PE shrink film tension detection device

Abstract

The utility model provides a PE shrink film tension detection device which comprises a tension detection machine, a machine shell is arranged on the tension detection machine, a discharging roll and a discharging motor are arranged in the machine shell, a suspension beam located above the discharging roll is fixedly arranged on one side in the machine shell, the front end of the suspension beam is rotationally connected with two pressing arms, and the two pressing arms are arranged on the other side of the machine shell. The free ends of the two pressing arms are rotationally connected with transmission shafts, one ends of the transmission shafts are fixedly sleeved with rubber sleeves, the other ends of the transmission shafts are provided with transmission wheels, and the rubber sleeves on the two pressing arms are located on the two sides of the discharging roll. The two pressing arms are arranged, then the rubber sleeves located on the two sides of the discharging roll are arranged on the two pressing arms, when the two rubber sleeves abut against thin film raw materials on the discharging roll, the transmission contact area can be increased, when the two rubber sleeves are controlled to rotate, the discharging roll can be reliably driven to rotate stably, the slipping phenomenon is eliminated, and discharging continuity is guaranteed; and the tension detection is smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of tension detection, in particular to a PE shrink film tension detection device. Background Art

[0002] In many industries of industrial production, winding control problems are often encountered. For example, in the production process of plastic film, wire, printed matter, etc., the unwinding and winding tension of the strip or wire is crucial to the quality of the product. Therefore, constant tension control is required, that is, the product is subjected to the best tension during the winding process and remains unchanged from beginning to end. Usually, we use a tension detection machine to perform constant tension control.

[0003] The utility model with the publication number CN220844824U proposes a PE heat shrink film tension detection machine with a winding function, including a frame, a material unwinding roll is provided at the lower end of the frame, a glue stick is provided above the material unwinding roll, a unwinding motor is provided behind the glue stick, the unwinding motor is provided at the right end of the motor mounting frame, the left end of the motor mounting frame is provided with a mounting frame shaft and a supporting foot, a film raw material is provided on the material unwinding roll, a first slide is provided at the left end of the supporting foot, a lifting pulley is provided on the first slide, a film stop detector is provided at the left end of the lifting pulley, a film unwinding detector is provided above the film stop detector, a film-free detector is provided above the film unwinding detector, a tension roller is provided above the lifting pulley, a tension detector and a controller are provided on the tension roller provided on the right side of the frame, and a supporting roller is provided at the left end of the controller. The utility model is provided with an automatic height adjustment structure and an automatic bonding structure for the material unwinding roll, which can save the manpower and time cost of manually adjusting the height and maintain the tension provided by the tension roller.

[0004] However, the above-mentioned prior art still has the following deficiencies when used: 1. The film raw material is placed on the unwinding reel, and the glue stick is pressed against the outer peripheral wall of the film raw material. After the unwinding motor is started, the glue stick is driven to rotate. The rotation of the glue stick uses friction to drive the film raw material to run to realize unwinding. However, since the glue stick and the film raw material are in line contact and the surface of the film raw material is smooth, the glue stick is prone to slipping during rotation, resulting in a defect of poor unwinding continuity, and the slipping is prone to wear the film raw material; 2. The unwinding motor has a swing function, which uses its own gravity to drive the glue stick to continuously adhere to the surface of the film raw material. Since the unwinding motor has the characteristic of rotational vibration, this vibration characteristic is prone to form indentations on the film raw material, which will affect its own performance and thus affect the continued tension test.

[0005] To this end, the utility model provides a PE shrink film tension detection device. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a PE shrink film tension detection device to solve the problems raised in the above-mentioned background technology. The utility model has the function of increasing the contact surface with the film raw material, which can effectively avoid the problem of transmission slippage during unwinding, and also has the advantage of avoiding the formation of indentations on the film raw material to reduce performance.

[0007] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a PE shrink film tension detection device, including a tension detection machine, a casing is arranged on the tension detection machine, a feeding roll and a feeding motor are arranged in the casing, a suspension beam located above the feeding roll is fixedly arranged on one side of the casing, the front end of the suspension beam is rotatably connected to two pressure arms, the free ends of the two pressure arms are rotatably connected to a transmission shaft, one end of the transmission shaft is fixedly sleeved with a rubber sleeve, and the other end is provided with a transmission wheel, the rubber sleeves on the two pressure arms are located on both sides of the feeding roll, the feeding motor is fixedly arranged in the casing and above the suspension beam, the output shaft of the feeding motor is fixedly connected to a driving wheel, the driving wheel is connected to the driving wheel through a transmission belt, and a tensioning wheel group located between the two pressure arms and used for tensioning the transmission belt is connected to the suspension beam.

[0008] Furthermore, a mounting seat is welded to the front end of the suspension beam, two parallel supporting shafts are welded to the front end of the mounting seat, and a connecting sleeve which is sleeved on the outside of the supporting shaft is welded to the other end of the pressure arm.

[0009] Furthermore, a gear is provided on the outer peripheral wall fixing sleeve of the connecting sleeve, and the gears on the two pressing arms are meshed and matched.

[0010] Furthermore, the tensioning wheel assembly includes a wheel frame, a guide wheel located on the wheel frame and a tensioner. A guide plate is welded to the top of the wheel frame. The guide plate passes through the suspension beam and the two slide up and down in cooperation. The tensioner performs gravity tensioning on the transmission belt through the guide wheel.

[0011] Furthermore, the tensioner includes a turntable, a traction rope and a weight. The turntable is rotatably connected to one side of the casing and is higher than the guide plate. One end of the traction rope is connected to the top of the guide plate, and the other end is connected to the weight. The outer wall of the turntable is provided with an annular groove that matches the traction rope.

[0012] Furthermore, the other end of the traction rope is fixedly connected to a placement box for placing weights.

[0013] Furthermore, the transmission belt is a synchronous belt.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model provides two pressing arms, and then provides rubber sleeves on both sides of the unwinding roll on the two pressing arms. When the two rubber sleeves press the film raw material on the unwinding roll, the transmission contact area can be increased. When the two rubber sleeves are controlled to rotate, the unwinding roll can be reliably driven to rotate stably, the slipping phenomenon is eliminated, the continuity of the unwinding is guaranteed, and the tension detection is carried out smoothly.

[0016] In the utility model, the unloading motor is fixedly installed in the casing, and a transmission belt and a tensioner are provided, wherein the transmission belt can effectively eliminate the vibration generated by the unloading motor, so that the rubber roll will not form harmful indentations on the film raw material, thereby improving the accuracy of subsequent tension detection tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial structural schematic diagram of a PE shrink film tension detection device of the utility model;

[0018] Figure 2 for Figure 1 The enlarged schematic diagram of the part "a" in the middle;

[0019] Figure 3 It is a schematic diagram of a tensioner of a PE shrink film tension detection device of the utility model.

[0020] In the figure: 1. tension testing machine; 11. casing; 2. unwinding reel; 3. unwinding motor; 4. cantilever beam; 41. mounting seat; 411. supporting shaft; 5. pressing arm; 51. connecting sleeve; 511. gear; 6. transmission shaft; 7. rubber sleeve; 8. transmission wheel; 9. driving wheel; 101. transmission belt; 102. tensioning wheel group; 1021. wheel frame; 10211. guide plate; 1022. guide wheel; 1023. tensioner; 10231. turntable; 102311. annular groove; 10232. traction rope; 102321. placement box; 10233. weight. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a PE shrink film tension detection device, including a tension detection machine 1, a shell 11 is arranged on the tension detection machine 1, a discharge roll 2 and a discharge motor 3 are arranged in the shell 11, and other components on the tension detection machine 1 adopt the structure of the patent document mentioned in the background technology. The technical solution is mainly to improve the transmission mode between the discharge motor 3 and the discharge roll 2 in the prior art, with the purpose of eliminating the problem of slipping of the discharge roll 2 when discharging and the problem of harmful indentations formed on the surface of the film raw material on the discharge roll 2.

[0023] In the present technical solution, a suspension beam 4 located above the unwinding roll 2 is fixedly provided on one side inside the casing 11, and the front end of the suspension beam 4 is rotatably connected to two pressure arms 5. In the specific implementation, it is preferred that a mounting seat 41 is welded to the front end of the suspension beam 4, and two parallel support shafts 411 are welded to the front end of the mounting seat 41, and the other end of the pressure arm 5 is welded to a connecting sleeve 51 mounted on the outside of the support shaft 411. The free ends of the two pressing arms 5 are rotatably connected to the transmission shaft 6, and the two pressing arms 5 form a V-shaped structure with the opening facing downward. A rubber sleeve 7 is fixedly sleeved at one end of the transmission shaft 6, and the rotation of the transmission shaft 6 can drive the rubber sleeve 7 to rotate. A transmission wheel 8 is provided at the other end of the transmission shaft 6, and the transmission wheel 8 is a pulley. The rubber sleeves 7 on the two pressing arms 5 are located on both sides of the unwinding reel 2. After the film raw material is installed on the unwinding reel 2, the rubber sleeves 7 will press against the outer surface of the film raw material when moving toward the unwinding reel 2. At this time, the two rubber sleeves 7 and the film raw material are against each other. When the two rubber sleeves 7 rotate at the same time, the film raw material can be effectively driven, and then the unwinding reel 2 is driven to rotate, and the problem of unwinding slipping will not occur.

[0024] Furthermore, the unloading motor 3 is fixedly arranged in the housing 11 and is located above the suspension beam 4. The output shaft of the unloading motor 3 is fixedly connected with a driving wheel 9, which is a pulley. The driving wheel 9 is connected to the driving wheel 8 through a transmission belt 101, wherein the transmission belt 101 is a synchronous belt. At this time, when the unloading motor 3 starts to rotate, the two rubber sleeves 7 can rotate synchronously in the same direction under the transmission of the transmission belt 101. It should be noted that since the transmission belt 101 is a transmission medium and is made of rubber, it can effectively eliminate vibration and prevent the rubber sleeve 7 from forming harmful indentations on the film raw material.

[0025] Among them, a tensioning wheel group 102 located between the two pressure arms 5 and used to tension the transmission belt 101 is connected to the suspension beam 4. The function of the tensioning wheel group 102 is to tension the transmission belt 101. At the same time, it can drive the two pressure arms 5 to move in opposite directions through the transmission belt 101, so that the two rubber sleeves 7 can press the film raw materials.

[0026] Specifically, the tensioning wheel group 102 includes a wheel frame 1021, a guide wheel 1022 located on the wheel frame 1021, and a tensioner 1023. A guide plate 10211 is welded on the top of the wheel frame 1021. The guide plate 10211 passes through the suspension beam 4 and the two slide up and down in cooperation. The tensioner 1023 gravity-tensions the transmission belt 101 through the guide wheel 1022. That is to say, when the guide wheel 1022 squeezes the transmission belt 101 upward, it will tension the transmission belt 101 and at the same time drive the two rubber sleeves 7 to squeeze the film raw material on the unwinding roll 2 toward each other.

[0027] Preferably, the tensioner 1023 includes a turntable 10231, a traction rope 10232 and a weight 10233. The turntable 10231 is rotatably connected to one side of the housing 11 and is higher than the guide plate 10211. One end of the traction rope 10232 is connected to the top of the guide plate 10211, and the other end is connected to the weight 10233. The outer wall of the turntable 10231 is provided with an annular groove 102311 adapted to the traction rope 10232. The weight 10233 is in a drooping state and uses its own weight to apply an upward pulling force to the guide plate 10211 through the traction rope 10232, so that the rubber sleeve 7 can continuously and stably press against the film raw material.

[0028] In this embodiment, the other end of the traction rope 10232 is fixedly connected to a placement box 102321 for placing weights 10233, that is, the number of weights 10233 can be increased as needed, which has the advantage of convenient adjustment of the tensioning force of the tensioner 1023.

[0029] In this embodiment, a gear 511 is fixedly mounted on the outer peripheral wall of the connecting sleeve 51, and the gears 511 on the two pressing arms 5 are meshed with each other. This arrangement enables the two pressing arms 5 to be in a synchronous but non-directional linkage motion state.

[0030] Working principle: when in use, take out a certain amount of weights 10233, then install the film material on the unwinding reel 2, reset the weights 10233, the transmission belt 101 is tensioned, the rubber sleeve 7 is pressed against the film material, start the unwinding motor 3, and the driving wheel 9 drives the transmission belt 101 to rotate, and then drives the driving wheel 8 to rotate. At this time, the two rubber sleeves 7 rotate in the same direction and drive the film material to run. The unwinding reel 2 rotates to start unwinding. As the roll thickness of the film material gradually decreases, due to the action of the tensioner 1023, the rubber sleeve 7 will continue to press against the film material.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A PE shrink film tension detection device, comprising a tension detection machine (1), wherein a housing (11) is provided on the tension detection machine (1), wherein a material unwinding reel (2) and a material unwinding motor (3) are provided in the housing (11), wherein: A suspension beam (4) located above the unwinding reel (2) is fixedly arranged on one side of the casing (11); the front end of the suspension beam (4) is rotatably connected to two pressure arms (5); the free ends of the two pressure arms (5) are rotatably connected to a transmission shaft (6); one end of the transmission shaft (6) is fixedly sleeved with a rubber sleeve (7), and the other end is provided with a transmission wheel (8); the rubber sleeves (7) on the two pressure arms (5) are located on both sides of the unwinding reel (2); the unwinding motor (3) is fixedly arranged in the casing (11) and located above the suspension beam (4); the output shaft of the unwinding motor (3) is fixedly connected to a driving wheel (9); the driving wheel (9) is connected to the driving wheel (8) via a transmission belt (101); and a tensioning wheel group (102) located between the two pressure arms (5) and used for tensioning the transmission belt (101) is connected to the suspension beam (4).

2. A PE shrink film tension detection device according to claim 1, characterized in that: A mounting seat (41) is welded to the front end of the suspension beam (4), two parallel support shafts (411) are welded to the front end of the mounting seat (41), and a connecting sleeve (51) sleeved on the outside of the support shaft (411) is welded to the other end of the pressure arm (5).

3. A PE shrink film tension detection device according to claim 2, characterized in that: A gear (511) is provided on the outer peripheral wall fixing sleeve of the connecting sleeve (51), and the gears (511) on the two pressing arms (5) are meshed and matched.

4. A PE shrink film tension detection device according to claim 1, characterized in that: The tensioning wheel assembly (102) comprises a wheel frame (1021), a guide wheel (1022) located on the wheel frame (1021), and a tensioner (1023); a guide plate (10211) is welded to the top of the wheel frame (1021); the guide plate (10211) passes through the suspension beam (4) and the two slide together up and down; the tensioner (1023) performs gravity tensioning on the transmission belt (101) through the guide wheel (1022).

5. A PE shrink film tension detection device according to claim 4, characterized in that: The tensioner (1023) comprises a rotating disk (10231), a traction rope (10232) and a weight (10233); the rotating disk (10231) is rotatably connected to one side of the housing (11) and is higher than the guide plate (10211); one end of the traction rope (10232) is connected to the top of the guide plate (10211), and the other end thereof is connected to the weight (10233); and an annular groove (102311) adapted to the traction rope (10232) is provided on the outer peripheral wall of the rotating disk (10231).

6. A PE shrink film tension detection device according to claim 5, characterized in that: The other end of the traction rope (10232) is fixedly connected to a placement box (102321) for placing a weight (10233).

7. A PE shrink film tension detection device according to claim 1, characterized in that: The transmission belt (101) is a synchronous belt.

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