Plastic film stretching device

Abstract

The utility model relates to the technical field of plastic film stretching equipment, in particular to a plastic film stretching device, which is convenient to adjust the extrusion thickness and improve the applicability of a machine by arranging an extrusion device, and is convenient for workers to place raw materials and improve the usability of the machine by opening the extrusion position during feeding by arranging the extrusion device. Comprising a body; the machine comprises a machine body and further comprises an extrusion device, a winding device, a power device, a fixing device and an auxiliary discharging device, the extrusion device, the winding device and the power device are all installed on the machine body, the fixing device is installed on the power device, and the auxiliary discharging device is installed on the fixing device; the machine body provides support, the extrusion device performs thickness-adjustable extrusion on a plastic sheet, the winding device, the power device and the fixing device are matched to perform stretching forming, winding and conveying on a plastic film, and the auxiliary discharging device facilitates discharging of the wound plastic film.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic film stretching equipment, in particular to a plastic film stretching device. BACKGROUND

[0002] Plastic film is a common packaging material, which is usually produced by stretching plastic sheet.

[0003] The existing plastic film stretching equipment, such as a Chinese utility model patent for a kind of cutting and stretching device for producing plastic film for container bag, represented by the authorized announcement No. CN222100220U, mainly includes winding mechanism, stretching mechanism and cutting mechanism. The winding mechanism winds the plastic film, the stretching mechanism stretches the plastic film, and the cutting mechanism cuts the plastic film.

[0004] However, the existing technical equipment still has the following problems when in use: the existing machine stretches the film by clamping the film with two rollers, the stretching thickness is fixed, the machine has poor applicability, and the existing machine is not convenient to load, and the machine has poor usability. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a plastic film stretching device by setting the extrusion device, which is convenient to adjust the extrusion thickness, improves the machine applicability, and by setting the extrusion device, the extrusion position is opened when loading, which is convenient for workers to place raw materials, and improves the machine usability.

[0006] The utility model relates to a kind of plastic film stretching device, including body;Further including extrusion device, winding device, power device, fixing device and auxiliary discharging device, extrusion device, winding device and power device are all installed on body, fixing device is installed on power device, auxiliary discharging device is installed on fixing device;Body provides support, extrusion device is adjustable thickness extrusion to plastic sheet, winding device, power device and fixing device cooperate and stretch forming, winding and transport to plastic film, auxiliary discharging device is convenient to discharge to the plastic film after winding.

[0007] Preferably, the body includes a plurality of support seats, a bottom plate, a bracket one, two brackets two, a bracket three and a bracket four, the bottom plate is installed at the top end of the plurality of support seats, the bracket one, the two brackets two, the bracket three and the bracket four are all installed at the top end of the bottom plate; support is provided.

[0008] Preferably, the extruding device comprises a rotating damper, a bearing roller, two lower pressing rollers, two hydraulic cylinders, two brackets five and an upper pressing roller, the rotating damper is fixedly installed at the right end of the bracket one, the bearing roller is rotatably installed at the right end of the rotating damper, the two lower pressing rollers are both rotatably installed on the two brackets two, the two hydraulic cylinders are respectively installed on the two brackets two, and the two brackets two are both located between the two hydraulic cylinders, the two brackets five are respectively installed at the top ends of the two hydraulic cylinders, and the upper pressing roller is rotatably installed on the two brackets five; the bearing roller bears the plastic sheet, the rotating damper provides damping to prevent the bearing roller from rotating freely, the hydraulic cylinder provides power to drive the upper pressing roller to move up and down, and the upper pressing roller adjusts the extrusion thickness of the plastic sheet to facilitate the production of plastic films of different specifications.

[0009] Preferably, the winding device comprises a speed reducer one, a motor one and a winding roller, the speed reducer one is fixedly installed at the left end of the bracket three, the motor one is fixedly installed at the left end of the speed reducer one, and the winding roller is rotatably installed at the right end of the bracket three and rotatably connected between the bracket three and the speed reducer one, the motor one provides power to the winding roller through the speed reducer one, and the winding roller is provided with a plurality of fixed grooves; the motor one provides power to drive the winding roller to rotate, and the winding roller rotates to stretch and wind the plastic film.

[0010] Preferably, the power device comprises a motor two, a speed reducer two, a gear one, a gear two, a bracket six, a linear motor, a bracket seven, a polished rod, a sliding block one and a bracket eight, the motor two is fixedly installed at the top end of the bottom plate, the speed reducer two is fixedly installed at the top end of the motor two, the gear one is rotatably installed at the top end of the speed reducer two and is powered by the motor two through the speed reducer two, the gear two is rotatably installed at the top end of the bracket four and is meshed with the gear one, the bracket six is fixedly installed at the top end of the gear two, the linear motor and the bracket seven are installed at the top end of the bracket six, the polished rod is installed on the bracket seven, the sliding block one is slidably installed on the polished rod, the bracket eight is installed at the top end of the linear motor and the sliding block one, and the bracket eight is provided with a mounting hole; the motor two provides power to drive the gear one to rotate, the gear one drives the gear two to rotate, the linear motor provides power to drive the bracket eight to reciprocate along the sliding block one.

[0011] Preferably, the fixing device comprises a reducer three, a motor three, a support nine, a plurality of sliding blocks two and a plurality of fixed rollers, the reducer three is fixedly installed at the right end of the mounting hole of the support eight, the motor three is fixedly installed at the right end of the reducer three, the support nine is rotatably installed in the mounting hole of the support eight, and the support nine and the reducer three are rotatably connected, the motor three provides power to the support nine through the reducer three, a plurality of slide rails at equal angles are arranged on the support nine, a plurality of sliding blocks two are slidably installed on the plurality of slide rails respectively, a plurality of fixed rollers are rotatably installed at the left ends of the plurality of sliding blocks two respectively, and the plurality of fixed rollers are adapted to the plurality of fixed grooves of the winding roller respectively; the motor three provides power to drive the support nine to rotate, when the support nine rotates forward, the fixed rollers are tightened and rotated, and when the support nine rotates reversely, the fixed rollers are opened and rotated.

[0012] Preferably, the auxiliary discharging device comprises a plurality of sliding blocks three and a baffle, the plurality of sliding blocks three are detachably installed at the left ends of the plurality of fixed rollers respectively, the baffle is installed on the plurality of sliding blocks three, and the baffle is slidably matched with the plurality of sliding blocks three respectively; the baffle limits the plastic film after winding, and the whole roll of plastic film is conveniently taken out.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the extrusion thickness can be adjusted, various specifications of plastic films can be produced, the machine applicability is better, the worker can conveniently place raw materials through the mode of opening the extrusion position during feeding, and the machine usability is better. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axonometric structure schematic view of the utility model;

[0015] Figure 2 is the axonometric structure schematic view of the machine body;

[0016] Figure 3 is the axonometric structure schematic view of the extrusion device;

[0017] Figure 4 is the axonometric structure schematic view of the winding device;

[0018] Figure 5 is the axonometric structure schematic view of the power device;

[0019] Figure 6 is the axonometric structure schematic view of the fixing device;

[0020] Figure 7 is the axonometric structure schematic view of the auxiliary discharging device.

[0021] The attached diagram is labeled as follows: 01. Machine body; 11. Support base; 12. Base plate; 13. Support 1; 14. Support 2; 15. Support 3; 16. Support 4; 02. Extrusion device; 21. Rotation damper; 22. Bearing roller; 23. Lower pressure roller; 24. Hydraulic cylinder; 25. Support 5; 26. Upper pressure roller; 03. Winding device; 31. Reducer 1; 32. Motor 1; 33. Winding roller; 04. Power unit; 41. Motor 2; 42. Reducer 2; 43. Gear 1; 44. Gear 2; 45. Support 6; 46. Linear motor; 47. Support 7; 48. Guide rod; 49. Slider 1; 50. Support 8; 05. Fixing device; 51. Reducer 3; 52. Motor 3; 53. Support 9; 54. Slider 2; 55. Fixed roller; 06. Auxiliary feeding device; 61. Slider 3; 62. Baffle. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] Example 1

[0024] like Figure 1 As shown, the machine includes a body 01; it also includes an extrusion device 02, a winding device 03, a power device 04, a fixing device 05, and an auxiliary feeding device 06. The extrusion device 02, the winding device 03, and the power device 04 are all mounted on the machine body 01, the fixing device 05 is mounted on the power device 04, and the auxiliary feeding device 06 is mounted on the fixing device 05. The machine body 01 provides support. The extrusion device 02 extrudes plastic sheets with adjustable thickness. The winding device 03, the power device 04, and the fixing device 05 work together to stretch, form, wind, and transport the plastic film. The auxiliary feeding device 06 facilitates the feeding of the wound plastic film.

[0025] like Figure 2 As shown, the fuselage 01 includes multiple support seats 11, a base plate 12, a first bracket 13, two second brackets 14, a third bracket 15, and a fourth bracket 16. The base plate 12 is installed on the top of the multiple support seats 11, and the first bracket 13, the two second brackets 14, the third bracket 15, and the fourth bracket 16 are all installed on the top of the base plate 12.

[0026] like Figure 3As shown in the figure, the extrusion device 02 includes a rotation damper 21, a bearing roller 22, two lower pressing rollers 23, two hydraulic cylinders 24, two brackets five 25 and an upper pressing roller 26, the rotation damper 21 is fixedly installed at the right end of the bracket one 13, the bearing roller 22 is rotatably installed at the right end of the rotation damper 21, the two lower pressing rollers 23 are both rotatably installed on the two brackets two 14, the two hydraulic cylinders 24 are respectively installed on the two brackets two 14, and the two brackets two 14 are both located between the two hydraulic cylinders 24, the two brackets five 25 are respectively installed at the top ends of the two hydraulic cylinders 24, and the upper pressing roller 26 is rotatably installed on the two brackets five 25;

[0027] As shown in the figure, Figure 4 The winding device 03 includes a speed reducer one 31, a motor one 32 and a winding roller 33, the speed reducer one 31 is fixedly installed at the left end of the bracket three 15, the motor one 32 is fixedly installed at the left end of the speed reducer one 31, the winding roller 33 is rotatably installed at the right end of the bracket three 15, and the winding roller 33 rotates through the rotation connection between the bracket three 15 and the speed reducer one 31, the motor one 32 provides power to the winding roller 33 through the speed reducer one 31, and a plurality of fixed grooves are arranged on the winding roller 33;

[0028] As shown in the figure, Figure 5 The power device 04 includes a motor two 41, a speed reducer two 42, a gear one 43, a gear two 44, a bracket six 45, a linear motor 46, a bracket seven 47, a polished rod 48, a sliding block one 49 and a bracket eight 50, the motor two 41 is fixedly installed at the top end of the bottom plate 12, the speed reducer two 42 is fixedly installed at the top end of the motor two 41, the gear one 43 is rotatably installed at the top end of the speed reducer two 42, and the motor two 41 provides power to the gear one 43 through the speed reducer two 42, the gear two 44 is rotatably installed at the top end of the bracket four 16, and the gear one 43 and the gear two 44 are meshed with each other, the bracket six 45 is fixedly installed at the top end of the gear two 44, the linear motor 46 and the bracket seven 47 are installed at the top end of the bracket six 45, the polished rod 48 is installed on the bracket seven 47, the sliding block one 49 is slidably installed on the polished rod 48, and the bracket eight 50 is installed at the top end of the linear motor 46 and the sliding block one 49, and the bracket eight 50 is provided with a mounting hole;

[0029] As shown in the figure, Figure 6As shown, the fixing device 05 includes a reducer three 51, a motor three 52, a support nine 53, a plurality of sliders two 54 and a plurality of fixing rollers 55, the reducer three 51 is fixedly installed at the right end of the mounting hole of the support eight 50, the motor three 52 is fixedly installed at the right end of the reducer three 51, the support nine 53 is rotatably installed in the mounting hole of the support eight 50, and the support nine 53 and the reducer three 51 are rotatably connected, the motor three 52 provides power to the support nine 53 through the reducer three 51, a plurality of slide rails at equal angular intervals are arranged on the support nine 53, a plurality of sliders two 54 are slidably installed on the plurality of slide rails respectively, and a plurality of fixing rollers 55 are rotatably installed at the left end of the plurality of sliders two 54 respectively, and the plurality of fixing rollers 55 are adapted to the plurality of fixing grooves of the winding roller 33 respectively;

[0030] First, the plastic sheet is placed on the bearing roller 22, the damper 21 provides damping to prevent the bearing roller 22 from rotating freely, then the plastic sheet passes through the lower pressing roller 23 and the upper pressing roller 26, after that the hydraulic cylinder 24 is opened, the hydraulic cylinder 24 provides power to drive the upper pressing roller 26 to move up and down, the upper pressing roller 26 adjusts the extrusion thickness of the plastic sheet by moving up and down, which is convenient for producing plastic film of different specifications, then the part of the plastic sheet that has not been extruded and stretched at the front end is removed, after that the stretch-formed plastic film is wound on the winding roller 33, at this time the motor one 32, the motor two 41, the linear motor 46 and the motor three 52 are opened, the motor one 32 provides power to drive the winding roller 33 to rotate, the motor two 41 provides power to drive the gear one 43 to rotate, the gear one 43 drives the gear two 44 to rotate, the linear motor 46 provides power to drive the support eight 50 to move back and forth along the slider one 49, the motor three 52 provides power to drive the support nine 53 to rotate, the motor two 41 and the linear motor 46 cooperate to insert the fixing roller 55 into the winding roller 33, then the motor one 32 and the motor three 52 cooperate to drive the winding roller 33 and the support nine 53 to rotate in opposite directions, so that the fixing roller 55 is opened, at this time the plastic film is inserted into the gap between the fixing roller 55 and the fixing groove, after that the support nine 53 and the winding roller 33 are made to rotate in the same direction, driving the fixing roller 55 to tighten and rotate, starting to wind the plastic film, after winding is completed, the support nine 53 and the winding roller 33 are made to rotate in opposite directions, loosening the fixed part of the plastic film, at the same time the motor two 41 and the linear motor 46 cooperate to pull out the fixing roller 55 and point it to the discharging direction, so as to complete the automatic discharging of the plastic film.

[0031] Example 2

[0032] Based on example 1, it further includes:

[0033] As shown in Figure 7 , the auxiliary discharging device 06 includes a plurality of sliders three 61 and a baffle 62, the plurality of sliders three 61 are respectively detachably installed at the left end of the plurality of fixing rollers 55, the baffle 62 is installed on the plurality of sliders three 61, and the baffle 62 is respectively and slidably matched with the plurality of sliders three 61.

[0034] Firstly, the plastic sheet is placed on the bearing roller 22, the damping device 21 provides damping to prevent the bearing roller 22 from rotating freely, then the plastic sheet passes through the lower pressing roller 23 and the upper pressing roller 26, after that, the hydraulic cylinder 24 is opened, which provides power to drive the upper pressing roller 26 to move up and down, adjusting the extrusion thickness of the plastic sheet, facilitating the production of plastic film of different specifications, then the part of the plastic sheet that has not been extruded and stretched at the front end is removed, after that, the stretched and formed plastic film is wound on the winding roller 33, at this time, the motor one 32, the motor two 41, the linear motor 46 and the motor three 52 are opened, the motor one 32 provides power to drive the winding roller 33 to rotate, the motor two 41 provides power to drive the gear one 43 to rotate, the gear one 43 drives the gear two 44 to rotate, the linear motor 46 provides power to drive the bracket eight 50 to reciprocate along the sliding block one 49, the motor three 52 provides power to drive the bracket nine 53 to rotate, the motor two 41 and the linear motor 46 cooperate to insert the fixing roller 55 into the winding roller 33, then the motor one 32 and the motor three 52 cooperate to drive the winding roller 33 and the bracket nine 53 to rotate in opposite directions, so that the fixing roller 55 is opened, at this time, the plastic film is inserted into the gap between the fixing roller 55 and the fixed groove, after that, the bracket nine 53 and the winding roller 33 are driven to rotate in the same direction, driving the fixing roller 55 to tighten and rotate, starting to wind the plastic film, after winding, the bracket nine 53 and the winding roller 33 are driven to rotate in opposite directions, loosening the fixed part of the plastic film, at the same time, the motor two 41 and the linear motor 46 cooperate to pull out the fixing roller 55 and point to the discharging direction, so as to complete the automatic discharging of the plastic film, at this time, the baffle 62 limits the wound plastic film, facilitating the whole roll to take out the plastic film.

[0035] As Figures 1 to 7As shown, the plastic film stretching device of the utility model, in working, first place the plastic sheet on the bearing roller 22, rotate the damper 21 to provide damping, prevent the bearing roller 22 from rotating freely, then let the plastic sheet pass through the down pressure roller 23 and the upper pressure roller 26, after opening the hydraulic cylinder 24, the hydraulic cylinder 24 provides power, drives the upper pressure roller 26 to lift and lower movement, the upper pressure roller 26 adjusts the extrusion thickness of the plastic sheet, and conveniently produces plastic film of different specifications, then removes the part of the plastic sheet that has not been extruded and stretched at the front end, after that, the plastic film that is stretched and formed is wound on the winding roller 33, at this time, the motor one 32, the motor two 41, the linear motor 46 and the motor three 52 are opened, the motor one 32 provides power to drive the winding roller 33 to rotate, the motor two 41 provides power to drive the gear one 43 to rotate, the gear one 43 rotates to drive the gear two 44 to rotate, the linear motor 46 provides power to drive the bracket eight 50 to reciprocate along the sliding block one 49, the motor three 52 provides power to drive the bracket nine 53 to rotate, the motor two 41 and the linear motor 46 cooperate to insert the fixing roller 55 into the winding roller 33, then the motor one 32 and the motor three 52 cooperate to drive the winding roller 33 and the bracket nine 53 to rotate reversely, so that the fixing roller 55 is opened, at this time, the plastic film is inserted into the gap between the fixing roller 55 and the fixed groove, after that, the bracket nine 53 and the winding roller 33 are made to rotate in the same direction, drive the fixing roller 55 to tighten and rotate, start to wind the plastic film, after winding is completed, the bracket nine 53 and the winding roller 33 are made to rotate reversely, loosen the fixed part of the plastic film, at the same time, the motor two 41 and the linear motor 46 cooperate to extract the fixing roller 55 and point to the discharging direction, so that the automatic discharging of the plastic film can be completed, at this time, the baffle 62 limits the wound plastic film, so that the whole roll of plastic film can be taken out conveniently.

[0036] The rotating damper 21, the two hydraulic cylinders 24, the motor one 32, the motor two 41, the gear one 43, the gear two 44, the linear motor 46 and the motor three 52 are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0037] The utility model realizes the main function of: through setting up extrusion device 02, convenient adjustment extrusion thickness, improve machine applicability, and through setting up extrusion device 02, open extrusion position when feeding, convenient for workers to place raw materials, improve machine ease of use, solve the existing machine through two rotating rollers and clamp the film mode to stretch the film, the stretching thickness is fixed, the machine applicability is poor, and the existing machine is not convenient for feeding, and the machine ease of use is poor.

[0038] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A plastic film stretching device comprising a machine body (01); characterized in that, The extrusion device (02), the winding device (03), the power device (04), the fixing device (05) and the auxiliary discharging device (06) are all installed on the machine body (01), the fixing device (05) is installed on the power device (04), and the auxiliary discharging device (06) is installed on the fixing device (05); the machine body (01) provides support, the extrusion device (02) extrudes the plastic sheet with adjustable thickness, the winding device (03), the power device (04) and the fixing device (05) cooperate to stretch, form, wind and transport the plastic film, and the auxiliary discharging device (06) facilitates discharging the wound plastic film.

2. A plastic film stretching apparatus as claimed in claim 1, wherein The machine body (01) comprises a plurality of support seats (11), a bottom plate (12), a support one (13), two support twos (14), a support three (15) and a support four (16), the bottom plate (12) is installed at the top end of the plurality of support seats (11), and the support one (13), the two support twos (14), the support three (15) and the support four (16) are all installed at the top end of the bottom plate (12).

3. A plastic film stretching apparatus as claimed in claim 2, wherein The extrusion device (02) comprises a rotating damper (21), a bearing roller (22), two lower pressing rollers (23), two hydraulic cylinders (24), two support fives (25) and an upper pressing roller (26), the rotating damper (21) is fixedly installed at the right end of the support one (13), the bearing roller (22) is rotatably installed at the right end of the rotating damper (21), the two lower pressing rollers (23) are both rotatably installed on the two support twos (14), the two hydraulic cylinders (24) are respectively installed on the two support twos (14), and the two support twos (14) are both located between the two hydraulic cylinders (24), the two support fives (25) are respectively installed at the top ends of the two hydraulic cylinders (24), and the upper pressing roller (26) is rotatably installed on the two support fives (25).

4. A plastic film stretching apparatus as claimed in claim 2, wherein The winding device (03) comprises a speed reducer one (31), a motor one (32) and a winding roller (33), the speed reducer one (31) is fixedly installed at the left end of the support three (15), the motor one (32) is fixedly installed at the left end of the speed reducer one (31), the winding roller (33) is rotatably installed at the right end of the support three (15), and the winding roller (33) is rotatably connected between the support three (15) and the speed reducer one (31), the motor one (32) provides power to the winding roller (33) through the speed reducer one (31), and a plurality of fixing grooves are formed in the winding roller (33).

5. A plastic film stretching apparatus as claimed in claim 2, wherein The power device (04) includes motor two (41), reducer two (42), gear one (43), gear two (44), bracket six (45), linear motor (46), bracket seven (47), polished column (48), sliding block one (49) and bracket eight (50), motor two (41) is fixedly installed at the top end of the bottom plate (12), reducer two (42) is fixedly installed at the top end of the motor two (41), gear one (43) is rotatably installed at the top end of the reducer two (42), and the motor two (41) provides power to the gear one (43) through the reducer two (42), the gear two (44) is rotatably installed at the top end of the bracket four (16), and the gear one (43) and the gear two (44) are meshed with each other, the bracket six (45) is fixedly installed at the top end of the gear two (44), the linear motor (46) and the bracket seven (47) are installed at the top end of the bracket six (45), the polished column (48) is installed on the bracket seven (47), the sliding block one (49) is slidably installed on the polished column (48), the bracket eight (50) is installed at the top end of the linear motor (46) and the sliding block one (49), and the bracket eight (50) is provided with a mounting hole.

6. A plastic film stretching apparatus as claimed in claim 5, wherein The fixing device (05) includes reducer three (51), motor three (52), bracket nine (53), a plurality of sliding blocks two (54) and a plurality of fixed rollers (55), the reducer three (51) is fixedly installed at the right end of the mounting hole of the bracket eight (50), the motor three (52) is fixedly installed at the right end of the reducer three (51), the bracket nine (53) is rotatably installed in the mounting hole of the bracket eight (50), and the bracket nine (53) and the reducer three (51) are rotatably connected, the motor three (52) provides power to the bracket nine (53) through the reducer three (51), the bracket nine (53) is provided with a plurality of sliding rails at equal angles, a plurality of sliding blocks two (54) are slidably installed on the plurality of sliding rails respectively, and a plurality of fixed rollers (55) are rotatably installed at the left ends of the plurality of sliding blocks two (54) respectively, and the plurality of fixed rollers (55) are adapted to the plurality of fixed grooves of the winding roller (33) respectively.

7. A plastic film stretching apparatus as claimed in claim 6, wherein The auxiliary discharging device (06) includes a plurality of sliding blocks three (61) and a baffle (62), a plurality of sliding blocks three (61) are detachably installed at the left ends of the plurality of fixed rollers (55), and the baffle (62) is installed on the plurality of sliding blocks three (61), and the baffle (62) is slidably matched with the plurality of sliding blocks three (61) respectively.

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