Multi-layer integral die-changing cold and hot forming machine

Abstract

The utility model discloses a multi-layer integral die-changing cold and hot forming machine which comprises a transverse moving track, and two die-changing trolleys capable of transversely moving and longitudinally driving are arranged on the transverse moving track. A plurality of forming presses are arranged on the rear side of the die changing trolley, a multi-layer structure is arranged in each forming press, and a die traction frame is arranged on the die changing trolley and can achieve multi-layer die supply. A transverse moving guide part is arranged at the bottom of the die changing trolley; the die changing trolley comprises a trolley frame, a transverse moving driving device is arranged on the trolley frame, multiple layers of die tables are horizontally arranged in the die changing trolley at intervals, traction positioning rods are arranged among the multiple layers of die tables, and a lifting driving device is arranged on the trolley frame. The lifting driving device is connected with the mold tables through a driving belt or a chain to realize vertical traction movement of the multiple layers of mold tables; a longitudinal moving push-pull part is arranged on the trolley frame, a push-pull driving part and a push-pull guiding part are arranged on the longitudinal moving push-pull part, a traction frame is arranged on the push-pull guiding part, and the traction frame is driven by the push-pull driving part to move longitudinally.

Description

Technical Field

[0001] This utility model relates to the field of high-performance composite material extrusion molding technology, and specifically discloses a multi-layer integral mold changing cold and hot forming machine. Background Technology

[0002] In the processing of high-performance composite material products, when producing similar products or component products, the existing technology still involves independent molding, where personnel or equipment transfer the mold to the inside of the press, and the press is used to extrude and mold the product.

[0003] The technical drawbacks of the molding methods described above can be summarized as follows: 1. Low efficiency: In the current trend of automation equipment transformation, the independent operation of a single piece of equipment can no longer meet the current production needs; 2. Inability to operate in conjunction with each other and low degree of automation: In the existing composite material production mode, most of them still use the independent operation of multiple pieces of equipment, which cannot form a production system or production line. The uncertainty factors during worker operation increase, resulting in an increase in mold failure rate, a decrease in product yield, and even an increase in the risk of workplace accidents.

[0004] In view of the above-mentioned drawbacks, as a technical unit in the heavy press equipment industry, it is very necessary to design a multi-layer integral mold changing cold and hot forming machine. Its purpose is to replace the manual operation process or steps in the production process with equipment, minimize personnel operation, improve production efficiency and yield, and reduce the probability of work-related accidents. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a multi-layer integral mold changing cold and hot forming machine, which connects the mold changing trolley to the forming press, enabling the simultaneous supply and use of multiple sets of molds during operation, thereby improving the efficiency of automated production.

[0006] To achieve the above technical objectives, the present invention adopts the following solution: a multi-layer integral mold changing cold and hot forming machine, which includes a transverse track, on which two mold changing trolleys capable of transverse movement and longitudinal drive are arranged; a plurality of forming presses are arranged on the rear side of the mold changing trolleys, the forming presses have a multi-layer structure inside, and the mold changing trolleys are equipped with mold pulling frames to realize multi-layer mold supply.

[0007] The mold-changing trolley has a lateral guide at its bottom. The trolley includes a frame with a lateral drive device. Multiple mold platforms are horizontally spaced inside the trolley, with traction positioning rods between them. A lifting drive device is mounted on the frame, connecting to the mold platforms via a drive belt or chain to achieve vertical traction movement of the multiple mold platforms. A longitudinal push-pull section is mounted on the frame, including a push-pull drive and a push-pull guide. A traction frame is mounted on the push-pull guide, moving longitudinally under the drive of the push-pull drive. A vertical locking cylinder is mounted on the traction frame, with several vertical hooks on its drive end for hooking the mold base plate.

[0008] The forming press includes a press frame, a vertical extrusion cylinder is provided at the lower part or bottom end of the press frame, a vertical extrusion guide and a vertical positioning plate are provided inside the press frame, the press frame realizes the vertical guidance of the forming extrusion plate through the vertical extrusion guide, and a positioning blocking member is provided on the forming extrusion plate, the positioning blocking member cooperates with the blocking area on the vertical positioning plate to realize vertical limitation.

[0009] The trolley frame is equipped with a vertical linkage cylinder, which is connected to the bottom mold platform and drives it in a linkage manner.

[0010] The trolley frame is equipped with a vertical guide section, which enables the vertical movement and guidance of the multi-layer mold table.

[0011] The mold platform of the trolley frame is equipped with side guide wheels and bottom guide wheels, which cooperate to guide the mold in and out.

[0012] The rear side of the trolley frame is provided with a mold positioning plate, and a telescopic drive cylinder is provided in conjunction with the mold positioning plate. The mold positioning plate blocks the mold to prevent the mold from coming out of the multi-layer mold table.

[0013] The forming extrusion plate is equipped with guide wheels, which facilitate sliding of the mold during entry.

[0014] The press frame is provided with a telescopic function module, which includes a telescopic drive cylinder and a functional unit at the end of the telescopic drive cylinder. The functional unit is plugged into and matched with the functional area on the mold.

[0015] The beneficial effects of this utility model are as follows: Through the above-described configuration, two mold-changing trolleys capable of both horizontal and vertical movement are installed on the transverse track; several forming presses are installed at the rear of the mold-changing trolleys, each with a multi-layered structure; a mold pulling frame on the mold-changing trolley enables multi-layer mold supply; through this structure, the molds are grouped and aggregated by the mold-changing trolleys, and then guided to the forming presses; this utility model has a high degree of automation, enabling synchronous production of complete sets of molds, improving production efficiency and product forming accuracy, increasing product yield, reducing manual operation, and lowering the probability of workplace accidents. Attached Figure Description

[0016] Figure 1 This is a top view of the structure of the present invention in use;

[0017] Figure 2 This is a schematic diagram of the overall installation structure of the mold changing trolley;

[0018] Figure 3 This is a schematic diagram of the front three-dimensional structure of the mold-changing trolley;

[0019] Figure 4 This is a schematic diagram of the front three-dimensional structure of the mold-changing trolley;

[0020] Figure 5 This is a schematic diagram of the left side structure of the mold changing trolley;

[0021] Figure 6 This is a schematic diagram of the right side structure of the mold changing trolley;

[0022] Figure 7 for Figure 3 Enlarged schematic diagram of the structure of region A in the middle;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the front side of the forming press;

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of the rear side of the forming press;

[0025] Figure 10 This is a schematic diagram of the rear structure of the forming press;

[0026] Figure 11 for Figure 8 Enlarged schematic diagram of the structure of region B in the middle;

[0027] In the attached diagram: 1. Circular conveyor line; 2. Transverse track; 3. Mold changing trolley; 31. Trolley frame; 311. Side guide wheel; 312. Bottom guide wheel; 313. Rotary encoder; 314. Wire support frame; 315. Transverse position sensor; 32. Lifting drive device; 321. Lifting drive shaft; 322. Lifting chain; 323. Bottom gear seat; 324. Bottom gear; 33. Longitudinal push-pull section; 331. Longitudinal platform; 332. Push-pull screw; 333. Pulling frame; 334. Longitudinal guide rail; 34. Telescopic drive cylinder; 341. Mold positioning plate; 35. Transverse drive motor; 36. Vertical locking mechanism. 361. Cylinder; 37. Mold Table I; 371. Mold Table II; 372. Mold Table III; 373. Mold Table IV; 374. Pull Positioning Rod; 38. Vertical Linkage Cylinder; 4. Forming Press; 40. Press Frame; 41. Telescopic Drive Cylinder; 42. Top Frame; 43. Vertical Extrusion Guide Rail; 44. Sliding Block; 45. Forming Extrusion Plate; 451. Guide Wheel; 46. Functional Unit; 47. Vertical Extrusion Cylinder; 471. Forming Base Plate; 48. Sensor; 49. Vertical Positioning Plate; 491. Blocking Area; 401. Thermoforming Press; 402. Cold Forming Press; 5. Mold Base Plate; 51. Hook Slot. Detailed Implementation

[0028] As shown in the attached drawings, this utility model discloses a multi-layer integral mold changing cold and hot forming machine. This embodiment provides a detailed demonstration of the specific structure of the multi-layer integral mold changing cold and hot forming machine, and explains the usage method through specific embodiments. Those skilled in the art can implement this technical solution or make further technical extensions based on this technical solution. The scope of protection of this utility model is subject to the claims.

[0029] Example 1: A multi-layer integral mold changing cold and hot forming machine, the specific structure of which and the function of each part are described below:

[0030] It includes transverse track 2, such as Figure 1 , 2 As shown in Figure 3, a mold changing trolley 3 capable of horizontal movement and longitudinal drive is provided on the transverse track 2; several forming presses 4, including hot presses and cold presses, are provided on the rear side of the mold changing trolley 3; the forming presses 4 have a multi-layer structure inside, and a mold pulling frame is provided on the forming presses 3 to realize multi-layer mold supply.

[0031] The more detailed structure is as follows:

[0032] The mold changing trolley 3 uses a transverse track 2 at its bottom as a transverse guide, and is also equipped with a transverse position sensor 315 and a rotary encoder 313 to control the transverse accuracy. The forming press 3 includes a trolley frame 31, on which a transverse drive motor 35 is mounted as a transverse drive device. The forming press 3 has multiple layers of mold platforms horizontally spaced inside, such as mold platform I 37, mold platform II 371, mold platform III 372, and mold platform IV 373. A tension positioning rod 374 is provided between each pair of adjacent mold platforms. A lifting drive device 32 is mounted on the trolley frame 31. The lifting drive device 32 includes a drive motor, and a lifting drive shaft 321 is mounted on the drive motor to transmit power. The material is fed to the left and right sides of the multi-layer mold table. The left and right sides are connected to the mold table by a drive belt or lifting chain 322 to realize the vertical pulling movement of the multi-layer mold table. Bottom gear seats 323 and bottom gears 324 are set on the left and right sides of the bottom of the trolley frame 31. The top gear and bottom gear 324 are set on the lifting drive shaft 321 to realize the rotation of the lifting chain 322. Because there are pulling positioning rods 374 between the multi-layer mold tables, the minimum gap between the multi-layer mold tables is relatively stable while the lifting chain 322 realizes overall pulling.

[0033] The trolley frame 31 is provided with a longitudinal sliding push-pull part 33, and a longitudinal sliding platform 331 is provided on the longitudinal sliding push-pull part 33. A motor is provided on the top of the longitudinal sliding platform 331 as a push-pull drive part, and a longitudinal sliding guide rail 334 is provided on the bottom surface of the longitudinal sliding platform 331 as a push-pull guide part. A traction frame 333 is provided on the longitudinal sliding guide rail 334. A push-pull screw 332 is connected to the traction frame 333 through a slider. Under the drive of the push-pull drive part, the traction frame 333 moves longitudinally. The push-pull screw 332 drives the slider to move the traction frame 333 longitudinally. It should be noted that a vertical locking cylinder 36 is provided on the traction frame 333. Several vertical hooks 361 are vertically provided on the drive end of the vertical locking cylinder 36, and the multiple vertical hooks 361 are respectively provided for each layer of mold table. The vertical hooks are used to hook onto the hook groove 51 on the mold base plate 5. With the above structural configuration, this forming press 3 can receive the molds sent up by the ring conveyor line 1 one by one. During the receiving process, the lifting chain 322 drives the mold platform II 371 to move upward. Under the pull of the pulling positioning rod 374, the mold platform II 371 drives the mold platform III 372 and mold platform IV 373 to move upward. When the receiving height of the rear forming press 4 is reached, the mold base plate 5 is locked by the vertical hook 361. Then, the pulling frame 333 pushes the multi-layer molds to the rear forming press 4 at the same time or pulls the molds on the rear forming press to the mold platform. The above-mentioned multi-layer molds can be a matching mold group in the same product, or products of the same model or similar model in the same batch, etc. The purpose is to realize the same production.

[0034] Furthermore, this invention also includes a vertical guide section inside the trolley frame 31, which can be a raised track or a track groove. The purpose of this vertical guide section is to guide the vertical movement of the multi-layer mold platform and prevent tilting. Since the molding press 3 primarily relies on the weight of each layer of mold platforms to descend when the mold platform descends, this method suffers from asynchrony between the left and right sides. To improve this, this invention includes multiple vertical linkage cylinders 38 between the mold platform IV 373 and the trolley frame 31, arranged symmetrically on the left and right sides. These vertical linkage cylinders 38 are connected to the bottom mold platform and achieve linkage drive, combined with the traction positioning rod 374 to achieve vertical traction positioning.

[0035] Furthermore, each mold platform of the trolley frame 31 is equipped with a side guide wheel 311 and a bottom guide wheel 312, which work together to support and guide the mold base plate 5 when it moves in and out.

[0036] This utility model also includes a mold positioning plate 341 on the rear side of the trolley frame 31, and a telescopic drive cylinder 34 is provided in conjunction with the mold positioning plate 341. The mold positioning plate 341 blocks the mold to prevent it from coming off the multi-layer mold table. A wire support frame 314 is also provided on the rear side of the trolley frame 31 to cooperate with the outside to support the cable.

[0037] like Figure 8 , 9 As shown in Figures 10 and 11, the molding press 4 disclosed in this utility model includes a press frame 40. A vertical extrusion cylinder 47 is provided at the lower part or bottom end of the press frame 40. The vertical extrusion cylinder 47 applies force to the molding base plate 471. The molding base plate 471 vertically extrudes the multi-stage molding extrusion plate to realize the extrusion of the mold and the molding of the product.

[0038] The press frame 40 is internally equipped with a vertical extrusion guide rail 43 and a vertical positioning plate 49. The press frame 40 uses the vertical extrusion guide rail 43 to vertically guide the forming extrusion plate 45. The forming extrusion plate 45 is equipped with a sliding block 44 as a positioning stop. The sliding block 44 cooperates with the blocking area 491 on the vertical positioning plate 49 to achieve vertical limitation. The forming extrusion plate 45 is equipped with a guide wheel 451, which assists in the sliding of the mold base plate 5 when it enters.

[0039] Furthermore, the press frame 40 is also equipped with a telescopic functional module, which includes a telescopic drive cylinder 41. A functional unit 46 is provided at the end of the telescopic drive cylinder 41, and the functional unit 46 is plugged into and matched with the functional area on the mold. This functional area can realize actions such as pressing, vacuuming, and gluing of parts such as the pressing area and the gluing area.

[0040] This invention also includes a sensor 48 installed at one end of the die inlet of the molding press 4, which can prevent accidental extrusion during the upper and lower die processes.

[0041] Example 2: As Figure 1 As shown, when this utility model is in operation, multiple sets of molds are driven to rotate around on the annular conveyor line 1;

[0042] In this embodiment, two four-layer mold-changing trolleys 3 correspond to three thermoforming presses 4, and two cold forming presses 4 constitute a multi-layer integral mold-changing thermoforming and cold forming machine. The two four-layer mold-changing trolleys 3 are mold-changing trolley 1 3 and mold-changing trolley 2 3, as follows: Figure 1 , 2 As shown in the image, the left side represents mold-changing trolley number 1 (3), and the right side represents mold-changing trolley number 2 (3). Figure 1 In the middle, the three forming presses on the left are thermoforming presses 401, and the two forming presses on the right are cold forming presses 402.

[0043] The operation of the mold changing trolley 3 is as follows: When receiving molds from the circular conveyor line 1, the mold changing trolley 3 adopts a layer-by-layer mold receiving method. It is required to start receiving molds from the top layer. After receiving each layer of molds, the Z-axis rises 410mm to the same height before receiving the next layer of molds. To ensure precise control of the Z-axis rise, a high-precision displacement sensor is used in the Z-axis direction to ensure that the mold changing trolley 3 can smoothly receive molds and that each mold is sent into the press at the same height. After the mold changing trolley 3 has received four sets of molds, the Z-axis of the mold changing trolley 3 will pull the four sets of molds to the corresponding height. At this time, the horizontal traverse drive motor 35 brakes and locks. Then, after the Y-axis moves forward a short distance, the vertical locking cylinder 36 rises vertically, and the vertical hook 361 hooks the four sets of molds. Next, the mold-changing carriage 3 begins to move along the x-axis, moving to the front of the No. 1 200TL thermoforming press 4 and stopping. To ensure positioning accuracy, a combination of photoelectric switch and rotary encoder 313 is used for synchronous position detection and positioning. The longitudinal push-pull part 33 on the mold-changing carriage 3 is opened, and then along the Y-axis, all four molds are simultaneously pushed into the thermoforming press 401. After reaching their positions, the vertical locking cylinder 36 descends, simultaneously disengaging the four molds from the vertical hook 361, and the longitudinal push-pull part 33 retracts. The No. 1 mold-changing carriage 3 moves back to its original position, and the Z-axis descends to its lowest point, ready to receive the next batch of molds. The above actions are repeated continuously, delivering the molds to the No. 2 and No. 3 200TL thermoforming presses 401 respectively, returning to the original position after each mold delivery.

[0044] On the thermoforming press 401, after receiving the mold, the thermoforming press 401 moves from bottom to top and closes the four molds under pressure. After the molds are closed, the functional unit 46 at the back of the thermoforming press 401 is activated, automatically vacuuming and inserting the air blowing device into the standard tray to vacuum and blow air onto the molds. The mold closing, pressurizing, and heating process takes about 30 to 45 minutes. After the product is formed, the vacuum blowing device retracts and opens, and the press moves downwards again, opening each layer in place. It then waits for the second mold changing trolley 3 to transfer the mold to the corresponding cold forming press 401. After the second mold changing trolley 3 removes the mold, the first mold changing trolley 3 will send the mold back in.

[0045] Detailed description of the operation of the No. 2 mold changing trolley 3, when both cold forming presses 402 are unloaded:

[0046] The second mold-changing trolley 3 moves to the already formed and opened thermoforming press 401, and simultaneously reaches the correct height and position, opening the longitudinal sliding push-pull section 33; the second mold-changing trolley 3 moves to the thermoforming press 401, the vertical locking cylinder 36 rises vertically, the vertical hook 361 hooks the four molds, the second mold-changing trolley 3 pulls the four molds simultaneously from the thermoforming press 4 to the second mold-changing trolley 3, and the longitudinal sliding push-pull section 33 of the second mold-changing trolley 3 closes; the second mold-changing trolley 3 moves from the thermoforming press 401 station to the cold forming press 402 station; the longitudinal sliding push-pull section 33 on the second mold-changing trolley 3 opens; then in the Y-axis direction, the four molds are simultaneously pushed into the cold forming press 402, and after reaching the correct position, the vertical locking cylinder 36 descends, simultaneously disengaging the four molds from the vertical hook 361, and the longitudinal sliding push-pull section 33 retracts;

[0047] Detailed description of the operation of the No. 2 mold changing trolley 3, when both cold forming presses 402 are fully loaded:

[0048] The second mold-changing trolley 3 moves to the front of the nearest cold forming press 402 that is almost finished forming. In the first moment after the cold forming press 402 is opened, the second mold-changing trolley 3 moves along the Y-axis into the cold forming press 402. The vertical locking cylinder 36 rises vertically, and the vertical hook 361 hooks the four molds. The second mold-changing trolley 3 pulls the four molds from the cold forming press 402 into the trolley at the same time. The longitudinal push-pull part 33 on the second mold-changing trolley 3 closes. After it is in position, the vertical locking cylinder 36 descends, and at the same time, the four molds are disengaged from the vertical hook 361. The longitudinal push-pull part 33 retracts. The Z-axis of the second mold-changing trolley 3 descends to the bottom layer and is flush with the circular conveyor line 1. The push-pull mechanism on the circular conveyor line 1 takes out the molds layer by layer and transfers them to the circular conveyor line 1 until all the molds are cleared.

[0049] In summary, this invention utilizes a circular conveyor line to supply molds to the mold-changing trolley 3, which then groups and aggregates the molds before guiding them to the forming press 4. This invention boasts a high degree of automation; the entire process of mold raising and lowering, as well as mold aggregation and selection, can be semi-automatic or automatic. It enables synchronous production of complete sets of molds, improving production efficiency and product forming accuracy, increasing product yield, reducing manual operation, and lowering the probability of workplace accidents.

Claims

1. A multi-layer, single-die cold-hot forming machine, characterized in that: It includes a transverse moving track, two transverse and longitudinal driving die changing trolleys are arranged on the transverse moving track; the rear side of the die changing trolleys is provided with a plurality of forming presses, the inside of the forming presses is provided with a multi-layer structure, a die pulling frame is arranged on the die changing trolleys to realize multi-layer die supply; The bottom of the die changing trolleys is provided with a transverse moving guide part; the die changing trolleys include a trolley frame, a transverse moving driving device is arranged on the trolley frame, a plurality of multi-layer die tables are horizontally and interval arranged in the die changing trolleys, a pulling positioning rod is arranged between the multi-layer die tables, a lifting driving device is arranged on the trolley frame, the lifting driving device is connected with the die tables through a driving belt or a chain to realize vertical pulling movement of the multi-layer die tables; a longitudinal moving push-pull part is arranged on the trolley frame, a push-pull driving part and a push-pull guide part are arranged on the longitudinal moving push-pull part, a pulling frame is arranged on the push-pull guide part and moves longitudinally under the driving of the push-pull driving part; a vertical locking cylinder is arranged on the pulling frame, a plurality of vertical hooks are arranged on the driving end of the vertical locking cylinder to hook the die bottom plate.

2. The multi-layer, single-action cold and hot forming machine of claim 1, wherein: The forming presses include a press frame, a vertical extrusion cylinder is arranged at the lower part or the bottom end of the press frame, a vertical extrusion guide part and a vertical positioning plate are arranged in the press frame, the press frame realizes vertical guidance of a forming extrusion plate through the vertical extrusion guide part, a positioning blocking piece is arranged on the forming extrusion plate, and the positioning blocking piece cooperates with a blocking area on the vertical positioning plate to realize vertical limiting.

3. The multi-layer, single-action cold and hot forming machine of claim 1, wherein: The trolley frame is internally provided with a vertical linkage cylinder, the vertical linkage cylinder is connected with the bottommost die table and realizes linkage driving.

4. The multi-layer, single-action cold and hot forming machine of claim 1, wherein: The trolley frame is internally provided with a vertical guide part, and the vertical movement of the multi-layer die tables is guided through the vertical guide part.

5. The multi-layer, single-action cold and hot forming machine of claim 1, wherein: The die tables of the trolley frame are provided with side guide wheels and bottom guide wheels, and the entry and exit of the dies are guided through the cooperation of the side guide wheels and the bottom guide wheels.

6. The multi-layer, single-action cold and hot forming machine of claim 1, wherein: The rear side of the trolley frame is provided with a die positioning plate, a telescopic driving cylinder is arranged in cooperation with the die positioning plate, and the die positioning plate blocks the dies to prevent the dies from falling off the multi-layer die tables.

7. The multi-layer, integral, cold and hot forming machine of claim 2, wherein: The forming extrusion plate is provided with guide wheels, and the guide wheels realize auxiliary sliding of the dies when the dies enter.

8. The multi-layer, single-action cold and hot forming machine of claim 2, wherein: The press frame is provided with a telescopic function module, the telescopic function module includes a telescopic driving cylinder, a function unit is arranged at the end of the telescopic driving cylinder, and the function unit is plug-in matched with a function area on the die.

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