Air knife adjusting device of plastic film casting equipment

Abstract

The utility model relates to the technical field of air knives, and provides an air knife adjusting device of plastic film casting equipment, which comprises a support frame, four transmission shafts, an air knife, a placing plate, a rotating component, a fixing component and an extruding component, the support frame is provided with a threaded hole, every two transmission shafts form a group, the transmission shafts are rotatably arranged on the support frame, and the air knife is arranged on the placing plate. The number of the air knives is two, the air knives are fixedly installed between each set of transmission shafts, the number of the placing plates is two, the placing plates are fixedly installed on the supporting frame and located between the two air knives, the rotating assembly is arranged on the supporting frame, the fixing assembly is arranged on the supporting frame, and the extruding assembly is arranged on the placing plates. The problems that in the prior art, when an air knife is rotated, a spring needs to be pulled, so that resistance is generated during rotation, and time and labor are wasted when the angle of the air knife is adjusted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air knives, in particular to an air knife regulating device for plastic film casting equipment. Background Art

[0002] The wind knife is the most basic pneumatic device. When air passes through the jet orifice at a certain speed, high-speed fluid will be ejected from the other end. In this process, a mortgage area is formed around the ejected high-speed fluid through the change in air pressure. The wind knife device can be used to blow air on the surface of the film to remove moisture or dust on the surface of the film. When blowing air on the film, the wind knife device is usually fixed in one place and the air is blown by moving the film. This process is not easy to adjust the device, so the blowing of the film also has certain limitations, and it is difficult to blow the plastic film comprehensively.

[0003] A search was conducted on the above-mentioned issues and it was found that in the currently disclosed prior art, such as a cold air knife device for a polyurethane film blowing equipment proposed in publication number CN212603386U, a connecting rod is installed on the side of the wind knife device, and a spring is installed on the connecting rod. When the wind knife angle needs to be changed, the connecting rod can be pulled to pull out the plug of the plug block at the top of the connecting rod, and the plug block is moved by compressing the spring, and the wind knife is rotated to adjust the angle. After the wind blowing is completed, the connecting block is released and reset by the elasticity of the spring. However, when the connecting rod is pulled to rotate it, because the spring has a certain resistance, it may cause effort during the rotation process, and over time, the spring may lose its elasticity, affecting the subsequent reset of the air cooling device. Utility Model Content

[0004] The utility model provides an air knife adjustment device for plastic film casting equipment, which solves the problem in the related art that when the air knife is rotated, a spring needs to be pulled, thereby generating resistance during rotation, and thus adjusting the air knife angle is time-consuming and laborious.

[0005] The technical solution of the utility model is as follows:

[0006] A wind knife adjustment device for plastic film casting equipment comprises a support frame, a transmission shaft, a wind knife, a placement plate, a rotating component, a fixed component and an extrusion component, wherein the support frame is provided with a threaded hole, the transmission shaft is provided with four, the transmission shafts are grouped in pairs, and the transmission shafts are rotatably mounted on the support frame, the wind knife is provided with two, and the wind knife is fixedly mounted between each group of the transmission shafts, the placement plates are provided with two, the placement plates are fixedly mounted on the support frame, and the placement plates are located between two wind knives, the rotating component is arranged on the support frame, the fixed component is arranged on the support frame, and the extrusion component is arranged on the placement plate.

[0007] Furthermore, the rotating assembly includes a transmission roller, a transmission belt, a mounting frame and a motor, the transmission roller is provided in two, and the transmission roller is fixedly mounted on the transmission shaft on an adjacent side, the transmission belt is tensioned and sleeved on the two transmission rollers, the mounting frame is fixedly mounted on the support frame, the motor is mounted on the mounting frame, and the output end of the motor is fixedly connected to one of the transmission shafts.

[0008] Furthermore, the fixing assembly includes a movable plate, a connecting rod, a clamping ring and a bolt. The movable plate is provided in four numbers, the movable plate is slidably mounted on the supporting frame, and a threaded hole is provided on the movable plate. The connecting rod is provided in four numbers, and the connecting rod is fixedly mounted on the movable plate. The clamping ring is provided in four numbers, and the clamping ring is fixedly mounted on the connecting rod. The bolt is provided in several numbers, and the bolt is threadedly connected in the threaded hole.

[0009] Furthermore, the extrusion assembly includes a fixed frame, a sliding rod, an extrusion plate and a limit block. The fixed frame is fixedly installed on the placement plate, and a limit hole is opened on the side of the fixed frame. The sliding rod is provided with two, and the sliding rod is slidably installed on the fixed frame, and a plurality of limit holes are opened on the sliding rod. The extrusion plates are provided with two, and the extrusion plates are fixedly installed on the sliding rod, and the limit block is adapted to the limit hole.

[0010] Furthermore, the curvature of the clamp ring is consistent with the curvature of the transmission shaft, and after the clamp ring is fitted onto the transmission shaft, the bolt can be threadedly connected into the threaded hole.

[0011] Furthermore, a windshield is rotatably mounted on the support frame, and the windshield is configured to be curved.

[0012] The working principle and beneficial effects of the utility model are:

[0013] 1. In the utility model, the two wind knives can be rotated by the transmission assembly, so as to adjust the blowing direction of the wind knives, and the plastic film can be blown in all directions;

[0014] 2. In the utility model, the transmission shaft can be limited by the fixing assembly, and the wind knife can be fixed when it rotates to a certain angle, so that a certain part of the plastic film can be blown;

[0015] In summary, the device can rotate the wind knife through the mutual cooperation between the support frame, the transmission shaft, the wind knife, the placement plate, the rotating component, the fixed component and the extrusion component, so that the wind knife can be blown to the plastic film in multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rotating assembly of the utility model in conjunction with the support frame and the transmission shaft;

[0019] Figure 3 This is a schematic diagram of the structure of the transmission shaft and the fixing assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the placement plate and the extrusion assembly of the utility model.

[0021] In the figure: 1. support frame; 2. transmission shaft; 3. wind knife; 4. placement plate; 101. transmission roller; 102. transmission belt; 103. mounting frame; 104. motor; 201. moving plate; 202. connecting rod; 203. clamping ring; 204. bolt; 301. fixing frame; 302. sliding rod; 303. extrusion plate; 304. limiting block; 401. wind shield. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1~Figure 4 As shown, this embodiment proposes a wind knife adjustment device for a plastic film casting equipment, including a support frame 1, a transmission shaft 2, a wind knife 3, a placement plate 4, a rotating component, a fixed component and an extrusion component. A threaded hole is opened on the support frame 1, and the transmission shaft 2 is set to four, and the transmission shafts 2 are grouped in pairs, and the transmission shafts 2 are rotatably installed on the support frame 1. The wind knife 3 is set to two, and the wind knife 3 is fixedly installed between each group of transmission shafts 2. The placement plate 4 is set to two, and the placement plate 4 is fixedly installed on the support frame 1, and the placement plate 4 is located between the two wind knives 3. The rotating component is arranged on the support frame 1, the fixed component is arranged on the support frame 1, and the extrusion component is arranged on the placement plate 4.

[0024] In this embodiment, the rotating assembly includes a transmission roller 101, a transmission belt 102, a mounting frame 103 and a motor 104. The number of transmission rollers 101 is two, and the transmission rollers 101 are fixedly mounted on the adjacent transmission shaft 2. The transmission belt 102 is tensioned and sleeved with the two transmission rollers 101. The mounting frame 103 is fixedly mounted on the support frame 1. The motor 104 is mounted on the mounting frame 103, and the output end of the motor 104 is fixedly connected to one of the transmission shafts 2. The transmission shaft 2 is rotated by the motor 104, and the transmission roller 101 and the transmission belt 102 drive the other transmission shaft 2 to rotate, thereby rotating the two wind knives 3 to adjust the blowing direction.

[0025] In this embodiment, the fixing assembly includes a movable plate 201, a connecting rod 202, a clamping ring 203 and a bolt 204. The movable plate 201 is set to be four, and the movable plate 201 is slidably installed on the support frame 1, and a threaded hole is opened on the movable plate 201. The connecting rod 202 is set to be four, and the connecting rod 202 is fixedly installed on the movable plate 201. The clamping ring 203 is set to be four, and the clamping ring 203 is fixedly installed on the connecting rod 202. The bolt 204 is set to be several, and the bolt 204 is threadedly connected in the threaded hole. By moving the movable plate 201, the clamping ring 203 is made to fit the transmission shaft 2, clamp it and fix it, thereby limiting its rotation.

[0026] In this embodiment, the extrusion assembly includes a fixed frame 301, a sliding rod 302, an extrusion plate 303 and a limit block 304. The fixed frame 301 is fixedly installed on the placement plate 4, and a limit hole is opened on the side of the fixed frame 301. The sliding rod 302 is set to two, and the sliding rod 302 is slidably installed on the fixed frame 301, and a plurality of limit holes are opened on the sliding rod 302. The extrusion plate 303 is set to two, and the extrusion plate 303 is fixedly installed on the sliding rod 302. The limit block 304 is adapted to the limit hole. By moving the sliding rod 302, the extrusion plate 303 is driven to fit the plastic film, and then the limit block 304 is inserted to fix it, so that the plastic film is placed on the placement plate 4.

[0027] In this embodiment, the curvature of the clamp ring 203 is consistent with the curvature of the transmission shaft 2, and after the clamp ring 203 is fitted to the transmission shaft 2, the bolt 204 can be threaded into the threaded hole, and the transmission shaft 2 is fixed by the clamp ring 203 fitting thereto.

[0028] In this embodiment, a wind shield 401 is rotatably installed on the support frame 1, and the wind shield 401 is configured to be curved. When the wind knife 3 is rotated to a certain angle to blow air, the wind that does not blow onto the plastic film can be intercepted by the wind shield 401 and blown onto the plastic film.

[0029] In summary, when the device adjusts the angle of the wind knife, firstly, the wind shield plate 401 is rotated to a horizontal position, the plastic film is placed on the placement plate 4, and then the slide bar 302 is moved up and down, and the extrusion plate 303 is fitted according to the thickness of the plastic film, and then the limit block 304 is inserted into the limit hole of the fixing frame 301 and the extrusion plate 303 to fix the extrusion plate 303, so that the plastic film is placed on the placement plate 4, and then the motor 104 is started to make one of the transmission shafts 2 drive one of the wind knives 3 to rotate, and the transmission shaft 2 drives one of the transmission rollers 101 and the transmission belt 102 to rotate, so that the two The wind knife 3 rotates to blow air, and when blowing air, the wind shield plate 401 is rotated to a vertical position to block the wind blown by the wind knife 3. The wind can be blocked onto the plastic film through the curved shape of the wind shield plate 401, thereby preventing part of the wind from not being blown onto the plastic film after the wind knife 3 rotates to a certain position. If a part of the plastic film needs to be blown, the wind knife 3 can be rotated to this position, and then the movable plate 201 is moved to make the clamping ring 203 fit the transmission shaft 2, and then the movable plate 201 and the support frame 1 are threadedly connected by the bolts 204, and then the motor 104 is turned off and fixed, so as to blow air to a certain position of the plastic film.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind knife adjustment device for a plastic film casting device, characterized in that: include: A support frame (1), wherein the support frame (1) is provided with a threaded hole; Transmission shafts (2), wherein the transmission shafts (2) are arranged in four numbers, the transmission shafts (2) are arranged in pairs in a group, and the transmission shafts (2) are rotatably mounted on the support frame (1); Wind knives (3), wherein two wind knives (3) are provided, and the wind knives (3) are fixedly installed between each group of the transmission shafts (2); A placement plate (4), wherein two placement plates (4) are provided, the placement plates (4) are fixedly mounted on the support frame (1), and the placement plates (4) are located between the two wind knives (3); A rotating assembly, the rotating assembly being arranged on the supporting frame (1); A fixing component, the fixing component being arranged on the supporting frame (1); An extrusion assembly, wherein the extrusion assembly is arranged on the placement plate (4).

2. The air knife adjustment device for plastic film casting equipment according to claim 1, characterized in that: The rotating assembly comprises: A transmission roller (101), wherein two transmission rollers (101) are provided, and the transmission rollers (101) are fixedly mounted on the transmission shaft (2) on an adjacent side; A transmission belt (102), the transmission belt (102) being tensioned and sleeved on the two transmission rollers (101); A mounting frame (103), the mounting frame (103) being fixedly mounted on the supporting frame (1); A motor (104), wherein the motor (104) is mounted on the mounting frame (103), and an output end of the motor (104) is fixedly connected to one of the transmission shafts (2).

3. The air knife adjustment device for plastic film casting equipment according to claim 2, characterized in that: The fixing assembly comprises: A movable plate (201), wherein four movable plates (201) are provided, the movable plates (201) are slidably mounted on the support frame (1), and threaded holes are provided on the movable plates (201); Connecting rods (202), wherein four connecting rods (202) are provided, and the connecting rods (202) are fixedly mounted on the moving plate (201); Clamp rings (203), wherein four clamp rings (203) are provided, and the clamp rings (203) are fixedly mounted on the connecting rod (202); Bolts (204), wherein a plurality of bolts (204) are provided, and the bolts (204) are threadedly connected in the threaded holes.

4. The air knife adjustment device for plastic film casting equipment according to claim 3, characterized in that: The extrusion assembly comprises: A fixing frame (301), the fixing frame (301) being fixedly mounted on the placement plate (4), and a limiting hole is provided on a side surface of the fixing frame (301); A sliding rod (302), wherein two sliding rods (302) are provided, the sliding rods (302) are slidably mounted on the fixing frame (301), and a plurality of limiting holes are formed on the sliding rod (302); An extrusion plate (303), wherein two extrusion plates (303) are provided, and the extrusion plates (303) are fixedly mounted on the slide bar (302); A limiting block (304), the limiting block (304) being adapted to the limiting hole.

5. The air knife adjustment device for plastic film casting equipment according to claim 4, characterized in that: The curvature of the clamp ring (203) is consistent with the curvature of the transmission shaft (2), and after the clamp ring (203) and the transmission shaft (2) are fitted together, the bolt (204) can be threadedly connected into the threaded hole.

6. The air knife adjustment device for plastic film casting equipment according to claim 5, characterized in that: A windshield plate (401) is rotatably mounted on the support frame (1), and the windshield plate (401) is configured to be curved.

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