Self-adjusting film winding device for packaging machine

Abstract

The invention discloses a self-adjusting type film winding device for a packaging machine. The self-adjusting type film winding device comprises a positioning frame, a film conveying assembly, a fixing frame and a film winding assembly. Due to the fact that the moving block moves left and right on the positioning frame in a reciprocating mode all the time, the film belt can move left and right along with the moving block, the film belt is evenly wound around the multiple film winding supports left and right, even distribution of the film belt is achieved, when the film belt is wound more and more, the pulling force of the rotating shaft on the film belt is larger and larger, and the film belt is more and more evenly wound. When the tensile force is increased to a certain degree, the driving ring can slip between the two clamping ring bodies, so that the film belt cannot be quickly wound or even wound temporarily, the film belt is partially stacked, the tensile force of the film belt can be reduced or even disappears, the driving ring can drive the two clamping ring bodies to rotate again, and the film belt can be continuously wound. In this way, automatic control is achieved, and the film belt is prevented from being snapped.

Description

Technical Field

[0001] The invention belongs to the manufacturing field of packaging machines, and in particular relates to a film winding device for a self-adjusting packaging machine. Background Art

[0002] With the rapid development of modern industry and the continuous improvement of the consumer market's requirements for product packaging efficiency and quality, the research and development and upgrading of packaging machines are constantly underway. Packaging machines are mechanical equipment used to wrap products in packaging materials for protection, storage or transportation. They are widely used in many industries such as food, beverages, medicine, cosmetics, and chemicals. In the existing food packaging system, food is generally packaged after processing. When packaging food with packaging film, due to size issues, the packaging film generally needs to be cut so that the width of the packaging film meets the packaging requirements. When the cut packaging film tape is recycled, it is often impossible to recycle it in an orderly and regular manner, making subsequent storage very inconvenient. At the same time, when recycling the film tape, the film tape is constantly rotating and winding, making the diameter of the film roll larger and larger, so that the outermost linear speed of the film roll is getting larger and larger, making the outermost tension of the film roll larger and larger. When the tension is large to a certain extent, the film tape will be broken or the packaging operation will be affected. Therefore, it is necessary to upgrade the structure of the film tape reel. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the present invention solves the problem of providing a self-adjusting film winding device for a packaging machine, which can roll up the film strip in an orderly and convenient manner and effectively prevent the film strip from being broken.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A film winding device for a self-adjusting packaging machine comprises a positioning frame, a film conveying assembly, a fixing frame, and a film winding assembly; the film conveying assembly is installed on the positioning frame; the film conveying assembly comprises a moving block, a connecting bracket, a side transmission roller, and a bottom transmission roller; a moving block is installed on the positioning frame for reciprocating movement left and right; a connecting bracket is installed on the upper end of the moving block; a side transmission roller is installed on the left and right sides of the connecting bracket respectively; a bottom transmission roller is installed on the rear side of the connecting bracket; a film winding assembly is installed on the side of the fixing frame; the film winding assembly comprises a rotating shaft, a film winding bracket, a driving ring, a clamping ring body, a baffle, and a pressure spring; a rotating shaft is rotatably installed on one side of the fixing frame; A plurality of film winding supports are evenly installed around one end of the rotating shaft; baffles are fixedly installed on both sides of the other end of the rotating shaft, a clamping ring body is installed on the inner side of each baffle, and the two clamping ring bodies are slidably sleeved on the rotating shaft, a driving ring is installed between the two clamping ring bodies, and the driving ring is rotatably sleeved and installed on the rotating shaft; a pressure spring is installed between the inner side of the baffle and the outer side of the clamping ring body, the pressure spring is sleeved on the rotating shaft, the pressure spring presses the clamping ring body and makes the two sides of the driving ring be clamped and positioned by the two clamping ring bodies; a film belt is inserted between the side transmission rollers, and the film belt is wrapped around the outer sides of the plurality of film winding supports after passing between the two side transmission rollers.

[0005] Furthermore, a plurality of guide rods are evenly arranged around the baffle; a plurality of guide grooves are provided around the clamping ring body; and the guide grooves of the clamping ring body are respectively connected to the guide rods.

[0006] Furthermore, fixed bearings are respectively provided at both ends of one side of the fixing frame; and the rotating shaft is rotatably mounted on the fixed bearings.

[0007] Furthermore, a rotating screw and a limiting column are respectively provided on the upper and lower parts of the positioning frame; a threaded channel and a limiting channel are respectively provided on the upper and lower sides of the moving block; the rotating screw is threadedly connected to the threaded channel; the limiting column is connected to the limiting channel; the rotating screw rotates forward and reversely and drives the moving block to move back and forth left and right.

[0008] Furthermore, one end of the rotating screw extends to the outside of the positioning frame and is connected to a driving gear.

[0009] Furthermore, limiting ring plates are respectively provided on both sides of one end of the rotating shaft, and the two limiting ring plates are located at both ends of the plurality of film winding brackets.

[0010] Furthermore, the driving ring is a sprocket structure.

[0011] Furthermore, the side transmission rollers are distributed in a vertical structure.

[0012] Furthermore, the bottom transmission rollers are distributed in a horizontal structure.

[0013] Furthermore, the positioning frame is in a U-shaped structure.

[0014] The beneficial effects of the present invention are as follows: The film strip of the present invention can be wound and rolled conveniently and orderly. After the film strip passes through two side driving rollers, it is wound around the outer sides of multiple film winding supports. Since the moving block is always moving back and forth on the positioning frame, the film strip will also move left and right. In this way, the film strip is evenly wound left and right around the multiple film winding supports to achieve uniform distribution of the film strip. When the film strip is rolled larger and larger, the outer linear speed of the formed film roll becomes larger and larger, so that the pulling force of the rotating shaft on the film strip will become larger and larger. When the pulling force reaches a certain level, the driving ring will slip between the two clamping ring bodies, so that the driving ring cannot fully drive the two clamping ring bodies to rotate, so that the rotation speed of the rotating shaft slows down or even cannot continue to rotate, so that the film strip cannot be rolled up quickly or even temporarily stops rolling up, causing part of the film strip to accumulate, so that the pulling force of the film strip will be reduced or even disappear, so that the driving ring can drive the two clamping ring bodies to rotate again, and then drive the rotating shaft to rotate and roll the film, so as to achieve automatic control and prevent the film strip from being broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the positioning frame and the film transport component of the present invention.

[0016] Figure 2 It is a schematic structural diagram of the fixing frame and the film winding assembly of the present invention.

[0017] Figure 3 It is a partially enlarged structural schematic diagram of the film transport component of the present invention.

[0018] Figure 4 It is a partially enlarged structural schematic diagram of the film transport component of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4As shown, a film winding device for a self-adjusting packaging machine includes a positioning frame 1, a film conveying assembly 2, a fixed frame 3, and a film winding assembly 4; the film conveying assembly 2 is installed on the positioning frame 1; the film conveying assembly 2 includes a moving block 21, a connecting bracket 22, a side transmission roller 23, and a bottom transmission roller 24; a moving block 21 is installed on the positioning frame 1 for reciprocating movement left and right; a connecting bracket 22 is installed on the upper end of the moving block 21; a side transmission roller 23 is installed on the left and right sides of the connecting bracket 22 respectively; a bottom transmission roller 24 is installed on the rear side of the connecting bracket 22; a film winding assembly 4 is installed on the side of the fixed frame 3; the film winding assembly 4 includes a rotating shaft 41, a film winding bracket 42, a driving ring 43, a clamping ring body 44, a baffle 45, and a pressure spring 46; a rotating shaft 41 is rotatably installed on one side of the fixed frame 3; a plurality of film winding brackets 42 are evenly installed around one end of the rotating shaft 41; the other end of the rotating shaft 41 Baffles 45 are fixedly installed on both sides, and a clamping ring body 44 is installed on the inner side of the two baffles 45 respectively. The two clamping ring bodies 44 are slidably sleeved on the rotating shaft 41, and a driving ring 43 is installed between the two clamping ring bodies 44. The driving ring 43 is rotatably sleeved and installed on the rotating shaft 41; a pressure spring 46 is installed between the inner side of the baffle 45 and the outer side of the clamping ring body 44, and the pressure spring 46 is sleeved on the rotating shaft 41. The pressure spring 46 presses the clamping ring body 44 and makes the two sides of the driving ring 43 clamped and positioned by the two clamping ring bodies 44. Through the friction between the clamping ring body 44 and the driving ring 43, when the driving ring 43 is driven to rotate by the external driving structure, the two clamping ring bodies 44 can be driven to rotate synchronously, thereby driving the entire rotating shaft 41 to rotate; a film belt is connected between the side transmission rollers 23, and the film belt passes between the two side transmission rollers 23 and then is wrapped around the outer sides of multiple film winding brackets 42. The film transporting assembly 2 and the film winding assembly 4 are distributed front and back.

[0021] like Figures 1 to 4 As shown, in order to improve the moving stability of the clamping ring body 44, further, a plurality of guide rods 451 are evenly arranged around the baffle 45; a plurality of guide grooves 441 are opened around the clamping ring body 44; and the guide grooves 441 of the clamping ring body 44 are respectively connected to the guide rods 451.

[0022] like Figures 1 to 4 As shown, in order to ensure the stable rotation of the rotating shaft 41 , further, fixed bearings 5 ​​are respectively provided at both ends of one side of the fixing frame 3 ; the rotating shaft 41 is rotatably mounted on the fixed bearings 5 ​​.

[0023] like Figures 1 to 4As shown, in order to facilitate the reciprocating movement of the moving block 21, further, the upper and lower parts of the positioning frame 1 are respectively provided with a rotating screw 6 and a limiting column 7; the upper and lower parts of the moving block 21 are respectively provided with a threaded channel and a limiting channel; the rotating screw 6 is threadedly connected to the threaded channel; the limiting column 7 is connected to the limiting channel; the rotating screw 6 rotates forward and reversely and drives the moving block 21 to reciprocate left and right. Further, one end of the rotating screw 6 extends to the outside of the positioning frame 1 and is connected to a driving gear 61. The rotation of the driving gear 61 can be controlled by an external power mechanism.

[0024] like Figures 1 to 4 As shown, in order to limit the film roll formed by winding, further, the two sides of one end of the rotating shaft 41 are respectively provided with limiting ring plates 8, and the two limiting ring plates 8 are located at the two ends of the multiple film winding brackets 42. Further, the driving ring 43 is a sprocket structure. Further, the side transmission roller 23 is distributed in a vertical structure. Further, the bottom transmission roller 24 is distributed in a horizontal structure. Further, the positioning frame 1 is a U-shaped structure.

[0025] The film tape of the present invention can be wound and rolled conveniently and orderly. After passing through the two side driving rollers 23, the film tape is wound around the outer sides of the multiple film winding supports 42. Since the moving block 21 is constantly moving back and forth left and right on the positioning frame 1, the film tape will also move left and right, so that the film tape is evenly wound left and right around the multiple film winding supports 42, thereby achieving uniform distribution of the film tape. When the film tape is rolled larger and larger, the outer side linear speed of the formed film roll becomes larger and larger, so that the pulling force of the rotating shaft 41 on the film tape becomes larger and larger. When the force reaches a certain level, the drive ring 43 will slip between the two clamping ring bodies 44, making it impossible for the drive ring 43 to fully drive the two clamping ring bodies 44 to rotate, so that the rotation speed of the rotating shaft 41 slows down or even cannot continue to rotate, so that the film tape cannot be quickly rolled up or even temporarily stops rolling up, causing part of the film tape to accumulate. In this way, the tension of the film tape will be reduced or even disappear, and the drive ring 43 can drive the two clamping ring bodies 44 to rotate again, and then drive the rotating shaft 41 to rotate and roll up the film, thereby realizing automatic control and preventing the film tape from being broken.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A film winding device for a self-adjusting packaging machine, characterized in that: It includes a positioning frame, a film transport component, a fixed frame, and a film winding component; the film transport component is installed on the positioning frame; the film transport component includes a moving block, a connecting bracket, a side transmission roller, and a bottom transmission roller; a moving block is installed on the positioning frame for reciprocating movement left and right; a connecting bracket is installed on the upper end of the moving block; a side transmission roller is installed on the left and right sides of the connecting bracket respectively; a bottom transmission roller is installed on the rear side of the connecting bracket; the film winding component is installed on the side of the fixed frame; the film winding component includes a rotating shaft, a film winding bracket, a driving ring, a clamping ring body, a baffle, and a pressure spring; a rotating shaft is rotatably installed on one side of the fixed frame; one end of the rotating shaft Multiple film winding brackets are evenly installed around; baffles are fixedly installed on both sides of the other end of the rotating shaft, and a clamping ring body is installed on the inner side of the two baffles respectively. The two clamping ring bodies are both slidably sleeved on the rotating shaft, and a driving ring is installed between the two clamping ring bodies, and the driving ring is rotatably sleeved and installed on the rotating shaft; a pressure spring is respectively installed between the inner side of the baffle and the outer side of the clamping ring body, and the pressure spring is sleeved on the rotating shaft. The pressure spring presses the clamping ring body and allows the two sides of the driving ring to be clamped and positioned by the two clamping ring bodies; a film belt is inserted between the side transmission rollers, and the film belt passes between the two side transmission rollers and is wrapped around the outer sides of the multiple film winding brackets.

2. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: A plurality of guide rods are evenly arranged around the baffle; a plurality of guide grooves are arranged around the clamping ring body; and the guide grooves of the clamping ring body are respectively connected to the guide rods.

3. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: Fixed bearings are respectively arranged at two ends of one side of the fixing frame; and the rotating shaft is rotatably mounted on the fixed bearings.

4. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: A rotating screw and a limiting column are respectively provided on the upper and lower sides of the positioning frame; a threaded channel and a limiting channel are respectively provided on the upper and lower sides of the moving block; the rotating screw is threadedly connected to the threaded channel; the limiting column is connected to the limiting channel; the rotating screw rotates forward and reversely and drives the moving block to move back and forth left and right.

5. The film winding device for a self-adjusting packaging machine according to claim 4, characterized in that: One end of the rotating screw rod extends to the outside of the positioning frame and is connected with a driving gear.

6. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: Limiting ring plates are respectively arranged on both sides of one end of the rotating shaft, and the two limiting ring plates are located at both ends of the plurality of film winding brackets.

7. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: The driving ring is a sprocket structure.

8. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: The side transmission rollers are distributed in a vertical structure.

9. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: The bottom transmission rollers are distributed in a horizontal structure.

10. The film winding device for a self-adjusting packaging machine according to claim 1, characterized in that: The positioning frame is in a U-shaped structure.

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