A sheet metal ornament processing platform for a refrigerator

Abstract

The application discloses a sheet metal ornament processing platform for a refrigerator, which comprises a lower die assembly, the lower die assembly comprises a die base and a die table placed in sequence from bottom to top, a stamping assembly is arranged on the die table, and a locking structure for locking positions of all the stamping assemblies is arranged on one side of the die assembly; the locking structure comprises a locking plate, a turnover assembly and a driving assembly, the turnover assembly is arranged between the locking plate and the die table, the turnover assembly controls the locking plate to ascend and turn over relative to the die table along a preset path, the driving assembly serves as a driving force of the turnover assembly, positioning holes are arranged on the stamping assembly, a plurality of locking pins matched with the positioning holes are arranged on the locking plate, and the locking pins are inserted into the positioning holes to position the stamping assembly when the locking plate is positioned to the locking position. According to the sheet metal processing of different sizes, the application sets a plurality of track grooves for placing the stamping assemblies, so that the user can fix the stamping assemblies in different track grooves according to different plate sizes and processing positions.

Description

Technical Field

[0001] This invention relates to the field of sheet metal decorative strip processing equipment, specifically to a sheet metal trim processing platform for refrigerators. Background Technology

[0002] Sheet metal parts are widely used in household appliances, primarily formed using stamping dies. In mass production, a single processing platform often needs to handle the production of two or more similar sheet metal decorative parts. For a given type of workpiece, the differences mainly lie in their dimensions, the number of processing parts, and the resulting variations in stamping or punching positions and numbers. For example, the metal panels or shells of refrigerators are formed by bending sheet metal. Before forming, the edges of the sheet metal workpiece need to be punched with different positions and numbers of holes. In traditional dies, the die cavity is fixed on the lower die plate, and the punch is fixed on the upper die plate. If traditional dies are used, different lower and upper dies need to be designed and manufactured separately so that the positions of the punch and punch holes are adapted to the dimensions of different workpieces. This significantly increases production costs and causes waste. Therefore, it is necessary to improve the die structure to accommodate dimensional variations of similar workpieces.

[0003] In view of the above, it is necessary to propose a sheet metal trim processing platform for refrigerators to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems and to provide a processing platform for sheet metal trim parts for refrigerators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sheet metal trim processing platform for refrigerators, including a lower mold assembly, the lower mold assembly including a mold base and a mold table placed sequentially from bottom to top, a stamping assembly provided on the mold table, a plurality of module stations for fixing the stamping assembly on the mold table, and a locking structure for locking the positions of all stamping assemblies on one side of the module station.

[0006] The module station includes multiple parallel track grooves, and the module station allows the stamping components to be slidably connected for installation or disassembly;

[0007] The locking structure includes a locking plate, a flipping component, and a driving component. The flipping component is disposed between the locking plate and the mold table. The flipping component controls the locking plate to rise, fall, and flip relative to the mold table along a preset path. The driving component serves as the driving force for the flipping component. The stamping component is provided with positioning holes. The locking plate is disposed on one side of the module station to simultaneously lock the stamping components in each module station. The locking plate is provided with multiple locking pins that cooperate with the positioning holes. When the locking plate is positioned to the locking position, the locking pins are inserted and cooperate in the positioning holes to position the stamping components.

[0008] Furthermore, the mold platform includes an upper platform and a support platform. The support platform includes multiple parallel support plates, and the upper platform is fixedly mounted on the multiple support plates.

[0009] Furthermore, the flipping assembly includes a track plate, a control arm, an upper sliding rod, and a lower sliding rod; the track plate passes longitudinally through and is fixed on the upper platform, the track plate is provided with a guide rail, a control arm that moves under the control of the guide rail is provided on one side of the track plate, the upper sliding rod and the lower sliding rod extend vertically from both sides of the control arm, the upper sliding rod is located in the middle arm of the control arm, the lower sliding rod is located at the lower end of the control part, the upper sliding rod and the lower sliding rod are slidably placed in the groove of the guide rail to cooperate, and the upper end of the control arm is fixedly connected to the locking plate.

[0010] Furthermore, a side plate is vertically provided on one side of the upper end of the track plate, the length of the sliding rod is greater than that of the upper sliding rod, the end of the sliding rod extends through the guide rail, and a spring is provided between the end of the sliding rod and the side plate.

[0011] Furthermore, the drive assembly includes a control cylinder, which is fixedly installed inside the mold platform between the support plates, and the free end of the control cylinder rod abuts against the lower end of the control arm.

[0012] Furthermore, the guide rail includes a straight rail and an arc rail. The guide rail is set through the track plate. The straight rail is set in the vertical direction, and the arc rail is set in a 1 / 4 arc. One end of the arc rail is connected to the upper end of the straight rail, and the other end of the arc rail is set towards the side away from the track groove.

[0013] Furthermore, the stamping assembly includes a lower die and an upper die. The lower die includes a lower support plate and a lower die base. The lower support plate cooperates with the track groove and is slidably placed in the track groove. The lower support plate is provided with an inner track, and the lower die base is slidably placed in the inner track. One end of the lower support plate is provided with a fixed upright plate, and the upper end face of the fixed upright plate is provided with a positioning hole.

[0014] Furthermore, the lower support plate is also rotatably connected to a drive screw, which is arranged along the length of the inner track. One end of the drive screw is rotatably connected to the middle of the fixed upright plate. The positioning hole is arranged on one side of the drive screw, and the lower part of the lower mold base is provided with a threaded groove that cooperates with the drive screw.

[0015] Furthermore, the lower die base is provided with a forming hole, and the forming hole is provided with a stop flange on both sides. The upper die is provided with a forming punch that mates with the forming hole. The lower die base is also provided with a guide rod, an elastic support, and a limiting rod. The upper die is provided with a guide sleeve that slides with the guide rod. The upper end of the elastic support abuts against the upper die for lifting the upper die and resetting it. The limiting rod passes through the upper die from top to bottom to limit the lifting of the upper die. The lower end of the limiting rod is screwed to the lower die base.

[0016] Furthermore, the mold platform is also equipped with a conveying roller structure and a robotic arm structure. The conveying roller structure includes a beam assembly that can be detachably installed on the upper platform. Several synchronous roller shafts are rotatably connected between the two beam assemblies. The upper end face formed by the several synchronous roller shafts is flush with the upper end face of the lower mold base. The robotic arm structure is equipped with a suction cup at its end. The robotic arm structure positions the sheet metal parts on the conveying roller structure through the suction cup.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention provides multiple track slots for placing stamping components according to different sizes of sheet metal processing, making it convenient for users to fix the stamping components in different track slots according to different sheet metal sizes and processing positions.

[0019] 2. The locking structure allows for quick fixing and unlocking of the positions of multiple stamping components, facilitating the replacement and adjustment of the stamping component positions.

[0020] 3. Each stamping assembly is equipped with a drive screw for adjusting the position of the lower die holder and the upper die. Rotating the drive screw can change the position of the lower die holder and the upper die, thereby changing the position of the hole to be machined on the sheet metal.

[0021] 4. The conveyor roller structure can move the sheet metal material to the stamping component and accurately stop the sheet metal on the stop flange to achieve accurate positioning of the sheet metal, which is convenient for stamping the correct holes on the sheet metal.

[0022] 5. Equipped with a robotic arm structure, it can move the sheet metal materials stacked on the loading station one by one to the conveyor roller structure, and after punching holes, it is easy to remove the sheet metal materials through the robotic arm structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a sheet metal trim processing platform for refrigerators according to this application;

[0024] Figure 2 An exploded view of a sheet metal trim processing platform for refrigerators according to this application;

[0025] Figure 3This is a schematic diagram of the mold table and stamping assembly in this application;

[0026] Figure 4 This is an exploded view of the stamping assembly in this application;

[0027] Figure 5 This is a cross-sectional view of the locking structure in the locked position in this application;

[0028] Figure 6 This is a cross-sectional view of the locking structure in the unlocked position in this application;

[0029] In the diagram: 1. Mold base; 2. Mold table; 3. T-slot; 4. Upper platform; 5. Support plate; 6. Support base plate; 7. U-shaped hole; 8. Stamping assembly; 9. Module station; 10. Locking structure; 11. Track groove; 12. Locking plate; 13. Tilting assembly; 14. Drive assembly; 15. Track plate; 16. Control arm; 17. Upper slide bar; 18. Lower slide bar; 19. Guide rail; 20. Straight rail; 21. Arc rail; 22. Positioning hole; 23. 24. Locking pin; 25. Side plate; 26. Spring; 27. Lower support plate; 28. Lower mold base; 29. ​​Upper mold; 30. Fixed upright plate; 31. Inner track; 32. Drive screw; 33. Forming hole; 34. Forming punch; 35. Stop flange; 36. Guide rod; 37. Elastic support component; 38. Limiting rod; 39. Guide sleeve; 40. Robotic arm structure; 41. Conveying roller structure; 42. Beam assembly; 43. Synchronous roller shaft; 44. Drive motor; 45. Suction cup part. Detailed Implementation

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] A sheet metal trim processing platform for refrigerators, such as Figure 1-6 As shown, the device includes a lower mold assembly, which comprises a mold base 1 and a mold platform 2 arranged sequentially from bottom to top. The upper surface of the mold base 1 has multiple parallel T-slots 3. The mold platform 2 includes an upper platform 4 and a support platform. The support platform includes multiple parallel support plates 5, and the upper platform 4 is fixedly mounted on the multiple support plates 5. Figure 1 , 2As shown; the bottom of the support plate 5 is fixedly set on the support base plate 6, so that the lower part of the mold table 2 forms a grid-like support structure. The overall position of the mold table 2 on the mold base 1 is adjustable. The side of the support base plate 6 is provided with a U-shaped hole 7. T-bolts that are used to cooperate with the T-shaped groove 3 pass through the U-shaped hole 7 and lock the position of the mold table 2 on the mold base 1 by bolts in the support plate 5. It can be understood that the mold base 1 can be extended in length and width according to customer needs, so as to facilitate the setting of multiple processing stations on the mold base 1. The mold table 2 is the processing station for processing sheet metal materials in this application.

[0032] Specifically, the mold table 2 is provided with a stamping component 8, and the mold table 2 is provided with multiple module stations 9 for fixing the stamping component 8. A locking structure 10 is provided on one side of the module station 9 to lock the position of all stamping components 8. Since it is necessary to enable a single pressurizing component to process holes of different sizes of sheet metal materials or different positions of sheet metal materials with different data, in this embodiment, each module station 9 is equipped with a stamping component 8, or a stamping component 8 can be set at the required stamping position. In actual use, it depends on the sheet metal style to be processed.

[0033] Specifically, the module station 9 includes multiple parallel track grooves 11, which allow the stamping assembly 8 to slide and connect for installation or disassembly; in some embodiments, the track grooves 11 can be L-shaped tracks, i.e., as shown in the figure. Figure 2 , 3 As shown, the L-shaped track is fixed upside down on the upper platform 4. The two L-shaped tracks are symmetrically arranged, and a track groove 11 is formed between the two L-shaped tracks for the sliding insertion of the stamping component 8. The L-shaped tracks on both sides are positioned in the width direction of the stamping component 8 and allow the stamping component to slide along the track groove 11 to change its position, thereby facilitating its installation or removal.

[0034] In this embodiment, a locking structure 10 is also required to lock the position of the stamping component 8. That is, during the stamping process of sheet metal material, the position of the stamping component 8 should be kept fixed so that it does not slide along the track groove 11. In order to facilitate the quick fixation of the stamping component 8 in each track groove 11, the locking structure 10 in this embodiment can lock the position of the stamping component 8 in each module station 9 at the same time.

[0035] Specifically, such as Figure 2 As shown, the locking structure 10 includes a locking plate 12, a flipping assembly 13, and a driving assembly 14. The flipping assembly 13 is disposed between the locking plate 12 and the mold table 2. The flipping assembly 13 includes a track plate 15, a control arm 16, an upper sliding rod 17, and a lower sliding rod 18.

[0036] The track plate 15 passes longitudinally through and is fixed to the upper platform 4. Guide rails 19 are provided on the track plate 15. The track plates 15 are arranged in pairs, and the guide rails 19 on the track plates 15 have the same trajectory. A certain interval is set between each pair of track plates 15, which is sufficient to accommodate the controlled movement of the control arm 16 within it. Specifically, the guide rail 19 includes a straight rail 20 and an arc-shaped rail 21. The guide rail 19 passes through the track plate 15. The straight rail 20 is arranged vertically, and the arc-shaped rail 21 is a quarter-circle arc. One end of the arc-shaped rail 21 is connected to the upper end of the straight rail 20, and the other end of the arc-shaped rail 21 is positioned away from the track groove 11. Figure 5 As shown. The control arm 16 is controlled by the trajectory of the guide rail 19. Specifically, the control arm 16 has an upper sliding rod 17 and a lower sliding rod 18 extending vertically on both sides. The upper sliding rod 17 and the lower sliding rod 18 are slidably placed in the groove of the guide rail 19. The upper sliding rod 17 is located in the middle arm of the control arm 16, and the lower sliding rod 18 is located at the lower end of the control part. The upper end of the control arm 16 is fixedly connected to the locking plate 12. Therefore, the controlled movement of the control arm 16 can further control the flipping or lifting movement of the locking plate 12. The drive assembly 14 serves as the driving force for the flipping assembly 13. In this embodiment, the control cylinder is used as the power element to drive the flipping assembly 13. The cylinder body is fixedly set on the support base plate 6, and the cylinder is located in the space between the support upright plates 5. The upper end of the control cylinder is a free end. The control cylinder controls the air rod to extend or retract in the vertical direction. The free end of the air rod of the control cylinder abuts against the lower end of the control arm 16.

[0037] In actual use, the stamping assembly 8 is provided with positioning holes 22, and the locking plate 12 is set on one side of the module station 9 to simultaneously lock the stamping assemblies 8 in each module station 9. The locking plate 12 is provided with multiple locking pins 23 that cooperate with the positioning holes 22. When the locking plate 12 is lowered to the locking position, the locking pins 23 are inserted and engaged in the positioning holes 22 to position the stamping assembly 8. In the actual control process of the locking plate 12, the locking plate 12 has a locked position and an unlocked position. The locked position is when the locking plate 12 is lowered, so that the locking pins 23 are inserted into the positioning holes 22, thereby fixing the position of the stamping assembly 8.

[0038] like Figure 5 , 6As shown, the lifting process of the control arm 16 by the control cylinder is divided into a vertical lifting section and a swing movement section. Since the guide rail 19 includes a straight rail 20, when the upper slide rod 17 and the lower slide rod 18 are both located in the straight rail 20, the control arm 16 is controlled by the upper slide rod 17, the lower slide rod 18 and the straight rail 20 during lifting, so that the control arm 16 moves vertically. That is, the locking plate 12 is controlled by the control arm 16 to rise or fall in the vertical direction. In this movement step of the locking plate 12 rising and falling vertically, the locking pin 23 is inserted into or removed from the positioning hole 22 to lock and unlock the stamping assembly 8. Furthermore, as the control cylinder continues to lift the control arm 16 upward, the upper slide rod 17 enters the arc-shaped track 21, causing the control arm 16 to swing at a certain angle in the direction of the arc-shaped track 21. When the control arm 16 swings, it controls the locking plate 12 to achieve a flipping motion, so that the front part of the locking plate 12 moves vertically upward and the rear part moves to flip open, thereby allowing the stamping assembly 8 to be fully exposed, making it convenient for the operator to make technical adjustments to the stamping assembly 8.

[0039] Since the trajectory direction of the arc track 21 is set away from the track groove 11, the locking plate 12 can be flipped open to a large extent, so that there is a large operating space at the track groove 11. In actual use, multiple sets of locking plates 12 can be set. Each set of locking plates 12 is moved by a control arm 16, and the synchronous extension and retraction of the control cylinder is used to facilitate the stable lifting, lowering and flipping movement of the locking plate 12.

[0040] In this embodiment, a spring 25 is used to automatically reset the locking plate 12 back to the locking position of the stamping assembly 8. Specifically, a side plate 24 is vertically provided on one side of the upper end of the track plate 15. When the track plates 15 are arranged in pairs, each of the two track plates 15 has a side plate 24 on the upper end of the side away from each other. The side plates 24 on both sides extend in opposite directions. The length of the sliding rod 18 is greater than that of the upper sliding rod 17, so that the end of the sliding rod 18 extends through the guide rail 19. The upper sliding rod 17 is shorter, so that its end can only be placed in the guide rail 19 and will not extend out. In this embodiment, a spring 25 is provided between the end of the sliding rod 18 and the side plate 24. As the control cylinder pushes the control arm 16 upward, the upper sliding rod 17 and the sliding rod 18 move along the direction of the guide rail 19. The upper sliding rod 17 first rises along the straight rail 20 and then enters the arc-shaped rail 21, while the sliding rod 18 always stays in the straight rail 20. When the control cylinder pushes upward, the spring 25 is compressed by the sliding rod 18. The locking plate 12 is raised and rotated at a certain angle, which facilitates the replacement of the stamping assembly 8. Then, the control cylinder retracts, releasing the spring 25 and pushing the sliding rod 18 to control the locking plate 12 to rotate in the opposite direction to a horizontal position, and then fall vertically. It can be understood that the advantage of using the spring 25 to lock the plate 12 in this embodiment is that, in actual use, if the stamping assembly 8 is not placed accurately, the locking pin 23 and the positioning hole 22 will be misaligned when the locking plate 12 is in place, which will jam the locking plate 12. The spring 25 can stop the movement of the locking plate 12 at this time, and the operator can fine-tune the position of the stamping assembly 8 to align the positioning hole 22 and the locking pin 23. Then, the spring 25 continues to release to control the locking plate 12 to fall into the locked position. If the control arm 16 and the control cylinder are connected by a hinge, which is a rigid power transmission method, it is very easy to cause damage to the equipment. In contrast, the reset technology of the spring 25 can interrupt the power in the middle and avoid equipment damage.

[0041] like Figure 4 As shown, the stamping assembly 8 includes a lower die and an upper die 28. The lower die includes a lower support plate 26 and a lower die base 27. The lower support plate 26 cooperates with the track groove 11 and is slidably placed in the track groove 11. An inverted T-shaped track is formed in the track groove 11. The cross-sectional shape of the lower support plate 26 is matched with the track groove 11, so the lower die can move along the track groove 11. One end of the lower support plate 26 is provided with a fixed upright plate 29. The upper end face of the fixed upright plate 29 is provided with a positioning hole 22. During installation, the positioning hole 22 on the fixed upright plate 29 cooperates with the locking pin 23 to realize the positioning of the lower support plate 26.

[0042] The lower support plate 26 is provided with an inner rail 30, and the lower mold base 27 is slidably disposed within the inner rail 30. In actual use, since the distance between the hole and the side varies at different drilling positions, the inner rail 30 in this embodiment is provided in the lower support plate 26 to adjust the overall position of the lower mold base 27 and the upper mold 28, thereby changing the distance between the drilling position and the side. Specifically, the lower support plate 26 is also rotatably connected with a drive screw 31, which is arranged along the length direction of the inner rail 30. One end of the drive screw 31 is rotatably connected to the middle of the fixed upright plate 29. The positioning hole 22 is disposed on one side of the drive screw 31, and the lower part of the lower mold base 27 is provided with a threaded groove that cooperates with the drive screw 31. In this embodiment, the drive screw 31 is fitted to the bottom surface of the lower support plate 26, while the bottom surface of the lower mold base 27 is provided with a semi-circular threaded groove. During installation, the drive screw 31 engages with the threaded groove on one side. By controlling the rotation of the drive screw 31, the positions of the lower mold base 27 and the upper mold 28 on the lower support plate 26 can be changed, thereby changing the drilling position on the sheet metal material.

[0043] The lower die base 27 is provided with a forming hole 32, and the upper die 28 is provided with a forming punch 33 that cooperates with the forming hole 32. The upper die 28 is pressed down by the press, so that the forming punch 33 is pressed into the forming hole 32, thereby punching the sheet metal profile out of the predetermined hole. The forming hole 32 is provided with a stop flange 34 on both sides. The stop flange 34 protrudes from the lower die base 27 and is set in an inverted L shape. The stop flange 34 is located on the rear side of the forming hole 32. When the sheet metal profile moves toward the forming hole 32, the stop flange 34 blocks the edge of the sheet metal profile to form a positioning of the sheet metal material. Then the upper die 28 is pressed down to complete the punching.

[0044] The lower mold base 27 is also provided with a guide rod 35, an elastic support 36, and a limiting rod 37; the upper mold 28 is provided with a guide sleeve 38 that slides with the guide rod 35; the upper end of the elastic support 36 abuts against the upper mold 28 for lifting the upper mold 28 to reset; the limiting rod 37 passes through the upper mold 28 from top to bottom to limit the lifting of the upper mold 28; the lower end of the limiting rod 37 is screwed to the lower mold base 27; in actual use, the elastic support 36 can be a nitrogen spring 25, and the guide rod 35 and the elastic support 36 are each provided with There are two guide rods 35, which are diagonally positioned. The guide rods 35 are inserted into the guide sleeves 38 and guide the upper mold 28 as it moves up and down. During the downward punching process of the upper mold 28, the elastic support 36 is compressed, and then the upper mold 28 is lifted up and reset by the elastic support 36. The limiting rod 37 is located in the middle of the lower mold base 27 and passes downward from the middle of the upper mold. The lower end of the limiting rod 37 is screwed to the lower mold base 27. When the elastic support 36 pushes the upper mold 28 upward, the limiting rod 37 limits its rising height and prevents it from coming off the guide rods 35.

[0045] Furthermore, the mold table 2 is also equipped with a conveying roller structure 40 and a robotic arm structure 39. The conveying roller structure 40 includes a beam assembly 41 detachably mounted on the upper platform 4. Several synchronous roller shafts 42 are rotatably connected between the two beam assemblies 41. A drive motor 43 is provided at the end of the beam assembly 41. The drive motor 43 simultaneously drives all synchronous roller shafts 42 to rotate. The rotation direction of the roller shafts causes the sheet metal material placed on them to move towards the stamping assembly 8. The sheet metal is conveyed to the stamping assembly 8 by the synchronous roller shafts 42. The upper end surface formed by the several synchronous roller shafts 42 is flush with the upper end surface of the lower mold base 27, thereby making the sheet metal... The edge of the metal material can be directly moved onto the lower mold base 27; the end of the robotic arm structure 39 is provided with a suction cup 44, and the robotic arm structure 39 uses the suction cup 44 to position the sheet metal part on the conveying roller structure 40. In actual use, the robotic arm uses rotation and the suction cup 44 to pick up the sheet metal material, and then precisely positions the sheet metal material on the conveying roller structure 40; it can be understood that in this embodiment, since the setting of the conveying roller structure 40 blocks one end of the track groove 11, the conveying roller structure 40 can be removed when changing the position of the stamping assembly 8, and the stamping assembly 8 can be replaced from the end close to the conveying roller structure 40.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sheet metal trim processing platform for refrigerators, comprising a lower mold assembly, the lower mold assembly comprising a mold base and a mold table arranged sequentially from bottom to top, the mold table being provided with a stamping assembly, characterized in that, The mold table is provided with a module station for fixing the stamping components, and a locking structure for locking the positions of all stamping components is provided on one side of the module station. The module station includes multiple parallel track grooves. The module station allows the stamping components to be slidably connected for installation or disassembly. Depending on the different sheet metal sizes and processing positions, the stamping components are fixed in different track grooves. The locking structure includes a locking plate, a flipping component, and a driving component. The flipping component is disposed between the locking plate and the mold table. The flipping component controls the locking plate to rise, fall, and flip relative to the mold table along a preset path. The driving component serves as the driving force for the flipping component. The stamping component is provided with positioning holes. The locking plate is disposed on one side of the module station for simultaneously locking the stamping components in each module station. The locking plate is provided with multiple locking pins that cooperate with the positioning holes. When the locking plate is positioned to the locking position, the locking pins are inserted and cooperate in the positioning holes to position the stamping components. The mold platform includes an upper platform and a support platform. The support platform includes multiple parallel support plates, and the upper platform is fixedly mounted on the multiple support plates. The flipping assembly includes a track plate, a control arm, an upper slide rod, and a lower slide rod. The track plate passes longitudinally through and is fixed to the upper platform. The track plate is provided with a guide rail. A control arm that moves under the control of the guide rail is provided on one side of the track plate. The upper slide rod and the lower slide rod extend vertically from both sides of the control arm. The upper slide rod is located in the middle of the control arm, and the lower slide rod is located at the lower end of the control arm. Both the upper slide rod and the lower slide rod are slidably placed in the guide rail and cooperate with the groove in the guide rail. The upper end of the control arm is fixedly connected to a locking plate. A side plate is vertically provided on one side of the upper end of the track plate; the length of the sliding rod is greater than that of the upper sliding rod; the end of the sliding rod extends through the guide rail; and a spring is provided between the end of the sliding rod and the side plate. The drive assembly includes a control cylinder, which is fixedly installed inside the mold platform between the support plates, and the free end of the cylinder rod abuts against the lower end of the control arm. The guide rail includes a straight rail and an arc rail. The guide rail is set through the track plate. The straight rail is set in the vertical direction, and the arc rail is set in a 1 / 4 arc. One end of the arc rail is connected to the upper end of the straight rail, and the other end of the arc rail is set towards the side away from the track groove.

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