Weighing tank for waste plastic recovery

Abstract

The utility model provides a weighing tank for recycling waste plastics, and belongs to the technical field of weighing and metering. Comprising a tank body, a discharging assembly is arranged at the bottom of the tank body, a valve is arranged at the output end of the discharging assembly, a controller is installed on one side of the tank body, a supporting weighing assembly is arranged on the side portion of the tank body, a hopper frame is installed on the top of the tank body, and a receiving hopper is installed in the middle of the hopper frame. A guide cavity pipe is arranged at the bottom of the receiving hopper, a rotating cavity pipe is arranged at the bottom of the guide cavity pipe, a partition plate is arranged in the middle of the tank body, and a first motor is fixedly mounted at the top of the partition plate. The device has the advantages that the rotating cavity pipe is controlled to rotate through the first motor, when plastic particles are discharged from one cavity, the external conveying device still continues to work to discharge the plastic particles into the other cavity, stored material weighing and quantitative material discharging are completed at the same time, and the efficiency of material conveying and weighing of the external conveying device without shutdown is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of weight measurement and specifically relates to a weight tank for recycling waste plastics. Background Art

[0002] As the global crude oil price rises, the price of plastic products, as one of the petroleum derivatives, naturally rises, and the recycling of waste plastics has also been put in the first place. The recycling and reuse of waste plastics has been widely adopted by modern chemical companies. After manual screening and classification, waste plastics must also go through processes such as crushing, granulation, and modification to become various transparent and opaque plastic particles, and then be classified according to their appearance, and finally become recycled materials that can be reused. After the waste plastics are crushed into particles and mixed with additives, they are sent to the plasticizing equipment for plasticization by the feeding device. Plastics need to be weighed quantitatively using a weighing tank during processing.

[0003] A plasticizing tank weighing device disclosed in Chinese patent CN204725703U accurately controls the weight of waste rubber particles in a vacuum hopper through three weighing modules. The amount of material put into the plasticizing tank is the same each time, so that the plasticizing time and process of each batch of products can be constant, thereby improving the degree of automation of product production. While solving the problem, the plasticizing tank weighing device has the following defects:

[0004] The device completes weighing after filling the vacuum hopper, and then opens the electric butterfly valve to put the material into the plasticizing tank. The vacuum hopper can only discharge after feeding and weighing, and cannot feed during discharge, which makes the weighing efficiency low. Utility Model Content

[0005] The technical problem to be solved by the utility model is that materials cannot be fed during discharging, resulting in low weighing efficiency. Aiming at the deficiencies of the prior art, a weighing tank for recycling waste plastics is provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] It includes a tank body, a discharge assembly is provided at the bottom of the tank body, a valve is provided at the output end of the discharge assembly, a controller is installed on one side of the tank body, a supporting weighing assembly is provided on the side of the tank body, a bucket frame is installed on the top of the tank body, a receiving bucket is installed in the middle of the bucket frame, a guide cavity is provided at the bottom of the receiving bucket, a rotating cavity is provided at the bottom of the guide cavity, a partition plate is provided in the middle of the tank body, the partition plate divides the tank body into chamber A and chamber B, and a first motor is fixedly installed on the top of the partition plate, and the first motor is used to control the outlet at the bottom end of the rotating cavity to face chamber A or chamber B.

[0008] Furthermore, a rotating shaft is fixedly connected to the side of the rotating cavity tube, a rotating frame is fixedly installed on the top of the partition plate, the rotating shaft is rotatably arranged inside the rotating frame, and the output end of the first motor is fixedly installed with the rotating shaft.

[0009] Furthermore, the first motor is a stepping motor with a self-locking function.

[0010] Furthermore, two groups of discharge components are fixedly connected to the bottom of the tank along the partition plate, and the bottom of the discharge component is inclined.

[0011] Furthermore, the supporting weighing assembly includes a supporting frame arranged on the side of the tank body, a weighing sensor is installed on the top of the supporting frame, a weighing plate is fixedly installed on the side of the tank body, and the weighing plate and the weighing sensor are fixedly installed.

[0012] Furthermore, a second motor is fixedly mounted on one side of the tank body, and a shock block is mounted on the output end of the second motor.

[0013] Furthermore, a shaft body is installed inside the tank body, and the partition plate is sleeved on the outside of the shaft body. The partition plate is rotatably arranged inside the tank body through the shaft body.

[0014] Furthermore, a spring frame is provided on the front side of the tank body, a return spring is fixedly installed on one side of the spring frame, a guide slide groove is provided on one side of the tank body, a sliding shaft is rotatably provided on one side of the partition plate, the sliding shaft is slidably connected to the inside of the guide slide groove, and one end of the return spring is installed on the sliding shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The first motor controls the rotation of the rotating cavity tube. When the plastic particles are discharged from one chamber, the external conveying device continues to work to discharge the plastic particles into another chamber, and at the same time completes the material weighing and quantitative discharge. The external conveying device has a higher efficiency in conveying materials without stopping.

[0017] 2. Start the second motor and make it vibrate through the vibration block, thereby driving the entire tank body to vibrate, so that the particles in the guide cavity, the rotating cavity and the discharge component are quickly discharged to avoid blockage, making the storage and discharge of materials smoother.

[0018] 3. Setting up two chambers to store and discharge materials makes the design volume of the tank larger. The movable partition plate can adjust the relative space between chamber A and chamber B, improve the space utilization inside the double chambers of the tank, reduce the overall design volume of the tank, and improve the space utilization of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Figure 1 : A three-dimensional structural diagram of Example 1 of the utility model;

[0021] Figure 2 : A schematic diagram of the cross-section structure of Embodiment 1 of the present invention;

[0022] Figure 3 : A three-dimensional structural diagram of Example 3 of the present utility model;

[0023] Figure 4 : A schematic diagram of the cross-section structure of Embodiment 3 of the present invention;

[0024] Figure 5 : Schematic diagram of the structure of the second motor and the seismic block decomposed in Example 2 of the utility model.

[0025] Among them, 10, tank body; 101, chamber A; 102, chamber B; 11, bucket frame; 12, receiving bucket; 13, guide cavity tube; 14, rotating cavity tube; 15, partition plate; 16, first motor; 17, shaft body; 20, rotating shaft; 21, rotating frame; 30, discharge assembly; 31, valve; 40, controller; 50, support weighing assembly; 51, support frame; 52, weighing sensor; 53, weighing plate; 60, spring frame; 61, reset spring; 62, guide slide groove; 63, slide shaft; 70, second motor; 71, shock block. DETAILED DESCRIPTION

[0026] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0027] Example 1: See Figure 1-2The present embodiment is a weighing tank for recycling waste plastics, which includes a tank body 10, a discharge assembly 30 is arranged at the bottom of the tank body 10, a valve 31 is arranged at the output end of the discharge assembly 30, a controller 40 is installed on one side of the tank body 10, and a supporting weighing assembly 50 is arranged on the side of the tank body 10. The supporting weighing assembly 50 is used for weighing. When the set weight is reached, the controller 40 controls the valve 31 corresponding to the chamber to open and discharge the tank body 10 for processing, and closes the valve 31 when the discharge is completed. A bucket frame 11 is installed on the top of the tank body 10, and a receiving bucket 12 is installed in the middle of the bucket frame 11. The plastic particles are transported to the receiving bucket 12 by an external conveying device, and a guide cavity 13 is arranged at the bottom of the receiving bucket 12. A rotating cavity 14 is arranged at the bottom of the guide cavity 13. The tank A partition plate 15 is provided in the middle of the tank body 10, and the partition plate 15 divides the tank body 10 into chamber A 101 and chamber B 102, and then enters chamber A 101 or chamber B 102 in the tank body 10 through the guide cavity 13 and the rotating cavity 14. A first motor 16 is fixedly installed on the top of the partition plate 15, and the first motor 16 is used to control the outlet at the bottom end of the rotating cavity 14 to face chamber A 101 or chamber B 102. The discharge speed of the discharge component 30 is greater than the input speed of the material in the rotating cavity 14. When the cavity being discharged reaches the set weight, the controller 40 controls the first motor 16 to start, and the first motor 16 drives the rotating cavity 14 to rotate, so that the outlet at the bottom end of the rotating cavity faces another empty cavity, and the material is discharged into the other cavity.

[0028] See also Figure 1-2 A rotating shaft 20 is fixedly connected to the side of the rotating cavity tube 14, and the output end of the first motor 16 is fixedly installed with the rotating shaft 20. The first motor 16 drives the rotating shaft 20 to rotate, and the rotation of the rotating shaft 20 drives the rotating cavity tube 14 to rotate, thereby adjusting the outlet direction of the bottom end of the cavity tube 14, so that the two groups of chambers circulate to store and discharge materials. A rotating frame 21 is fixedly installed on the top of the partition plate 15, and the rotating shaft 20 is rotatably arranged inside the rotating frame 21. The position of the rotating shaft 20 is limited by the rotating frame 21 to prevent the rotating shaft 20 from moving so that the position of the rotating cavity tube 14 after rotation is fixed, which is convenient for control.

[0029] See also Figure 1-2 The first motor 16 is a stepper motor with a self-locking function. After the first motor 16 drives the rotating cavity 14 to rotate, after the adjustment is completed and the power is turned off, the first motor 16 locks the rotating shaft to prevent the rotating cavity 14 from rotating due to external forces, thereby causing inaccurate weighing.

[0030] See also Figure 1-2Two groups of discharge assemblies 30 are fixedly connected to the bottom of the tank body 10 along the partition plate 15. The bottom of the discharge assembly 30 is inclined. The discharge ports of the two groups of discharge assemblies 30 are connected to valves 31. The bottom end of one side of the discharge assembly 30 is at the bottom, which helps to completely empty the particles when discharging them, avoid residues, and make the measurement accurate.

[0031] See also Figure 1-2 The supporting weighing assembly 50 includes a supporting frame 51 arranged on the side of the tank body 10, a weighing sensor 52 is installed on the top of the supporting frame 51, a weighing plate 53 is fixedly installed on the side of the tank body 10, the weighing plate 53 and the weighing sensor 52 are fixedly installed, the weight of the tank body 10 is transferred to the weighing sensor 52 through the weighing plate 53, and the weight of the tank body 10 is weighed by multiple groups of weighing sensors 52, and the weighing result is sent to the controller 40, and the controller 40 summarizes it.

[0032] Beneficial effect: the plastic particles are transported to the receiving bucket 12 by the external conveying device, and then enter the A chamber 101 or the B chamber 102 in the tank body 10 through the guiding cavity 13 and the rotating cavity 14, and are weighed by supporting the weighing assembly 50. When the set weight is reached, the controller 40 controls the valve 31 corresponding to the chamber to open and discharge the particles from the tank body 10 for processing. When the discharge is completed, the valve 31 is closed, and at the same time, the controller 40 controls the first motor 16 to start, and the first motor 16 drives the rotating cavity 14 to rotate, so that the outlet at the bottom of the rotating cavity faces another empty chamber, and the material is discharged into the other chamber. When one of the chambers is discharged, the external conveying device continues to work to discharge the plastic particles into the other chamber, and at the same time completes the material storage weighing and quantitative discharge. The external conveying device has a high efficiency in conveying materials without stopping.

[0033] Embodiment 2: Embodiment 2 is a further improvement made on the basis of Embodiment 1, see Figure 5 In the present embodiment, a weighing tank for recycling waste plastics is fixedly installed with a second motor 70 on one side of the tank body 10. When the second motor 70 is started, a vibration block 71 is installed at the output end of the second motor 70. The second motor 70 drives the vibration block 71 to rotate. Since the vibration block 71 is eccentrically designed, the second motor 70 vibrates, thereby driving the tank body 10 to vibrate as a whole.

[0034] Beneficial effect: The vibration of the tank body 10 transmits the vibration, so that the particles in the guide cavity 13, the rotating cavity 14 and the discharge component 30 are discharged quickly, avoiding blockage, and making the storage and discharge of materials smoother.

[0035] Embodiment 3: Embodiment 3 is a further improvement made on the basis of Embodiment 2, see Figure 3-4In the present embodiment, a weighing tank for recycling waste plastics is provided, wherein a shaft 17 is installed inside the tank body 10, a partition plate 15 is sleeved on the outside of the shaft 17, and the partition plate 15 is rotatably arranged inside the tank body 10 through the shaft 17.

[0036] See also Figure 3-4 A spring frame 60 is provided on the front of the tank body 10, and a return spring 61 is fixedly installed on one side of the spring frame 60. A guide slot 62 is provided on one side of the tank body 10. A sliding shaft 63 is rotatably provided on one side of the partition plate 15. The sliding shaft 63 is slidably connected to the inside of the guide slot 62, and one end of the return spring 61 is installed with the sliding shaft 63. When the partition plate 15 is squeezed under the continuous accumulation of plastic particles, the sliding shaft 63 is pulled by the return ability of the return spring 61 when the partition plate 15 is tilted to a high degree, and the sliding shaft 63 drives the partition plate 15 to reset, providing a certain restoring force for the partition plate 15, so that the partition plate 15 has a certain reset tendency, and cooperates with the vibration of the second motor 70 to slowly restore the partition plate 15 to the vertical. As the plastic particles accumulate, the squeezing force on the partition plate 15 increases, and then the partition plate 15 is tilted toward the direction of the discharge chamber.

[0037] Beneficial effects:

[0038] 1. When the material is stored in the A chamber 101 by rotating the cavity tube 14, the partition plate 15 is squeezed under the vibration of the second motor 70 and the continuous accumulation of plastic particles. The partition plate 15 rotates with the shaft 17 as the center and moves toward the B chamber 102 side, so that the space of the A chamber 101 is increased. At this time, as the particles weighed in the B chamber are discharged, more space is vacated. The two chambers are set to store the discharged materials so that the volume of the tank body 10 is larger. The movable partition plate 15 can adjust the relative space between the A chamber and the B chamber, improve the space utilization rate inside the double chambers of the tank body, reduce the overall design volume of the tank body 10, and improve the space utilization rate of the device.

[0039] 2. The reset ability of the reset spring 61 assists the partition plate 15 to restore to an upright position when there are few plastic particles, so that the partition plate 15 can be quickly reset.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A weighing tank for recycling waste plastics, characterized in that: The invention comprises a tank body (10), a discharge assembly (30) is arranged at the bottom of the tank body (10), a valve (31) is arranged at the output end of the discharge assembly (30), a controller (40) is installed on one side of the tank body (10), a supporting weighing assembly (50) is arranged on the side of the tank body (10), a bucket frame (11) is installed on the top of the tank body (10), a receiving bucket (12) is installed in the middle of the bucket frame (11), and a guiding cavity is arranged at the bottom of the receiving bucket (12) A tube (13), a rotating cavity tube (14) is arranged at the bottom of the guiding cavity tube (13), a partition plate (15) is arranged in the middle of the tank body (10), the partition plate (15) divides the tank body (10) into an A cavity (101) and a B cavity (102), and a first motor (16) is fixedly mounted on the top of the partition plate (15), the first motor (16) is used to control the outlet at the bottom end of the rotating cavity tube (14) to face toward the A cavity (101) or the B cavity (102).

2. The waste plastic recycling weighing tank as claimed in claim 1, characterized in that: A rotating shaft (20) is fixedly connected to the side of the rotating cavity tube (14), a rotating frame (21) is fixedly mounted on the top of the partition plate (15), the rotating shaft (20) is rotatably arranged inside the rotating frame (21), and the output end of the first motor (16) is fixedly mounted to the rotating shaft (20).

3. The weighing tank for recycling waste plastics as claimed in claim 1, characterized in that: The first motor (16) is a stepping motor with a self-locking function.

4. The weighing tank for recycling waste plastics as claimed in claim 1, characterized in that: Two groups of discharge assemblies (30) are fixedly connected to the bottom of the tank body (10) along a partition plate (15) as a boundary, and the bottom of the discharge assembly (30) is arranged at an angle.

5. The weighing tank for recycling waste plastics as claimed in claim 1, characterized in that: The supporting weighing assembly (50) comprises a supporting frame (51) arranged on the side of the tank body (10), a weighing sensor (52) being installed on the top of the supporting frame (51), a weighing plate (53) being fixedly installed on the side of the tank body (10), and the weighing plate (53) and the weighing sensor (52) being fixedly installed.

6. The weighing tank for recycling waste plastics as claimed in claim 1, characterized in that: A second motor (70) is fixedly mounted on one side of the tank body (10), and a vibration block (71) is mounted on the output end of the second motor (70).

7. The weighing tank for recycling waste plastics according to any one of claims 1 to 5, characterized in that: The tank body (10) is provided with a shaft body (17) installed inside, the partition plate (15) is sleeved outside the shaft body (17), and the partition plate (15) is rotatably arranged inside the tank body (10) via the shaft body (17).

8. The weighing tank for recycling waste plastics as claimed in claim 6, characterized in that: A spring frame (60) is provided on the front of the tank body (10), a return spring (61) is fixedly mounted on one side of the spring frame (60), a guide slide groove (62) is provided on one side of the tank body (10), a slide shaft (63) is rotatably provided on one side of the partition plate (15), the slide shaft (63) is slidably connected to the inside of the guide slide groove (62), and one end of the return spring (61) is mounted on the slide shaft (63).

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