A3-41, a transmission wheel A3-43 and a transmission belt A3-42. The transmission wheel A3-43 can be rotatably installed on the lower lifting mold platform A3-2, and the transmission belt A3-42 is installed on the transmission wheel A3-43 and the transmission belt A3-42 is connected to one of the lower molds. The motor A3-41 drives the transmission wheel A3-43 and the transmission belt A3-42 to rotate; the transmission belt A3-42 directly or indirectly drives the two lower molds to translate at the same time. There are many ways to connect the transmission belt A3-42 and the lower mold, such as special clips, nails, screws or other methods.

[0088] Each lower mold includes a molding cavity A3-11 and a demoulding unit A3-12. The demoulding unit A3-12 is provided with a demoulding plate A3-121 and a demoulding lifting plate A3-15. The demoulding plate A3-12 is provided with a demoulding device A3-14 according to the mold cavity of the molding cavity A3-11. The demoulding device A3-14 is composed of spacers, and the shape of the spacers is set according to the shape of the molding cavity A3-11. The demoulding lifting plate A3-15 and the demoulding plate A3-12 are connected by a connecting rod A3-16. When demoulding, the telescopic rod of the demoulding cylinder A3-13 extends upward to push the demoulding lifting plate upward, and the demoulding lifting plate drives the demoulding plate to move upward. The demoulding device of the demoulding plate drives the opening edge of the molded product to move upward for demoulding. The demoulding lifting plate A3-15 is provided with a demoulding clutch slide bar A3-17 at the bottom, which passes through the bottom of the lower mold and the translational sliding base A3-18; the demoulding cylinder A3-13 is fixed with a demoulding top piece A3-19 on its telescopic rod, which is provided with a push rod A3-20 upwards, and when demoulding, the push rod A3-20 is upwards aligned with the demoulding clutch slide bar A3-17 of the lower mold demoulding unit. In this way, the demoulding cylinder A3-13 can lift the demoulding lifting plate A3-15 in a limited space, and the structure is compact and occupies little space. The prior art uses a cup bottom rod assembly to lift up the finished product to separate it from the lower mold, but the cup bottom rod assembly lifts up the finished product that has not been fully cooled, which is easy to produce a depression on the bottom of the cup or deform the bottom of the finished cup. The present invention uses the demolding ribs with the demolding plate to slightly lift the finished product by the cup edge or half-connected corners of the finished product to separate it from the lower mold and demold it. Compared with the prior art, the demolding method of the present invention will not form a depression or deformation on the bottom of the cup, and there is no need to spend time waiting for the product to be fully cooled before demolding in order to reduce the depression or deformation, which not only ensures product quality but also improves work efficiency.

[0089] When the lower lifting die table A3-2 rises to its position, when the upper die A2-1 and a lower die are closed, the cup-making sheet is clamped in the molding cavity of the upper die A2-1 and the lower die and hot-pressed, and the other lower die simultaneously completes the label removal. When the lower lifting die table A3-2 descends, the demoulding cylinder A3-13 of the demoulding unit A3-12 rises to make the product separate from the molding cavity A3-11 and hang it at the corner, and then the demoulding unit A3-12 is reset; when the lower lifting die table A3-2 descends to its position, the traction clutch latch A3-23 under the translation sliding base A3-18 of the lower die outside the forming station is inserted into the latch A3-23 hole of the balance weight box A3-5 to form a translation linkage structure in which the two lower dies are each pulled by the balance weight box A3-5 on the outside. The bottom of the lower die is fixedly connected with the magnet A3-24 near the balance weight box, and the connecting plate A3-51 of the balance weight box A3-5 is provided with an electromagnet. The placement seat A3-6 is provided with a rotatable balancing auxiliary wheel A3-61. When the balancing weight box A3-5 is lowered into place, the connecting plate A3-51 at the bottom of the balancing weight box A3-5 can be slidably placed on the balancing auxiliary wheel A3-61. In order to obtain a better connection and separation effect, when the latch A3-23 is inserted into the latch hole A3-23, power is turned on at the same time to make the electromagnet and the magnet A3-24 adsorbed and connected, thereby strengthening the connection between the lower mold and the balancing weight box A3-5, and the connection is more firm. When the lower mold and the balancing weight box A3-5 need to be separated, it is only necessary to turn off the power to remove the suction force of the electromagnet on the magnet A3-24, and at the same time, the lower lifting platform rises, and the latch A3-23 leaves the latch hole. Among them, in order to make the balancing weight box A3-5 dock with the lower mold more smoothly, the placement seat A3-6 is provided with a balancing auxiliary wheel A3-61. When the balancing weight box A3-5 docks with the lower mold, the balancing auxiliary wheel A3-61 can support the attracted iron A3-24 of the balancing weight box A3-5 to ensure that the balancing weight box A3-5 smoothly transitions to the lifting platform under the knife.

[0090] The upper mold A2-1 lifting drive device and the lower lifting drive device A3-3 of this embodiment are any devices that can lift the lower lifting platform, and can be hydraulic cylinders, air cylinders or screw lifts and other devices. Technical personnel in this field should be able to clearly understand the structure and working principle of conventional lifting drive devices.

[0091] It should be noted that the motor A3-41, cylinder, electric furnace A4, electromagnet, transmission wheel A3-43, transmission belt A3-42 and auxiliary wheel and other components used in this embodiment belong to the prior art, and the technical field should be able to understand their structural principles, but the thermoforming machine of the present invention composed of several combinations of various components is a creative invention, and the present invention has been described in detail in combination with the embodiments and drawings, but the detailed description of the embodiments does not constitute a limitation on the protection of the claims.

[0092] The one-mold-time three-action in-mold labeling conveying and packing production line of this embodiment includes the above-mentioned plastic container thermoforming machine A and two groups of label conveying groups. The two lower molds of the plastic container thermoforming machine A move left and right to work alternately, and each lower mold corresponds to a group of label conveying groups, wherein each group of label conveying groups includes an in-mold labeling robot B, a label transfer conveying device C, a label conveying robot D and a label bin EE. One of the key differences between this production line and the prior art is that when one lower mold is located at the thermoforming station and the other lower mold is located at the labeling station, the in-mold labeling robot B puts the label of the label transfer conveying device C into the lower mold of the labeling station, so as to complete the in-mold labeling with three actions per mold. Specifically, during each mold-time in-mold labeling, the actions of the lower mold and the in-mold labeling robot B include:

[0093] A one-mold three-action in-mold labeling conveying and packing production line, comprising a plastic container thermoforming machine A as claimed in any one of claims 1 to 4 and two groups of label conveying groups, wherein the two lower molds of the plastic container thermoforming machine A move left and right to work alternately, and each lower mold corresponds to one group of label conveying groups;

[0094] Each label conveying group includes an in-mold labeling material taking and conveying robot, a label transfer conveying device C, a label conveying robot D and a label bin E;

[0095] During each in-mold labeling operation, the actions of the lower mold and the in-mold labeling robot B include:

[0096] The first action: when the lower mold of the forming station completes the forming of the product, the other lower mold at the unloading station also completes the label removal and descends synchronously; the in-mold labeling robot B located on one side of the counterweight box translates to the label removal station while the two lower molds translate and replace the stations, and completes the label connection while the lower lifting mold platform A3-2 rises; when the label transfer conveyor C rises synchronously to complete the label transmission, the lower lifting mold platform A3-2 connects to the lower mold and descends together, and arrives at the label rising and unloading station synchronously before the next in-mold labeling robot B arrives at the connection station; after the label transfer conveyor and the label transfer conveyor C arrive at their respective unloading stations, the label transfer robot D continuously completes the descent to transfer the label, rises after unloading, translates to the top of the label bin E, descends to take the label, rises, and translates to the unloading station before the label transfer conveyor C arrives at the connection station to wait;

[0097] The second action: while the two lower molds are moving horizontally to exchange positions, the in-mold labeling robot B that has completed label reception is synchronously moved horizontally to the label transfer station to wait; the other in-mold labeling robot B that has completed label transfer is synchronously moved horizontally to the label removal station, and the label transfer unit of the in-mold labeling robot B and the label transfer unit are operated in coordination according to the programmed preset;

[0098] The third action: when a lower mold rises and closes with the upper mold to prepare the product, the in-mold labeling robot B, which cooperates with the other lower mold and is located at the standby station, sticks the label on the inner wall of the mold cavity. At the same time, the two sets of label conveying units operate in coordination according to the preset programming.

[0099] Next time, the cupping machine and the in-mold labeling material taking and conveying robot will repeat the above actions, all of which are operated by the PLC control system. Example 2

[0100] The main technical scheme of this embodiment is basically the same as that of Embodiment 1. The features not explained in this embodiment are explained in Embodiment 1 and will not be described again. In this embodiment, a plastic container stacking, conveying and packing unit is also connected. After the sheet of the cup making machine is formed at the forming station, the sheet conveying chain track brings the corners together with the product to the punching and shearing station, where it is punched and sheared by the punching and shearing machine F and then conveyed to the finished product receiving and conveying device G, and the remaining corners are conveyed to the winding station. The finished product receiving and conveying device G is provided with an ascending and unloading device G01 and a receiving and unloading conveying robot G02. The finished product receiving and conveying device G conveys the finished product to the receiving and stacking conveying device H, the transfer conveying robot I, the single-row whole-strip overlapping lateral conveying device J, the limited receiving and flipping transverse quantitative conveying device K, the receiving and quantitative conveying platform L, the layered receiving and quantitative conveying device M and the multi-specification conveying and packing device N to complete the whole process of conveying and packing.

[0101] The position and operation characteristics of the plastic container stacking, conveying and packing unit are as follows: the receiving tray of the receiving and stacking conveying device H is located outside the finished product receiving and conveying device G. After the finished product receiving and conveying device G completes the stacking, the product is lifted up by the rising unloading device G1 and conveyed to the receiving and unloading conveying robot G2. The receiving and unloading conveying robot G2 moves to the receiving tray located outside the finished product stacking and storage device G to vertically unload the material. After the receiving tray completes the material receiving, it moves horizontally to the sampling station or the unloading station. The transfer conveying robot I arranges the materials and moves back and forth between the receiving station and the single-row whole-line stacking. The lateral conveying device J unloads materials indirectly, and the single-row whole-stack lateral conveying device J stacks materials vertically. After the materials are connected, the products are pushed to the limited material connection and flipping horizontal quantitative conveying device K. The limited material connection and flipping horizontal quantitative conveying device K then conveys the products to the material connection and quantitative conveying platform L. The material connection and quantitative conveying platform L pushes the products to the limited material connection and unloading trays on both sides of the layer material connection and quantitative conveying device M. The layer material connection and quantitative conveying device M sends the entire tray of products on the material connection and unloading tray into the carton placed in the multi-specification conveying and packing device N, and this action is repeated until the box is full.

[0102] The punching and shearing machine F, finished product receiving and conveying device G, material receiving and stacking conveying device H, transfer conveying robot I, single-row whole-strip splicing and stacking lateral conveying device J, limited position receiving and flipping transverse quantitative conveying device K, receiving and quantitative conveying platform L, layer receiving and quantitative conveying device M and multi-specification conveying and packaging device N can all adopt the equipment in the prior art. However, in this embodiment, the structure of the aforementioned equipment adopts the optimal solution of the present invention.

[0103] In this embodiment, the finished product receiving and conveying device G includes a discharge mechanism, a finished product collecting device G2 and a multi-mode material receiving and conveying robot, wherein the discharge mechanism is provided with a plurality of discharge push rods G1 and a discharge lifting drive device G3-7, and the discharge lifting drive device G3-7 drives the discharge push rod G1 to rise or fall; the finished product collecting device G2 is located above the discharge mechanism, and the finished product collecting device G2 is provided with a limit support plate G2-1, and the limit support plate G2-1 is provided with a through hole G2-2 corresponding to each discharge push rod G1, and a plurality of limit rods G2-3 are provided around the through hole G2-2, and a material receiving storage channel G2-4 is formed between the plurality of limit rods G2-3, and each limit rod G2-3 is provided with a limit card G2-5; the multi-mode material receiving and conveying machine The manipulator includes multiple groups of storage and conveying components G3-1, a conveying support plate G3-5, a translation drive device G3-5, a lifting drive device G3-7 and a discharge component. The conveying support plate G3-5 is located above the finished product collecting device G2. Multiple groups of storage and conveying components G3-1 are installed on the conveying support plate G3-5 and are driven to translate by the translation drive device G3-5. Each group of storage and conveying components G3-1 is composed of multiple storage limiting rods G3-2 with convex points G3-3 at the lower ends, and a storage conveying cavity G3-4 is formed between the multiple storage limiting plates; the part of the discharge component is located above the storage conveying cavity G3-4 without colliding with the storage conveying component G3-1, and the lifting drive device G3-7 can make the storage conveying cavity G3-4 and the discharge component move relative to each other. The unloading assembly is composed of a plurality of mutually parallel plates G3-8, and the plates G3-8 can be inserted between the conveying limit rods G2-3 of each group of material picking and conveying assemblies; during unloading, the translation drive device G3-5 drives the storage and conveying assembly G3-1 to translate to a preset work station, at which time the plates G3-8 are inserted into the storage and conveying cavity G3-4, and the lifting drive device G3-7 drives the material picking and conveying assembly to rise, and the plates G3-8 press the products in the storage and conveying cavity G3-4 to place the stacked products in the material receiving and placing position to cause the stacked products to fall off.After the sheet material is made into a finished product through the cup-making mold of the cup-making machine, the finished product is formed and half-hanging on the sheet material, and is unloaded, collected and stacked for transmission to the next device through the finished product receiving and conveying device G of this embodiment. When taking materials from the sheet material, the unloading lifting drive device drives the unloading push rod G1 to rise to push the finished product half-hanging on the sheet material upward and separate it from the edge of the sheet material. The pushed product is sent to the receiving storage channel G2-4 of the finished product collecting device G2 and is stuck on the limit card G2-5. This operation is repeated until the finished product is collected and stacked in the receiving storage channel. After the stacking is completed, the unloading lifting drive device drives the unloading push rod G1 to push the entire stack of products into the storage conveying cavity G3-4 formed by the storage conveying assembly G3-1, and the translation drive device G3-5 drives the storage conveying assembly G3-1 to translate to the preset work station. At this time, the plate G3-8 is inserted into the storage conveying cavity G3-4, and the lifting drive device G3-7 drives the storage conveying assembly to rise. The plate G3-8 presses the products in the storage conveying cavity G3-4 to place the stacked products in the receiving and placing position to make the stacked products fall. It should be noted that the lifting drive device G3-7 can drive the storage conveying assembly to rise or fall to match the height of the receiving and conveying device H as needed. When the lifting drive device G3-7 drives the storage conveying assembly to descend and unload to the receiving and conveying device H, the present embodiment is also provided with a plate lifting drive device G3-9. At this time, the plate lifting drive device G3-9 drives the plate G3-8 to descend and push the product to the receiving plate H1 of the receiving and conveying device H.

[0104] The receiving and conveying device H of this embodiment is provided with a translation support structure H2, a translation drive device (not shown in the figure) and a receiving plate H1. The receiving plate H1 is slidably arranged on the translation support structure H2 through a track and a slider, and the translation drive device drives the receiving plate H1 to move. The receiving plate H1 is provided with a plate body and a receiving plate. The receiving plate H1 is provided with a plurality of receiving holes, and cup molds are placed in the receiving holes; or, the receiving plate H1 is provided with a plurality of rows of receiving racks, and except for the last row of receiving racks, the other receiving racks can be independently lifted and unloaded in a single row; or, the receiving plate H1 is provided with a plurality of receiving troughs parallel to each other, and a limiting spacer is provided between two adjacent receiving troughs. Different conveying modes can select different receiving plates H1 according to different cup types. The translation drive device can be composed of a motor and a transmission assembly, and the specific installation method is a conventional means, which should be clearly understood by those skilled in the art. It should be noted that the translation drive device can also be an electric push rod, an electric screw rod or other driving device, as long as it can realize the movement of the receiving plate H1.

[0105] The number of the receiving trays H1 can be set to two, and the two receiving trays H1 operate alternately.

[0106] The transfer conveying robot is provided with a supporting fork I1, a material pressing limit plate I2, a material pressing cylinder I3, a staggered driving cylinder I4, a connecting seat I5, a translation lifting support seat I6, a lifting driving device and a translation driving device I8, and a plurality of material picking forks I1-1 are provided at the front end of the supporting fork; the material pressing cylinder I3 drives the material pressing limit plate I2 to rise or fall, and the material pressing cylinder I3 drives the material pressing limit plate I2 to fall and clamp the product up and down when pressing the product. Such a structure enables the transfer conveying robot I of this embodiment to meet the transmission of products of various cup shapes and different sizes without worrying about the stacked products being unstable and falling or scattered; the supporting fork I1 and the material pressing cylinder I3 are installed on the connecting seat I5, and the staggered driving cylinder I4 can drive the supporting fork to move left or right to meet the smooth transmission of staggered and non-staggered cups. The lifting drive device is installed on the translation lifting support seat I6 and drives the connecting seat I5 to rise or fall. The translation lifting support seat I6 is driven to translate by the translation drive device I8, and the translation drive device I8 is composed of a motor, a transmission wheel and a transmission belt. The transfer transmission robot of the present invention is simpler and more reasonable than the prior art structure, easy to operate and lower in cost. Among them, in this embodiment, the lifting drive device includes a toothed bar I7-1, a gear I7-2, a transmission shaft I7-3 and a motor I7-4. The lower end of the toothed bar is fixedly connected to the connecting seat, and the teeth of the toothed bar are meshed with the gear. The gear is fixedly connected to the transmission shaft. The transmission shaft is rotatably installed on the translation lifting support seat and driven to rotate by the motor. Such a structure can make the lifting of the connecting seat more stable and can achieve multiple lifting and lowering, and has a load-bearing effect.

[0107] The single-row whole-line lateral conveying device J includes a clutch limiter receiver J1, a frame J2, a lifting receiving platform J3, a lifting drive device J4, a push unloading plate J5 and a lateral pushing device J6. The lifting receiving platform J3 is located in the frame J2. The lifting drive device J4 drives the lifting receiving platform J3 to rise and fall. The clutch limiter receiver J1 is located at the upper part of the frame J2 and above the lifting receiving platform J3 to conveniently stack the products transmitted by the transfer conveying robot. The clutch limiter receiver J1 includes two forward and reverse screw rods J1-1, two clutch limiter rod support seats J1-3, multiple receiving limiter rods J1-5 and a forward direction drive device. The two forward and reverse screw rods J1-1 are rotatably installed on the clutch transmission support seat J1-10 respectively. The clutch transmission support seat J1-10 is fixed on the upper part of the frame J2. The two ends of the screw rod are installed on the clutch transmission support seat J1-10 on both sides through bearings. A transmission wheel J1-11 is installed at the end of the same side of the two screw rods, and the transmission wheel J1-11 is connected by a transmission belt J1-12. The forward and reverse driving device can drive the two screw rods to rotate synchronously in the forward or reverse direction. The two forward and reverse screw rods J1-1 are respectively provided with two screw nuts J1-2 that can move toward or away from each other. The two screw nuts J1-2 of each screw rod are respectively fixed to the two ends of a clutch limit rod support seat J1-3. In this embodiment, each clutch limit rod support seat J1-3 is provided with an aluminum profile and two aluminum profile connecting parts. The two ends of the aluminum profile are respectively fixed to the two aluminum profile connecting parts, and each aluminum profile connecting part is correspondingly connected to a screw nut J1-2. Due to the special structure of the aluminum profile, the material limit rod J1-5 can be locked at any position of the aluminum profile. It is easy to install and adjust the position, which can meet the requirements of products of different specifications. When the forward and reverse driving device can drive the two screw rods to rotate synchronously in the forward or reverse direction, the two clutch limit rod support seats J1-3 can move closer to each other or move away from each other. Among them, the forward and reverse driving device includes a cylinder, a rack J1-8 and a gear J1-9. The cylinder drives the rack J1-8 to rise or fall, and the rack J1-8 and the gear J1-9 are meshed for transmission. The gear J1-9 is fixed to the screw rod to drive the screw rod to rotate so that the two screw rod nuts J1-2 on the screw rod move toward or away from each other, and the screw rod nut J1-2 drives the clutch limit rod support seat J1-3 to move.

[0108] The clutch limit rod support seat J1-3 of this embodiment is equipped with multiple material connection limit rods J1-5. The clutch limit rod support seat J1-3 is installed with a limit rod fixing piece J1-4 by welding or bolts. The limit rod fixing piece J1-4 is fixedly connected to the material connection limit rod J1-5. Each material connection limit rod J1-5 is provided with a limit clamping ring J1-6 for supporting the product. The limit clamping ring J1-6 is directly inserted into the material connection limit rod J1-5 and clamped on the top of the limit rod fixing piece J1-4.

[0109] The lifting drive device J4 is composed of a lifting transmission wheel J4-11, a lifting transmission belt J4-12 and a lifting drive motor 4-3. The lifting material receiving platform J3 is connected to the lifting transmission belt J4-12 through a connecting component. Guide rails are installed on both sides of the lifting transmission belt J4-12. The lifting material receiving platform J3 is connected to the slider of the guide rail through a connecting component.

[0110] The push unloading plate J5 is located in the frame J2 and is perpendicular to the lifting receiving platform J3. The lateral pushing device J6 drives the push unloading plate J5 to move laterally. The lateral pushing device J6 includes a lateral pushing driving device and a pushing connecting seat. The push unloading plate J5 is installed on the pushing connecting seat. The pushing connecting seat is driven by the lateral pushing driving device to move laterally to push the material out of the frame J2. The lateral pushing driving device is composed of a lateral pushing motor, a lateral pushing driving wheel, a lateral pushing driving shaft and a lateral pushing driving belt. The lateral pushing driving belt drives the sliding seat to move laterally. The lateral pushing driving device is also a cylinder or other device that can drive the sliding seat to move laterally.

[0111] The limited position receiving material flipping transverse quantitative conveying device comprises a conveying platform K1, a discharge driving device K2, a material receiving and discharging connecting seat K3, a discharge pushing plate K4, a telescopic cylinder K5 and a telescopic receiving and discharging plate K6. The back of the conveying platform K1 is provided with a flipping support seat K7 and a flipping positioning connecting seat K8. The flipping positioning connecting seat K8 is rotatably mounted on the flipping support seat K7 through a pin shaft. The flipping positioning connecting seat K8 is hinged with the telescopic rod of the flip driving cylinder K9. The feed port of the limited position receiving material flipping transverse quantitative conveying device is equipped with a lifting gate K10 device. The lifting gate K10 device comprises a lifting gate K10 and a lifting cylinder K11. The lifting cylinder K11 drives the lifting gate K10 to rise or fall. A lifting drive device and a flip transfer limit gate K16 are also provided. The lifting drive device includes a lifting motor K12, a lifting gear K13, a lifting rack K14, and a lifting limit guide rail K15. The lifting gear K13 is installed on the output shaft of the lifting motor K12 and meshes with the lifting rack K14 for transmission. The back of the lifting rack K14 is fixedly connected to the lifting limit guide rail K15. The lower ends of the lifting rack K14 and the lifting limit guide rail K15 are connected to the flip limit gate. In this embodiment, the unloading drive device K2 is installed above the conveying platform K1 and drives the material receiving and translating unloading connection seat K3 to translate. The unloading push plate K4 is fixed in front of the material receiving and translating unloading connection seat K3. The telescopic cylinder K5 is installed on the translating unloading connection seat. The telescopic unloading plate K6 is installed on the telescopic rod of the telescopic cylinder K5. This arrangement can cooperate with the material receiving limit gate L7 of the material receiving and quantitative conveying platform L for conveying. When the unloading push plate K4 pushes the product to the limit position, the tail end of the product still remains on the conveying platform K 1. At this time, the telescopic cylinder K5 is needed to push the product forward so that all the products can enter the conveying platform L1 from the conveying platform K1. However, the telescopic receiving and unloading plate K6 cannot be returned immediately after pushing, otherwise the products will be scattered. Especially for lids, plates and other short-shaped products, the front and rear ends must be restricted at all times to prevent them from collapsing and scattering. After pushing the telescopic receiving and unloading plate K6, the material receiving limit gate L7 of the material receiving quantitative conveying platform L must be lowered to the position to block the tail end of the product under the action of the material receiving limit lifting drive device before returning to its original position. When the position-limited material receiving and flipping transverse quantitative conveying device K completes unloading and pushes the material into place, and the telescopic unloading plate retracts, the material receiving and limiting gate L7 of the material receiving and quantitative conveying platform L is lowered by the material receiving and limiting lifting and lowering drive device; when the position-limited material receiving and flipping transverse quantitative conveying device is reset, the material receiving and limiting gate is lowered again, thereby realizing the coordinated conveying of products by the position-limited material receiving and flipping transverse quantitative conveying device K and the material receiving and quantitative conveying platform L, and after the conveying is completed, all the products are confined in the material receiving and quantitative conveying platform L without collapse, and at the same time, the position-limited material receiving and flipping transverse quantitative conveying device K can be reset to start the next action.

[0112] The material receiving quantitative conveying platform L includes a conveying platform L1, a limit plate L4, abutting plate L5, abutting driving device L6, a material receiving limit gate L7, a material receiving limit lifting driving device and a discharge pushing device L13. The material receiving limit gate L7 is located at the feed port on one side of the conveying platform L1 and is driven to rise and fall by the material receiving limit lifting driving device. The limit plate L4 is arranged on the other side of the feed port of the conveying platform L1. The discharge pushing device L13 is installed above the conveying platform L1 to push the product out to the layer-by-layer material receiving quantitative conveying device. The conveying platform L1 is provided with a sliding groove L2. The fixed connecting piece of the abutting plate L5 is fixed to the slider through the sliding groove L2 and slides on the track L11 through the slider. The track L 11 The support frame L3 is fixed under the conveying platform L1, and the abutment driving device L6 includes a motor L8, a transmission wheel and a transmission belt. The front and rear ends of the conveying platform L1 are equipped with transmission wheels, the conveyor belt is installed on the transmission wheel and the transmission wheel is driven by the motor L8, and the transmission belt is connected with a shift fork. When the unloading and pushing device L13 completes unloading, the shift fork pushes the abutment plate L5 to the discharge port of the limited material receiving and flipping horizontal quantitative conveying device to wait, and then cooperates with the unloading and pushing plate L14 of the limited material receiving and flipping horizontal quantitative conveying device to receive the material. When the unloading drive device of the limited material receiving and flipping horizontal quantitative conveying device unloads and pushes the product, the object pushes the abutment plate L5 to slide back to the bottom of the limited plate L4.

[0113] The material receiving limit lifting and lowering driving device of the material receiving quantitative conveying platform L includes a motor L8, a gear L9, a rack L10, a rail L11, a slider and a slider support seat L12. The slider is fixed to the slider support seat L12, the rail L11 is slidably connected to the slider, the back of the rack L10 is fixed to the rail L11, the lower ends of the rack L10 and the rail L11 are connected to the material receiving limit gate L7, the rack L10 is meshed with the gear L9 for transmission, the gear L9 is installed on the output shaft of the motor L8, and the gear and rack are used to cooperate with the transmission to make the material receiving limit gate L7 able to lift and lower the material receiving limit gate L7 multiple times at any distance, and the lifting effect is good.

[0114] The material receiving quantitative conveying platform L is pushed to the feeding port of the layer-by-layer ascending packing device by the unloading pushing device L13, and the unloading pushing drive pushes the descending products to the layer-by-layer ascending packing device.

[0115] The quantitative conveying device for layered materials is installed on the quantitative conveying bracket M1 and drives the conveying platform M7 to rise and fall. The quantitative conveying device for layered materials includes a motor M2, a lifting support seat M3, a slider, a gear, a rack M4, a guide rail M5 and a lifting connecting plate M6. The motor M2 is installed on the outer side of the lifting support seat M3. The side of the lifting support seat M3 is fixed with a slider. The slider is slidably provided with a guide rail M5. The guide rail M5 is fixedly connected to the rack M4. The rack M4 is meshed with the gear installed on the rotating shaft of the motor M2 for transmission. The lifting support seat M3 is installed with a sliding sleeve. The sliding sleeve is slidably provided with a sliding rod. The upper end of the sliding rod, the upper end of the rack M4 and the upper end of the guide rail are all fixedly connected to the bottom of the translation push frame. The lower end of the sliding rod, the lower end of the rack M4 and the lower end of the guide rail are all fixedly connected to the lifting connecting plate M6. The meshing transmission of the rack M4 and the gear can be used to lift and lower for multiple times and any distance, and the meshing transmission effect of the teeth is more stable and has stronger load-bearing capacity.

[0116] The pushing device includes a translation pushing support structure M11, a translation pushing drive device M5, a translation lifting support platform M13, a lifting drive source M14, a lifting connection structure M15, a push plate M16, a cylinder fixing seat M17, a latch lifting cylinder M18, a latch connecting plate M19 and a latch M20. The translation lifting support platform M13 is slidably arranged on the upper part of the translation pushing support structure M11 through a guide rail and a slider and is driven to translate by the translation pushing drive device M5. The lifting drive source M14 is installed on the translation lifting support The platform M13 drives the lifting connection structure M15 to rise and fall. The front lower part of the lifting connection structure M15 is fixedly connected to the push plate M16. The back of the lifting connection structure M15 is fixed with a cylinder fixing seat M17. The latch lifting cylinder M18 is installed on the cylinder fixing seat M17 and independently drives the latch connection plate M19 to rise and fall. The latch M20 is fixed to the bottom of the latch connection plate M19. The latch M20 can be inserted into the latch hole M8-1 of the receiving tray M8 to make the receiving tray M8 move simultaneously with the push plate M16. The receiving tray M8 is slidably arranged on the conveying platform M7. At the same time, the push plate M16 of this embodiment can be moved to the rear of the receiving tray by the translation push support structure M11 to push the products on the receiving tray M8 forward a certain distance so that the products on the receiving tray M8 can move out of the position of the latch hole M8-1 on the receiving tray M8. In this way, the latch M20 can be smoothly inserted into the latch hole M8-1, and there is no need to add a lifting and pushing device that specifically pushes the products a short distance without affecting the normal pushing of the materials. The structure is reasonable, the operation is simple and fast, and the work efficiency is effectively improved. In this embodiment, the discharge gate lifting drive device M3 is located at the front upper part of the lifting and pushing support structure. The discharge gate lifting drive device M3 drives the discharge gate M2 to rise or fall, and the gate plate is lifted and lowered to limit the movement of the product during the non-pushing process to prevent the product from falling or scattering.

[0117] The multi-specification material receiving, conveying and packing device can be a simple rack for placing cartons, or can adopt the packing equipment in the prior art. However, in order to realize the full automation of the unit, the multi-specification material receiving, conveying and packing device of this embodiment is set as a multi-specification material receiving, packing and conveying device independently developed by the applicant. Specifically, the multi-specification material receiving, packing and conveying device of this embodiment is provided with a diaphragm ring N1-3, a material receiving translation and rotation drive unit N3, a lifting drive device N4, a carton placement unit N1 and a diaphragm ring removal unit N2. The upper frame of the diaphragm ring N1-3 is provided with a magnetic suction part N1-31 that can be attracted by a magnetic material. The material of the ring N1-3 of the embodiment can be iron. Initially, the film bag is put into the carton N5, and the carton N5 is placed in the carton placement unit N1. The lifting drive device N4 drives the carton placement unit N1 to drive the carton N5 and the diaphragm ring N1-3 to rise and align with the diaphragm ring removal unit N2 for detection. The two sets of telescopic drive devices of the diaphragm ring removal unit N2 make the removal electromagnet N2-1 and the magnetic suction part N1-31 of the diaphragm ring N1-3 accurately aligned. After the alignment check is completed, the lifting drive device N4 drives the carton N5 and the diaphragm ring N1-3 to move downward and horizontally to the bottom of the box mouth limit mechanism N3-1 of the material receiving translation and rotation drive unit N3. The lifting drive device N4 makes the carton N5 and the diaphragm ring N1-3 rise, and the carton N5 is clamped in the box mouth limit mechanism N3-1. The material receiving translation and rotation drive unit N3 makes the carton N5 flip the opening toward the layer material receiving and packing device M for receiving the material. The prior art has a very difficult problem to solve in bagging and boxing, that is, after the film bag is put into the carton, if the machine equipment is used to automatically load the product, the film bag is easily deviated, shifted, dropped or slipped into the bottom of the box. Therefore, there is often a dilemma in the prior art, either to automatically box the product without putting a large film bag on the product, which results in that the material can only be taken out of the carton in a scattered manner, and it is easy to contaminate and dirty the product, which does not meet the hygiene requirements; or to put on the film bag first and then put the products in one by one manually, but the work efficiency is low and the products are not neatly arranged (affected by various unstable factors of the workers). The present invention uses a diaphragm ring N1-3 to fix the film bag, which can effectively prevent the film bag from wrinkling, shifting and sliding. At the same time, it cooperates with other equipment to realize the functions of automatic boxing and removal of the diaphragm ring N1-3 after bagging, ensuring product hygiene, neat product boxing and high work efficiency.The carton placement unit is provided with a carton limit frame N1-1 that can carry cartons and a clutch support side panel N1-14. A guide rail N1-17 is provided on the side of the clutch support side panel N1-14. A slider N1-18 is slidably provided on the guide rail N1-17. The slider N1-18 is fixedly connected with a latch connection seat N1-19. The latch connection seat N1-19 is provided with a latch N1-20. The latch connection seat N1-19 can be fixedly connected to the aluminum profile by screws. According to actual needs, the latch connection seat N1-19 can be locked in different positions of the aluminum profile. In actual application, the position and quantity of the latch N1-20 and the latch connection seat N1-19 can be adjusted according to specific circumstances. However, no matter how the position and quantity are adjusted, this technical solution belongs to the scope of protection required by the present invention. Corresponding to the latch N1-20, the back plate of the rotating seat N3-5 of the material receiving translation and rotation driving unit N3 is fixed with a latch hole seat N3-2, and the latch hole seat N3-2 is provided with a latch hole. The latch N1-20 and the latch hole of the latch hole seat N3-2 can be assembled and plugged in correspondence. When the lifting drive device N4 drives the carton placement unit N1 to rise toward the box opening limit mechanism N3-1, the latch N1-20 can be inserted into the latch hole seat N3-2 corresponding to the back plate of the rotating seat N3-5 to play a role in reinforcing the connection. In order to further strengthen the firmness of the connection, the back plate of the rotating seat N3-5 of this embodiment can also be provided with an electromagnet for adsorbing the clutch support side plate N1-14 to adsorb the column diaphragm ring N1-3 and the carton N5. The diaphragm ring N1-3 is provided with a part that can be adsorbed by the electromagnet, and can also be made entirely of iron, or the main body can be made of stainless steel and the part that needs to be adsorbed is made of iron.

[0118] In order to realize the flipping of the carton, the lower part of the rotating seat N3-5 of the material receiving translation and rotation drive unit N3 of this embodiment is fixed with a rotating shaft N3-8, and the rotating shaft N3-8 is rotatably mounted on the bearing seat N3-9. The bearing seat N3-9 is fixed to the translation and rotation connecting seat N3-10, and the upper part of the rotating seat N3-5 is hinged to one end of the rotating connecting rod N3-11, and the other end of the rotating connecting rod N3-11 is pushed and pulled by the cylinder N3-12. The box mouth limiting mechanism N3-1 includes a box mouth gate support frame N3-2, a gate N3-3 and a gate driving device N3-4. The box mouth gate support frame N3-1 is installed on the rotating seat N3-5 of the material receiving translation and rotation driving unit N3. The four corners of the box mouth gate support frame N3-1 are all provided with a taper limit block N3-6. The gate driving device N3-4 is installed on the side of the box mouth gate support frame N3-1 and drives the gate N3-3 to move through the connecting plate N3-13. The box mouth of the carton N5 is stuck in the box mouth limiting mechanism N3-1 and rotates with the box mouth limiting mechanism N3-1. After rotation, it docks with the discharge port of the layer receiving conveyor device. The gate N3-3 gradually rises under the action of the gate driving device N3-4 to prevent the products transported into the carton N5 by the layer receiving conveyor device from falling out.

[0119] In this embodiment, the lifting drive device N4 is composed of a mechanism consisting of a motor, a transmission assembly, a gear and a rack 4-12. The rack is connected to the clutch lifting seat, the gear is meshed with the rack, and the gear is driven to rotate by the motor through the transmission assembly.

[0120] In this embodiment, the diaphragm ring removal unit includes a removal support frame N2-4, an adjustable stroke cylinder N2-3, a removal lifting structure N2-2 and an electromagnet N2-1. The adjustable stroke cylinder N2-3 is installed on the removal support frame N2-4 and drives the removal lifting structure N2-2 to move up and down. The removal lifting structure N2-2 is provided with an electromagnet N2-1 that can adsorb the diaphragm ring, wherein the frame of the removal lifting structure N2-2 is composed of aluminum profiles, and the electromagnet N2-1 can be installed at any position of the aluminum profile through a connector, and the position of the electromagnet N2-1 on the aluminum profile can be adjusted at any time as needed. Among them, when it is necessary to change the carton specifications, the clutch carton placement unit automatically runs to adjust the limit block corresponding to the size specifications of the box mouth limit mechanism, and then runs to the diaphragm ring removal unit to adjust the electromagnet, and the verification is completed and the above-mentioned action can be operated. Example 3

[0121] The main technical scheme of this embodiment is basically the same as that of Embodiment 1. The features not explained in this embodiment adopt the explanation in Embodiment 1 and will not be described again. The difference between this embodiment and Embodiment 1 is that the lower lifting drive device includes an upper rotating support seat 125-3, a lower rotating support seat 3-1, an upper lifting motion crank 5-1, a lower lifting motion crank 3-3, a positioning lifting shaft, a vertical lifting limit sliding member 10, a lever pressing and pulling lifting crank 2, a forward and reverse rotating driving crank 1-4, a forward and reverse rotating driving crank 1-4, a positioning rotating sliding lever crank 4, a positioning lifting shaft 9 and a push-pull driving mechanism, and the push-pull driving mechanism is a servo motor 1-1, and the servo motor 1-1 is equipped with a reducer 1-2, and the forward and reverse rotating driving crank 1-4 is fastened to the driving shaft 1-3 of the reducer 1-2.

[0122] In this embodiment, the lower end of the lower lifting motion crank 3-3 is relatively rotatably connected to the lower rotating support seat 3-1 through a hinge shaft, the upper end of the lower lifting motion crank 3-3 is relatively rotatably connected to the positioning rotating sliding lever crank 4 through a hinge shaft, and the upper end of the positioning rotating sliding lever crank 4 is relatively rotatably connected to the lower end of the upper rotating support seat 125-3 through a hinge shaft. The lower tail end of the positioning rotating sliding lever crank 4 is relatively rotatably connected to one end of the lever pressing and pulling lifting crank 2 through an axis; the other end of the lever pressing and pulling lifting crank 2 is relatively rotatably connected to the forward and reverse rotating driving crank 1-4, and the forward and reverse rotating driving crank 1-4 is driven to rotate by the push-pull driving mechanism. The hinge shaft 8 between the upper lifting motion crank 5-1 and the positioning rotating sliding lever crank 4 passes through the upper connecting end of the positioning rotating sliding lever crank 4 and the upper lifting motion crank 5-1 at the same time, so that the upper connecting end of the lifting arm 4-1 of the positioning rotating sliding lever crank 4 is relatively rotatably connected to the upper lifting motion crank 5-1, and at the same time, one end of the upper lifting motion crank 5-1 is relatively rotatably connected to the hinge shaft 5-2, and the upper connecting end of the lifting arm 4-1 of the positioning rotating sliding lever crank 4 is relatively rotatably connected to the other end of the upper lifting motion crank 5-1, using the lever movement principle similar to the human skeletal system, during the swinging process of the positioning rotating sliding lever crank 4, the upper lifting motion crank 5-1 rotates vertically or flips and folds down accordingly to achieve linkage.

[0123] Among them, the hinge shaft 7 between the upper end of the lower lifting motion crank and the positioning rotating sliding lever crank passes through the middle turning point 4-2 of the positioning rotating sliding lever crank 4 and the lower supporting connecting rod at the same time, so that the middle turning point 4-2 of the positioning rotating sliding lever crank 4 can be rotatably installed on the other end of the lower lifting motion crank 3-3 as a lever fulcrum, and the object is driven up by the lever principle, which is labor-saving and convenient. In order to obtain the best lifting and driving effect, the positioning rotating sliding lever crank 4 of this embodiment is divided into two parts, specifically a lifting arm 4-1 and a power arm 4-3. The angle between the lifting arm 4-1 and the power arm 4-3 is an obtuse angle and the power arm 4-3 is connected to the lever to press and pull the lifting crank 2. The middle turning point 4-2 of the positioning rotating sliding lever crank 4 serves as a fulcrum between the power arm 4-3 and the lifting arm 4-1. In order to achieve a large lifting and lowering, the length of the lifting arm 4-1 is greater than the length of the power arm 4-3. The positioning rotating sliding lever crank 4 of the present invention is set to be similar to an L-shaped shape, and the middle turning point 4-2 is used as a fulcrum to lift the upper rotating component by lever principle. The lifting range is mainly affected by the length of the lifting arm 4-1. The lifting arm 4-1 of the present invention uses the middle turning point 4-2 as a fulcrum and only needs a small rotation angle to rotate to vertical or rotate and fold. Because the required rotation angle is small, it is little affected by the bending degree of the lever pressing and pulling the lifting crank 2, and the lifting arm 4-1 can achieve a large lifting. In addition, the prior art uses torque to drive lifting. Because the torque is limited, the load-bearing capacity of the mechanism is limited and cannot drive heavy objects or equipment to lift. The present invention adopts the lever principle. Even if the mechanism has a heavy load-bearing capacity, it can be easily lifted or lowered, and the load-bearing effect is better. In addition, the present invention is also provided with a vertical lifting limit sliding member to enable the positioning lifting shaft to move in the vertical direction to achieve lever linkage lifting. According to mechanical testing, if there is no limit of the vertical lifting limit sliding member, the positioning lifting shaft is forced to run in the fixed lifting chute, and it is difficult to achieve the effect of large-tonnage rapid lifting. Among them, this embodiment is also provided with a vertical lifting limit sliding member 10 and a vertical lifting limit fixing member 11 that cooperate with the positioning rotating sliding lever crank 4. Specifically, the positioning lifting shaft 9 passes through the positioning rotating sliding lever crank 4, and a bearing is installed between the connection between the positioning lifting shaft 9 and the positioning rotating sliding lever crank 4. The two ends of the positioning lifting shaft 9 are fixedly connected with vertical lifting limit sliding members, and each vertical lifting limit sliding member is slidably arranged on the vertical lifting limit fixing member 11 of the support seat 12 on one side; the vertical lifting limit sliding member 10 and the vertical lifting limit fixing member 11 can limit the positioning lifting shaft 9 to always move in the vertical direction. Such a setting can provide sufficient support for the positioning rotating sliding lever crank 4 when rotating to lift the object (such as the lower mold of the cup making machine). If there is no vertical lifting limit sliding member 10 and the vertical lifting limit fixing member 11 to work together, the positioning rotating sliding lever crank 4 alone cannot realize the lifting drive of a large tonnage object in practice.When ascending, the vertical lifting positioning slide and the vertical lifting slide 11, the link shaft between the upper rotating support base and the lower rotating support base, and the positioning lifting shaft 9 can form a three-point linear limited vertical lifting structure. It should be noted that the vertical lifting limiting slide 11 can also be set as an integrated structure. In this case, the stationary support seat 12 is equipped with a fixed sliding set 12-1, and the vertical lifting limiting slide 10 is slidably arranged on the sliding set 12-1.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the claims. A person skilled in the art should understand and modify or replace the technical solutions of the present invention with equivalents by referring to the preferred embodiments, but the technical solutions of the present invention are substantially the same and within the scope of protection.

Claims

1. A plastic container thermoforming machine, comprising an upper mold mechanism, a lower mold mechanism and an electric furnace, wherein the upper mold mechanism is provided with an upper mold, characterized in that: The lower mold mechanism is provided with two lower molds, a lower lifting mold platform, a lower lifting drive device and a translation drive device. The two lower molds can be slidably installed on the lower lifting mold platform. The lower lifting mold platform can be driven up or down by the lower lifting drive device to make the lower mold close to the upper mold or separate from the upper mold; each lower mold includes a molding cavity and a demoulding unit; Each lower die is respectively provided with a balancing weight box, which can slide on the placement seat and the lower lifting die table; a translation sliding base is provided at the bottom of each lower die, and the two translation sliding bases are connected through a traction bearing seat; A latch is provided on one side of the bottom of the lower die close to the balancing weight box, a connecting plate is connected to one side of the balancing weight box close to the lower die, a latch hole is provided at the front end of the connecting plate, and the latch of the lower die can be inserted into the latch hole; When the lower lifting die table descends into place, the pins of the two lower dies are inserted into the pin holes of the connecting plates of the corresponding balancing weight boxes to form a balancing linkage structure that can pull each other and alternately exchange work positions. The lower die that has completed forming pushes the corresponding balancing weight box out of the lower lifting die table and slides the balancing weight box to the placement seat for standby, while the balancing weight box on the other side is pulled from the placement seat to the lifting die table by the bottom pin of the corresponding lower die with the socket as the fulcrum. The lower die located at the receiving and unloading standby and conveying station is translated to the forming standby station, and the lower die at the forming standby station is switched to the receiving and unloading standby and conveying station.

2. The plastic container thermoforming machine according to claim 1, characterized in that: A sliding block is fixed at the bottom of the translation sliding base, the sliding block is slidably arranged on a track, the track is fixed on the lower lifting mold platform, and a clutch traction pin is arranged at the bottom of the tail end of the translation sliding base.

3. The plastic container thermoforming machine according to claim 1, characterized in that: When the lower lifting mold platform rises to its position, the upper mold and the lower mold are combined to form the product, and the other lower mold simultaneously completes the label removal. During the descending process of the lower lifting mold platform, the demoulding cylinder of the demoulding unit rises to make the product separate from the mold cavity and hang it at the corner, and then the demoulding unit is reset; when the lower lifting mold platform descends to its position, the traction clutch pin under the translational sliding base of the lower mold outside the forming station is inserted into the pin hole of the balancing weight box to form a translational linkage structure in which the two lower molds are each pulled by the balancing weight box on the outside.

4. The plastic container thermoforming machine according to claim 1, characterized in that: The upper mold mechanism is installed on the connecting support frame, the upper end of the connecting support frame is fixed with an upper support platform, the upper end tail of the upper lifting gantry column is fixed to the upper support platform, and the lower end is fixed to the beams on both sides of the connecting support frame located outside the sheet conveying chain, the upper lifting mold platform is slidably arranged on the upper lifting gantry column, and the upper mold is installed on the upper lifting mold platform; The lower lifting mold platform is fixedly connected to the lower lifting gantry column, the lower lifting gantry column is slidably arranged on the sliding sleeve seat, and the sliding sleeve seat is fixed to the supporting base; The bottom of the connecting support frame is fixed to the sliding sleeve seat and the supporting base to form an upper and lower lifting structure connected as a whole.

5. The plastic container thermoforming machine according to claim 1, characterized in that: The bottom of the lower mold is fixedly connected with an attracted iron near the balancing weight box, and the connecting plate of the balancing weight box is provided with an electromagnet.

6. The plastic container thermoforming machine according to claim 1, characterized in that: The placing seat is provided with a rotatable balancing auxiliary wheel. When the balancing weight box is lowered into place, the connecting plate at the bottom of the balancing weight box can be slidably placed on the balancing auxiliary wheel.

7. The plastic container thermoforming machine according to claim 1, characterized in that: The demoulding unit is provided with a demoulding plate and a demoulding lifting plate. The demoulding plate is provided with a demoulding device according to the mold cavity of the molding mold cavity. The demoulding lifting plate and the demoulding plate are connected by a connecting rod. During demoulding, the telescopic rod of the demoulding cylinder extends upward to push the demoulding lifting plate upward, and the demoulding lifting plate drives the demoulding plate to move upward, and the demoulding device of the demoulding plate drives the opening edge of the molded product to move upward for demoulding.

8. The plastic container thermoforming machine according to claim 7, characterized in that: A demoulding clutch slide bar is provided at the bottom of the demoulding lifting plate, and the demoulding clutch slide bar passes through the bottom of the lower mold and the translation sliding base; The telescopic rod of the demoulding cylinder is fixedly connected with a demoulding top piece, and the demoulding top piece is provided with a push rod upward. When demoulding, the push rod is upwardly aligned with the demoulding clutch sliding rod of the lower mold demoulding unit.

9. The plastic container thermoforming machine according to claim 1, characterized in that: The translation drive device consists of a motor, a transmission wheel and a transmission belt. The transmission wheel can be rotatably installed on the lower lifting mold platform. The transmission belt is installed on the transmission wheel and connected to one of the lower molds. The motor drives the transmission wheel and the transmission belt to rotate; the transmission belt directly or indirectly drives the two lower molds to translate simultaneously.

10. The plastic container thermoforming machine according to claim 1, characterized in that: It includes an upper rotating support seat, a lower rotating support seat, an upper lifting crank, a lower lifting crank, a positioning lifting shaft, a vertical lifting limit sliding member, a lever pressing and pulling lifting crank, a positioning rotating sliding lever crank, a positioning lifting shaft and a push-pull driving mechanism. The lower rotating support seat is fixed to the stationary base, and the lower rotating support seat and the lower end of the lower lifting crank are connected to each other with a hinge axis, and the upper end of the lower lifting crank is connected to the positioning rotating sliding lever crank through the hinge axis, and the upper end of the positioning rotating sliding lever crank and the lower end of the upper lifting crank are hinged through the hinge axis, and the upper end of the upper lifting crank and the lower end of the upper rotating support seat are connected to each other with a hinge axis. The upper rotating support seat is fixed to the bottom of the lifted object, the positioning lifting shaft is installed on the positioning rotating sliding lever crank, and the positioning lifting shaft is installed with a vertical lifting limit sliding member, and the vertical lifting limit sliding member is slidably arranged on the stationary support seat, forming a vertical lifting structure in which the hinge axis connecting the lower lifting crank and the lower rotating support seat, the positioning lifting shaft, and the hinge axis connecting the upper lifting movement and the upper rotating support seat are always in a straight line. The lower tail end of the positioning rotating sliding lever crank is relatively rotatably connected to one end of the lever pressing, pulling and lifting crank through a shaft; the other end of the lever pressing, pulling and lifting crank is driven to move by a push-pull driving mechanism.

11. One-mold three-action in-mold labeling conveying and packing production line, characterized by: The invention comprises a plastic container thermoforming machine as claimed in any one of claims 1 to 10 and two groups of label conveying groups, wherein the two lower molds of the plastic container thermoforming machine move left and right to work alternately, and each lower mold corresponds to one group of label conveying groups; Each label conveying group includes an in-mold labeling material taking and conveying robot, a label transfer conveying device, a label conveying robot and a label bin; During each in-mold labeling operation, the actions of the lower mold and the in-mold labeling robot include: The first action: when the lower mold of the forming station completes the forming of the product, the other lower mold at the unloading station also completes the label removal and descends synchronously; the in-mold labeling robot located on one side of the counterweight box translates to the label removal station while the two lower molds translate and replace the stations, and completes the label connection while the lower lifting mold platform rises; when the label transfer conveyor synchronously rises to complete the label transmission, the lower lifting mold platform connects to the lower mold and descends together, and arrives at the label rising and unloading station synchronously before the next in-mold labeling robot arrives at the material connection station; after the label transfer conveyor and the label transfer conveyor arrive at their respective unloading stations, the label transfer robot continuously completes the descent to transfer the label, rises after unloading, translates to the top of the label bin, descends to take the label, rises, and translates to the material removal station before the label transfer conveyor arrives at the material connection station to wait; The second action: while the two lower molds are moving horizontally to exchange positions, the in-mold labeling robot that has completed label reception is synchronously moved horizontally to the label transfer station to wait; the other in-mold labeling robot that has completed label transfer is synchronously moved horizontally to the label removal station, and the label transfer unit on the same side of the in-mold labeling robot operates in coordination according to the programmed preset; The third action: when a lower mold rises and closes with the upper mold to prepare the product, the in-mold labeling robot cooperates with the other lower mold and is located in the standby position to stick the label on the inner wall of the mold cavity. At the same time, the two sets of label conveying units operate in coordination according to the preset programming.

12. The one-mold-three-action in-mold labeling conveying and packing production line according to claim 11, characterized in that: It is also connected with a plastic container stacking, conveying and packing unit. After the sheet of the cup making machine is formed at the forming station, the sheet conveying chain track brings the corners and the finished product to the punching and shearing station for punching and shearing, and then conveys it to the finished product receiving and conveying device, and the remaining corners are conveyed to the winding station. The finished product receiving and conveying device is provided with an ascending and unloading device and a receiving and unloading conveying robot. The finished product receiving and conveying device conveys the finished product to the receiving and stacking conveying device, the transfer conveying robot, the single-row whole-strip splicing and lateral conveying device, the limited receiving and flipping transverse quantitative conveying device, the receiving and quantitative conveying platform, the layered receiving and quantitative conveying device and the multi-specification conveying and packing device complete the whole process of conveying and packing. The location and operation characteristics of the plastic container stacking, conveying and packing unit are as follows: The receiving tray is located outside the finished product receiving and conveying device. After the finished product receiving and conveying device completes the stacking, the product is lifted up by the rising unloading device and conveyed to the receiving and unloading conveying robot. The receiving and unloading conveying robot runs to the receiving tray located outside the finished product stacking and storage device to vertically unload. After the receiving tray completes the receiving, it moves horizontally to the sampling station or the unloading station. The transfer conveying robot arranges the receiving materials and moves back and forth between the receiving station and the single-row whole-stack lateral conveying device to receive and unload. The single-row whole-stack lateral conveying device vertically stacks the materials. After completing the receiving, the product is pushed to the limited receiving and flipping horizontal quantitative conveying device. The limited receiving and flipping horizontal quantitative conveying device then conveys the product to the receiving and quantitative conveying platform. The receiving and quantitative conveying platform pushes the product to the receiving and unloading trays with limited positions on both sides of the layer receiving and quantitative conveying device. The layer receiving and quantitative conveying device sends the entire tray of products on the receiving and unloading trays into the carton. This action is repeated until the box is full.

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