Mask machine embossing mold convenient to replace

Abstract

The utility model provides a mask machine embossing mold convenient to replace, and belongs to the technical field of mask machine embossing molds. The mask machine embossing mold convenient to replace comprises a mold mounting rack, a mold mounting groove, a sliding groove, an embossing mold body, a protruding block, a mold body sliding guide support and a mold body sliding guide groove. In the dismounting and mounting process, a protruding block at the lower end of the embossing die body slides in a die body sliding guide groove in a die body sliding guide support, firstly, the embossing die body needing to be replaced is dismounted, and the dismounted embossing die body slides out of a die mounting groove along the die body sliding guide groove; the to-be-replaced embossing die body slides into the die mounting groove along the die body sliding guide groove, and finally, the to-be-replaced embossing die body is fixedly connected with the die mounting groove, so that up-down moving in the process of detaching and replacing the embossing die body is avoided, horizontal sliding is used for replacing, and the operation is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of embossing molds for mask machines, in particular to an embossing mold for mask machines which is easy to replace. Background Art

[0002] The roller used in mask machines is also called an embossing roller. The embossing roller generally has a spike-shaped raised ring on the surface of an ordinary roller. When the equipment reaches a high temperature, the embossing roller rolls on the mask cloth to press holes in the mask cloth.

[0003] When the mask machine of the prior art needs to emboss different styles of patterns, the staff needs to replace the embossing rollers with different patterns. The embossing rollers need to be moved up and down during the disassembly and replacement process, which is very troublesome to operate. Utility Model Content

[0004] The utility model aims to provide an embossing die for a mask machine which is easy to replace. The device solves the technical problem that the embossing roller needs to be moved up and down during disassembly and replacement, which is relatively troublesome.

[0005] The utility model provides an embossing die for a mask machine which is easy to replace, comprising a die mounting frame,

[0006] A mold installation groove is provided at the upper ends of the front and rear side walls of the mold installation frame;

[0007] The bottom surface of the mold installation groove is provided with slide grooves on both sides in the length direction, and the slide grooves penetrate the mold installation frame from front to back;

[0008] The embossing die body has a protrusion integrally formed at the lower end corresponding to the slide groove, and the protrusion is inserted into the corresponding slide groove;

[0009] A mold body sliding guide bracket, which includes a mold body sliding guide groove;

[0010] The embossing die body to be replaced slides out of the die installation groove along the die body sliding guide groove through the lower end protrusion;

[0011] The embossing die body to be replaced slides into the die installation groove along the die body sliding guide groove through the lower end protrusion;

[0012] The embossing die body can be detachably assembled in the die installation groove.

[0013] As a further optimization solution, in order to facilitate the disassembly and replacement of the embossing die body, the die body sliding guide bracket includes:

[0014] Mounting bracket;

[0015] The mold body sliding guide groove is provided on the upper surface of the mounting bracket;

[0016] The end of the mounting bracket is fitted with the outer wall of the mold mounting frame, and the discharge port of the sliding guide groove of the mold body is overlapped and connected with the corresponding sliding groove.

[0017] As a further optimization solution, in order to accommodate the disassembled embossing die body and the embossing die body to be replaced, and facilitate the movement of the disassembled embossing die body and the replaced embossing die body, the die body sliding guide groove includes:

[0018] There are two inlet and outlet guide grooves distributed in parallel, and the two inlet and outlet guide grooves are opened on the upper surface of the mounting bracket along the length direction;

[0019] The two feeding and discharging guide grooves are respectively overlapped and communicated with the corresponding chute;

[0020] The mold body receiving guide grooves are arranged in parallel in at least two groups, and two of the mold body receiving guide grooves form one group;

[0021] The mold body receiving guide groove is opened on the upper surface of the mounting bracket along the width direction, and the mold body receiving guide groove is communicated with the two material inlet and outlet guide grooves.

[0022] As a further optimization solution, in order to facilitate mobile use, the mounting bracket includes:

[0023] A rectangular table top, wherein the mold body sliding guide groove is provided on the upper surface of the rectangular table top;

[0024] The bottom surface of the rectangular table top is evenly and fixedly equipped with supporting legs, and the lower ends of the supporting legs are fixedly equipped with self-locking universal wheels.

[0025] As a further optimization solution, in order to limit the placement position of the mounting bracket and ensure that the discharge port of the sliding guide groove of the mold body coincides with and communicates with the corresponding slide groove, a limit plate is fixedly installed on the outer wall of the mold mounting frame;

[0026] When the edge of the discharging end of the mounting bracket abuts against the limit plate and the outer wall of the mold mounting frame, the discharging port of the sliding guide groove of the mold body overlaps and communicates with the corresponding sliding groove.

[0027] As a further optimization scheme, in order to disassemble and replace the embossing die body as a whole, the embossing die body comprises:

[0028] A mold body mounting structure, which can be detachably mounted in the front and rear mold mounting grooves;

[0029] The middle parts of the front and rear sides of the mold body mounting structure are both embedded with bearing seats;

[0030] The inner ring surfaces of the front and rear bearing seats are fixedly equipped with round rollers;

[0031] The outer wall of the round roller is equipped with an embossing position adjustment structure.

[0032] As a further optimization solution, in order to facilitate the overall removal and installation from the mold installation groove, the mold body installation structure includes:

[0033] There are two mounting plates arranged in parallel in front and back, and the two mounting plates are plugged into the mold mounting grooves on the same side;

[0034] A connecting ear plate is integrally formed on the upper edge of the outer wall of the mounting plate;

[0035] A connecting groove is provided at the upper end of the inner wall of the mold installation groove corresponding to the connecting ear plate, and the connecting ear plate is inserted into the connecting groove;

[0036] A fixing bolt is screwed between the connecting ear plate and the bottom surface of the connecting groove.

[0037] As a further optimization scheme, in order to facilitate the adjustment of the position of the embossing roller on the outer wall of the round roller, different areas of the mask cloth are embossed, and the embossing position adjustment structure includes:

[0038] An embossing roller is sleeved on the middle part of the outer wall of the round roller;

[0039] Limiting rings, of which there are two;

[0040] The limiting ring is sleeved on the outer wall of the round roller, and the two limiting rings are respectively against the front and rear end surfaces of the embossing roller;

[0041] The outer wall of the round roller is evenly provided with threaded holes along the length direction;

[0042] The outer wall of the limiting ring is threadedly connected with a limiting bolt, and the end of the limiting bolt is threadedly connected in the corresponding threaded hole.

[0043] As a further optimization scheme, in order to prevent the nut of the limiting bolt from protruding from the outer wall surface of the limiting ring and affecting the embossing operation of the embossing roller, a bolt nut receiving groove is opened on the outer wall of the limiting ring, and the nut of the limiting bolt is inserted into the bolt nut receiving groove.

[0044] As a further optimization scheme, in order to limit and guide the sliding position of the embossing roller on the round roller so that the limit bolt can be more conveniently screwed with the threaded hole, a sliding guide structure is installed between the outer wall of the round roller and the inner wall of the embossing roller, and the sliding guide structure includes:

[0045] A guide groove is provided on the outer wall of the roller along the length direction;

[0046] A guide block is integrally formed on the inner wall of the embossing roller corresponding to the guide groove, and the guide block is slidably assembled in the guide groove.

[0047] The utility model provides an embossing die for a mask machine that is easy to replace through improvement. Compared with the prior art, it has the following improvements and advantages:

[0048] The device installs and disassembles the embossing die body as a whole in the die installation groove. During the disassembly and installation process, the protrusion at the lower end of the embossing die body slides in the die body sliding guide groove on the die body sliding guide bracket. The embossing die body to be replaced is first disassembled, and the disassembled embossing die body slides out of the die installation groove along the die body sliding guide groove; then the embossing die body to be replaced is slid into the die installation groove along the die body sliding guide groove, and finally the embossing die body to be replaced is fixedly connected with the die installation groove, thereby eliminating the need for up and down movement of the embossing die body during disassembly and replacement, and replacing it with horizontal sliding makes the operation more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 It is a schematic diagram of the structure of the utility model;

[0051] Figure 2 This is a schematic diagram of the structure of the mold body sliding guide bracket of the utility model;

[0052] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0053] Figure 4 It is a structural schematic diagram of the sliding guide structure of the utility model.

[0054] Description of reference numerals:

[0055] 1-mold mounting frame, 2-mold mounting groove, 3-embossing mold body, 31-mold body mounting structure, 311-mounting plate, 312-connecting groove, 313-connecting ear plate, 314-fixing bolt, 32-bearing seat, 33-round roller, 34-embossing position adjustment structure, 341-embossing roller, 342-limiting ring, 343-threaded hole, 344-limiting bolt, 4-mold body sliding guide bracket, 41-mounting bracket, 411-rectangular table board, 412-leg, 413-self-locking universal wheel, 42-mold body sliding guide groove, 421-mold body storage guide groove, 422-feeding and discharging guide groove, 5-limiting plate, 6-slide groove, 7-sliding guide structure, 71-guide groove, 72-guide block. DETAILED DESCRIPTION

[0056] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0058] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0059] See also Figure 1-4 The utility model provides a technical solution: an embossing mold for a mask machine that is easy to replace, comprising a mold mounting frame 1,

[0060] A mold installation groove 2 is provided at the upper ends of the front and rear side walls of the mold installation frame 1;

[0061] Slide grooves 6 are provided on both sides of the bottom surface of the mold installation groove 2 in the length direction, and the slide grooves 6 penetrate the mold installation frame 1 from front to back;

[0062] The embossing die body 3 has a protrusion integrally formed at its lower end corresponding to the slide groove 6, and the protrusion is inserted into the corresponding slide groove 6, and the discharge port of the slide guide groove 42 of the die body overlaps and communicates with the corresponding slide groove 6;

[0063] The mold body sliding guide bracket 4 includes a mold body sliding guide groove 42;

[0064] The embossing mold body 3 to be replaced slides out of the mold installation groove 2 along the mold body sliding guide groove 42 through the lower end protrusion, and the disassembled embossing mold body 3 slides out of the mold installation groove 2 along the mold body sliding guide groove 42;

[0065] The embossing mold body 3 to be replaced slides into the mold installation groove 2 along the mold body sliding guide groove 42 through the lower end protrusion, and the embossing mold body 3 to be replaced slides into the mold installation groove 2 along the mold body sliding guide groove 42;

[0066] The embossing die body 3 can be detachably assembled in the die mounting groove 2. This detachable assembly is achieved by screwing with bolts, and the disassembly is convenient.

[0067] In some embodiments, in order to facilitate the disassembly and replacement of the embossing die body 3, the die body sliding guide bracket 4 includes:

[0068] The mounting bracket 41 acts as a carrier for the sliding guide groove 42 of the mold body and is designed separately from the mold mounting frame 1, so that it can be installed or not;

[0069] The mold body sliding guide groove 42 is provided on the upper surface of the mounting bracket 41;

[0070] The end of the mounting bracket 41 is in contact with the outer wall of the mold mounting frame 1 , and the discharge port of the mold body sliding guide groove 42 is overlapped and communicated with the corresponding sliding groove 6 .

[0071] In some embodiments, in order to accommodate the disassembled embossing die body 3 and the embossing die body 3 to be replaced, and facilitate the movement of the disassembled embossing die body 3 and the replaced embossing die body 3, the die body sliding guide groove 42 includes;

[0072] There are two inlet and outlet guide grooves 422 distributed in parallel, and the two inlet and outlet guide grooves 422 are opened on the upper surface of the mounting bracket 41 along the length direction;

[0073] The two inlet and outlet guide grooves 422 overlap and communicate with the corresponding chute 6 respectively;

[0074] The mold body receiving guide grooves 421 are arranged in parallel in at least two groups, and two mold body receiving guide grooves 421 form one group;

[0075] The mold body receiving guide groove 421 is opened on the upper surface of the mounting bracket 41 along the width direction, and the mold body receiving guide groove 421 is connected to the two material inlet and outlet guide grooves 422 .

[0076] The mold body storage guide groove 421 always keeps one group empty, and the empty group is used to store the disassembled embossing mold body 3. The embossing mold body 3 to be replaced slides out from the mold body storage guide groove 421 and enters the feed in and out guide groove 422, and enters the mold mounting groove 2 along the feed in and out guide groove 422 for fixed connection.

[0077] In some embodiments, in order to facilitate mobile use, the mounting bracket 41 includes:

[0078] A rectangular table top 411, a mold body sliding guide groove 42 is provided on the upper surface of the rectangular table top 411;

[0079] The bottom surface of the rectangular table top 411 is evenly fixed with legs 412, and the lower ends of the legs 412 are fixed with self-locking universal wheels 413. The self-locking universal wheels 413 facilitate the movement of the mounting bracket 41 and can be self-lockingly fixed after being moved to a specified position.

[0080] In some embodiments, in order to limit the placement position of the mounting bracket 41 and ensure that the discharge port of the mold body sliding guide groove 42 coincides with and communicates with the corresponding slide groove 6, a limit plate 5 is fixedly installed on the outer wall of the mold mounting frame 1;

[0081] When the edge of the discharging end of the mounting bracket 41 abuts against the limiting plate 5 and the outer wall of the mold mounting frame 1 , the discharging port of the mold body sliding guide groove 42 overlaps and communicates with the corresponding sliding groove 6 .

[0082] In some embodiments, in order to disassemble and replace the embossing die body 3 as a whole, the embossing die body 3 includes:

[0083] The mold body mounting structure 31 can be detachably mounted in the front and rear mold mounting grooves 2;

[0084] The middle parts of both the front and rear sides of the mold body mounting structure 31 are embedded with bearing seats 32;

[0085] The inner ring surface of the front and rear bearing seats 32 is fixedly equipped with a round roller 33. The round roller 33 and the embossing position adjustment structure 34 thereon are rotatably connected to the mold body mounting structure 31 through the bearing seats 32 at both ends. In actual use, the round roller 33 is rotated by driving the end portions.

[0086] The outer wall of the round roller 33 is equipped with an embossing position adjustment structure 34 , which can conveniently adjust the fixed position of the embossing roller 341 .

[0087] In some embodiments, in order to facilitate the overall removal and installation from the mold installation groove 2, the mold body installation structure 31 includes:

[0088] There are two mounting plates 311 arranged in parallel in the front and rear, and the two mounting plates 311 are inserted into the mold mounting groove 2 on the same side;

[0089] A connecting ear plate 313 is integrally formed on the upper edge of the outer wall of the mounting plate 311;

[0090] A connection groove 312 is provided at the upper end of the inner wall of the mold installation groove 2 corresponding to the connection ear plate 313, and the connection ear plate 313 is inserted into the connection groove 312;

[0091] A fixing bolt 314 is screwed between the connecting ear plate 313 and the bottom surface of the connecting groove 312. By removing the fixing bolt 314, the mounting plates 311 on both sides and the components mounted thereon can be removed together, and the installation of these components can be completed by reverse operation.

[0092] In some embodiments, in order to facilitate the adjustment of the position of the embossing roller 341 on the outer wall of the round roller 33 and emboss different areas of the mask cloth, the embossing position adjustment structure 34 includes:

[0093] The embossing roller 341 is sleeved on the middle part of the outer wall of the round roller 33;

[0094] There are two limiting rings 342;

[0095] The limiting ring 342 is sleeved on the outer wall of the round roller 33, and the two limiting rings 342 are respectively against the front and rear end surfaces of the embossing roller 341;

[0096] The outer wall of the round roller 33 is uniformly provided with threaded holes 343 along the length direction;

[0097] The outer wall of the limiting ring 342 is screwed with a limiting bolt 344, and the end of the limiting bolt 344 is screwed into the corresponding threaded hole 343. The limiting bolts 344 on both sides are screwed down, and the embossing roller 341 and the limiting rings 342 at both ends are slid together so that the screwing position of the limiting bolt 344 corresponds to the position of the new threaded hole 343, and the limiting bolt 344 is screwed into the new corresponding threaded hole 343.

[0098] In some embodiments, in order to prevent the nut of the limiting bolt 344 from protruding from the outer wall surface of the limiting ring 342 and affecting the embossing operation of the embossing roller 341, a bolt nut receiving groove is opened on the outer wall of the limiting ring 342, and the nut of the limiting bolt 344 is inserted into the bolt nut receiving groove.

[0099] In some embodiments, in order to limit the sliding position of the embossing roller 341 on the round roller 33, the limiting bolt 344 can be more conveniently screwed with the threaded hole 343, and a sliding guide structure 7 is installed between the outer wall of the round roller 33 and the inner wall of the embossing roller 341. The sliding guide structure 7 includes:

[0100] A guide groove 71 is provided on the outer wall of the roller 33 along the length direction;

[0101] A guide block 72 is integrally formed on the inner wall of the embossing roller 341 corresponding to the guide groove 71. The guide block 72 is slidably assembled in the guide groove 71. Through this sliding limit, relative rotation between the round roller 33 and the embossing roller 341 is avoided.

[0102] Working principle:

[0103] The mold body receiving guide groove 421 always keeps one group of vacancies, and the vacancies are used to store the disassembled embossing mold body 3. The disassembled embossing mold body 3 slides out of the mold installation groove 2 along the feed and discharge guide groove 422, and slides into the vacancies of the mold body receiving guide groove 421;

[0104] The embossing die body 3 to be replaced that is slid out of the die body receiving guide groove 421 enters the material inlet and outlet guide groove 422 , and enters the die installation groove 2 along the material inlet and outlet guide groove 422 for fixed connection.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An embossing die for a mask machine that is easy to replace, comprising a die mounting frame (1), characterized in that: A mold installation groove (2) is provided at the upper ends of the front and rear side walls of the mold installation frame (1); The bottom surface of the mold installation groove (2) is provided with slide grooves (6) on both sides in the length direction, and the slide grooves (6) penetrate the mold installation frame (1) from front to back; The embossing die body (3) has a protrusion integrally formed at its lower end corresponding to the slide groove (6), and the protrusion is inserted into the corresponding slide groove (6); A mold body sliding guide bracket (4), which includes a mold body sliding guide groove (42); The embossing die body (3) to be replaced is slid out of the die installation groove (2) along the die body sliding guide groove (42) through the lower end protrusion; The embossing die body (3) to be replaced slides into the die installation groove (2) along the die body sliding guide groove (42) through the lower end protrusion; The embossing die body (3) can be detachably assembled in the die installation groove (2).

2. The embossing die for a mask machine that is easy to replace according to claim 1 is characterized in that: The mold body sliding guide bracket (4) comprises: Mounting bracket (41); The mold body sliding guide groove (42) is provided on the upper surface of the mounting bracket (41); The end of the mounting bracket (41) is in contact with the outer wall of the mold mounting frame (1), and the discharge port of the mold body sliding guide groove (42) is overlapped and communicated with the corresponding sliding groove (6).

3. The embossing die for a mask machine that is easy to replace according to claim 2 is characterized in that: The mold body sliding guide groove (42) comprises: Two inlet and outlet guide grooves (422) are arranged in parallel, and the two inlet and outlet guide grooves (422) are opened on the upper surface of the mounting bracket (41) along the length direction; The two inlet and outlet guide grooves (422) are respectively overlapped and communicated with the corresponding slide grooves (6); The mold body receiving guide grooves (421) are arranged in parallel in at least two groups, and two of the mold body receiving guide grooves (421) form one group; The mold body receiving guide groove (421) is opened on the upper surface of the mounting bracket (41) along the width direction, and the mold body receiving guide groove (421) is connected to the two material inlet and outlet guide grooves (422).

4. The embossing die for a mask machine that is easy to replace according to claim 2 is characterized in that: The mounting bracket (41) comprises: A rectangular table top (411), wherein the mold body sliding guide groove (42) is provided on the upper surface of the rectangular table top (411); The bottom surface of the rectangular table top (411) is evenly and fixedly equipped with supporting legs (412), and the lower ends of the supporting legs (412) are fixedly equipped with self-locking universal wheels (413).

5. The easily replaceable embossing die for a mask machine according to claim 2, characterized in that: The outer wall of the mold mounting frame (1) is fixedly equipped with a limit plate (5); When the edge of the discharge end of the mounting bracket (41) abuts against the limit plate (5) and the outer wall of the mold mounting frame (1), the discharge port of the mold body sliding guide groove (42) overlaps and communicates with the corresponding slide groove (6).

6. The easily replaceable embossing die for a mask machine according to claim 1, characterized in that: The embossing die body (3) comprises: A mold body mounting structure (31) which can be detachably mounted in the front and rear mold mounting grooves (2); The middle parts of both the front and rear sides of the mold body mounting structure (31) are embedded with bearing seats (32); The inner annular surfaces of the front and rear bearing seats (32) are fixedly mounted with round rollers (33); The outer wall of the round roller (33) is equipped with an embossing position adjustment structure (34).

7. The easily replaceable embossing die for a mask machine according to claim 6, characterized in that: The mold body mounting structure (31) comprises: Two mounting plates (311) are arranged in parallel in the front and rear, and the two mounting plates (311) are inserted into the mold mounting groove (2) on the same side; A connecting ear plate (313) is integrally formed on the upper edge of the outer wall of the mounting plate (311); A connecting groove (312) is provided at the upper end of the inner wall of the mold installation groove (2) corresponding to the connecting ear plate (313), and the connecting ear plate (313) is inserted into the connecting groove (312); A fixing bolt (314) is screwed between the connecting ear plate (313) and the bottom surface of the connecting groove (312).

8. The easily replaceable embossing die for a mask machine according to claim 6, characterized in that: The embossing position adjustment structure (34) comprises: An embossing roller (341) is sleeved on the middle part of the outer wall of the round roller (33); Limiting rings (342), which are two in number; The limiting ring (342) is sleeved on the outer wall of the round roller (33), and the two limiting rings (342) are respectively pressed against the front and rear end surfaces of the embossing roller (341); The outer wall of the round roller (33) is evenly provided with threaded holes (343) along the length direction; The outer wall of the limiting ring (342) is threadedly connected to a limiting bolt (344), and the end of the limiting bolt (344) is threadedly connected to the corresponding threaded hole (343).

9. The easily replaceable embossing die for a mask machine according to claim 8, characterized in that: A bolt nut receiving groove is provided on the outer wall of the limiting ring (342), and the nut of the limiting bolt (344) is inserted into the bolt nut receiving groove.

10. The easily replaceable embossing die for a mask machine according to claim 8, characterized in that: A sliding guide structure (7) is installed between the outer wall of the round roller (33) and the inner wall of the embossing roller (341), and the sliding guide structure (7) comprises: A guide groove (71) is provided on the outer wall of the round roller (33) along the length direction; A guide block (72) is integrally formed on the inner wall of the embossing roller (341) corresponding to the guide groove (71), and the guide block (72) is slidably assembled in the guide groove (71).

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