Chain transmission device with lock catch structure and plastic hollow plate forming system

Abstract

The utility model provides a chain transmission device with a lock catch structure, which comprises a plate conveying frame body, a chain transmission structure positioned in the plate conveying frame body and a plurality of lock catch plates arranged between chain belts of the chain transmission structure, and the lock catch plates move from one station to the next station along with the movement of the chain belts; duckbilled clamps are arranged on the locking plates and used for locking the edges of the plates, and corresponding unlocking pieces are arranged below the starting position and the ending position of the chain transmission structure and used for achieving opening and closing of the duckbilled clamps. A plastic hollow plate forming system is provided with six stations in the transmission direction, the six stations are the feeding station, the material guiding station, the preheating station, the indentation station, the cutting station and the discharging station respectively, and a chain transmission device is adopted among the last four stations for conveying plates. The whole chain transmission device is simple in structure, flexible in arrangement, smooth in operation and convenient to maintain; and due to the added material guide position, the processing rhythm is faster, and the production efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the forming equipment technical field of plastic hollow plate box body, especially a chain transmission device with a lock catch structure and a plastic hollow plate forming system. BACKGROUND

[0002] The production steps of the plastic hollow plate box body are generally injection molding into a plate, plate cutting, mold pressing and edge sealing, and need to use corresponding equipment such as an injection molding machine, a cutting machine, a hydraulic machine and a corresponding template, wherein the template cooperates with the hydraulic machine to form the required indentation on the plate and perform edge sealing and cutting.

[0003] Our company has continuously researched and improved the production process of the plastic hollow plate box body, improved the traditional wooden template into a hot-pressed aluminum template, made the template have high heat efficiency and uniform heat conduction, and designed a plastic turnover box full-automatic hot melting edge sealing forming machine, placed the hydraulic machine and the corresponding template in the middle of the machine, set the two sides as plate placing positions, and improved the box body forming speed by alternately conveying the plate.

[0004] After that, with the advantages of the hollow plate turnover box in logistics efficiency, protection of goods quality, cost reduction, environmental protection and energy saving, the demand for the hollow plate box in the market is increasing, and the requirement for the box body forming efficiency is also increasing, so a full-automatic hydraulic hot melting edge sealing system is designed, the hot-pressed aluminum template is disassembled into an indentation die and a cutting die, the plate is conveyed from the preheating position, the indentation position and the cutting position to the unloading position in sequence through the transmission device, and the box body preparation efficiency is effectively improved.

[0005] In the system, the transmission device has complex structure, large space occupation and high maintenance cost, and has the problems of insufficient flexibility, high energy consumption and high failure rate, therefore, the existing technology needs to be improved. UTILITY MODEL CONTENTS

[0006] The utility model provides a chain transmission device with a lock catch structure and a plastic hollow plate forming system to solve the above problems.

[0007] One of the technical schemes of the utility model is to provide a chain transmission device with a lock catch structure, which comprises: a plate conveying frame body, a chain transmission structure in the plate conveying frame body, a plurality of lock catch plates arranged between the chain belts of the chain transmission structure, the distance between adjacent lock catch plates is equal to the distance between adjacent workstations of the conveying frame, and the lock catch plates move from one workstation to the next workstation with the chain belts.

[0008] The lock catch plate is provided with a plurality of duckbill clamps, the duckbill clamp comprises an upper piece and a lower piece which are tightly fitted at the front end, and the upper piece is provided below with an unlocking protrusion penetrating through the lower piece, when the unlocking protrusion is lifted up, the front end of the upper piece and the lower piece is separated, the lock catch of the plate edge is realized by controlling the separation and combination of the upper piece and the lower piece, and the plate moves to the next station along with the lock catch plate;

[0009] The plate conveying frame body is further provided with two rotatable shafts below the starting position and the ending position of the chain transmission structure, the shafts are provided with a plurality of unlocking pieces corresponding to the duckbill clamps, when the shafts rotate to the corresponding positions, the unlocking pieces lift up the unlocking protrusions to separate the upper piece and the lower piece of the duckbill clamp, and the locking and releasing actions of the plate are realized.

[0010] Further, the plate conveying frame body is further provided with a guide rail for guiding the transmission direction of the chain belt.

[0011] Further, the lock catch plate is provided with mounting holes, and the upper piece and the lower piece of the duckbill clamp are fixed on the lock catch plate through bolts or pins.

[0012] Further, the unlocking protrusion is designed in a cylindrical shape and is easy to be lifted up.

[0013] Further, the unlocking piece is a top plate, one end of the top plate is rotatably arranged on the shaft, and the other end is provided with an upward top head, after the top plate rotates by a certain angle, the top head can lift up the unlocking protrusion of the duckbill clamp to realize the unlocking action.

[0014] Further, a cam rod is arranged obliquely below the shaft, a plurality of cams corresponding to the top plate are arranged on the cam rod, and a contact wheel is rotatably arranged below the top plate, when the cam rod rotates, the cams push the contact wheel upward, and the top head lifts up the unlocking protrusion.

[0015] Further, a cam motor is arranged below the cam rod, and the cam motor drives the cam rod to rotate through a belt transmission.

[0016] The utility model adopts one technical scheme, provides plastic hollow plate forming system, six positions are set along transmission direction, it is feeding position, guide material position, preheating position, indentation position, cutting position and unloading position respectively;

[0017] Plate lifting platforms are arranged at the feeding position and the unloading position, are used for adjusting the height of the plate, and adapt to the plate taking or plate placing actions;

[0018] A plate taking device is arranged above the plate lifting platform of the feeding position, and is used for sending the uppermost plate to the guide material position;

[0019] The guide material position is provided with a belt transmission device, corresponding compression rollers are arranged above each transmission belt of the belt transmission device, and the plate is sent to the preheating position through the transmission belt and the corresponding compression roller after entering the guide material position.

[0020] The four stations of preheating station, indentation station, cutting station and blanking station adopt the chain transmission device with the locking structure to convey the plate material, the plate material is locked by the locking plate when entering the starting position of the preheating station, and is moved with the locking plate until the plate material is unlocked by the locking plate when reaching the ending position of the blanking station.

[0021] The preheating station, indentation station and cutting station are respectively provided with a baking device, indentation sealing device and edge cutting device to heat, indentation seal and cut the plate material.

[0022] Further, the indentation sealing device comprises a first hydraulic machine, and an indentation sealing die is arranged below the pressing plate of the first hydraulic machine; the edge cutting device comprises a second hydraulic machine, and an upper edge cutting die is arranged below the pressing plate of the second hydraulic machine.

[0023] Further, locking devices are arranged on both sides of the pressing plate to fix the corresponding die below the pressing plate, and different specifications of the plastic hollow plate can be prepared by replacing the die.

[0024] The chain transmission device with the locking structure and the plastic hollow plate forming system have the following beneficial effects:

[0025] 1. The locking structure is arranged between the chain belts of the chain transmission structure to lock the plate material to be conveyed, the corresponding unlocking structure is designed to cooperate with the locking structure to realize the opening and closing of the duckbill clamp, and the whole chain transmission device is simple in structure, flexible in setting, smooth in operation and convenient in maintenance.

[0026] 2. In the plastic hollow plate forming system, the lifting platform is used to place the initial plate material and the prepared plate material, and a guide position is arranged to convey the plate material to be processed, so that the processing rhythm is faster and the production efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the plastic hollow plate forming system in the first embodiment of the utility model;

[0028] Figure 2 is a schematic diagram of the plate taking device in the first embodiment of the utility model;

[0029] Figure 3 is a schematic diagram of the belt transmission device in the first embodiment of the utility model;

[0030] Figure 4 is a schematic diagram of the locking structure and the cam unlocking in the first embodiment of the utility model;

[0031] The reference signs of the components in the drawings are as follows: 1, plate lifting platform, 2, plate taking device, 3, belt transmission device, 4, compression roller, 5, chain transmission device, 6, baking device, 7, indentation sealing device, 8, edge cutting device, 9, plate, 21, moving cylinder, 22, suction cup trolley, 23, lifting cylinder, 24, vacuum suction cup, 31, plate biting compression roller, 32, elastic compression roller, 51, chain transmission structure, 52, locking plate, 53, shaft rod, 54, cam rod, 55, cam motor, 521, duckbill clamp, 531, top plate, 532, top head, 533, contact wheel, 541, cam, a, feeding position, b, guiding position, c, preheating position, d, indentation position, e, cutting position, f, discharging position. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present application are described in detail below with reference to the drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly defined.

[0033] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "horizontal", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and cannot indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] Please refer to Figures 1 to 4 The first embodiment of the present application provides a chain transmission device 5 with a locking structure, comprising: a plate conveying frame body, a chain transmission structure 51 located in the plate conveying frame body, a plurality of locking plates 52 arranged between the chains of the chain transmission structure 51, the distance between adjacent locking plates 52 is equal to the distance between adjacent stations of the conveying frame, and the locking plates 52 move with the chains from one station to the next station.

[0035] A plurality of duckbill clamps 521 are arranged on the locking plates 52, the duckbill clamps 521 include a front end tightly fitted upper piece and a lower piece, an unlocking protrusion is arranged below the upper piece and penetrates through the lower piece, when the unlocking protrusion is lifted, the front end of the upper piece and the lower piece are separated, the locking of the edge of the plate 9 is realized by controlling the separation and combination of the upper and lower pieces, and the plate moves with the locking plates 52 to the next station.

[0036] The plate conveying frame body is further provided with two rotatable shafts 53, which are respectively located below the starting position and the ending position of the chain transmission structure 51, and a plurality of unlocking members corresponding to the duckbill clamps 521 are arranged on the shafts 53. When the shafts 53 are rotated to the corresponding positions, the unlocking members lift the unlocking protrusions to separate the upper and lower pieces of the duckbill clamps 521, so as to realize the locking and releasing actions of the plates.

[0037] The chain transmission structure 51 adopts a roller chain transmission, and the movement of each locking plate 52 is realized through the meshing between the chain and the sprocket.

[0038] The plate conveying frame body is further provided with a guide rail arranged on the side of the chain belt, so as to ensure that the chain belt moves linearly during transmission.

[0039] The sprocket is driven by a motor, and a speed reducer is usually arranged to reduce the rotating speed to a suitable range.

[0040] A tensioning device is further arranged to adjust the tightness of the chain belt and prevent the chain belt from relaxing or breaking during transmission.

[0041] The duckbill clamps 521 on the locking plates 52 are designed to be detachable, so that the duckbill clamps 521 are easy to maintain.

[0042] The locking plates 52 are provided with mounting holes, and the upper piece and the lower piece of the duckbill clamps 521 are fixed on the locking plates 52 by bolts, so that the front ends of the duckbill clamps 521 are tightly attached to each other, and the locking action is stable.

[0043] The unlocking protrusions are designed in a cylindrical shape, which is easy to be lifted. By changing the range of the unlocking protrusions being lifted, the opening size of the duckbill clamps 521 can be adjusted to adapt to plates of different thicknesses.

[0044] The positions of locking the plates and releasing the plates are the starting position and the ending position of the chain transmission structure 51, and unlocking mechanisms are arranged at the two positions to lift the unlocking protrusions and realize the opening and closing of the duckbill clamps. Therefore, two types of unlocking members are designed.

[0045] The first type is that the unlocking member is a top plate 531 arranged on the shaft 53 corresponding to the starting position. One end of the top plate 531 is rotatably arranged on the shaft 53, and the other end is provided with an upward top head 532. After the top plate 531 is rotated by a certain angle, the top head 532 can lift the unlocking protrusion of the duckbill clamp 521 to realize the unlocking action.

[0046] A cam rod 54 is arranged obliquely below the shaft 53, and a plurality of cams 541 corresponding to the top plate 531 are arranged on the cam rod 54. A contact wheel 533 is rotatably arranged below the top plate 531. When the cam rod 54 rotates, the cam pushes the contact wheel 533 upward, so that the top plate 531 rotates, and the top head 532 lifts the corresponding unlocking protrusion.

[0047] A cam motor 55 is arranged below the cam lever 54, and drives the cam lever 54 to rotate through a belt drive;

[0048] Secondly, the number of the unlocking members on the shaft is matched with the number of the duckbill clamps on the locking plate, so that each duckbill clamp can be unlocked accurately.

[0049] The unlocking member is fixed on one end of the shaft, and the other end is provided with an upward top rod, and the end of the top rod is provided with a rotatable roller.

[0050] Secondly, the number of the unlocking members on the shaft is matched with the number of the duckbill clamps on the locking plate, so that each duckbill clamp can be unlocked accurately.

[0051] Specifically, on the cam lever 54 corresponding to the starting position, the time and force of the unlocking action can be controlled by adjusting the profile curve of the cam and the rotation speed of the cam lever.

[0052] Specifically, on the shaft corresponding to the termination position, the end of the unlocking member connected with the shaft is provided with a waist hole, and a bolt passes through the waist hole to fix the unlocking member on the shaft.

[0053] Please refer to Figures 1 to 4 The first embodiment of the utility model further provides a plastic hollow plate forming system, six stations are arranged along the transmission direction, which are respectively a feeding station a, a guide station b, a preheating station c, an indentation station d, a cutting station e and a discharging station f.

[0054] Plate lifting platforms 1 are arranged at the feeding station and the discharging station, which are used for adjusting the height of the plate and adapting to the plate taking or placing action.

[0055] The plate lifting platform 1 at the feeding station is provided with a plate taking device 2 above, which is used for sending the uppermost plate to the guide station;

[0056] The guide station is provided with a belt transmission device 3, corresponding compression rollers 4 are arranged above each transmission belt of the belt transmission device 3, and the plate is sent to the preheating station through the transmission belt and the corresponding compression roller after entering the guide station;

[0057] The preheating station, the indentation station, the cutting station and the discharging station adopt the chain transmission device 5 with the locking buckle structure to convey the plate, the plate is locked by the locking plate 52 when entering the starting position of the preheating station, and the locking plate moves until the plate reaches the termination position of the discharging station, and then the locking plate is unlocked.

[0058] The preheating position, the indentation position and the cutting position are respectively provided with the baking device 6, the indentation sealing device 7 and the cutting device 8, and the plate is heated, indented and cut respectively.

[0059] The plate taking device 2 adopts a suction cup structure, adsorbs the uppermost plate and moves to the next station:

[0060] A suction cup trolley 22 horizontally movable is arranged, and is driven by a moving cylinder 21 located at the right side;

[0061] A group of lifting cylinders 23 are arranged on the suction cup trolley 22, the driving end of the lifting cylinder 23 is downwardly fixed with a suction cup frame, and a group of vacuum suction cups 24 are arranged below the suction cup frame and used for adsorbing the plate.

[0062] The population area of the belt transmission device 3 is further provided with a plate biting pressure roller 31 and an elastic pressure roller 32 to assist in conveying the plate:

[0063] A driving shaft is arranged in the plate conveying frame body, the two ends of the plate biting pressure roller 31 are fixed with the driving shaft through side connecting pieces, when the driving shaft rotates counterclockwise, the plate biting pressure roller 31 is lifted to make the plate enter the pressure roller area of the belt transmission device 3;

[0064] A pair of spring mounting seats are arranged in the plate conveying frame body, springs are fixed below the spring mounting seats, and the lower ends of the springs are fixed with the end portions of the elastic pressure roller 32, when the plate arrives, the elastic pressure roller 32 is adaptively lifted.

[0065] The baking device 6 includes a lamp holder with a plurality of heating lamp tubes and a baking platform arranged below the holder, the baking platform is driven by a platform cylinder and can be lifted to a working position, the lamp holder is driven by a holder cylinder and can be lowered to a working position, and the two are matched to preheat the arrived plate.

[0066] Specifically, the positions of the heating lamp tubes on the lamp holder are detachable and adjustable, corresponding to the preheating positions required by the indentation and cutting of the plate.

[0067] The indentation sealing device 7 includes a first hydraulic machine, and a indentation sealing die is arranged below the pressing plate of the first hydraulic machine, the cutting device 8 includes a second hydraulic machine, and an upper cutting die is arranged below the pressing plate of the second hydraulic machine, and locking devices are arranged on both sides of each pressing plate and used for fixing the corresponding die below the pressing plate, so that different specifications of plastic hollow plates can be prepared by replacing the die.

[0068] Specifically, each pressing plate and the corresponding die will be further reinforced by using bolts, and a plurality of reinforcement points are arranged at the peripheral positions to ensure the stability of the die position.

[0069] Specifically, the hydraulic platform of the first hydraulic machine and the second hydraulic machine is further provided with a pressure limiting stop for limiting the lowest position of the descending of the pressing plate, so as to avoid damaging the plate.

[0070] The working principle of the plastic hollow plate forming system is:

[0071] The plate materials are neatly stacked on the plate lifting platform, and the plate taking device takes the plate;

[0072] After the vacuum chuck adsorbs the surface of the plate, the lifting cylinder lifts the plate, and the moving cylinder pushes the vacuum chuck trolley to the left, so that the plate enters the belt transmission device;

[0073] Before the plate enters, the plate is clamped into the pressure roller to be lifted, so that the plate enters the pressure roller area of the belt transmission device, and under the action of the transmission belt of the belt transmission device and the pressure roller, the plate enters the starting position of the chain transmission structure;

[0074] There are a plurality of locking plates on the chain belt, and one of the locking plates reaches the starting position at the same time, and under the cooperation of the plurality of duckbill clamps and the corresponding unlocking pieces, the edge of the plate is locked;

[0075] The plate is taken to the working position of the baking device, the platform cylinder drives the platform to rise, the support cylinder drives the lamp support and the heating lamp group to descend, and the heating lamp heats, so that the plate is baked, and the plate is reset after baking;

[0076] The plate is taken to the working position of the indentation and edge sealing device, the first hydraulic machine acts, the indentation and edge sealing die presses the baking position on the plate, the indentation and edge sealing are completed, and the hydraulic machine is reset after pressure holding is completed;

[0077] The plate is taken to the working position of the edge cutting device, the second hydraulic machine acts, the upper edge cutting die cuts the plate, and the hydraulic machine is reset after the pressure is displayed in place;

[0078] The plate is taken to the discharging position, under the action of the top rod of the corresponding belt roller, each duckbill clamp is opened, the plate is unlocked, and the plate falls onto the platform collecting plate of the plate lifting platform.

[0079] In the production process, the plate lifting platform of the feeding position gradually rises with the plate taking action, and the plate lifting platform of the discharging position gradually descends with the falling of the plate.

[0080] The chain transmission device with a locking structure and the plastic hollow plate forming system have the following advantages:

[0081] 1. The locking structure is arranged between the chain belt of the chain transmission structure to lock the plate to be conveyed, the corresponding unlocking structure is designed to cooperate with the locking structure to realize the opening and closing of the duckbill clamp, so that the whole chain transmission device has simple structure, flexible setting, smooth operation and convenient maintenance;

[0082] 2. In the plastic hollow plate forming system, the feeding and discharging positions adopt lifting tables to place the initial plate and the prepared plate, a plate taking device is designed to be simple and reliable, and a guide position is added to convey the plate to be processed, so that the processing rhythm is faster and the production efficiency is higher.

[0083] The above is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A chain drive with a lock structure, characterized by The utility model relates to a plate conveying frame, which comprises a plate conveying frame body, a chain transmission structure in the plate conveying frame body, a plurality of locking plates arranged between the chain belts of the chain transmission structure, the spacing between adjacent locking plates being equal to the spacing between adjacent workstations of the conveying frame, and the locking plates moving with the chain belts from one workstation to the next. The locking plate is provided with a plurality of duckbill clamps, the duckbill clamp comprises a front end tightly fitted upper piece and lower piece, the upper piece is provided below with an unlocking protrusion penetrating through the lower piece, when the unlocking protrusion is lifted, the front end of the upper piece and the lower piece is separated, the locking of the edge of the plate is realized by controlling the separation and combination of the upper piece and the lower piece, and the plate moves with the locking plate to the next workstation. The plate conveying frame body is further provided with two rotatable shafts below the starting position and the terminal position of the chain transmission structure, the shaft is provided with a plurality of unlocking pieces corresponding to the duckbill clamps, when the shaft is rotated to the corresponding position, the unlocking piece lifts the unlocking protrusion to separate the upper piece and the lower piece of the duckbill clamp, and the locking and releasing actions of the plate are realized. The plate conveying frame body is further provided with a guide rail for guiding the transmission direction of the chain belt.

2. A chain drive with a lock structure according to claim 1, characterized in that The locking plate is provided with a mounting hole, and the upper piece and the lower piece of the duckbill clamp are fixed on the locking plate through bolts or pins.

3. A chain drive with a lock structure according to claim 1, characterized in that, The unlocking protrusion is designed in a cylindrical shape and is easy to be lifted.

4. A chain drive with a lock structure according to claim 1, characterized in that, The unlocking piece is a top plate, one end of the top plate is fixed on the shaft, the other end is provided with an upward top head, after the shaft is rotated by a certain angle, the top head can lift the unlocking protrusion of the duckbill clamp to realize the unlocking action.

5. A chain drive with a locking structure according to any one of claims 1-4, characterized in that The oblique lower side of the shaft is provided with a cam rod, the cam rod is provided with a plurality of cams corresponding to the top plate, the lower side of the top rod is rotatably provided with a contact wheel, when the cam rod is rotated, the cam pushes the contact wheel upward to make the top head lift the unlocking protrusion.

6. A chain drive with a lock structure according to claim 5, characterized in that The lower side of the cam rod is provided with a cam motor, the cam motor drives the rotation of the cam rod through a belt drive.

7. A chain drive according to claim 6, wherein Six workstations are arranged along the transmission direction, which are a feeding position, a guide position, a preheating position, an indentation position, a cutting position and a discharging position.

8. A plastic hollow board forming system characterized by, Plate lifting platforms are arranged at the feeding position and the discharging position to adjust the height of the plate and adapt to the plate taking or placing actions. A plate taking device is arranged above the plate lifting platform of the feeding position to send the uppermost plate to the guide position. The guide position is provided with a belt transmission device, corresponding pressure rollers are arranged above each transmission belt of the belt transmission device, and the plate is sent to the preheating position through the transmission belt and the corresponding pressure roller after entering the guide position. The preheating position, the indentation position, the cutting position and the discharging position adopt the chain transmission device with the locking structure as claimed in any one of claims 1-7 to convey the plate, the plate is locked by the locking plate that reaches when entering the starting position of the preheating position, and the plate moves with the locking plate until the locking plate is unlocked when the plate reaches the terminal position of the discharging position. The preheating position, the indentation position and the cutting position are respectively provided with baking devices, indentation edge sealing devices and edge cutting devices to heat, indent and cut the plate respectively. The indentation edge sealing device comprises a first hydraulic machine, and the pressure plate of the first hydraulic machine is provided below with an indentation edge sealing die; the edge cutting device comprises a second hydraulic machine, and the pressure plate of the second hydraulic machine is provided below with an upper edge cutting die.

9. The plastic hollow plate forming system according to claim 8, wherein, ​ 10. The plastic hollow plate forming system according to claim 9, wherein, The locking device is arranged on both sides of the pressing plate, and is used for fixing corresponding molds below the pressing plate, and different specifications of plastic hollow plates can be prepared by replacing the molds.

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