Raw material melting device for plastic film production

Abstract

The utility model provides a raw material melting device for plastic film production, which relates to the technical field of plastic processing, and comprises a tank body, the upper surface of the tank body is fixedly connected with a feed pipe, the arc surface of the tank body is fixedly connected with a discharge pipe, the inside of the arc surface of the tank body is fixedly connected with a plurality of heating pipes, and the arc surface of the tank body is internally connected with the discharge pipe. A stirring shaft is arranged in the tank body through a motor, two stirring blades are fixedly connected to the arc surface of the stirring shaft, a filter screen is fixedly connected to the interior of the tank body and located at the bottoms of the stirring blades, and a cleaning device is arranged on the upper surface of the filter screen and comprises a U-shaped plate; two arms of the U-shaped plate are fixedly connected to the upper surface of the filter screen, the effect of cleaning the filter screen is achieved through the cleaning device, and the situation that molten raw materials cannot pass through the filter screen and the tank body cannot be normally used due to the fact that holes of the filter screen are blocked by granular residues is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastics processing especially relates to a raw material melting device for plastic film production. BACKGROUND

[0002] The raw material melting device for plastic film production is an important component in a plastic film production line, and its main function is to heat plastic raw materials to a molten state to provide uniform melt for subsequent processing.

[0003] The prior art such as the utility model with announcement number CN216831743U discloses a raw material melting device for plastic film production, which can fully stir the plastic raw materials through the arrangement of the rotating motor, rotating shaft, first stirring blade, second stirring blade and third stirring blade, and can greatly melt the plastic raw materials through the arrangement of the inner cavity wall, hot gas pipeline and heating aluminum plate. The raw material particles remaining in the melting process of the plastic raw materials are filtered through the first filter plate, first filter hole, second filter plate and second filter hole, and the remaining raw material particles are melted again through the inner cavity wall and hot gas pipeline.

[0004] The inventor found in daily work that after the filter plate is used for a long time, the filter holes on the filter plate are blocked, and the melting device cannot be used normally. UTILITY MODEL CONTENTS

[0005] The utility model discloses a raw material melting device for plastic film production to solve the shortcomings in the prior art.

[0006] In order to realize the above-mentioned purpose, the utility model discloses a raw material melting device for plastic film production, which comprises a tank body, an inlet pipe is fixedly connected to the upper surface of the tank body, an outlet pipe is fixedly connected to the circular arc surface of the tank body, a plurality of heating pipes are fixedly connected to the inside of the circular arc surface of the tank body, a stirring shaft is arranged in the tank body by means of a motor, two stirring blades are fixedly connected to the circular arc surface of the stirring shaft, a filter screen is fixedly connected to the inside of the tank body, the filter screen is located at the bottom of the stirring blade, a cleaning device is arranged on the upper surface of the filter screen, the cleaning device comprises a U-shaped plate, the two arms of the U-shaped plate are fixedly connected to the upper surface of the filter screen, a slide rod is slidably arranged on the surface of the U-shaped plate, a knocking block is fixedly connected to one end of the slide rod close to the filter screen, a spring is sleeved on the circular arc surface of the slide rod, the two ends of the spring are fixedly connected with the U-shaped plate and the knocking block respectively, the other end of the slide rod is fixedly connected with a triangular plate, and a supporting rod is fixedly connected to the triangular plate corresponding to the stirring blade.

[0007] The effect achieved by the above-mentioned components is that when the plastic film raw material needs to be melted, the worker first sends the raw material into the inside of the tank through the feeding pipe, at this time the heating pipe heats the tank, the raw material is melted, the melted raw material slowly passes through the filter screen into the bottom of the tank and flows out from the discharge pipe, while the granular residues in the melted raw material are blocked, at the same time the worker rotates the stirring shaft and the stirring blade through the motor, the stirring blade stirs the melted raw material to avoid the melted raw material from cooling when the stirring blade rotates, when the supporting rod on the stirring blade moves to the position of the triangular plate, the supporting rod extrudes the inclined surface of the triangular plate, the triangular plate moves to the direction of the filter screen with the slide rod and the knocking block, the spring on the slide rod contracts, and finally the knocking block knocks the filter screen, the filter screen shakes, when the supporting rod moves away from the triangular plate, under the action of the spring reset force, the knocking block resets, with the continuous repetition of the supporting rod and the triangular plate, the knocking block can continuously knock the filter screen, thereby avoiding the holes of the filter screen from being blocked by the granular residues, the cleaning device achieves the effect of cleaning the filter screen, avoids the holes of the filter screen from being blocked by the granular residues, thereby causing the melted raw material to be unable to pass through the filter screen, and the tank cannot be used normally.

[0008] Preferably, the circular arc surface of the slide rod is fixedly connected with a plurality of limiting pieces, and the plurality of limiting pieces are distributed in a circle.

[0009] The effect achieved by the above-mentioned components is that the limiting pieces limit the moving direction of the slide rod, avoid the rotation of the slide rod, and improve the stability of the movement of the slide rod.

[0010] Preferably, one end of the supporting rod is fixedly connected with a supporting plate, and both arms of the supporting plate are rotatably connected with the same rotating piece.

[0011] The effect achieved by the above-mentioned components is that the rotating piece on the supporting plate rotates with the inclined surface of the triangular plate, thereby reducing the friction between the supporting rod and the triangular plate, and facilitating the movement of the supporting rod with the triangular plate.

[0012] Preferably, the circular arc surface of the supporting rod is fixedly connected with a diagonal rod, and one end of the diagonal rod is fixedly connected with the stirring blade.

[0013] The effect achieved by the above-mentioned components is that the diagonal rod, the supporting rod and the stirring blade form a stable triangular structure, thereby improving the stability of the supporting rod and avoiding the shaking of the supporting rod.

[0014] Preferably, auxiliary devices are provided at both ends of the two stirring blades, and the auxiliary devices include two groups of L-shaped plates, which are fixedly connected to the two ends of the two stirring blades respectively, and the side of each group of L-shaped plates close to each other is rotatably connected to the same rotating rod, and the arc surface of the rotating rod is fixedly connected to a gear, and the tank body is fixedly connected to a gear ring at the corresponding gear, and the gear and the gear ring are engaged with each other, and the arc surface of the rotating rod is fixedly connected to two rotating blades.

[0015] The effect achieved by the above components is: during the rotation of the stirring blade, the stirring blade rotates around the stirring shaft with the L-shaped plate and the rotating rod. At this time, the gear on the rotating rod moves on the gear ring, and the gear drives the rotating rod to rotate, and the rotating rod drives the rotating blade to rotate, thereby improving the stirring effect of the stirring blade. The rotating blade set by the auxiliary device not only rotates around the stirring shaft, but also rotates at the same time, thereby improving the stirring effect of the stirring blade, and avoiding the molten raw material inside the tank from being stationary as much as possible, thereby causing the molten raw material to cool down.

[0016] Preferably, a plurality of reserved holes are evenly opened on the surface of the rotating blade, and the plurality of reserved holes are linearly distributed.

[0017] The effect achieved by the above components is that during the rotation of the rotating blades, the molten raw material passes through the reserved holes to increase the flow rate of the molten raw material, thereby improving the stirring effect of the rotating blades.

[0018] Preferably, bearings are provided at both ends of the rotating rod, the outer ring of the bearing is fixedly connected to the L-shaped plate, and the inner ring of the bearing is fixedly connected to the rotating rod.

[0019] The effects achieved by the above components are: by providing the bearing, the stability of the rotation of the rotating rod is improved, and the shaking of the rotating rod is avoided.

[0020] In summary, the beneficial effects of the present invention are as follows:

[0021] When it is necessary to melt the plastic film raw materials, the staff first feeds the raw materials into the interior of the tank through the feed pipe. At this time, the heating pipe heats the tank and the raw materials are melted. The molten raw materials slowly pass through the filter screen into the bottom of the tank and flow out from the discharge pipe. The granular residue remaining in the molten raw materials is blocked. At the same time, the staff drives the stirring shaft and stirring blades to rotate through the motor. The stirring blades stir the molten raw materials to prevent the molten raw materials from being still and cooling. When the stirring blades rotate, the support rods on the stirring blades move to the position of the triangle plate, and the support rods squeeze the inclined surface of the triangle plate. The angle plate moves toward the filter with the slide bar and the knocking block, the spring on the slide bar contracts, and finally the knocking block knocks the filter, causing the filter to shake. When the support rod moves over the triangular plate, the knocking block is reset under the action of the spring reset force. As the support rod repeatedly contacts the triangular plate, the knocking block can continuously knock on the filter, thereby preventing the holes in the filter from being blocked by granular residue. The cleaning device achieves the effect of cleaning the filter, preventing the holes in the filter from being blocked by granular residue, which results in the molten raw material being unable to pass through the filter and the tank body being unable to be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 sectional view of

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the internal parts of the tank body of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the cleaning device of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the auxiliary device of the utility model.

[0027] Legend: 1. Tank body; 2. Feed pipe; 3. Discharge pipe; 4. Heating pipe; 5. Stirring shaft; 6. Stirring blade; 7. Filter; 8. Cleaning device; 81. Support rod; 82. U-shaped plate; 83. Sliding rod; 84. Spring; 85. Knocking block; 86. Triangular plate; 87. Limiting piece; 88. Diagonal rod; 89. Support plate; 810. Rotating part; 9. Auxiliary device; 91. L-shaped plate; 92. Rotating rod; 93. Gear; 94. Gear ring; 95. Rotating blade; 96. Reserved hole; 97. Bearing. DETAILED DESCRIPTION

[0028] Reference Figure 1-5As shown, this embodiment discloses a raw material melting device for plastic film production, including a tank body 1, a feed pipe 2 is fixedly connected to the upper surface of the tank body 1, a discharge pipe 3 is fixedly connected to the arc surface of the tank body 1, a plurality of heating tubes 4 are fixedly connected to the inside of the arc surface of the tank body 1, a stirring shaft 5 is provided inside the tank body 1 with the aid of a motor, two stirring blades 6 are fixedly connected to the arc surface of the stirring shaft 5, a filter screen 7 is fixedly connected to the inside of the tank body 1, the filter screen 7 is located at the bottom of the stirring blade 6, a cleaning device 8 is provided on the upper surface of the filter screen 7, and auxiliary devices 9 are provided at both ends of the two stirring blades 6.

[0029] Reference Figure 1-5 As shown, the cleaning device 8 includes a U-shaped plate 82, the two arms of the U-shaped plate 82 are fixedly connected to the upper surface of the filter screen 7, and a slide rod 83 is provided on the surface of the U-shaped plate 82. One end of the slide rod 83 close to the filter screen 7 is fixedly connected to a knocking block 85, and the arc surface of the slide rod 83 is sleeved with a spring 84. The two ends of the spring 84 are respectively fixedly connected to the U-shaped plate 82 and the knocking block 85. The other end of the slide rod 83 is fixedly connected to a triangular plate 86, and the stirring blade 6 is fixedly connected to the support rod 81 at the triangular plate 86. When it is necessary to melt the plastic film raw material, the staff first feeds the raw material into the interior of the tank body 1 through the feed pipe 2. At this time, the heating pipe 4 heats the tank body 1, and the raw material is melted. The molten raw material slowly passes through the filter screen 7 into the bottom of the tank body 1 and flows out from the discharge pipe 3, while the granular residue remaining in the molten raw material is blocked. At the same time, the staff drives the stirring shaft 5 and the stirring blade 6 to rotate through the motor. The stirring blade 6 stirs the molten raw material to prevent the molten raw material from being stationary and thus cooling. When the stirring blade 6 rotates, the support rod 81 on the stirring blade 6 moves to the position of the triangular plate 86, the support rod 81 squeezes the inclined surface of the triangular plate 86, and the triangular plate 86 carries the sliding rod 83 and the knocking block 85 move toward the direction of the filter screen 7, the spring 84 on the slide bar 83 contracts, and finally the knocking block 85 knocks the filter screen 7, and the filter screen 7 shakes. When the support rod 81 moves over the triangular plate 86, the knocking block 85 is reset under the action of the restoring elastic force of the spring 84. As the support rod 81 repeatedly contacts the triangular plate 86, the knocking block 85 can continuously knock on the filter screen 7, thereby preventing the holes in the filter screen 7 from being blocked by granular residues. The cleaning device 8 achieves the effect of cleaning the filter screen 7, preventing the holes in the filter screen 7 from being blocked by granular residues, which causes the molten raw material to be unable to pass through the filter screen 7 and the tank body 1 to be unable to be used normally.

[0030] Reference Figure 1-5As shown, the arc surface of the slide bar 83 is fixedly connected with a number of limit members 87, and the number of limit members 87 is distributed in a circle. By setting the limit members 87, the effect of limiting the moving direction of the slide bar 83 is achieved, the slide bar 83 is prevented from rotating, and the stability of the movement of the slide bar 83 is improved. One end of the support rod 81 is fixedly connected with a support plate 89, and the two arms of the support plate 89 are rotatably connected with the same rotating member 810. The rotating member 810 on the support plate 89 rotates with the inclined surface of the triangular plate 86, thereby reducing the friction between the support rod 81 and the triangular plate 86, making it convenient for the support rod 81 to move with the triangular plate 86. The arc surface of the support rod 81 is fixedly connected with an inclined rod 88, and one end of the inclined rod 88 is fixedly connected to the stirring blade 6. The inclined rod 88, the support rod 81 and the stirring blade 6 form a stable triangular structure, thereby improving the stability of the support rod 81 and preventing the support rod 81 from shaking.

[0031] Reference Figure 1-5 As shown, the auxiliary device 9 includes two groups of L-shaped plates 91, which are fixedly connected to the two ends of the two stirring blades 6 respectively. The side of each group of L-shaped plates 91 close to each other is rotatably connected to the same rotating rod 92. The arc surface of the rotating rod 92 is fixedly connected to a gear 93. The tank body 1 is fixedly connected to a gear ring 94 corresponding to the gear 93. The gear 93 and the gear ring 94 are meshed with each other. The arc surface of the rotating rod 92 is fixedly connected to two rotating blades 95. During the rotation of the stirring blade 6, the stirring blade 6 rotates around the stirring shaft 5 with the L-shaped plates 91 and the rotating rod 92. At this time, the gear 93 on the rotating rod 92 moves on the gear ring 94. The gear 93 drives the rotating rod 92 to rotate. The rotating rod 92 drives the rotating blade 95 to rotate, thereby improving the stirring effect of the stirring blade 6. The rotating blade 95 provided by the auxiliary device 9 not only rotates around the stirring shaft 5, but also rotates at the same time, thereby improving the stirring effect of the stirring blade 6 and preventing the molten raw material inside the tank body 1 from being stationary, thereby preventing the molten raw material from cooling.

[0032] Reference Figure 1-5 As shown, the surface of the rotating blade 95 is uniformly provided with a plurality of pre-set holes 96, which are distributed linearly. As the rotating blade 95 rotates, the molten material flows through the pre-set holes 96, increasing its flow rate and thereby enhancing the stirring effect of the rotating blade 95. Bearings 97 are provided at both ends of the rotating rod 92. The outer ring of the bearing 97 is fixedly connected to the L-shaped plate 91, and the inner ring of the bearing 97 is fixedly connected to the rotating rod 92. The provision of bearings 97 improves the stability of the rotating rod 92 and prevents it from shaking.

[0033] Working principle: when the plastic film raw material needs to be melted, the worker first sends the raw material into the inside of the tank body 1 through the feeding pipe 2, at this time the heating pipe 4 heats the tank body 1, the raw material is melted, the melted raw material slowly enters the bottom of the tank body 1 through the filter screen 7 and flows out from the discharge pipe 3, while the granular residues in the melted raw material are blocked, at the same time the worker rotates the stirring shaft 5 and the stirring blade 6 by the motor, the stirring blade 6 stirs the melted raw material to avoid the melted raw material from cooling down when the stirring blade 6 rotates, when the supporting rod 81 on the stirring blade 6 moves to the position of the triangular plate 86, the supporting rod 81 extrudes the inclined surface of the triangular plate 86 by means of the rotating part 810 on the supporting plate 89, the triangular plate 86 moves towards the filter screen 7 with the slide rod 83 and the knocking block 85, the spring 84 on the slide rod 83 contracts, and finally the knocking block 85 knocks the filter screen 7, the filter screen 7 shakes, when the supporting rod 81 moves away from the triangular plate 86, the knocking block 85 resets under the action of the reset force of the spring 84, with the continuous repetition of the contact between the supporting rod 81 and the triangular plate 86, the knocking block 85 can continuously knock the filter screen 7, thereby avoiding the holes of the filter screen 7 from being blocked by the granular residues, through the cleaning device 8, the effect of cleaning the filter screen 7 is achieved, avoiding the situation that the holes of the filter screen 7 are blocked by the granular residues, so that the melted raw material cannot pass through the filter screen 7, and the tank body 1 cannot be used normally.

[0034] In the process of rotating the stirring blade 6, the stirring blade 6 rotates around the stirring shaft 5 with the L-shaped plate 91 and the rotating rod 92, at this time the gear 93 on the rotating rod 92 moves on the gear ring 94, the gear 93 rotates with the rotating rod 92, the bearings 97 at both ends of the rotating rod 92 improve the stability of the movement of the rotating rod 92, the rotating rod 92 rotates with the rotating blade 95, thereby improving the stirring effect of the stirring blade 6, the rotating blade 95 set by the auxiliary device 9 not only rotates around the stirring shaft 5, but also rotates, improving the stirring effect of the stirring blade 6, and avoiding the situation that the melted raw material in the tank body 1 is stationary, thereby causing the melted raw material to cool down.

Claims

1. A raw material melting device for producing plastic film, comprising a tank body (1), characterized in that: The upper surface of the tank body (1) is fixedly connected to a feed pipe (2), the arc surface of the tank body (1) is fixedly connected to a discharge pipe (3), the interior of the arc surface of the tank body (1) is fixedly connected to a plurality of heating pipes (4), the interior of the tank body (1) is provided with a stirring shaft (5) by means of a motor, the arc surface of the stirring shaft (5) is fixedly connected to two stirring blades (6), the interior of the tank body (1) is fixedly connected to a filter screen (7), the filter screen (7) is located at the bottom of the stirring blade (6), the upper surface of the filter screen (7) is provided with a cleaning device (8), the cleaning device (8) comprises a U The U-shaped plate (82) has two arms fixedly connected to the upper surface of the filter screen (7), a sliding rod (83) is slidably inserted on the surface of the U-shaped plate (82), one end of the sliding rod (83) close to the filter screen (7) is fixedly connected to a knocking block (85), the arc surface of the sliding rod (83) is sleeved with a spring (84), the two ends of the spring (84) are respectively fixedly connected to the U-shaped plate (82) and the knocking block (85), the other end of the sliding rod (83) is fixedly connected to a triangular plate (86), and the stirring blade (6) is fixedly connected to a support rod (81) at the position corresponding to the triangular plate (86).

2. A raw material melting device for producing plastic film according to claim 1, characterized in that: The arc surface of the slide rod (83) is fixedly connected with a plurality of limiting members (87), and the plurality of limiting members (87) are distributed in a circular pattern.

3. The raw material melting device for plastic film production according to claim 1, characterized in that: One end of the support rod (81) is fixedly connected to a support plate (89), and two arms of the support plate (89) are rotatably connected to the same rotating member (810).

4. The raw material melting device for producing plastic film according to claim 1, characterized in that: The arc surface of the support rod (81) is fixedly connected to an inclined rod (88), and one end of the inclined rod (88) is fixedly connected to the stirring blade (6).

5. The raw material melting device for producing plastic film according to claim 1, characterized in that: Both ends of the two stirring blades (6) are provided with auxiliary devices (9), and the auxiliary devices (9) include two groups of L-shaped plates (91), which are respectively fixedly connected to the two ends of the two stirring blades (6). The sides of each group of L-shaped plates (91) close to each other are rotatably connected to the same rotating rod (92), and the circular arc surface of the rotating rod (92) is fixedly connected to a gear (93). The tank body (1) is fixedly connected to a gear ring (94) corresponding to the gear (93), and the gear (93) and the gear ring (94) are meshed with each other. The circular arc surface of the rotating rod (92) is fixedly connected to two rotating blades (95).

6. A raw material melting device for producing plastic film according to claim 5, characterized in that: A plurality of reserved holes (96) are evenly formed on the surface of the rotating blade (95), and the plurality of reserved holes (96) are linearly distributed.

7. The raw material melting device for producing plastic film according to claim 5, characterized in that: Both ends of the rotating rod (92) are provided with bearings (97), the outer ring of the bearing (97) is fixedly connected to the L-shaped plate (91), and the inner ring of the bearing (97) is fixedly connected to the rotating rod (92).

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