Filtering device of PVC (Polyvinyl Chloride) film extrusion molding equipment

Abstract

The utility model discloses a PVC (polyvinyl chloride) film extrusion molding equipment filtering device which comprises a main body block, mounting grooves, a filtering groove, mounting blocks, a filtering plate, a feeding pipe, a discharging pipe, a first communicating hole and a second communicating hole, the main body block is provided with the feeding pipe and the discharging pipe, the main body block is provided with two mounting grooves, the groove bottoms of the mounting grooves are provided with the filtering groove, the filtering groove is in a cuboid shape, and the first communicating hole is communicated with the second communicating hole. A first communicating hole and a second communicating hole are formed in the two opposite side walls of the filter tank respectively, the first communicating hole and the second communicating hole are communicated with the feeding pipe and the discharging pipe respectively, the first communicating hole and the second communicating hole are both connected with threaded holes, and the threaded holes transversely penetrate through the corresponding first communicating hole or the second communicating hole. The threaded hole is connected with the first communication hole and the second communication hole, and the cut-off bolt is screwed on the threaded hole, so that the first communication hole and the second communication hole can be cut off, the filter plate can be replaced or cleaned in a non-stop state, and the production efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane making, in particular to the technical field of filtering devices. Background Art

[0002] PVC films such as decorative films and coating films are generally produced by extrusion. Due to improper storage or raw material preparation, some impurities are inevitably mixed into the film. These impurities will flow with the molten raw materials. The impurities mixed into the final product will affect the quality of the product. At the same time, impurities are also easy to block the extrusion port, causing the product to deform.

[0003] Existing patent CN215320527U discloses a filter mechanism of a plastic film extrusion device, which can filter molten raw materials. However, it needs to stop the machine for replacement or cleaning of the filter plate, which not only wastes some raw materials but also affects production efficiency. Summary of the invention

[0004] The utility model aims to solve the problems in the prior art and provides a PVC film extrusion equipment filtering device, which can clean or replace the filter plate of the filtering equipment without stopping the machine.

[0005] To achieve the above-mentioned purpose, the utility model proposes a PVC film extrusion equipment filtering device, including a main body block, a mounting groove, a filter groove, a mounting block, a filter plate, a feed pipe, a discharge pipe, a first connecting hole, and a second connecting hole. The main body block is provided with a feed pipe and a discharge pipe, and two mounting grooves are provided on the main body block. The bottom of the mounting groove is provided with a filter groove. The filter groove is in a rectangular shape. The two opposite side walls of the filter groove are respectively provided with a first connecting hole and a second connecting hole. The first connecting hole and the second connecting hole are respectively connected to the feed pipe and the discharge pipe. The first connecting hole and the second connecting hole are both connected with threaded holes. The threaded holes are transversely connected to the filter grooves. The corresponding first connecting hole or the second connecting hole is passed through, and a truncation bolt is screwed on the threaded hole, and the bolt head of the truncation bolt is located outside the main block. The mounting block is composed of an embedded block, a positioning block and a fixed block connected in sequence. The embedded block is embedded in the filter tank, and a plurality of filter plates parallel to each other are fixed on the embedded block. The filter plates cut off the internal space of the filter tank, and the filter plates are distributed in sequence along the direction from the first connecting hole to the second connecting hole. The positioning block is embedded in the mounting groove, and the fixed block is against the side wall of the main block. The fixed block is fixed to the main block by a plurality of fixing bolts, and the fixing bolts pass through the fixed block and are screwed on the main block.

[0006] Preferably, the main body block is in the shape of a cuboid, the feed pipe and the discharge pipe are respectively located on two opposite side walls of the main body block, and the two mounting grooves are respectively located on the other two opposite side walls of the main body block.

[0007] Preferably, the inner diameter of the threaded hole is larger than the inner diameter of the first connecting hole or the second connecting hole.

[0008] Preferably, the bottom of the installation groove is provided with a plurality of annular auxiliary grooves, the auxiliary grooves surround the notch of the filter groove, and the positioning block is provided with a plurality of auxiliary rings corresponding to the auxiliary grooves, and the auxiliary rings are embedded in the auxiliary grooves.

[0009] Beneficial effects of the utility model: the utility model connects the threaded hole with the first connecting hole and the second connecting hole, and screws a cut-off bolt on the threaded hole, so that the first connecting hole and the second connecting hole can be cut off, so that the filter plate can be replaced or cleaned without stopping the machine, thereby ensuring production efficiency.

[0010] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of a filtering device of a PVC film extrusion equipment of the utility model.

[0012] In the figure: 1-main block, 2-mounting groove, 3-mounting block, 11-feed pipe, 12-discharge pipe, 20-filter groove, 21-first connecting hole, 22-second connecting hole, 25-threaded hole, 26-cut-off bolt, 29-auxiliary groove, 30-filter plate, 31-embedded block, 32-positioning block, 33-fixing block, 34-fixing bolt, 39-auxiliary ring. DETAILED DESCRIPTION

[0013] Embodiment 1:

[0014] See also Figure 1The utility model PVC film extrusion equipment filtering device comprises a main body block 1, a mounting groove 2, a filter groove 20, a mounting block 3, a filter plate 30, a feed pipe 11, a discharge pipe 12, a first connecting hole 21, and a second connecting hole 22. The main body block 1 is provided with a feed pipe 11 and a discharge pipe 12. The main body block 1 is provided with two mounting grooves 2. The bottom of the mounting groove 2 is provided with a filter groove 20. The filter groove 20 is in a rectangular shape. The two opposite side walls of the filter groove 20 are respectively provided with a first connecting hole 21 and a second connecting hole 22. The first connecting hole 21 and the second connecting hole 22 are respectively connected to the feed pipe 11 and the discharge pipe 12. The first connecting hole 21 and the second connecting hole 22 are both connected with a threaded hole 25. The threaded hole 25 crosses the corresponding first The connecting hole 21 or the second connecting hole 22, the threaded hole 25 is screwed with a cut-off bolt 26, the bolt head of the cut-off bolt 26 is located outside the main block 1, the mounting block 3 is composed of an embedded block 31, a positioning block 32 and a fixed block 33 connected in sequence, the embedded block 31 is embedded in the filter tank 20, and a plurality of filter plates 30 parallel to each other are fixed on the embedded block 31, the filter plate 30 cuts off the internal space of the filter tank 20, and the filter plates 30 are distributed in sequence along the direction from the first connecting hole 21 to the second connecting hole 22, the positioning block 32 is embedded in the mounting groove 2, the fixed block 33 is against the side wall of the main block 1, and the fixed block 33 is fixed to the main block 1 by a plurality of fixing bolts 34, and the fixing bolts 34 pass through the fixing block 33 and are screwed on the main block 1.

[0015] The main body block 1 is in a rectangular parallelepiped shape, the feed pipe 11 and the discharge pipe 12 are respectively located on two opposite side walls of the main body block 1 , and the two mounting grooves 2 are respectively located on the other two opposite side walls of the main body block 1 .

[0016] Embodiment 2:

[0017] In order to ensure the cutting effect of the cutting bolt 26 , the inner diameter of the threaded hole 25 is larger than the inner diameter of the first connecting hole 21 or the second connecting hole 22 .

[0018] Embodiment three:

[0019] In order to prevent the molten raw material from overflowing from the installation groove 2, the bottom of the installation groove 2 is provided with a plurality of annular auxiliary grooves 29, the auxiliary grooves 29 surround the notch of the filter groove 20, and the positioning block 32 is provided with a plurality of auxiliary rings 39 corresponding to the auxiliary grooves 29, and the auxiliary rings 39 are embedded in the auxiliary grooves 29.

[0020] Working process of this utility model:

[0021] During operation of the PVC film extrusion equipment filter device of the utility model, the molten raw material enters from the feed pipe 11, enters the filter tank 20 through the first connecting hole 21, is filtered by the filter plate 30, then enters the discharge pipe 12 through the second connecting hole 22, and finally leaves from the discharge pipe 12.

[0022] When it is necessary to clean or replace the filter plate 30 in one of the filter tanks 20, the first connecting hole 21 and the second connecting hole 22 of the corresponding filter tank 20 are cut off by screwing the cut-off bolt 26, and then the mounting block 3 is removed, and then the new mounting block 3 or the filter plate 30 on the removed mounting block 3 is installed on the main block 1 after cleaning, and then the cut-off bolt 26 is screwed in the opposite direction to make the first connecting hole 21 and the second connecting hole 22 in a unobstructed state.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. PVC membrane extrusion equipment filtering device, characterized by: The invention comprises a main body block (1), a mounting groove (2), a filter groove (20), a mounting block (3), a filter plate (30), a feed pipe (11), a discharge pipe (12), a first connecting hole (21), and a second connecting hole (22), wherein the main body block (1) is provided with a feed pipe (11) and a discharge pipe (12), two mounting grooves (2) are provided on the main body block (1), a filter groove (20) is provided at the bottom of the mounting groove (2), the filter groove (20) is in a rectangular parallelepiped shape, and a first connecting hole (21) and a second connecting hole (22) are respectively provided on two opposite side walls of the filter groove (20), the first connecting hole (21) and the second connecting hole (22) are respectively connected to the feed pipe (11) and the discharge pipe (12), and the first connecting hole (21) and the second connecting hole (22) are both connected to a threaded hole (25), and the threaded hole (25) crosses the corresponding first connecting hole (21) or the second connecting hole (22). The connecting hole (22) is provided with a cut-off bolt (26) screwed on the threaded hole (25), and the bolt head of the cut-off bolt (26) is located outside the main block (1). The mounting block (3) is composed of an embedded block (31), a positioning block (32) and a fixed block (33) connected in sequence. The embedded block (31) is embedded in the filter tank (20), and a plurality of filter plates (30) parallel to each other are fixed on the embedded block (31). The filter plates (30) cut off the internal space of the filter tank (20), and the filter plates (30) are distributed in sequence along the direction from the first connecting hole (21) to the second connecting hole (22). The positioning block (32) is embedded in the mounting groove (2), and the fixed block (33) abuts against the side wall of the main block (1). The fixed block (33) is fixed to the main block (1) by a plurality of fixing bolts (34), and the fixing bolts (34) pass through the fixing block (33) and are screwed on the main block (1).

2. The PVC film extrusion equipment filtering device according to claim 1, characterized in that: The main body block (1) is in the shape of a rectangular parallelepiped, the feed pipe (11) and the discharge pipe (12) are respectively located on two opposite side walls of the main body block (1), and the two mounting grooves (2) are respectively located on the other two opposite side walls of the main body block (1).

3. The PVC film extrusion equipment filtering device according to claim 1, characterized in that: The inner diameter of the threaded hole (25) is greater than the inner diameter of the first connecting hole (21) or the inner diameter of the second connecting hole (22) in which it is located.

4. The PVC film extrusion equipment filtering device according to claim 1, characterized in that: The bottom of the installation groove (2) is provided with a plurality of annular auxiliary grooves (29), the auxiliary grooves (29) surround the notch of the filter groove (20), and the positioning block (32) is provided with a plurality of auxiliary rings (39) corresponding to the auxiliary grooves (29), the auxiliary rings (39) being embedded in the auxiliary grooves (29).

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