Multi-layer film automatic roll dividing equipment

Abstract

The utility model relates to a multi-layer film automatic roll dividing device which comprises a roll collecting and replacing device, a roll collecting and replacing device, a roll collecting and replacing device, a roll collecting and replacing device and a roll collecting and replacing device, the roll collecting and replacing device comprises a rotatable roller and a pair of clamping assemblies installed on the roller, the clamping assemblies comprise a first clamping rod and a second clamping rod, and the upper film pressing assembly is provided with an upper pressing roller which presses a film from the position above the clamping assemblies; the lower film pressing assembly is provided with a lower pressing roller, and the lower pressing roller presses the film from the position below the clamping assembly; the cutting device comprises a cutting driving part and a cutter driven by the cutting driving part, the cutter cuts off the thin film after the upper film pressing assembly and the lower film pressing assembly press the thin film, and when the positions of the pair of clamping assemblies are exchanged, the paper tube moves and makes contact with the thin film; at the moment, the upper film pressing assembly and the lower film pressing assembly respectively drive the upper pressing roller and the lower pressing roller to press the film to enlarge the contact area with the paper tube, the cutter cuts off the film, the film starts to wind a new paper tube, automatic film rolling is achieved, and meanwhile the multi-layer winding and roll changing device can meet the requirement for roll dividing of different specifications.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic film winding, and particularly relates to a multi-layer film automatic winding device. BACKGROUND

[0002] The packaging film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, and is widely used in food, medicine, chemical industry and other fields. The film is generally wound by winding equipment in the processing process to facilitate subsequent storage and use.

[0003] According to the patent CN219279064U, a film winding device is disclosed, which comprises a workbench and a film to be wound. The workbench top is sequentially provided with a large film winding assembly, a traction guide assembly and a winding assembly from left to right. The device further comprises an adjusting assembly arranged on the top of the workbench for adjusting the tightness of the film and a cutting assembly for cutting the film. The adjusting assembly is arranged between the large film winding assembly and the traction guide assembly, and the cutting assembly is arranged between the traction guide assembly and the winding assembly, so as to realize the winding of the film. However, in actual use, when the amount of wound film is small, frequent winding is required, or when the width of the film is narrow, the film needs to be split into different rolls. The device cannot meet such needs and cannot be automatically processed.

[0004] Therefore, it is necessary to develop a multi-layer film automatic winding device to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a multi-layer film automatic winding device with high automation degree and meeting various winding requirements.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multi-layer film automatic winding device, comprising:

[0007] The roll changing device comprises a rotatable roller and a pair of clamping assemblies installed on the roller. The clamping assemblies comprise first and second clamping rods, which move relative to or opposite to each other.

[0008] The upper film pressing assembly is provided with an upper pressing roller, which presses the film from above the clamping assembly.

[0009] The lower film pressing assembly is provided with a lower pressing roller, which presses the film from below the clamping assembly.

[0010] The cutting device comprises a cutting drive and a cutting knife driven by the cutting drive. After the film is pressed by the upper film pressing assembly and the lower film pressing assembly, the cutting knife cuts the film.

[0011] Further, the upper pressing film assembly comprises an upper pressing film driving cylinder, an upper pressing film driving rod connected to the upper pressing film driving cylinder, and an upper pressing roller installed at the end of the upper pressing film driving rod, and the upper pressing film driving cylinder drives the upper pressing roller to approach or move away from the clamping assembly through the upper pressing film driving rod.

[0012] Further, the lower pressing film assembly comprises a lower pressing film driving cylinder, a lower pressing film driving rod connected to the lower pressing film driving cylinder, and a lower pressing roller installed at the end of the lower pressing film driving rod, and the lower pressing film driving cylinder drives the lower pressing roller to approach or move away from the clamping assembly through the lower pressing film driving rod.

[0013] Further, the collecting and changing roll device is fixedly installed with an air jet device on one side, the air jet device comprises an air pipe and air jet holes arranged on the air pipe, and the air jet holes are aligned with the clamping assembly.

[0014] Further, a discharging platform is arranged below the roller, the discharging platform is arranged obliquely, one end of the discharging platform extends into the lower part of the collecting and changing roll device, the other end extends outward, the height of the one end extending into the lower part of the collecting and changing roll device is greater than the height of the other end.

[0015] Further, a paper feeding cylinder device is arranged above the discharging platform, the paper feeding cylinder device comprises a receiving part, and the receiving part is provided with an opening and closing part and a hook at the end.

[0016] Further, the opening and closing part comprises an opening and closing control cylinder and a baffle pushed by the opening and closing control cylinder, and the opening and closing control cylinder drives the baffle to enter or exit the front end of the receiving part.

[0017] Further, the number of the collecting and changing roll devices is one pair, and the collecting and changing roll devices are arranged above and below, and the outer sides of the collecting and changing roll devices arranged above and below are both provided with a tensioning part, a cutting device, an upper pressing film assembly and a lower pressing film assembly.

[0018] Further, the outer side of the collecting and changing roll device is provided with a tensioning part, the tensioning part comprises an inner side tensioning shaft and an outer side tensioning shaft, the inner side tensioning shaft and the outer side tensioning shaft are arranged oppositely, and the tensioning part comprises a pushing cylinder, and the pushing cylinder drives the inner side tensioning shaft to approach or move away from the outer side tensioning shaft.

[0019] Further, the outer side of the collecting and changing roll device is provided with a material dividing device, the material dividing device comprises a support frame, a dividing cutter and a guide piece installed on the support frame, the dividing cutter divides the whole film, and the guide piece changes the direction of the film.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is a multi-layer film automatic slitting device, which has the characteristics of high automation and meeting various slitting needs. By exchanging the positions of a pair of clamping components, the paper tube moves and contacts the film. At this time, the upper pressure film assembly and the lower pressure film assembly drive the upper pressure roller and the lower pressure roller respectively to press the film to expand the contact area with the paper tube. The cutting drive drives the cutter to move towards the clamping assembly to cut the film. The film begins to wrap around a new paper tube, realizing automatic film winding. At the same time, the multi-layer winding and changing device can meet the slitting of different specifications. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 This is a side cross-sectional view of an automatic multilayer film rewinding device according to the present invention.

[0023] Figure 2 for Figure 1 A side cross-sectional view of another embodiment of the multilayer film automatic unwinding equipment shown;

[0024] Figure 3 for Figure 2 A partial top view of the multilayer film automatic unwinding equipment shown.

[0025] Figure 4 for Figure 1 A side cross-sectional view of the material distribution device in the automatic multilayer film slitting equipment shown.

[0026] Figure 5 for Figure 4 A top view of a partial structure of the material distribution device in the automatic multilayer film slitting equipment shown.

[0027] In the figure: 1, rack; 2, tensioning part; 3, roll collecting and changing device; 4, cutting device; 21, inner tensioning shaft; 22, outer tensioning shaft; 23, pushing cylinder; 31, driving motor; 32, transmission gear; 33, roller; 34, clamping assembly; 331, passive gear; 332, auxiliary roller; 341, clamping driving piece; 342, first clamping rod; 343, second clamping rod; 5, upper pressing film assembly; 51, upper pressing film driving cylinder; 52, upper pressing film driving rod; 53, upper pressing roller; 6, lower pressing film assembly; 61, lower pressing film driving cylinder; 62, lower pressing film driving rod; 63, lower pressing roller; 7, air jet device; 71, air pipe; 72, air jet hole; 41, cutting driving piece; 42, cutting knife; 8, discharge platform; 9, paper feeding cylinder device; 91, accommodating part; 92, opening and closing part; 93, hook; 921, opening and closing control cylinder; 922, baffle; 10, material distributing device; 101, support frame; 102, dividing cutter; 103, guide piece; 104, dividing driving piece. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1 to 5 The utility model discloses a kind of multi-layer film automatic roll dividing equipment, it includes rack 1, be installed on rack 1 tensioning part 2, be located in tensioning part 2 one side roll collecting and changing device 3, be located between tensioning part 2 and roll collecting and changing device 3 cutting device 4.

[0030] Please refer to Figures 1 to 2 Rack 1 is used to support tensioning part 2, roll collecting and changing device 3 and cutting device 4, so that tensioning part 2, roll collecting and changing device 3 and cutting device 4 maintain horizontal state.

[0031] Please refer to Figures 1 to 2 Tensioning part 2 includes inner tensioning shaft 21 and outer tensioning shaft 22, the both ends of outer tensioning shaft 22 are fixedly installed on rack 1, the both ends of inner tensioning shaft 21 are movably installed on rack 1, tensioning part 2 includes pushing cylinder 23, pushing cylinder 23 drives inner tensioning shaft 21 to approach outer tensioning shaft 22 or to be away from outer tensioning shaft 22, changes the interval of inner tensioning shaft 21 and outer tensioning shaft 22, preferably, the number of inner tensioning shaft 21 and outer tensioning shaft 22 changes according to demand.

[0032] The roll exchanging device 3 comprises a driving motor 31, a transmission gear 32 connected with the driving motor 31, a roller 33 driven by the driving motor 31 and the transmission gear 32, a pair of clamping assemblies 34 installed on the roller 33, the driving motor 31 is fixedly installed on the frame 1, the driving motor 31 drives the transmission gear 32 to rotate, the transmission gear 32 is located at one side of the roller 33, the roller 33 is provided with a driven gear 331, the transmission gear 32 is in gear engagement with the driven gear 331, the outer side of the roller 33 is provided with an auxiliary roller 332, one end of the auxiliary roller 332 is fixedly installed on the frame 1, and the other end abuts against the outer surface of the roller 33.

[0033] The pair of clamping assemblies 34 are identical in structure, and are fixedly installed on the roller 33 and rotate synchronously with the roller 33, the clamping assembly 34 comprises a clamping driving member 341, a first clamping rod 342 driven by the clamping driving member 341, and a second clamping rod 343 oppositely arranged with the first clamping rod 342, the clamping driving member 341 is a certain air cylinder, the first clamping rod 342 is driven by the clamping driving member 341 to approach or move away from the second clamping rod 343, so as to change the distance between the first clamping rod 342 and the second clamping rod 343, and clamp or release the paper tube.

[0034] The upper side of the roller 33 is provided with an upper film pressing assembly 5, the upper film pressing assembly 5 comprises an upper film pressing driving air cylinder 51, an upper film pressing driving rod 52 connected with the upper film pressing driving air cylinder 51, and an upper pressing roller 53 installed at the end of the upper film pressing driving rod 52, the upper film pressing driving air cylinder 51 drives the upper pressing roller 53 to approach or move away from the clamping assembly 34 through the upper film pressing driving rod 52.

[0035] The lower side of the roller 33 is provided with a lower film pressing assembly 6, the lower film pressing assembly 6 comprises a lower film pressing driving air cylinder 61, a lower film pressing driving rod 62 connected with the lower film pressing driving air cylinder 61, and a lower pressing roller 63 installed at the end of the lower film pressing driving rod 62, the lower film pressing driving air cylinder 61 drives the lower pressing roller 63 to approach or move away from the clamping assembly 34 through the lower film pressing driving rod 62.

[0036] The upper film pressing assembly 5 and the lower film pressing assembly 6 are respectively located at the upper and lower sides of the clamping assembly 34.

[0037] Please refer to Figures 1 to 3 The frame 1 is fixedly installed with an air jet device 7, the air jet device 7 comprises an air pipe 71 and air jet holes 72 arranged on the air pipe 71, the air jet holes 72 are aligned with the clamping assembly 34.

[0038] The cutting device 4 comprises a cutting driving member 41 and a cutting knife 42 driven by the cutting driving member 41, the cutting driving member 41 is located at one side of the roller 33, and drives the cutting knife 42 to move towards or away from the clamping assembly 34.

[0039] The lower side of the roller 33 is provided with a discharging platform 8, which is arranged in an inclined manner, with one end extending into the lower side of the rewinding device 3 and the other end extending outward, and the height of the end extending into the lower side of the rewinding device 3 is greater than that of the other end.

[0040] The upper side of the discharging platform 8 is provided with a paper tube feeding device 9, which comprises a receiving part 91, an opening and closing part 92 and a hook 93 arranged at the end of the receiving part 91, the inside of the receiving part 91 is used for receiving a plurality of paper tubes, the receiving part 91 is arranged in an inclined manner, with one end located on one side of the roller 33 and the other end extending outward at an angle, and the height of the end located on one side of the roller 33 is less than that of the other end, the opening and closing part 92 comprises an opening and closing control cylinder 921 and a baffle 922 pushed by the opening and closing control cylinder 921, the opening and closing control cylinder 921 drives the baffle 922 to enter or exit the front end of the receiving part 91, and the hook 93 is located below the baffle 922 and is used to bear the paper tubes falling from the receiving part 91.

[0041] In another embodiment, the number of rewinding devices 3 is one pair, which are arranged in an up-down manner, and the outer sides of the rewinding devices 3 arranged in an up-down manner are each provided with the tensioning part 2, the cutting device 4, the upper and lower film pressing assemblies 5 and 6, and the air jet device 7, the discharging platform 8, and the paper tube feeding device 9.

[0042] Please refer to Figure 1 and Figure 4 In yet another embodiment, the outer side of the tensioning part 2 is provided with a distributing device 10, which comprises a support frame 101, a dividing cutter 102 and a guide 103 mounted on the support frame 101, the support frame 101 is used to support the dividing cutter 102 and the guide 103 so that the dividing cutter 102 and the guide 103 are in a horizontal state, the number of the dividing cutter 102 is changed according to requirements, the upper side of the dividing cutter 102 is provided with a dividing driving part 104, the dividing driving part 104 pushes the dividing cutter 102 to move to divide the whole film, and the guide 103 is located on one side of the dividing cutter 102, in this embodiment, the guide 103 is a roller arranged in an inclined manner, with an inclination angle of 45°, and the guide 103 is used to change the direction of the film.

[0043] The utility model discloses a kind of multi-layer film automatic roll dividing equipment, with the characteristics of high degree of automation, satisfy a variety of roll dividing needs, by a pair of clamping assembly exchange position, paper tube moves and contacts film, at this time, upper film pressing assembly and lower film pressing assembly respectively drive upper pressure roller and lower pressure roller to press film to expand the contact area with paper tube, cutting drive piece drives cutting knife 42 to move to clamping assembly 34 and cut film, simultaneously, gas is sprayed from air jet hole 72 by gas pipe 71, so that film enters the gap between paper tube and upper pressure roller 53, film starts to wind new paper tube, paper tube that has been wound is dropped to discharge platform 8, open-close control cylinder 921 drives baffle 922 to exit the front end of housing part 91, new paper tube drops to hook 93, moves between a pair of clamping assembly 34, a pair of clamping assembly 34 clamps new paper tube.

[0044] The utility model discloses a kind of multi-layer film automatic roll dividing equipment, with the characteristics of high degree of automation, satisfy a variety of roll dividing needs, by a pair of clamping assembly exchange position, paper tube moves and contacts film, at this time, upper film pressing assembly and lower film pressing assembly respectively drive upper pressure roller and lower pressure roller to press film to expand the contact area with paper tube, cutting drive piece drives cutting knife 42 to move to clamping assembly 34 and cut film, simultaneously, gas is sprayed from air jet hole 72 by gas pipe 71, so that film enters the gap between paper tube and upper pressure roller 53, film starts to wind new paper tube, paper tube that has been wound is dropped to discharge platform 8, open-close control cylinder 921 drives baffle 922 to exit the front end of housing part 91, new paper tube drops to hook 93, moves between a pair of clamping assembly 34, a pair of clamping assembly 34 clamps new paper tube.

[0045] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme of the utility model and its utility model conception, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A multi-layer film automatic roll dividing apparatus, characterized by, It includes: The roll device (3) includes a rotatable roller (33), a pair of clamping assemblies (34) mounted on the roller (33), the clamping assemblies (34) including a first clamping rod (342) and a second clamping rod (343), the first clamping rod (342) and the second clamping rod (343) moving oppositely or reversely; The upper film pressing assembly (5) is provided with an upper pressing roller (53) pressing the film from above the clamping assembly (34); The lower film pressing assembly (6) is provided with a lower pressing roller (63) pressing the film from below the clamping assembly (34); The cutting device (4) includes a cutting drive (41), a cutting knife (42) driven by the cutting drive (41), the cutting knife (42) cutting the film after the upper film pressing assembly (5) and the lower film pressing assembly (6) pressing the film.

2. The multi-layer film automatic unwinding apparatus according to claim 1, wherein The upper film pressing assembly (5) includes an upper film pressing drive cylinder (51), an upper film pressing drive rod (52) connected to the upper film pressing drive cylinder (51), an upper pressing roller (53) mounted at the end of the upper film pressing drive rod (52), and the upper film pressing drive cylinder (51) drives the upper pressing roller (53) to move closer to or away from the clamping assembly (34) through the upper film pressing drive rod (52).

3. The multi-layer film automatic unwinding apparatus according to claim 1, wherein The lower film pressing assembly (6) includes a lower film pressing drive cylinder (61), a lower film pressing drive rod (62) connected to the lower film pressing drive cylinder (61), and a lower pressing roller (63) mounted at the end of the lower film pressing drive rod (62), and the lower film pressing drive cylinder (61) drives the lower pressing roller (63) to move closer to or away from the clamping assembly (34) through the lower film pressing drive rod (62).

4. The multi-layer film automatic unwinding apparatus according to claim 1, wherein One side of the roll device (3) is fixedly provided with an air jet device (7), the air jet device (7) including an air pipe (71) and air jet holes (72) provided on the air pipe (71), the air jet holes (72) being aligned with the clamping assemblies (34).

5. The multi-layer film automatic unwinding apparatus according to claim 1, wherein A discharge platform (8) is arranged below the roller (33), the discharge platform (8) being arranged obliquely, one end of the discharge platform (8) extending into the lower part of the roll device (3), the other end extending outward, the height of the one end extending into the lower part of the roll device (3) being greater than the height of the other end.

6. The multi-layer film automatic unwinding apparatus according to claim 5, wherein A paper feeding cylinder device (9) is arranged above the discharge platform (8), the paper feeding cylinder device (9) including a receiving part (91), the receiving part (91) being provided at the end with an opening and closing part (92) and a hook (93).

7. The multi-layer film automatic unwinding apparatus according to claim 6, wherein The opening and closing part (92) includes an opening and closing control cylinder (921) and a baffle (922) pushed by the opening and closing control cylinder (921), the opening and closing control cylinder (921) driving the baffle (922) to enter or exit the front end of the receiving part (91).

8. The multi-layer film automatic unwinding apparatus according to claim 1, wherein The number of the roll device (3) is a pair, arranged above and below, and the outer sides of the roll devices (3) arranged above and below are provided with a tensioning part (2), a cutting device (4), an upper film pressing assembly (5), and a lower film pressing assembly (6).

9. The multi-layer film automatic unwinding apparatus according to claim 1, wherein, The collecting and changing roll device (3) is provided with a tensioning part (2) outside, the tensioning part (2) comprises an inside tensioning shaft (21) and an outside tensioning shaft (22), the inside tensioning shaft (21) and the outside tensioning shaft (22) are oppositely arranged, the tensioning part (2) comprises a pushing cylinder (23), the pushing cylinder (23) drives the inside tensioning shaft (21) to approach or move away from the outside tensioning shaft (22).

10. The multi-layer film automatic unwinding apparatus according to claim 1, wherein The outside of the collecting and changing roll device (3) is provided with a material distributing device (10), the material distributing device (10) comprises a supporting frame (101), a dividing cutter (102) and a guide (103) mounted on the supporting frame (101), the dividing cutter (102) divides the whole film, and the guide (103) changes the direction of the film.

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