Non-contact chain wheel structure of stretch film packaging machine
By designing no contact link structure in the stretch film packaging machine, the rectangular frame structure of the chip head and the cone -surface structure of the top wheels are used to combine the design of the positioning column and threaded hole. The problem of blocking and wear, the convenience of better membrane clamping and replacing the top wheels.
Patent Information
- Application Number
- CN202421250517.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
In existing stretch film packaging machines, when the clamping chain comes into contact with the sprocket, the stretch film may be blocked and the chain wear, and the concentricity may be easily lost when replacing the sprocket.
Design a kind of unprepared sprocket structure, through the rectangular frame structure and sliding device of the pinch of the pinch, the pinch can stand up the clamping membrane; ; The design of the positioning column and the thread hole is convenient for the fast positioning of the top wheels and the sprocket, and maintain the same mind.
Effectively avoid the blocking and wear of the connection between the clamping chain and the link between the sprocket, which improves the clamping effect of the film, facilitates the replacement of the top wheels, ensures that it is concentric with the sprocket, and extend the service life of the equipment.
Smart Images
Figure CN222408889U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stretch film packaging machines, and more specifically, particularly to a contactless sprocket structure of a stretch film packaging machine. Background Art
[0002] The fully automatic stretch film vacuum packaging machine is also called the fully automatic plastic box thermoforming vacuum packaging machine. The principle of the fully automatic stretch film vacuum packaging machine is to use a forming mold to heat the film first, then use the forming mold to punch it into the shape of a container, and then put the package into the formed lower film cavity, and then vacuum pack it. It is mainly composed of a vacuum system, an air-inflating sealing system, a hot pressing sealing system, an electrical control system, etc.
[0003] Both sides of the stretch film need to be clamped in the clamping chain for transmission. When the chain rotates to the sprocket, the clamping part is pushed open to clamp the stretch film, but the top part of the clamping part is vertically lifted up, which may block the stretch film. Moreover, the position of the lifting clamping chain may cause wear after long-term use and needs to be replaced, but it is easy to be out of center with the sprocket during replacement.
[0004] In view of this, research and improvement are conducted on the existing problems, and a contactless sprocket structure for a stretch film packaging machine is provided, aiming to achieve the purpose of solving the problem and improving the practical value through this technology. Utility Model Content
[0005] The utility model aims to provide a contactless sprocket structure for a stretch film packaging machine to solve the problems and shortcomings raised in the above-mentioned background technology.
[0006] To achieve the above object, the utility model provides a non-contact sprocket structure of a stretch film packaging machine, which is achieved by the following specific technical means:
[0007] A contactless sprocket structure for a stretch film packaging machine comprises: a sprocket, a chain, a clamping seat, a receiving groove, a chuck, a spring, a positioning hole, a top wheel, a positioning column, and a fixing bolt; the sprocket is meshed with the chain, and the clamping seat bolts are fixed to the outer wall of the chain, and a receiving groove is provided on the top of the clamping seat; the two sides of the chuck are plugged and connected to the inner wall of the receiving groove by a clearance fit sliding manner; the two ends of the spring are plugged and connected to the outer walls of the clamping seat and the chuck; a positioning hole is provided on the outer wall of the sprocket on the side close to the clamping seat; a positioning column is provided on the outer wall of the top wheel, and the positioning column is plugged and connected to the inner wall of the positioning hole, and the top wheel is fixedly connected to the sprocket by a fixing bolt.
[0008] As a further optimization of the technical solution, the utility model provides a contactless sprocket structure for a stretch film packaging machine, wherein the chuck is a rectangular frame structure, and the two sides of the chuck are plugged and connected to the inner wall of the receiving groove as a sliding device, and the inner wall on the upper side of the chuck abuts against the top of the chuck seat.
[0009] As a further optimization of the technical solution, the utility model provides a non-contact sprocket structure for a stretch film packaging machine, wherein the top of the inner wall of the clamp seat and the bottom of the inner wall of the clamp are both provided with cylindrical protrusions, and the two ends of the spring are plugged and connected to the outer wall of the cylindrical protrusion.
[0010] As a further optimization of the technical solution, in the utility model, the outer wall of the top wheel of the contactless sprocket structure of a stretch film packaging machine is a conical structure.
[0011] As a further optimization of the technical solution, in the utility model, a contactless sprocket structure for a stretch film packaging machine, one end of the positioning column close to the top wheel is a funnel-shaped structure, and the positioning hole is a hole for installing the positioning column.
[0012] As a further optimization of the technical solution, the utility model provides a contactless sprocket structure for a stretch film packaging machine, wherein threaded holes for installing fixing bolts are provided at corresponding positions on the outer walls of the sprocket and the top wheel, and the threaded holes are provided at the center position of the positioning hole.
[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0014] 1. The chuck of the utility model is a rectangular frame structure, and the two sides of the chuck are plugged and connected to the inner wall of the containing groove to form a sliding device, and the inner wall on the upper side of the chuck abuts against the top of the clamp seat; the top of the inner wall of the clamp seat and the bottom of the inner wall of the chuck are both provided with cylindrical protrusions, and the two ends of the spring are plugged and connected to the outer wall of the cylindrical protrusion, which can make the chuck push up and clamp the stretch film between the clamp seat and the chuck.
[0015] 2. The outer wall of the top wheel of the utility model is a conical structure. When the chuck rotates to the top wheel, it is lifted up. The inclined surface of the top wheel can tilt the chuck up, making it easier to lay the stretch film on the clamp seat and preventing the chuck from hindering the clamping of the stretch film.
[0016] 3. The end of the positioning column of the utility model close to the top wheel is a funnel-shaped structure, and the positioning hole is a hole for installing the positioning column; threaded holes for installing fixing bolts are provided at corresponding positions on the outer walls of the sprocket and the top wheel, and the threaded holes are provided at the center position of the positioning hole, which is convenient for rapid positioning when replacing the top wheel, so that the top wheel and the sprocket are concentric.
[0017] 4. The utility model improves the contactless sprocket structure of a stretch film packaging machine, has the advantages of reasonable structural design, convenient clamping of the stretch film, and convenient replacement of the top wheel, thereby effectively solving the problems and shortcomings in the existing technology and equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;
[0021] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;
[0022] Figure 4 It is a partial structural schematic diagram of the utility model;
[0023] Figure 5 It is a partial structural schematic diagram of the utility model;
[0024] Figure 6 It is a schematic diagram of the partial explosion structure of the utility model.
[0025] In the figure: sprocket 1, chain 2, clamp seat 3, receiving groove 4, clamp head 5, spring 6, positioning hole 7, top wheel 8, positioning column 9, fixing bolt 10. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0027] See also Figures 1 to 6 The utility model provides a specific technical implementation scheme of a contactless sprocket structure of a stretch film packaging machine:
[0028] A contactless sprocket structure for a stretch film packaging machine comprises: a sprocket 1, a chain 2, a clamp seat 3, a receiving groove 4, a chuck 5, a spring 6, a positioning hole 7, a top wheel 8, a positioning column 9, and a fixing bolt 10; the sprocket 1 is meshed with the chain 2, and the clamp seat 3 is bolted to the outer wall of the chain 2, and the top of the clamp seat 3 is provided with a receiving groove 4; the two sides of the chuck 5 are plugged and connected to the inner wall of the receiving groove 4 by a clearance fit sliding manner; the chuck 5 is a rectangular frame structure, and the two sides of the chuck 5 are plugged and connected to the inner wall of the receiving groove 4 as a sliding device, and the inner wall on the upper side of the chuck 5 abuts against the top of the clamp seat 3; the top of the inner wall of the clamp seat 3 and the bottom of the inner wall of the chuck 5 are both provided with cylindrical protrusions, and the two ends of the spring 6 are plugged and connected to the outer wall of the cylindrical protrusion, so that the chuck 5 can be pushed up to clamp the stretch film between the clamp seat 3 and the chuck 5.
[0029] The two ends of the spring 6 are plug-connected on the outer walls of the clamp seat 3 and the clamp head 5; a positioning hole 7 is opened on the outer wall of the sprocket 1 close to the clamp seat 3; a positioning column 9 is provided on the outer wall of the top wheel 8, and the positioning column 9 is plug-connected on the inner wall of the positioning hole 7, and the top wheel 8 is fixedly connected to the sprocket 1 by a fixing bolt 10; the outer wall of the top wheel 8 is set as a conical structure, when the clamp head 5 rotates to the top wheel 8, it is lifted up, and the inclined surface of the top wheel 8 can make the clamp head 5 tilted and lifted up, so that the stretch film is laid on the clamp seat 3, and the clamp head 5 is prevented from hindering the clamping of the stretch film.
[0030] The end of the positioning column 9 close to the top wheel 8 is a funnel-shaped structure, and the positioning hole 7 is a hole for installing the positioning column 9; threaded holes for installing fixing bolts 10 are provided at corresponding positions on the outer walls of the sprocket 1 and the top wheel 8, and the threaded hole is provided at the center position of the positioning hole 7, which is convenient for rapid positioning when replacing the top wheel 8, so that the top wheel 8 is concentric with the sprocket 1.
[0031] Specific implementation steps:
[0032] When the sprocket 1 rotates, the chain 2 can drive the clamp seat 3 and the chuck 5 to rotate accordingly. When the chuck 5 rotates to the top wheel 8, it is lifted up, which can lift the chuck 5 upward to clamp the stretch film between the clamp seat 3 and the chuck 5. The inclined surface of the top wheel 8 can tilt the chuck 5 and lift it up, which is convenient for laying the stretch film on the clamp seat 3 and preventing the chuck 5 from obstructing the clamping of the stretch film. If the top wheel 8 needs to be replaced, the positioning column 9 can be inserted into the positioning hole 7 to facilitate quick positioning when replacing the top wheel 8, so that the top wheel 8 is concentric with the sprocket 1.
[0033] In summary: the contactless sprocket structure of the stretch film packaging machine is a rectangular frame structure through the chuck, and the two sides of the chuck are plugged and connected to the inner wall of the containing groove as a sliding device, and the inner wall on the upper side of the chuck abuts against the top of the clamp seat; the top of the inner wall of the clamp seat and the bottom of the inner wall of the chuck are both provided with cylindrical protrusions, and the two ends of the spring are plugged and connected to the outer wall of the cylindrical protrusion, which can make the chuck push up and clamp the stretch film between the clamp seat and the chuck; the outer wall of the top wheel is a conical structure, and when the chuck rotates to the top wheel, it is pushed up, and the inclined surface of the top wheel can make the chuck tilt and push up, which is convenient for stretching the film The sprocket wheel is provided with a plurality of sprocket wheels, and the sprocket wheels are provided with a plurality of sprocket wheels which are provided with a plurality of sprocket wheels respectively. The sprocket wheels are provided with a plurality of sprocket wheels which are provided with a plurality of sprocket wheels respectively. The sprocket wheels are provided with a plurality of sprocket wheels respectively. The sprocket wheels are provided with a plurality of sprocket wheels respectively. The sprocket wheels are provided with a plurality of sprocket wheels respectively. The sprocket wheels are provided with a plurality of sprocket wheels respectively.
[0034] 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 contactless sprocket structure for a stretch film packaging machine, comprising: Sprocket (1), chain (2), clamp seat (3), receiving groove (4), chuck (5), spring (6), positioning hole (7), top wheel (8), positioning column (9), fixing bolt (10); characterized in that: the sprocket (1) is meshed with the chain (2), and the clamp seat (3) is bolted to the outer wall of the chain (2), and the top of the clamp seat (3) is provided with a receiving groove (4); the two sides of the chuck (5) are plugged and connected to the inner wall of the receiving groove (4) by a clearance fit sliding manner; the two ends of the spring (6) are plugged and connected to the outer walls of the clamp seat (3) and the chuck (5); the outer wall of the sprocket (1) close to the clamp seat (3) is provided with a positioning hole (7); the outer wall of the top wheel (8) is provided with a positioning column (9), and the positioning column (9) is plugged and connected to the inner wall of the positioning hole (7), and the top wheel (8) is fixedly connected to the sprocket (1) by fixing bolts (10).
2. The contactless sprocket structure of a stretch film packaging machine according to claim 1, characterized in that: The clamp (5) is a rectangular frame structure, and the two sides of the clamp (5) are plugged and connected to the inner wall of the receiving groove (4) to form a sliding device, and the inner wall on the upper side of the clamp (5) abuts against the top of the clamp seat (3).
3. The contactless sprocket structure of a stretch film packaging machine according to claim 1, characterized in that: The top of the inner wall of the clamp seat (3) and the bottom of the inner wall of the clamp head (5) are both provided with cylindrical protrusions, and the two ends of the spring (6) are plug-connected to the outer walls of the cylindrical protrusions.
4. The contactless sprocket structure of a stretch film packaging machine according to claim 1, characterized in that: The outer wall of the top wheel (8) is a conical structure.
5. The contactless sprocket structure of a stretch film packaging machine according to claim 1, characterized in that: The end of the positioning column (9) close to the top wheel (8) is a funnel-shaped structure, and the positioning hole (7) is a hole for installing the positioning column (9).
6. The contactless sprocket structure of a stretch film packaging machine according to claim 1, characterized in that: Threaded holes for installing fixing bolts (10) are provided at corresponding positions on the outer walls of the sprocket (1) and the top wheel (8), and the threaded holes are provided at the center of the positioning hole (7).