Product material strap bending device

Abstract

The utility model provides a product material belt bending device which comprises a stamping mechanism and a fixing mechanism, and the fixing mechanism comprises a bearing piece and a material bearing swing block. The first end of the material supporting swing block is arranged close to the product material belt, the second end of the material supporting swing block is connected with an elastic component, a limiting piece is arranged close to the first end of the material supporting swing block, and the material supporting swing block is located below the product material belt. Before a product material belt is bent and formed, the elastic component provides upward force for the second end of the material supporting swing block, and the material supporting swing block is kept in a horizontal state under the limiting action of the limiting piece at the first end of the material supporting swing block, so that the material supporting effect is achieved. In the bending and mold closing process of the product material strap, the stamping mechanism downwards stamps the product material strap, so that the product material strap is bent. The material supporting swing block is subjected to punching force, the elastic component is stretched, the material supporting swing block rotates, and the product material belt leaves the material supporting swing block. The material supporting swing block changes from the material supporting effect before bending forming to the material stripping effect, and assists the product material belt to be bent smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of bending devices, in particular to a product strip bending device. Background Art

[0002] For the existing sheet metal molds that bend downward, the bending part of the lower mold has no supporting structure and is suspended. If the bending edge is long, there will be a certain deviation in the product positioning during the bending process, and there will be a certain gap between the actual forming effect and the theoretical forming effect, and the bending part of the product will have defects.

[0003] For some products with high bending forming requirements, the existing sheet metal molds cannot meet the production requirements, and are limited by the mold structure, and it is impossible to add a floating block structure to balance the gravity of the suspended part of the product.

[0004] Therefore, there is a need for a product strip bending device that has a material supporting function in addition to positioning the product. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the purpose of the utility model is to provide a product strip bending device, which has an additional material supporting function based on product positioning.

[0006] A product material strip bending device comprises a stamping mechanism and a fixing mechanism, wherein the fixing mechanism comprises a supporting member and a supporting swing block, wherein the supporting member is used to fix the product material strip; the first end of the supporting swing block is arranged close to the product material strip, the second end of the supporting swing block is connected to an elastic component, and a limiting member is arranged close to the first end of the supporting swing block. Before the product material strip is bent and formed, the supporting swing block is located below the product material strip, and the first end of the supporting swing block supports the product material strip. Under the joint action of the supporting member and the supporting swing block, the product material strip is positioned. Before the product material strip is bent and formed, the product material strip is placed on the supporting member, and at this time, the product material strip contacts the first end of the supporting swing block. The product material strip applies a downward force to the supporting swing block, and the elastic component provides an upward force to the second end of the supporting swing block, and the upward force on the supporting swing block is greater than the downward force on the supporting swing block. Under the limiting action of the limiting member at the first end of the supporting swing block, the supporting swing block maintains a horizontal state and plays a supporting role. During the process of bending and closing the mold of the product strip, the punching mechanism punches downward to bend the product strip. The punching force of the punching mechanism on the product strip also acts on the support swing block. The support swing block is subjected to the punching force, the elastic component is stretched, the support swing block rotates counterclockwise, and the product strip leaves the support swing block. The support swing block changes from the supporting function before bending to the stripping function, helping the product strip to complete the bending smoothly.

[0007] In a preferred technical solution of the present utility model, the fixing mechanism further comprises a first positioning block, and one end of the product material belt away from the material supporting swing block abuts against the first positioning block.

[0008] The first positioning block abuts against the end of the product strip away from the supporting swing block, and can limit the product strip before the product strip is bent and formed and during the bending and mold closing process of the product strip to prevent the product strip from shifting in the horizontal direction.

[0009] In a preferred technical solution of the utility model, the limiting member includes a positioning pin, and the positioning pin is used to limit the supporting swing block.

[0010] The positioning pin is arranged near the first end of the support swing block and is located above the first end of the support swing block. When the support swing block has a tendency to move counterclockwise, the support swing block presses the positioning pin upward, and the positioning pin applies a downward force to the support swing block. Under the limiting action of the positioning pin, the support swing block remains in a horizontal state.

[0011] In a preferred technical solution of the utility model, the elastic component includes a first spring, and both ends of the first spring are connected with screws.

[0012] Before the product strip is bent and formed, the first spring is in a compressed state, and the first spring applies an upward force to the support swing block. The positioning pin is arranged near the first end of the support swing block, and under the limiting action of the positioning pin, the support swing block is prevented from rotating counterclockwise, so that the support swing block remains in a horizontal state.

[0013] In a preferred technical solution of the utility model, the supporting member includes a floating pin and a second spring, the bottom of the floating pin is connected to the second spring, and the top of the floating pin abuts against the product material strip.

[0014] During the process of bending and closing the mold of the product strip, the punching mechanism punches the product strip downward, and the product strip applies a downward punching force to the floating pin, and the floating pin squeezes the second spring. The second spring is compressed after being squeezed, and applies an upward elastic force to the floating pin.

[0015] In a preferred technical solution of the utility model, the fixing mechanism further includes a second positioning block, the first positioning block and the second positioning block are relatively arranged at two ends of the product material belt, and the material supporting swing block is arranged on the second positioning block.

[0016] The second positioning block is provided with a supporting swing block. Before the product strip is bent and formed, the supporting piece supports the bottom of the product strip, and the supporting swing block on the second positioning block supports the other end of the product strip. The product strip is located between the first positioning block and the second positioning block, and the first positioning block and the second positioning block jointly limit the product strip in the horizontal direction.

[0017] In a preferred technical solution of the present utility model, the second positioning block is connected to a fixed shaft, and one end of the fixed shaft away from the second positioning block is connected to the supporting swing block.

[0018] The first end of the fixed shaft is connected to the second positioning block, and the second end of the fixed shaft is connected to the supporting swing block. The second end of the fixed shaft can pass through the supporting swing block, so that the supporting swing block is sleeved on the fixed shaft, or the supporting swing block can be provided with a blind hole, and the second end of the fixed shaft is inserted into the blind hole, so that the supporting swing block can rotate relative to the fixed shaft.

[0019] In a preferred technical solution of the utility model, the fixing mechanism further comprises a lower die base, a lower mold plate is arranged on a side of the lower die base close to the stamping mechanism, and the supporting member extends out from the lower mold plate.

[0020] The second positioning block is fixed on the lower die base by means of hexagon socket screws, and the first fixing block is fixed on the lower die plate.

[0021] In a preferred technical solution of the utility model, the stamping mechanism includes a bending punch, and the bending punch is connected to an upper stripping plate; the bending punch includes a curved surface portion and a flat surface portion, and the curved surface portion extends in a direction away from the fixing mechanism.

[0022] The upper stripper plate and the bending punch move downward, and the product strip is simultaneously subjected to the punching force of the upper stripper plate and the bending punch. The upper stripper plate and the bending punch exert a punching force on the product strip, and at the same time, the punching force acts on the support swing block, which rotates counterclockwise under the action of the punching force until the support swing block is separated from the second end of the product strip.

[0023] In a preferred technical solution of the utility model, the stamping mechanism also includes an upper clamping plate, which is connected to one end of the bending punch away from the fixing mechanism, and the upper clamping plate is used to drive the bending punch and the upper stripping plate to punch the product strip downward.

[0024] During the process of bending and closing the mold of the product strip, the upper clamping plate descends, driving the bending punch and the upper stripping plate to descend. After the product strip is bent and closed, the upper clamping plate rises, driving the bending punch and the upper stripping plate to rise, and the bending punch and the upper stripping plate are separated from the product strip. The upper clamping plate drives the bending punch and the upper stripping plate back to the position before the product strip is bent and formed.

[0025] The beneficial effects of the utility model are:

[0026] The utility model provides a product material strip bending device, which includes a stamping mechanism and a fixing mechanism. The fixing mechanism includes a supporting member and a supporting swing block. The supporting member is used to fix the product material strip. The first end of the supporting swing block is arranged close to the product material strip, the second end of the supporting swing block is connected to an elastic component, and a limiting member is arranged close to the first end of the supporting swing block. Before the product material strip is bent and formed, the supporting swing block is located below the product material strip, and the first end of the supporting swing block supports the product material strip. Under the joint action of the supporting member and the supporting swing block, the product material strip is positioned. Before the product material strip is bent and formed, the product material strip is placed on the supporting member. At this time, the product material strip contacts the first end of the supporting swing block, and the first end of the supporting swing block plays a supporting role on the product material strip, so that the end of the product material strip close to the supporting swing block is not suspended. The product material strip applies a downward force to the supporting swing block, and the elastic component provides an upward force to the second end of the supporting swing block, and the upward force on the supporting swing block is greater than the downward force on the supporting swing block. Under the limiting action of the limiting piece at the first end of the support pendulum block, the support pendulum block remains in a horizontal state and plays a supporting role. The limiting piece limits the support pendulum block, and the support pendulum block supports the bottom of the product strip, so it can play a role in accurately positioning the product strip before bending and forming. During the process of bending and closing the mold of the product strip, the stamping mechanism stamps downward to bend the product strip. The stamping pressure of the stamping mechanism on the product strip acts on the support pendulum block at the same time. The support pendulum block is subjected to the stamping pressure, the elastic component is stretched, the support pendulum block rotates counterclockwise, and the product strip leaves the support pendulum block. The support pendulum block changes from a supporting role before bending and forming to a material removal role, assisting the product strip to complete the bending smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the product strip provided by the utility model before bending and forming;

[0028] Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of ;

[0029] Figure 3 It is a structural schematic diagram of the second positioning block provided by the utility model;

[0030] Figure 4 It is a schematic diagram of the structure of the bending punch provided by the utility model contacting the product strip;

[0031] Figure 5 yes Figure 4 A schematic cross-sectional structure diagram of ;

[0032] Figure 6 It is a structural schematic diagram of a bending punch provided by the utility model for bending a product strip;

[0033] Figure 7 yes Figure 6 A schematic cross-sectional structure diagram of ;

[0034] Figure 8 It is a schematic diagram of the structure of the mold opening after bending and forming provided by the utility model;

[0035] Fig. 9 yes Figure 8 Schematic diagram of the cross-sectional structure.

[0036] Figure numerals: 1. stamping mechanism; 11. bending punch; 12. upper stripping plate; 121. curved portion; 122. flat portion; 13. upper clamping plate; 2. fixing mechanism; 21. supporting member; 211. floating pin; 212. second spring; 22. supporting swing block; 23. elastic member; 231. first spring; 24. limiting member; 241. positioning pin; 25. first positioning block; 26. second positioning block; 27. fixed shaft; 28. lower die seat; 29. ​​lower template; 3. product strip. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0038] Example 1

[0039] like Figure 1 As shown, this embodiment provides a product material strip bending device, including a stamping mechanism 1 and a fixing mechanism 2, the fixing mechanism 2 includes a supporting member 21 and a supporting pendulum block 22, the supporting member 21 is used to fix the product material strip 3; the first end of the supporting pendulum block 22 is arranged close to the product material strip 3, the second end of the supporting pendulum block 22 is connected to an elastic component 23, and a limiting member 24 is arranged close to the first end of the supporting pendulum block 22; before the product material strip 3 is bent and formed, the supporting pendulum block 22 is located below the product material strip 3, and the first end of the supporting pendulum block 22 supports the product material strip 3.

[0040] The stamping mechanism 1 is located above the fixing mechanism 2, and the product strip 3 is placed on the supporting member 21 of the fixing mechanism 2. When the mold is in the open state, the supporting swing block 22 is located below the product strip 3, and the supporting swing block 22 contacts the first end of the product strip 3 to play a supporting role, so that the product strip 3 is placed stably, which is convenient for bending the product strip 3 into shape.

[0041] like Figure 1-Figure 2As shown, before the product strip 3 is bent and formed, the elastic component 23 is in a compressed state, and the elastic component 23 applies an upward force to the support swing block 22, and the upward force is greater than the gravity of the support swing block 22. In order to ensure that the support swing block 22 remains in a horizontal state, a limit member 24 is provided at the upper end of the support swing block 22 to prevent the support swing block 22 from moving upward, so that the support swing block 22 is in a horizontal state.

[0042] like Figure 4-Figure 7 As shown, during the bending and mold closing process of the product strip 3, the punching mechanism 1 punches downward to bend the product strip 3. The punching mechanism 1 applies a downward force to the product strip 3, and the product strip 3 applies a downward force to the first end of the support swing block 22, so that the support swing block 22 moves counterclockwise. During the counterclockwise movement of the support swing block 22, the second end of the support swing block 22 gradually rises, stretching the elastic component 23.

[0043] After the supporting swing block 22 rotates a certain angle, the product strip 3 leaves the supporting swing block 22, and the supporting swing block 22 changes from a supporting function before bending to a material removing function, thereby assisting the product strip 3 to complete the bending smoothly.

[0044] like Figure 8-Figure 9 As shown, after the product strip 3 is bent and the mold is closed, the stamping mechanism 1 does not stamp the product strip 3, and the product strip 3 does not exert a downward force on the support swing block 22. At this time, the support swing block 22 is pulled by the elastic component 23, so that the angle of the support swing block 22 returns to the normal state. The limiter 24 limits the support swing block 22 to ensure that the support swing block 22 returns to the horizontal state before bending and forming, so as to prepare for the bending and forming of the next product strip 3.

[0045] A product strip bending device provided in this embodiment includes a stamping mechanism 1 and a fixing mechanism 2, wherein the fixing mechanism 2 includes a supporting member 21 and a supporting swing block 22, wherein the supporting member 21 is used to fix the product strip 3; the first end of the supporting swing block 22 is arranged close to the product strip 3, the second end of the supporting swing block 22 is connected to an elastic component 23, and a limiting member 24 is arranged close to the first end of the supporting swing block 22. Before the product strip 3 is bent and formed, the supporting swing block 22 is located below the product strip 3, and the first end of the supporting swing block 22 supports the product strip 3. Under the joint action of the supporting member 21 and the supporting swing block 22, the product strip 3 is positioned. Before the product strip 3 is bent and formed, the product strip 3 is placed on the supporting member 21, at which time the product strip 3 contacts the first end of the supporting swing block 22, and the first end of the supporting swing block plays a supporting role on the product strip, so that the end of the product strip close to the supporting swing block is not suspended. The product strip 3 applies a downward force to the support swing block 22, and the elastic component 23 provides an upward force to the second end of the support swing block 22. The upward force on the support swing block 22 is greater than the downward force on the support swing block 22. Under the limiting action of the limiting member 24 at the first end of the support swing block 22, the support swing block 22 remains in a horizontal state and plays a supporting role. The limiting member 24 limits the support swing block 22, and the support swing block 22 supports the bottom of the product strip 3, so it can play a role in accurately positioning the product strip 3 before bending and forming. During the process of bending and closing the mold of the product strip 3, the stamping mechanism 1 stamps downward to bend the product strip 3. The stamping force of the stamping mechanism 1 on the product strip 3 acts on the support swing block 22 at the same time. The support swing block 22 is subjected to the stamping force, the elastic component 23 is stretched, the support swing block 22 rotates counterclockwise, and the product strip 3 leaves the support swing block 22. The supporting swing block 22 changes from a supporting function before bending to a material removing function, thereby assisting the product strip 3 to complete the bending smoothly.

[0046] Example 2

[0047] like Figure 1 As shown, this embodiment provides a product strip bending device, including a stamping mechanism 1 and a fixing mechanism 2, wherein the fixing mechanism 2 includes a supporting member 21 and a supporting swing block 22, wherein the supporting member 21 is used to fix the product strip 3; the first end of the supporting swing block 22 is arranged close to the product strip 3, the second end of the supporting swing block 22 is connected to an elastic component 23, and a limiting member 24 is arranged close to the first end of the supporting swing block 22. Before the product strip 3 is bent and formed, the supporting swing block 22 is located below the product strip 3, and the first end of the supporting swing block 22 supports the product strip 3.

[0048] The fixing mechanism 2 further includes a first positioning block 25 , and one end of the product strip 3 away from the supporting swing block 22 abuts against the first positioning block 25 .

[0049] like Figure 3 As shown, the fixing mechanism 2 further includes a second positioning block 26 , the first positioning block 25 and the second positioning block 26 are relatively arranged at two ends of the product material belt 3 , and the material supporting swing block 22 is arranged on the second positioning block 26 .

[0050] In this embodiment, the shape of the first positioning block 25 is L-shaped as an example, the first end of the product strip 3 abuts against the first positioning block 25, and the second end contacts the second positioning block 26. Under the joint action of the first positioning block 25, the second positioning block 26 and the supporting member 21, the product strip 3 is fixed.

[0051] A supporting swing block 22 is provided on the second positioning block 26 , and the supporting swing block 22 can support the product strip 3 , thereby improving the stability of bending the product strip 3 and the quality of the product.

[0052] Before the punching mechanism 1 contacts the product strip 3, the product strip 3 remains fixed. During the punching mechanism 1 punches the product strip 3, a portion of the product strip 3 close to the first positioning block 25 remains horizontal, and a portion of the product strip 3 close to the support swing block 22 is bent downward.

[0053] The second positioning block 26 is connected to a fixed shaft 27, and one end of the fixed shaft 27 away from the second positioning block 26 is connected to the material support pendulum block 22. The first end of the fixed shaft 27 is connected to the second positioning block 26, and the second end of the fixed shaft 27 is connected to the material support pendulum block 22. The second end of the fixed shaft 27 can pass through the material support pendulum block 22, so that the material support pendulum block 22 is sleeved on the fixed shaft 27, or the material support pendulum block 22 is provided with a blind hole, and the second end of the fixed shaft 27 is inserted into the blind hole, so that the material support pendulum block 22 can rotate relative to the fixed shaft 27.

[0054] The fixing mechanism 2 of the product strip bending device of this embodiment also includes a first positioning block 25, and one end of the product strip 3 away from the supporting swing block 22 abuts against the first positioning block 25. The fixing mechanism 2 also includes a second positioning block 26, and the first positioning block 25 and the second positioning block 26 are relatively arranged at the two ends of the product strip 3, and the supporting swing block 22 is arranged on the second positioning block 26. Before the product strip 3 is bent and formed, the supporting member 21 supports the bottom of the product strip 3, and the supporting swing block 22 on the second positioning block 26 supports the other end of the product strip 3. The product strip 3 is located between the first positioning block 25 and the second positioning block 26, and the first positioning block 25 and the second positioning block 26 jointly limit the product strip 3 in the horizontal direction.

[0055] Example 3

[0056] like Figure 1As shown, this embodiment provides a product strip bending device, including a stamping mechanism 1 and a fixing mechanism 2, wherein the fixing mechanism 2 includes a supporting member 21 and a supporting swing block 22, wherein the supporting member 21 is used to fix the product strip 3; the first end of the supporting swing block 22 is arranged close to the product strip 3, the second end of the supporting swing block 22 is connected to an elastic component 23, and a limiting member 24 is arranged close to the first end of the supporting swing block 22. Before the product strip 3 is bent and formed, the supporting swing block 22 is located below the product strip 3, and the first end of the supporting swing block 22 supports the product strip 3.

[0057] The limiting member 24 includes a positioning pin 241 , and the positioning pin 241 is used to limit the supporting swing block 22 .

[0058] In this embodiment, the circular shape of the positioning pin 241 is taken as an example. Before the product strip 3 is bent into shape, the material support block 22 is in a horizontal state, the positioning pin 241 is located above the material support block 22, and the positioning pin 241 is arranged close to the first end of the material support block 22.

[0059] The elastic component 23 includes a first spring 231, and screws are connected at both ends of the first spring 231. In this embodiment, the first spring 231 is taken as a round wire spring as an example, and both ends of the first spring 231 are fixed in the hexagon socket screws. Before the product strip 3 is bent and formed, the first spring 231 is in a compressed state, and the first spring 231 applies an upward force to the support pendulum block 22. The elastic force of the first spring 231 on the support pendulum block 22 is greater than the gravity of the support pendulum block 22, so that the support pendulum block 22 has a tendency to move counterclockwise. The positioning pin 241 is located above the support pendulum block 22. Before the product strip 3 is bent and formed, the positioning pin 241 abuts against the support pendulum block 22 to limit the support pendulum block 22. There is a certain distance between the positioning pin 241 and the fixed shaft 27. The support swing block 22 presses the positioning pin 241 upward, and the positioning pin 241 applies a downward force to the support swing block 22. Under the limiting effect of the positioning pin 241, the support swing block 22 remains in a horizontal state. The fixed shaft 27 is connected to the middle part of the support swing block 22, and the support swing block 22 can rotate counterclockwise or clockwise around the fixed shaft 27.

[0060] The limiting member 24 of this embodiment includes a positioning pin 241, which is used to limit the support pendulum block 22. The elastic component 23 includes a first spring 231, and screws are connected to both ends of the first spring 231. Before the product strip 3 is bent and formed, the first spring 231 is in a compressed state, and the first spring 231 applies an upward force to the support pendulum block 22. The positioning pin 241 is arranged near the first end of the support pendulum block 22, and under the limiting action of the positioning pin 241, the support pendulum block 22 is prevented from rotating counterclockwise, so that the support pendulum block 22 remains in a horizontal state.

[0061] Example 4

[0062] like Figure 1 As shown, this embodiment provides a product strip bending device, including a stamping mechanism 1 and a fixing mechanism 2, wherein the fixing mechanism 2 includes a supporting member 21 and a supporting swing block 22, wherein the supporting member 21 is used to fix the product strip 3; the first end of the supporting swing block 22 is arranged close to the product strip 3, the second end of the supporting swing block 22 is connected to an elastic component 23, and a limiting member 24 is arranged close to the first end of the supporting swing block 22. Before the product strip 3 is bent and formed, the supporting swing block 22 is located below the product strip 3, and the first end of the supporting swing block 22 supports the product strip 3.

[0063] The supporting member 21 includes a floating pin 211 and a second spring 212. The bottom of the floating pin 211 is connected to the second spring 212. The top of the floating pin 211 abuts against the product material belt 3. In this embodiment, the second spring 212 is a rectangular spring and two floating pins 211 are set as an example.

[0064] like Figure 4-Figure 7 As shown, during the process of bending and closing the mold of the product strip 3, the punching mechanism 1 punches the product strip 3 downward, and the product strip 3 applies a downward punching force to the floating pin 211, and the floating pin 211 squeezes the second spring 212. The second spring 212 is compressed after being squeezed, and applies an upward elastic force to the floating pin 211. A part of the floating pin 211 and the second spring 212 are both located in the sleeve, and the diameter of the floating pin 211 is smaller than the inner diameter of the sleeve, so that the floating pin 211 can slide up and down inside the sleeve.

[0065] like Figure 8-Figure 9 As shown, after the product strip 3 is bent and the mold is closed, the support swing block 22 is separated from the product strip 3, and the support swing block 22 is no longer subjected to the punching force applied by the product strip 3. At this time, the first spring 231 is in a stretched state, and the support swing block 22 rotates clockwise under the downward pulling force applied by the first spring 231 and its own gravity. After the support swing block 22 returns to the normal position, the support swing block 22 still has a tendency to continue to rotate clockwise, and the positioning pin 241 limits the support swing block 22 to ensure that the support swing block 22 returns to the horizontal state before bending and forming, in preparation for bending and forming the next product strip 3.

[0066] The fixing mechanism 2 further includes a lower die base 28 . A lower mold plate 29 is disposed on one side of the lower die base 28 close to the punching mechanism 1 . The supporting member 21 extends out from the lower mold plate 29 .

[0067] A portion of the sleeve is located in the lower die seat 28 , and another portion is located in the lower die plate 29 . A screw plug is connected to the bottom of the second spring 212 , and the floating pin 211 passes through the lower die plate 29 .

[0068] The second positioning block 26 is fixed to the lower die base 28 by a hexagon socket screw. The bottom of the hexagon socket screw is located in the lower die base 28 , and a part of the hexagon socket screw is located in the second positioning block 26 .

[0069] The first fixing block is fixed to the lower template 29 by means of a hexagon socket screw, a part of which is located in the first fixing block and another part of which is located in the lower template 29 .

[0070] The supporting member 21 of this embodiment includes a floating pin 211 and a second spring 212. The bottom of the floating pin 211 is connected to the second spring 212, and the top of the floating pin 211 is in contact with the product strip 3. Before the product strip 3 is bent and formed, the floating pin 211 supports the bottom of the product strip 3. Under the joint action of the floating pin 211 and the supporting swing block 22, the product strip 3 is kept stable in the vertical direction. During the process of bending and closing the mold of the product strip 3, the stamping mechanism 1 stamps the product strip 3, and the product strip 3 applies a downward force to the floating pin 211, so that the floating pin 211 moves downward and squeezes the second spring 212. At this time, under the joint action of the floating pin 211 and the stamping mechanism 1, a part of the product strip 3 is confined between the floating pin 211 and the stamping mechanism 1.

[0071] Example 5

[0072] The present embodiment provides a product strip bending device, comprising a stamping mechanism 1 and a fixing mechanism 2, wherein the fixing mechanism 2 comprises a supporting member 21 and a supporting swing block 22, wherein the supporting member 21 is used to fix the product strip 3; the first end of the supporting swing block 22 is arranged close to the product strip 3, the second end of the supporting swing block 22 is connected to an elastic component 23, and a limiting member 24 is arranged close to the first end of the supporting swing block 22. Before the product strip 3 is bent and formed, the supporting swing block 22 is located below the product strip 3, and the first end of the supporting swing block 22 supports the product strip 3.

[0073] The punching mechanism 1 includes a bending punch 11 , and the bending punch 11 is connected to an upper stripping plate 12 ; the bending punch 11 includes a curved surface portion 121 and a flat surface portion 122 , and the curved surface portion 121 extends in a direction away from the fixing mechanism 2 .

[0074] The stamping mechanism 1 also includes an upper clamping plate 13, which is connected to one end of the bending punch 11 away from the fixing mechanism 2, and is used to drive the bending punch 11 and the upper stripping plate 12 to punch the product strip 3 downward.

[0075] During the process of bending and closing the mold of the product strip 3, the upper stripper plate 12 and the bending punch 11 move downward, and the product strip 3 is simultaneously subjected to the punching force of the upper stripper plate 12 and the bending punch 11. The upper stripper plate 12 and the bending punch 11 apply a punching force to the product strip 3, and at the same time, the punching force acts on the support swing block 22, which rotates counterclockwise under the action of the punching force until the support swing block 22 is separated from the second end of the product strip 3.

[0076] The curved portion 121 of the bending punch 11 has a certain curvature, and the side of the lower template 29 opposite to the curved portion 121 has the same curvature as the curved portion 121. The curved portion 121 of the bending punch 11 punches a portion of the product strip 3, causing the product strip 3 to bend and deform. The upper stripper plate 12 punches the product strip 3, and under the joint action of the upper stripper plate 12 and the positioning pin 241, the portion of the product strip 3 located between the upper stripper plate 12 and the positioning pin 241 remains fixed and does not deform.

[0077] The upper clamping plate 13 may be connected to the upper stripping plate 12 or not, which is not limited here. During the bending and mold closing process of the product strip 3, the upper clamping plate 13 descends, driving the bending punch 11 and the upper stripping plate 12 to descend.

[0078] After the product strip 3 is bent and the mold is closed, the upper clamp 13 rises, driving the bending punch 11 and the upper stripper plate 12 to rise. The bending punch 11 and the upper stripper plate 12 are separated from the product strip 3, and the upper clamp 13 drives the bending punch 11 and the upper stripper plate 12 back to the position before the product strip 3 is bent and formed.

[0079] The punching mechanism 1 of this embodiment includes a bending punch 11, and the bending punch 11 is connected to an upper stripper plate 12; the bending punch 11 includes a curved portion 121 and a flat portion 122, and the curved portion 121 extends in a direction away from the fixing mechanism 2. The punching mechanism 1 also includes an upper clamping plate 13, which is connected to an end of the bending punch 11 away from the fixing mechanism 2, and the upper clamping plate 13 is used to drive the bending punch 11 and the upper stripper plate 12 to punch the product strip 3 downward. The curved portion 121 of the bending punch 11 has a certain curvature. Since the curved portion 121 extends in a direction away from the fixing mechanism 2, when the upper clamping plate 13 drives the bending punch 11 and the upper stripper plate 12 to punch downward, the upper stripper plate 12 contacts the product strip 3, and a part of the product strip 3 is fixed under the joint action of the upper stripper plate 12 and the positioning pin 241. The curved surface portion 121 of the bending punch 11 presses downwardly another portion of the product strip 3 , so that the product strip 3 is bent and deformed.

[0080] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a restriction. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in the subsequent accompanying drawings.

[0081] It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would then be positioned "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0082] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0083] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A product strip bending device, characterized in that: It includes a stamping mechanism and a fixing mechanism, the fixing mechanism includes a supporting member and a supporting pendulum block, the supporting member is used to fix the product material strip; the first end of the supporting pendulum block is arranged close to the product material strip, the second end of the supporting pendulum block is connected with an elastic component, and a limiting member is arranged close to the first end of the supporting pendulum block; before the product material strip is bent and formed, the supporting pendulum block is located below the product material strip, and the first end of the supporting pendulum block supports the product material strip.

2. The product strip bending device according to claim 1, characterized in that: The fixing mechanism further comprises a first positioning block, and one end of the product strip away from the supporting swing block abuts against the first positioning block.

3. The product strip bending device according to claim 1, characterized in that: The limiting member includes a positioning pin, and the positioning pin is used to limit the supporting swing block.

4. The product strip bending device according to claim 1, characterized in that: The elastic component includes a first spring, and both ends of the first spring are connected with screws.

5. The product strip bending device according to claim 1, characterized in that: The supporting member includes a floating pin and a second spring, the bottom of the floating pin is connected to the second spring, and the top of the floating pin abuts against the product strip.

6. The product strip bending device according to claim 2, characterized in that: The fixing mechanism further comprises a second positioning block. The first positioning block and the second positioning block are arranged at two ends of the product material belt relatively to each other, and the material supporting swing block is arranged on the second positioning block.

7. The product strip bending device according to claim 6, characterized in that: The second positioning block is connected to a fixed shaft, and one end of the fixed shaft away from the second positioning block is connected to the supporting swing block.

8. The product strip bending device according to claim 1, characterized in that: The fixing mechanism further comprises a lower die base, a lower die plate is arranged on one side of the lower die base close to the punching mechanism, and the supporting member extends out from the lower die plate.

9. The product strip bending device according to claim 1, characterized in that: The punching mechanism comprises a bending punch, and the bending punch is connected to an upper stripping plate; the bending punch comprises a curved surface portion and a flat surface portion, and the curved surface portion extends in a direction away from the fixing mechanism.

10. The product strip bending device according to claim 9, characterized in that: The stamping mechanism also includes an upper clamping plate, which is connected to an end of the bending punch away from the fixing mechanism, and the upper clamping plate is used to drive the bending punch and the upper stripping plate to punch the product strip downward.

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