Embossing and puncturing integrated die

Abstract

The utility model relates to the technical field of rotary die cutting, in particular to an embossing and puncturing integrated die which comprises a roller sleeve, a plurality of printing protrusions are arranged on the roller sleeve in the circumferential direction, a mounting groove is formed in the middle of each printing protrusion, and a puncturing module is arranged in each mounting groove. The puncture module comprises a module body, puncture needles, top holes and unthreaded holes are arranged on the module body, protective rings are arranged at two ends of the roller sleeve, the tops of the printed protrusions are as high as the tops of the protective rings, and the tops of the puncture needles are higher than the tops of the protective rings. The utility model provides an embossing and puncturing integrated die which can solve the problem that products machined in the prior art are high in rejection rate.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary die cutting, in particular to an embossing and puncturing integrated die. Background Art

[0002] In order to ensure better penetration and leakage prevention effects, sanitary products, such as sanitary napkins, often have patterns on the surface of the sanitary napkin close to the skin for diversion, and multiple leakage holes are set in the middle of the pattern to facilitate liquid leakage into the absorbent material in the middle layer of the sanitary napkin, thereby preventing side leakage.

[0003] In the existing sanitary napkin processing process, in order to improve the processing efficiency of patterns and leakage holes, a printing mold and a leakage hole puncture mold are used in combination. For example, the prior art, publication number CN219171130U, discloses a puncture guide roller, a guide roller device and a rotary die-cutting assembly, including a roller body, the outer circumferential surface of the roller body is provided with a groove and a plurality of printed protrusions forming a pattern; an insert, the top of the insert is provided with a needle; a height adjustment device, the insert is set in the groove through the height adjustment device, the height adjustment device is used to raise and lower the insert, and then adjust the height difference between the needle and the printed protrusion, wherein the top of the needle is lower than the top of the printed protrusion. This prior art can be used to process patterns and leakage holes at the same time.

[0004] However, the prior art still has the following technical problems:

[0005] 1. There is a height difference between the needle punch and the printed protrusion in the prior art, and the top of the needle punch is lower than the top of the printed protrusion. This design is prone to the problem that when the needle punch is used to process the leakage hole, the amount of penetration is not enough, so the processed leakage hole is too small and cannot meet the leakage requirements, thereby reducing the quality of the product and increasing the scrap rate;

[0006] 2. Due to the lack of protective devices in the prior art, the patterns and needles are in direct hard contact with the processing support surface during processing, resulting in increased wear of the printed protrusions and needles, reduced service life, and increased scrap rate;

[0007] 3. In order to ensure a certain structural strength and puncture effect, the existing acupuncture technology often adopts a truncated cone or conical design, which makes the acupuncture root occupy a large area, the space utilization rate is not high, and the rationality of its layout is reduced;

[0008] 4. The prior art uses a height-adjustable insert to adjust the height difference between the needle-punched and printed protrusions, which can easily lead to inconsistent needle-punched heights due to failure of the height adjustment device, resulting in uneven depths of the processed leakage holes, thereby reducing product quality and increasing scrap rate. Utility Model Content

[0009] The utility model provides an embossing and puncturing integrated die, which can solve the problem of high scrap rate of products processed by the prior art.

[0010] This application provides the following technical solutions:

[0011] An integrated embossing and puncturing mold comprises a roller sleeve, a plurality of printing areas are circumferentially arranged in the middle of the roller sleeve, a plurality of printing protrusions are arranged in each printing area, a mounting groove is opened in the middle of the printing area, a puncturing module is arranged in the mounting groove; the puncturing module comprises a module body, a puncturing needle, a top hole and a light hole are arranged on the module body, protective rings are arranged at both ends of the roller sleeve, the top of the printing protrusion is at the same height as the top of the protective ring, and the top of the puncturing needle is higher than the top of the protective ring.

[0012] Beneficial effects:

[0013] 1. The roller sleeve is provided with multiple printing areas in the circumference, each printing area is provided with multiple printing protrusions, a mounting groove is opened in the middle of the printing area, and a puncture module is provided in the mounting groove. Multiple printing areas can effectively improve the utilization rate of the roller sleeve, and multiple printing protrusions can be combined into various patterns according to needs. The provision of printing protrusions and puncture modules can realize the simultaneous processing of printing and leakage holes, thereby improving processing efficiency. The puncture module includes a module body, and the module body is provided with a puncture needle, a top hole and a light hole. The module body is used for detachable installation in the mounting groove, and the puncture needle on the module body is used to process the leakage hole. The top hole is used for disassembling the puncture module, and screwing in the screw to push the puncture module out of the mounting groove, thereby improving the disassembly efficiency. The light hole is used for screwing in the screw to fix the puncture module in the mounting groove.

[0014] Compared with the prior art, the height adjustment device is reduced, and the design of directly fixing the puncture module as a whole in the installation groove with screws ensures the reasonable layout of the puncture needle, and there will be no situation where the depth of the leakage holes on the processed product varies due to height adjustment failure.

[0015] 2. Protective rings are set at both ends of the roller sleeve, and the top of the printed protrusion is at the same height as the top of the protective ring. When the roller sleeve is rotating, the protective ring can be used to protect the printed protrusion to avoid excessive wear of the printed protrusion.

[0016] 3. The top of the puncture needle is higher than the top of the protective ring. The puncture needle can penetrate the processing material to ensure the processing quality of the leakage hole, so that the processed product has a better printing pattern and a leakage hole that meets the leakage requirements, thereby effectively ensuring the quality of the product.

[0017] Furthermore, the module body is a strip-shaped block with one side bent and convex, and a puncture needle, a top hole and a light hole are arranged on the convex side surface of the strip-shaped block.

[0018] Beneficial effect: The module body is set as a strip block with one side bent and convex, so that after the module is installed in the installation groove, the bent side can be in line with the circumferential surface of the roller sleeve, thereby ensuring the puncture effect of the puncture needle set on the convex side surface of the strip block when the roller sleeve rotates. And the top hole and the light hole are set from this side to facilitate the disassembly and installation of the module.

[0019] Furthermore, multiple top holes are respectively arranged at the upper and lower ends of the module body; multiple light holes are arranged on the module body; and multiple puncture needles are arranged on the module body.

[0020] Beneficial effects: Multiple top holes are set at the upper and lower ends of the module body, which can ensure that when the module is disassembled, screws are screwed in from the top holes at both ends to push the module out, avoiding the situation where the module is stuck in the installation slot and cannot be disassembled. Multiple light holes are set, and multiple screws can be screwed in, which is convenient for fixing the module. Multiple puncture needles are set, which can help to pierce multiple leakage holes.

[0021] Furthermore, the puncture needle is a three-section frustum as a whole, which includes an upper part, a middle part and a root part. The middle frustum is convex outward, so that the inclination angle of the middle frustum is greater than the inclination angle of the root frustum, and the inclination angle of the root frustum is greater than or equal to the inclination angle of the upper frustum.

[0022] Furthermore, the inclination angle θ1 of the upper part of the three-stage truncated cone is 30°, the inclination angle θ2 of the middle part of the three-stage truncated cone is 60°, and the inclination angle θ3 of the root part of the three-stage truncated cone is 30°.

[0023] Beneficial effect: The puncture needle is set as a three-section frustum, and the inclination angles θ1, θ2, and θ3 of the upper part, middle part, and root part are respectively 30°, 60°, and 30°, which can ensure the puncture effect of the upper part while ensuring the overall structural strength of the puncture needle. Because the inclination angle of the root part is smaller than that of the middle part, the size of the root part can be effectively reduced, so that the layout of the puncture needle on the module can be more reasonable, saving space on the module and improving space utilization.

[0024] Furthermore, the overall height of the puncture needle is greater than or equal to 4 mm.

[0025] Beneficial effect: The overall height of the puncture needle is greater than or equal to 4 mm, which can ensure that the puncture needle has sufficient length to pierce the leakage hole and prevent the processing material from directly contacting the roller sleeve surface and adhering to the roller sleeve surface to interfere with the processing.

[0026] Furthermore, it also includes a roller shaft, a smooth roller and a frame, the roller sleeve is arranged on the roller shaft, the roller shaft and the smooth roller are both arranged on the frame, and protective rings are also arranged at both ends of the smooth roller, and the protective rings of the roller sleeve and the smooth roller are fitted together.

[0027] Beneficial effect: The roller sleeve is fixed to the frame through the roller shaft, which makes it easy to replace the roller sleeve after the printing protrusion is worn. The roller sleeve on the frame fits with the protective ring of the smooth roller, so that the middle part of the smooth roller can cooperate with the printing protrusion and puncture needle on the roller sleeve to puncture and print the processed material.

[0028] Furthermore, an internal thread is arranged in the top hole.

[0029] Beneficial effect: The screw can be screwed into the top hole to push the puncture module out of the installation slot, thereby improving the disassembly efficiency.

[0030] Furthermore, a plurality of threaded holes are provided at the bottom of the mounting groove, and the threaded holes correspond to the light holes one by one.

[0031] Beneficial effect: It can ensure that the puncture module is effectively fixed in the installation slot

[0032] Furthermore, the top of the puncture needle is higher than the top of the protection ring, and the range of the higher portion is 20 μm-25 μm.

[0033] Beneficial effect: It can ensure that the puncture needle pierces the processed material to form a leakage hole, and prevent the puncture needle from being broken due to hard contact with the smooth roller due to its excessive length. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the roller sleeve and smooth roller installed on the frame.

[0035] Figure 2 This is a schematic front view of a roller sleeve of a first embodiment of an embossing and puncturing integrated mold of the utility model installed on a roller shaft; (the printed protrusion structure is not specifically drawn in the figure, and the puncturing module structure is not shown)

[0036] Figure 3 for Figure 2 Left side view. (The puncture needle is not shown in the figure, and the printed protrusion is not shown)

[0037] Figure 4 for Figure 3 Top view of the middle roller sleeve after the outer circle is unfolded.

[0038] Figure 5 This is a cross-sectional view of a puncture module of a second embodiment of an embossing and puncturing integrated mold of the utility model.

[0039] Figure 6 for Figure 5 Schematic diagram of the right side view expansion.

[0040] Figure 7 for Figure 6 ZZ-direction cross-sectional view of the puncture needle.

[0041] Figure 8This is a schematic diagram of the printed protrusion structure of Example 3 of the utility model. DETAILED DESCRIPTION

[0042] The following is further described in detail through specific implementation methods:

[0043] The symbols in the drawings of the specification include:

[0044] Roller sleeve 1, printed protrusion 11, printed protrusion upper section 111, printed protrusion lower section 112, mounting groove 12, roller shaft 13, puncture module 2, module body 21, puncture needle 22, upper part 221, middle part 222, root part 223, top hole 23, light hole 24, protective ring 3, light roller 4, annular boss 41, frame 5.

[0045] Embodiment 1

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an embossing and puncturing integrated mold includes a roller sleeve 1, a roller shaft 13, a smooth roller 4 and a frame 5. The roller shafts 13 are respectively provided at both ends of the roller sleeve 1 and the smooth roller 4, and the roller shafts 13 are rotatably connected to the frame 5.

[0047] The roller sleeve 1 is provided with a plurality of printing areas in the middle circumferential direction, and a plurality of printing protrusions 11 are welded in each printing area, and the plurality of printing protrusions 11 are surrounded to form a pattern, and specifically, the printing protrusion is truncated. A mounting groove 12 is provided in the middle of the pattern of the printing area, and a plurality of threaded holes are provided at the bottom of the mounting groove 12 as required, and the puncture module 2 is detachably mounted in the mounting groove 12 by screws.

[0048] The puncture module 2 includes a module body 21, which is a strip block, and one side surface of the strip block is set as an arc surface, which fits with the circumferential arc surface of the roller sleeve 1 after the puncture module 2 is installed in the installation groove 12, and the puncture module 2 is provided with a puncture needle 22, a top hole 23 and a light hole 24, and the positions of the threaded holes and the light holes 24 correspond one to one. Specifically, in this embodiment, three groups of light holes 24 are set in groups of two on the arc surface of the module body 21, and a top hole 23 is respectively set between the light holes 24 near the two ends, and the top hole 23 is provided with an internal thread. In addition, the overall height of the puncture needle 22 is greater than or equal to 4 mm. In this embodiment, the height of the puncture needle 22 is set to a minimum of 4 mm as an example, which can ensure that the puncture needle 22 has a good puncture effect, and because the height of 4 mm is greater than the thickness of the processing material, the processing material will not contact the surface of the roller sleeve 1 and will not stick to the surface of the roller sleeve 1 to affect the processing; when the puncture needle 22 is less than 4 mm, the puncture effect is reduced, and because the height of the puncture needle 22 is less than the thickness of the processing material, the processing material is easy to stick to the surface of the roller sleeve 1.

[0049] Protection rings 3 are provided at both ends of the roller sleeve 1. Specifically, they can be steel rings integrally formed with the roller sleeve 1 or steel rings installed subsequently. In this embodiment, the steel rings are integrally formed with the roller sleeve 1, and the outer diameter of the steel rings is greater than the outer diameter of the shaft sleeve.

[0050] like Figure 2 As shown, after the puncture module 2 is installed on the roller sleeve 1, the top of the printed protrusion 11 is at the same height as the top of the protective ring 3, and the top of the puncture needle 22 is higher than the top of the protective ring 3. Specifically, the range of the raised portion is 20μm-25μm, and in this embodiment, the raised portion is selected to be 20μm. This setting can ensure that the puncture needle 22 penetrates the part of the processed material that needs to be pierced to form a leakage hole.

[0051] like Figure 1 As shown, protective rings 3 are also provided at both ends of the smooth roller 4. After the roller sleeve 1 and the smooth roller 4 are installed on the frame 5, the protective rings 3 at both ends of the roller sleeve 1 and the smooth roller 4 are fitted together, and an annular boss 41 is provided in the middle of the smooth roller 4. The annular boss 41 is at the same height as the protective rings 3 at both ends of the smooth roller 4, and is used to cooperate with the puncture needle 22 on the roller sleeve 1 and the printing protrusion 11 to pierce and print the processing material.

[0052] Here’s how to use it:

[0053] like Figure 1 As shown, the processed material passes between the roller sleeve 1 and the smooth roller 4, the roller sleeve 1 starts to rotate, and the protective rings 3 at both ends of the roller sleeve 1 drive the smooth roller 4 to rotate at the same time. Since the top of the puncture needle 22 is higher than the top of the protective ring 3, the puncture needle 22 will come into hard contact with the annular boss 41 in the middle of the smooth roller 4, thereby piercing the middle of the processed material to form a leakage hole.

[0054] At the same time, the printing protrusion 11 is at the same height as the protective ring 3, so as the roller sleeve 1 and the smooth roller 4 rotate, the processed material will be squeezed on the printing protrusion 11 by the annular boss 41 in the middle of the smooth roller 4 in the circumferential direction, thereby being processed into a print.

[0055] Embodiment 2

[0056] like Figure 5 , Figure 6 , Figure 7 As shown, the difference between this embodiment and the first embodiment is that 1) the top hole 23 and the light hole 24 of the puncture module 2 are arranged differently: Figure 5 As shown, a top hole 23 is provided at each end of the puncture module 2, four light holes 24 are evenly provided in the middle of the puncture module 2, and two light holes 24 are provided at one end of the puncture module 2. This arrangement is convenient for installation and removal of the puncture module 2. 2) The structure of the puncture needle 22 is different: Figure 7As shown, the puncture needle 22 is a three-section frustum as a whole, and the three-section frustum includes an upper portion 221, a middle portion 222 and a root portion 223: the inclination angle θ1 of the upper portion 221 of the three-section frustum is 30°, the inclination angle θ2 of the middle portion 222 of the three-section frustum is 60°, and the inclination angle θ3 of the root portion 223 of the three-section frustum is 30°.

[0057] The top hole 23 and the light hole 24 are centrally arranged, and the puncture needle 22 is arranged as a three-section frustum, which can effectively improve the space utilization and the efficiency of disassembly and installation of the puncture module 2. When the surface area of ​​the puncture module 2 remains unchanged, more puncture needles 22 can be arranged as needed, and it is ensured that the puncture needle 22 has good structural strength and puncture effect.

[0058] Embodiment 3

[0059] like Figure 8 As shown, the difference between this embodiment and the first embodiment is that: 1) the structure of the printed protrusion 11 is different: the printed protrusion is a two-section truncated cone, which is divided into a printed protrusion upper section 111 and a printed protrusion lower section 112, and the inclination angle γ1 of the printed protrusion upper section 111 can be set to 30°-40° as needed to meet different puncture requirements, and the inclination angle γ2 of the printed protrusion lower section 112 is 60°. Specifically, for example, when facing a processing material with uneven thickness, the inclination angle γ1 of the printed protrusion upper section 111 of the printed protrusion in the thicker area can be set to 30° in advance, and the inclination angle γ1 of the printed protrusion upper section 111 of the printed protrusion in other areas where the processing material is thinner can be set to 40°, so as to ensure the puncture effect and ensure that the printed protrusion has a longer service life.

[0060] This design can improve the puncture effect of the print by changing the inclination angle of the upper section, thereby obtaining a more three-dimensional pattern.

[0061] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An embossing and puncturing integrated mold, characterized in that: It includes a roller sleeve, a plurality of printing areas are circumferentially arranged in the middle of the roller sleeve, a plurality of printing protrusions are arranged in each printing area, a mounting groove is opened in the middle of the printing area, and a puncture module is arranged in the mounting groove; the puncture module includes a module body, and the module body is provided with a puncture needle, a top hole and a light hole, and protective rings are arranged at both ends of the roller sleeve, the top of the printing protrusion is at the same height as the top of the protective ring, and the top of the puncture needle is higher than the top of the protective ring.

2. The embossing and puncturing integrated mold according to claim 1, characterized in that: The module body is a strip block with one side bent and convex outwards, and a puncture needle, a top hole and a light hole are arranged on the convex side surface of the strip block.

3. The embossing and puncturing integrated mold according to claim 2, characterized in that: The top holes are arranged in plurality at the upper and lower ends of the module body; the light holes are arranged in plurality on the module body; and the puncture needles are arranged in plurality on the module body.

4. The embossing and puncturing integrated mold according to claim 3, characterized in that: The puncture needle is a three-section frustum as a whole, and the three-section frustum includes an upper frustum, a middle frustum and a root frustum. The middle frustum is convex outward, so that the inclination angle of the middle frustum is greater than the inclination angle of the root frustum, and the inclination angle of the root frustum is greater than or equal to the inclination angle of the upper frustum.

5. The embossing and puncturing integrated mold according to claim 4, characterized in that: The inclination angle θ1 of the upper part of the three-stage truncated cone is 30°, the inclination angle θ2 of the middle part of the three-stage truncated cone is 60°, and the inclination angle θ3 of the root part of the three-stage truncated cone is 30°.

6. The embossing and puncturing integrated mold according to claim 5, characterized in that: The overall height of the puncture needle is greater than or equal to 4 mm.

7. The embossing and puncturing integrated mold according to claim 1, characterized in that: It also includes a roller shaft, a smooth roller and a frame, the roller sleeve is arranged on the roller shaft, the roller shaft and the smooth roller are both arranged on the frame, and protective rings are also arranged at both ends of the smooth roller, and the protective rings of the roller sleeve and the smooth roller are fitted together.

8. The embossing and puncturing integrated mold according to claim 2, characterized in that: An internal thread is arranged in the top hole.

9. The embossing and puncturing integrated mold according to claim 1, characterized in that: A plurality of threaded holes are arranged at the bottom of the installation groove, and the threaded holes correspond to the light holes one by one.

10. The embossing and puncturing integrated mold according to claim 1, characterized in that: The range where the top of the puncture needle is higher than the top of the protection ring is 20 μm-25 μm.

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