Scraper for filtering equipment and filtering equipment

Abstract

The scraper for the filtering equipment comprises a driving unit, a scraper body, a scraper sealing seat, a guide rod and a scraper mounting seat, the scraper body comprises an upper side face, a lower side face, a left side face and a right side face, and a blade is formed at the upper end of the scraper body; the lower end of the scraper is mounted on the scraper mounting seat, and the upper end of the scraper penetrates through a through hole in the scraper sealing seat and extends into the filtering chamber; containing grooves are formed in the upper side face, the lower side face, the left side face and the right side face of the scraper within the movement stroke range of the scraper, so that when the scraper and the scraper sealing base are abraded due to relative movement, and a gap between the scraper and the scraper sealing base is too large, materials can enter the containing grooves and are prevented from moving towards the direction of a through hole in the scraper sealing base, and the material sealing effect is improved. And leakage of materials can be effectively prevented.

Description

Technical Field

[0001] This application relates to the technical field of plastic product recycling and processing equipment, and in particular to a scraper for a filtration device and a filtration device. Background Technology

[0002] The mixture formed from recycled molten plastic often contains impurities. Before processing the plastic granules, it must be filtered. During the filtration process, impurities remain on the filter screen, requiring a scraper to remove them. The fallen impurities are discharged through the slag outlet. In existing filtration equipment, the scraper extends deep into the cavity enclosed by the equipment housing to remove impurities from the filter screen. After prolonged operation, the scraper's extension and retraction cause wear between the scraper and the scraper seal, resulting in excessive gaps and material leakage. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a scraper for a filtration device and a filtration device.

[0004] The first aspect of this application provides a scraper for a filtration device, including a drive unit, a scraper, a scraper sealing seat, a guide rod, and a scraper mounting seat; the scraper mounting seat is fixedly connected to the extended end of the drive rod of the drive unit; one end of the guide rod is fixedly connected to the drive unit, and the other end is fixedly connected to the lower part of the scraper sealing seat; the scraper mounting seat is sleeved on the guide rod; the scraper includes upper and lower sides and left and right sides, and the upper end forms a blade; the lower end of the scraper is mounted on the scraper mounting seat, and the upper end passes through a through hole on the scraper sealing seat and extends into the filtration chamber; accommodating grooves are provided on the upper and lower sides and left and right sides of the scraper within the range of the scraper's movement stroke.

[0005] In some embodiments of this application, the accommodating grooves on the upper and lower sides and the left and right sides of the scraper are interconnected.

[0006] In some embodiments of this application, the extending direction of the receiving grooves on the upper and lower sides of the scraper is perpendicular to the movement direction of the scraper.

[0007] In some embodiments of this application, the receiving grooves are in multiple groups, and the multiple groups of receiving grooves are arranged in parallel and spaced apart.

[0008] In some embodiments of this application, a pressure balancing hole is further provided between the receiving groove and the cutting edge.

[0009] In some embodiments of this application, there are multiple pressure balancing holes, and the multiple pressure balancing holes are arranged at intervals.

[0010] In some embodiments of this application, a locking block is provided at the lower end of the scraper, and the locking block protrudes from the scraper along the thickness direction of the scraper.

[0011] In some embodiments of this application, the scraper mounting base includes a first mounting base and a second mounting base; the first mounting base includes an integrally formed first recess and a first protrusion; the second mounting base includes an integrally formed second protrusion, a third protrusion and a second recess; the second protrusion and the first recess are detachably connected; an mounting space for mounting the scraper is formed between the first protrusion and the third protrusion; and a snap-fit ​​groove for accommodating a snap-fit ​​block is formed between the first recess and the second recess.

[0012] In some embodiments of this application, the guide rods are in multiple sets, and the multiple sets of guide rods are distributed at intervals on both sides of the drive rod of the drive unit.

[0013] A second aspect of this application provides a filtration device, which includes a filtration scraper and a filtration device body, wherein the filtration scraper is fixedly attached to the filtration device body.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: The scraper for the filter equipment of this application includes a drive unit, a scraper, a scraper sealing seat, a guide rod, and a scraper mounting seat. The scraper includes upper and lower sides and left and right sides, with the upper end forming a blade. The lower end of the scraper is mounted on the scraper mounting seat, and the upper end passes through the through hole on the scraper sealing seat and extends into the filter chamber. Receiving grooves are provided on the upper and lower sides and left and right sides of the scraper within the range of the scraper's movement stroke. Thus, when wear occurs between the scraper and the scraper sealing seat due to relative movement, resulting in an excessive gap between them, the material will enter the receiving groove, preventing the material from moving towards the through hole on the scraper sealing seat, effectively preventing material leakage.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this document. Attached Figure Description

[0016] The accompanying drawings, which form part of this document, are used to provide a further understanding of the document. The illustrative embodiments and descriptions herein are used to explain the document and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a scraper for a filtration device provided in an exemplary embodiment of this application;

[0018] Figure 2 This is a front view of a scraper for a filtration device provided in an exemplary embodiment of this application;

[0019] Figure 3This is a side view of a scraper for a filtration device provided in an exemplary embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure of a filtration device provided in an exemplary embodiment of this application.

[0021] In the picture:

[0022] 100A, Filter unit body; 100B, Filter unit scraper;

[0023] 10. Drive unit; 20. Scraper; 201. Receiving groove; 202. Pressure balance hole; 203. Snap-fit ​​block; 30. Scraper sealing seat; 40. Guide rod; 50. Scraper mounting seat; 501. First mounting seat; 5011. First recess; 5012. First protrusion; 502. Second mounting seat; 5021. Second protrusion; 5022. Third protrusion; 5023. Second recess. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0025] The mixture formed from recycled molten plastic often contains impurities. Before processing the plastic granules, it must be filtered. During the filtration process, impurities remain on the filter screen, requiring a scraper to remove them. The fallen impurities are discharged through the slag outlet. In existing filtration equipment, the scraper extends deep into the cavity enclosed by the equipment housing to remove impurities from the filter screen. After prolonged operation, the scraper's extension and retraction cause wear between the scraper and the scraper seal, resulting in excessive gaps and material leakage.

[0026] Based on this, an exemplary embodiment of this application provides a scraper for a filtration device and a filtration device. The scraper for the filtration device includes a drive unit, a scraper, a scraper sealing seat, a guide rod, and a scraper mounting seat. The scraper includes upper and lower sides and left and right sides, with a blade formed at the upper end. The lower end of the scraper is mounted on the scraper mounting seat, and the upper end passes through a through hole on the scraper sealing seat and extends into the filtration chamber. Receiving grooves are provided on the upper and lower sides and left and right sides of the scraper within the range of the scraper's movement stroke. Thus, when wear occurs between the scraper and the scraper sealing seat due to relative movement, resulting in an excessive gap between them, the material will enter the receiving groove, preventing the material from moving towards the through hole on the scraper sealing seat, effectively preventing material leakage.

[0027] An exemplary embodiment of this application provides a scraper 20 for a filtration device, such as... Figure 1 As shown, the scraper of this filtration device includes a drive unit 10, a scraper 20, a scraper sealing seat 30, a guide rod 40, and a scraper mounting seat 50. The scraper mounting seat 50 is fixedly connected to the extended end of the drive rod of the drive unit 10. One end of the guide rod 40 is fixedly connected to the drive unit 10, and the other end is fixedly connected to the lower part of the scraper sealing seat 30. The scraper mounting seat 50 is sleeved on the guide rod 40. One end of the scraper 20 is mounted on the scraper mounting seat 50. Preferably, there are multiple sets of guide rods 40, which are spaced apart on both sides of the drive rod of the drive unit 10. The drive unit 10 is a balanced hydraulic cylinder, which can balance the pressure inside the filtration device and adjust the pressure of the scraper 20 according to the pressure inside the filtration device. Under the drive of the drive unit 10, the drive rod of the drive unit 10 can drive the scraper mounting seat 50 to move along the guide rod 40, thereby driving the scraper 20 to move.

[0028] Continue to refer to Figure 1 The scraper 20 includes upper and lower sides and left and right sides. The surface of the scraper 20 in the width direction is the upper and lower sides, and the surface of the scraper 20 in the thickness direction is the left and right sides. The upper end of the scraper 20 forms a cutting edge. The lower end of the scraper 20 is mounted on the scraper mounting base 50, and the upper end passes through the through hole on the scraper sealing seat 30 and extends into the filter chamber. Within the stroke range of the scraper 20, the upper and lower sides and the left and right sides of the scraper 20 are provided with receiving grooves 201. When wear occurs between the scraper 20 and the scraper sealing seat 30 due to relative movement, resulting in an excessive gap between them, the material will enter the receiving grooves 201, preventing the material from moving towards the through hole on the scraper sealing seat 30, thus effectively preventing material leakage.

[0029] The upper and lower sides and the left and right sides of the scraper 20 have interconnected receiving grooves 201. All receiving grooves 201 on the upper and lower sides and the left and right sides can accommodate material. The extending direction of the receiving grooves 201 on the upper and lower sides of the scraper 20 is perpendicular to the movement direction of the scraper 20, which effectively prevents the material contained in the receiving grooves 201 from falling out of the receiving grooves 201 under the action of the scraper 20, and avoids the material moving towards the through hole on the scraper sealing seat 30, thus preventing material leakage.

[0030] Preferably, there are multiple sets of receiving grooves 201, which are arranged in parallel and spaced apart. This increases the resistance to the material moving towards the through hole on the scraper sealing seat 30. If the material wants to enter the through hole on the scraper sealing seat 30, it needs to move from the receiving groove 201 at the upper end of the scraper 20 to the lower end of the scraper 20. During the movement, the material will enter each receiving groove 201 in sequence, thus increasing the resistance to the material movement and preventing material leakage.

[0031] In one embodiment, to balance the pressure on the upper and lower parts of the scraper 20, such as Figure 2 As shown, a pressure balancing hole 202 is also provided between the receiving groove 201 and the cutting edge. There are multiple pressure balancing holes 202, which are arranged at intervals.

[0032] In one embodiment, a locking block 203 is provided at the lower end of the scraper 20, and the locking block 203 protrudes from the scraper 20 along the thickness direction of the scraper 20. For example... Figure 2 and 3 As shown, the scraper mounting base 50 includes a first mounting base 501 and a second mounting base 502. The first mounting base 501 includes an integrally formed first recess 5011 and a first protrusion 5012. The second mounting base 502 includes an integrally formed second protrusion 5021, a third protrusion 5022, and a second recess 5023. The second protrusion 5021 and the first recess 5011 are detachably connected. An installation space for mounting the scraper 20 is formed between the first protrusion 5012 and the third protrusion 5022. A snap-fit ​​groove for accommodating the snap-fit ​​block 203 is formed between the first recess 5011 and the second recess 5023. The snap-fit ​​block 203 at the lower end of the scraper 20 can snap into the snap-fit ​​groove, forming a snap-fit ​​connection, which facilitates the installation and replacement of the scraper 20, and enables the scraper 20 to be quickly installed and removed.

[0033] An exemplary embodiment of this application provides a filtration device, such as... Figure 4 As shown, the filtration device includes a filtration scraper 100B and a filtration device body 100A, with the filtration scraper 100B fixedly attached to the filtration device body 100A.

[0034] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0035] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0036] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, the intent of this application also includes these modifications and variations.

Claims

1. A scraper for a filtration device, characterized in that, The system includes a drive unit, a scraper, a scraper sealing seat, a guide rod, and a scraper mounting base. The scraper mounting base is fixedly connected to the extended end of the drive rod of the drive unit. One end of the guide rod is fixedly connected to the drive unit, and the other end is fixedly connected to the lower part of the scraper sealing seat. The scraper mounting base is sleeved on the guide rod. The scraper includes upper and lower sides and left and right sides, with the upper end forming a blade. The lower end of the scraper is mounted on the scraper mounting base, and the upper end passes through a through hole in the scraper sealing seat and extends into the filter chamber. Receiving grooves are provided on the upper and lower sides and left and right sides of the scraper within the range of the scraper's movement stroke.

2. The scraper for the filtration device according to claim 1, characterized in that, The accommodating grooves on the upper and lower sides and the left and right sides of the scraper are interconnected.

3. The scraper for the filtration device according to claim 1, characterized in that, The extension direction of the receiving grooves on the upper and lower sides of the scraper is perpendicular to the direction of movement of the scraper.

4. The scraper for the filtration device according to claim 3, characterized in that, The accommodating grooves are in multiple sets, and the multiple sets of accommodating grooves are arranged in parallel and spaced apart.

5. The scraper for the filtration device according to claim 1, characterized in that, A pressure balancing hole is also provided between the receiving groove and the cutting edge.

6. The scraper for the filtration device according to claim 5, characterized in that, There are multiple pressure balancing holes, which are arranged at intervals.

7. The scraper for the filtration device according to claim 1, characterized in that, The lower end of the scraper is provided with a locking block, which protrudes from the scraper along the thickness direction.

8. The scraper for the filtration device according to claim 7, characterized in that, The scraper mounting base includes a first mounting base and a second mounting base; the first mounting base includes an integrally formed first recess and a first protrusion; the second mounting base includes an integrally formed second protrusion, a third protrusion and a second recess; the second protrusion and the first recess are detachably connected; an mounting space for mounting the scraper is formed between the first protrusion and the third protrusion; a snap-fit ​​groove for accommodating a snap-fit ​​block is formed between the first recess and the second recess.

9. The scraper for the filtration device according to claim 1, characterized in that, The guide rods are in multiple sets, and the multiple sets of guide rods are distributed at intervals on both sides of the drive rod of the drive unit.

10. A filtration device, characterized in that, Includes a scraper for a filter device as described in any one of claims 1 to 9 and a filter device body, wherein the scraper for the filter device is fixedly attached to the filter device body.

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