Split inclined punching device and display backboard forming die
By using the wedge-shaped splicing and wire cutting of the split oblique punching device, the problem of easy breakage of the insert and punch in the oblique punching device was solved, achieving precise positioning and rapid assembly, and reducing production costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN RENDING MOULD CO LTD
- Filing Date
- 2025-05-24
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, the inclined punch device adopts an integrated inclined punch slider body, which makes the insert and punch easy to break during use, and the processing time is long, the cost is high, and the positioning error is large.
The device employs a split oblique punching mechanism, comprising a wedge-shaped oblique punching slider seat and an oblique punching slider cover, forming a square oblique punching slider body. An oblique punching insert is inserted into an oblique punching groove on the oblique punching slider seat, with the punch aligned with the punch hole inserted into the oblique punching slider cover. Wire cutting is used to improve precision and stability.
It achieves precise positioning of the angled punch and punch in the set position, avoids positional deviation, is quick to assemble and not easy to break, and reduces manufacturing costs and processing time.
Smart Images

Figure CN224157612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display back panel processing technology, and in particular to a split oblique punching device and a display back panel forming mold. Background Technology
[0002] In related technologies, the display back panel forming mold uses a slanted punching device to slant and form holes of a preset shape on the display back panel, so as to realize the drilling of the display back panel.
[0003] In related technologies, a slanted punching device is composed of an integrated slanted punch slider body and a slanted punch. When forming grooves and punch holes on the corresponding substrate using an integrated slanted punch slider body, multiple milling and milling positioning processes are required. Due to the multiple milling processes, multiple mold-setting operations are required, which will cause the accumulation of positioning errors. This will result in a large deviation between the milled grooves, irregular blind holes, and small through holes and the set positions, making it difficult for inserts and punches to be assembled into the corresponding grooves or punch holes. After assembly, the corresponding gaps are small and the misalignment is large. As a result, when using the slanted punching device to drill holes in the back panel of the display, the inserts and punches are prone to breakage. At the same time, the milling of corresponding grooves and holes on the substrate requires many processes, long processing time, severe wear of hard-cut milling cutters, large perpendicularity errors, and high manufacturing costs.
[0004] There is no effective solution to the problem that the insert and punch are prone to breakage during use in existing inclined punch devices, which use an integrated inclined punch slider body. Utility Model Content
[0005] In view of this, it is necessary to provide a split oblique punch device and a display back panel to at least solve the problem that the oblique punch device in the related art uses an integrated oblique punch slider body, and the insert and punch are easy to break during use.
[0006] In a first aspect, the present invention adopts the following technical solution: a split-type oblique punching device for a display back panel forming mold, comprising a wedge-shaped oblique punching slider seat and an oblique punching slider cover, wherein the oblique punching slider seat and the oblique punching slider cover are joined to form a square oblique punching slider body, the oblique punching slider seat is provided with an oblique punching groove, the oblique punching slider cover is provided with a punch hole penetrating the oblique punching slider cover, an oblique punch insert is provided in the oblique punching groove, the oblique punch insert is provided with a punch, and the punch is also configured to be inserted directly into the corresponding punch hole, wherein, when the display back panel forming mold is closed, the square oblique punching slider body is used to drive the oblique punch insert to carry the punch obliquely to a preset punching position; after the punch obliquely to the preset punching position, the oblique punch insert is driven to move along the oblique punching groove, so as to drive the punch to form a target hole at the preset punching position.
[0007] In some embodiments, the end face of the inclined punch slider seat opposite the inclined punch slider cover has a dovetail protrusion, and the end face of the inclined punch slider cover opposite the inclined punch slider seat has a dovetail groove adapted to the dovetail protrusion. The dovetail protrusion is embedded in the dovetail groove so that the inclined punch slider seat and the inclined punch slider cover are wedge-shaped.
[0008] In some embodiments, the dovetail protrusion includes a wavy dovetail protrusion, and the oblique punch slider seat includes the integrally formed wavy dovetail protrusion and triangular base. The top surface of the triangular base and the wavy dovetail protrusion meet to form a connecting part that splices with the dovetail groove. The dovetail groove includes a wavy tenon groove with a contour adapted to the contour of the connecting part. One of the two sides of the triangular base is configured as a mounting part. The mounting part is used to install the square oblique punch slider body on the display back panel molding mold. The oblique punch groove is configured to be perpendicular to the top surface of the triangular base, and its two ends pass through the wavy dovetail protrusion and the triangular base, respectively.
[0009] In some embodiments, the inclined punch slider seat is further provided with a first pin hole that is perpendicular to the mounting part. The first pin hole passes through the top surface of the triangular base or the wavy dovetail protrusion and connects with a second pin hole located at the matching position of the inclined punch slider cover and passing through the inclined punch slider cover. The second pin hole and the first pin hole connect to form a corresponding mounting hole. A first bolt is locked into the mounting hole and connected to the corresponding template of the display back panel forming mold, thereby matching and installing the square inclined punch slider body onto the display back panel forming mold.
[0010] In some embodiments, the angled punch includes a punch base and a punch mounting base. The punch base has a tenon protruding toward the punch mounting base. The end face of the punch mounting base opposite the punch base has a mortise that matches the tenon. The punch is mounted on the punch mounting base, wherein the tenon is locked into the mortise so that the punch base and the punch mounting base are spliced together to form the angled punch, and the punch is mounted on the angled punch.
[0011] In some embodiments, the insert base and the punch mounting base are also fixed together by locking bolts.
[0012] In some embodiments, the punch mounting base has a receiving hole extending from the bottom of the inner side of the tenon groove toward the outer side of the punch mounting base and passing through it. The punch is inserted into the corresponding receiving hole, with one end of the punch resting on the tenon tongue and the other end extending outward from the receiving hole and directly into the corresponding punch hole.
[0013] Secondly, embodiments of this application also provide a display back panel forming mold, including the split oblique punching device described in the first aspect.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This application provides a split oblique punching device and a display back panel forming mold. It adopts a split oblique punching slider seat and an oblique punching slider cover for wedge splicing and splicing into a square oblique punching slider body. By setting oblique punching grooves on the split oblique punching slider seat and inserting corresponding oblique punching inserts into the oblique punching grooves, the punches assembled on the oblique punching inserts are aligned with the punch holes set at the corresponding positions on the oblique punching slider cover. This ensures that the oblique punching inserts and punches are located in the set positions without positional deviation. After the components of the split oblique punching device are assembled, the fit clearance is good, the assembly is fast and the positioning is accurate. The oblique punching inserts and punches are not easy to break, which solves the problem of easy breakage of the inserts and punches during use in oblique punching devices that use an integrated oblique punching slider body in related technologies. Attached Figure Description
[0015] Figure 1 This is an assembly drawing of the split-type oblique punch device according to an embodiment of this application;
[0016] Figure 2 This is an exploded view of an embodiment of this application;
[0017] Figure 3 This is another exploded view of an embodiment of this application;
[0018] Figure 4 This is an exploded view of the oblique punch slider seat, oblique punch insert and punch according to an embodiment of this application;
[0019] Figure 5 This is an exploded view of the oblique punch in an embodiment of this application.
[0020] Figure Labels
[0021] 001. Connecting part; 002. Installation part;
[0022] 100. Angled punch slider seat; 101. Angled punch groove; 102. Dovetail protrusion; 103. Triangular base; 104. First pin hole;
[0023] 200. Angled punch slider cover; 201. Punch hole; 202. Dovetail groove; 203. Second pin hole;
[0024] 300. Angled insert; 31. Insert base; 32. Punch mounting base; 311. Tenon; 321. Morphological groove; 322. Accommodating hole;
[0025] 400, punch. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.
[0029] refer to Figures 1 to 5 The split-type oblique punching device of this application embodiment is used for a display back panel forming mold, including a wedge-shaped oblique punching slider seat 100 and an oblique punching slider cover 200. The oblique punching slider seat 100 and the oblique punching slider cover 200 are assembled to form a square oblique punching slider body. The oblique punching slider seat 100 is provided with an oblique punching groove 101, and the oblique punching slider cover 200 is provided with a punch hole 201 penetrating through the oblique punching slider cover 200. An oblique punch insert 300 is provided in the oblique punching groove 101, and a punch 400 is provided on the oblique punch insert 300. The punch 400 is also configured to be inserted directly into the corresponding punch hole 201.
[0030] When the display back panel forming mold is closed, the square angled punch slider body is used to drive the angled punch insert 300 to carry the punch 400 to the preset punch position.
[0031] In this embodiment, the square angled punch slider body is installed on the upper mold of the display back panel forming mold. After the forming mold is closed, the square angled punch slider body carries the punch 400 to move to contact the display back panel on the lower mold and the mold core (at this time, the display back panel is bent and stacked by the mold in the forming groove near the punch 400 extending out of the angled punch slider cover 200).
[0032] After the punch 400 is tilted to the preset punching position, the tilting punch insert 300 is driven to move along the tilting punch groove 101, so as to drive the punch 400 to form the target hole at the preset punching position.
[0033] In this embodiment, after the display back panel forming mold is closed, the punch 400 includes, but is not limited to, irregular punches and small through-hole punches. By setting two types of punches, holes of a preset shape, such as irregular holes and small through-holes, are punched out on the display back panel.
[0034] In the aforementioned split-type oblique punch device, a wedge-shaped splicing is used between a split-type oblique punch slider seat 100 and an oblique punch slider cover 200 to form a square oblique punch slider body. By setting an oblique punch groove 101 on the split-type oblique punch slider seat 100, and inserting a corresponding oblique punch insert 300 into the oblique punch groove 101, the punch 400 mounted on the oblique punch insert 300 is inserted directly into the punch hole 201 at the corresponding position on the oblique punch slider cover 200. This ensures that the oblique punch insert 300 and the punch 400 are positioned in the set position without any positional deviation. After the components of the split-type oblique punch device are assembled, the fit clearance is good, the assembly is fast and the positioning is accurate. The oblique punch insert and the punch are not easy to break, which solves the problem of easy breakage of the insert and the punch during use in oblique punch devices that use an integrated oblique punch slider body in related technologies.
[0035] It should be noted that the split-type oblique punch device of this application embodiment uses wire cutting to process the oblique punch slider seat 100 and oblique punch slider cover 200, as well as the oblique punch groove 101 and punch hole 201. Wire cutting provides high precision, and all processing can be completed in a single process, reducing manufacturing costs. Because the split components are processed by wire cutting, they are easy to assemble, and the installation position deviation of the oblique punch insert 300 and punch 400 is small, with good gaps between the components. This avoids the oblique punch insert 300 and punch 400 from being broken during use due to large position deviations after assembly of the parts of the split-type oblique punch device. The accessories of the split-type oblique punch device have a long service life.
[0036] To achieve a wedge-shaped connection between the inclined slide block seat 100 and the inclined slide block cover 200, in some embodiments, the end face of the inclined slide block seat 100 facing the inclined slide block cover 200 is provided with a dovetail protrusion 102, and the end face of the inclined slide block cover 200 facing the inclined slide block seat 100 is provided with a dovetail groove 202 that matches the dovetail protrusion 102. The dovetail protrusion 102 is embedded in the dovetail groove 202 so that the inclined slide block seat 100 and the inclined slide block cover 200 are wedge-shaped connected.
[0037] It is understandable that this configuration, through the combination of the dovetail protrusion 102 and the dovetail groove 202, enables the separate inclined punch slider seat 100 and inclined punch slider cover 200 to be quickly assembled into a square inclined punch slider body, thereby improving the efficiency of assembly.
[0038] To enable the installation of the split oblique punching device with the corresponding mold, in some embodiments, the dovetail protrusion 102 includes a wavy dovetail protrusion, and the oblique punching slider seat 100 includes an integrally formed wavy dovetail protrusion and a triangular base 103. The top surface of the triangular base 103 and the wavy dovetail protrusion are joined to form a connecting part 001 that splices with the dovetail groove 202. The dovetail groove 202 includes a wavy tenon groove whose contour is adapted to the contour of the connecting part. One of the two sides of the triangular base 103 is set as a mounting part 002. The mounting part 002 is used to install the square oblique punching slider body on the display back panel forming mold. The oblique punching groove 101 is set in a position perpendicular to the top surface of the triangular base 103, and its two ends pass through the wavy dovetail protrusion and the triangular base 103 respectively.
[0039] In this embodiment, the contours of the dovetail groove 202 and the connecting portion 001 are used as the joining line of the inclined punch slider seat 100 and the inclined punch slider cover 200, and also as the dividing line for cutting out the inclined punch slider seat 100 and the inclined punch slider cover 200. In this embodiment, by setting a wavy dovetail protrusion, the joint surface of the inclined punch slider seat 100 and the inclined punch slider cover 200 when wedge splicing is increased, thereby strengthening the firmness of the connection between the inclined punch slider seat 100 and the inclined punch slider cover 200 and maintaining the stability of the split inclined punch device.
[0040] To further enhance the stability of the split oblique punching device and to firmly connect the oblique punching slider seat 100 and the oblique punching slider cover 200, in some embodiments, the oblique punching slider seat 100 is further provided with a first pin hole 104 provided by the vertical mounting part. The first pin hole 104 passes through the top surface of the triangular base 103 or the wavy dovetail protrusion and mates with a second pin hole 203 provided at the matching position of the oblique punching slider cover 200 and passes through the oblique punching slider cover 200. The second pin hole 203 and the first pin hole 104 mate to form a corresponding mounting hole. A first bolt (not assembled in the figure) is locked into the mounting hole and the first bolt is connected to the corresponding template of the display back panel forming mold, so that the square oblique punching slider body is installed on the display back panel forming mold.
[0041] To assemble the angled punch 300, in some embodiments, the angled punch 300 includes a punch base 31 and a punch mounting base 32. The punch base 31 is provided with a tenon 311 protruding toward the punch mounting base 32. The end face of the punch mounting base 32 opposite to the punch base 31 is provided with a mortise 321 that matches the tenon 311. The punch 400 is disposed on the punch mounting base 32, wherein the tenon 311 is locked into the mortise 321 so that the punch base 31 and the punch mounting base 32 are spliced together to form the angled punch 300, and the punch 400 is installed on the angled punch 300.
[0042] Understandably, this design, employing a split insert base 31 and punch mounting base 32, and using tenons and mortises 311 and mortises 321, allows for the rapid assembly of the angled punch insert 300. Furthermore, the split manufacturing of the insert base 31 and punch mounting base 32 reduces processing steps, facilitates parts processing, lowers the installation difficulty when assembling the punch 400, and minimizes the positional deviation of the angled punch insert 300 after assembly. This prevents the angled punch insert 300 and punch 400 from breaking during use, reduces the frequency of replacement of corresponding mold parts, and lowers production costs.
[0043] In this embodiment, in order to securely connect the insert base 31 and the punch mounting base 32, in some embodiments, the insert base 31 and the punch mounting base 32 are also fixedly connected by locking bolts.
[0044] In order to assemble the punch 400 onto the oblique punch 300, in some embodiments, the punch mounting base 32 is provided with a receiving hole 322 extending from the bottom of the inner side of the tenon 321 toward the outer side of the punch mounting base 32 and passing through it. The punch 400 passes through the corresponding receiving hole 322, with one end of the punch 400 resting on the tenon tongue 311 and the other end extending outward from the receiving hole 322 and facing the corresponding punch hole 201.
[0045] This application embodiment also provides a display back panel forming mold using the split oblique punch device in the above embodiment to punch holes in the display back panel.
[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0047] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.
Claims
1. A split-type oblique punching device for forming a display back panel mold, characterized in that, The system includes a wedge-shaped, spliced oblique punch slider seat (100) and an oblique punch slider cover (200). The oblique punch slider seat (100) and the oblique punch slider cover (200) are spliced together to form a square oblique punch slider body. The oblique punch slider seat (100) has an oblique punch groove (101), and the oblique punch slider cover (200) has a punch hole (201) penetrating through it. An oblique punch insert (300) is provided within the oblique punch groove (101), and a punch (400) is provided on the oblique punch insert (300). The punch (400) is also configured to be inserted directly into the corresponding punch hole (201). When the display back panel forming mold is closed, the square oblique punch slider body is used to drive the oblique punch insert (300) to carry the punch (400) obliquely to the preset punch position; After the punch (400) is angled to the preset punching position, the angled punch insert (300) is driven to move along the angled punch groove (101) to drive the punch (400) to form the target hole at the preset punching position.
2. The split-type inclined punch device according to claim 1, characterized in that, The oblique punch slider seat (100) has a dovetail protrusion (102) on the end face opposite to the oblique punch slider cover (200), and the oblique punch slider cover (200) has a dovetail groove (202) that matches the dovetail protrusion (102) on the end face opposite to the oblique punch slider seat (100). The dovetail protrusion (102) is embedded in the dovetail groove (202) so that the oblique punch slider seat (100) and the oblique punch slider cover (200) are wedge-shaped.
3. The split-type inclined punch device according to claim 2, characterized in that, The dovetail protrusion (102) includes a wavy dovetail protrusion. The oblique punch slider seat (100) includes the integrally formed wavy dovetail protrusion and triangular base (103). The top surface of the triangular base (103) and the wavy dovetail protrusion are joined to form a connecting part that splices with the dovetail groove (202). The dovetail groove (202) includes a wavy tenon groove whose outline is adapted to the outline of the connecting part. One of the two sides of the triangular base (103) is set as a mounting part. The mounting part is used to install the square oblique punch slider body on the display back panel forming mold. The oblique punch groove (101) is set in a position perpendicular to the top surface of the triangular base (103), and both ends pass through the wavy dovetail protrusion and the triangular base (103) respectively.
4. The split-type oblique punch device according to claim 3, characterized in that, The inclined punch slider seat (100) is also provided with a first pin hole (104) perpendicular to the mounting part. The first pin hole (104) passes through the top surface of the triangular base (103) or the wavy dovetail protrusion and is connected to a second pin hole (203) located at the matching position of the inclined punch slider cover (200) and passing through the inclined punch slider cover (200). The second pin hole (203) and the first pin hole (104) are connected to form a corresponding mounting hole. A first bolt is locked in the mounting hole and the first bolt is connected to the corresponding template of the display back panel forming mold, so that the square inclined punch slider body is installed on the display back panel forming mold.
5. The split-type inclined punch device according to claim 1, characterized in that, The oblique punch (300) includes a punch base (31) and a punch mounting base (32). The punch base (31) is provided with a tenon (311) protruding toward the punch mounting base (32). The end face of the punch mounting base (32) opposite to the punch base (31) is provided with a mortise (321) that matches the tenon (311). The punch (400) is disposed on the punch mounting base (32). The tenon (311) is locked into the mortise (321) so that the punch base (31) and the punch mounting base (32) are spliced together to form the oblique punch (300), and the punch (400) is installed on the oblique punch (300).
6. The split-type inclined punch device according to claim 5, characterized in that, The insert base (31) and the punch mounting base (32) are also fixedly connected by locking bolts.
7. The split-type inclined punch device according to claim 5, characterized in that, The punch mounting base (32) has a receiving hole (322) extending from the bottom of the inner side of the mortise (321) toward the outer side of the punch mounting base (32) and passing through it. The punch (400) is inserted into the corresponding receiving hole (322), and one end of the punch (400) rests on the tenon (311), while the other end extends outward from the receiving hole (322) and is inserted into the corresponding punch hole (201).
8. A mold for forming a display back panel, characterized in that, Includes the split-type oblique punch device as described in any one of claims 1 to 7.