Bending die for liner

Abstract

The utility model discloses a liner bending die which comprises an upper die mechanism and a lower die mechanism, the upper die mechanism comprises an upper fixing plate and an extrusion plate, the upper fixing plate is provided with a plurality of extrusion heads, the extrusion plate is provided with extrusion holes, and the ends of the extrusion heads are matched with the extrusion holes; an extrusion part is arranged on the lower surface of the extrusion plate; avoiding grooves are formed in the left and right sides of the extrusion part; the lower die mechanism comprises a lower fixing plate and an abutting plate, the abutting plate is provided with a shaping part and a material belt fixing piece, and the material belt fixing piece penetrates through the abutting plate to be connected with the lower fixing plate; a plurality of bending holes are formed in the shaping part; the extrusion heads are matched with the bending holes to longitudinally extrude and bend the two ends of the liner; a transverse bending assembly is further arranged on the shaping part, and the transverse bending assembly is used for transversely extruding and bending the liner; the gasket is bent twice through the same die, so that the machining efficiency can be improved, and the machining precision of the gasket is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of material strip processing, and in particular relates to a bending die for a liner. Background Art

[0002] The gasket is usually on the surface of the part to protect the part or facilitate the subsequent connection of the part; the traditional gasket bending mold has low processing efficiency. One mold can only bend one part of the gasket, and it is impossible to bend both ends and the middle of the gasket at the same time. Therefore, double molds are required to bend the gasket in place. However, the gasket is prone to displacement when moving from one mold to another. The displacement will cause the bending position to not correspond. Therefore, the traditional gasket bending mold has low processing efficiency and a high product defect rate. Utility Model Content

[0003] The utility model aims to provide a bending die for a gasket, which bends the two ends of the gasket by arranging mutually matching extrusion heads and extrusion holes on an upper die mechanism and a lower die mechanism, and then transversely bends the middle part of the gasket by a transverse bending assembly, and the gasket is bent twice by the same die, thereby improving processing efficiency and ensuring processing accuracy.

[0004] The utility model is realized by the following technical solutions:

[0005] A liner bending die, comprising an upper die mechanism and a lower die mechanism, wherein the upper die mechanism comprises an upper fixed plate and an extrusion plate, wherein the upper fixed plate and the extrusion plate are connected by an elastic member, wherein a plurality of extrusion heads are arranged on the upper fixed plate, wherein an extrusion hole is arranged on the extrusion plate, and the end of the extrusion head matches the extrusion hole; wherein an extrusion portion is arranged on the lower surface of the extrusion plate, wherein the extrusion hole is arranged on the extrusion portion, and wherein both left and right sides of the extrusion portion are provided with a clearance groove;

[0006] The lower mold mechanism includes a lower fixed plate and an abutment plate, an elastic member is also arranged between the lower fixed plate and the abutment plate, a shaping portion is arranged on the abutment plate, and material strip fixing members are arranged on both sides of the shaping portion, and the material strip fixing members pass through the abutment plate and are connected with the lower fixed plate; a plurality of bending holes matching with the extrusion head are arranged on the shaping portion; the extrusion head matches with the bending holes to longitudinally extrude and bend the two ends of the gasket; a transverse bending component is also arranged on the shaping portion, and the transverse bending component performs transverse extrusion and bending on the gasket.

[0007] Furthermore, the transverse bending assembly includes a pressure block, a pushing member, a slider and a limiting beam, the pressure block is arranged on the extrusion part of the extrusion plate and is located on the side of the extrusion hole, the pressure block is used to press down the pad on the padding strip, the pushing member is arranged on the upper fixed plate, the pushing member passes through the surface of the extrusion plate and is protruding; the slider is arranged on the abutment plate, the slider is slidably connected to the abutment plate, the limiting beam is arranged on the opposite side of the slider, and the pushing member is used to be inserted between the slider and the abutment plate and drive the slider to move closer to the abutment plate.

[0008] Furthermore, a material strip groove is provided on the upper side of the material strip fixing piece, and the material strip grooves of the material strip fixing pieces on both sides of the shaping portion are arranged opposite to each other.

[0009] Furthermore, a groove is provided on the abutment plate below the material belt fixing piece, the groove is used to make way for the material belt fixing piece, and the depth of the groove is less than the thickness of the material belt fixing piece.

[0010] Furthermore, guide rods are provided on both sides of the extrusion portion of the extrusion plate.

[0011] Furthermore, a plurality of positioning shafts are arranged between the upper fixing plate and the extrusion plate, one end of the positioning shaft is connected to the upper fixing plate, and the other end thereof passes through the extrusion plate and protrudes out; a positioning hole is arranged on the abutment plate, and the positioning hole cooperates with the positioning shaft.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0013] 1) In the utility model, the upper die mechanism and the lower die mechanism are respectively provided with extrusion heads and extrusion holes that cooperate with each other to bend the two ends of the gasket, and then the middle part of the gasket is transversely bent by a transverse bending assembly. The gasket is bent twice by the same die, thereby improving the processing efficiency and ensuring the processing accuracy of the gasket.

[0014] 2) In the utility model, a groove matching with the material belt fixing piece is provided on the abutment plate, and the groove is provided on the left and right sides of the shaping part. The depth of the groove matches with the height of the material belt groove on the material belt fixing piece. After the material belt fixing piece moves down and contacts with the groove, the material belt groove and the surface of the shaping part are in the same horizontal plane, so as to facilitate the extrusion and bending of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of the bending die of the liner.

[0017] Figure 2 It is a schematic diagram of the structure of the extruded plate in the bending die of the liner of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the abutment plate in the bending die of the liner of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the liner in the utility model.

[0020] Among them: 1-upper fixed plate, 2-extrusion plate, 21-allowance groove, 22-extrusion part, 221-extrusion hole, 3-elastic member, 4-extrusion head, 5-positioning shaft, 6-guide rod, 7-pushing member, 8-pressing block, 9-abutment plate, 91-groove, 92-positioning hole, 93-bending hole, 10-lower fixed plate, 11-material belt fixing member, 111-material belt groove, 112-avoidance mouth, 12-slider, 13-limiting beam, 14-pad. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0022] Embodiment 1:

[0023] The main structure of this embodiment is a bending mold of a liner, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes an upper die mechanism and a lower die mechanism, the upper die mechanism includes an upper fixed plate 1 and an extrusion plate 2, the upper fixed plate 1 and the extrusion plate 2 are connected by an elastic member 3, a plurality of extrusion heads 4 are arranged on the upper fixed plate 1, an extrusion hole 221 is arranged on the extrusion plate 2, and the end of the extrusion head 4 matches with the extrusion hole 221; an extrusion portion 22 is arranged on the lower surface of the extrusion plate 2, the extrusion hole 221 is arranged on the extrusion portion 22, and the left and right sides of the extrusion portion 22 are both provided with a clearance groove 21; the extrusion plate 2 is provided with guide rods 6 on both sides of the extrusion portion 22;

[0024] The lower mold mechanism includes a lower fixing plate 10 and an abutting plate 9, an elastic member 3 is also arranged between the lower fixing plate 10 and the abutting plate 9, a shaping portion is arranged on the abutting plate 9, and a material strip fixing member 11 is arranged on both sides of the shaping portion, and the material strip fixing member 11 passes through the abutting plate 9 and is connected to the lower fixing plate 10; a plurality of bending holes 93 cooperating with the extrusion head 4 are arranged on the shaping portion; the extrusion head 4 cooperates with the bending holes 93 to longitudinally extrude and bend the two ends of the liner 14; a transverse bending component is also arranged on the shaping portion, and the transverse bending component performs transverse extrusion and bending on the liner 14;

[0025] A plurality of positioning shafts 5 are arranged between the upper fixing plate 1 and the extrusion plate 2 , one end of the positioning shaft 5 is connected to the upper fixing plate 1 , and the other end thereof passes through the extrusion plate 2 and protrudes out; a positioning hole 92 is arranged on the abutment plate 9 , and the positioning hole 92 cooperates with the positioning shaft 5 .

[0026] The upper die mechanism includes an upper fixed plate 1 and an extrusion plate 2, four positioning shafts 5 are arranged between the upper fixed plate 1 and the extrusion plate 2, and four elastic members 3 are also arranged. The elastic members 3 are preferably springs, and the elastic members 3 can reset the extrusion plate 2 after completing an extrusion operation; four extrusion heads 4 are arranged on the upper fixed plate 1, and an extrusion hole 221 is arranged on the extrusion plate 2. The extrusion head 4 is arranged through the extrusion hole 221. When the upper fixed plate 1 is pressed down by an external stamping device, the extrusion plate 2 is limited by the lower die mechanism so that the extrusion head 4 can extend from the extrusion hole 221 and insert into the bending hole 93 to bend the pad to be bent on the pad material strip. 14 is pressed down and bent; an extrusion portion 22 is provided on the extrusion plate 2, an extrusion hole 221 is provided on the extrusion portion 22, and both sides of the extrusion portion 22 are provided with a clearance groove 21, which cooperates with the material belt fixing member 11 of the lower mold mechanism and is used to make way for the material belt fixing member 11; guide rods 6 are provided between both sides of the clearance groove 21 and the extrusion portion 22, and the guide rods 6 are used to limit the padding material belt to prevent displacement during the movement of the padding material belt, and at the same time, a clearance opening 112 is provided on the side of the material belt fixing member 11, and the clearance opening 112 is used to make way for the guide rod 6, so that the extrusion plate 2 and the abutment plate 9 can be matched;

[0027] The lower mold mechanism includes a lower fixed plate 10 and an abutment plate 9, and an elastic member 3 is also arranged between the lower fixed plate 10 and the abutment plate 9. A shaping portion is arranged on the abutment plate 9, and a material strip fixing member 11 is arranged on both sides of the shaping portion and passes through the abutment plate 9 to be connected with the lower fixed plate 10. A plurality of bending holes 93 are arranged on the shaping portion, and the bending holes 93 cooperate with the bending head in the upper mold mechanism. After the liner material strip passes through the bending holes 93, it is squeezed by the bending head to bend the two ends of the liner 14; at the same time, a transverse bending component is also arranged between the material strip fixing members 11, and the transverse bending component can perform transverse bending and shaping on the middle part of the liner 14 in the liner material strip.

[0028] Embodiment 2:

[0029] On the basis of the above embodiments, the present embodiment further defines a transverse bending component, which includes a pressure block 8, a pushing member 7, a slider 12 and a limiting beam 13. The pressure block 8 is arranged on the extrusion portion 22 of the extrusion plate 2 and is located on the side of the extrusion hole 221. The pressure block 8 is used to press down the gasket 14 on the gasket material strip. The pushing member 7 is arranged on the upper fixed plate 1. The pushing member 7 passes through the surface of the extrusion plate 2 and protrudes. The slider 12 is arranged on the abutment plate 9. The slider 12 is slidably connected to the abutment plate 9. The limiting beam 13 is arranged on the opposite side of the slider 12. The pushing member 7 is used to be inserted between the slider 12 and the abutment plate 9 and drive the slider 12 to move closer to the abutment plate 9.

[0030] The transverse bending assembly includes a pressing block 8, a pushing member 7, a slider 12 and a limiting beam 13. The pressing block 8 is arranged on the extrusion plate 2 of the upper die mechanism and is located on the side of the extrusion hole 221. When the two ends of the liner 14 in the liner strip are bent by the extrusion head 4, the pressing block 8 will squeeze the middle part of the liner 14 and protrude from the bottom surface of the liner strip. When the liner strip passes through the pushing member 7, it is squeezed by the slider 12 and the limiting beam 13 to form a right-angle bending structure; the slider 12 and the limiting beam 13 are arranged on the abutment plate 9 and are arranged relatively The pusher 7 is arranged on the extrusion plate 2 of the upper mold mechanism, the slider 12 and the abutment plate 9 are slidably arranged, and one side of the pusher 7 is arranged as a wedge-shaped structure. When the pusher 7 approaches the slider 12, it will be inserted between the slider 12 and the abutment plate 9 to squeeze the slider 12 so that the slider 12 moves toward the limit beam 13, thereby squeezing the middle part of the gasket 14 to bend it; the pusher 7 is also arranged on the fixed plate and passes through the extrusion plate 2. When the extrusion plate 2 returns to its original position, the end of the pusher 7 remains flush with the surface of the extrusion plate 2. The other parts of this embodiment are the same as the above embodiment and will not be repeated here.

[0031] Embodiment 3:

[0032] Based on the above embodiments, the present embodiment further defines the material strip fixing part 11, and a material strip groove 111 is provided on the upper side of the material strip fixing part 11, and the material strip grooves 111 of the material strip fixing part 11 on both sides of the shaping portion are relatively arranged; a groove 91 is provided on the abutment plate 9 below the material strip fixing part 11, and the groove 91 is used to make way for the material strip fixing part 11, and the depth of the groove 91 is less than the thickness of the material strip fixing part 11.

[0033] The material strip fixing part 11 is arranged on the left and right sides of the shaping part, and multiple material strip fixing parts 11 are arranged on both sides of the shaping part. The material strip fixing parts 11 on the same side of the shaping part are arranged in the same axis, and the material strip fixing parts 11 on both sides are arranged in parallel. The material strip groove 111 is arranged on the side wall of the material strip fixing part 11. The material strip groove 111 is used to limit the padding material strip. A spring is arranged between the bottom of the material strip fixing part 11 and the lower fixed plate 10. When the extrusion plate 2 is pressed down, the material strip fixing part 11 will move downward and embed into the groove 91 below. At this time, the material strip groove 111 is kept at the same level as the shaping part. Then the upper fixed plate 1 continues to move downward to make the extrusion head 4 extend to extrude and bend the two ends of the pad 14. At the same time, the pusher 7 also extends from the extrusion plate 2 to push the slider 12 to bend the middle part of the pad 14. The padding material strip continues to move under the drive of the external material receiving mechanism to form a streamlined bending process. The other parts of this embodiment are the same as the above embodiment and will not be repeated here.

[0034] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0035] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A liner bending die, characterized in that: It comprises an upper die mechanism and a lower die mechanism, wherein the upper die mechanism comprises an upper fixed plate and an extrusion plate, wherein the upper fixed plate and the extrusion plate are connected by an elastic member, wherein a plurality of extrusion heads are arranged on the upper fixed plate, wherein an extrusion hole is arranged on the extrusion plate, and the end of the extrusion head matches with the extrusion hole; wherein an extrusion part is arranged on the lower surface of the extrusion plate, wherein the extrusion hole is arranged on the extrusion part, and wherein both left and right sides of the extrusion part are provided with a clearance groove; The lower mold mechanism includes a lower fixed plate and an abutment plate, an elastic member is also arranged between the lower fixed plate and the abutment plate, a shaping portion is arranged on the abutment plate, and material strip fixing members are arranged on both sides of the shaping portion, and the material strip fixing members pass through the abutment plate and are connected with the lower fixed plate; a plurality of bending holes matching with the extrusion head are arranged on the shaping portion; the extrusion head matches with the bending holes to longitudinally extrude and bend the two ends of the gasket; a transverse bending component is also arranged on the shaping portion, and the transverse bending component performs transverse extrusion and bending on the gasket.

2. The bending die of the liner according to claim 1, characterized in that: The transverse bending assembly includes a pressure block, a pushing member, a slider and a limiting beam. The pressure block is arranged on the extrusion part of the extrusion plate and is located on the side of the extrusion hole. The pressure block is used to press down the pad on the padding strip. The pushing member is arranged on the upper fixed plate. The pushing member passes through the surface of the extrusion plate and is protruding. The slider is arranged on the abutment plate. The slider is slidably connected to the abutment plate. The limiting beam is arranged on the opposite side of the slider. The pushing member is used to be inserted between the slider and the abutment plate and drive the slider to move closer to the abutment plate.

3. The bending die of the liner according to claim 1, characterized in that: The upper side of the material belt fixing piece is provided with a material belt groove, and the material belt grooves of the material belt fixing pieces on both sides of the shaping portion are arranged opposite to each other.

4. The bending die of the liner according to claim 3, characterized in that: A groove is provided on the abutting plate below the material belt fixing piece, and the groove is used to make way for the material belt fixing piece, and the depth of the groove is less than the thickness of the material belt fixing piece.

5. The bending die of the liner according to claim 1, characterized in that: The extrusion plate is provided with guide rods on both sides of the extrusion portion.

6. The bending die of the liner according to claim 1, characterized in that: A plurality of positioning shafts are arranged between the upper fixing plate and the extrusion plate, one end of the positioning shaft is connected to the upper fixing plate, and the other end thereof passes through the extrusion plate and protrudes out; a positioning hole is arranged on the abutting plate, and the positioning hole matches the positioning shaft.

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