Mould circulating transmission device

Abstract

The utility model relates to a mold circulating transmission device. The die lifting device comprises a mounting base plate, a first sliding groove, a second sliding groove, two die lifting assemblies and two propelling devices, the two sliding grooves are formed in the upper side and the lower side of the mounting base plate, and the propelling devices can push a die on the die lifting assembly at one end into the sliding grooves and transfer a die originally located at the other end of the sliding grooves to the other die lifting assembly. After the two die lifting assemblies are switched in height, the other propelling device can conduct reverse propelling, so that the dies on the two die lifting assemblies are switched again, then one-time circulation is completed after the two die lifting assemblies are switched in height again, and compared with an existing annular transmission line, the annular transmission line can be suitable for various application occasions, and the production efficiency is improved. In addition, compared with an annular guide rail, the overall machining precision, machining difficulty and machining cost of the guide rail are much lower, and the guide rail is more durable and convenient to debug in the later period.

Description

Technical Field

[0001] The utility model relates to a mold transmission line, in particular to a mold circulating transmission device. Background Art

[0002] In industrial production, in order to improve the production efficiency of products, enterprises often introduce automated production lines. A number of processing stations and a transmission line for transmitting workpieces to be processed are fixedly arranged on the automated production line, and the transmission line can continuously transmit the workpieces to be processed through all the processing stations in sequence. The transmission line is divided into a linear transmission line and a circular transmission line.

[0003] Some products (such as cake bottoms) need to be positioned or shaped by molds during transmission and processing. However, the number of molds themselves is limited, so a circular transmission line is required. A fixed number of molds can be arranged on the circular transmission line to carry the workpieces to be processed, and these molds can be used continuously in a cycle. Existing circular transmission lines generally include a circular guide rail and a number of sliding tables slidably fitted thereon. However, due to the relatively high manufacturing precision requirements for the circular guide rail and the sliding table, the cost of customizing a set of circular transmission lines is relatively high. Moreover, the load between the sliding table and the circular guide rail is borne by load wheels, and such a structure also determines that the higher the load-bearing capacity, the greater the material cost to be paid. In particular, the stations with stamping processes are not suitable for use on circular guide rails. Therefore, it is particularly important to develop a circular transmission line with a relatively simple structure, suitable for stamping processes, durable, low cost and easy to maintain. Summary of the Invention

[0004] The utility model provides a mold circulating transmission device, which solves the problem in the prior art that the circular transmission line with a circular guide rail structure is not suitable for applying stamping processes.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: A mold circulating transmission device, characterized by comprising:

[0006] An installation base plate, horizontally and fixedly arranged, with a first chute evenly distributed in the length direction on its upper surface, and a second chute parallel and opposite to the first chute is arranged at the bottom of the installation base plate;

[0007] A number of molds, slidably assembled in the first chute and the second chute;

[0008] Two track-changing windows, formed through the installation base plate and located at the front and rear ends of the first chute;

[0009] Two mold lifting components, including a lifting module and a lifting platform driven by it. The lifting platform can carry a single or multiple molds at the same time. The two mold lifting components are respectively arranged at the bottoms of the two rail-changing windows, and are correspondingly set as an upward mold lifting component and a downward mold lifting component. The lifting module can drive the lifting platform to reciprocally switch between the heights where the two chutes are located;

[0010] Two propulsion devices, which are divided into a first propulsion device arranged at the front end of the installation substrate and facing backward and a second propulsion device arranged at the rear end of the installation substrate and facing forward. The first propulsion device can push the mold on the upward mold lifting component into the first chute, and the second propulsion device can push the mold on the downward mold lifting component into the second chute. The reciprocating pushing distance of the propulsion device is the length of a single or multiple molds.

[0011] Generally, each mold in the first chute of the present utility model can correspond to a processing station, while the molds on the two lifting modules can correspond to the loading and unloading stations. The bottom of the first chute corresponds to the installation substrate, and this part mainly plays the role of supporting the mold. Therefore, by adjusting the thickness and strength of the installation substrate, the present utility model can be adapted to a variety of application scenarios, especially the stamping process with relatively large downward pressure and impact. For stations without special strength requirements, the self-weight of the installation substrate can be reduced by opening holes and slots.

[0012] The total number of molds carried by the present utility model is determined by the number of molds that the lifting module can carry and the number of molds that the two chutes can carry. The specific relationship is: the number of molds M = 2m * n + m, where m is the number of molds that the lifting module can carry at a time, n is a natural number greater than or equal to 1, and m * n is the number of molds that a single chute can carry. The maximum number of processing stations that the present utility model can arrange is m * n + 2m, which corresponds to the number of molds on the first chute and the number of molds that the front and rear two lifting modules can carry.

[0013] The operating principle of the present utility model is as follows: In the initial state, the upward mold lifting component is at a high position, and the corresponding lifting platform carries a mold. The downward mold lifting component is at a high position, and its corresponding lifting platform is in an empty state. The two chutes are filled with molds; after starting to run, the first propulsion device pushes all the molds on the upward mold lifting component into the first chute and then resets. The mold originally at the rear end of the first chute is pushed onto the lifting platform of the downward mold lifting component. Then, the two mold lifting components lower the corresponding two lifting platforms to a low position. Then, the second propulsion device pushes all the molds on the downward mold lifting component into the second chute and then resets. The mold originally at the front end of the second chute is pushed onto the lifting platform of the upward mold lifting component. Then, the two mold lifting components push the corresponding two lifting platforms to a high position again to perform the next round of cycle. The action interval of the two propulsion devices is determined by the time consumed by the slowest processing station.

[0014] Further, a positioning cylinder is provided on the installation substrate and on the side of the first chute. The axial direction of the cylinder rod of the positioning cylinder is perpendicular to the first chute. A top block is provided on the cylinder rod. The top block can press and fix the mold against the side wall of the first chute. The top block is a cone, and a positioning groove matching the shape of the top block is provided on the side surface of the mold. When the two propulsion devices are in the standby state, the mold in the first chute is in a static state. This stage corresponds to the feeding, discharging, and processing of the products to be processed on the mold at the corresponding workstations. Therefore, it is necessary to ensure that the mold remains fixed and positioned at a fixed position. However, in order to improve the smoothness of the mold sliding in the chute in the present invention, the actual width dimension of the mold is slightly smaller than the accommodating width of the chute, so it is impossible to ensure the position accuracy of the mold. For this reason, a positioning cylinder is provided corresponding to each mold at each workstation. When the mold is in a static state, the positioning cylinder will eject, and the top block thereon will press and fix the mold against the side wall of the first chute. At the same time, the top block cooperates with the positioning groove on the mold, so that the mold is completely fixed and accurately positioned.

[0015] Further, a rear limiting member for horizontally abutting and limiting the mold from the first chute is provided in the rear area of the rear track-changing window; a front limiting member for horizontally abutting and limiting the mold from the second chute is provided in the front area of the front track-changing window; the two limiting members are fixedly connected to the installation substrate to ensure that the mold moves a fixed distance each time; both the rear limiting member and the front limiting member are bolt structures made of plastic and are horizontally screwed onto the installation substrate. First, the plastic material can reduce the vibration and noise during collision and avoid damage to the mold. Second, the bolt structure can facilitate fine-tuning the position of the limiting member and is convenient for later debugging.

[0016] Therefore, the utility model has the following characteristics compared with the prior art: 1. It includes an installation substrate, a first chute, a second chute, two mold lifting assemblies and two propulsion devices. The two chutes are arranged on the upper and lower sides of the installation substrate. The propulsion device can push the mold on one mold lifting assembly to the chute and transfer the mold originally located at the other end of the chute to the other mold lifting assembly. Then, after the two mold lifting assemblies switch heights, the other propulsion device can push in the reverse direction, causing the molds on the two mold lifting assemblies to switch again. Then, after the two mold lifting assemblies switch heights again, a cycle is completed. Compared with the existing ring conveyor line, the installation substrate of the utility model plays a role in supporting the mold. By adjusting the thickness and strength of the installation substrate, the utility model can be adapted to a variety of application scenarios, especially the stamping process with large downward pressure and impact. Moreover, the overall processing accuracy, processing difficulty and processing cost of the utility model are much lower than those of the ring guide rail, and it is more durable and convenient for later debugging; 2. When the mold is in a static state, the positioning cylinder will eject, and the top block on it will press and fix the mold against the side wall of the first chute. At the same time, the top block cooperates with the positioning groove on the mold, so that the mold is completely fixed and accurately positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. Figure 1 is a schematic structural diagram of the utility model without installing the mold;

[0018] FIG. Figure 2 is an enlarged view of part A of FIG. Figure 1 ;

[0019] FIG. Figure 3 is an enlarged view of part B of FIG. Figure 1 ;

[0020] FIG. Figure 4 is a position relationship diagram of the installation substrate and the two chutes;

[0021] FIG. Figure 5 is a longitudinal sectional view of the utility model in the front-back direction;

[0022] FIG. Figure 6 is an enlarged view of part C of FIG. Figure 5 ;

[0023] FIG. Figure 7 is a schematic structural diagram of the utility model when installing the mold;

[0024] FIG. Figure 8 is a schematic structural diagram of the mold. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions of the present utility model will be further specifically described below through embodiments and in conjunction with the drawings.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] Example 1: See Figure 1 and Figure 7 , a mold circulating transmission device, comprising:

[0028] See Figure 4 , a mounting substrate 100, horizontally and fixedly arranged. On the upper surface of the mounting substrate, there are two parallel and spaced upper retaining bars 110. A first sliding groove 101 is defined between the two upper retaining bars and the upper surface of the mounting substrate; on the lower surface of the mounting substrate, there are two parallel and spaced lower retaining bars 120. A supporting plate 130 is provided at the bottom of the lower retaining bars. A second sliding groove 102 is defined between the two upper retaining bars and the upper surface of the supporting plate. The two sliding grooves are vertically aligned.

[0029] See Figure 8 , seven molds 200. The molds as a whole are flat cuboids, and three molds are respectively resident in the first sliding groove and the second sliding groove.

[0030] Two rail-changing windows 140 are formed through the mounting substrate and are located at the front and rear ends of the first sliding groove.

[0031] See Figure 5 , Figure 6 , two mold lifting assemblies 300, including a lifting module 310 and a lifting platform 320 driven by it; the lifting module includes a cylinder seat 311 fixed to the lower side of the mounting substrate, a lifting cylinder 312 vertically fixed to the cylinder seat, several linear bearings 313 vertically fixed to the cylinder seat, and a lifting column 314 slidably assembled in the linear bearings. The cylinder rod and the lifting column of the lifting cylinder are both fixedly connected to the bottom of the lifting platform; both lifting platforms can carry the remaining one mold. The two mold lifting assemblies are respectively arranged at the bottoms of the two rail-changing windows, and are correspondingly set as an upward mold lifting assembly 301 and a downward mold lifting assembly 302. The lifting module can drive the lifting platform to reciprocally switch between the heights where the two sliding grooves are located.

[0032] See Figure 1, two propulsion devices 400, specifically long cylinders, with a pushing part 410 made of rubber or plastic at the end of the cylinder rod, are divided into a first propulsion device 401 arranged at the front end of the mounting substrate and facing backward and a second propulsion device 402 arranged at the rear end of the mounting substrate and facing forward. The first propulsion device can push the mold on the upward mold lifting assembly into the first chute, and the second propulsion device can push the mold on the downward mold lifting assembly into the second chute.

[0033] Each mold in the first chute of this embodiment can correspond to a processing station, while the molds on the two lifting modules can correspond to the loading and unloading stations. The bottom of the first chute corresponds to the mounting substrate, and this part mainly serves to support the mold. Therefore, by adjusting the thickness and strength of the mounting substrate, this embodiment can be adapted to a variety of application scenarios, especially stamping processes with large downward pressure and impact. For stations with no special strength requirements, the self-weight of the mounting substrate can be reduced by opening holes and slots.

[0034] See Figure 2 and Figure 3 , five positioning cylinders 500 are arranged on the mounting substrate and on the side of the first chute, corresponding to the three molds in the first chute and the molds on the two lifting platforms. The axial direction of the cylinder rod of the positioning cylinder is perpendicular to the first chute, and a top block 510 is arranged on the cylinder rod. The top block can press the mold against and fix it to the side wall of the first chute. A guiding hole 111 for the top block to pass through and be guided is arranged at the corresponding position on the upper stop bar; the top block is a cone, and a positioning groove 210 matching the outer shape of the top block is arranged on the side of the mold. When the two propulsion devices are in the standby state, the molds in the first chute are in a static state. This stage corresponds to the loading, unloading, and processing stages of the products to be processed on the molds at the corresponding stations. Therefore, it is necessary to ensure that the molds are fixed and positioned at a fixed position. However, in this embodiment, in order to improve the smoothness of the mold sliding in the chute, the actual width dimension of the mold is slightly smaller than the accommodating width of the chute, so it is impossible to ensure the position accuracy of the mold. For this reason, each mold at each station is correspondingly provided with a positioning cylinder. When the mold is in a static state, the positioning cylinder will eject, and the top block on it will press the mold against and fix it to the side wall of the first chute. At the same time, the top block cooperates with the positioning groove on the mold, so that the mold is completely fixed and accurately positioned.

[0035] See Figure 2 and Figure 3, a rear limiting member 601 capable of horizontally abutting and limiting the mold coming from the first chute is provided in the rear area of the rail-changing window at the rear end; a front limiting member 602 capable of horizontally abutting and limiting the mold coming from the second chute is provided in the front area of the rail-changing window at the front end; the two limiting members are fixedly connected to the installation substrate relatively to ensure that the mold moves a fixed distance each time. Both the rear limiting member and the front limiting member are bolt structures made of plastic and are horizontally screwed onto the installation substrate. First, the plastic material can reduce the vibration and noise during collision and avoid damage to the mold. Second, the bolt structure can facilitate fine-tuning the position of the limiting member and is convenient for later debugging.

[0036] See Figure 3 , Figure 6 , a front buffer cylinder 701 is provided at the front end of the installation substrate, and an abutting block one 702 facing the mold from the second chute is provided on its cylinder rod; a rear buffer cylinder 703 is provided at the rear end of the installation substrate, and an abutting block two 704 facing the mold from the first chute is provided on its cylinder rod; the material of the abutting block is rubber or plastic. The corresponding buffer cylinder needs to extend the abutting block in advance before the corresponding propulsion device acts. In this way, when the propulsion device pushes out the mold, the mold at the outermost end will first contact the abutting block and continue to compress the buffer cylinder, which can reduce the speed of the mold in advance, reduce the impact force of the mold on the rear limiting member and the front limiting member, is beneficial to reducing the vibration and impact noise of the entire equipment, and can effectively improve the material life of the impact part.

[0037] The operating principle of this embodiment is as follows: The initial state is set as that the upward mold lifting assembly is at a high position, and a mold is carried on its corresponding lifting platform; the downward mold lifting assembly is at a high position, and its corresponding lifting platform is in an empty state; the two chutes are filled with molds. Except for the positioning cylinder at the frontmost end being in the ejected state, the rest are in the retracted state. After starting to run, the positioning cylinder at the frontmost end first retracts, the rear buffer cylinder extends, the first propulsion device pushes all the molds on the upward mold lifting assembly into the first chute and then resets. The mold originally at the rear end of the first chute is pushed onto the lifting platform of the downward mold lifting assembly, and the rear buffer cylinder is squeezed and reset. The remaining 4 positioning cylinders are all ejected. Then the two mold lifting assemblies lower the corresponding two lifting platforms to a low position. Then the front buffer cylinder extends, and the second propulsion device pushes all the molds on the downward mold lifting assembly into the second chute and then resets. The mold originally at the front end of the second chute is pushed onto the lifting platform of the upward mold lifting assembly. Then the two mold lifting assemblies push the corresponding two lifting platforms to a high position again, and the positioning cylinder at the frontmost end ejects, and the rest of the positioning cylinders retract. At this time, one cycle is completed. The action interval of the two propulsion devices is determined by the time consumed by the slowest processing station.

[0038] See Figure 8, a spacer block 220 is provided on the rear side wall of the mold. The material hardness of the spacer block is lower than that of the mold, generally made of plastic or soft metal. The spacer block can also be provided on the front side wall of the mold.

[0039] See Figure 2 , two horizontally distributed front and rear supporting bars 321 are provided on the upper surface of the lifting platform. The material used for the supporting bars is generally high-strength and wear-resistant metal. The supporting bars are in contact with the bottom of the mold, which can effectively reduce the contact area and reduce the wear on the bottom surface of the mold.

[0040] The electrical structure and the corresponding program control in this embodiment are skills possessed by those skilled in the art, so they will not be elaborated here.

[0041] It is obvious to those skilled in the art that the present utility model can be changed in various ways. Such changes are not considered to depart from the scope of the present utility model. All such modifications obvious to those skilled in the art will be included within the scope of the present claims.

Claims

1. A mold cyclic transmission device, characterized in that, Including: An installation substrate, which is horizontally and fixedly arranged. There are straightly distributed first chutes on the upper surface in the length direction. There is a second chute parallel and opposite to the first chute at the bottom of the installation substrate. Several molds, which are slidably assembled in the first chute and the second chute. Two rail-changing windows, which penetrate and are formed on the installation substrate and are located at the front and rear ends of the first chute. Two mold lifting assemblies, including a lifting module and a lifting platform driven by it. The lifting platform can carry a single or multiple molds at the same time. The two mold lifting assemblies are respectively arranged at the bottoms of the two rail-changing windows, and are correspondingly set as an upward mold lifting assembly and a downward mold lifting assembly. The lifting module can drive the lifting platform to reciprocally switch between the heights where the two chutes are located. Two propulsion devices, which are divided into a first propulsion device arranged at the front end of the installation substrate and facing backward and a second propulsion device arranged at the rear end of the installation substrate and facing forward. The first propulsion device can push the mold on the upward mold lifting assembly into the first chute, and the second propulsion device can push the mold on the downward mold lifting assembly into the second chute.

2. The mold circulating transfer device according to claim 1, wherein: A positioning cylinder is arranged on the side of the installation substrate and located on the side of the first chute. The axial direction of the cylinder rod of the positioning cylinder is perpendicular to the first chute. There is a top block on the cylinder rod, and the top block can press and fix the mold against the side wall of the first chute.

3. The mold circulating transfer device according to claim 2, wherein: The top block is a cone, and there is a positioning groove on the side of the mold that matches the shape of the top block.

4. The mold circulating transfer device according to claim 1, wherein: In the rear area of the rail-changing window at the rear end, there is a rear limiting member that can horizontally abut and limit the mold coming from the first chute; in the front area of the rail-changing window at the front end, there is a front limiting member that can horizontally abut and limit the mold coming from the second chute; the two limiting members are fixedly connected to the installation substrate.

5. The mold circulating transmission device according to claim 4, wherein: Both the rear limiting member and the front limiting member are bolt structures made of plastic and are horizontally screwed onto the installation substrate.

6. The mold circulating transfer device according to claim 4, wherein: A front buffer cylinder is arranged at the front end of the installation substrate, and there is a first abutting block on its cylinder rod that faces the mold coming from the second chute; a rear buffer cylinder is arranged at the rear end of the installation substrate, and there is a second abutting block on its cylinder rod that faces the mold coming from the first chute.

7. The mold circulating transmission device according to claim 1, characterized in that: There is a cushion block on the rear side wall of the mold, and the hardness of the material of the cushion block is lower than that of the mold.

8. The mold circulating transmission device according to claim 1, characterized in that: The lifting module includes a cylinder seat fixed to the lower side of the installation substrate, a lifting cylinder vertically fixed to the cylinder seat, several linear bearings vertically fixed to the cylinder seat, and a lifting column slidably assembled in the linear bearings. The cylinder rod of the lifting cylinder and the lifting column are both fixedly connected to the bottom of the lifting platform.

9. The mold cycle transfer device according to claim 1, wherein: There are two parallel and spaced upper bars on the upper surface of the installation substrate. The first chute is defined between the two upper bars and the upper surface of the installation substrate; there are two parallel and spaced lower bars on the lower surface of the installation substrate. There is a supporting plate at the bottom of the lower bar. The second chute is defined between the two upper bars and the upper surface of the supporting plate.

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