Film blowing equipment for heat shrinkage film production
By designing a quantitative blanking structure and agitating buffer structure in the heat shrink film blowing equipment, combining the rotating motor and baffle mechanism, the uniform entry of plastic particles is achieved, and the inequality of feeding and uneven feeding in the prior art is solved. The problem of this paper improves product quality and equipment maintenance convenience.
Patent Information
- Application Number
- CN202322614359.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The feeding device of existing heat shrink film blowing machines is likely to cause plastic particles to get stuck, disassembly disassembly, unevenly cut, and inconvenient use.
A feed pipe including a quantitative blanking structure and a stirring buffer structure is designed. The inlet volume of plastic particles is controlled through a rotating electric machine, a motion change mechanism and a quantity control mechanism, and the uniform entry of plastic particles is achieved by using a baffle mechanism.
It solves the problem of uncontrollable entry of plastic particles, improves product quality, simplifies the maintenance process, and enhances the convenience of equipment use.
Smart Images
Figure CN222223457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film blowing equipment, in particular to film blowing equipment for producing heat shrinkable films. Background Art
[0002] The film blowing machine heats and melts plastic particles and then blows them into thin films. There are many types of film blowing machines, including PE, POF, PVC, etc. Brand new particles are used to blow out new materials with uniform color, cleanness, and good bag stretching. Shrink film is extremely widely used nowadays. The shrink film is wrapped around the outside of the product or package. After heating, the shrink film is wrapped tightly around the product or package, fully displaying the appearance of the item, improving the product's sales, and increasing its beauty and value. At the same time, the packaged items can be sealed, moisture-proof, and pollution-proof, and protect the goods from external impacts. It has a certain cushioning effect and is suitable for tight packaging of multiple items and pallet packaging. The heat shrink film blowing machine is a device that heats and melts plastic particles and then blows them into thin films.
[0003] Most of the existing heat shrink film blowing machines use a combination of a transmission device and a funnel as the feeding device. This type of feeding device can easily cause plastic particles to get stuck at the feed port, and the disassembly of the entire set of equipment is quite cumbersome, causing great trouble for later maintenance. In addition, this type of device does not discharge materials evenly and is not very convenient to use. Utility Model Content
[0004] The utility model provides a film blowing device for producing heat shrinkable films, which has the advantage that the film blowing device body can be quantitatively fed, so as to solve the problem that the feeding amount of the film blowing device body is uncontrollable.
[0005] In order to achieve the purpose of quantitative feeding of the film blowing equipment body, the utility model provides the following technical solutions: a film blowing equipment for heat shrink film production, comprising a film blowing equipment body and a feeding pipe installed on the bottom surface of the film blowing equipment body, a quantitative dropping structure is installed on the outer surface of the feeding pipe for controlling the amount of plastic particles entering the film blowing equipment body, a plurality of stirring and buffering structures are installed inside the feeding pipe for stirring the plastic particles and buffering the feeding speed of the plastic particles, and a funnel is installed on the top surface of the feeding pipe.
[0006] As a preferred technical solution of the utility model, the stirring buffer structure includes two ball shafts and two ball grooves. The two ball grooves are opened inside the feed pipe, and the two ball shafts are correspondingly and movably installed on the inner walls of the ball grooves. The outer surfaces of the two ball shafts are jointly installed with rotating paddles.
[0007] As a preferred technical solution of the utility model, the quantitative blanking structure includes a starting mechanism, a motion changing mechanism and a quantity control mechanism. The starting mechanism includes a top surface installed on the body of the film blowing equipment, and the motion changing mechanism is installed on the outer surface of the starting mechanism, which is used to convert the rotational motion into repetitive linear motion. The starting mechanism is used to increase the power of the motion changing mechanism, and the quantity control mechanism is used to control the amount of plastic particles entering the body of the film blowing equipment.
[0008] As a preferred technical solution of the utility model, the starting mechanism includes a rotating motor and a rotating spindle. The rotating motor is installed on the top surface of the film blowing equipment body, and the rotating spindle is movably installed on the outer surface of the output end of the rotating motor.
[0009] As a preferred technical solution of the utility model, the motion changing mechanism includes an annular groove and two movable sliders, the annular groove is opened on the outer surface of the rotating main shaft, the two movable sliders are movably installed on the inner wall of the annular groove, the outer surfaces of the two movable sliders are jointly installed with a connecting block, the outer surface of the film blowing equipment body is installed with a cylindrical shell, the outer surface of the connecting block is installed with a movable cylinder, and the outer surface of the movable cylinder is movably connected to the cylindrical shell.
[0010] As a preferred technical solution of the utility model, the amount control mechanism includes a fixed block and two baffle mechanisms. The fixed block is installed on the outer surface of the feed pipe. A cylindrical groove is opened inside the fixed block. The inner wall of the cylindrical groove is in active contact with the outer surface of the moving cylinder. The two baffle mechanisms are installed on the outer surface of the moving cylinder to control the amount of plastic particles entering the film blowing equipment body.
[0011] As an optimal technical solution of the utility model, the baffle mechanism includes a baffle body and a baffle cavity, the baffle body is installed on the outer surface of the moving cylinder, the baffle cavity is opened inside the feed pipe, and the outer surface of the baffle body is in active contact with the inner wall of the baffle cavity.
[0012] Compared with the prior art, the utility model provides a film blowing device for producing heat shrinkable films, which has the following beneficial effects:
[0013] In the film blowing equipment for producing heat shrinkable films, when the upper baffle body blocks the feed pipe, the lower baffle body moves toward the outside of the feed pipe, and the plastic particles directly stored by the two baffle bodies fall into the film blowing equipment body; when the upper baffle body moves toward the outside of the feed pipe, the lower baffle body blocks the feed pipe, and the plastic particles are stored between the two baffle bodies. The two baffle bodies perform reciprocating linear motion back and forth, so that the plastic particles enter the film blowing equipment body in an orderly manner, the plastic particles entering the film blowing equipment body are evenly heated, and the product quality produced by the film blowing equipment body is excellent. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the external structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the external structure of the utility model;
[0016] Figure 3 The utility model provides Figure 2 A schematic diagram of the structure enlargement of part A;
[0017] Figure 4 The utility model provides Figure 2 Schematic diagram of the enlarged structure of part B.
[0018] In the figure: 1. Film blowing equipment body; 2. Feed pipe; 3. Rotating motor; 4. Rotating main shaft; 5. Funnel; 6. Annular groove; 7. Moving slider; 8. Cylindrical shell; 9. Connecting block; 10. Moving cylinder; 11. Fixed block; 12. Rotating paddle; 13. Baffle body; 14. Baffle cavity; 15. Ball shaft; 16. Ball groove; 17. Cylindrical groove. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1-Figure 4 The utility model discloses a film blowing device for producing heat shrinkable films, comprising a film blowing device body 1 and a feeding pipe 2 installed on the bottom surface of the film blowing device body 1, a quantitative dropping structure is installed on the outer surface of the feeding pipe 2 for controlling the amount of plastic particles entering the film blowing device body 1, a plurality of stirring and buffering structures are installed inside the feeding pipe 2 for stirring the plastic particles and buffering the feeding speed of the plastic particles, and a funnel 5 is installed on the top surface of the feeding pipe 2.
[0021] Specifically, the stirring and buffering structure includes two ball shafts 15 and two ball grooves 16. The two ball grooves 16 are opened inside the feeding pipe 2. The two ball shafts 15 are correspondingly and movably installed on the inner walls of the ball grooves 16. The outer surfaces of the two ball shafts 15 are jointly installed with rotating paddles 12. The mixed plastic particles are poured into the funnel 5. The funnel 5 is convenient for pouring the plastic particles. When the plastic particles enter the feeding pipe 2, the plastic particles will fall onto the rotating paddles 12. The rotating paddles 12 drive the ball shafts 15 to move in the ball grooves 16. The rotating paddles 12 drive the plastic particles to rotate. The rotating paddles 12 stir the plastic particles and buffer the speed of plastic particle feeding.
[0022] Furthermore, the quantitative blanking structure includes a starting mechanism, a motion changing mechanism and a quantity control mechanism. The starting mechanism is installed on the top surface of the film blowing equipment body 1, and the motion changing mechanism is installed on the outer surface of the starting mechanism, which is used to convert the rotational motion into repetitive linear motion. The starting mechanism is used to increase the power of the motion changing mechanism, and the quantity control mechanism is used to control the amount of plastic particles entering the film blowing equipment body 1.
[0023] Furthermore, the starting mechanism includes a rotating motor 3 and a rotating spindle 4. The rotating motor 3 is installed on the top surface of the film blowing equipment body 1, and the rotating spindle 4 is movably installed on the outer surface of the output end of the rotating motor 3. The rotating motor 3 is connected to a power source, and the rotating motor 3 drives the rotating spindle 4 to rotate, and the rotating spindle 4 drives the annular groove 6 to rotate together.
[0024] Furthermore, the motion changing mechanism includes an annular groove 6 and two movable sliders 7. The annular groove 6 is opened on the outer surface of the rotating main shaft 4. The two movable sliders 7 are movably installed on the inner wall of the annular groove 6. The outer surfaces of the two movable sliders 7 are jointly installed with a connecting block 9. The outer surface of the film blowing equipment body 1 is installed with a cylindrical shell 8. The outer surface of the connecting block 9 is installed with a movable cylinder 10. The outer surface of the movable cylinder 10 is movably connected to the cylindrical shell 8.
[0025] Furthermore, the quantity control mechanism includes a fixed block 11 and two baffle mechanisms. The fixed block 11 is installed on the outer surface of the feed pipe 2. A cylindrical groove 17 is opened inside the fixed block 11. The inner wall of the cylindrical groove 17 is in active contact with the outer surface of the movable cylinder 10. The two baffle mechanisms are installed on the outer surface of the movable cylinder 10 to control the amount of plastic particles entering the film blowing equipment body 1. The two movable sliders 7 move in the annular groove 6. The two movable sliders 7 reciprocate back and forth in the annular groove 6. The two movable sliders 7 drive the connecting block 9 to perform reciprocating linear motion. The connecting block 9 drives the movable cylinder 10 to perform reciprocating linear motion inside the cylindrical shell 8. The movable cylinder 10 performs reciprocating linear motion back and forth in the cylindrical groove 17 inside the fixed block 11.
[0026] Furthermore, the baffle mechanism includes a baffle body 13 and a baffle cavity 14. The baffle body 13 is installed on the outer surface of the moving cylinder 10. The baffle cavity 14 is opened inside the feed pipe 2. The outer surface of the baffle body 13 is in active contact with the inner wall of the baffle cavity 14. The moving cylinder 10 drives the two baffle bodies 13 to move. The two baffle bodies 13 move in the baffle cavity 14. When the upper baffle body 13 blocks the feed pipe 2, the lower baffle body 13 moves toward the outside of the feed pipe 2. , the plastic particles directly dropped by the two baffle bodies 13 fall into the interior of the film blowing equipment body 1. When the upper baffle body 13 moves toward the outside of the feed pipe 2, the lower baffle body 13 blocks the feed pipe 2, and the plastic particles are stored between the two baffle bodies 13. The two baffle bodies 13 perform reciprocating linear motion back and forth, so that the plastic particles enter the interior of the film blowing equipment body 1 in an orderly manner, and the plastic particles entering the interior of the film blowing equipment body 1 are evenly heated, so that the product quality produced by the film blowing equipment body 1 is excellent.
[0027] The working principle and use process of the utility model are as follows: when it is necessary to feed the film blowing equipment body 1, the plastic particles are first mixed, and the mixed plastic particles are poured into the funnel 5. The funnel 5 is convenient for pouring the plastic particles. When the plastic particles enter the feeding pipe 2, the plastic particles will fall onto the rotating paddle 12. The rotating paddle 12 drives the ball shaft 15 to move in the ball groove 16. The rotating paddle 12 drives the plastic particles to rotate. The rotating paddle 12 stirs the plastic particles and buffers the feeding speed of the plastic particles.
[0028] At the same time, the rotating motor 3 is connected to the power supply, the rotating motor 3 drives the rotating spindle 4 to rotate, the rotating spindle 4 drives the annular groove 6 to rotate together, the two moving sliders 7 move in the annular groove 6, the two moving sliders 7 reciprocate back and forth in the annular groove 6, the two moving sliders 7 drive the connecting block 9 to reciprocate linear motion, the connecting block 9 drives the moving cylinder 10 to reciprocate linear motion inside the cylindrical shell 8, the moving cylinder 10 reciprocates linear motion back and forth in the cylindrical groove 17 inside the fixed block 11, the moving cylinder 10 drives the two baffle bodies 13 to move, the two baffle bodies 13 are in the baffle cavity 14, when the upper baffle body 13 blocks the feed pipe 2, the lower baffle body 13 moves toward the outside of the feed pipe 2, and the plastic particles directly collected by the two baffle bodies 13 fall into the inside of the film blowing equipment body 1; when the upper baffle body 13 moves toward the outside of the feed pipe 2, the lower baffle body 13 blocks the feed pipe 2, and the plastic particles are stored between the two baffle bodies 13. The two baffle bodies 13 perform reciprocating linear motion back and forth, so that the plastic particles enter the inside of the film blowing equipment body 1 in an orderly manner, and the plastic particles entering the inside of the film blowing equipment body 1 are evenly heated, so that the product quality produced by the film blowing equipment body 1 is excellent.
[0029] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[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 film blowing device for producing a heat shrinkable film, comprising a film blowing device body (1) and a feed pipe (2) installed on the bottom surface of the film blowing device body (1), characterized in that: The outer surface of the feed pipe (2) is equipped with a quantitative dropping structure for controlling the amount of plastic particles entering the film blowing equipment body (1); the interior of the feed pipe (2) is equipped with a plurality of stirring and buffering structures for stirring the plastic particles and buffering the feeding speed of the plastic particles; and the top surface of the feed pipe (2) is equipped with a funnel (5).
2. The film blowing equipment for producing heat shrinkable films according to claim 1, characterized in that: The stirring buffer structure comprises two ball shafts (15) and two ball grooves (16), wherein the two ball grooves (16) are arranged inside the feed pipe (2), the two ball shafts (15) are movably mounted on the inner walls of the ball grooves (16), and the outer surfaces of the two ball shafts (15) are jointly mounted with rotating paddles (12).
3. The film blowing equipment for producing heat shrinkable films according to claim 2, characterized in that: The quantitative blanking structure includes a starting mechanism, a motion changing mechanism and a quantity control mechanism. The starting mechanism is installed on the top surface of the film blowing equipment body (1). The motion changing mechanism is installed on the outer surface of the starting mechanism and is used to convert the rotational motion into repetitive linear motion. The starting mechanism is used to increase the power of the motion changing mechanism. The quantity control mechanism is used to control the amount of plastic particles entering the film blowing equipment body (1).
4. The film blowing equipment for producing heat shrinkable films according to claim 3, characterized in that: The starting mechanism comprises a rotating motor (3) and a rotating spindle (4); the rotating motor (3) is mounted on the top surface of the film blowing equipment body (1); and the rotating spindle (4) is movably mounted on the outer surface of the output end of the rotating motor (3).
5. The film blowing equipment for producing heat shrinkable films according to claim 3, characterized in that: The motion changing mechanism comprises an annular groove (6) and two movable sliders (7), wherein the annular groove (6) is provided on the outer surface of the rotating main shaft (4), and the two movable sliders (7) are movably mounted on the inner wall of the annular groove (6), and a connecting block (9) is commonly mounted on the outer surfaces of the two movable sliders (7), and a cylindrical shell (8) is mounted on the outer surface of the film blowing equipment body (1), and a movable cylinder (10) is mounted on the outer surface of the connecting block (9), and the outer surface of the movable cylinder (10) is movably connected to the cylindrical shell (8).
6. The film blowing equipment for producing heat shrinkable films according to claim 3, characterized in that: The control mechanism comprises a fixed block (11) and two baffle mechanisms, wherein the fixed block (11) is mounted on the outer surface of the feed pipe (2), a cylindrical groove (17) is provided inside the fixed block (11), the inner wall of the cylindrical groove (17) is in movable contact with the outer surface of the movable cylinder (10), and the two baffle mechanisms are mounted on the outer surface of the movable cylinder (10).
7. The film blowing equipment for producing heat shrinkable films according to claim 6, characterized in that: The baffle mechanism comprises a baffle body (13) and a baffle cavity (14); the baffle body (13) is mounted on the outer surface of the movable cylinder (10); the baffle cavity (14) is opened inside the feed pipe (2); the outer surface of the baffle body (13) is in movable contact with the inner wall of the baffle cavity (14).