Coated stamping device with double cavities

Abstract

The utility model provides a wrapping type stamping device with double cavities. The wrapping type stamping device with the double cavities comprises an upper die mechanism and a lower die mechanism, the upper die mechanism comprises an upper die plate assembly, a first wrapping piece and a first punch, the upper die plate assembly is fixedly connected with the first punch, the upper die plate assembly is provided with a first connecting column, and the first connecting column is fixedly connected with the first wrapping piece. The first wrapping piece is movably connected to the first connecting column, and a first movable channel is formed in the first wrapping piece; the lower die mechanism comprises a lower die plate assembly, a second wrapping piece and a second punch, the lower die plate assembly is fixedly connected with the second punch and provided with a second connecting column, the second wrapping piece is movably connected to the second connecting column, the second wrapping piece is provided with a second movable channel, and the second movable channel is communicated with the second connecting column. The first wrapping piece and the second wrapping piece jointly form a wrapping cavity, and the two ends of the wrapping cavity are communicated with the first movable channel and the second movable channel respectively.

Description

Technical Field

[0001] The present disclosure relates to the field of stamping technology, and in particular to a stamping device with a double-cavity covering type. Background Art

[0002] There are two types of metal parts processing and forming: die casting and stamping. Die casting refers to placing molten metal in a mold under high pressure to form a corresponding shape, while stamping refers to the mold directly applying pressure to the metal to form the metal into a corresponding shape. Stamping is simpler than die casting. For lock metal parts, such as Figure 1 As shown, it is necessary to punch holes on the upper and lower surfaces of the metal part to form through holes at the upper and lower ends of the metal part. However, the traditional stamping device usually punches one end of the metal part, then installs and fixes the metal part, and then punches the other end of the metal part. This processing method requires the metal part to be disassembled and assembled many times, which has the problem of low efficiency.

[0003] In order to solve the above problems, a Chinese patent with application number CN202220723709.4 discloses a bidirectional stamping device for spare parts processing, wherein the mounting mechanism comprises a mounting seat and a clamping seat, a rotating shaft is provided on the support frame, one end of the rotating shaft is connected to the clamping seat, a placement cavity is provided in the clamping seat, and a locking bolt is provided on the side of the clamping seat; a first cylinder is provided on one side of the mounting seat, the first cylinder is connected to the first supporting seat, a second cylinder is provided on one side of the support frame, and the second cylinder is connected to the second supporting seat; the stamping mechanism comprises a fixed seat, a second hydraulic cylinder and a first hydraulic cylinder are provided on one side of the fixed seat, the second hydraulic cylinder and the first hydraulic cylinder respectively drive the second punch and the first punch to move; the rotating shaft is driven to rotate by a rotating mechanism; and an adjusting and positioning mechanism is installed on the clamping seat.

[0004] The punching device drives the first punch and the second punch to move respectively by the first hydraulic cylinder and the second hydraulic cylinder to perform bidirectional punching operations on the blind holes or through holes at both ends of the part, thereby improving production efficiency. However, since the part is clamped in the clamp, that is, the part is not covered by the clamp, when the part is punched by the first punch and the second punch, the part is displaced, thereby making the punching accuracy of the part low.

[0005] Therefore, there is an urgent need for a punching device that has a better fixing effect on parts and improves the punching accuracy of parts. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a double-cavity encapsulated punching device that has a better part fixing effect and improves the part punching accuracy.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A double-cavity encapsulating punching device, comprising:

[0009] An upper die mechanism and a lower die mechanism, the upper die mechanism and the lower die mechanism are respectively used to be connected to a driving mechanism, the upper die mechanism comprises an upper die assembly, a first covering member and a first punch, the upper die assembly is fixedly connected to the first punch, the upper die assembly is provided with a first connecting column, the first covering member is movably connected to the first connecting column, the first covering member is provided with a first movable channel, and the first punch is movably arranged in the first movable channel;

[0010] The lower mold mechanism includes a lower template assembly, a second covering member and a second punch. The lower template assembly is fixedly connected to the second punch. The lower template assembly is provided with a second connecting column. The second covering member is movably connected to the second connecting column. The second covering member is provided with a second movable channel. The second punch is movably arranged in the second movable channel. The first covering member and the second covering member jointly form a covering cavity. The covering cavity is used to cover parts, and both ends of the covering cavity are respectively connected to the first movable channel and the second movable channel.

[0011] In one embodiment, the upper mold mechanism also includes a guide column, which is installed on the upper mold assembly. The lower mold assembly is provided with a guide hole, and the guide column is used to move along the extension direction of the guide hole when the upper mold assembly and the lower mold assembly are closed.

[0012] In one embodiment, the upper template assembly includes a first upper template, a second upper template and a third upper template which are connected in sequence, the first upper template is used to connect to the driving mechanism, the third upper template is provided with a first accommodating cavity, the first connecting column is located in the first accommodating cavity and connected to the second upper template, the first punch is located in the first accommodating cavity and connected to the second upper template, and the first covering member is located in the first accommodating cavity and movably connected to the first connecting column.

[0013] In one embodiment, the upper template assembly also includes a first screw connection component, the third upper template is provided with a first screw connection hole, the second upper template is provided with a second screw connection hole, and the first screw connection component is sequentially passed through the first screw connection hole and the second screw connection hole to enable the third upper template to be screwed to the second upper template.

[0014] In one embodiment, the upper template assembly also includes a first elastic element, the second upper template is provided with a first avoidance groove, one end of the first elastic element is installed on the first upper template, and the other end of the first elastic element passes through the first avoidance groove and is connected to the first covering member.

[0015] In one embodiment, the first elastic element is a spring.

[0016] In one embodiment, the lower template assembly includes a first lower template, a second lower template and a third lower template which are connected in sequence, the first lower template is used to connect to the driving mechanism, the third lower template is provided with a second accommodating cavity, the second connecting column is located in the second accommodating cavity and connected to the second lower template, the second punch is located in the second accommodating cavity and connected to the second lower template, and the second covering member is located in the second accommodating cavity and movably connected to the second connecting column.

[0017] In one embodiment, the lower template assembly also includes a second screw connection component, the third lower template is provided with a third screw connection hole, the second lower template is provided with a fourth screw connection hole, and the second screw connection component is sequentially passed through the third screw connection hole and the fourth screw connection hole to enable the third lower template to be screwed to the second lower template.

[0018] In one embodiment, the lower template assembly also includes a second elastic element, the second elastic element is provided with a second avoidance groove, one end of the second elastic element is installed on the first lower template, and the other end of the second elastic element passes through the second avoidance groove and is connected to the second covering member.

[0019] In one of the embodiments, the second elastic element is a spring.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] The above-mentioned double-cavity covering stamping device has a first covering part movably connected to the first connecting column, and the second covering part movably connected to the second connecting column. The first covering part and the second covering part jointly form a covering cavity. The part is located in the covering cavity, and when the upper template assembly and the lower template assembly are molded, the first punch passes through the first movable channel to punch the upper surface of the part, and the second punch passes through the second movable channel to punch the lower surface of the part. That is, when punching the upper and lower surfaces of the part, the part is completely covered by the first covering part and the second covering part to prevent the part from shifting, that is, the fixing effect of the part is better, thereby improving the punching accuracy of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure 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 paying creative work.

[0023] Figure 1 It is a structural schematic diagram of parts of an embodiment;

[0024] Figure 2 It is a schematic structural diagram of a double-cavity enveloping punching device according to an embodiment;

[0025] Figure 3 for Figure 2 A cross-sectional view of a double-cavity encapsulated punching device shown;

[0026] Figure 4 for Figure 2 Another structural schematic diagram of a double-cavity encapsulation is shown. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The present disclosure provides a double-cavity covering stamping device, comprising an upper die mechanism and a lower die mechanism, wherein the upper die mechanism and the lower die mechanism are respectively used to be connected to a driving mechanism, wherein the upper die mechanism comprises an upper die plate assembly, a first covering member and a first punch, wherein the upper die plate assembly is fixedly connected to the first punch, wherein the upper die plate assembly is provided with a first connecting column, wherein the first covering member is movably connected to the first connecting column, wherein the first covering member is provided with a first movable channel, wherein the first punch is movably arranged in the first movable channel; wherein the lower die mechanism comprises a lower die plate assembly, a second covering member and a second punch, wherein the lower die plate assembly is fixedly connected to the second punch, wherein the lower die plate assembly is provided with a second connecting column, wherein the second covering member is movably connected to the second connecting column, wherein the second covering member is provided with a second movable channel, wherein the second punch is movably arranged in the second movable channel, wherein the first covering member and the second covering member jointly form a covering cavity, wherein the covering cavity is used to cover parts, and wherein two ends of the covering cavity are respectively connected to the first movable channel and the second movable channel.

[0031] The above-mentioned double-cavity covering stamping device has a first covering part movably connected to the first connecting column, and the second covering part movably connected to the second connecting column. The first covering part and the second covering part jointly form a covering cavity. The part is located in the covering cavity, and when the upper template assembly and the lower template assembly are molded, the first punch passes through the first movable channel to punch the upper surface of the part, and the second punch passes through the second movable channel to punch the lower surface of the part. That is, when punching the upper and lower surfaces of the part, the part is completely covered by the first covering part and the second covering part to prevent the part from shifting, that is, the fixing effect of the part is better, thereby improving the punching accuracy of the part.

[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0033] like Figures 2 to 4 As shown, a double-cavity encapsulated punching device 10 of an embodiment includes an upper die mechanism 100 and a lower die mechanism 200, and the upper die mechanism 100 and the lower die mechanism 200 are respectively used to be connected to a driving mechanism so that the upper die mechanism 100 and the lower die mechanism 200 are engaged. The upper die mechanism 100 includes an upper die plate assembly 110, a first encapsulating member 120, and a first punch 130, the upper die plate assembly 110 is fixedly connected to the first punch 130, the upper die plate assembly 110 is provided with a first connecting column 110a, the first encapsulating member 120 is movably connected to the first connecting column 110a, the first encapsulating member 120 is provided with a first movable channel, and the first punch 130 is movably disposed in the first movable channel.

[0034] Furthermore, the lower mold mechanism 200 includes a lower template assembly 210, a second covering member 220 and a second punch 230, the lower template assembly 210 is fixedly connected to the second punch 230, the lower template assembly 210 is provided with a second connecting column 210a, the second covering member 220 is movably connected to the second connecting column 210a, the second covering member 220 is provided with a second movable channel, the second punch 230 is movably arranged in the second movable channel, the first covering member 120 and the second covering member 220 jointly form a covering cavity 10b, the covering cavity 10b is used to cover the part 10a, and the two ends of the covering cavity 10b are respectively connected to the first movable channel and the second movable channel.

[0035] In this embodiment, the upper template assembly 110 is fixedly connected to the first punch 130, the lower template assembly 210 is fixedly connected to the second punch 230, the upper template assembly 110 is provided with a first connecting column 110a, the lower template assembly 210 is provided with a second connecting column 210a, the first covering member 120 is movably connected to the first connecting column 110a, and the second covering member 220 is movably connected to the second connecting column 210a. The part 10a is placed in the second covering member 220. When the upper template assembly 110 and the lower template assembly 210 are driven When the molds are closed facing each other under the drive of the dynamic mechanism, the first covering member 120 is connected to the second covering member 220 to form a covering cavity 10b. At this time, the part 10a is located in the covering cavity 10b, and the first punch 130 passes through the first movable channel to punch a hole on the upper surface of the part 10a, and the second punch 230 passes through the second movable channel to punch a hole on the lower surface of the part 10a. Since the first covering member 120 and the second covering member 220 completely cover the part 10a, the fixing effect of the part 10a is better, and displacement of the part 10a during punching is avoided.

[0036] The above-mentioned double-cavity covering stamping device 10, the first covering member 120 is movably connected to the first connecting column 110a, the second covering member 220 is movably connected to the second connecting column 210a, the first covering member 120 and the second covering member 220 jointly form a covering cavity 10b, the part 10a is located in the covering cavity 10b, and when the upper template assembly 110 and the lower template assembly 210 are molded, the first punch 130 passes through the first movable channel to punch the upper surface of the part 10a, and the second punch 230 passes through the second movable channel to punch the lower surface of the part 10a, that is, when punching the upper and lower surfaces of the part 10a, the part 10a is completely covered by the first covering member 120 and the second covering member 220 to prevent the part 10a from shifting, that is, the fixing effect of the part 10a is better, thereby improving the punching accuracy of the part 10a.

[0037] like Figure 2As shown, in one embodiment, the upper mold mechanism 100 further includes a guide column 140, which is installed on the upper mold assembly 110. The lower mold assembly 210 is provided with a guide hole, and the guide column 140 is used to move along the extension direction of the guide hole when the upper mold assembly 110 and the lower mold assembly 210 are molded. It can be understood that the upper mold assembly 110 and the lower mold assembly 210 move toward each other under the drive of the driving mechanism, and at this time, the guide column 140 passes through the guide hole to play a guiding role.

[0038] like Figure 3 and Figure 4 As shown, in one embodiment, the upper template assembly 110 includes a first upper template 111, a second upper template 112 and a third upper template 113 connected in sequence, the first upper template 111 is used to connect with the driving mechanism, the third upper template 113 is provided with a first accommodating cavity, the first connecting column 110a is located in the first accommodating cavity and connected to the second upper template 112, the first punch 130 is located in the first accommodating cavity and connected to the second upper template 112, and the first covering member 120 is located in the first accommodating cavity and movably connected to the first connecting column 110a. In this embodiment, the first upper template 111 is connected to the driving mechanism, and the two sides of the second upper template 112 are fixedly connected to the first upper template 111 and the third upper template 113 respectively, so that when the driving mechanism drives the first upper template 111 to move, the second upper template 112 and the third upper template 113 are driven to move together. Furthermore, the first covering member 120 is located in the first accommodating cavity and is movably connected to the first connecting column 110a. When the upper mold mechanism 100 and the lower mold mechanism 200 are closed, the first covering member 120 abuts against the second covering member 220, and the first covering member 120 is moved along the direction of the second upper mold plate 112 by the force of the second covering member 220 until it abuts against the second upper mold plate 112. At this time, the first punch 130 passes through the first movable channel to punch the upper surface of the part 10a.

[0039] like Figure 3 As shown, in one embodiment, the upper template assembly 110 further includes a first screw member 114, the third upper template 113 is provided with a first screw hole, the second upper template 112 is provided with a second screw hole, and the first screw member 114 is sequentially inserted into the first screw hole and the second screw hole, so that the third upper template 113 is screwed with the second upper template 112. In this embodiment, the third upper template 113 and the second upper template 112 are screwed with screws, so that the third upper template 113 is fixed with the second upper template 112. Further, the second upper template 112 is also fixed with the first upper template 111 by screws. Of course, in other embodiments, the third upper template 113 and the second upper template 112 can also be fixed by other methods, such as riveting, welding, etc.

[0040] like Figure 3 As shown, in one embodiment, the upper mold assembly 110 further includes a first elastic element 115, the second upper mold 112 is provided with a first avoidance groove, one end of the first elastic element 115 is mounted on the first upper mold 111, and the other end of the first elastic element 115 passes through the first avoidance groove and is connected to the first covering member 120. It can be understood that the first covering member 120 is elastically connected to the first elastic element 115. When the upper mold mechanism 100 and the lower mold mechanism 200 are molded, the first covering member 120 is moved along the direction of the first upper mold 111 by the force of the second covering member 220. At this time, the first elastic element 115 is in a compressed state. When the upper mold mechanism 100 and the lower mold mechanism 200 are molded, the first elastic element 115 is stretched, so that the first covering member 120 and the second covering member 220 are still in abutment, that is, the part 10a is still covered by the first covering member 120 and the second covering member 220, so as to prevent the part 10a from falling directly when the mold is opened.

[0041] In one embodiment, the first elastic element 115 is a spring, so that the first elastic element 115 is elastically connected to the first covering member 120. Of course, in other embodiments, the first elastic element 115 can also be a structure with elastic properties such as rubber or silicone.

[0042] like Figure 3 and Figure 4 As shown, in one embodiment, the lower template assembly 210 includes a first lower template 211, a second lower template 212 and a third lower template 213 connected in sequence, the first lower template 211 is used to connect with the driving mechanism, the third lower template 213 is provided with a second accommodating cavity, the second connecting column 210a is located in the second accommodating cavity and connected to the second lower template 212, the second punch 230 is located in the second accommodating cavity and connected to the second lower template 212, and the second covering member 220 is located in the second accommodating cavity and movably connected to the second connecting column 210a. In this embodiment, the first lower template 211 is connected to the driving mechanism, and the second lower template 212 is fixedly connected to the first lower template 211 and the third lower template 213 respectively, so that when the driving mechanism drives the first lower template 211 to move, the second lower template 212 and the third lower template 213 are driven to move together. Furthermore, the second covering member 220 is located in the second accommodating cavity and is movably connected to the second connecting column 210a. When the upper mold mechanism 100 and the lower mold mechanism 200 are closed, the second covering member 220 abuts against the first covering member 120. The second covering member 220 is moved along the direction of the second lower mold plate 212 by the force of the first covering member 120 until it abuts against the second lower mold plate 212. At this time, the second punch 230 passes through the second movable channel to punch the lower surface of the part 10a.

[0043] like Figure 3 As shown, in one embodiment, the lower template assembly 210 further includes a second screw member 214, the third lower template 213 is provided with a third screw hole, the second lower template 212 is provided with a fourth screw hole, and the second screw member 214 is sequentially inserted into the third screw hole and the fourth screw hole, so that the third lower template 213 is screwed with the second lower template 212. In this embodiment, the third lower template 213 and the second lower template 212 are screwed with screws, so that the third lower template 213 is fixed with the second lower template 212. Further, the second lower template 212 and the first lower template 211 can also be fixed with screws. Of course, in other embodiments, the third lower template 213 and the second lower template 212 can also be fixed by other methods, such as riveting, welding, etc.

[0044] like Figure 3 As shown, in one embodiment, the lower mold assembly 210 further includes a second elastic element 215, the second elastic element 215 is provided with a second avoidance groove, one end of the second elastic element 215 is mounted on the first lower mold 211, and the other end of the second elastic element 215 passes through the second avoidance groove and is connected to the second covering member 220. It can be understood that the second covering member 220 is elastically connected to the second elastic element 215. When the upper mold mechanism 100 and the lower mold mechanism 200 are molded, the second covering member is moved along the direction of the first lower mold 211 by the force of the first covering member 120. At this time, the second elastic element 215 is in a compressed state. When the upper mold mechanism 100 and the lower mold mechanism 200 are molded, the second elastic element 215 is stretched, so that the second covering member 220 and the first covering member 120 are still in abutment, that is, the part 10a is still covered by the second covering member 220 and the first covering member 120, so as to prevent the part 10a from falling directly when the mold is opened.

[0045] In one embodiment, the second elastic element 215 is a spring, so that the second elastic element 215 is elastically connected to the second covering member 220. Of course, in other embodiments, the second elastic element 215 can also be a structure with elastic properties such as rubber or silicone.

[0046] Compared with the prior art, the present invention has at least the following advantages:

[0047] The above-mentioned double-cavity covering stamping device 10, the first covering member 120 is movably connected to the first connecting column 110a, the second covering member 220 is movably connected to the second connecting column 210a, the first covering member 120 and the second covering member 220 jointly form a covering cavity 10b, the part 10a is located in the covering cavity 10b, and when the upper template assembly 110 and the lower template assembly 210 are molded, the first punch 130 passes through the first movable channel to punch the upper surface of the part 10a, and the second punch 230 passes through the second movable channel to punch the lower surface of the part 10a, that is, when punching the upper and lower surfaces of the part 10a, the part 10a is completely covered by the first covering member 120 and the second covering member 220 to prevent the part 10a from shifting, that is, the fixing effect of the part 10a is better, thereby improving the punching accuracy of the part 10a.

[0048] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A double-cavity encapsulated punching device, comprising an upper die mechanism and a lower die mechanism, wherein the upper die mechanism and the lower die mechanism are respectively used to be connected to a driving mechanism, characterized in that: The upper mold mechanism includes an upper mold assembly, a first covering member and a first punch, wherein the upper mold assembly is fixedly connected to the first punch, the upper mold assembly is provided with a first connecting column, the first covering member is movably connected to the first connecting column, the first covering member is provided with a first movable channel, and the first punch is movably arranged in the first movable channel; The lower mold mechanism includes a lower template assembly, a second covering member and a second punch. The lower template assembly is fixedly connected to the second punch. The lower template assembly is provided with a second connecting column. The second covering member is movably connected to the second connecting column. The second covering member is provided with a second movable channel. The second punch is movably arranged in the second movable channel. The first covering member and the second covering member jointly form a covering cavity. The covering cavity is used to cover parts, and both ends of the covering cavity are respectively connected to the first movable channel and the second movable channel.

2. The double-cavity encapsulating punching device according to claim 1, characterized in that: The upper mold mechanism also includes a guide column, which is installed on the upper mold assembly. The lower mold assembly is provided with a guide hole. The guide column is used to move along the extension direction of the guide hole when the upper mold assembly and the lower mold assembly are closed.

3. The double-cavity encapsulating punching device according to claim 1, characterized in that: The upper template assembly includes a first upper template, a second upper template and a third upper template which are connected in sequence, the first upper template is used to connect with the driving mechanism, the third upper template is provided with a first accommodating cavity, the first connecting column is located in the first accommodating cavity and connected to the second upper template, the first punch is located in the first accommodating cavity and connected to the second upper template, and the first covering member is located in the first accommodating cavity and movably connected to the first connecting column.

4. The double-cavity encapsulating punching device according to claim 3, characterized in that: The upper template assembly also includes a first screw connection member, the third upper template is provided with a first screw connection hole, the second upper template is provided with a second screw connection hole, and the first screw connection member is sequentially passed through the first screw connection hole and the second screw connection hole to enable the third upper template to be screwed to the second upper template.

5. The double-cavity encapsulating punching device according to claim 3, characterized in that: The upper template assembly also includes a first elastic element, the second upper template is provided with a first avoidance groove, one end of the first elastic element is installed on the first upper template, and the other end of the first elastic element passes through the first avoidance groove and is connected to the first covering member.

6. The double-cavity encapsulating punching device according to claim 5, characterized in that: The first elastic element is a spring.

7. The double-cavity encapsulating punching device according to claim 1, characterized in that: The lower template assembly includes a first lower template, a second lower template and a third lower template which are connected in sequence, the first lower template is used to connect to the driving mechanism, the third lower template is provided with a second accommodating cavity, the second connecting column is located in the second accommodating cavity and connected to the second lower template, the second punch is located in the second accommodating cavity and connected to the second lower template, and the second covering member is located in the second accommodating cavity and movably connected to the second connecting column.

8. The double-cavity encapsulating punching device according to claim 7, characterized in that: The lower template assembly also includes a second screw connection member, the third lower template is provided with a third screw connection hole, the second lower template is provided with a fourth screw connection hole, and the second screw connection member is sequentially passed through the third screw connection hole and the fourth screw connection hole to enable the third lower template to be screwed to the second lower template.

9. The double-cavity encapsulating punching device according to claim 7, characterized in that: The lower template assembly also includes a second elastic element, which is provided with a second avoidance groove. One end of the second elastic element is installed on the first lower template, and the other end of the second elastic element passes through the second avoidance groove and is connected to the second covering member.

10. The double-cavity encapsulating punching device according to claim 9, characterized in that: The second elastic element is a spring.

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