Device for aligning seamless molding press

Abstract

The utility model relates to the technical field of laser holographic mould pressing, in particular to an alignment device of a seamless mould pressing machine. The molding press comprises a molding press body, a printing roller and a shaft sleeve, supporting pieces are symmetrically arranged on the two sides of the molding press body. Shaft sleeves are fixedly connected to two ends of the roller; a containing cavity is formed in the middle of each shaft sleeve and divides the shaft sleeve into an inner side sleeve body close to the printing roller and an outer side sleeve body away from the printing roller. The supporting pieces are embedded in the corresponding containing cavities. The inner side sleeve body and the outer side sleeve body are each provided with a plurality of through holes which are annularly distributed in the circumferential direction, and the through holes penetrate through the shaft sleeve wall body to reach the containing cavity; displacement pieces are arranged in the through holes, and the inner ends of the displacement pieces extend to the containing cavities and abut against the surfaces of the supporting pieces; a locking piece is arranged on the displacement piece and used for fixing the relative position of the displacement piece and the supporting piece; the distance between the inner side faces of the outer sleeve bodies of the two shaft sleeves is larger than that between the outer side faces of the two supporting pieces. The radial depth of the containing cavity is larger than that of the supporting piece. The mechanical alignment device provided by the utility model is simple in structure and low in cost, and solves the problem of alignment.

Description

Technical Field

[0001] This utility model relates to the field of laser holographic molding technology, specifically to a device for aligning a seamless molding machine. Background Technology

[0002] In the field of laser holographic anti-counterfeiting packaging, seamless molding technology is the core process for achieving high-precision laser patterns (such as vertical light pillars and microtext). Such products require strict alignment between the first version of the basic grating and the second version of the enhanced pattern (misalignment tolerance ≤ 0.1mm), otherwise defects such as broken light pillars and blurred text may occur.

[0003] Traditional molding machines rely on manual experience for alignment, which has the following problems:

[0004] 1. The adjustment mechanism is primitive: repeated trial and error are required when applying the plate. Workers adjust the position of the plate by visual inspection. On average, it takes 3-5 plate applications to meet the production requirements. Each trial and error consumes plate materials, resulting in waste.

[0005] 2. Conflict between precision and efficiency: The limit of manual alignment is only ±1mm, while high-end anti-counterfeiting products (such as currency security threads) require ±0.1mm. To improve precision, workers need to stop the machine and manually tap the bushing to slightly move the printing roller, which can easily damage the equipment and is time-consuming to adjust.

[0006] This utility model addresses the shortcomings of existing technologies by disclosing a device for aligning seamless molding machines, thereby solving the aforementioned problems. Utility Model Content

[0007] This utility model addresses the technical problems existing in the prior art by providing a seamless molding machine alignment device. This mechanical alignment device is simple in structure, low in cost, and reliable in precision, solving the alignment problem, reducing the number of trial and error attempts, and improving production efficiency.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a device for aligning a seamless molding machine, comprising: a molding machine body, a printing roller and a bushing;

[0009] The molding machine body is symmetrically provided with support components on both sides;

[0010] The printing roller is fixedly connected to the bushings at both ends;

[0011] Each bushing has a receiving cavity in the middle, which divides the bushing into an inner sleeve body closer to the printing roller and an outer sleeve body farther away from the printing roller;

[0012] The support member is embedded in the receiving cavity at the corresponding end;

[0013] Both the inner sleeve and the outer sleeve are provided with multiple circumferentially arranged through holes, and all through holes penetrate the sleeve wall to the receiving cavity;

[0014] The through hole contains a displacement element, the inner end of which extends into the receiving cavity and abuts against the surface of the support element;

[0015] The displacement member is provided with a locking member, which is used to fix the relative position between the displacement member and the support member after the displacement member abuts against the support member;

[0016] The distance between the inner surfaces of the outer sleeves of the two bushings is greater than the distance between the outer surfaces of the two supports; the radial depth of the receiving cavity is greater than the radial thickness of the support.

[0017] Based on the above technical solution, the present invention can be further improved as follows.

[0018] Furthermore, the distance between the inner surfaces of the outer sleeves of the two bushings is greater than the distance between the outer surfaces of the two supports by a first difference, and the radial depth of the receiving cavity is greater than the radial thickness of the support by a second difference, wherein the first difference and the second difference are equal.

[0019] Furthermore, the radial depth of the receiving cavity is 15-20 mm greater than the radial thickness of the support member.

[0020] Furthermore, the displacement component is a threaded adjusting screw, and the through hole is a matching threaded hole; the adjusting screw is installed in the threaded hole through threaded engagement.

[0021] Furthermore, the locking element is a double-nut structure, and the adjusting screw is locked through the double-nut structure.

[0022] Furthermore, a scale is fixedly installed on the portion of the support extending out of the receiving cavity.

[0023] Furthermore, the scale indicates the correspondence between the number of rotations of the adjusting screw and the axial displacement.

[0024] The beneficial effects of this utility model are:

[0025] 1. In this embodiment, the roller is divided into inner and outer sleeves with a reserved receiving cavity. After the support is embedded, a radial adjustment space is formed. The circumferentially distributed displacement components allow for multi-point fine adjustment of the plate roller position, solving the problem of inaccurate positioning in traditional plate-mounting methods. The radial depth of the receiving cavity is 15-20mm greater than the radial thickness of the support. This ensures that the plate roller has sufficient axial adjustment margin, significantly improving the alignment tolerance.

[0026] 2. In this embodiment, by forcibly limiting the first difference (the distance between the inner sides of the outer sleeves of the two bushings minus the distance between the outer sides of the two support members) to be equal to the second difference (the radial depth of the receiving cavity minus the radial thickness of the support member), the two support members are simultaneously centered in the receiving cavity when embedded in the receiving cavity, thereby ensuring that when the displacement member pushes the plate roller, the adjustment strokes on the left and right sides are completely equal (first difference / 2), thus guaranteeing the adjustment range on the left and right sides. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the device for aligning a seamless molding press according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the bushing threaded hole according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the adjusting screw described in an embodiment of the present invention.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Printing roller, 2. Bushing, 3. Support component, 4. Adjusting screw, 5. Double nut structure, 6. Scale, 7. Inner sleeve, 8. Outer sleeve, 9. Receiving cavity, 10. Threaded hole. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0035] Example

[0036] A device for aligning a seamless molding machine, such as Figure 1-3 As shown, it includes: the molding machine body, the printing roller 1, and the bushing 2;

[0037] The molding machine body is symmetrically provided with support members 3 on both sides;

[0038] The printing roller 1 is fixedly connected to the bushing 2 at both ends;

[0039] Each bushing 2 has a receiving cavity 9 in the middle, which divides the bushing 2 into an inner sleeve 7 that is close to the printing roller 1 and an outer sleeve 8 that is far away from the printing roller 1.

[0040] The support member 3 is embedded in the receiving cavity 9 at the corresponding end;

[0041] Both the inner sleeve 7 and the outer sleeve 8 are provided with multiple through holes arranged in a circumferential direction, and all through holes penetrate the wall of the bushing 2 to the receiving cavity 9;

[0042] The through hole has a built-in displacement member, the inner end of which extends into the receiving cavity 9 and abuts against the surface of the support member 3;

[0043] The displacement member is provided with a locking member, which is used to fix the relative position between the displacement member and the support member 3 after the displacement member abuts against the support member 3.

[0044] The distance between the inner sides of the outer sleeves 8 of the two bushings 2 is greater than the distance between the outer sides of the two support members 3; the radial depth of the receiving cavity 9 is greater than the radial thickness of the support member 3.

[0045] The distance between the inner sides of the outer sleeves 8 of the two bushings 2 is greater than the distance between the outer sides of the two support members 3 by a first difference value, and the radial depth of the receiving cavity 9 is greater than the radial thickness of the support member 3 by a second difference value. The first difference value and the second difference value are equal.

[0046] It should be noted that in this embodiment, by forcibly limiting the first difference (the distance between the inner sides of the outer sleeves 8 of the two bushings 2 minus the distance between the outer sides of the two support members 3) to be equal to the second difference (the radial depth of the receiving cavity 9 minus the radial thickness of the support member 3), the two support members 3 are simultaneously centered in the receiving cavity 9 when embedded in it, thereby ensuring that when the displacement member pushes the plate roller 1, the adjustment strokes on the left and right sides are completely equal (first difference / 2), thus guaranteeing the adjustment range on the left and right sides.

[0047] The radial depth of the receiving cavity 9 is 15-20 mm greater than the radial thickness of the support member 3.

[0048] It should be noted that limiting the first spacing to be 15-20mm larger than the second spacing is to balance the adjustment range and equipment stability: less than 15mm means insufficient adjustment space, while more than 20mm can easily lead to a decrease in the rigidity of the molding machine body support.

[0049] In this embodiment, the bushing 2 divides the roller into an inner sleeve 7 and an outer sleeve 8, with a reserved receiving cavity 9. After the support member 3 is embedded, a radial adjustment space is formed. The circumferentially distributed displacement members can finely adjust the position of the printing roller 1 at multiple points, solving the problem of inaccurate positioning in traditional plate-mounting methods. The design that the distance between the inner surfaces of the outer sleeves 8 of the two bushings 2 is greater than the distance between the outer surfaces of the two support members 3 (leaving a gap of 15-20mm) ensures that the printing roller 1 has sufficient axial adjustment margin, significantly improving the alignment error tolerance.

[0050] In this embodiment, the first difference is 20mm; the second difference is 20mm, ensuring that there is an effective travel of 10mm on each of the left and right sides.

[0051] In a preferred embodiment, the displacement element is a threaded adjusting screw 4, and the through hole is a matching threaded hole 10; the adjusting screw 4 is installed in the threaded hole 10 through threaded engagement.

[0052] In this embodiment, as Figure 1-2 As shown, the inner sleeve 7 and the outer sleeve 8 each have four threaded holes 10 drilled, evenly distributed circumferentially. Each threaded hole 10 is fitted with an adjusting screw 4. A nut is added to the end of the screw to prevent loosening after tightening. The displacement component uses a threaded adjusting screw 4, with a through hole matching the threaded hole 10. The threaded drive achieves high-precision displacement control (the displacement per revolution can be quantified), is easy to operate, and is low in cost.

[0053] In a preferred embodiment, such as Figure 1 and Figure 3 As shown, the locking component is a double-nut structure 5, and the adjusting screw 4 is locked through the double-nut structure 5. It should be noted that, due to viewing angle issues, Figure 1In the middle, the double nuts of the outer sleeve 8 of the left bushing 2 and the inner sleeve 7 of the right bushing 2 are obscured and not shown.

[0054] In this embodiment, to avoid the risk of screw retraction caused by vibration of the molding machine body, two nuts are added to the tail of the screw. The double nut structure 5 has a better anti-loosening effect than the single nut and can avoid misalignment during production.

[0055] In a preferred embodiment, such as Figure 1 As shown, a scale 6 is fixedly installed on the portion of the support member 3 that extends out of the receiving cavity 9.

[0056] Specifically, the scale 6 indicates the correspondence between the number of rotations of the adjusting screw 4 and the axial displacement.

[0057] In this embodiment, a stainless steel scale 6 is welded to the protruding end of the support member 3. Adjustment is performed by directly reading the scale, eliminating the need for measuring tools. The scale 6 directly indicates the correspondence between the number of rotations and axial displacement (e.g., 1 rotation = 1 mm), allowing workers to quickly adjust without calculation. This transforms traditional experience-based operations into a standardized process, improving alignment accuracy.

[0058] The working process of this embodiment is as follows: The first plate roller 1 of the assembly bushing 2 is installed onto the body of the molding machine, so that the support members 3 on both sides of the molding machine body are embedded into the receiving cavity 9 of the bushing 2. At this time, the distance between the inner sides of the outer sleeves 8 of the two bushings 2 is greater than the first difference formed by the distance between the outer sides of the two support members 3, leaving axial adjustment space; the displacement member (adjusting screw 4) is pre-placed in the through hole of the inner and outer sleeves 8, so that its inner end abuts against the surface of the support member 3 and is fixed by the locking structure; the first plate and the second plate are initially attached, and the misalignment is allowed to be ≤ the first difference / 2; after molding, the actual misalignment is measured, and the screw-in depth of the displacement member of the bushings 2 on both sides is adjusted synchronously according to the number of rotations and displacement relationship marked on the scale 6, so as to push the plate roller 1 to move axially to compensate for the misalignment, and finally achieve precise alignment.

[0059] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the methods, systems, and devices described above are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A device for aligning a seamless molding machine, characterized in that, include: The molding machine body, printing rollers, and bushings; The molding machine body is symmetrically provided with support components on both sides; The printing roller is fixedly connected to the bushings at both ends; Each bushing has a receiving cavity in the middle, which divides the bushing into an inner sleeve body closer to the printing roller and an outer sleeve body farther away from the printing roller; The support member is embedded in the receiving cavity at the corresponding end; Both the inner sleeve and the outer sleeve are provided with multiple circumferentially arranged through holes, and all through holes penetrate the sleeve wall to the receiving cavity; The through hole contains a displacement element, the inner end of which extends into the receiving cavity and abuts against the surface of the support element; The displacement member is provided with a locking member, which is used to fix the relative position between the displacement member and the support member after the displacement member abuts against the support member; The distance between the inner surfaces of the outer sleeves of the two bushings is greater than the distance between the outer surfaces of the two supports; the radial depth of the receiving cavity is greater than the radial thickness of the support.

2. The device for aligning a seamless molding machine according to claim 1, characterized in that: The distance between the inner surfaces of the outer sleeves of the two bushings is greater than the distance between the outer surfaces of the two supports by a first difference value, and the radial depth of the receiving cavity is greater than the radial thickness of the support by a second difference value, wherein the first difference value and the second difference value are equal.

3. The device for aligning a seamless molding machine according to claim 2, characterized in that: The radial depth of the receiving cavity is 15-20 mm greater than the radial thickness of the support member.

4. The device for aligning a seamless molding machine according to claim 1, characterized in that: The displacement component is a threaded adjusting screw, and the through hole is a matching threaded hole; the adjusting screw is installed in the threaded hole through threaded engagement.

5. The device for aligning a seamless molding machine according to claim 4, characterized in that: The locking component has a double nut structure, and the adjusting screw is locked in place by the double nut structure.

6. The device for aligning a seamless molding machine according to claim 1, characterized in that: A scale is fixedly installed on the portion of the support extending out of the receiving cavity.

7. The device for aligning a seamless molding machine according to claim 6, characterized in that: The scale indicates the correspondence between the number of rotations of the adjusting screw and the axial displacement.

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