Mould circulating transmission device

Abstract

The invention relates to a mold circulating conveying 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 mold lifting assemblies are switched in height, the other propelling device can conduct reverse propelling, so that the molds on the two mold lifting assemblies are switched again, then one-time circulation is completed after the two mold 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, the overall machining precision, machining difficulty and machining cost of the guide rail are much lower than those of an annular guide rail, and the guide rail is more durable and convenient to debug in the later period.

Description

Technical Field

[0001] The invention relates to a mould transmission line, in particular to a mould circulation transmission device. Background Art

[0002] In industrial production, in order to improve the production efficiency of products, enterprises often introduce automated production lines. The automated production line is fixed with several processing stations and transmission lines for transmitting the products to be processed. The transmission lines can continuously transmit the products to be processed through all processing stations in sequence. Transmission lines are divided into linear transmission lines and ring transmission lines.

[0003] Some products (such as cake trays) require molds to be positioned or shaped during the transmission and processing process, but the number of molds themselves is limited, so a ring transmission line is needed. A fixed number of molds can be arranged on the ring transmission line to carry the products to be processed, and these molds can be used in a continuous cycle. Existing ring transmission lines generally include a ring guide rail and several slides that slide on it, but due to the high manufacturing precision requirements of the ring guide rail and the slide, the cost of customizing a set of ring transmission lines is also relatively high. Moreover, the slide and the ring guide rail are loaded by load wheels. Such a structure also determines that the higher the load, the greater the material cost. In particular, stations with stamping processes are not suitable for use on ring guide rails. Therefore, it is particularly important to develop a ring transmission line with a relatively simple structure, adapted to the stamping process, durable, low cost and easy maintenance. Summary of the invention

[0004] The invention provides a mold circulation transmission device, which solves the problem in the prior art that a ring transmission line adopting a ring guide rail structure is not suitable for stamping process.

[0005] The above technical problem of the present invention is mainly solved by the following technical solution: a mold circulation transmission device, characterized in that it includes:

[0006] The mounting substrate is fixedly arranged horizontally, and a first sliding groove is arranged in a straight manner in the length direction of the upper surface thereof, and a second sliding groove is arranged at the bottom of the mounting substrate and is parallel to and opposite to the first sliding groove;

[0007] A plurality of molds, slidably assembled in the first slide groove and the second slide groove;

[0008] Two track-changing windows are formed through the mounting base plate and are located at the front and rear ends of the first slide groove;

[0009] Two mold lifting components, including a lifting module and a lifting platform driven by the lifting module, the lifting platform can carry a single or multiple molds at the same time, the two mold lifting components are respectively arranged at the bottom of the two track change windows, and are correspondingly set as an upward mold lifting component and a downward mold lifting component, and the lifting module can drive the lifting platform to switch back and forth between the heights of the two slide slots;

[0010] The two propulsion devices are divided into a first propulsion device arranged at the front end of the mounting base and facing backward, and a second propulsion device arranged at the rear end of the mounting base and facing forward. The first propulsion device can push the mold on the upward mold lifting assembly into the first slide groove, and the second propulsion device can push the mold on the downward mold lifting assembly into the second slide groove. The reciprocating pushing distance of the propulsion device is the length of a single or multiple molds.

[0011] Each mold in the first chute of the present invention generally corresponds to a processing station, and the molds on the two lifting modules correspond to the loading and unloading stations. The bottom of the first chute corresponds to the mounting substrate, which mainly supports the mold. Therefore, by adjusting the thickness and strength of the mounting substrate, the present invention can be adapted to a variety of applications, especially stamping processes with large downward pressure and impact. For stations that do not require special strength, the weight of the mounting substrate can be reduced by opening holes and slots.

[0012] The total number of molds carried by the present invention is determined by the number of molds that can be carried by the lifting module and the number of molds that can be carried by the two slides. The specific relationship is: the number of molds M = 2m*n+m, where m is the number of molds that can be carried by the lifting module at a time, n is a natural number ≥ 1, and m*n is the number of molds that can be carried by a single slide. The maximum number of processing stations that can be arranged in the present invention is m*n+2m, which corresponds to the number of molds on the first slide and the number of molds that can be carried on the front and rear lifting modules.

[0013] The operating principle of the present invention is as follows: the initial state is set as follows: the upper mold lifting assembly is at a high position, and the corresponding lifting platform is loaded with molds; the lower mold lifting assembly is at a high position, and the corresponding lifting platform is in an empty state, and the two chutes are full of molds; after starting operation, the first propulsion device pushes all the molds on the upper mold lifting assembly into the first chute and resets them, and the molds originally at the rear end of the first chute are pushed onto the lifting platform on the lower mold lifting assembly, and then the two mold lifting assemblies lower the corresponding two lifting platforms to a low position, and then the second propulsion device pushes all the molds on the lower mold lifting assembly into the second chute and resets them, and the molds originally at the front end of the second chute are pushed onto the lifting platform on the upper mold lifting assembly, and then the two mold lifting assemblies push the corresponding two lifting platforms to a high position again for the next cycle. The action interval of the two propulsion devices is determined by the time consumed by the slowest processing station.

[0014] Furthermore, a positioning cylinder is provided on the mounting base plate and on the side of the first slide, the cylinder rod of the positioning cylinder is axially arranged perpendicular to the first slide, and a top block is provided on the cylinder rod, and the top block can abut and fix the mold on the side wall of the first slide; the top block is a cone, and the side of the mold is provided with a positioning groove matching the shape of the top block. When the two propulsion devices are in a standby state, the mold in the first slide is in a static state. This stage corresponds to the stage of loading and unloading materials and the processing of the product to be processed on the mold at the corresponding station. Therefore, it is necessary to ensure that the mold remains fixed and positioned in a fixed position. However, in order to improve the smoothness of the mold sliding in the slide, the actual width of the mold is slightly smaller than the accommodating width of the slide, so the position accuracy of the mold cannot be guaranteed. To this end, a positioning cylinder is provided corresponding to the mold on each workstation. When the mold is in a static state, the positioning cylinder will be ejected, and the ejecting block on it will press and fix the mold on the side wall of the first slide groove. At the same time, the ejecting block cooperates with the positioning groove on the mold, so that the mold is completely fixed and accurately positioned.

[0015] Furthermore, the rear area of ​​the track-changing window at the rear end is provided with a rear stopper that can limit the horizontal contact of the mold from the first slide; the front area of ​​the track-changing window at the front end is provided with a front stopper that can limit the horizontal contact of the mold from the second slide; the two stoppers are fixedly connected relative to the mounting base plate to ensure that the mold moves a fixed distance each time; the rear stopper and the front stopper are both bolt structures made of plastic material, which are horizontally screwed on the mounting base plate. First, the plastic material can reduce vibration and noise during collision and prevent damage to the mold. Then, the bolt structure can facilitate fine-tuning the position of the stopper, which is convenient for later debugging.

[0016] Therefore, compared with the prior art, the present invention has the following characteristics: 1. It includes a mounting base, a first slide groove, a second slide groove, two mold lifting assemblies and two propulsion devices. The two slide grooves are arranged on the upper and lower sides of the mounting base. The propulsion device can push the mold on the mold lifting assembly at one end into the slide groove, and transfer the mold originally located at the other end of the slide groove to the other mold lifting assembly. After the two mold lifting assemblies switch heights, the other propulsion device can push in the opposite direction, so that the molds on the two mold lifting assemblies switch again. After the two mold lifting assemblies switch heights again, a cycle is completed. Compared with In the existing annular transmission line, the mounting base plate of the present invention plays the role of supporting the mold. By adjusting the thickness and strength of the mounting base plate, the present invention can be adapted to a variety of applications, especially stamping processes with large downward pressure and impact. Moreover, the overall processing accuracy, processing difficulty and processing cost of the present invention are much lower than those of the annular guide rail, and it is also more durable and convenient for later debugging; 2. When the mold is in a static state, the positioning cylinder will be ejected, and the ejecting block thereon will press and fix the mold on the side wall of the first slide groove. At the same time, the ejecting 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] Attached Figure 1 This is a structural schematic diagram of the present invention when the mold is not installed;

[0018] Attached Figure 2 Yes Figure 1 A magnified view of part A;

[0019] Attached Figure 3 Yes Figure 1 A magnified view of part B;

[0020] Attached Figure 4 It is a positional relationship diagram of the mounting base plate and the two slide grooves;

[0021] Attached Figure 5 is a longitudinal cross-sectional view of the present invention in the front-rear direction;

[0022] Attached Figure 6 Yes Figure 5 Enlarged view of part C;

[0023] Attached Figure 7 It is a structural schematic diagram of the present invention when installing the mold;

[0024] Attached Figure 8 It is a schematic diagram of the structure of the mold. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

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

[0028] See Figure 4 The mounting substrate 100 is fixedly arranged horizontally, and the upper surface of the mounting substrate is provided with two upper bars 110 which are distributed in parallel and spaced apart, and a first slide groove 101 is defined between the two upper bars and the upper surface of the mounting substrate; the lower surface of the mounting substrate is provided with two lower bars 120 which are distributed in parallel and spaced apart, and a supporting plate 130 is provided at the bottom of the lower bars, and a second slide groove 102 is defined between the two upper bars and the upper surface of the supporting plate, and the two slide grooves are directly opposite to each other up and down;

[0029] See Figure 8 , 7 molds 200, the mold as a whole is a flat rectangular parallelepiped, wherein three molds are permanently stationed in the first chute and the second chute respectively;

[0030] Two track change windows 140 are formed through the mounting base plate and are located at the front and rear ends of the first slide groove;

[0031] See Figure 5 , Figure 6 , two mold lifting components 300, including a lifting module 310 and a lifting platform 320 driven by the lifting module; the lifting module includes a cylinder seat 311 fixed to the lower side of the mounting base, a lifting cylinder 312 vertically fixed on the cylinder seat, a plurality of linear bearings 313 vertically fixed on the cylinder seat, and a lifting column 314 slidably assembled in the linear bearing, and the cylinder rod and the lifting column of the lifting cylinder are fixedly connected to the bottom of the lifting platform; both lifting platforms can carry the remaining mold, and the two mold lifting components are respectively arranged at the bottom of the two track change windows, which are correspondingly set as the upper mold lifting component 301 and the lower mold lifting component 302, and the lifting module can drive the lifting platform to switch back and forth between the heights of the two slide slots;

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

[0033] Each mold in the first chute of this embodiment can correspond to a processing station, and 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, which mainly supports the mold. Therefore, by adjusting the thickness and strength of the mounting substrate, this embodiment can be adapted to a variety of applications, especially stamping processes with large downward pressure and impact. For stations that do not require special strength, the 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 base 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 cylinder rod of the positioning cylinder is axially arranged perpendicular to the first chute, and a top block 510 is arranged on the cylinder rod. The top block can fix the mold on the side wall of the first chute, and a guide hole 111 for the top block to pass and guide is arranged at the corresponding position on the upper gear bar; the top block is a cone, and a positioning groove 210 matching the shape of the top block is arranged on the side 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 stage of loading, unloading and processing of the product to be processed on the mold at the corresponding station. 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, the actual width of the mold is slightly smaller than the accommodating width of the chute, so the position accuracy of the mold cannot be guaranteed. To this end, a positioning cylinder is provided corresponding to the mold on each workstation. When the mold is in a static state, the positioning cylinder will be ejected, and the ejecting block on it will press and fix the mold on the side wall of the first slide groove. At the same time, the ejecting 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 3The rear area of ​​the track change window at the rear end is provided with a rear limiter 601 that can limit the horizontal contact of the mold from the first chute; the front area of ​​the track change window at the front end is provided with a front limiter 602 that can limit the horizontal contact of the mold from the second chute; the two limiters are fixedly connected relative to the mounting base plate to ensure that the mold moves a fixed distance each time. The rear limiter and the front limiter are both bolt structures made of plastic material, which are horizontally screwed on the mounting base plate. First, the plastic material can reduce vibration and noise during collision and prevent damage to the mold. Then, the bolt structure can facilitate fine-tuning the position of the limiter for later debugging.

[0036] See Figure 3 , Figure 6 , a front buffer cylinder 701 is provided at the front end of the mounting base, and a contact block 702 facing the mold from the second slide is provided on its cylinder rod; a rear buffer cylinder 703 is provided at the rear end of the mounting base, and a contact block 704 facing the mold from the first slide is provided on its cylinder rod; the contact block is made of rubber or plastic. The corresponding buffer cylinder needs to extend the contact block in advance before the corresponding propulsion device is actuated, so that when the propulsion device pushes the mold out, the mold at the end will contact the contact block first and continue to compress the buffer cylinder, so that the mold can be decelerated in advance, reducing the impact force between the mold and the rear limiter and the front limiter, which is beneficial to reducing the vibration and impact noise of the entire equipment, and can effectively increase the material life of the impact part.

[0037] The operating principle of this embodiment is as follows: in the initial state, the upper mold lifting assembly is in a high position, and its corresponding lifting platform carries a mold; the lower mold lifting assembly is in a high position, and its corresponding lifting platform is in an empty state; the two slides are full of molds, and except for the frontmost positioning cylinder which is in an ejection state, the rest are in a retracted state; after starting operation, the frontmost positioning cylinder is retracted first, and the rear buffer cylinder is extended; the first propulsion device pushes all the molds on the upper mold lifting assembly into the first slide and resets them; the mold originally at the rear end of the first slide is pushed to the lower mold lifting assembly On the lifting platform of the descending assembly, the rear buffer cylinder is squeezed and reset, and the other four positioning cylinders are all pushed out, then the two mold lifting assemblies lower the corresponding two lifting platforms to the low position, and then the front buffer cylinder extends, and the second propulsion device pushes all the molds on the descending mold lifting assembly into the second slide and resets them, and the mold originally at the front end of the second slide is pushed to the lifting platform on the ascending mold lifting assembly, and then the two mold lifting assemblies push the corresponding two lifting platforms to the high position again, the frontmost positioning cylinder is pushed out, and the other positioning cylinders are retracted, and a cycle is completed at this time. The action interval of the two propulsion devices is determined by the time consumed by the slowest processing station.

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

[0039] See Figure 2 The upper surface of the lifting platform is provided with two horizontally distributed supporting bars 321, which are generally made of 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 of the mold.

[0040] The electrical structure and corresponding program control of this embodiment are within the skill of those skilled in the art, and thus will not be described in detail here.

[0041] The present invention can be modified in various ways which are obvious to those skilled in the art, and such modifications are not considered to depart from the scope of the present invention. All such modifications which are obvious to those skilled in the art are intended to be included within the scope of the present claims.

Claims

1. A mold circulation transmission device, characterized in that: Included are: The mounting substrate is fixedly arranged horizontally, and a first sliding groove is arranged in a straight manner in the length direction of the upper surface thereof, and a second sliding groove is arranged at the bottom of the mounting substrate and is parallel to and opposite to the first sliding groove; A plurality of molds, slidably assembled in the first slide groove and the second slide groove; Two track-changing windows are formed through the mounting base plate and are located at the front and rear ends of the first slide groove; Two mold lifting components, including a lifting module and a lifting platform driven by the lifting module, the lifting platform can carry a single or multiple molds at the same time, the two mold lifting components are respectively arranged at the bottom of the two track change windows, and are correspondingly set as an upward mold lifting component and a downward mold lifting component, and the lifting module can drive the lifting platform to switch back and forth between the heights of the two slide slots; The two propulsion devices are divided into a first propulsion device arranged at the front end of the mounting base and facing backwards, and a second propulsion device arranged at the rear end of the mounting base and facing forwards. The first propulsion device can push the mold on the upward mold lifting assembly into the first slide groove, and the second propulsion device can push the mold on the downward mold lifting assembly into the second slide groove.

2. The mold circulation transmission device according to claim 1, characterized in that: A positioning cylinder is provided on the mounting base and on the side of the first slide groove. The cylinder rod of the positioning cylinder is axially arranged perpendicular to the first slide groove. A top block is provided on the cylinder rod. The top block can abut and fix the mold on the side wall of the first slide groove.

3. The mold circulation transmission device according to claim 2 is characterized in that: The top block is a cone, and a positioning groove matching the shape of the top block is provided on the side of the mold.

4. The mold circulation transmission device according to claim 1, characterized in that: The rear area of ​​the track change window located at the rear end is provided with a rear limit member that can limit the horizontal contact of the mold from the first slide groove; the front area of ​​the track change window located at the front end is provided with a front limit member that can limit the horizontal contact of the mold from the second slide groove; the two limit members are fixedly connected relative to the mounting base plate.

5. The mold circulation transmission device according to claim 4, characterized in that: The rear limiting member and the front limiting member are both bolt structures made of plastic material and are horizontally screwed onto the mounting base plate.

6. The mold circulation transmission device according to claim 4, characterized in that: A front buffer cylinder is provided at the front end of the mounting base, and a contact block 1 is provided on its cylinder rod for facing the mold on the second slide; a rear buffer cylinder is provided at the rear end of the mounting base, and a contact block 2 is provided on its cylinder rod for facing the mold on the first slide.

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

8. The mold circulation transmission device according to claim 1, characterized in that: The lifting module includes a cylinder seat fixed to the lower side of the mounting base, a lifting cylinder vertically fixed on the cylinder seat, a plurality of linear bearings vertically fixed on 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 circulation transmission device according to claim 1, characterized in that: The upper surface of the mounting substrate is provided with two upper bars which are distributed in parallel and at intervals, and the first slide groove is defined between the two upper bars and the upper surface of the mounting substrate; the lower surface of the mounting substrate is provided with two lower bars which are distributed in parallel and at intervals, and a supporting plate is provided at the bottom of the lower bars, and the second slide groove is defined between the two upper bars and the upper surface of the supporting plate.

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