CN218726201U

CN218726201U - Heating type ultrahigh molecular weight polyethylene film biaxial stretching machine

Info

Publication number: CN218726201U
Application number: CN202222817921.XU
Authority: CN
Inventors: 殷涛涛
Original assignee: Tongcheng Jiasheng Packaging Co ltd
Current assignee: Tongcheng Jiasheng Packaging Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-24
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses an add tensile field of hot type ultra high molecular weight polyethylene film, concretely relates to polyethylene film, including tensile frame and receipts roller, the quantity of receiving and releasing the roller is two, is provided with tensile frame's both sides respectively, and tensile frame's middle part one side is provided with the electric heat roller, and the bilateral symmetry of electric heat roller sets up the guide roller, and the both ends symmetry of electric heat roller is provided with buffering adjustment mechanism, and tensile frame's middle part is provided with backup pad, the bottom fixedly connected with support column of backup pad. The utility model discloses at first can drive the electric heat roller downstream in proper order through starting biax step motor, realize that length is tensile to the film, when film length is tensile to reach the peak value and produce the resistance simultaneously, can drive limit slide to extrude the spring through the electric heat roller to play the effect of buffering, avoid playing the effect of buffering protection because of tensile degree greatly leads to the impaired fracture of film, improve the finished product quality.

Description

Heating type ultrahigh molecular weight polyethylene film biaxial stretching machine

Technical Field

The utility model relates to a tensile technical field of polyethylene film, more specifically say, the utility model relates to an add hot type ultra high molecular weight polyethylene film biaxial stretching machine.

Background

Ultra-high molecular weight polyethylene is polyethylene having a molecular weight of 100 ten thousand or more. The ultra-high molecular weight polyethylene is a high molecular compound, is difficult to process, and has ultra-high wear resistance and self-lubricating property, and the ultra-high molecular weight polyethylene film is a film made of the ultra-high molecular weight polyethylene, and the film needs to be stretched in length and width during production to reduce the thickness of the film, so a heating type biaxial stretcher is needed.

The prior published application No. CN202021611708.8 is a PVDF film biaxial stretching machine, which comprises a film, a first supporting plate, a heat preservation box, a baffle, a second supporting plate, a first air pipe, a slow cooling mechanism and a wind-up roll; a longitudinal stretching mechanism is arranged in the film advancing direction; the first supporting plate is horizontally arranged below the film, and a plurality of groups of supporting columns are arranged at the bottom of the first supporting plate; the heat insulation box is arranged at the top of the first supporting plate, and a transverse stretching mechanism is arranged in the heat insulation box; the baffle is vertically arranged on the top of the first supporting plate; the second supporting plate is vertically arranged at the bottom of the first supporting plate; the first air pipe is matched with and penetrates through the two groups of first through holes, the first air pipe is provided with two groups of limiting assemblies, and the first air pipe is provided with a plurality of groups of second air pipes in parallel; the slow cooling mechanism is arranged below the film and is in contact with the bottom of the film; the testing machine is provided with a wind-up roll; the first supporting plate is provided with a controller. In the utility model, the thickness uniformity of the transversely stretched film is ensured, and the dimensional stability after stretching is ensured;

however, when the structure is used in practice, when the length is stretched, the adjustment and the buffering are inconvenient, and the damage and the breakage of the film due to the large stretching degree at partial positions are easy to cause, so that the quality of a finished product is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is too single technical problem to prior art solution, provides showing and is different from prior art's solution. In order to overcome the above-mentioned defect of prior art, the utility model provides an add hot type ultra high molecular weight polyethylene film biaxial stretching machine to when providing stretching length in solving above-mentioned background art, inconvenient regulation is carried out and is cushioned, leads to partial position to lead to the impaired fracture of film because of tensile degree is great easily, influences the problem of finished product quality.

In order to achieve the above object, the utility model provides a following technical scheme: a heating type ultrahigh molecular weight polyethylene film biaxial stretching machine comprises a stretching frame and two take-up and pay-off rollers, wherein the two take-up and pay-off rollers are respectively provided with two sides of the stretching frame;

a support plate is arranged in the middle of the stretching frame, a support column is fixedly connected to the bottom of the support plate, an electric heating plate is arranged at the top of the support plate, and width stretching mechanisms are symmetrically arranged on two sides between the support plate and the electric heating plate;

the electric heating roller stretching device is characterized in that air cooling machines are symmetrically arranged at two ends of one side, far away from the electric heating roller, of the inner cavity of the stretching frame, an air suction cover is arranged at the top of one side, close to the air cooling machines, of the inner cavity of the stretching frame, an electric heating box is arranged on one side of the stretching frame, and a connecting hose is connected to the bottom of the electric heating box.

Preferably, buffering adjustment mechanism includes biax step motor, biax step motor sets up the bottom wall body middle part at tensile frame, the both ends symmetry of electric heat roller is provided with spacing slider, spacing spout has been seted up to tensile frame's bilateral symmetry, biax step motor's both ends output end fixedly connected with dwang, biax step motor's the first bevel gear of one end fixedly connected with is kept away from to the dwang, the middle part of spacing spout is provided with the threaded rod, the bottom fixedly connected with second bevel gear of threaded rod, second bevel gear meshes with first bevel gear mutually, the threaded rod runs through the middle part of first bevel gear, spacing slider's top is provided with driving slider, be provided with the spring between driving slider and the spacing slider, driving slider's bottom fixedly connected with dead lever, the dead lever runs through spacing slider's middle part, driving slider's one end fixedly connected with limiting plate is kept away from to the dead lever, the threaded rod runs through the middle part of driving slider and spring, threaded rod and driving slider threaded rod and spacing slider sliding connection, the one end that connecting hose kept away from the electric heat box is connected with one side of spacing slider, connecting hose's middle part is provided with connecting wire, and connecting wire wall body electricity is connected.

It is supplemented that one side of the stretching frame is provided with a controller, the controller is electrically connected with a double-shaft stepping motor, an air cooling machine, an air suction cover, a width stretching mechanism, an electric heating plate and an electric heating box, two ends of the film raw material are wound in the middle of two receiving and releasing rollers, meanwhile, a guide roller is positioned at the bottom of the film raw material, the electric heating roller is positioned at the top of the film raw material, the width stretching mechanism is positioned at two sides of the film raw material, a support plate is positioned at the bottom of the film raw material, the electric heating plate is positioned at the top of the film raw material, the air cooling machine is positioned at two sides of the film raw material, and the air suction cover is positioned at the top of the film raw material;

secondly, the double-shaft stepping motor has a self-locking function, the stepping motor is a discrete value control motor which converts an electric pulse excitation signal into corresponding angular displacement or linear displacement, the motor moves one step each time when inputting an electric pulse, so the motor is also called as a pulse motor, the locking current can be set according to the rated current when the motor stops rotating, the torque of the motor is the holding torque of the motor at the moment, and the holding torque is the maximum torque of the stepping motor, so the self-locking function of the stepping motor can be realized;

when the film stretching device is actually used, the surface of the electric heating roller can heat the film raw material through the electric heating box, the electric heating roller moves downwards to stretch the length of the film, and meanwhile, the arranged spring can avoid fracture caused by excessive stretching and has a buffering effect;

secondly, the position of the width stretching mechanism is heated through the electric heating plate, the width stretching mechanism is used for stretching the width of the film raw material, the film can be air-cooled through the air cooling machine, residual air after air cooling is discharged through the air suction cover, and the using effect is improved.

The utility model discloses a technological effect and advantage:

1. the utility model discloses at first can drive second bevel gear and threaded rod rotation through dwang and first bevel gear through starting biax step motor, thereby drive the drive slider and reciprocate in the inside of spacing spout, and drive the electric heat roller through dead lever and spacing slider and move down, realize the length extension to the film, when the tensile length of film reaches the peak value and produces the resistance simultaneously, can drive the spacing slider through the electric heat roller and extrude the spring, thereby play the effect of buffering, avoid leading to the damaged fracture of film because of tensile degree is great, play the effect of buffer protection, improve the finished product quality;

2. the utility model discloses still can heat and carry out the width drawing to the film through the width stretching mechanism and the electric plate that set up to play the effect of guide support through the guide roller, still can cool off the design to the film after the drawing through air-cooled machine and suction hood, improve the finished product effect, facilitate the use simultaneously, and through the cooperation of dead lever and limiting plate, can improve the connection stability of drive slider and spacing slider, play spacing effect, improve the result of use;

in conclusion, through the mutual influence of the multiple functions, the film can be buffered when being stretched in length, the damage and the breakage of the film caused by the large stretching degree are avoided, the buffering protection effect is achieved, and the quality of finished products is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic side view of the cross-sectional structure of the present invention.

Fig. 3 is a schematic diagram of a partial enlarged structure at a in fig. 2 according to the present invention.

Fig. 4 is the schematic structural diagram of the limiting slide block and the driving slide block of the present invention.

The reference signs are: 1. stretching the frame; 2. a take-up and pay-off roller; 3. an electric heating roller; 4. a guide roller; 5. a support plate; 6. a width stretching mechanism; 7. an electric hot plate; 8. an air cooling machine; 9. an air intake cover; 10. a support pillar; 11. a dual-axis stepper motor; 12. rotating the rod; 13. a first bevel gear; 14. a limiting chute; 15. a threaded rod; 16. a second bevel gear; 17. a limiting slide block; 18. driving the slide block; 19. a spring; 20. fixing the rod; 21. a limiting plate; 22. a connecting hose; 23. an electric heating box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The heating type ultrahigh molecular weight polyethylene film biaxial stretching machine shown in the attached figures 1-4 comprises a stretching frame 1 and two retracting rollers 2, wherein the retracting rollers 2 are respectively provided with two sides of the stretching frame 1, one side of the middle part of the stretching frame 1 is provided with an electric heating roller 3, two sides of the electric heating roller 3 are symmetrically provided with guide rollers 4, and two ends of the electric heating roller 3 are symmetrically provided with buffer adjusting mechanisms;

a support plate 5 is arranged in the middle of the stretching frame 1, a support column 10 is fixedly connected to the bottom of the support plate 5, an electric heating plate 7 is arranged at the top of the support plate 5, and width stretching mechanisms 6 are symmetrically arranged on two sides between the support plate 5 and the electric heating plate 7;

the two ends of one side, far away from the electric heating roller 3, of the inner cavity of the stretching frame 1 are symmetrically provided with the air cooling machine 8, the top of one side, close to the air cooling machine 8, of the inner cavity of the stretching frame 1 is provided with the air suction cover 9, one side of the stretching frame 1 is provided with the electric heating box 23, and the bottom of the electric heating box 23 is connected with the connecting hose 22.

As shown in fig. 1-4, the buffer adjustment mechanism includes a dual-axis stepping motor 11, the dual-axis stepping motor 11 is disposed in the middle of the bottom wall of the stretching frame 1, two ends of the electric heating roller 3 are symmetrically provided with limit sliders 17, two sides of the stretching frame 1 are symmetrically provided with limit chutes 14, two end output ends of the dual-axis stepping motor 11 are fixedly connected with rotating rods 12, one ends of the rotating rods 12 far away from the dual-axis stepping motor 11 are fixedly connected with first bevel gears 13, the middle of the limit chutes 14 are provided with threaded rods 15, bottom ends of the threaded rods 15 are fixedly connected with second bevel gears 16, the second bevel gears 16 are meshed with the first bevel gears 13, the threaded rods 15 penetrate through the middle of the first bevel gears 13, top portions of the limit sliders 17 are provided with driving sliders 18, springs 19 are disposed between the driving sliders 18 and the limit sliders 17, bottom ends of the driving sliders 18 are fixedly connected with fixing rods 20, the fixing rods 20 penetrate through the middle of the limit sliders 17, one ends of the fixing rods 20 far away from the driving sliders 18 penetrate through limiting plates 21, the threaded rods 15 penetrate through the middle portions of the driving sliders 18 and the middle portions of the driving sliders 18, the driving sliders 15 and the connecting hoses 22 are connected with the electric heating roller, and the electric wires connected with the limiting sliders 22.

It is supplemented that one side of the stretching frame 1 is provided with a controller, and the controller is electrically connected with a biaxial stepping motor 11, an air cooling machine 8, an air suction hood 9, a width stretching mechanism 6, an electric heating plate 7 and an electric heating box 23, and two ends of the film raw material are wound in the middle of two receiving and releasing rollers 2, meanwhile, a guide roller 4 is positioned at the bottom of the film raw material, an electric heating roller 3 is positioned at the top of the film raw material, the width stretching mechanism 6 is positioned at two sides of the film raw material, a support plate 5 is positioned at the bottom of the film raw material, the electric heating plate 7 is positioned at the top of the film raw material, the air cooling machine 8 is positioned at two sides of the film raw material, and the air suction hood 9 is positioned at the top of the film raw material;

secondly, the biaxial stepping motor 11 has a self-locking function, and is a stepping motor which is a discrete value control motor converting an electric pulse excitation signal into corresponding angular displacement or linear displacement, and the motor moves one step each time an electric pulse is input, so the motor is also called a pulse motor, and can lock current to be set according to rated current when the motor stops rotating, and the torque of the motor is the holding torque of the motor at this time, and is the maximum torque of the stepping motor, so the self-locking function of the stepping motor can be realized;

when the film stretching device is in actual use, the surface of the electric heating roller 3 can heat the film raw material through the electric heating box 23, the electric heating roller 3 moves downwards to stretch the length of the film, and meanwhile, the spring 19 is arranged, so that the film can be prevented from being broken due to excessive stretching, and a buffering effect is achieved;

secondly, the position of the width stretching mechanism 6 is heated through the electric heating plate 7, the film raw material is subjected to width stretching through the width stretching mechanism 6, meanwhile, the film can be subjected to air cooling through the air cooling machine 8, and residual air after air cooling is discharged through the air suction cover 9, so that the using effect is improved.

The utility model discloses the theory of operation: when the device is used, a film only needs to penetrate through the middle part of a stretching frame 1 as shown in figure 1, then the electric heating box 23 and the double-shaft stepping motor 11 are controlled to be started through the controller, the electric heating box 23 can sequentially heat the surface of the electric heating roller 3, and the double-shaft stepping motor 11 can sequentially drive the driving slide block 18 to move downwards, so that the limiting slide block 17 drives the electric heating roller 3 to extrude the film downwards, and the length stretching of the film is realized;

meanwhile, when the length of the film is stretched to the maximum degree, the limiting slide block 17 extrudes the spring 19 to play a role in buffering, and at the moment, the buffering function can be played;

then when the film passes through between backup pad 5 and electric plate 7, electric plate 7 heats the film to carry out the width through width stretching mechanism 6 and stretch, after the drawing is accomplished, air-cooled machine 8 cools down the film, makes the film stereotype, improves the result of use.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a heating type ultra high molecular weight polyethylene film biaxial stretching machine, includes tensile frame (1) and receive and release roller (2), the quantity of receiving and releasing roller (2) is two, is provided with the both sides of tensile frame (1) respectively, its characterized in that: an electric heating roller (3) is arranged on one side of the middle part of the stretching frame (1), guide rollers (4) are symmetrically arranged on two sides of the electric heating roller (3), and buffer adjusting mechanisms are symmetrically arranged at two ends of the electric heating roller (3);

a support plate (5) is arranged in the middle of the stretching frame (1), a support column (10) is fixedly connected to the bottom of the support plate (5), an electric heating plate (7) is arranged at the top of the support plate (5), and width stretching mechanisms (6) are symmetrically arranged on two sides between the support plate (5) and the electric heating plate (7);

the electric heating roller is characterized in that air cooling machines (8) are symmetrically arranged at two ends of one side, away from the electric heating roller (3), of the inner cavity of the stretching frame (1), an air suction cover (9) is arranged at the top of one side, close to the air cooling machines (8), of the inner cavity of the stretching frame (1), an electric heating box (23) is arranged on one side of the stretching frame (1), and a connecting hose (22) is connected to the bottom of the electric heating box (23).

2. The heated type ultrahigh molecular weight polyethylene film biaxial stretching machine as claimed in claim 1, wherein: buffering adjustment mechanism includes biax step motor (11), biax step motor (11) set up in the bottom wall body middle part of tensile frame (1), the both ends symmetry of electric heat roller (3) is provided with spacing slider (17), spacing spout (14) have been seted up to the bilateral symmetry of tensile frame (1).

3. The heated type ultrahigh molecular weight polyethylene film biaxial stretching machine as claimed in claim 2, wherein: the both ends output end fixedly connected with dwang (12) of biax step motor (11), the first bevel gear of one end fixedly connected with (13) of biax step motor (11) is kept away from in dwang (12), the middle part of spacing spout (14) is provided with threaded rod (15).

4. The heated type ultrahigh molecular weight polyethylene film biaxial stretching machine as claimed in claim 3, characterized in that: the bottom end of the threaded rod (15) is fixedly connected with a second bevel gear (16), the second bevel gear (16) is meshed with the first bevel gear (13), and the threaded rod (15) penetrates through the middle of the first bevel gear (13).

5. The heated type ultrahigh molecular weight polyethylene film biaxial stretching machine as claimed in claim 2, wherein: the top of spacing slider (17) is provided with drive slider (18), be provided with spring (19) between drive slider (18) and spacing slider (17), the bottom fixedly connected with dead lever (20) of drive slider (18), the middle part of spacing slider (17) is run through in dead lever (20), one end fixedly connected with limiting plate (21) of drive slider (18) are kept away from in dead lever (20).

6. The heated type ultrahigh molecular weight polyethylene film biaxial stretching machine as claimed in claim 3, characterized in that: the threaded rod (15) penetrates through the middle parts of the driving sliding block (18) and the spring (19), the threaded rod (15) is in threaded connection with the driving sliding block (18), and the threaded rod (15) is in sliding connection with the limiting sliding block (17).

7. The heated type ultrahigh molecular weight polyethylene film biaxial stretching machine as claimed in claim 1, wherein: one end, far away from the electric heating box (23), of the connecting hose (22) is connected with one side wall body of the limiting sliding block (17), a connecting wire is arranged in the middle of the connecting hose (22), and the connecting wire is electrically connected with the electric heating roller (3).