Product bending device

Abstract

The utility model belongs to product bending technical field discloses a product bending device, product bending device includes lower mould, upper die and bending mechanism, and the lower mould is provided with accommodation groove, and the one side groove wall of accommodation groove along first direction forms with inclined plane, and the abutting portion is formed between inclined plane and bearing surface, the upper die can move towards the lower mould, thereby carries out the mould, and the bending mechanism includes the swing arm rotationally connected in the upper die, and the swing arm can enter the accommodation groove when the upper die moves towards the lower mould, and the swing arm can rotate relative to the upper die, in the utility model, the component for pushing the bending part of product to carry out secondary bending is the swing arm set up on the upper die, thereby, for the lower mould, the cavity on it only needs to satisfy can form the accommodation groove for the bending part to enter, therefore, the occupied space of the cavity for forming the accommodation groove on the lower mould reduces, and the structural strength of the lower mould improves, thereby can improve the service life of the lower mould, and further improves the service life of product bending device whole.

Description

Technical Field

[0001] This utility model relates to the field of product bending technology, and in particular to a product bending device. Background Technology

[0002] In the manufacturing process of products such as connectors, automobiles, medical devices, and hardware products, some parts need to be formed by stamping and bending. For parts that require obtuse angle bending, the parts need to be bent at 90° first, and then the bent part is bent a second time to increase the bending angle of the bent part, thereby achieving obtuse angle bending.

[0003] In existing technologies, stamping dies are generally used as bending devices to perform secondary bending on parts. Specifically, the part to be bent is placed on the top surface of the lower die of the die. The lower die has a cavity, and the bent part of the part, which has been bent at 90°, extends into the cavity. A lower die insert is provided in the cavity, and the top of the lower die insert forms a pointed tip. The crease of the part fits with the pointed tip. A slider is also provided in the cavity. The slider can slide towards the lower die insert in the cavity. Since the bottom of the pointed tip is formed as a slope, after the slider moves towards the lower die insert, the slider can push the bent part of the part against the slope of the lower die insert for further bending, thereby achieving an obtuse angle bend.

[0004] As mentioned above, since the cavity of the lower die needs to be equipped with the lower die insert and slider, the cavity needs to occupy a large space of the lower die, resulting in lower structural strength of the lower die, which in turn affects the service life of the bending device. Utility Model Content

[0005] The purpose of this utility model is to provide a product bending device to improve the structural strength of the lower die, thereby increasing the service life of the product bending device.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A product bending device is used to bend the product's bent portion a second time along the crease. The product bending device includes:

[0008] The lower mold is provided with a receiving groove, and the product can be placed on the bearing surface of the lower mold. The bent part extends into the receiving groove. The receiving groove has an inclined surface on one side wall along the first direction, from the side away from the bearing surface to the side close to the bearing surface. The inclined surface is inclined toward the other side wall of the receiving groove along the first direction. An abutment is formed between the inclined surface and the bearing surface. The crease fits into the abutment.

[0009] The upper mold is movable toward the lower mold and presses the product between the upper mold and the lower mold;

[0010] A bending mechanism includes a swing arm rotatably connected to the upper die, the swing arm being able to extend into the receiving groove when the upper die moves toward the lower die, the swing arm being able to rotate relative to the upper die, and causing one end of the swing arm located in the receiving groove to push against the bending portion toward the inclined surface and bend.

[0011] Preferably, the upper mold is provided with a first mounting groove, the swing arm is installed in the first mounting groove, and one end of the swing arm extends out of the first mounting groove. The bending mechanism further includes a drive module, which includes a push rod and a mounting mold. The mounting mold is located on the side of the upper mold away from the lower mold. The push rod is installed on the mounting mold. The upper mold is provided with a first through hole, which communicates with the first mounting groove. The push rod is inserted into the first through hole. The mounting mold can move toward the upper mold and cause the push rod to push the swing arm to rotate relative to the upper mold.

[0012] Preferably, the bending mechanism further includes a return spring, which is installed between the swing arm and the upper die, and can drive one end of the swing arm located in the receiving groove to return to the side away from the inclined surface after the push rod releases the push on the swing arm.

[0013] Preferably, one end of the swing arm is provided with a rotating shaft, the axis of the rotating shaft extends along a second direction, the second direction is set at an angle to the first direction, the first mounting groove is formed with a shaft hole, and the upper mold is sleeved on the outer periphery of the rotating shaft through the shaft hole;

[0014] The other end of the swing arm extends out of the first mounting groove and can extend into the receiving groove when the upper mold moves toward the lower mold.

[0015] Preferably, the upper mold includes a first body and a first insert, the rotating shaft is rotatably connected to the first insert, the first insert is embedded in the first body, and the first insert and the first body together form the first mounting groove.

[0016] Preferably, the end of the swing arm extending out of the first mounting groove is provided with a protrusion, and the swing arm bends toward the inclined surface by pushing against the bending part through the protrusion.

[0017] Preferably, the first body includes a first block and a second block stacked together. The first block is disposed on the side of the second block away from the lower mold. The first block is provided with a first through hole, and the second block is provided with a second through hole. The first through hole and the second through hole communicate with each other. The first insert is installed in the second through hole and is provided with a locking block. The hole wall of the second through hole is provided with a locking groove. The locking groove is disposed at the end of the second through hole near the first block, and the locking block is locked in the locking groove.

[0018] Preferably, the first perforation extends along the arrangement direction of the mounting mold and the upper mold, and the upper mold is sleeved on the outer periphery of the push rod through the first perforation.

[0019] Preferably, the lower mold includes a second body and a second insert. The second body is provided with a second mounting groove, the second insert is installed in the second mounting groove, the inclined surface is formed on the second insert, and the second insert and the second body together form the receiving groove.

[0020] Preferably, the inclined surface and the bearing surface form a circular arc transition.

[0021] The beneficial effects of this utility model are:

[0022] In this invention, the component used to push the bent part of the product for secondary bending is a swing arm set on the upper die. Therefore, for the lower die, the cavity on it only needs to be able to form a receiving groove for the bent part to extend into. Thus, the space occupied by the cavity on the lower die for forming the receiving groove is reduced, the structural strength of the lower die is improved, thereby improving the service life of the lower die and thus improving the overall service life of the product bending device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the product structure after one bending in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the product bending device in an embodiment of this utility model;

[0025] Figure 3 This is a top view of the product bending device in an embodiment of this utility model;

[0026] Figure 4 It is along Figure 3 Sectional view of line AA in the middle;

[0027] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0028] Figure 6yes Figure 4 A schematic diagram after removing the swing arm, push plate, and return spring;

[0029] Figure 7 yes Figure 6 A magnified view of a section at point C;

[0030] Figure 8 yes Figure 6 A schematic diagram after removing the first and second inserts;

[0031] Figure 9 yes Figure 8 A magnified view of a section at point D;

[0032] Figure 10 This is a schematic diagram of the structure of the second insert in an embodiment of this utility model;

[0033] Figure 11 This is a schematic diagram of the swing arm in an embodiment of the present invention.

[0034] In the picture:

[0035] 1. Sheet material; 11. Bending section; 12. Crease;

[0036] 21. Lower mold; 211. Receiving groove; 212. Second body; 2121. Second mounting groove; 213. Second insert; 2131. Inclined surface; 2132. Abutting part; 22. Upper mold; 221. First mounting groove; 2211. Shaft hole; 2212. First cavity; 2213. Second cavity; 222. First body; 2221. First block; 22211. First through hole; 2222. Second block; 22221. Second through hole; 22222. Slot; 223. First insert; 2231. Locking block; 2232. Spring mounting groove; 231. Swing arm; 2311. Rotating shaft; 2312. Protrusion; 232. Drive module; 2321. Push rod; 2322. Mounting mold; 233. Return spring. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] Please see Figures 1 to 11 This embodiment provides a product bending device, which is used to make the bent part 11 of the product bend twice along the crease 12, thereby achieving an obtuse angle bend. It can be understood that the product mentioned in this embodiment is the part of the connector, automobile, medical device, hardware product and other products that need to be bent at an obtuse angle.

[0042] Specifically, the product bending device includes a lower die 21 and an upper die 22. The lower die 21 is provided with a receiving groove 211, on which the product can be placed. The bent portion 11 extends into the receiving groove 211. An inclined surface 2131 is formed on one side of the receiving groove 211 along the first direction. Moreover, from the side away from the bearing surface to the side close to the bearing surface, the inclined surface 2131 is inclined toward the other side of the receiving groove 211 along the first direction. An abutment portion 2132 is formed between the inclined surface 2131 and the bearing surface. The crease 12 fits against the abutment portion 2132. That is, in this embodiment, the product that has completed one bend is placed on the lower die 21, the bent portion 11 on the product extends into the receiving groove 211, and the crease 12 on the product fits against the abutment portion 2132.

[0043] The upper mold 22 can move toward the lower mold 21 to close the mold and press the product between the upper mold 22 and the lower mold 21. That is, when the upper mold 22 and the lower mold 21 close the mold, the product is pressed and confined between the upper mold 22 and the lower mold 21, thereby clamping and positioning the product.

[0044] To avoid a low overall service life of the product bending device due to the low service life of the lower die 21, in this embodiment, the product bending device also includes a bending mechanism. The bending mechanism includes a swing arm 231 rotatably connected to the upper die 22. The swing arm 231 can extend into the receiving groove 211 when the upper die 22 moves toward the lower die 21. The swing arm 231 can rotate relative to the upper die 22, and one end of it located in the receiving groove 211 pushes the bending part 11 toward the inclined surface 2131 to bend it, thereby making the bending part 11 bend twice along the crease 12, thereby achieving an obtuse angle bend.

[0045] That is, in this embodiment, the component used to push the bent part 11 of the product for secondary bending is the swing arm 231 provided on the upper die 22. Therefore, for the lower die 21, the cavity on it only needs to be able to form a receiving groove 211 into which the bent part 11 extends. Thus, the space occupied by the cavity on the lower die 21 for forming the receiving groove 211 is reduced, the structural strength of the lower die 21 is improved, thereby improving the service life of the lower die 21 and thus improving the overall service life of the product bending device.

[0046] For example, this embodiment takes sheet 1 as the product. A hinge is cut into the product, and the hinge can be bent around its connection point with other parts of the product. During product processing, the hinge on sheet 1 is first bent 90° around its connection point with other parts of the product, forming a bent portion 11. A crease 12 is formed at the connection point between the hinge and other parts of the product. Then, sheet 1 is placed on the lower die 21 of the product bending device, the hinge extends into the receiving groove 211, and the crease 12 fits against the abutment portion 2132. Then, the upper... Mold 22 moves toward lower mold 21 to close the mold, and sheet 1 is pressed and confined between upper mold 22 and lower mold 21, thereby clamping and positioning sheet 1. After upper mold 22 and lower mold 21 close the mold, swing arm 231 extends into receiving groove 211. Then, swing arm 231 rotates relative to upper mold 22, so that one end of it extending into receiving groove 211 pushes the hinge around the abutment 2132 toward inclined surface 2131, so that the hinge continues to bend along crease 12 to increase the bending angle of the hinge, thereby achieving a secondary bend to achieve an obtuse angle bend.

[0047] It is worth noting that in this embodiment, the inclined surface 2131 and the bearing surface are in a rounded transition, that is, the outer surface of the abutment part 2132 is a rounded surface, thereby avoiding damage to the product when bending the product.

[0048] Based on the above description, in this embodiment, the upper mold 22 is provided with a first mounting groove 221, the swing arm 231 is installed in the first mounting groove 221, and one end of the swing arm 231 extends out of the first mounting groove 221. The bending mechanism also includes a drive module 232, which includes a push rod 2321 and a mounting mold 2322. The mounting mold 2322 is located on the side of the upper mold 22 away from the lower mold 21. The push rod 2321 is installed on the mounting mold 2322. The upper mold 22 is provided with a first through hole 22211, which connects to the first mounting groove 221. The push rod 2321 is inserted into the first through hole 22211. The mounting mold 2322 can move toward the upper mold 22 and push the push rod 2321 to push the swing arm 231 to rotate relative to the upper mold 22, so that the swing arm 231 can push the product to perform a secondary bending.

[0049] In addition, the bending mechanism also includes a return spring 233, which is installed between the swing arm 231 and the upper mold 22. After the push rod 2321 releases its push on the swing arm 231, the return spring 233 drives one end of the swing arm 231 located in the receiving groove 211 to return to the side away from the inclined surface 2131. Specifically, in this embodiment, after the product completes the second bending, the mounting mold 2322 moves away from the upper mold 22, thereby causing the push rod 2321 to release its push on the swing arm 231. Under the action of the return spring 233, the swing arm 231 returns to its original position, thereby allowing the upper mold 22 and the lower mold 21 to separate smoothly for mold opening, and then the product that has completed the second bending can be taken away.

[0050] Furthermore, after the next product is placed on the lower mold 21, the upper mold 22 and the swing arm 231 set on the upper mold 22 can continue to perform a secondary bending operation on the next product.

[0051] For example, in this embodiment, the return spring 233 is a compression spring, and one side of the swing arm 231 along its rotation direction is the pressure part. The push rod 2321 can apply pressure to the pressure part, thereby causing the swing arm 231 to rotate and push against the bent part 11 of the product to bend. The return spring 233 is disposed between the other side of the swing arm 231 along its rotation direction and the upper mold 22. When the swing arm 231 rotates and pushes against the bent part 11 of the product to bend, the return spring 233 undergoes elastic deformation and can recover its deformation after the push rod 2321 releases the push on the swing arm 231, thereby restoring the swing arm 231 to its original position.

[0052] Of course, in other alternative embodiments, the return spring 233 can also be a tension spring. Accordingly, the return spring 233 is installed between the side of the swing arm 231 that forms the pressure part and the upper mold 22, so that it can undergo elastic deformation when the swing arm 231 rotates and pushes against the bent part 11 of the product, and can recover its deformation after the push rod 2321 releases the push on the swing arm 231, thereby restoring the swing arm 231 to its original position. This embodiment does not impose specific limitations on this.

[0053] Therefore, in this embodiment, one end of the swing arm 231 is provided with a rotating shaft 2311. For example, in this embodiment, the rotating shaft 2311 is integrally formed on one end of the swing arm 231. The swing arm 231 is rotatably connected to the upper mold 22 through the rotating shaft 2311. Specifically, the upper mold 22 includes a first body 222 and a first insert 223. The rotating shaft 2311 is rotatably connected to the first insert 223. The first insert 223 is embedded in the first body 222. The first insert 223 and the first body 222 form a first mounting groove 221. The other end of the swing arm 231 extends out of the first mounting groove 221 and can extend into the receiving groove 211 when the upper mold 22 moves toward the lower mold 21.

[0054] Furthermore, the first mounting groove 221 has a shaft hole 2211, and the upper mold 22 is sleeved on the outer periphery of the rotating shaft 2311 through the shaft hole 2211. Specifically, the first insert 223 of the upper mold 22 is sleeved on the outer periphery of the rotating shaft 2311 through the shaft hole 2211.

[0055] Specifically, the first insert 223 is provided with a first cavity 2212, and a second cavity 2213 is formed between the first body 222 and the first insert 223. The first cavity 2212 and the second cavity 2213 form a first mounting groove 221. The swing arm 231 is swayably installed in the first cavity 2212 and extends into the second cavity 2213. The swing arm 231 can swing in the first cavity 2212. Therefore, in this embodiment, the first cavity 2212 is formed with a shaft hole 2211. The first insert 223 is sleeved on the outer periphery of the rotating shaft 2311 through the shaft hole 2211, and the end of the swing arm 231 away from the rotating shaft 2311 extends out of the second cavity 2213.

[0056] In addition, based on the above description, the first insert 223 is provided with a spring mounting groove 2232, the reset spring 233 is installed in the spring mounting groove 2232, and the reset spring 233 is installed between the swing arm 231 and the bottom of the spring mounting groove 2232.

[0057] Furthermore, the axis of the rotating shaft 2311 extends along the second direction, which is set at an angle to the first direction. For example, in this embodiment, the second direction is perpendicular to the first direction, thereby ensuring that the swing arm 231 can accurately push the bent part 11 around the abutment part 2132 toward the inclined surface 2131, thereby ensuring that the bent part 11 can accurately bend along the crease 12 to accurately achieve the obtuse angle bend.

[0058] Based on the above description, in this embodiment, the first insert 223 is embedded in the first body 222, thereby preventing the first insert 223 from falling off the first body 222.

[0059] Specifically, in this embodiment, the first body 222 includes a first block 2221 and a second block 2222 stacked together. The first block 2221 is disposed on the side of the second block 2222 away from the lower mold 21. The first block 2221 is provided with the first through hole 22211 mentioned above, and the second block 2222 is provided with the second through hole 22221. The first insert 223 is installed in the second through hole 22221. That is, in this embodiment, a second cavity 2213 is formed in the second through hole 22221. The first through hole 22211 and the second through hole 22221 are connected, so that the first through hole 22211 can be connected to the first mounting groove 221, thereby enabling the push rod 2321 to extend into the second cavity 2213 and push the swing arm 231 to rotate when the mounting mold 2322 moves toward the upper mold 22.

[0060] Moreover, in this embodiment, the first insert 223 is provided with a locking block 2231, and the hole wall of the second through hole 22221 is provided with a locking groove 22222. The locking groove 22222 is located at one end of the second through hole 22221 near the first block 2221, and the locking block 2231 is locked in the locking groove 22222, so that the first insert 223 can be embedded into the first body 222.

[0061] Since the slot 22222 is located at one end of the second through hole 22221 near the first block 2221, in this embodiment, when assembling the upper mold 22, the first insert 223 can be assembled into the second block 2222 first, and then the first block 2221 and the second block 2222 can be assembled together, thus facilitating the assembly of the upper mold 22.

[0062] Furthermore, based on the above, in this embodiment, the first through hole 22211 extends along the arrangement direction of the mounting mold 2322 and the upper mold 22. The upper mold 22 is sleeved on the outer periphery of the push rod 2321 through the first through hole 22211, thereby providing a guiding effect for the mounting mold 2322 to drive the push rod 2321 to move, thereby ensuring that the push rod 2321 can stably push the swing arm 231 to rotate.

[0063] Furthermore, in this embodiment, the lower mold 21 includes a second body 212 and a second insert 213. The second body 212 is provided with a second mounting groove 2121, which is the cavity provided in the lower mold 21. The second insert 213 is installed in the second mounting groove 2121, and the second insert 213 is the insert of the lower mold 21. An inclined surface 2131 and abutment portion 2132 are formed on the second insert 213. The second insert 213 and the second body 212 together form an accommodating groove 211.

[0064] Furthermore, in this embodiment, it should be noted that the end of the swing arm 231 extending out of the first mounting groove 221 is provided with a protrusion 2312. The protrusion 2312 can extend into the receiving groove 211 when the upper mold 22 moves toward the lower mold 21. The swing arm 231 pushes the bending part 11 toward the inclined surface 2131 through the protrusion 2312, thereby facilitating the swing arm 231 to push the bending part 11 toward the inclined surface 2131 and bend.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A product bending device for bending the bent portion (11) of a product a second time along the crease (12), characterized in that, The product bending device includes: The lower mold (21) is provided with a receiving groove (211), the product can be placed on the bearing surface of the lower mold (21), and the bent part (11) extends into the receiving groove (211). The receiving groove (211) has a slope (2131) formed on one side of the groove wall along the first direction, from the side away from the bearing surface to the side close to the bearing surface. The slope (2131) is inclined towards the other side of the groove wall along the first direction of the receiving groove (211). An abutment part (2132) is formed between the slope (2131) and the bearing surface. The crease (12) fits into the abutment part (2132). The upper mold (22) is movable toward the lower mold (21) and presses the product between the upper mold (22) and the lower mold (21); The bending mechanism includes a swing arm (231) rotatably connected to the upper die (22), the swing arm (231) being able to extend into the receiving groove (211) when the upper die (22) moves toward the lower die (21), the swing arm (231) being able to rotate relative to the upper die (22), and causing one end of the swing arm (231) located in the receiving groove (211) to push against the bending portion (11) and bend toward the inclined surface (2131).

2. The product bending device according to claim 1, characterized in that, The upper mold (22) is provided with a first mounting groove (221), the swing arm (231) is installed in the first mounting groove (221), and one end of the swing arm (231) extends out of the first mounting groove (221). The bending mechanism also includes a drive module (232), the drive module (232) includes a push rod (2321) and a mounting mold (2322), the mounting mold (2322) is located on the side of the upper mold (22) away from the lower mold (21). A push rod (2321) is mounted on the mounting mold (2322). The upper mold (22) is provided with a first through hole (22211), which is connected to the first mounting groove (221). The push rod (2321) is inserted into the first through hole (22211). The mounting mold (2322) can move toward the upper mold (22) and cause the push rod (2321) to push against the swing arm (231) to rotate relative to the upper mold (22).

3. The product bending device according to claim 2, characterized in that, The bending mechanism also includes a return spring (233), which is installed between the swing arm (231) and the upper die (22). After the push rod (2321) releases the push on the swing arm (231), the return spring (233) drives one end of the swing arm (231) located in the receiving groove (211) to return to the side away from the inclined surface (2131).

4. The product bending device according to claim 2, characterized in that, One end of the swing arm (231) is provided with a rotating shaft (2311), the axis of the rotating shaft (2311) extends along a second direction, the second direction is set at an angle to the first direction, the first mounting groove (221) is formed with a shaft hole (2211), and the upper mold (22) is sleeved on the outer periphery of the rotating shaft (2311) through the shaft hole (2211); The other end of the swing arm (231) extends out of the first mounting groove (221) and can extend into the receiving groove (211) when the upper mold (22) moves toward the lower mold (21).

5. The product bending device according to claim 4, characterized in that, The upper mold (22) includes a first body (222) and a first insert (223). The rotating shaft (2311) is rotatably connected to the first insert (223). The first insert (223) is embedded in the first body (222). The first insert (223) and the first body (222) together form the first mounting groove (221).

6. The product bending device according to claim 5, characterized in that, The end of the swing arm (231) extending out of the first mounting groove (221) is provided with a protrusion (2312), and the swing arm (231) bends toward the inclined surface (2131) by pushing against the bending part (11) through the protrusion (2312).

7. The product bending device according to claim 5, characterized in that, The first body (222) includes a first block (2221) and a second block (2222) stacked together. The first block (2221) is disposed on the side of the second block (2222) away from the lower mold (21). The first block (2221) is provided with a first through hole (22211), and the second block (2222) is provided with a second through hole (22221). The first through hole (22211) and the second through hole (22222) are connected. 21) Connected, the first insert (223) is installed in the second through hole (22221), and the first insert (223) is provided with a locking block (2231). The hole wall of the second through hole (22221) is provided with a locking groove (22222). The locking groove (22222) is located at one end of the second through hole (22221) near the first block (2221). The locking block (2231) is locked in the locking groove (22222).

8. The product bending device according to claim 2, characterized in that, The first perforation (22211) extends along the arrangement direction of the mounting mold (2322) and the upper mold (22), and the upper mold (22) is sleeved on the outer periphery of the push rod (2321) through the first perforation (22211).

9. The product bending device according to claim 1, characterized in that, The lower mold (21) includes a second body (212) and a second insert (213). The second body (212) is provided with a second mounting groove (2121). The second insert (213) is installed in the second mounting groove (2121). The inclined surface (2131) is formed on the second insert (213). The second insert (213) and the second body (212) together form the receiving groove (211).

10. The product bending device according to claim 1, characterized in that, The inclined surface (2131) and the bearing surface form a circular arc transition.

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