A flanging die with a belt guide plug support

Abstract

The application relates to a flange die for a belt guide rail plug support, which comprises an upper die and a lower die, a plurality of die sets are arranged between the upper die and the lower die, the plurality of die sets are sequentially arranged from a workpiece feeding end to a discharging end and are a punching cutting die set, a pre-flange die set and a bending die set, the pre-flange die set comprises a plurality of first supporting blocks arranged on the lower die, the upper die is provided with a plurality of pre-flange blocks corresponding to the plurality of first supporting blocks, and the flange angles of the plurality of pre-flange blocks are sequentially increased from the workpiece feeding end to the discharging end. The application has the effect of improving the production efficiency of the belt guide rail plug support.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a folding mold with belt guide rail plug support. Background Technology

[0002] Belt guide plugs are crucial components in automotive engine and air conditioning compression systems. Their core function is to provide a stable guiding and supporting structure for the drive belt, ensuring precise positioning during high-speed operation and preventing slippage, misalignment, or accelerated wear. (Refer to...) Figure 1 A belt guide rail plug support includes a plate 01, with folded edge sections 02 provided on both opposite sides of the plate.

[0003] In the prior art, before stamping a belt guide plug, it is necessary to use stamping parts and hydraulic devices to sequentially cut raw material plates of specific shapes from the raw steel plate. The stamped raw material plates are then conveyed by a conveyor device to be moved sequentially to the bottom of stamping dies of different shapes for gradual stamping and bending until the finished product supporting the belt guide plug is formed.

[0004] However, the existing processing methods require stamping the raw materials sequentially using multiple molds in a processing order. Different molds need to be changed when processing different steps of the belt guide plug support, resulting in low production efficiency and obvious shortcomings of the belt guide plug support. Utility Model Content

[0005] To improve the production efficiency of belt guide rail plug supports, this application provides a folding mold for belt guide rail plug supports.

[0006] The folding mold for a belt guide rail plug support provided in this application adopts the following technical solution:

[0007] A folding die supported by a belt guide rail includes an upper die and a lower die. Multiple modules are arranged between the upper die and the lower die. The multiple modules are arranged sequentially along the direction from the workpiece inlet to the outlet as a punching and cutting module, a pre-folding module, and a bending module. The pre-folding module includes multiple first support blocks arranged on the lower die. The upper die is provided with pre-folding blocks that correspond one-to-one with the multiple first support blocks. The folding angle of the multiple pre-folding blocks increases sequentially along the direction from the workpiece inlet to the outlet.

[0008] By adopting the above technical solution, when the workpiece needs to be processed, the raw material is placed between the upper and lower dies. During the movement of the raw material steel plate, the punching and cutting module first cuts and punches the raw material, then the pre-folding module folds the raw material multiple times, and finally the bending module bends the two ends of the raw material to the finished product state, thereby obtaining the finished product of the belt guide rail plug support. In this way, the belt guide rail plug support is carried out in one production process, and the whole process does not require multiple changes of different dies, thereby improving the production efficiency of the belt guide rail plug support.

[0009] Optionally, the bending module includes a second support block disposed on the lower die, a bending block disposed on the upper die that cooperates with the second support block, forming blocks slidably connected to opposite sides of the second support block, and a driving component disposed on the upper die and the lower die. When the upper die and the lower die are closed, the driving component drives the two forming blocks to move toward the second support block.

[0010] By adopting the above technical solution, when the raw material moves to the bending module, the drive component synchronously moves the two forming blocks toward the second support block. During the movement of the forming blocks, the two ends of the raw material are pushed toward the second support block, and finally the two ends of the raw material are pressed between the forming block and the second support block. This achieves simultaneous bending and forming of the two ends of the raw material, effectively reducing the possibility of workpiece displacement, torsion deformation and other problems caused by unilateral force, thereby improving the consistency of the bending angle of the belt guide rail plug support.

[0011] Optionally, the driving assembly includes a first driving block disposed on the molding block, a second driving block disposed on the upper mold corresponding one-to-one with the two first driving blocks, an inclined surface disposed on the first driving block and the second driving block, the inclined surface being inclined from bottom to top along a direction close to the central axis of the second support block, and a reset member disposed on the lower mold for driving the first driving block to reset.

[0012] By adopting the above technical solution, when the upper mold is pressed down, the second driving block and the first driving block slide against each other, so that the first driving block moves towards the second support block under the push of the second driving block. At this time, the first driving block drives the forming block to perform a bending operation. In this way, the vertical mold closing motion of the upper and lower molds is transformed into the horizontal motion of the forming block, realizing the synchronous drive of the mold closing process and the bending operation of the forming block, thereby eliminating the need for an additional drive source and improving the transmission efficiency.

[0013] Optionally, the lower mold is provided with a guide rail that slides with the first driving block, the second driving block is provided with a connecting rod, the end of the connecting rod is provided with a guide block, and the first driving block is provided with a guide groove that slides with the guide block.

[0014] By adopting the above technical solution, the sliding cooperation between the guide rail and the first driving block and the sliding cooperation between the guide block and the guide groove effectively restricts the movement direction of the forming block, ensuring that the forming block moves smoothly along the preset trajectory toward the central axis of the second support block, thereby ensuring the smooth progress of the bending process.

[0015] Optionally, the first drive block is provided with a receiving groove for placing the molding block, and the molding block is detachably connected to the first drive block via a connecting component.

[0016] By adopting the above technical solution, when it is necessary to process belt guide rail plug support parts of different specifications or shapes, it is only necessary to disassemble the connecting components to quickly replace the forming blocks of the corresponding size and shape, without the need for large-scale modification of the entire mold, thus improving the applicability of the mold.

[0017] Optionally, the connecting assembly includes a plurality of connecting bolts, the ends of which pass through the molded block and are threadedly connected to the first drive block.

[0018] By adopting the above technical solution, workers only need to remove the connecting bolts to replace the molding block on the first drive block.

[0019] Optionally, the connecting assembly includes a pin cylinder, the first driving block and the forming block are provided with through grooves that slide with the pin cylinder, the first driving block is provided with an insertion groove that inserts with the pin cylinder, the inner sidewall opposite to the pin cylinder is provided with a limiting groove, an insertion block is slidably connected in the limiting groove, the inner sidewall opposite to the insertion groove is provided with a fastening groove that inserts with the insertion block, and the pin cylinder is provided with a control assembly that drives the insertion block to insert into or disengage from the fastening groove.

[0020] By adopting the above technical solution, when it is necessary to replace the molding block, the worker first uses the control component to make the plug block disengage from the fastening groove, and then the pin cylinder can be pulled out from the through groove and the plug groove, so as to realize the quick separation of the molding block and the first driving block; during installation, the pin cylinder is inserted into the through groove and pushed into the plug groove, and then the control component drives the plug block to be inserted into the fastening groove, thereby realizing the connection between the molding block and the first driving block.

[0021] Optionally, the control component includes an operating rod that slides through the inside of the pin cylinder, a push-receiving inclined surface that slides with the end of the operating rod on the plug block, a limiting groove on the bottom wall of the pin cylinder, a limiting block that slides with the limiting groove on each plug block, and a return spring at each opposite end of the limiting groove. The return spring pushes the plug block away from the fastening groove. A fastening bolt is threaded to the top of the pin cylinder, and the end of the fastening bolt abuts against the top of the operating rod. When the fastening bolt is tightened, the bottom surface of the operating rod abuts against the bottom wall of the pin cylinder, and the two plug blocks are inserted into the fastening groove.

[0022] By adopting the above technical solution, when connecting and fixing the forming block, tightening the fastening bolt will push the operating rod downward. The inclined surface at the end of the operating rod interacts with the pushed inclined surface on the insertion block, overcoming the elastic force of the return spring, and driving the insertion block to slide along the limiting groove and insert into the fastening groove, thereby firmly fixing the forming block on the first driving block, ensuring that the forming block will not be displaced during the folding process, and effectively improving the folding accuracy and stability.

[0023] When it is necessary to disassemble the molding block, loosen the fastening bolts. Under the action of the return spring, the plug block automatically disengages from the fastening groove. During the reset process of the plug block, it pushes the operating rod upward. Then, the worker removes the plug cylinder from the through groove, thereby separating the molding block from the first drive block. The setting of the control component allows the worker to install and disassemble the molding block only on the surface of the first drive block, simplifying the assembly and disassembly steps of the molding block and improving the convenience of worker operation.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] This embodiment of the application sets up a punching and cutting module, a pre-folding module, and a bending module. When the workpiece needs to be processed, the raw material is placed between the upper and lower dies. During the movement of the raw material steel plate, the punching and cutting module first cuts and punches the raw material, then the pre-folding module folds the raw material multiple times, and finally the bending module bends the two ends of the raw material to the finished product state, thereby obtaining the finished product of the belt guide rail plug support. In this way, the belt guide rail plug support is carried out in one production process, and the whole process does not require multiple changes of different dies, thereby improving the production efficiency of the belt guide rail plug support.

[0026] In this embodiment, a driving component is provided. When the upper mold is pressed down, the second driving block and the first driving block slide against each other, so that the first driving block moves towards the second support block under the push of the second driving block. At this time, the first driving block drives the forming block to perform a bending operation. In this way, the vertical mold closing motion of the upper and lower molds is converted into the horizontal motion of the forming block, realizing the synchronous driving of the mold closing process and the bending operation of the forming block, thereby eliminating the need for an additional driving source and improving the transmission efficiency.

[0027] This application embodiment, by setting a connecting component, allows for the quick replacement of the corresponding size and shape molding block when different specifications or shapes of belt guide rail plug support parts need to be processed, simply by disassembling the connecting component. This eliminates the need for large-scale modifications to the entire mold, thus improving the mold's applicability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the belt guide rail plug support in the background technology of this application.

[0029] Figure 2 This is a cross-sectional view of the lower mold and the upper mold in Embodiment 1 of this application.

[0030] Figure 3 This is a schematic diagram of the lower mold structure in Embodiment 1 of this application.

[0031] Figure 4 This is a schematic diagram of the upper mold in Embodiment 1 of this application.

[0032] Figure 5 This is a vertical sectional view of the lower mold and the upper mold in Embodiment 1 of this application.

[0033] Figure 6 This is a schematic diagram of the structure of the driving component in Embodiment 1 of this application.

[0034] Figure 7 This is a cross-sectional view of the molding block and the first driving block in Embodiment 2 of this application.

[0035] Figure 8 yes Figure 7 Enlarged view of point A in the middle.

[0036] Explanation of reference numerals in the attached drawings: 01, plate; 02, folded edge section; 1, upper die; 2, lower die; 21, guide rail; 22, connecting plate; 3, punching and cutting module; 31, punched part; 32, cut part; 4, pre-folding module; 41, first support block; 42, pre-folding block; 5, bending module; 51, second support block; 52, bending block; 53, forming block; 6, driving assembly; 61, first driving block; 611, guide groove; 62, second driving block; 621. Connecting rod; 6211. Guide block; 7. Connecting assembly; 71. Pin cylinder; 711. Limiting groove; 712. Groove; 713. Restricting groove; 72. Insertion block; 721. Push-loaded inclined surface; 722. Restricting block; 8. Reset component; 9. Receiving groove; 10. Through groove; 11. Insertion groove; 111. Fastening groove; 12. Control assembly; 121. Operating rod; 1211. Protrusion; 122. Return spring; 123. Fastening bolt. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0038] This application discloses a folding mold for belt guide rail plug support. Example

[0039] Reference Figure 2 , Figure 3 and Figure 4 A folding die supported by a belt guide rail includes an upper die 1 and a lower die 2. Multiple modules are arranged between the upper die 1 and the lower die 2. The multiple modules are arranged sequentially along the direction from the workpiece feeding end to the discharging end as a punching and cutting module 3, a pre-folding module 4, and a bending module 5. The punching and cutting module 3 includes multiple punching parts 31 and cutting parts 32 installed on the upper die 1. The punching parts 31 and cutting parts 32 are existing technologies and will not be described in detail in this embodiment.

[0040] Reference Figure 2 , Figure 3 and Figure 4 The pre-folding module 4 includes a plurality of first support blocks 41 installed on the lower mold 2. In this embodiment, there are three first support blocks 41. The upper mold 1 is equipped with pre-folding blocks 42 that correspond one-to-one with the three first support blocks 41. The folding angle of the three pre-folding blocks 42 increases sequentially along the direction from the workpiece feeding end to the discharging end. When the upper mold 1 is pressed down, the pre-folding blocks 42 move toward the workpiece on the lower mold 2. When the pre-folding blocks 42 move, they push the workpiece to a state of contact with the first support blocks 41, thereby realizing the pre-folding of the workpiece.

[0041] Reference Figure 2 , Figure 3 and Figure 4The bending module 5 includes a second support block 51 installed on the lower die 2. The second support block 51 is integrally formed with the first support block 41 near the discharge end. A bending block 52 that cooperates with the second support block 51 is installed on the upper die 1. A forming block 53 is slidably connected to the two opposite sides of the second support block 51 along the width direction.

[0042] Reference Figure 3 , Figure 4 and Figure 5 The upper mold 1 and the lower mold 2 are provided with a drive assembly 6. The drive assembly 6 includes a first drive block 61 that is detachably connected to the molding block 53 via a connecting assembly 7. The lower mold 2 is equipped with a guide rail 21 that slides with the first drive block 61. The length direction of the guide rail 21 is parallel to the width direction of the lower mold 2. Under the restriction of the guide rail 21, the first drive block 61 can only move along the width direction of the lower mold 2.

[0043] Reference Figure 4 , Figure 5 and Figure 6 The upper mold 1 is equipped with a second driving block 62 that corresponds one-to-one with the two first driving blocks 61. The first driving block 61 and the second driving block 62 are provided with inclined surfaces (not shown in the figure) that slide with each other. The inclined surfaces are inclined from bottom to top along the direction close to the central axis of the second support block 51. A connecting rod 621 is installed on the second driving block 62. A guide block 6211 is fixedly connected to the end of the connecting rod 621. A guide groove 611 that slides with the guide block 6211 is opened on the first driving block 61. The guide groove 611 is inclined.

[0044] When the workpiece needs to be processed, the raw material is placed between the upper die 1 and the lower die 2. During the movement of the raw material, the upper die 1 and the lower die 2 repeatedly perform die closing and opening operations. The punching and cutting die 3 cuts and punches the raw material. After the raw material is cut and punched, it moves to the pre-folding die 4. The upper die 1 drives the three pre-folding blocks 42 to press down synchronously. The pre-folding blocks 42 cooperate with the first support block 41 to pre-fold the edges at both ends of the raw material. When the pre-folding die 4 moves to the vicinity of the bending die 5, the upper die 1 presses down again. The inclined surfaces of the second driving block 62 and the first driving block 61 slide against each other, so that the first driving block 61 slides against the second driving block 62. Driven by the first driving block 61, the forming block 53 moves toward the second support block 51. During the movement of the forming block 53, the two ends of the raw material are pushed toward the second support block 51, and finally the two ends of the raw material are pressed against the forming block 53 and the second support block 51. This achieves simultaneous bending and forming of the two ends of the raw material. After the bending operation is completed, the finished product of the belt guide rail 21 plug support is obtained. This allows the belt guide rail 21 plug support to be carried out in one production process. The whole process does not require multiple changes of different molds, thereby improving the production efficiency of the belt guide rail 21 plug support.

[0045] Reference Figure 4 , Figure 5 and Figure 6 The lower mold 2 is provided with a reset component 8 that drives the first drive block 61 to reset. The reset component 8 is a nitrogen spring, which is embedded inside the first drive block 61. The lower mold 2 is equipped with a connecting plate 22 that corresponds one-to-one with the two first drive blocks 61. The two connecting plates 22 are respectively located on opposite sides of the second support block 51 along the width direction. The end of the nitrogen spring away from the first drive block 61 is connected to the connecting plate 22. In the natural state of the nitrogen spring, the first drive block 61 is located at the end of the guide rail 21 away from the second support block 51.

[0046] When the upper mold 1 and the lower mold 2 are closed, the pressure on the nitrogen spring disappears, and the nitrogen spring pushes the first drive block 61 to move away from the second support block 51 so that the next bending operation can be carried out smoothly.

[0047] Reference Figure 4 , Figure 5 and Figure 6 The first drive block 61 has a receiving groove 9, and the forming block 53 is placed inside the receiving groove 9. The connecting component 7 includes two connecting bolts (not shown in the figure). The ends of the two connecting bolts pass through the forming block 53 and are threadedly engaged with the first drive block 61. The connecting bolts are located on the surface of the forming block 53 near the second support block 51.

[0048] When it is necessary to process belt guide rail 21 plug support parts of different specifications or shapes, the worker uses tools to disassemble the connecting bolts. Then the worker takes out the forming block 53 from the first drive block 61 to disassemble. Next, the worker places the forming block 53 of the corresponding size and shape into the receiving groove 9 and tightens the connecting bolts to install.

[0049] The implementation principle of the folding mold supported by the belt guide rail in this embodiment is as follows: When the workpiece needs to be processed, the raw material is placed between the upper mold 1 and the lower mold 2. During the movement of the raw material, the upper mold 1 and the lower mold 2 repeatedly perform mold closing and mold opening operations. The punching and cutting module 3 cuts and punches the raw material. After the raw material is cut and punched, it moves to the pre-folding module 4. The upper mold 1 drives the three pre-folding blocks 42 to press down synchronously. The pre-folding blocks 42 cooperate with the first support block 41 to pre-fold the edges of both ends of the raw material. When the pre-folding module 4 moves to the vicinity of the bending module 5, the upper mold 1 presses down again. The inclined surfaces of the second driving block 62 and the first driving block 61 slide against each other, so that the first driving block 62... Driven by the second driving block 62, the moving block 61 moves toward the direction of the second support block 51. At this time, the first driving block 61 drives the forming block 53 to move toward the second support block 51. During the movement of the forming block 53, it pushes the two ends of the raw material toward the second support block 51 and finally abuts the two ends of the raw material between the forming block 53 and the second support block 51. This achieves the simultaneous bending and forming of the two ends of the raw material. After the bending operation is completed, the finished product of the belt guide rail 21 plug support is obtained. This allows the belt guide rail 21 plug support to be carried out in one production process. The whole process does not require multiple changes of different molds, thereby improving the production efficiency of the belt guide rail 21 plug support. Example

[0050] The difference between this embodiment and Embodiment 1 is that the connecting component 7 includes a pin cylinder 71, and the first driving block 61 and the forming block 53 are provided with a through groove 10 that slides with the pin cylinder 71. The bottom surface of the first driving block 61 is provided with an insertion groove 11 that is inserted into the bottom end of the pin cylinder 71. After the forming block 53 is placed inside the receiving groove 9, the worker passes the pin cylinder 71 through the through groove 10 and inserts it into the insertion groove 11, thereby achieving pre-fixation of the forming block 53.

[0051] Reference Figure 7 and Figure 8The pin cylinder 71 has a limiting groove 711 on its radially opposite inner sidewall. The limiting groove 711 is perpendicular to the axis of the pin cylinder 71. Each limiting groove 711 is slidably connected to a plug block 72. The inner sidewall of the plug groove 11 is provided with a fastening groove 111 that is plugged into the plug block 72. In this embodiment, an indicator strip (not shown in the figure) is connected to the outer surface of the pin cylinder 71. The inner sidewall of the through groove 10 and the plug groove 11 is provided with an indicator groove (not shown in the figure) that is slidably engaged with the indicator strip. By inserting the indicator strip into the indicator groove, the fastening groove 111 and the limiting groove 711 are directly connected.

[0052] Reference Figure 7 and Figure 8 A control component 12 is provided on the pin cylinder 71. The control component 12 includes an operating rod 121 that slides through the inside of the pin cylinder 71. The operating rod 121 is coaxially arranged with the pin cylinder 71. A protrusion 1211 is installed on the outer surface of the operating rod 121. A groove 712 is provided on the inner side wall of the pin cylinder 71 to slide with the protrusion 1211. The groove 712 is parallel to the axial direction of the pin cylinder 71. Under the guidance of the groove 712 and the protrusion 1211, the operating rod 121 can only slide along the axial direction of the pin cylinder 71.

[0053] Reference Figure 7 and Figure 8 Each plug block 72 has a push-receiving inclined surface 721 on its end face near the axis of the pin cylinder 71, which slides with the end of the operating rod 121. The end of the operating rod 121 near the plug block 72 is tapered. A limiting groove 713 is provided on the inner bottom wall of the pin cylinder 71, which is parallel to the radial direction of the pin cylinder 71. Each plug block 72 is connected to a limiting block 722 that slides with the limiting groove 713. A return spring 122 is provided at both opposite ends of the limiting groove 713. One end of the return spring 122 is fixedly connected to the inner side wall of the limiting groove 713 away from the axis of the pin cylinder 71, and the other end is fixedly connected to the limiting block 722. The elastic force of the return spring 122 pushes the plug block 72 away from the fastening groove 111.

[0054] Reference Figure 7 and Figure 8 The top of the pin cylinder 71 is threaded with a fastening bolt 123. The end of the fastening bolt 123 abuts against the top of the operating rod 121. When the fastening bolt 123 is tightened, the bottom surface of the operating rod 121 abuts against the inner bottom wall of the pin cylinder 71, and the two plug blocks 72 are inserted into the fastening groove 111.

[0055] The implementation principle of Example 2 is as follows: When it is necessary to disassemble the old molding block 53, the worker first loosens the fastening bolt 123. The pushing force of the bottom end of the operating rod 121 on the plug block 72 gradually decreases. Under the action of the reset spring 122, the plug block 72 automatically disengages from the fastening groove 111 and enters the temporal part of the pin cylinder 71. During the reset process of the plug block 72, it pushes the operating rod 121 to move upward. Then the worker takes the pin cylinder 71 out from the through groove 10 and the plug groove 11, thereby realizing the separation of the molding block 53 from the first driving block 61.

[0056] After disassembly, the worker places the suitable molding block 53 into the receiving groove 9. Then, the worker inserts the pin cylinder 71 into the through groove 10 and pushes it into the insertion groove 11. Next, the worker tightens the fastening bolt 123. The end of the fastening bolt 123 pushes the operating rod 121 to slide downward. The inclined surface at the end of the operating rod 121 interacts with the pushed inclined surface 721 on the insertion block 72, overcoming the elastic force of the return spring 122, driving the insertion block 72 to slide along the limiting groove 713 and insert into the fastening groove 111, thereby firmly fixing the molding block 53 onto the first driving block 61. This arrangement allows the worker to quickly assemble and disassemble the molding block 53 by operating only on the surface of the first molding block 53, without having to remove the bolt in a confined space, thus improving the convenience of assembling and disassembling the molding block 53.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A folding die for a belt guide rail plug support, comprising an upper die (1) and a lower die (2), characterized in that, Multiple modules are provided between the upper mold (1) and the lower mold (2). The multiple modules are, in sequence, a punching and cutting module (3), a pre-folding module (4) and a bending module (5) along the direction from the workpiece feeding end to the discharging end. The pre-folding module (4) includes multiple first support blocks (41) provided on the lower mold (2). The upper mold (1) is provided with pre-folding blocks (42) that correspond one-to-one with the multiple first support blocks (41). The folding angle of the multiple pre-folding blocks (42) increases sequentially along the direction from the workpiece feeding end to the discharging end.

2. The folding die for a belt guide rail plug support according to claim 1, characterized in that, The bending module (5) includes a second support block (51) disposed on the lower mold (2), a bending block (52) disposed on the upper mold (1) that cooperates with the second support block (51), and forming blocks (53) slidably connected to the opposite sides of the second support block (51). A driving component (6) is disposed on the upper mold (1) and the lower mold (2). When the upper mold (1) and the lower mold (2) are closed, the driving component (6) drives the two forming blocks (53) to move toward the second support block (51).

3. The folding die for a belt guide rail plug support according to claim 2, characterized in that, The driving assembly (6) includes a first driving block (61) disposed on the molding block (53), and a second driving block (62) disposed on the upper mold (1) corresponding to the two first driving blocks (61) one by one. The first driving block (61) and the second driving block (62) are provided with inclined surfaces that slide and cooperate with each other. The inclined surfaces are inclined from bottom to top along the direction close to the central axis of the second support block (51). The lower mold (2) is provided with a reset member (8) that drives the first driving block (61) to reset.

4. The folding die for belt guide rail plug support according to claim 3, characterized in that, The lower mold (2) is provided with a guide rail (21) that slides with the first drive block (61), the second drive block (62) is provided with a connecting rod (621), the end of the connecting rod (621) is provided with a guide block (6211), and the first drive block (61) is provided with a guide groove (611) that slides with the guide block (6211).

5. The folding die for a belt guide rail plug support according to claim 3, characterized in that, The first drive block (61) has a receiving groove (9) for placing the molding block (53), and the molding block (53) is detachably connected to the first drive block (61) via a connecting component (7).

6. The folding die for a belt guide rail plug support according to claim 5, characterized in that, The connecting assembly (7) includes a plurality of connecting bolts, the ends of which pass through the molding block (53) and are threadedly connected to the first drive block (61).

7. The folding die for a belt guide rail plug support according to claim 5, characterized in that, The connecting assembly (7) includes a pin cylinder (71). The first driving block (61) and the forming block (53) are provided with through grooves (10) that slide with the pin cylinder (71). The first driving block (61) is provided with a insertion groove (11) that inserts with the pin cylinder (71). The inner sidewall opposite to the pin cylinder (71) is provided with a limiting groove (711). An insertion block (72) is slidably connected in the limiting groove (711). The inner sidewall opposite to the insertion groove (11) is provided with a fastening groove (111) that inserts with the insertion block (72). The pin cylinder (71) is provided with a control assembly (12) that drives the insertion block (72) to insert into or disengage from the fastening groove (111).

8. The folding die for a belt guide rail plug support according to claim 7, characterized in that, The control component (12) includes an operating rod (121) that slides through the inside of the pin cylinder (71). The plug block (72) has a push-receiving inclined surface (721) that slides with the end of the operating rod (121). A limiting groove (713) is formed in the bottom wall of the pin cylinder (71). Each plug block (72) has a limiting block (722) that slides with the limiting groove (713). Return springs are provided at opposite ends of the limiting groove (713). (122) The reset spring (122) pushes the plug block (72) away from the fastening groove (111). The top end of the pin cylinder (71) is threaded with a fastening bolt (123). The end of the fastening bolt (123) abuts against the top end of the operating rod (121). When the fastening bolt (123) is tightened, the bottom surface of the operating rod (121) abuts against the inner bottom wall of the pin cylinder (71), and the two plug blocks (72) are inserted into the fastening groove (111).

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