Cooling device for full-biodegradable plastic film production

Abstract

The utility model discloses a cooling device for full biodegradable plastic film production, which comprises a lower air bellow, support legs are fixedly arranged below the lower air bellow, an air cooler is communicated below the lower air bellow, ventilation pipes are communicated at four corners above the lower air bellow, an upper air bellow is communicated above the ventilation pipes, and a lower air bellow is communicated above the upper air bellow. Clamping and cooling mechanisms used for smoothing plastic films are arranged between the lower air box and the upper air box, a rolling and deviation correcting mechanism used for correcting deviation of the plastic films is arranged between the lower air box and the upper air box, and the two clamping and cooling mechanisms are arranged, so that the plastic films can be clamped, straightened and conveyed, and the situation that the plastic films are folded and overlapped is prevented; and when the plastic film transversely deviates on the clamping and cooling mechanism, the plastic film can be kept in the winding roller all the time through the winding deviation correcting mechanism, the situation that the plastic film runs out of the winding roller and cannot be wound is prevented, and the whole device is convenient to operate, does not need manual operation and is high in working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic film production, specifically to a cooling device for full biodegradable plastic film production. BACKGROUND

[0002] Biodegradable mulch film refers to a kind of plastic mulch film that can be degraded by microorganisms under natural environmental conditions. After bacteria, fungi and actinomycetes and other microorganisms erode the plastic film, the polymer components are hydrolyzed, ionized or protonated due to cell growth, mechanical damage occurs, and the polymer is broken into oligomer fragments. Enzymes secreted by fungi or bacteria cause water-soluble polymers to decompose or oxidize into water-soluble fragments, generating new small molecular compounds, and eventually decomposing into CO2 and H2O. During production, biodegradable plastic film needs to be cooled to facilitate production, thus a cooling device for biodegradable plastic film production is needed.

[0003] In the prior art, a cooling device for full biodegradable plastic film production with publication number "CN221518497U" is applied in the field of plastic film production. A connecting seat is fixedly installed at the bottom and top of the cooling box. A gas cylinder is fixedly installed at the top and bottom of the connecting seat. A U-shaped groove frame is fixedly installed at the top of the gas cylinder. A shaft rod is rotatably connected inside the U-shaped groove frame. A pressure roller is fixedly installed on the surface of the shaft rod to prevent the plastic film from wrinkling during cooling, which improves the use effect of the plastic film. A placing rack is fixedly installed on both sides of the surface of the cooling box. A fan one is fixedly installed inside the placing rack. A sliding rail is fixedly installed inside the cooling box. An ice box is slidingly connected inside the sliding rail. A base is fixedly installed at the bottom of the cooling box. A fan two is fixedly installed at the top of the base to improve the cooling efficiency and cooling effect of the device.

[0004] However, the prior art still has some shortcomings, such as:

[0005] During use of the above device, the plastic film may deviate from the pressure roller during air cooling, which may cause deviation or overlapping during winding, resulting in winding failure or the need for manual intervention and adjustment, affecting the working efficiency of the device. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a cooling device for full biodegradable plastic film production to solve the problems in the background art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A cooling device for the production of fully biodegradable plastic film, comprising a lower wind box, a support leg fixedly arranged below the lower wind box, a cold air machine communicated below the lower wind box, a ventilation pipe communicated at the upper four corners of the lower wind box, and an upper wind box communicated above the ventilation pipe;

[0009] A clamping cooling mechanism for smoothing the plastic film is arranged between the lower wind box and the upper wind box.

[0010] A winding deviation correction mechanism for correcting the deviation of the plastic film is arranged between the lower wind box and the upper wind box.

[0011] Preferably, the clamping cooling mechanism comprises two groups of fixed supports fixedly arranged between the lower wind box and the upper wind box, the fixed supports are provided with movable grooves, a fixed shaft is fixedly arranged between each group of fixed supports, a movable shaft is arranged in the movable groove, a smoothing roller is rotatably arranged on the fixed shaft and the movable shaft, threaded holes are formed at the two ends of the fixed shaft, sliding holes are formed at the two ends of the movable shaft, a threaded rod is arranged in the sliding hole and engaged with the threaded hole, and a plurality of ventilation holes are formed between the two groups of fixed supports.

[0012] Preferably, the winding deviation correction mechanism comprises two support frames fixedly arranged on the lower wind box, a rotating shaft is rotatably arranged between the two support frames, a motor fixedly connected to the support frame is fixedly connected to one end of the rotating shaft, a plurality of racks are fixedly arranged in the middle of the rotating shaft, a winding roller is slidingly arranged on the rotating shaft, a circular ring is slidingly arranged on the rotating shaft at the two ends of the winding roller, an electric telescopic rod fixedly connected to the support frame is fixedly arranged on one of the circular rings, a support rod is fixedly arranged on both of the circular rings, a light shielding strip is fixedly connected to the end of the support rod away from the circular ring, two light transmission holes are formed in the light shielding strip, and an optical transceiver unit is arranged on the lower wind box and the upper wind box.

[0013] Preferably, the optical transceiver unit comprises an ultraviolet light strip fixedly arranged above the lower wind box, the ultraviolet light strip is arranged directly below the light shielding strip, and two ultraviolet sensors are fixedly arranged directly above the ultraviolet light strip below the upper wind box.

[0014] Preferably, a compression spring is arranged between the fixed shaft and the movable shaft.

[0015] Preferably, the length of the light shielding strip is longer than the length of the ultraviolet light strip, the distance between the two light transmission holes is greater than the distance between the two ultraviolet sensors, and the distance between the two light transmission holes is less than or equal to the length of the winding roller.

[0016] Preferably, the ultraviolet sensor is signal connected to the electric telescopic rod.

[0017] Compared with the prior art, the utility model has the advantages of

[0018] 1. Through the setting of two groups of clamping cooling mechanisms, plastic film can be clamped, straightened and conveyed, preventing the plastic film from being wrinkled and overlapped during the blowing and cooling process, thereby improving the working efficiency of the device.

[0019] 2. When the plastic film is horizontally offset on the clamping cooling mechanism, the winding and correcting mechanism can keep the plastic film in the winding roller at all times, preventing the plastic film from running out of the winding roller and causing winding failure. The entire device is convenient to operate, does not require manual operation, and has high working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is a bottom view structure schematic diagram of the utility model;

[0022] Figure 3 It is an internal structure schematic diagram of the utility model;

[0023] Figure 4 It is a structure schematic diagram of the winding and correcting mechanism of the utility model;

[0024] Figure 5 It is a structure schematic diagram of the shaft and winding roller of the utility model.

[0025] In the drawing: 1, lower air bellow; 2, supporting leg; 3, cold air blower; 4, ventilation pipe; 5, upper air bellow; 6, fixed support; 7, movable groove; 8, fixed shaft; 9, movable shaft; 10, smoothing roller; 11, threaded rod; 12, ventilation hole; 13, supporting frame; 14, rotating shaft; 15, motor; 16, circular ring; 17, electric telescopic rod; 18, light-shielding strip; 19, light-transmitting hole; 20, ultraviolet lamp strip; 21, ultraviolet sensor; 22, compression spring; 23, winding roller; 24, rack; 25, supporting rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0028] Embodiment one:

[0029] The utility model provides a cooling device for full biodegradable plastic film production, including the support leg 2 who is fixedly arranged below the lower wind box 1, the lower wind box 1 is connected with the cold air machine 3 below, the upper corner of lower wind box 1 is connected with the ventilation pipe 4, the ventilation pipe 4 is connected with the upper wind box 5 above, the cold air machine 3 blows into the lower wind box 1 after electrification work, and it enters the upper wind box 5 through the ventilation pipe 4, finally blows out through the ventilation hole 12 opened on the lower wind box 1 and the upper wind box 5, and the upper and lower surfaces of plastic film are cooled.

[0030] The utility model discloses a clamping cooling mechanism for flattening plastic film between the lower wind box 1 and the upper wind box 5, the clamping cooling mechanism includes two groups of fixed supports 6 fixedly arranged between the lower wind box 1 and the upper wind box 5, the fixed support 6 is provided with a movable slot 7, a fixed shaft 8 is fixedly inserted between each group of fixed supports 6, a movable shaft 9 is inserted in the movable slot 7, the fixed shaft 8 and the movable shaft 9 are rotatably provided with a flattening roller 10, the fixed shaft 8 and the movable shaft 9 are fixed and not rotating, and the flattening roller 10 can rotate on the fixed shaft 8 and the movable shaft 9.

[0031] The two ends of the fixed shaft 8 are provided with threaded holes, the two ends of the movable shaft 9 are provided with sliding holes, a threaded rod 11 engaged with the threaded holes is inserted in the sliding holes, a compression spring 22 is sleeved between the fixed shaft 8 and the movable shaft 9, the compression spring 22 can support the fixed shaft 8 and the movable shaft 9, the distance between the two flattening rollers 10 on the fixed shaft 8 and the movable shaft 9 can be adjusted by rotating the threaded rod 11 according to the thickness of the plastic film, so that the plastic film can slide on the flattening roller 10, the flattening roller 10 can also be rotated, the two flattening rollers 10 cannot tighten the plastic film to slide, and the lower wind box 1 and the upper wind box 5 are provided with a plurality of ventilation holes 12 between the two groups of fixed supports 6 to blow and cool the upper and lower surfaces of the plastic film.

[0032] Example two:

[0033] The utility model discloses a winding deviation correction mechanism for correcting the deviation of the plastic film between the lower wind box 1 and the upper wind box 5, the winding deviation correction mechanism includes two support frames 13 fixedly arranged on the lower wind box 1, a rotating shaft 14 is rotatably arranged between the two support frames 13, one end of the rotating shaft 14 is fixedly connected with a motor 15 fixed on the support frame 13, the motor 15 can drive the rotating shaft 14 to rotate on the two support frames 13, a plurality of racks 24 are fixedly arranged in the middle of the rotating shaft 14, a winding roller 23 is slidingly clamped on the rotating shaft 14, the length of the rack 24 is less than the length of the winding roller 23, a tooth groove is formed in the winding roller 23 to clamp the rack 24, when the rotating shaft 14 rotates, the winding roller 23 can rotate together, and the winding roller 23 can slide on the rotating shaft 14 without affecting the rotation of the rotating shaft 14.

[0034] The rotating shaft 14 is sleeved with a ring 16 at both ends of the winding roller 23, one of the rings 16 is fixedly provided with an electric telescopic rod 17 fixed on the support frame 13, both of the rings 16 are fixedly provided with a support rod 25, one end of the support rod 25 away from the ring 16 is fixedly connected with a light shielding strip 18, the light shielding strip 18 is provided with two light transmission holes 19, when the electric telescopic rod 17 is telescoped, the two rings 16 and the winding roller 23 can slide on the rotating shaft 14 together, at the same time, the support rod 25 and the light shielding strip 18 are moved together, the light shielding strip 18 can block the ultraviolet light emitted by the ultraviolet light strip 20, only the ultraviolet light can pass through the light transmission hole 19, the optical transceiver unit is arranged on the lower wind box 1 and the upper wind box 5, and the extension and retraction of the electric telescopic rod 17 can be controlled by signals.

[0035] Embodiment three:

[0036] The optical transceiver unit comprises the ultraviolet light strip 20 fixedly arranged above the lower wind box 1, the ultraviolet light strip 20 is arranged directly below the light shielding strip 18, the length of the light shielding strip 18 is longer than that of the ultraviolet light strip 20, the lower wind box 5 is fixedly provided with two ultraviolet sensors 21 directly above the ultraviolet light strip 20, the distance between the two light transmission holes 19 is greater than the distance between the two ultraviolet sensors 21, the distance between the two light transmission holes 19 is less than or equal to the length of the winding roller 23, and the distance between the two light transmission holes 19 is the same as the width of the plastic film in the winding roller 23.

[0037] The ultraviolet sensor 21 is signal connected with the electric telescopic rod 17, when the ultraviolet sensor 21 on the side of the motor 15 receives the ultraviolet light emitted by the ultraviolet light strip 20, the electric signal converted by the ultraviolet sensor 21 will control the electric telescopic rod 17 to extend, so that the ring 16 and the winding roller 23 move away from the motor 15 together, until the ultraviolet sensor 21 cannot receive the ultraviolet light emitted by the ultraviolet light strip 20, when the ultraviolet sensor 21 away from the motor 15 receives the ultraviolet light emitted by the ultraviolet light strip 20, the electric signal converted by the ultraviolet sensor 21 will control the electric telescopic rod 17 to shorten, so that the ring 16 and the winding roller 23 move close to the motor 15 together, until the ultraviolet sensor 21 cannot receive the ultraviolet light emitted by the ultraviolet light strip 20.

[0038] Working principle: first, the plastic film is passed between the two flattening rollers 10 and wound on the winding roller 23, then the distance between the two flattening rollers 10 is adjusted by rotating the threaded rod 11, so that the distance between the two flattening rollers 10 can only pass through a layer of plastic film, then the cooling fan 3 and the motor 15 are started, the ultraviolet light strip 20 is turned on, and the cooling fan 3 blows the upper and lower surfaces of the plastic film through the air holes 12 on the lower wind box 1 and the upper wind box 5.

[0039] The motor 15 drives the winding roller 23 to rotate through the rotating shaft 14 to wind the plastic film, and the plastic film moves between the air vents 12 on the upper and lower sides during the winding process to cool down, if the plastic film deviates laterally and approaches the motor 15 during the winding process, the plastic film cannot block the light transmission hole 19 away from the motor 15, the ultraviolet sensor 21 away from the motor 15 receives the ultraviolet light, and then the electric telescopic rod 17 is controlled to retract, the circular ring 16 drives the winding roller 23 to move towards the motor 15, until the light transmission hole 19 away from the motor 15 is blocked by the plastic film again, and then the electric telescopic rod 17 stops retracting, if the plastic film deviates laterally and moves away from the motor 15, the plastic film cannot block the light transmission hole 19 close to the motor 15, the ultraviolet sensor 21 close to the motor 15 receives the ultraviolet light, and then the electric telescopic rod 17 is controlled to extend, the circular ring 16 drives the winding roller 23 to move away from the motor 15, until the light transmission hole 19 close to the motor 15 is blocked by the plastic film again, and then the electric telescopic rod 17 stops extending, and the plastic film is always aligned with the winding roller 23.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for the production of fully biodegradable plastic film, comprising a lower wind box (1), wherein a supporting leg (2) is fixedly arranged below the lower wind box (1), and a cold air machine (3) is communicated below the lower wind box (1), characterized in that: The lower wind box (1) is communicated with ventilation pipes (4) at four corners, and the ventilation pipes (4) are communicated with an upper wind box (5) above. The lower wind box (1) and the upper wind box (5) are provided with a clamping cooling mechanism for smoothing the plastic film. The lower wind box (1) and the upper wind box (5) are provided with a winding deviation correction mechanism for correcting the deviation of the plastic film.

2. The cooling device for the production of fully biodegradable plastic film according to claim 1, characterized in that: The clamping cooling mechanism comprises two groups of fixed supports (6) fixedly arranged between the lower wind box (1) and the upper wind box (5), the fixed supports (6) are provided with movable grooves (7), a fixed shaft (8) is fixedly arranged between each group of fixed supports (6), a movable shaft (9) is arranged in the movable groove (7), a smoothing roller (10) is rotatably arranged on the fixed shaft (8) and the movable shaft (9), threaded holes are formed in the two ends of the fixed shaft (8), sliding holes are formed in the two ends of the movable shaft (9), a threaded rod (11) is arranged in the sliding hole and engaged with the threaded hole, and a plurality of ventilation holes (12) are formed between the two groups of fixed supports (6) in the lower wind box (1) and the upper wind box (5).

3. The cooling device for the production of fully biodegradable plastic film according to claim 1, characterized in that: The winding deviation correction mechanism comprises two support frames (13) symmetrically fixed on the lower wind box (1), a rotating shaft (14) is rotatably arranged between the two support frames (13), one end of the rotating shaft (14) is fixedly connected with a motor (15) fixed on the support frame (13), a plurality of racks (24) are fixedly arranged in the middle of the rotating shaft (14), a winding roller (23) is slidably arranged on the rotating shaft (14), a circular ring (16) is slidably arranged on the rotating shaft (14) at both ends of the winding roller (23), one of the circular rings (16) is fixedly arranged with an electric telescopic rod (17) fixed on the support frame (13), a support rod (25) is fixedly arranged on both of the circular rings (16), one end of the support rod (25) away from the circular ring (16) is fixedly connected with a light shielding strip (18), two light transmission holes (19) are formed in the light shielding strip (18), and an optical transceiver unit is arranged on the lower wind box (1) and the upper wind box (5).

4. The cooling device for the production of fully biodegradable plastic film according to claim 3, characterized in that: The optical transceiver unit comprises an ultraviolet light strip (20) fixedly arranged above the lower wind box (1), the ultraviolet light strip (20) is arranged directly below the light shielding strip (18), and two ultraviolet sensors (21) are fixedly arranged directly above the ultraviolet light strip (20) below the upper wind box (5).

5. The cooling device for the production of fully biodegradable plastic film according to claim 2, characterized in that: The threaded rod (11) is sleeved with a compression spring (22) between the fixed shaft (8) and the movable shaft (9).

6. The cooling device for the production of fully biodegradable plastic film according to claim 4, characterized in that: The length of the light shielding strip (18) is longer than the length of the ultraviolet light strip (20), the distance between the two light transmission holes (19) is greater than the distance between the two ultraviolet sensors (21), and the distance between the two light transmission holes (19) is less than or equal to the length of the winding roller (23).

7. The cooling device for the production of fully biodegradable plastic film according to claim 4, characterized in that: The ultraviolet sensor (21) is signal connected with the electric telescopic rod (17).

Images