Plastic film drying machine with high drying efficiency

Abstract

The utility model discloses a plastic film dryer with high drying efficiency, which comprises a shell, symmetrically distributed drying bins are arranged in the shell, a drying component is arranged at one end of each drying bin, uniformly distributed drying grooves are formed in the opposite inner side walls of the two drying bins, and a material door is hinged to the front side wall of the shell through hinges. The device further comprises a drying mechanism. The drying mechanism comprises adjusting frames, connecting plates, drying heads and drying holes, the adjustable adjusting frames are arranged in the drying bin, the connecting plates which are evenly distributed are arranged on the opposite inner side faces of the two adjusting frames, the drying heads are arranged on the right side faces of the connecting plates, and the two transversely adjacent drying heads are arranged in an up-down staggered mode. According to the plastic film drying machine with the high drying efficiency, a film is supported and restrained in the initial drying stage, deformation of the film caused by gravity and hot air impact can be reduced, and the film is kept flat and complete so as to better adapt to shape changes of subsequent S-shaped drying.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic film processing, specifically to a plastic film drying machine with high drying efficiency. BACKGROUND

[0002] During the production of plastic film, a certain amount of moisture may be contained after forming by processes such as extrusion and casting. This moisture may come from the raw materials themselves (some raw materials may absorb a small amount of moisture during storage) or the cooling process during processing (for example, the surface of the film after water cooling may have residual moisture). Drying can remove these moisture to ensure the quality of the plastic film. If the film contains too much moisture, bubbles and wrinkles may occur during subsequent processing (such as compounding, printing, etc.) or use, affecting the appearance and performance of the product.

[0003] In the prior art, a plastic film drying machine is disclosed in patent publication CN 218519389 U, which includes a drying machine body, two support legs fixedly installed at the bottom of the drying machine body, an inlet opening formed on the left side of the drying machine body, an outlet opening formed on the right side of the drying machine body, a connecting block fixedly installed on the right side of the drying machine body, a material collecting roller fixedly installed on the connecting block for winding the film, a drive motor fixedly installed on one side wall of the connecting block for driving the material collecting roller to rotate, two drying assemblies symmetrically arranged inside the drying machine body, S-shaped drying clamping grooves formed on the side walls of the two drying assemblies that are close to each other, a plurality of guide rollers installed on the side walls of the two drying assemblies that are close to each other, a heat circulation fan installed inside each of the two drying assemblies, a hot air outlet formed in the drying clamping groove of each of the two drying assemblies for communicating with the hollow area inside the corresponding drying assembly, the lower drying assembly fixedly connected to the inner bottom surface of the drying machine body through a mounting table, and the horizontal height of the lower drying assembly lower than the horizontal height of the inlet opening and the outlet opening, an electric telescopic rod fixedly installed on the inner top surface of the drying machine body, and the active end of the electric telescopic rod fixedly connected to the upper wall of the upper drying assembly, and the horizontal height of the upper drying assembly higher than the horizontal height of the inlet opening and the outlet opening.

[0004] However, the above-mentioned scheme has some problems. Although the plastic film is extruded into an S shape to increase the contact surface for heating, directly extruding the plastic film into an S shape during drying may cause excessive deformation and wrinkles for some plastic films with soft texture and easy deformation. Therefore, we propose a plastic film drying machine with high drying efficiency. Utility model content

[0005] The utility model wants to solve the technical problem of overcoming the defects of the prior art, provide a kind of plastic film drying machine of high drying efficiency, support and constraint are given to film in the initial drying stage, can reduce its deformation by gravity and hot air impact, keep flat and complete to better adapt to the shape change of subsequent S-type drying, can effectively solve the problems in the background art.

[0006] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of plastic film drying machine of high drying efficiency, including shell, the inside of the shell is equipped with the drying bin of symmetrical distribution, the one end of drying bin is equipped with drying assembly, the opposite inner side wall of two drying bins is all opened with the drying groove of uniform distribution, the front side wall of shell is hinged with material door by hinge, still include drying mechanism;

[0007] Drying mechanism: it includes adjusting frame, connecting plate, drying head and drying hole, the inside of the drying bin is all equipped with adjustable adjusting frame, the opposite inner side of two adjusting frames is all equipped with the connecting plate of uniform distribution, the right side of connecting plate is all equipped with drying head, two transversely adjacent drying heads are all up and down staggered arrangement, two longitudinally adjacent drying heads are all left and right staggered arrangement, the opposite inner side wall of longitudinally adjacent drying head is all opened with the drying hole of uniform distribution, support and constraint are given to film in the initial drying stage, can reduce its deformation by gravity and hot air impact, keep flat and complete to better adapt to the shape change of subsequent S-type drying.

[0008] Further, the front side of the shell is provided with a control switch group, the input end of the control switch group is electrically connected with an external power supply, and the control is stable.

[0009] Further, the drying mechanism further includes a guide slide column, the guide slide column is uniformly distributed on the inner side wall of the two drying bins, the drying head is slidably connected with the transversely adjacent guide slide column, and the sliding guide is realized.

[0010] Further, the drying mechanism further includes an electric cylinder, the electric cylinder is installed on the outer side of the two drying bins, the telescopic end of the electric cylinder penetrates the outer side wall of the two drying bins and is located in the interior of the adjacent drying bin, the telescopic end of the electric cylinder is fixedly connected with the middle part of the longitudinally adjacent connecting plate, the input end of the electric cylinder is electrically connected with the output end of the control switch group, and the driving is stable.

[0011] Further, the left and right ends between the upper and lower inner walls of the shell are both provided with symmetrically distributed slide columns, and the drying bin is slidably connected between the slide columns on the left and right sides, so that the drying bin is moved conveniently.

[0012] Further, the rear side inner wall of the shell is provided with a mounting plate, a bidirectional screw rod is rotatably connected between the lower side of the mounting plate and the bottom wall of the shell, the upper and lower ends of the bidirectional screw rod are respectively threadedly connected with the rear end of the drying bin adjacent to the front side, a motor is installed on the upper side of the mounting plate, the output shaft of the motor is fixedly connected with the center of the upper end face of the bidirectional screw rod, and the input end of the motor is electrically connected with the output end of the control switch group, so that the drying bin can be moved conveniently.

[0013] Further, the drying assembly is a hot air machine which is uniformly arranged on the opposite outer side walls of the two drying bins, the input end of the hot air machine is electrically connected with the output end of the control switch group, and drying is facilitated.

[0014] Compared with the prior art, the plastic film drying machine has the following advantages:

[0015] In the drying work of the plastic film, the drying groove of the initial drying bin provides the circulation of hot air, the plastic film is relatively flat between the two drying bins, the film receives heat in a relatively stable state, the film is preliminarily and uniformly heated as a whole, the plastic film is provided with certain support and constraint, the flatness and integrity of the film are maintained, the film can better adapt to the shape change when being dried in the S shape, the drying head is replaced by the drying groove to provide the circulation of hot air through the adjustment of the adjusting frame and the connecting plate, the plastic film is extruded to be S-shaped, the heat contact surface of the plastic film is increased, and the drying efficiency of the plastic film is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the front side of the utility model;

[0018] Figure 3 It is a structural schematic view of the front side of the utility model;

[0019] Figure 4 It is a structural schematic view of the rear side of the utility model;

[0020] Figure 5 It is a structural schematic view of the rear side of the utility model;

[0021] Figure 6 It is a structural schematic view of the front side of the drying bin of the utility model;

[0022] Figure 7 It is a structural schematic view of the front side of the drying bin of the utility model;

[0023] Figure 8This is a schematic diagram of the adjusted drying mechanism of this utility model;

[0024] Figure 9 This is a partial structural diagram of the drying chamber of this utility model;

[0025] Figure 10 This is a partial structural schematic diagram of the drying head of this utility model.

[0026] In the diagram: 1. Outer shell, 2. Drying mechanism, 21. Adjusting frame, 22. Connecting plate, 23. Drying head, 24. Guide slide column, 25. Drying hole, 26. Electric cylinder, 3. Drying chamber, 4. Hot air blower, 5. Drying trough, 6. Slide column, 7. Two-way lead screw, 8. Mounting plate, 9. Motor, 10. Control switch group, 11. Material door. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-10 This embodiment provides a technical solution: a high-efficiency plastic film dryer, comprising a shell 1, with air vents on both the left and right side walls of the shell 1, a control switch group 10 on the front side of the shell 1, the input end of the control switch group 10 being electrically connected to an external power source, symmetrically distributed drying chambers 3 inside the shell 1, symmetrically distributed sliding columns 6 at both ends between the upper and lower inner walls of the shell 1, the drying chambers 3 being slidably connected between the sliding columns 6 on both sides, a mounting plate 8 on the rear inner wall of the shell 1, a bidirectional lead screw 7 rotatably connected between the lower side of the mounting plate 8 and the bottom wall of the shell 1, the upper and lower ends of the bidirectional lead screw 7 being respectively connected to the adjacent drying chambers 3 on the front side. The rear end threaded connection, the upper side of the mounting plate 8 is equipped with a motor 9, the output shaft of the motor 9 is fixedly connected to the center of the upper end face of the double-acting screw 7, the input end of the motor 9 is electrically connected to the output end of the control switch group 10, one end of the drying chamber 3 is equipped with a drying component, the drying component is a hot air blower 4, the hot air blowers 4 are evenly distributed on the opposite outer walls of the two drying chambers 3, the input end of the hot air blowers 4 is electrically connected to the output end of the control switch group 10, the opposite inner walls of the two drying chambers 3 are evenly distributed with drying troughs 5, the front side wall of the outer shell 1 is hinged with a material door 11, the middle of the material door 11 is provided with an observation window, and also includes a drying mechanism 2;

[0029] Drying mechanism 2 includes an adjusting frame 21, a connecting plate 22, a drying head 23, and drying holes 25. Each drying chamber 3 has an adjustable adjusting frame 21 inside. The inner sides of the two adjusting frames 21 are each provided with evenly distributed connecting plates 22. The right side of each connecting plate 22 is provided with a drying head 23. Two horizontally adjacent drying heads 23 are staggered vertically, and two vertically adjacent drying heads 23 are staggered horizontally. The inner sides of the vertically adjacent drying heads 23 are each provided with evenly distributed drying holes 25. Drying mechanism 2 also includes a guide slide column. 24. Guide slide columns 24 are evenly distributed on the inner sidewalls of the two drying chambers 3 that are close to each other. The drying heads 23 are slidably connected to the guide slide columns 24 that are laterally adjacent. The drying mechanism 2 also includes electric cylinders 26. The electric cylinders 26 are respectively installed on the opposite outer sidewalls of the two drying chambers 3. The telescopic ends of the electric cylinders 26 penetrate the opposite outer sidewalls of the two drying chambers 3 and are located inside the adjacent drying chambers 3. The telescopic ends of the electric cylinders 26 are fixedly connected to the middle of the longitudinally adjacent connecting plates 22. The input ends of the electric cylinders 26 are electrically connected to the output ends of the control switch group 10.

[0030] The working principle of the high-efficiency plastic film dryer provided by this utility model is as follows: First, the worker opens the material door 11 and then places the plastic film to be dried into the lower drying chamber 3. The worker then closes the material door 11 and operates the control switch group 10 to start the motor 9. The output shaft of the motor 9 drives the bidirectional lead screw 7 to rotate. At this time, under the rotation restriction of the thread of the bidirectional lead screw 7 and the slide column 6, the two drying chambers 3 move towards each other. When the two drying chambers 3 come into contact at their closest points, the worker operates the control switch group 10 to stop the motor 9. Then, the worker operates the control switch group 10 to start the hot air blower 4. The heating wire inside the hot air blower 4 raises the temperature. Then, air is introduced through the air holes in the outer casing 1 by its own fan. After heat exchange through the heating wire, the introduced air temperature rises and contacts the surface of the plastic film through the drying tank 5, performing preliminary overall drying of the plastic film. At this time, the plastic film receives heat in a relatively stable state, which helps to ensure, to a certain extent, the initial uniform heating of the film. The worker then operates the control switch group 10 to start the motor 9. The output shaft of machine 9 drives the double-acting lead screw 7 to rotate. Under the rotational constraint of the thread of the double-acting lead screw 7 and the sliding column 6, the two drying chambers 3 move away from each other. At this time, the worker observes through the observation window while simultaneously operating the control switch group 10 to operate the electric cylinder 26. The telescopic end of the electric cylinder 26 pushes the adjusting frame 21 to move, which in turn drives the drying head 23 to move via the connecting plate 22. The drying head 23 then slides along the adjacent guide sliding column 24 until it enters the interior of the adjacent drying trough 5, replacing the drying trough 5. The air heated by the hot air blower 4... Through the drying hole 25 of the drying head 23, the control switch group 10 is used to start the motor 9. The output shaft of the motor 9 drives the bidirectional lead screw 7 to rotate. Under the rotation restriction of the thread of the bidirectional lead screw 7 and the slide 6, the two drying chambers 3 move towards each other. When the two drying chambers 3 come into contact at their closest points, the operator controls the control switch group 10 to stop the motor 9. In this way, the cooperation between the drying heads 23 squeezes the plastic film into an S-shape, thus greatly increasing its heat contact surface and greatly improving the drying efficiency of the plastic film.

[0031] It is worth noting that the hot air blower 4 disclosed in the above embodiments is recommended to be a special hot air blower for drying plastic film, with a temperature range of 60-140℃. The motor 9 can be an explosion-proof motor of model YBK3. The electric cylinder 26 is recommended to be a high-temperature resistant explosion-proof servo electric cylinder. The control switch group 10 is equipped with control buttons that correspond one-to-one with each other and are used to control its switching.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A plastic film drying machine with high drying efficiency, comprising a shell (1), the inside of the shell (1) is provided with symmetrically distributed drying bins (3), one end of each drying bin (3) is provided with a drying assembly, the opposite inner side walls of the two drying bins (3) are each provided with uniformly distributed drying grooves (5), and the front side wall of the shell (1) is hingedly connected with a material door (11). Also include drying mechanism (2); The drying mechanism (2) comprises an adjustable frame (21), a connecting plate (22), a drying head (23) and a drying hole (25), the inside of the drying bin (3) is provided with an adjustable frame (21), the opposite inner side of the two adjustable frames (21) is provided with uniformly distributed connecting plates (22), the right side of the connecting plate (22) is provided with a drying head (23), two transversely adjacent drying heads (23) are arranged up and down, two longitudinally adjacent drying heads (23) are arranged left and right, and the opposite inner side wall of the longitudinally adjacent drying head (23) is provided with uniformly distributed drying holes (25).

2. The plastic film drying machine of high drying efficiency according to claim 1, characterized in that: The front side of the shell (1) is provided with a control switch group (10), and the input end of the control switch group (10) is electrically connected with an external power supply.

3. The plastic film drying machine of high drying efficiency according to claim 1, characterized in that: The drying mechanism (2) further comprises a guide slide column (24), which is uniformly distributed on the inner side wall of the two drying bins (3) close to each other, and the drying head (23) is slidably connected with the transversely adjacent guide slide column (24).

4. The plastic film drying machine of high drying efficiency according to claim 2, characterized in that: The drying mechanism (2) further comprises an electric cylinder (26), which is installed on the outer side wall of the two drying bins (3) away from each other, the telescopic end of the electric cylinder (26) penetrates the outer side wall of the two drying bins (3) away from each other and is located in the interior of the adjacent drying bin (3), the telescopic end of the electric cylinder (26) is fixedly connected with the middle part of the longitudinally adjacent connecting plate (22), and the input end of the electric cylinder (26) is electrically connected with the output end of the control switch group (10).

5. The plastic film drying machine of high drying efficiency according to claim 1, characterized in that: The left and right ends between the upper and lower inner walls of the shell (1) are provided with symmetrically distributed slide columns (6), and the drying bins (3) are slidably connected between the slide columns (6) on the left and right sides.

6. The plastic film drying machine of high drying efficiency according to claim 2, characterized in that: The rear inner wall of the shell (1) is provided with a mounting plate (8), a bidirectional screw rod (7) is rotatably connected between the lower side of the mounting plate (8) and the bottom wall of the shell (1), the upper and lower ends of the bidirectional screw rod (7) are respectively threadedly connected with the rear end of the drying bin (3) adjacent to the front side, a motor (9) is installed on the upper side of the mounting plate (8), the output shaft of the motor (9) is fixedly connected with the center of the upper end face of the bidirectional screw rod (7), and the input end of the motor (9) is electrically connected with the output end of the control switch group (10).

7. The plastic film drying machine of high drying efficiency according to claim 2, characterized in that: The drying assembly is a hot air blower (4), which is uniformly distributed on the outer side walls of the two drying bins (3) away from each other, and the input end of the hot air blower (4) is electrically connected with the output end of the control switch group (10).

Images