Plastic particle preheating device

Abstract

The utility model discloses a plastic particle preheating device, which relates to the technical field of plastic particle preheating, and comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with two symmetrically arranged support frames, a preheating cylinder for preheating plastic particles is arranged above the bottom plate, and the two support frames are both rotatably connected with the preheating cylinder. A heating wire is installed on the inner wall of the preheating cylinder, and a sealing plate is hinged to the inner wall of the preheating cylinder through a pin shaft. When the plastic particles are preheated, the preheating cylinder for preheating the plastic particles and the stirring rod which is arranged in the preheating cylinder and used for stirring and mixing are driven to rotate reversely, so that high-temperature plastic particles and low-temperature plastic particles are fully mixed, and the heating uniformity and the heat transfer efficiency of the plastic particles are effectively improved; and meanwhile, the plastic particle feeding and discharging port is closed, so that the possibility of heat loss during preheating of the plastic particles is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic particle preheating technical field, specifically a kind of plastic particle preheating device. BACKGROUND

[0002] In order to realize resource recycling, relieve environmental pressure, plastic products will be usually recycled and reprocessed, in order to facilitate subsequent reprocessing process, recycled plastic is usually crushed into recycled plastic particles, and then sent to the next process for processing, when processing recycled plastic, the raw material usually needs to be hot-melted, extruded, granulated and a series of processing, before hot-melting the plastic raw material, the temperature of the plastic is usually improved by preheating device, so that the plastic can be hot-melted sufficiently, and the hot-melting effect is improved.

[0003] The existing plastic particle preheating device usually puts plastic particles into the heating cavity, then heats the heat inside the heating cavity by absorbing heat, to achieve the preheating effect, but this method has a big defect, the plastic particles sticking to the cavity wall have been completely heated, while the plastic particles inside have not reached the required temperature, which can easily lead to uneven heating and reduce the subsequent hot-melting effect, therefore, we provide a plastic particle preheating device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at making up for the deficiency of prior art, and provides a plastic particle preheating device.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a plastic particle preheating device, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with two symmetrically arranged support frames, a preheating cylinder for preheating plastic particles is arranged above the bottom plate, and the two support frames are rotatably connected with the preheating cylinder, heating wires are installed on the inner wall of the preheating cylinder, a closure plate is hingedly connected to the inner wall of the preheating cylinder through a pin shaft, a uniform heating assembly for improving the uniformity of plastic particle preheating is arranged outside the bottom plate, and a limiting assembly for facilitating the opening and closing of the closure plate is arranged.

[0006] Further, the uniform heating assembly comprises a double-output-shaft servo motor installed on the upper surface of the bottom plate, and two tooth rings fixedly connected with the support frames, the two output shaft ends of the double-output-shaft servo motor are fixedly connected with first rotating rods, gears are fixedly connected to the outer surfaces of the two first rotating rods, and the tooth rings are engaged with the gears, the double-output-shaft servo motor is connected to power supply and started, which can drive the two first rotating rods to rotate synchronously in forward and reverse directions, thereby driving the two gears to rotate synchronously in the same direction, and through the meshing action between the tooth rings and the gears, the tooth rings can be driven to rotate, thereby realizing the rotation of the preheating cylinder.

[0007] Further, the uniform heating assembly further comprises two first sprockets fixed with the first rotating rod at the corresponding positions, and a second rotating rod rotationally connected with the preheating cylinder, the outer surface of the second rotating rod is fixedly connected with two second sprockets and a plurality of stirring rods arranged at equal distances, and the first sprocket and the second sprocket are transmissionally connected through a chain, the first sprocket is driven to rotate after the first rotating rod is rotated, and the second sprocket is driven to rotate under the transmission of the chain, and then the stirring rods are driven to rotate through the second rotating rod, so that the plastic particles are stirred and mixed.

[0008] Further, the limiting assembly comprises two first fixed blocks fixed with the sealing plate, and two second fixed blocks fixed with the preheating cylinder, the inner wall of each second fixed block is slidably connected with a limiting rod, and the first fixed block is slidably connected with the limiting rod, the end of each second fixed block away from the first fixed block is fixedly connected with a fixed plate, the outer surface of each limiting rod is sleeved with a reset spring, and the two ends of the reset spring are fixed with the second fixed block and the fixed plate respectively, the limiting rod inserted into the inner wall of the first fixed block and the second fixed block at the same time can realize the limiting and fixing of the sealing plate, and the limiting rod is limited and supported by the fixed plate and the reset spring, so that the limiting rod is prevented from sliding out of the inner wall of the first fixed block and the second fixed block, thereby improving the stability of the limiting and fixing of the sealing plate.

[0009] Further, the upper surface of the bottom plate is fixedly connected with two support blocks, and the support blocks are rotationally connected with the first rotating rod, the first rotating rod can be assisted and supported through the support blocks connected with the bottom plate and the first rotating rod respectively, thereby improving the stability of the first rotating rod during rotation.

[0010] Further, the upper surface of the bottom plate is fixedly connected with two support blocks, and the support blocks are rotationally connected with the first rotating rod, the first rotating rod can be assisted and supported through the support blocks connected with the bottom plate and the first rotating rod respectively, thereby improving the stability of the first rotating rod during rotation.

[0011] Further, the inner wall of the preheating cylinder is rotationally connected with a plurality of cleaning plates for cleaning residual plastic viscous substances, each stirring rod is fixedly connected with a cleaning plate, and the cleaning plate is driven to rotate along the inner wall of the preheating cylinder after the stirring rod is rotated, so that the residual plastic viscous substances on the inner wall of the preheating cylinder are cleaned, and the structural strength of the stirring rod is enhanced by the connecting blocks fixed between adjacent two stirring rods, and the plastic particles are conveniently scattered and mixed.

[0012] Further, the upper surface of the bottom plate is fixedly connected with a support rod, and the top end of the support rod is fixedly connected with a control panel, which can uniformly control the electrical elements in the plastic particle preheating device through the setting of the support rod and the control panel.

[0013] Compared with the prior art, the plastic particle preheating device has the following beneficial effects:

[0014] 1. The utility model discloses a plastic particle preheating device, which can drive the preheating cylinder for preheating plastic particles and the stirring rod inside the preheating cylinder for stirring and mixing to rotate reversely when preheating plastic particles, so that high-temperature plastic particles and low-temperature plastic particles are fully mixed, the heating uniformity of plastic particles and the heat transfer efficiency are effectively improved, the purpose of uniform preheating is achieved, the subsequent hot melting effect is guaranteed, and the plastic particle feeding and discharging openings are closed to reduce the possibility of heat loss during preheating of plastic particles.

[0015] 2. The utility model discloses a plastic particle preheating device, which can assist and support the first rotating rod through the setting of the support block, improve the stability of the first rotating rod during rotation, move the plastic particle preheating device through the setting of the fixed frame, the electric push rod and the moving wheel, clean the plastic viscous substances remaining on the inner wall of the preheating cylinder through the setting of the cleaning plate, uniformly control the electrical elements in the plastic particle preheating device through the setting of the support rod and the control panel, rotate the closing plate through the setting of the connecting rod, and enhance the structural strength of the stirring rod through the setting of the connecting block and facilitate the scattering and mixing of plastic particles. BRIEF DESCRIPTION OF DRAWINGS

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

[0017] Figure 2 It is a right view schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 It is a front view sectional view of the three-dimensional structure of the utility model;

[0019] Figure 4 It is a local structure schematic diagram of the uniform heating assembly of the utility model;

[0020] Figure 5 It is a local structure explosion schematic diagram of the utility model;

[0021] Figure 6 It is a local structure sectional view of the utility model.

[0022] In the figure: 1, the bottom plate; 2, support frame; 3, preheating cylinder; 4, heating wire; 5, closing plate; 601, double output shaft servo motor; 602, gear ring; 603, first rotating rod; 604, gear; 605, first sprocket; 606, second rotating rod; 607, stirring rod; 608, second sprocket; 701, first fixed block; 702, second fixed block; 703, limiting rod; 704, fixed plate; 705, return spring; 8, support block; 9, fixed frame; 10, electric push rod; 11, moving wheel; 12, cleaning plate; 13, support rod; 14, control panel; 15, connecting rod; 16, connecting block. DETAILED DESCRIPTION

[0023] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.

[0024] As described in the background, the existing plastic particle preheating device is usually put into the heating cavity when in use, and then the heat inside the heating cavity is absorbed to achieve the preheating effect, but this method has a big defect, the plastic particles attached to the cavity wall have been completely heated, while the plastic particles inside have not reached the required temperature, which easily leads to uneven heating and reduces the subsequent hot melting effect, therefore, the present embodiment provides a plastic particle preheating device.

[0025] Referring to Figures 1 to 6 The present embodiment provides a plastic particle preheating device, which comprises a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected with two symmetrically arranged support frames 2, an upper portion of the bottom plate 1 is provided with a preheating cylinder 3 for preheating plastic particles, and the two support frames 2 are both rotationally connected with the preheating cylinder 3, the inner wall of the preheating cylinder 3 is installed with a heating wire 4, and the inner wall of the preheating cylinder 3 is hingedly connected with a closing plate 5 through a pin shaft.

[0026] The two support frames 2 fixed on the upper surface of the bottom plate 1 can assist in supporting the preheating cylinder 3, and the preheating cylinder 3 is divided into an inner layer and an outer layer, the heating wire 4 is installed in the outer layer space, and the inner layer space is used for preheating plastic particles, the heating wire 4 is connected to the power supply, which can generate heat and transfer to the plastic particles in the inner layer space, thereby realizing the preheating of the plastic particles, and the closing plate 5 can close the feeding and discharging openings on the preheating cylinder 3, thereby reducing the possibility of heat loss during preheating of the plastic particles.

[0027] The upper surface of the bottom plate 1 is fixedly connected with four fixed frames 9, the inner wall of each fixed frame 9 is installed with an electric push rod 10, the telescopic end of each electric push rod 10 is fixedly connected with a moving wheel 11, the electric push rod 10 is connected with power supply and started, the telescopic end is telescopic, the moving wheel 11 can be driven to move up and down, when the moving wheel 11 moves down to contact with the ground and continues to move, the bottom plate 1 can be lifted up under the obstruction of the fixed frame 9, so that the plastic particle preheating device can be conveniently moved.

[0028] When the plastic particle preheating device is moved, the moving wheel 11 can be retracted into the fixed frame 9 through the electric push rod 10, the bottom surface of the bottom plate 1 contacts with the ground, so that the use position of the plastic particle preheating device is limited.

[0029] The outer part of the bottom plate 1 is provided with a uniform heating assembly for improving the uniformity of plastic particle preheating, and a limiting assembly for facilitating the opening and closing of the sealing plate 5, the uniform heating assembly comprises a double-output-shaft servo motor 601 installed on the upper surface of the bottom plate 1 and two tooth rings 602 fixedly connected with the support frame 2, the two output shaft ends of the double-output-shaft servo motor 601 are fixedly connected with first rotating rods 603, the outer surfaces of the two first rotating rods 603 are fixedly connected with gears 604, and the tooth rings 602 are engaged with the gears 604.

[0030] The double-output-shaft servo motor 601 is connected with power supply and started, the two first rotating rods 603 can be driven to rotate synchronously in forward and reverse directions, so that the two gears 604 are driven to rotate synchronously in the same direction, and through the meshing action between the tooth rings 602 and the gears 604, the tooth rings 602 can be driven to rotate, and the preheating cylinder 3 is driven to rotate.

[0031] The upper surface of the bottom plate 1 is fixedly connected with two support blocks 8, and the support blocks 8 are rotatably connected with the first rotating rods 603, through the support blocks 8 connected with the bottom plate 1 and the first rotating rods 603 respectively, the first rotating rods 603 can be assisted to support, so that the stability of the first rotating rods 603 during rotation is improved.

[0032] The uniform heating assembly further comprises two first sprockets 605 fixed with the first rotating rods 603 at corresponding positions, and a second rotating rod 606 rotatably connected with the preheating cylinder 3, the outer surface of the second rotating rod 606 is fixedly connected with two second sprockets 608 and a plurality of stirring rods 607 arranged at equal distances, and the first sprockets 605 and the second sprockets 608 are connected through a chain transmission.

[0033] After the first rotating rod 603 rotates, the first sprocket 605 can be driven to rotate, and through the transmission of the chain, the second sprocket 608 can be driven to rotate, and then the stirring rod 607 can be driven to rotate through the second rotating rod 606, so that the plastic particles can be stirred and mixed.

[0034] The inner wall of the preheating cylinder 3 is rotationally connected with a plurality of cleaning plates 12 for cleaning the residual plastic viscous matter, each stirring rod 607 is fixedly connected with the cleaning plate 12, the stirring rod 607 can drive the cleaning plate 12 to rotate along the inner wall of the preheating cylinder 3 after rotation, so that the residual plastic viscous matter on the inner wall of the preheating cylinder 3 is cleaned, and the connecting block 16 is fixedly connected between the adjacent two stirring rods 607, the structure strength of the stirring rod 607 is enhanced by using the connecting block 16, and the plastic particles are conveniently scattered and mixed.

[0035] The limiting assembly comprises two first fixed blocks 701 fixedly connected with the closing plate 5 and two second fixed blocks 702 fixedly connected with the preheating cylinder 3, the inner wall of each second fixed block 702 is slidingly connected with a limiting rod 703, the first fixed block 701 is slidingly connected with the limiting rod 703, one end of each second fixed block 702 away from the first fixed block 701 is fixedly connected with a fixed plate 704, and the outer surface of each limiting rod 703 is sleeved with a reset spring 705, and the two ends of the reset spring 705 are fixedly connected with the second fixed block 702 and the fixed plate 704.

[0036] The limiting rod 703 inserted into the inner walls of the first fixed block 701 and the second fixed block 702 can realize the limiting and fixing of the closing plate 5, and the limiting rod 703 is limited and supported by the fixed plate 704 and the reset spring 705, so that the limiting rod 703 is prevented from sliding out of the inner walls of the first fixed block 701 and the second fixed block 702, thereby improving the stability of the limiting and fixing of the closing plate 5.

[0037] The two first fixed blocks 701 are fixedly connected with a connecting rod 15, and the connecting rod 15 can conveniently enable the user to rotate the closing plate 5 through the first fixed block 701, thereby improving the convenience in use.

[0038] The upper surface of the bottom plate 1 is fixedly connected with a supporting rod 13, and the top end of the supporting rod 13 is fixedly connected with a control panel 14, the supporting rod 13 and the control panel 14 can conveniently uniformly control the electric elements in the plastic particle preheating device, thereby improving the convenience in use, and the specific installation position of the control panel 14 can be selected according to actual use requirements, and the operator can operate and control.

[0039] The components in the drawings of the utility model are only used as style reference, and no specific size standard is given, and the specific size is determined according to the actual production requirements, and the materials of the components can be replaced according to actual needs.

[0040] The various electrical elements in the utility model are conventional equipment known to those skilled in the art and can be selected or customized according to actual needs, and the setting mode, installation mode and electrical connection mode can be debugged according to the requirements of the instruction manual, and thus will not be described in detail here.

[0041] Working principle: when the plastic particle preheating device is used, the two fixed plates 704 can be pulled reversely, so as to drive the limiting rod 703 to slide in the inner walls of the first fixed block 701 and the second fixed block 702, stretch the reset spring 705, and make it produce elastic deformation, until the limiting rod 703 is completely slid out of the inner wall of the first fixed block 701, so as to release the limiting fixing of the first fixed block 701, and then open the closing plate 5, then add the plastic particles into the inner space of the preheating cylinder 3, then close the closing plate 5, and insert the limiting rod 703 into the inner walls of the first fixed block 701 and the second fixed block 702 to realize the limiting fixing of the closing plate 5, so as to close the inlet and outlet of the preheating cylinder 3, so as to reduce the possibility of heat loss of the plastic particles during preheating, then connect the heating wire 4 to the power supply, so as to generate heat and transfer to the plastic particles in the inner space, so as to realize the preheating of the plastic particles, then connect the double-output shaft servo motor 601 to the power supply and start, so as to drive the two first rotating rods 603 to rotate synchronously and in the same direction, so as to drive the two gears 604 to rotate synchronously and in the same direction, and through the meshing action between the gear ring 602 and the gear 604, the gear ring 602 can be reversely rotated, so as to realize the rotation of the preheating cylinder 3 in the inner wall of the supporting frame 2, at the same time, the rotation of the first rotating rod 603 can drive the first sprocket 605 to rotate, and under the transmission action of the chain, the second sprocket 608 can be driven to rotate, then the second rotating rod 606 drives the stirring rod 607 to rotate, and the rotating direction and rotating speed of the preheating cylinder 3 and the stirring rod 607 are different, so that the high-temperature plastic particles and low-temperature plastic particles in the preheating cylinder 3 can be fully stirred and mixed, and the heating uniformity and heat transfer efficiency of the plastic particles can be effectively improved, so as to achieve the purpose of uniform preheating, and then ensure the subsequent hot melting effect.

Claims

1. A plastic particle preheating device comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected with two symmetrically arranged supporting frames (2), a preheating cylinder (3) for preheating plastic particles is arranged above the bottom plate (1), and the two supporting frames (2) are rotationally connected with the preheating cylinder (3), the inner wall of the preheating cylinder (3) is provided with heating wires (4), the inner wall of the preheating cylinder (3) is hingedly connected with a closing plate (5) through a pin shaft, the outer portion of the bottom plate (1) is provided with a uniform heating assembly for improving the uniformity of preheating plastic particles, and a limiting assembly for facilitating opening and closing of the closing plate (5) is arranged.

2. A plastic particle preheating device according to claim 1, characterized in that: The uniform heating assembly comprises a double-output-shaft servo motor (601) mounted on the upper surface of the bottom plate (1), and two toothed rings (602) fixedly connected with the supporting frames (2), the two output shaft ends of the double-output-shaft servo motor (601) are fixedly connected with first rotating rods (603), the outer surfaces of the two first rotating rods (603) are fixedly connected with gears (604), and the toothed rings (602) are engaged with the gears (604).

3. A plastic particle preheating device as claimed in claim 1, characterized in that: The uniform heating assembly further comprises two first sprockets (605) fixed with the first rotating rods (603) at corresponding positions, and a second rotating rod (606) rotationally connected with the preheating cylinder (3), the outer surface of the second rotating rod (606) is fixedly connected with two second sprockets (608) and a plurality of stirring rods (607) arranged at equal distances, and the first sprockets (605) and the second sprockets (608) are connected through a chain transmission.

4. A plastic particle preheating device as claimed in claim 1, characterized in that: The limiting assembly comprises two first fixed blocks (701) fixedly connected with the closing plate (5), and two second fixed blocks (702) fixedly connected with the preheating cylinder (3), the inner wall of each second fixed block (702) is slidingly connected with a limiting rod (703), the first fixed block (701) is slidingly connected with the limiting rod (703), one end of each second fixed block (702) away from the first fixed block (701) is fixedly connected with a fixed plate (704), the outer surface of each limiting rod (703) is sleeved with a return spring (705), and the two ends of the return spring (705) are fixedly connected with the second fixed block (702) and the fixed plate (704) respectively.

5. A plastic particle preheating device as claimed in claim 2, characterized in that: The upper surface of the bottom plate (1) is fixedly connected with two supporting blocks (8), and the supporting blocks (8) are rotationally connected with the first rotating rods (603).

6. A plastic particle preheating device as claimed in claim 1, characterized in that: The inner wall of each fixed frame (9) is provided with an electric push rod (10), and the telescopic end of each electric push rod (10) is fixedly connected with a moving wheel (11).

7. A plastic particle preheating device as claimed in claim 3, characterized in that: The inner wall of the preheating cylinder (3) is rotationally connected with a plurality of cleaning plates (12) for cleaning residual plastic viscous substances, each stirring rod (607) is fixedly connected with a cleaning plate (12), and a connecting block (16) is fixedly connected between adjacent two stirring rods (607).

8. A plastic particle preheating device as claimed in claim 4, characterized in that: The upper surface of the bottom plate (1) is fixedly connected with a support rod (13), the top end of the support rod (13) is fixedly connected with a control panel (14), and two first fixed blocks (701) are fixedly connected with a connecting rod (15).

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