A kind of unwinding component of hot melt adhesive coating machine

Abstract

The utility model discloses an unwinding assembly of a hot melt adhesive coating machine, including a bracket and an unwinding roller. The unwinding assembly of the hot melt adhesive coating machine also includes a rotating support structure and a limiting mechanism. The rotating support structures are respectively arranged at both ends of the unwinding roller, and the limiting mechanisms are respectively arranged on both sides of the bracket. The assembly cooperates with the rotating support wheel through the stepped groove on the bearing to ensure stable conveying of the coiled material, while avoiding the cumbersome operation of the traditional complex adjustment mechanism. The setting of the guide rail not only provides the operator with a buffer area when replacing the coiled material, but also plays a role in guiding and centering, making the installation process of the new roller simpler and more accurate. The structural design of the stepped groove clamping connection between the bearing and the rotating support wheel not only ensures the stability of the axial limit, but also facilitates rapid replacement after wear, effectively extending the service life of the unwinding assembly and maintaining the accuracy of the coil feeding.

Description

Technical Field

[0001] The utility model relates to the technical field of design and improvement of an unwinding component in a coating machine, in particular to an unwinding component of a hot melt adhesive coating machine. Background Art

[0002] The unwinding assembly of the hot melt adhesive coating machine is an important component of the coating equipment, which is mainly responsible for supporting and conveying the coil to be coated.

[0003] In the specific coating process, the coiled material (such as cloth, paper or plastic film, etc.) is fixed on the reel of the unwinding assembly and gradually unrolled as the reel rotates so as to be evenly coated by the hot melt adhesive coating device. As the coiled material is consumed, it needs to be frequently replaced with new coils to ensure continuous production.

[0004] The unwinding assembly of a traditional hot melt adhesive coating machine usually consists of an unwinding roller and support frames at both ends. When the coil runs out and needs to be replaced, the operator needs to perform a series of steps, including unfastening the old coil, removing it from the unwinding roller, and then installing and fixing the new coil. This process involves multiple steps of operation, which not only increases the workload of the operator, but may also introduce errors during the replacement process, affecting the subsequent coating quality.

[0005] Especially in terms of axial positioning, in order to ensure the stable conveying of the coil during the coating process and prevent deviation or wrinkles, the existing unwinding components usually need to be equipped with complex positioning devices and adjustment mechanisms. For example, some unwinding components use precise spiral adjustment devices or slider mechanisms to achieve axial fine-tuning of the coil. Although these mechanisms improve the positioning accuracy to a certain extent, they also bring operational complexity and time cost. Operators may need special training to use these mechanisms accurately, and in a production environment where the coils are frequently changed, this complexity will significantly affect production efficiency and ease of operation.

[0006] Therefore, how to simplify the coil replacement process and provide a fast and accurate axial positioning function has become a technical problem to be solved by the present utility model. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a reeling assembly for a hot melt adhesive coating machine in view of the defects existing in the above-mentioned prior art, so as to solve the problems of complex operation, low efficiency of coil replacement and inconvenient axial positioning adjustment proposed in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0009] A reel assembly of a hot melt adhesive coating machine comprises a bracket and a reel assembly, the reel assembly of the hot melt adhesive coating machine further comprises a rotation support structure and a limit mechanism, the rotation support structures are respectively arranged at both ends of the reel assembly, and the limit mechanisms are respectively arranged at both sides of the bracket;

[0010] The rotary support structure comprises a bearing, a first stepped groove, a rotary support wheel, a second stepped groove and a limiting ring;

[0011] The bearing sleeve is arranged on the side of the unwinding roller and close to the end thereof, and the inner side surface of the bearing is fixedly connected to the unwinding roller; the outer side surface of the bearing is provided with a first stepped groove;

[0012] The rotating support wheel is sleeved on the outer side of the bearing, and the inner side of the rotating support wheel is provided with a second step groove matching the first step groove; one end and the other end of the rotating support wheel are respectively fixed with a limit ring;

[0013] The limiting mechanism comprises a limiting plate and a limiting slot. The limiting plate is fixedly connected to the bracket, and the bracket is provided with a limiting slot matched with the rotating support wheel.

[0014] As a further solution of the utility model, the bearing sleeve comprises an inner end and an outer end when arranged on the unwinding roller, and the stepped groove makes the diameter of the part near the inner end on the outer surface of the bearing larger than the diameter of the part near the outer end.

[0015] As a further solution of the utility model, the limiting plate and the bracket are an integrated structure.

[0016] As a further solution of the utility model, the unwinding assembly of the hot melt adhesive coating machine also includes a limiting protrusion, and the limiting protrusion is provided on the inner side wall of the limiting slot.

[0017] As a further solution of the utility model, each corner of the rotating support wheel is respectively provided with an arc transition.

[0018] As a further solution of the utility model, a combination of limiting rings fixedly arranged on the outer side surface of the rotating support wheel and one end and the other end of the rotating support wheel respectively forms a limiting guide slot.

[0019] As a further solution of the utility model, one side of the limiting slot forms a guide track that matches the limiting guide slot.

[0020] Compared with the prior art, the beneficial effects of the utility model are: it realizes the rapid replacement and precise axial positioning of the coil, significantly improving the production efficiency and operational convenience of the coating process; the setting of the guide rail not only provides the operator with a buffer area when replacing the coil, but also plays a guiding and centering role, making the installation process of the new roller simpler and more accurate; the structural design of the stepped groove card connection between the bearing and the rotating support wheel not only ensures the stability of the axial limit, but also facilitates rapid replacement after wear, effectively extending the service life of the unwinding component and maintaining the accuracy of the roll feeding.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the end structure.

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of part A.

[0026] Figure 4 It is a schematic diagram of the structure when the bearing cooperates with the rotating support wheel.

[0027] The reference numerals and names in the figures are as follows:

[0028] Bracket 1, unwinding roller 2, rotating support structure 3, limiting mechanism 4, bearing 5, first step groove 6, rotating support wheel 7, second step groove 8, limiting ring 9, limiting plate 10, limiting slot 11, inner end 12, outer end 13, limiting protrusion 14, limiting guide slot 15 and guide rail 16. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 —4. In an embodiment of the utility model, a reeling assembly of a hot melt adhesive coating machine includes a bracket 1 and a reeling roller 2. The reeling assembly of the hot melt adhesive coating machine also includes a rotating support structure 3 and a limiting mechanism 4. The rotating support structures 3 are respectively arranged at both ends of the reeling roller 2, and the limiting mechanisms 4 are respectively arranged on both sides of the bracket 1;

[0031] The rotating support structure 3 includes a bearing 5, a first stepped groove 6, a rotating support wheel 7, a second stepped groove 8 and a limiting ring 9;

[0032] The bearing 5 is sleeved on the side of the unwinding roller 2 and close to the end thereof, and the inner side of the bearing 5 is fixedly connected to the unwinding roller 2; the outer side of the bearing 5 is provided with a first stepped groove 6;

[0033] The rotating support wheel 7 is sleeved on the outer side of the bearing 5, and the inner side of the rotating support wheel 7 is provided with a second step groove 8 matched with the first step groove 6; one end and the other end of the rotating support wheel 7 are respectively fixedly provided with a limit ring 9;

[0034] The limiting mechanism 4 includes a limiting plate 10 and a limiting slot 11 . The limiting plate 10 is fixedly connected to the bracket 1 . The bracket 1 is provided with a limiting slot 11 that matches the rotating support wheel 7 .

[0035] When the bearing 5 is sleeved on the unwinding roller 2 , it comprises an inner end 12 and an outer end 13 . The stepped groove makes the diameter of the portion near the inner end 12 on the outer surface of the bearing 5 larger than the diameter of the portion near the outer end 13 .

[0036] The limiting plate 10 and the bracket 1 are an integrated structure.

[0037] The unwinding assembly of the hot melt adhesive coating machine further comprises a limiting protrusion 14 , and the limiting protrusion 14 is arranged on the inner side wall of the limiting slot 11 .

[0038] Each corner of the rotating support wheel 7 is provided with an arc transition.

[0039] The outer side surface of the rotating support wheel 7 and one end and the other end of the rotating support wheel 7 are respectively fixedly provided with a limiting ring 9 to form a limiting guide slot 15.

[0040] A guide track 16 that matches with the limiting guide slot 15 is formed on one side of the limiting slot 11 .

[0041] During operation, when the operator needs to replace the coil, he can hold the used unwinding roller by hand. Due to the clamping connection design between the rotating support wheel and the limit slot, the operator only needs to use a slight force to make the two ends of the unwinding roller disengage from the limit slot. At this time, the existence of the guide rail allows the unwinding roller to have a smooth transition area after the clamping is cancelled, thereby avoiding the unwinding roller suddenly bearing the full weight without buffering, which is conducive to improving the comfort and convenience of operation.

[0042] After removing the old unwinding roller, the operator can easily pick up a new unwinding roller that has been loaded with coils, align the rotating support wheel of the new roller with the guide rail, and then gently push it to make the rotating support wheel slide along the guide rail to the predetermined position. In this process, the guide rail not only provides stable support, but also plays a role in guiding and centering, ensuring that the new roller can be installed in place accurately.

[0043] When the rotating support wheel of the new roller is aligned with the limit slot, the operator only needs to press lightly to make the rotating support wheel snap into the limit slot to complete the installation of the new roller. At this time, the first step groove of the bearing and the second step groove of the rotating support wheel are closely matched to form a stable axial limit structure. This design not only ensures the stable conveying of the coil during the coating process, but also effectively prevents the deviation or wrinkling of the coil. At the same time, the structure of the stepped groove card connection also facilitates the rapid replacement of the rotating support wheel after wear, thereby avoiding the problem of reduced roll feeding accuracy due to wear.

[0044] The utility model realizes the rapid replacement and precise axial positioning of the coiled material, significantly improving the production efficiency and operational convenience of the coating process; the setting of the guide rail not only provides the operator with a buffer area when replacing the coiled material, but also plays a role in guiding and centering, making the installation process of the new roller simpler and more accurate; the structural design of the stepped groove card connection between the bearing and the rotating support wheel not only ensures the stability of the axial limit, but also facilitates rapid replacement after wear, effectively extending the service life of the unwinding component and maintaining the accuracy of the roll feeding.

[0045] Embodiment 1:

[0046] This embodiment provides a reel unwinding assembly for a hot melt adhesive coating machine, which significantly simplifies the process of replacing the coil in practical applications and realizes a fast and accurate axial positioning function. This improvement is of great significance for improving production efficiency and operating convenience.

[0047] Specifically, the unwinding assembly includes a bracket 1, an unwinding roller 2, a rotating support structure 3 and a limiting mechanism 4. The rotating support structures 3 are respectively provided at both ends of the unwinding roller 2, and the limiting mechanisms 4 are respectively provided on both sides of the bracket 1. This structural layout not only ensures the stability of the coil during the conveying process, but also effectively simplifies the steps of replacing the coil.

[0048] The rotating support structure 3 is one of the core innovations of the utility model. It is mainly composed of a bearing 5, a first step groove 6, a rotating support wheel 7, a second step groove 8 and a limit ring 9. The bearing 5 is sleeved on the side of the unwinding roller 2 and close to the end, and its inner side is fixedly connected to the unwinding roller 2. In particular, a first step groove 6 is provided on the outer side of the bearing 5, which makes the bearing 5 have different sizes in the radial direction. The diameter of the part close to the inner end 12 is larger, while the diameter of the part close to the outer end 13 is smaller. This design helps to achieve precise positioning and stable support of the rotating support wheel 7 in the axial direction.

[0049] The rotating support wheel 7 is sleeved on the outer side of the bearing 5, and the inner side thereof is provided with a second stepped groove 8 that matches the first stepped groove 6. Through this matching relationship, the rotating support wheel 7 can be conveniently installed on the bearing 5 and accurately positioned in the axial direction. At the same time, one end and the other end of the rotating support wheel 7 are respectively fixedly provided with limit rings 9, which cooperate with the limit mechanism 4 on the bracket 1, further ensuring the stability and accuracy of the coil during the conveying process.

[0050] The limiting mechanism 4 includes a limiting plate 10 and a limiting slot 11. The limiting plate 10 is fixedly connected to the bracket 1, and the bracket 1 is provided with a limiting slot 11 that matches the rotating support wheel 7. When the rotating support wheel 7 is installed in place, the limiting ring 9 on the outer side thereof will be inserted into the limiting slot 11, thereby achieving accurate positioning of the coil in the axial direction. In addition, the inner side wall of the limiting slot 11 is also provided with limiting protrusions 14, which match the limiting ring 9 on the rotating support wheel 7, further enhancing the stability of the coil during transportation.

[0051] In actual application, when the coil needs to be replaced, the operator only needs to remove the old coil from the unwinding roller 2, and then put the new coil on the unwinding roller 2 and fix it. Due to the ingenious design of the rotating support structure 3 and the limiting mechanism 4, the new coil can be quickly positioned in the correct axial position without complicated adjustment operations. This not only greatly simplifies the replacement process, but also improves production efficiency and operational convenience.

[0052] In addition, the utility model further enhances the practicality and reliability of the unwinding assembly by providing arc transitions at the corners of the rotating support wheel 7 and providing a combination of limiting rings 9 on the outer side and both ends to form limiting guide slots 15. These designs help reduce the problems of deviation and wrinkles that may occur in the coil during transportation, thereby ensuring the stability and consistency of coating quality.

[0053] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A reel assembly for a hot melt adhesive coating machine, comprising a bracket and a reel roller, characterized in that: The unwinding assembly of the hot melt adhesive coating machine also includes a rotating support structure and a limiting mechanism. The rotating support structures are respectively arranged at both ends of the unwinding roller, and the limiting mechanisms are respectively arranged at both sides of the bracket. The rotary support structure comprises a bearing, a first stepped groove, a rotary support wheel, a second stepped groove and a limiting ring; The bearing sleeve is arranged on the side of the unwinding roller and close to the end thereof, and the inner side surface of the bearing is fixedly connected to the unwinding roller; the outer side surface of the bearing is provided with a first stepped groove; The rotating support wheel is sleeved on the outer side of the bearing, and the inner side of the rotating support wheel is provided with a second step groove matching the first step groove; one end and the other end of the rotating support wheel are respectively fixed with a limit ring; The limiting mechanism comprises a limiting plate and a limiting slot. The limiting plate is fixedly connected to the bracket, and the bracket is provided with a limiting slot matched with the rotating support wheel.

2. The unwinding assembly of a hot melt adhesive coating machine according to claim 1, characterized in that: When the bearing sleeve is arranged on the unwinding roller, it comprises an inner end and an outer end. The stepped groove makes the diameter of the part close to the inner end on the outer surface of the bearing larger than the diameter of the part close to the outer end.

3. The unwinding assembly of a hot melt adhesive coating machine according to claim 1, characterized in that: The limiting plate and the bracket are an integrated structure.

4. The unwinding assembly of a hot melt adhesive coating machine according to claim 1, characterized in that: The unwinding assembly of the hot melt adhesive coating machine also includes a limiting protrusion, and the limiting protrusion is arranged on the inner side wall of the limiting slot.

5. The unwinding assembly of a hot melt adhesive coating machine according to claim 1, characterized in that: Each corner of the rotating support wheel is provided with an arc transition.

6. The unwinding assembly of a hot melt adhesive coating machine according to claim 1, characterized in that: The outer side surface of the rotating support wheel and one end and the other end of the rotating support wheel are respectively fixedly provided with a combination of limiting rings to form a limiting guide sliding groove.

7. The unwinding assembly of a hot melt adhesive coating machine according to claim 6, characterized in that: One side of the limiting clamping groove forms a guide track matched with the limiting guide sliding groove.

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