Automatic roll changing device and film blowing equipment with same

Abstract

The utility model provides an automatic roll changing device and film blowing equipment with the same, and relates to the technical field of film blowing machines, the automatic roll changing device comprises a box body, the box body is provided with a feed port and a roll outlet, the box body is also provided with a roll inlet funnel, the box body is internally provided with a turntable, the turntable is provided with a plurality of auxiliary columns, the auxiliary columns are matched with a material roll, and the roll inlet funnel is provided with a roll outlet. A driving device is further arranged on the front side of the box body and used for driving the auxiliary column to rotate, a cutting knife is further arranged in the box body, a roll outlet table is arranged at the roll outlet, a static electricity removing device is further installed at the feed port, and a fan is further installed in the box body. The film can be wound on one of the material rolls through the driving device, winding, taking and placing work can be completed on the rotating disc through the rotating disc, the structure is simple, the matching degree is higher, in addition, static electricity on the film can be effectively eliminated through the static electricity eliminating device, the dust adsorption phenomenon of the film is reduced, and the cleanliness is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to an automatic roll changing device and a film blowing device equipped with the same. Background Technique

[0002] A film blowing machine melts plastic particles and then blows them into films. There are many types of film blowing machines, such as PE, POF, PVC, etc. A plastic film blowing machine is a mechanical device specifically for producing plastic films. The produced plastic films are widely used in the inner and outer packaging of food, planting, clothing, textiles, aquaculture, daily necessities, etc.

[0003] However, when the existing film blowing machine changes rolls, it needs to be replaced manually, that is, the wound material roll is removed and the material roll to be wound is replaced. The operation is relatively troublesome, which not only increases the labor intensity of workers but also reduces the production efficiency.

[0004] In addition, as disclosed in the patent with the patent number CN 213770714 U: "An automatic roll changing device for a film blowing machine, including a box body. A second electric telescopic rod is fixedly installed on the inner wall of the bottom end of the box body. A mechanical claw is fixedly installed at the top end of the second electric telescopic rod. A material roll is movably connected to the inner wall of the mechanical claw... A cutting knife is fixedly installed at the bottom end of the first electric telescopic rod. A driving device is fixedly installed on the outer wall of the box body."

[0005] However, when the above patent is in use, static electricity is likely to occur when the film passes through the feeding roller. The static electricity will cause the film to be adsorbed on the feeding roller after the cutting knife cuts the film. When the blowing device blows the film, it is difficult for the film to contact the newly replaced material roll, resulting in difficult roll changing; in addition, the static electricity carried on the film is also likely to adsorb dust, resulting in excessive dust on the material roll and poor cleanliness. Content of the Utility Model

[0006] The utility model provides an automatic roll changing device and a film blowing device equipped with the same to solve at least one of the problems raised in the above background technique.

[0007] To solve the above technical problems, the utility model discloses an automatic roll changing device, which is characterized in that it includes a box body. An inlet and an outlet for the roll are arranged on the box body. A roll inlet funnel is also arranged on the box body. A turntable is arranged inside the box body. A number of auxiliary columns are arranged on the turntable. The auxiliary columns cooperate with the material roll. A driving device is arranged on the front side of the box body and is used to drive the auxiliary columns to rotate. A cutting knife is also arranged inside the box body. An outlet table is arranged at the outlet for the roll. An electrostatic eliminating device is installed at the inlet. A blower is also installed inside the box body.

[0008] Preferably, a first motor is fixedly arranged at the rear side of the box body. The front output end of the first motor is fixedly connected with a rotating rod, which rotates forward and extends into the box body. A turntable is fixedly connected to the front side of the rotating rod.

[0009] Preferably, three linear motors are rotatably arranged at the rear side of the turntable. The front output end of the linear motor is connected with an auxiliary column, which slidably penetrates through the turntable. A disc is arranged at the other end of the auxiliary column.

[0010] Preferably, the three linear motors are arranged in a "pin" shape; an opening and closing door is arranged at the lower left end of the feeding funnel.

[0011] Preferably, a first feeding roller and a second feeding roller are further arranged in the box body. Both the first feeding roller and the second feeding roller are installed at the feeding port, and the film bypasses the first feeding roller and the second feeding roller.

[0012] Preferably, a connecting rod is fixedly arranged on the front side wall of the box body. The other end of the connecting rod is fixedly connected with a linear driving member, and a cutting knife is installed at the lower output end of the linear driving member.

[0013] Preferably, the driving device includes two symmetrically arranged electric push rods up and down. An installation plate is fixedly arranged at the front side of the electric push rod. A second motor is arranged at the rear side of the installation plate. The rear output end of the second motor is fixedly connected with a rotating shaft, which slidably penetrates through the box body. A baffle is fixedly connected to the other end of the rotating shaft, and an inner supporting clamp is arranged on the baffle.

[0014] Preferably, the inner supporting clamp cooperates with the lower left material roll.

[0015] Preferably, the static elimination device includes a water tank, which is fixedly arranged on the box body. The lower side of the water tank is connected with a spray funnel in a penetrating manner. A conductive plate is installed on the spray funnel, and the conductive plate is in contact with the film.

[0016] Preferably, a film blowing device includes the automatic roll changing device as described above.

[0017] Compared with the prior art, the present utility model provides an automatic roll changing device and a film blowing device equipped with the same. Through the driving device, the film can be wound around one of the material rolls. By setting the turntable, the winding, taking and placing operations can be respectively completed on the turntable. The structure is simple, the cooperation degree is higher, time and labor are saved, the labor intensity of workers is effectively reduced, and the production efficiency is improved; in addition, by setting the static elimination device, the static electricity on the film can be effectively eliminated, the adsorption between the film and the feeding roller can be reduced, and at the same time, the adsorption of the film to dust can also be reduced, and the cleanliness is higher. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural view of the present utility model;

[0020] Figure 2 of the present utility model Figure 1 enlarged view of part A;

[0021] Figure 3 is a partial structural sectional view of the box body of the present utility model.

[0022] In the figure: 1. box body; 2. turntable; 3. incoming coil funnel; 4. linear driving member; 5. feeding roller one; 6. feeding roller two; 7. fan; 8. outgoing coil roller; 9. support column; 10. outgoing coil table; 11. cutting knife; 12. spray funnel; 13. conductive plate; 14. water tank; 15. linear motor; 16. rotating rod; 17. auxiliary column; 18. motor one; 19. electric push rod; 20.; 21. mounting plate; 22. motor two; 23. rotating shaft; 24. inner support fixture; 25. baffle. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Example 1

[0027] An embodiment of the present utility model provides an automatic roll changing device, which is characterized in that it includes a box body 1, a feeding port and a roll outlet are arranged on the box body 1, a roll inlet funnel 3 is further arranged on the box body 1, a turntable 2 is arranged in the box body 1, a number of auxiliary columns 17 are arranged on the turntable 2, the auxiliary columns 17 cooperate with the material rolls, a driving device is further arranged on the front side of the box body 1, the driving device is used to drive the auxiliary columns 17 to rotate, a cutting knife 11 is arranged in the box body 1, a roll outlet table 10 is arranged at the roll outlet, an electrostatic removing device is installed at the feeding port, and a blower 7 is installed in the box body 1.

[0028] Wherein, an adsorption adhesive is arranged on the outer wall of the material roll.

[0029] Wherein, a number of support columns 9 are further arranged at the lower end of the box body 1.

[0030] Wherein, a number of roll outlet rollers 8 are further arranged on the roll outlet table 10.

[0031] The working principle and beneficial effects of the above technical solution are as follows: First, a number of material rolls are placed into the roll inlet funnel 3, the auxiliary column 17 at the uppermost end on the turntable 2 contacts and takes out the lowermost material roll in the roll inlet funnel 3, then the turntable 2 rotates counterclockwise, driving the material roll to rotate counterclockwise, then the feeding port starts to feed the film, which is wound around the material roll. After winding is completed, the cutting knife 11 cuts the film, then the turntable 2 rotates counterclockwise, rotating the wound material roll above the roll outlet table 10, and the auxiliary column 17 puts down the wound material roll. Under the action of gravity, the wound material roll flows out from the roll outlet through a number of roll outlet rollers 8; after the cutting knife 11 cuts, the blower 7 is started, and the blower will blow the film, so that the film contacts the next material roll and adheres to the outer wall of the material roll through the adsorption adhesive; during the process of the film entering, the electrostatic removing device removes the static electricity on the film.

[0032] The film can be wound around one of the material rolls through the driving device, and by setting the turntable 2, the work of winding, taking and placing can be completed on the turntable 2 respectively. The structure is simple, the cooperation degree is higher, it saves time and effort, effectively reduces the labor intensity of workers, and improves the production efficiency; in addition, by setting the electrostatic removing device, the static electricity on the film can be effectively eliminated, the adsorption between the film and the feeding roller can be reduced, and at the same time, the adsorption phenomenon of the film to dust can also be reduced, and the cleanliness is higher.

[0033] Example 2

[0034] On the basis of the above Example 1, such as Figure 1 、 3As shown, a first motor 18 is fixedly arranged at the rear side of the box body 1. The front output end of the first motor 18 is fixedly connected to a rotating rod 16. The rotating rod 16 extends forward and rotates into the box body 1. The front side of the rotating rod 16 is fixedly connected to a turntable 2.

[0035] Among them, preferably, three linear motors 15 are rotatably arranged at the rear side of the turntable 2. The front output end of the linear motor 15 is connected to an auxiliary column 17. The auxiliary column 17 slidably penetrates through the turntable 2. The other end of the auxiliary column 17 is provided with a disc 20.

[0036] Among them, preferably, the three linear motors 15 are arranged in a "pin" shape; a opening and closing door is arranged at the lower left side of the feeding funnel 3.

[0037] The working principle and beneficial effects of the above technical solution are as follows: Start the first motor 18. The first motor 18 drives the rotating rod 16 to rotate. The rotating rod 16 drives the turntable 2 to rotate; the uppermost auxiliary column 17 on the turntable 2 rotates to the rear side of the feeding funnel 3, and then start the uppermost linear motor 15, so that the upper disc 20 and the auxiliary column 17 enter the material roll. Then the turntable 2 rotates, and the uppermost auxiliary column 17 rotates to the lower left to wind the thin film. After winding, the auxiliary column 17 initially located at the uppermost end will rotate to the lower right, and then the linear motor 15 retracts, so that the disc 20 and the auxiliary column 17 leave the material roll. Under the action of gravity, the wound material roll is released; that is, the three auxiliary columns 17 can realize the functions of taking the material roll, winding the material roll and releasing the material roll. The structural cooperation degree of the whole device is higher and the intelligence is stronger.

[0038] Embodiment 3

[0039] On the basis of the above Embodiments 1-2, as Figure 1 shown, a first feeding roller 5 and a second feeding roller 6 are further arranged in the box body 1. The first feeding roller 5 and the second feeding roller 6 are both installed at the feeding port. The thin film bypasses the first feeding roller 5 and the second feeding roller 6.

[0040] Among them, preferably, a connecting rod is fixedly arranged on the front side wall of the box body 1. The other end of the connecting rod is fixedly connected to a linear driving member 4. The lower output end of the linear driving member 4 is installed with a cutting knife 11.

[0041] Among them, the cutting knife 11 is in the same vertical plane as the leftmost end of the wound material roll.

[0042] The working principle and beneficial effects of the above technical solution are as follows: The film bypasses the first feeding roller 5 and the second feeding roller 6, flattens the film as much as possible, and then winds it around the coil. When the winding is completed (the winding length and thickness are determined by those skilled in the art themselves or can be set in advance), the linear driving member 4 is started. The linear driving member 4 drives the cutting knife 11 to cut the film. After the film is cut, the turntable 2 rotates to rotate the wound coil above the coil outlet table 10. At this time, the blower 7 is started simultaneously. The blower 7 blows the film at the splitting part, so that the film is in a suspended state and does not droop under the action of gravity. When the next coil rotates into place, the blowing stops, and the film will fall onto the coil under the action of gravity and adhere to the coil; through the cooperation of the blower 7 and the film, the adhesion between the coil and the film can be effectively completed without manual replacement, the structural cooperation is higher, and the setting of the first feeding roller 5 and the second feeding roller 6 can flatten the coil as much as possible, making the winding more convenient.

[0043] Embodiment 4

[0044] On the basis of the above Embodiments 1-3, as Figure 1 、 3 shown, the driving device includes two symmetrically arranged electric push rods 19 up and down. An installation plate 21 is fixedly arranged on the front side of the electric push rod 19. A second motor 22 is arranged on the rear side of the installation plate 21. The rear output end of the second motor 22 is fixedly connected to a rotating shaft 23. The rotating shaft 23 slidably penetrates through the box body 1. The other end of the rotating shaft 23 is fixedly connected to a baffle 25. An inner support clamp 24 is arranged on the baffle 25.

[0045] Among them, preferably, the inner support clamp 24 cooperates with the coil on the lower left side.

[0046] Among them, the inner support clamp 24 can adopt common inner support clamps on the market;

[0047] The working principle and beneficial effects of the above technical solution are as follows: When winding is required, the electric push rod 19 is started. The electric push rod 19 drives the installation plate 21 to move backward. The installation plate 21 drives the second motor 22 to move backward. The second motor 22 drives the rotating shaft 23, the baffle 25 and the inner support clamp 24 to move backward. The inner support clamp 24 will insert into the coil, and then the second motor 22 is started. The rotating shaft 23 drives the coil to rotate, thus completing the winding of the film; after the winding is completed, the inner support clamp 24 is released, and the electric push rod 19 is started in the reverse direction to move the inner support clamp 24 out of the coil; by clamping the coil with the inner support clamp 24 and inserting the auxiliary column 17 into the coil, the rotation of the coil is more stable, the cooperation of the whole device is higher, the practicability is stronger, and the winding work of the coil can be completed quickly.

[0048] Embodiment 5

[0049] On the basis of the above Embodiments 1-4, asFigure 1-2 As shown, the static eliminator device includes a water tank 14, which is fixedly arranged on the box body 1. The lower side of the water tank 14 is connected to a spray funnel 12 in a penetrating manner. A conductive plate 13 is installed on the spray funnel 12, and the conductive plate 13 is in contact with the film.

[0050] The working principle and beneficial effects of the above technical solution are as follows: When a film passes by, the conductive plate 13 will conduct the static electricity on the film. At the same time, the spray funnel 12 can also spray water on the film, further reducing the possibility of static electricity on the film, reducing the adsorption of dust by the film, having a higher cleanliness and stronger practicability.

[0051] In addition, the present utility model also provides a film blowing device (not shown in the figure), which includes the above automatic roll changing device.

[0052] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automatic roll changing device, characterized in that, It includes a box body (1) with a feed inlet and a roll outlet provided thereon. An inlet funnel (3) is also provided on the box body (1). A turntable (2) is arranged inside the box body (1). A number of auxiliary columns (17) are provided on the turntable (2), and the auxiliary columns (17) cooperate with the material rolls. A driving device is also provided on the front side of the box body (1) for driving the auxiliary columns (17) to rotate. A cutting knife (11) is arranged inside the box body (1), a roll outlet table (10) is provided at the roll outlet, an electrostatic eliminator is installed at the feed inlet, and a fan (7) is installed inside the box body (1).

2. The automatic roll changing device according to claim 1, wherein A first motor (18) is fixedly arranged at the rear side of the box body (1). The front output end of the first motor (18) is fixedly connected to a rotating rod (16), and the rotating rod (16) extends forward and rotates into the box body (1). The front side of the rotating rod (16) is fixedly connected to the turntable (2).

3. The automatic roll changing device according to claim 2, wherein, Three linear motors (15) are rotatably arranged at the rear side of the turntable (2). The front output ends of the linear motors (15) are connected to auxiliary columns (17). The auxiliary columns (17) slidably penetrate the turntable (2), and a disc (20) is arranged at the other end of the auxiliary columns (17).

4. The automatic roll changing device according to claim 3, characterized in that, The three linear motors (15) are arranged in a "pin" shape; a switch door is arranged at the lower left end of the inlet funnel (3).

5. The automatic roll changing device according to claim 1, wherein, A first feeding roller (5) and a second feeding roller (6) are also arranged inside the box body (1). The first feeding roller (5) and the second feeding roller (6) are both installed at the feed inlet, and the film bypasses the first feeding roller (5) and the second feeding roller (6).

6. The automatic roll changing device according to claim 5, wherein, A connecting rod is fixedly arranged on the front side wall of the box body (1), and the other end of the connecting rod is fixedly connected to a linear driving member (4). A cutting knife (11) is installed at the lower output end of the linear driving member (4).

7. The automatic roll changing device according to claim 3, wherein The driving device includes two symmetrically arranged electric push rods (19) up and down. An installation plate (21) is fixedly arranged at the front side of the electric push rod (19). A second motor (22) is arranged at the rear side of the installation plate (21). The rear output end of the second motor (22) is fixedly connected to a rotating shaft (23). The rotating shaft (23) slidably penetrates the box body (1), and a baffle (25) is fixedly connected to the other end of the rotating shaft (23). An inner support clamp (24) is arranged on the baffle (25).

8. The automatic roll changing device according to claim 3, characterized in that, The inner support clamp (24) cooperates with the material roll at the lower left side.

9. The automatic roll changing device according to claim 1, characterized in that The electrostatic eliminator includes a water tank (14) fixedly arranged on the box body (1). The lower side of the water tank (14) is connected to a spray funnel (12) in a through manner. A conductive plate (13) is installed on the spray funnel (12), and the conductive plate (13) is in contact with the film.

10. A blown film device, characterized in that, It includes the automatic roll changing device according to any one of claims 1-7.

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