Raw material preheating and drying device for plastic product manufacturing

Abstract

The utility model relates to a drying device, in particular to a raw material preheating and drying device for plastic product manufacturing. The raw material preheating and drying device for manufacturing the plastic products comprises a bottom frame, a box body, a controller, a cover, a motor, a spline shaft, a spiral feeder and a sieve shaker, the box body is fixedly connected to the bottom frame, the controller is installed on the front portion of the box body, the cover is rotationally connected to the upper portion of the box body, the motor is installed at the bottom of the box body, and the motor is electrically connected with the controller. A spline shaft is slidably clamped on an output shaft of the motor, a spiral feeder is fixedly connected to the spline shaft, and a sieve shaker is placed on the upper portion of the box body. Through the box body, the controller and the heating pipe, the product achieves the preheating effect, then the motor is started through the controller, and the output shaft of the motor drives the spline shaft and the spiral feeder to rotate, so that plastic raw materials are heated more sufficiently.

Description

Technical Field

[0001] The utility model relates to a drying device, in particular to a raw material preheating and drying device for manufacturing plastic products. Background Art

[0002] Plastic raw material is a polymer, also known as high molecule or macromolecule, also commonly known as plastic or resin. It is a kind of synthetic resin. Its shape is similar to pine resin in natural resin, but because it is synthesized by chemical forces, it is called plastic. This polymer is composed of many smaller and simple molecules, which are combined by covalent bonds. There are many types of polymers. Because their macromolecules contain hydrophilic groups, they are easy to absorb moisture. If the moisture content exceeds the allowable value, silver wire, bubbles, shrinkage holes and other defects will appear on the surface of the product. In severe cases, it will cause degradation of the raw materials, affecting the appearance and internal quality of the products. Therefore, these plastic raw materials must be preheated and dried before molding. There are many methods for drying plastic raw materials, such as hot air circulation drying, infrared heating drying and airflow drying.

[0003] The existing preheating method is to directly pour the plastic raw materials into the preheating machine for direct preheating. However, due to the low thermal conductivity between the gas and the plastic raw materials, between the plastic raw materials and within the plastic raw materials during convection heating, the heat conduction is greatly limited. In particular, when the plastic raw materials are heavily clumped before preheating, it is difficult to completely dry them. In addition, due to the low thermal conductivity of the plastic raw materials, when the plastic raw materials clumped during preheating, the heat was applied only to the outside, and the outside of the raw materials was softened by the high temperature while the inside may not be affected.

[0004] Therefore, it is necessary to design a raw material preheating and drying device for manufacturing plastic products. Utility Model Content

[0005] In order to overcome the shortcomings of large clumps of plastic raw materials before preheating and difficult to dry, and the outer sides of the plastic raw materials being softened while the inner sides are not affected, the technical problem of the utility model is to provide a raw material preheating and drying device for manufacturing plastic products.

[0006] Technical solution: A raw material preheating and drying device for manufacturing plastic products, including a base frame, a box body, a controller, a cover, a motor, a spline shaft, a spiral feed, a screen shaker, a second spring, a heating tube and a collection frame. The base frame is fixedly connected to the base frame, the front of the box body is installed with a controller, the upper part of the box body is rotatably connected with a cover, the bottom of the box body is installed with a motor, the motor is electrically connected to the controller, a spline shaft is slid and clamped on the output shaft of the motor, a spiral feeder is fixed on the spline shaft, a screen shaker is placed on the upper part of the box body, a plurality of second springs are circumferentially fixed between the screen shaker and the box body, heating tubes are symmetrically installed on the inner wall of the box body, the heating tubes are electrically connected to the controller, a blanking port is opened at the bottom of the box body, a collection frame is slidably placed on the groove of the base frame, and the collection frame is located below the blanking port.

[0007] Furthermore, the bottom of the box is inclined.

[0008] Furthermore, it also includes a first spring, a protruding rod and a guide ring. The first spring is fixed between the motor output shaft and the spline shaft. A plurality of protruding rods are fixed to the lower end of the spline shaft. The guide ring is fixed to the lower part of the box body, and the protruding rods are in contact with the guide ring.

[0009] Furthermore, the screen is divided into two layers, the lower layer screen density is smaller than the upper layer.

[0010] Furthermore, it also includes a top block, an impact ball, a guide plate and a discharge pipe. The top block is fixedly connected to the upper part of the spline shaft, a plurality of impact balls are provided on the upper layer of the screen, a guide plate is fixedly connected to the inner wall of the lower layer of the screen, and the rear side of the box is connected and communicated with the discharge pipe, and the discharge pipe is communicated with the lower layer of the screen.

[0011] Furthermore, the overall material is made of stainless steel.

[0012] Beneficial effects: 1. The utility model achieves the preheating effect of the product through the box, controller and heating tube, and then starts the motor through the controller, and the motor output shaft drives the spline shaft and spiral feed to rotate, so that the plastic raw materials are heated more fully.

[0013] 2. The utility model drives the spline shaft and the convex rod to rotate through the motor output shaft. The convex rod drives the spline shaft up and down on the guide ring, so that the plastic raw materials are vibrated and stuck together during the preheating process. At the same time, the top block pushes the screen upward to shake the plastic raw materials stuck together. The vibration shakes the plastic raw materials apart and drops them downward through the screen, which is better for preheating.

[0014] 3. The utility model has two layers of screen shaking, and the density of the lower screen is less than that of the upper layer. The impact balls in the upper layer will scatter the plastic raw materials. The plastic raw materials that are shaken and scattered by vibration will fall down through the screen, while the plastic raw materials that cannot be shaken out will be discharged from the box through the guide plate and the discharge pipe.

[0015] 4. The overall material of this utility model is made of stainless steel, which makes the product more evenly heated during the preheating process of the plastic raw materials and more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a three-dimensional structural diagram of the motor, spline shaft, top block and other components of the utility model.

[0018] Figure 3 It is a three-dimensional structural diagram of the components such as the heating tube, collecting frame and blanking port of the utility model.

[0019] Figure 4 It is a three-dimensional structural diagram of the spline shaft, the first spring, the cam and other components of the utility model.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the impact ball, guide plate and discharge pipe components of the utility model.

[0021] Markings in the accompanying drawings: 1_base frame, 2_box, 3_controller, 4_cover, 5_motor, 6_spline shaft, 601_first spring, 602_protruding rod, 603_guide ring, 7_top block, 8_spiral feed, 9_screen shaker, 10_second spring, 11_heating tube, 12_collecting frame, 13_dropping port, 14_impact ball, 15_guide plate, 16_discharge pipe. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear in this document are based solely on the accompanying drawings and are not intended to limit the present invention.

[0023] Embodiment: A device for preheating and drying raw materials for manufacturing plastic products, such as Figure 1-Figure 5As shown, it includes a base frame 1, a box body 2, a controller 3, a cover 4, a motor 5, a spline shaft 6, a spiral feed 8, a sieve shaker 9, a second spring 10, a heating tube 11 and a collection frame 12. The base frame 1 is fixedly connected to the box body 2 by screws, the controller 3 is installed on the front of the box body 2 by screws, the top of the box body 2 is rotatably connected to the cover 4, the bottom of the box body 2 is installed with a motor 5 by screws, the motor 5 is electrically connected to the controller 3, the spline shaft 6 slides and is clamped on the output shaft of the motor 5, and a spiral feed 8 is welded on the spline shaft 6, a sieve shaker 9 is placed on the upper part of the box body 2, four second springs 10 are welded circumferentially between the sieve shaker 9 and the box body 2, the heating tube 11 is symmetrically installed on the left and right inner walls of the box body 2 by screws, the heating tube 11 is electrically connected to the controller 3, a blanking port 13 is opened at the bottom of the box body 2, a collection frame 12 is slidably placed in the groove of the base frame 1, and the collection frame 12 is located below the blanking port 13, and the bottom of the box body 2 is inclined.

[0024] Before using this device, the heating tube 11 is first started by the controller 3, so that the box body 2 itself starts to preheat first, and then the lid 4 is pulled forward to open the lid 4 clockwise, and then the plastic raw material is poured into the sieve 9. Since the box body 2 is preheated first, the damp and agglomerated plastic raw material gradually loses excess moisture in the box body 2 and becomes dry, so that the agglomerated plastic raw material can naturally disperse into small pieces. During the pouring process, the second spring 10 is compressed by the sudden influence of gravity, and then recovers to produce vibration, vibrating the plastic raw material into particles and dropping it onto the spiral feed 8. Then the motor 5 is started by the controller 3, and the output shaft of the motor 5 drives the spline shaft 6 and the spiral feed 8 to rotate. While the plastic raw material is preheated on the spiral feed 8, the spiral feed 8 also transmits the plastic raw material downward at a uniform speed until the plastic raw material finally reaches the bottom of the box body 2, and the bottom of the box body 2 is inclined toward the drop port 13, and the preheated plastic raw material falls into the collection frame 12 through the drop port 13.

[0025] like Figure 1 and Figure 4 As shown, it also includes a first spring 601, a protruding rod 602 and a guide ring 603. The first spring 601 is welded between the output shaft of the motor 5 and the spline shaft 6. Three protruding rods 602 are welded at the lower end of the spline shaft 6. A guide ring 603 is welded at the lower part of the box body 2, and the protruding rod 602 is in contact with the guide ring 603.

[0026] like Figure 1 、 Figure 2 and Figure 5As shown, it also includes a top block 7, an impact ball 14, a guide plate 15 and a discharge pipe 16. The top block 7 is welded on the top of the spline shaft 6. Two impact balls 14 are provided on the upper layer of the screen shaker 9. The guide plate 15 is welded on the inner wall of the lower layer of the screen shaker 9. The rear side of the box body 2 is connected and communicated with the discharge pipe 16, and the discharge pipe 16 is communicated with the lower layer of the screen shaker 9. The screen shaker 9 is divided into two layers, and the density of the lower screen is less than that of the upper layer. The overall material is stainless steel.

[0027] Since there are still small pieces of plastic raw materials that are naturally scattered, and there may also be small pieces of plastic raw materials due to the vibration generated by the plastic raw materials when pouring, when the output shaft of the motor 5 drives the spline shaft 6 to rotate, the multiple protruding rods 602 at the lower end all move along the guide ring 603, driving the spline shaft 6, the spiral feed 8 and the top block 7 to fluctuate up and down. When the spiral feed 8 fluctuates up and down, it vibrates the plastic raw materials to prevent them from sticking to the spiral feed 8 and can also better preheat the plastic raw materials. When the top block 7 fluctuates up and down, it contacts the screen shaker 9 and pushes the screen shaker 9 to shake it, so that the clumped plastic raw materials are better shaken out. In order to better preheat the plastic raw materials, the screen shaker 9 is divided into two layers, and the lower layer The density of the screen is lower than that of the upper layer. When the screen shakes, the multiple impact balls 14 on the upper layer of the screen 9 also vibrate. The impact balls 14 will collide with each other during vibration, breaking up the harder plastic raw materials, and then fall into the lower layer of the screen for sorting. The plastic raw materials that cannot pass through are discharged from the box 2 along the guide plate 15 and the discharge pipe 16. The staff needs to place a collection bucket under the discharge pipe 16 to collect the plastic raw materials that cannot pass through for secondary utilization. After preheating is completed, the motor 5 and the heating tube 11 are turned off by the controller 3, and then the lid 4 is pushed backward to close the lid 4 counterclockwise. The overall material is made of stainless steel, which makes this product more evenly heated during the preheating process of the plastic raw materials and more durable.

[0028] Although the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A device for preheating and drying raw materials for manufacturing plastic products, characterized by: The invention comprises a base frame (1), a box body (2), a controller (3), a cover (4), a motor (5), a spline shaft (6), a spiral feeder (8), a screen shaker (9), a second spring (10), a heating tube (11) and a collecting frame (12); the base frame (1) is fixed with the box body (2); the front of the box body (2) is provided with a controller (3); the upper part of the box body (2) is rotatably connected with the cover (4); the bottom of the box body (2) is provided with a motor (5); the motor (5) is electrically connected to the controller (3); the output shaft of the motor (5) slides upwards A spline shaft (6) is movable and clamped, a spiral feeder (8) is fixed on the spline shaft (6), a screen shaker (9) is placed on the upper part of the box body (2), a plurality of second springs (10) are fixedly connected between the screen shaker (9) and the box body (2) along the circumferential direction, a heating tube (11) is symmetrically installed on the inner wall of the box body (2), the heating tube (11) is electrically connected to the controller (3), a blanking port (13) is opened at the bottom of the box body (2), a collecting frame (12) is slidably placed in the groove of the bottom frame (1), and the collecting frame (12) is located below the blanking port (13).

2. The raw material preheating and drying device for manufacturing plastic products according to claim 1, characterized in that: The bottom of the box body (2) is inclined.

3. The raw material preheating and drying device for manufacturing plastic products according to claim 2, characterized in that: The invention also includes a first spring (601), a protruding rod (602) and a guide ring (603). The first spring (601) is fixedly connected between the output shaft of the motor (5) and the spline shaft (6). A plurality of protruding rods (602) are fixedly connected to the lower end of the spline shaft (6). The guide ring (603) is fixedly connected to the lower inner portion of the box body (2), and the protruding rods (602) are in contact with the guide ring (603).

4. The raw material preheating and drying device for manufacturing plastic products according to claim 3, characterized in that: The screen shaker (9) is divided into two layers, the lower layer screen density is less than the upper layer.

5. The device for preheating and drying raw materials for manufacturing plastic products according to claim 4, characterized in that: The utility model also comprises a top block (7), an impact ball (14), a guide plate (15) and a discharge pipe (16); the top block (7) is fixedly connected to the upper part of the spline shaft (6); a plurality of impact balls (14) are provided on the upper layer of the sieve shaker (9); a guide plate (15) is fixedly connected to the inner wall of the lower layer of the sieve shaker (9); the rear side of the box body (2) is connected and communicated with the discharge pipe (16), and the discharge pipe (16) is communicated with the lower layer of the sieve shaker (9).

6. The device for preheating and drying raw materials for manufacturing plastic products according to claim 5, characterized in that: The overall material is stainless steel.

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