Conveying winding and unwinding mechanism for plastic bag production

By designing a plastic bag production material transport and retracting mechanism including rotating shaft, fixed sleeve 1, inner bushing and fixed sleeve 2, the problems of inconvenient fixing and poor fastening effect in the prior art are solved, and stable fixing of the material tray and efficient and stable feeding are achieved.

CN222846227UActive Publication Date: 2025-05-09QINGDAO HONGYAN ACCESSORIES PRINTING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421624228.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-05-09
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

The existing plastic bag production material conveying and reeling mechanism has inconvenient fixation and poor tightening effect, which may cause shaking, sliding, offset, and skew to occur, affecting the material conveying effect.

Method used

A plastic bag production material retracting and unwinding mechanism including a rotating shaft, a fixed sleeve, an inner bushing and a fixed sleeve two is designed. The fixing stability of the inner bushing is increased through the combination of anti-slip threads and fastening bolts, and the inner bushing and plastic bag rolls of different lengths are adapted to the inner bushing and plastic bag rolls of different lengths through the adjustment sleeve.

Benefits of technology

It effectively improves the fixing convenience and stability of the material tray, avoids shaking, sliding, offset, skew, etc. in the inner liner and the outer rolled plastic bag roll, and improves the stability and convenience of the material conveying.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222846227U_ABST
    Figure CN222846227U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of plastic bag production, in particular to a plastic bag production conveying winding and unwinding mechanism which comprises a rotating shaft, a driving fluted disc is arranged on the outer side of one end of the rotating shaft, the driving fluted disc is in transmission connection with a driving device to drive the rotating shaft to rotate, a neck bush is sleeved on the outer side of the rotating shaft, and a plastic bag roll is wound on the outer side of the neck bush. The inner bushing has the advantages that the rotating shaft, the first fixing sleeve, the inner bushing and the second fixing sleeve which are matched with one another are arranged and can be matched with one another, the stability performance of the inner bushing after being fixed is improved, and the service life of the inner bushing is prolonged. The neck bush and a plastic bag roll wound outside the neck bush cannot shake, slide, deviate, incline and the like, the first fixing sleeve is fixed in advance, the neck bush can be adjusted and fastened through the adjusting sleeve on one side of the second fixing sleeve, operation is more convenient and faster, the fastening effect can be effectively improved through adjustment of the second fixing sleeve, stability is improved, and the using effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production, in particular to a material feeding, reeling and unreeling mechanism for plastic bag production. Background Art

[0002] Bag making machine is a machine that makes various plastic bags or other material packaging bags. Its processing range is various sizes, thicknesses and specifications of plastic or other material packaging bags. Generally speaking, plastic packaging bags are the main products. In the process of plastic bag production, the plastic of semi-finished plastic bags is generally transported by a reeling and unreeling mechanism.

[0003] The plastic bag feeding, unwinding and reeling mechanism in the prior art is inconvenient to operate for fixing the material tray, and the fastening effect is not good. The material tray may shake, slide, deviate, skew and other problems, affecting the feeding effect. Therefore, a structure is needed that can effectively improve the convenience of fixing the material tray and improve the stability of the material tray after it is fixed. To this end, the utility model proposes a plastic bag production feeding, unwinding and reeling mechanism for solving the above problems. Utility Model Content

[0004] The utility model aims to provide a feeding, reeling and unreeling mechanism for producing plastic bags, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a plastic bag production feeding and unwinding mechanism, comprising

[0006] A rotating shaft, a driving gear plate is arranged on the outer side of one end of the rotating shaft, the driving gear plate is connected to the driving device to drive the rotating shaft to rotate, an inner sleeve is sleeved on the outer side of the rotating shaft, a plastic bag roll is rolled on the outer side of the inner sleeve, and a fixing sleeve 1 and a fixing sleeve 2 are respectively sleeved and fastened on the outer side of the rotating shaft at both ends of the inner sleeve.

[0007] Preferably, anti-slip threads are provided on the outer sides of both ends of the rotating shaft, wherein a fixing sleeve 1 is sleeved and fastened to the outer side of the anti-slip threads on one side, and a fixing sleeve 2 is sleeved and fastened to the outer side of the anti-slip threads on the other side, and an inner sleeve is sleeved on the outer side of the rotating shaft between the fixing sleeves 2, and extrusion grooves are opened on the inner sides of both ends of the inner sleeve, and the extrusion grooves correspond to the ends of the fixing sleeve 1 and the fixing sleeve 2.

[0008] Preferably, the fixing sleeve includes a positioning sleeve, and an extrusion head is integrally formed at the front end of the positioning sleeve. The extrusion head is in the shape of a conical sleeve, and the extrusion head is provided with inward grooves evenly distributed in a circular array. A protrusion is protruding from the outer side of the positioning sleeve, and a screw hole is provided on the protrusion, and a fastening bolt is connected in the screw hole.

[0009] Preferably, the second fixing sleeve includes a fastening sleeve and an adjusting sleeve, the adjusting sleeve is threadedly connected to the front end of the fastening sleeve, the fastening sleeve includes a fastening ring, a threaded head is protruding from the front end of the fastening ring, a protruding block is protruding from the outer side of the fastening ring, a screw hole is opened on the protrusion, and a positioning bolt is connected in the screw hole.

[0010] Preferably, the adjusting sleeve comprises a threaded sleeve, an extrusion head is integrally formed at the front end of the threaded sleeve, a threaded groove is arranged inside the rear end of the adjusting sleeve, the adjusting sleeve is threadedly connected to the outside of the threaded head at the front end of the fastening sleeve through the threaded groove, screw slots are protruding on both sides of the adjusting sleeve, and a plug rod can be inserted into the screw slot to rotate the adjusting sleeve, a protrusion is also arranged on the outside of the adjusting sleeve, a screw hole is opened on the protrusion, a fastening bolt is connected in the screw hole, and the extrusion heads at the ends of the fixing sleeve one and the fixing sleeve two are inserted and fastened in the extrusion grooves at both ends of the inner sleeve.

[0011] Preferably, the fastening bolt includes a nut at the upper end, a hexagonal groove is provided in the middle of the upper end of the nut, a screw is integrally formed at the lower end of the nut, a positioning head is rotatably connected to the lower end of the screw, a limit strip is provided on the outer side of the positioning head to prevent the positioning head from rotating, a groove corresponding to the limit strip is provided in the screw hole, a positioning card is provided at the lower end of the positioning head, and the positioning card corresponds to the anti-slip thread on the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a matching rotating shaft, a fixing sleeve one, an inner liner sleeve and a fixing sleeve two, which can cooperate with each other to increase the stability of the inner liner sleeve after being fixed, and ensure that the inner liner sleeve and the plastic bag roll wound outside the inner liner sleeve will not have problems such as shaking, sliding, offsetting, skewing, etc., and the fixing sleeve one is pre-fixed, and the inner liner sleeve can be adjusted and tightened by the adjustment sleeve on one side of the fixing sleeve two, so the operation is more convenient and quick, and the tightening effect and stability can be effectively improved by adjusting the fixing sleeve two, and the inner liner sleeves and plastic bag rolls of different lengths can be adapted to increase the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure of the rotating shaft and the inner sleeve of the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the transfer shaft in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the second fixing sleeve in the utility model.

[0018] In the figure: 1 rotating shaft, 2 driving gear plate, 3 anti-slip thread, 4 fixing sleeve 1, 5 inner sleeve, 6 plastic bag roll, 7 fixing sleeve 2, 8 extrusion groove, 9 extrusion head, 10 fastening sleeve, 11 adjusting sleeve, 12 fastening collar, 13 positioning bolt, 14 threaded head, 15 threaded sleeve, 16 threaded groove, 17 fastening bolt, 18 screw slot. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0020] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a plastic bag production feeding and unwinding mechanism, comprising

[0024] A rotating shaft 1, a driving toothed disc 2 is arranged on the outer side of one end of the rotating shaft 1, the driving toothed disc 2 is connected to the driving device to drive the rotating shaft 1 to rotate, an inner sleeve 5 is sleeved on the outer side of the rotating shaft 1, a plastic bag roll 6 is rolled on the outer side of the inner sleeve 5, and a fixing sleeve 1 4 and a fixing sleeve 2 7 are respectively sleeved and fastened on the outer side of the rotating shaft 1 at both ends of the inner sleeve 5;

[0025] Anti-skid threads 3 are arranged on the outer sides of both ends of the rotating shaft 1, wherein a fixing sleeve 1 4 is sleeved and fastened to the outer side of the anti-skid threads 3 on one side, and a fixing sleeve 2 7 is sleeved and fastened to the outer side of the anti-skid threads 3 on the other side, and an inner sleeve 5 is sleeved on the outer side of the rotating shaft 1 between the fixing sleeves 2 7, and extrusion grooves 8 are opened on the inner sides of both ends of the inner sleeve 5, and the extrusion grooves 8 correspond to the ends of the fixing sleeve 1 4 and the fixing sleeve 2 7. The anti-skid threads 3 can prevent the fixing sleeve 1 4 and the fixing sleeve 2 7 from sliding after being connected, thereby providing fastening stability, and the fastening bolts 17 connected to the fixing sleeve 1 4 and the fixing sleeve 2 7 can also cooperate with them for positioning, thereby further improving the fastening effect;

[0026] The fixing sleeve 1 4 includes a positioning sleeve, and an extrusion head 9 is integrally formed at the front end of the positioning sleeve. The extrusion head 9 is in the shape of a conical sleeve, and the extrusion head 9 is provided with inwardly retracted notches evenly distributed in a circular array. A convex block is protruded from the outer side of the positioning sleeve, and a screw hole is provided on the convex block. A fastening bolt 17 is connected in the screw hole. The fixing sleeve 1 4 can be pre-fixed on the rotating shaft 1, which is convenient for the insertion and positioning of the inner liner 5, making the fixing operation more convenient and quick, and improving the convenience of use;

[0027] The fixing sleeve 2 7 includes a fastening sleeve 10 and an adjusting sleeve 11, the adjusting sleeve 11 is threadedly connected to the front end of the fastening sleeve 10, the fastening sleeve 10 includes a fastening collar 12, a threaded head 14 is protruded from the front end of the fastening collar 12, a convex block is protruded from the outer side of the fastening collar 12, a screw hole is opened on the convex block, and a positioning bolt 13 is connected in the screw hole;

[0028] The adjusting sleeve 11 includes a threaded sleeve 15, the front end of the threaded sleeve 15 is integrally provided with an extrusion head 9, a threaded groove 16 is provided inside the rear end of the adjusting sleeve 11, and the adjusting sleeve 11 is threadedly connected to the outside of the threaded head 14 at the front end of the fastening sleeve 10 through the threaded groove 16. The adjusting sleeve 11 is provided with screw slots 18 protruding on both sides, and the screw slots 18 can be inserted into the rod to rotate the adjusting sleeve 11. A convex block is also provided on the outside of the adjusting sleeve 11, and a screw hole is opened on the convex block. The screw hole is connected to the fastening bolt 17, and the extrusion heads at the ends of the fixing sleeve 1 4 and the fixing sleeve 2 7 are provided. 9 is inserted and fastened in the extrusion grooves 8 at both ends of the inner liner 5. The inner liner can be adjusted and fastened through the fixing sleeve 2 7 to fix the material tray as a whole, ensure stable feeding, and avoid the inner liner and the plastic bag roll wound outside from shaking, sliding, offset, skew and other problems. The setting of the screw slot 18 is convenient for inserting the plug rod therein, so as to facilitate the rotation of the adjustment sleeve 11 for feeding, so as to achieve the effect of fastening the inner liner 5, and the outer side surface of the extrusion head 9 is an inclined surface, the more it is squeezed, the higher the tightness, which can better fix the inner liner 5 and the plastic bag roll 6, and improve the use effect;

[0029] The fastening bolt 17 includes a nut at the upper end, a hexagonal groove is provided in the middle of the upper end of the nut, a screw is integrally formed at the lower end of the nut, a positioning head is rotatably connected to the lower end of the screw, a limit strip is provided on the outer side of the positioning head to prevent it from rotating, a groove corresponding to the limit strip is provided in the screw hole, and a positioning card is provided at the lower end of the positioning head, and the positioning card corresponds to the anti-slip thread 3 on the rotating shaft 1.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding and unwinding mechanism for plastic bag production, characterized in that: include A rotating shaft (1), a driving gear disc (2) is arranged on the outer side of one end of the rotating shaft (1), the driving gear disc (2) is connected to a driving device for driving the rotating shaft (1) to rotate, an inner sleeve (5) is sleeved on the outer side of the rotating shaft (1), a plastic bag roll (6) is rolled on the outer side of the inner sleeve (5), and a fixing sleeve (4) and a fixing sleeve (7) are respectively sleeved and fastened on the outer side of the rotating shaft (1) at both ends of the inner sleeve (5).

2. A plastic bag production feeding and unwinding mechanism according to claim 1, characterized in that: Anti-skid threads (3) are arranged on the outer sides of both ends of the rotating shaft (1), wherein a fixing sleeve (4) is sleeved and fastened to the outer side of the anti-skid threads (3) on one side, and a fixing sleeve (7) is sleeved and fastened to the outer side of the anti-skid threads (3) on the other side, and an inner sleeve (5) is sleeved on the outer side of the rotating shaft (1) between the fixing sleeves (7), and extrusion grooves (8) are arranged on the inner sides of both ends of the inner sleeve (5), and the extrusion grooves (8) correspond to the ends of the fixing sleeve (4) and the fixing sleeve (7).

3. A feeding and unwinding mechanism for producing plastic bags according to claim 1, characterized in that: The fixing sleeve (4) comprises a positioning sleeve, and an extrusion head (9) is integrally formed at the front end of the positioning sleeve, and the extrusion head (9) is in the shape of a conical sleeve, and the extrusion head (9) is provided with inwardly retracted grooves evenly distributed in a circular array, and a convex block is protruded from the outer side of the positioning sleeve, and a screw hole is provided on the convex block, and a fastening bolt (17) is connected in the screw hole.

4. A plastic bag production feeding and unwinding mechanism according to claim 1, characterized in that: The second fixing sleeve (7) comprises a fastening sleeve (10) and an adjusting sleeve (11), wherein the adjusting sleeve (11) is threadedly connected to the front end of the fastening sleeve (10), and the fastening sleeve (10) comprises a fastening collar (12), wherein the front end of the fastening collar (12) is provided with a threaded head (14), and a convex block is protruded from the outer side of the fastening collar (12), wherein a screw hole is provided on the convex block, and a positioning bolt (13) is connected in the screw hole.

5. A feeding and unwinding mechanism for producing plastic bags according to claim 4, characterized in that: The adjusting sleeve (11) comprises a threaded sleeve (15), the front end of the threaded sleeve (15) is integrally provided with an extrusion head (9), the rear end of the adjusting sleeve (11) is provided with a threaded groove (16), the adjusting sleeve (11) is threadedly connected to the outside of the threaded head (14) at the front end of the fastening sleeve (10) through the threaded groove (16), both sides of the adjusting sleeve (11) are provided with screwing slots (18), the screwing slots (18) can be inserted with a rod to rotate the adjusting sleeve (11), the outer side of the adjusting sleeve (11) is also provided with a convex block, the convex block is provided with a screw hole, and a fastening bolt (17) is connected in the screw hole, and the extrusion heads (9) at the ends of the fixing sleeve 1 (4) and the fixing sleeve 2 (7) are inserted and fastened in the extrusion grooves (8) at the two ends of the inner bushing (5).

6. A plastic bag production feeding and unwinding mechanism according to claim 5, characterized in that: The fastening bolt (17) comprises a nut at the upper end, a hexagonal groove is provided in the middle of the upper end of the nut, a screw rod is integrally formed at the lower end of the nut, a positioning head is rotatably connected to the lower end of the screw rod, a limiting strip is provided on the outer side of the positioning head to prevent the positioning head from rotating, a groove corresponding to the limiting strip is provided in the screw hole, and a positioning card is provided at the lower end of the positioning head, and the positioning card corresponds to the anti-slip thread (3) on the rotating shaft (1).