Multistage screening device for master batches

Abstract

The utility model discloses a master batch multistage screening device which comprises a feeding screening module, the feeding screening module comprises a feeding base and a feeding screening bin, the feeding screening bin is connected with the feeding base through an elastic connecting part, the feeding screening bin is connected with a screening assembly and a cleaning assembly, the screening assembly is used for screening master batches, and the cleaning assembly is used for cleaning the master batches. The cleaning assembly is used for cleaning impurities in the feeding screening bin, the screening assembly comprises a first screening plate, the feeding screening bin is divided into a first bin body and a second bin body through the first screening plate, and the first bin body and the second bin body are both connected with discharging ports; and the receiving and screening module is arranged on one side of the feeding and screening module and comprises a vibration hopper, a receiving base and a second screening plate, the second screening plate is in sliding connection with the vibration hopper, and the vibration hopper is elastically connected with the receiving base. According to the master batch screening device, master batches can be screened for multiple times, dust and impurities in the master batches can be collected and treated at the same time, and the screened master batches have high cleanliness and do not need to be treated again.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening equipment, and in particular relates to a multi-stage screening device for master batches. Background Art

[0002] Masterbatch screening is an important part of the masterbatch production process, which aims to classify the masterbatch according to the particle size to ensure the quality and uniformity of the product. Masterbatch will produce a lot of impurities during the production process, which may come from the raw materials themselves, production equipment or tiny particles, dust in the production environment, etc.

[0003] For example, the application number CN202010336936.7 discloses a vertical masterbatch screening device, which drives the cam to rotate through the cooperation of the synchronous wheel and the synchronous belt. The rotation of the cam drives the screen to move back and forth, so that the masterbatch on the screen is screened layer by layer. The screened masterbatch rolls down through the guide plate. By screening layer by layer, masterbatch of different sizes can be screened out to improve the quality of the masterbatch. However, the device does not process the impurities in the masterbatch. The impurities mixed with the masterbatch will have an adverse effect on the quality of the masterbatch. Therefore, a screening device that can process and collect impurities is needed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model discloses a multi-stage screening device for masterbatches. The device discloses a feeding screening module and a receiving screening module, which can screen the masterbatches multiple times and collect and process the dust and impurities in the masterbatches at the same time, so that the screened masterbatches have a higher degree of cleanliness and do not need to be further processed.

[0005] Specifically, the utility model discloses a masterbatch multi-stage screening device, comprising:

[0006] A feeding and screening module, the feeding and screening module comprises a feeding base and a feeding and screening bin, the feeding and screening bin is connected to the feeding base through an elastic connecting part, the feeding and screening bin is connected with a screening component and a cleaning component, the screening component screens the masterbatch, the cleaning component cleans the impurities in the feeding and screening bin, the screening component comprises a first sieve plate, the first sieve plate divides the feeding and screening bin into a first bin body and a second bin body, and the first bin body and the second bin body are both connected with a discharge port;

[0007] The material receiving and screening module is arranged on one side of the material feeding and screening module, and comprises a vibrating bucket, a material receiving base and a second screen plate, wherein the second screen plate is slidably connected to the vibrating bucket, and the vibrating bucket is elastically connected to the material receiving base.

[0008] Furthermore, the material collecting and screening modules are provided with two groups, which are respectively connected to the discharge ports of the first bin body and the second bin body.

[0009] Furthermore, the screening assembly also includes a screening plate mounting frame, the first screening plate is connected to the mounting frame, the screening plate mounting frame and the feeding screening bin are arranged at an angle, and a plurality of vibrating baffles are provided above the screening plate mounting frame, and a gap is provided between the vibrating baffle and the first screening plate for the mother particles to pass through.

[0010] Furthermore, the cleaning component includes an exhaust duct and an impurity collection station, the exhaust duct is connected to the duct connection part at the top of the feeding and screening bin, and the impurity collection station is arranged at the bottom of the feeding and screening bin.

[0011] Furthermore, the impurity collection station includes a support plate and a collection box, the collection box is slidably connected to the support plate, a fixed stopper is provided on one side of the support plate, and a rotating stopper is provided on the other side, and a through hole is provided on the lower surface of the feeding and screening bin to allow impurities to enter the collection box.

[0012] Furthermore, a masterbatch baffle is provided below the screening component, the masterbatch baffle is elastically connected to the second bin body, and an ash leakage hole is opened on the masterbatch baffle, and the diameter of the ash leakage hole is smaller than the diameter of the masterbatch.

[0013] Furthermore, the masterbatch baffle is an arc-shaped sheet.

[0014] Furthermore, a vibrator is provided at the bottom of the feeding and screening bin.

[0015] The beneficial effect of the utility model is that the arrangement of the cleaning component processes the impurities in the masterbatch, thereby improving the quality of the masterbatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0017] Figure 1 It is an axonometric view of a multi-stage screening device for masterbatch;

[0018] Figure 2 It is the axonometric view of the feeding and screening module;

[0019] Figure 3 This is an axonometric view of the feeding and screening module from another perspective;

[0020] Figure 4 This is the internal axonometric view of the feeding and screening module;

[0021] Figure 5 It is a side view of the feeding and screening module;

[0022] Figure 6 It is a top view of the feeding and screening module;

[0023] Figure 7It is a cross-sectional view of the feeding and screening module;

[0024] Figure 8 This is a partial enlarged view of the feeding and screening module.

[0025] The numbers involved in the accompanying drawings are as follows: feeding and screening module 1, feeding base 11, feeding and screening bin 12, first bin body 121, second bin body 122, discharge port 123, feed port 124, pipe connecting part 125, elastic connecting part 13, screening assembly 14, first screen plate 141, screening plate mounting frame 142, vibrating baffle 143, masterbatch baffle 144, ash leakage hole 145, impurity collection station 15, support plate 151, collection box 152, fixed block 153, rotating block 154, through hole 155, vibrator 16, material receiving and screening module 2, vibrating bucket 21, second screen plate 22, material receiving base 23. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-8 As shown, the utility model discloses a masterbatch multi-stage screening device, comprising:

[0028] A feeding and screening module 1, comprising a feeding base 11 and a feeding and screening bin 12, wherein the feeding and screening bin 12 is connected to the feeding base 11 through an elastic connecting portion 13, and the feeding and screening bin 12 is connected with a screening component 14 and a cleaning component, wherein the screening component 14 screens the masterbatch, and the cleaning component cleans the impurities in the feeding and screening bin 12, and the screening component 14 comprises a first sieve plate 141, wherein the first sieve plate 141 divides the feeding and screening bin 12 into a first bin body 121 and a second bin body 122, and both the first bin body 121 and the second bin body 122 are connected with a discharge port 123;

[0029] The material receiving and screening module 2 is arranged on one side of the material feeding and screening module 1, and comprises a vibrating bucket 21, a material receiving base 23 and a second sieve plate 22, the second sieve plate 22 is slidably connected to the vibrating bucket 21, and the vibrating bucket 21 is elastically connected to the material receiving base 23.

[0030] The feeding screening module 1 and the receiving screening module 2, the masterbatch screened by the feeding screening module 1 enters the receiving screening module 2 for further screening, the masterbatch can be screened multiple times, and the dust and impurities in the masterbatch are collected and processed at the same time, so that the screened masterbatch has a higher cleanliness and does not need to be processed again.

[0031] In addition, a feed port 124 is provided on one side of the feeding and screening bin 12 , and the masterbatch enters the feeding and screening bin 12 through the feed port 124 .

[0032] In some embodiments of the present invention, two groups of material collecting and screening modules 2 are provided, which are respectively connected to the discharge ports 123 of the first bin body 121 and the second bin body 122. The setting of the discharge port 123 facilitates the discharge of the masterbatch.

[0033] In some embodiments of the present invention, a vibrator 16 is provided at the bottom of the feeding and screening bin 12. The vibrator 16 is provided to make the feeding and screening bin 12 vibrate continuously, so that the masterbatch is fully screened in the feeding and screening bin 12.

[0034] In some embodiments of the utility model, the screening assembly 14 further includes a screening plate mounting frame 142, the first screening plate 141 is connected to the screening plate mounting frame 142, the screening plate mounting frame 142 is arranged obliquely with the feeding screening bin 12, and a plurality of vibration baffles 143 are arranged above the screening plate mounting frame 142, and a gap for the masterbatch to pass through is arranged between the vibration baffles 143 and the first screening plate 141. The screening plate mounting frame 142 is obliquely arranged in the feeding screening bin 12, so that the masterbatch moves downward while oscillating, and the vibration baffles 143 restrict the masterbatch to avoid incomplete screening caused by too fast movement or large amplitude of the masterbatch.

[0035] In some embodiments of the present invention, the cleaning assembly includes an exhaust duct (not shown) and an impurity collection station 15, the exhaust duct is connected to the duct connection portion 125 at the top of the feeding and screening bin 12, and the impurity collection station 15 is arranged at the bottom of the feeding and screening bin 12. When screening the masterbatch, under the action of the vibrator 16, some impurities will diffuse in the feeding and screening bin 12, and the other part of the impurities will fall due to gravity. The exhaust duct processes the impurities diffused in the feeding and screening bin 12, and the impurity collection station 15 processes the impurities falling in the feeding and screening bin 12, so as to maintain the cleanliness in the feeding and screening bin 12 and improve the quality of the masterbatch after screening.

[0036] In some embodiments of the utility model, the impurity collection station 15 includes a support plate 151 and a collection box 152. The collection box 152 is slidably connected to the support plate 151. A fixed stopper 153 is provided on one side of the support plate 151, and a rotating stopper 154 is provided on the other side. A through hole 155 is provided on the lower surface of the feeding and screening bin 12 to allow impurities to enter the collection box 152. The fixed stopper 153 and the rotating stopper 154 limit the displacement of the collection box 152 to prevent the collection box 152 from being separated from the support plate 151 during the vibration process. In addition, rubber pads are provided around the collection box 152 to reduce the noise during vibration.

[0037] On the other hand, when the vibrator 16 is working, the impurities are shaken up, and some of the impurities due to gravity will pass through the first screen plate 141 and fall into the second bin body 122 of the feeding screening bin 12, and then pass through the through hole 155 and enter the collecting box 152 to be collected.

[0038] In some embodiments of the utility model, a masterbatch baffle 144 is provided below the screening component 14. The masterbatch baffle 144 is elastically connected to the second bin 122, and an ash leakage hole 145 is provided on the masterbatch baffle 144. The diameter of the ash leakage hole 145 is smaller than the diameter of the masterbatch. The masterbatch baffle 144 is installed below the first screen plate 141. Impurities pass through the first screen plate 141 and the through hole 155 to enter the collection box 152. However, during the screening process, there is a risk that smaller masterbatch will block the through hole 155, resulting in the impurities being unable to be discharged through the through hole 155. The setting of the masterbatch baffle 144 avoids this problem, allowing smaller masterbatch to pass through the first screen plate 141 and fall onto the masterbatch baffle 144. The masterbatch baffle 144 will give the masterbatch an upward elastic force, causing the masterbatch to move downward along the masterbatch baffle 144, thereby preventing the masterbatch from blocking the ash leakage hole 145 and the through hole 155.

[0039] In some embodiments of the present invention, the masterbatch baffle 144 is an arc-shaped sheet body. The arc-shaped masterbatch baffle 144 facilitates the sliding of the masterbatch.

[0040] The working mode of the utility model is as follows:

[0041] The masterbatch enters the feeding and screening module 1 at the feed port 124. Under the action of the vibrator 16, the masterbatch moves forward, and the first sieve plate 141 screens the masterbatch. At the same time, the exhaust duct and the impurity collection station 15 suck and collect the impurities in the feeding and screening bin 12. During screening, the masterbatch in the first bin body 121 that has not passed through the first sieve plate 141 is discharged along the discharge port 123 of the first bin body 121 and enters the receiving and screening module 2. The masterbatch that has not passed through the first sieve plate 141 is screened; the masterbatch in the second bin body 122 that has passed through the first sieve plate 141 is discharged along the discharge port 123 of the second bin body 122 and enters the receiving and screening module 2. The masterbatch that has passed through the first sieve plate 141 is screened.

[0042] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A multi-stage screening device for masterbatch, characterized in that: include: A feeding and screening module (1), the feeding and screening module (1) comprising a feeding base (11) and a feeding and screening bin (12), the feeding and screening bin (12) being connected to the feeding base (11) via an elastic connecting portion (13), the feeding and screening bin (12) being connected to a screening component (14) and a cleaning component, the screening component (14) screening the masterbatch, the cleaning component cleaning the impurities in the feeding and screening bin (12), the screening component (14) comprising a first sieve plate (141), the first sieve plate (141) dividing the feeding and screening bin (12) into a first bin body (121) and a second bin body (122), the first bin body (121) and the second bin body (122) both being connected to a discharge port (123); A material receiving and screening module (2), the material receiving and screening module (2) is arranged on one side of the material feeding and screening module (1), and comprises a vibrating bucket (21), a material receiving base (23) and a second screen plate (22), the second screen plate (22) is slidably connected to the vibrating bucket (21), and the vibrating bucket (21) is elastically connected to the material receiving base (23).

2. The masterbatch multi-stage screening device according to claim 1, characterized in that: The material collecting and screening modules (2) are provided with two groups, which are respectively connected to the discharge ports (123) of the first bin body (121) and the second bin body (122).

3. The masterbatch multi-stage screening device according to claim 1, characterized in that: The screening assembly (14) further comprises a screening plate mounting frame (142), the first screening plate (141) being connected to the screening plate mounting frame (142), the screening plate mounting frame (142) being arranged obliquely to the feeding screening bin (12), and a plurality of vibration baffles (143) being arranged above the screening plate mounting frame (142), and a gap for the mother particles to pass through being arranged between the vibration baffles (143) and the first screening plate (141).

4. The masterbatch multi-stage screening device according to claim 1, characterized in that: The cleaning component comprises an exhaust duct and an impurity collection station (15), wherein the exhaust duct is connected to a duct connection portion (125) at the top of the feeding and screening bin (12), and the impurity collection station (15) is arranged at the bottom of the feeding and screening bin (12).

5. The masterbatch multi-stage screening device according to claim 4, characterized in that: The impurity collection station (15) comprises a support plate (151) and a collection box (152); the collection box (152) is slidably connected to the support plate (151); a fixed stopper (153) is provided on one side of the support plate (151) and a rotating stopper (154) is provided on the other side; and a through hole (155) is provided on the lower surface of the feeding and screening bin (12) for allowing impurities to enter the collection box (152).

6. The masterbatch multi-stage screening device according to claim 1, characterized in that: A masterbatch baffle (144) is provided below the screening assembly (14), the masterbatch baffle (144) is elastically connected to the second bin body (122), and an ash leakage hole (145) is provided on the masterbatch baffle (144), the diameter of the ash leakage hole (145) being smaller than the diameter of the masterbatch.

7. The masterbatch multi-stage screening device according to claim 6, characterized in that: The masterbatch baffle (144) is an arc-shaped sheet.

8. The masterbatch multi-stage screening device according to claim 1, characterized in that: A vibrator (16) is also provided at the bottom of the feeding and screening bin (12).

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