Anti-seepage column type screen exchanger

Abstract

The utility model relates to the technical field of plasticized material processing, and discloses an anti-seepage column type screen exchanger which comprises a screen exchanger body, fixing rods are fixedly installed on the periphery of one side of the screen exchanger body, and two sets of connecting bases distributed in an arrayed mode are fixedly installed at the front ends of the fixing rods. Hydraulic oil cylinders are fixedly mounted on one sides of the two connecting bases correspondingly, and column bodies are fixedly mounted at the front ends of the hydraulic oil cylinders. According to the utility model, the carrier plates are adjusted and used, so that the carrier plates can be used for filtering and discharging corresponding to the double-hole discharging interface, and the two groups of hydraulic oil cylinders work, so that the lap joint correspondence of the porous screen plates on the two groups of carrier plates can be adjusted, and the matching usability is improved; the sealing strip and the butt joint strip are movably adjusted to be matched with a positioning and clamping structure in the screen exchanger main body, so that the joint between the carrier plate and the screen exchanger main body can be sealed when filtering is carried out in the screen exchanger main body, and the problem of leakage of plasticized materials is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of plasticized material processing, in particular to an anti-seepage column type screen changer. Background Art

[0002] As an important plastic product processing tool, plastic extruder is widely used in the extrusion field. Plastic extruder needs to filter the raw materials in the molten state before extrusion to improve the quality of the product. The screen changer is a manual or automatic switching device including one or more filter screens, which is used to filter out foreign particles and impurities when the plasticized material flows through the filter screen. The screen changer has a variety of types such as single-plate type, single-column type, double-column type, mesh type, wire-free type, etc. The screen changer can be installed on any new or existing extruder, melt pump, reactor or other extrusion production line. It can be used to filter any type of polymer, such as rubber or ceramic melt.

[0003] There are many types of screen changers, one of which is called double-column screen changer, which is widely used in the plastic extruder industry and is deeply loved by the plastic extruder industry. However, since plastic is easy to leak from the lower end cover of the double-column screen changer during extrusion, the existing double-column screen changer uses packing seals, and the sealing effect is not very satisfactory. As the position of the internal filter is adjusted, the sealing effect of the double-column screen changer is affected. Therefore, it is necessary to develop a new type of sealing structure type column screen changer. Utility Model Content

[0004] The utility model aims to provide an anti-seepage column type screen changer to solve the problem of insufficient sealing of the double column screen changer proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions, and discloses an anti-seepage column type screen changer, including: a screen changer main body, a fixing rod is fixedly installed around one side of the screen changer main body, two groups of arranged connecting seats are fixedly installed at the front end of the fixing rod, a hydraulic cylinder is fixedly installed on one side of the two groups of connecting seats, a column is fixedly installed at the front end of the hydraulic cylinder, two groups of arranged carrier plates are fixedly installed at the front end of the two groups of columns, a porous mesh plate is embedded and installed on the front and back sides of the carrier plate, and the porous mesh plates on the two groups of carrier plates butted up and down are close to each other, a filter plate is fixedly inserted at the top of the carrier plate, a filter screen is fixedly installed on the inner wall of the filter plate, a sealing strip is fixedly installed on the front and back sides of the carrier plate, the inner wall of the sealing strip is slidably connected with a butt strip, an elastic member is provided on the inner wall of the sealing strip, and the inner wall of the sealing strip is connected to the butt strip through the elastic member, a sealing groove is opened on the inner wall of the screen changer main body, and the sealing strip and the butt strip are both slidably clamped in the inside of the sealing groove.

[0006] As a preferred technical solution of the utility model, a through-type double-hole discharge interface is provided on the front and back of the screen changer body, and mounting grooves are provided around the double-hole discharge interface.

[0007] As a preferred technical solution of the utility model, the elastic member includes: a limit sleeve, a limit plate and a limit spring, the inner wall of the docking strip is fixedly installed with the limit sleeve, the inner wall of the limit sleeve is slidably connected to the limit plate, the inner wall of the limit sleeve is fixedly installed with the limit spring, and the front end of the limit spring is fixedly connected to the tail end of the limit plate, the inner wall of the sealing strip is provided with a docking groove, and the front end of the limit plate is fixedly connected to the inner wall of the docking groove.

[0008] As an optimal technical solution of the utility model, a connecting spring is provided on the inner wall of the screen changer body, a sliding seat is fixedly installed on the front end of the connecting spring, and the sliding seat is slidably connected to the inner wall of the screen changer body, and a resistance plate is fixedly installed on the front end of the sliding seat, and the resistance plate is slidably connected to the inside of the sealing groove.

[0009] As a preferred technical solution of the utility model, a docking block is fixedly installed on the outer surface of the docking strip, and the docking block is slidably inserted into the inner wall of the docking groove.

[0010] As a preferred technical solution of the utility model, a retaining frame is sleeved and installed on the outer surface of the hydraulic cylinder, and the rear end of the retaining frame is fixedly connected to the outer surface of the connecting seat.

[0011] As a preferred technical solution of the utility model, both sides of the abutment plate are arc-shaped structures, and the middle structure is horizontal and fits tightly with the surface of the porous mesh plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model adjusts the carrier plate so that it can filter and discharge materials corresponding to the double-hole discharge interface, and the operation of the two sets of hydraulic cylinders can adjust the overlap correspondence of the porous mesh plates on the two sets of carrier plates, thereby increasing its matching usability. The movable adjustment between the sealing strip and the docking strip cooperates with the positioning clamping structure in the screen changer body, so that when filtering in the screen changer body, the connection between the carrier plate and the screen changer body can be sealed to prevent leakage of plasticized materials.

[0014] 2. The utility model can replace the porous screen plates and filter structures with different aperture sizes according to the use requirements through the replacement of the porous screen plates, so as to ensure the filtering accuracy of the screen changer and the quality of the product. The matching use of the docking hole plate position on the carrier plate adds convenience to the screen changing work of the device, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural stereogram of the utility model;

[0016] Figure 2 It is a structural stereogram of the column of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the structure of the carrier plate of the utility model;

[0018] Figure 4 It is a schematic cross-sectional view of the structure of the sealing groove of the utility model;

[0019] Figure 5 It is a schematic cross-sectional view of the structure of the resistance plate of the utility model.

[0020] In the figure: 1. Screen changer body; 2. Fixing rod; 3. Connecting seat; 4. Hydraulic cylinder; 5. Column; 6. Carrier plate; 7. Porous screen plate; 8. Filter plate; 9. Filter screen; 10. Sealing strip; 11. Docking strip; 12. Sealing groove; 13. Double-hole discharge interface; 14. Mounting groove; 15. Limiting sleeve; 16. Limiting plate; 17. Limiting spring; 18. Docking groove; 19. Connecting spring; 20. Sliding seat; 21. Resistance plate; 22. Docking block; 23. Retaining frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 , an anti-seepage column screen changer:

[0023] The invention comprises: a screen changer body 1, a fixing rod 2 is fixedly installed around one side of the screen changer body 1, two groups of arranged connecting seats 3 are fixedly installed at the front end of the fixing rod 2, a hydraulic cylinder 4 is fixedly installed on one side of the two groups of connecting seats 3, a column 5 is fixedly installed at the front end of the hydraulic cylinder 4, two groups of arranged carrier plates 6 are fixedly installed at the front end of the two groups of columns 5, and a porous mesh plate 7 is embedded and installed on the front and back of the carrier plate 6, and the porous mesh plates 7 on the two groups of carrier plates 6 connected up and down Close to each other, a filter plate 8 is fixedly inserted on the top of the carrier plate 6, a filter screen 9 is fixedly installed on the inner wall of the filter plate 8, a sealing strip 10 is fixedly installed on the front and back of the carrier plate 6, a butt joint strip 11 is slidably connected to the inner wall of the sealing strip 10, an elastic member is provided on the inner wall of the sealing strip 10, and the inner wall of the sealing strip 10 is connected to the butt joint strip 11 through the elastic member, a sealing groove 12 is opened on the inner wall of the screen changer body 1, and the sealing strip 10 and the butt joint strip 11 are both slidably clamped in the interior of the sealing groove 12;

[0024] When the device is used for filtering, the front end of the device can be extended and retracted through the operation of the hydraulic cylinder 4, and then the column 5 can be pushed and adjusted. It can be tightly plugged with the screen changer body 1. The outer surface of the column 5 and the inner wall of the screen changer body 1 must be smooth and clean, and the fit is a very small gap fit. When the two are plugged in, the carrier plate 6 is also tightly plugged into the inside of the sealing groove 12. When plugged in, the sealing strip 10 on the surface and the docking strip 11 are in close contact with the inner wall of the sealing groove 12. Under the action of the elasticity of the elastic piece in the sealing strip 10 and the connection between it and the docking strip 11, After the carrier plate 6 is plugged in, the docking strip 11 can make the inner wall of the sealing strip 10 tightly fit under the action of rebound after contacting the interference structure in the sealing groove 12, and make the porous mesh plate 7 on the carrier plate 6 correspond to the feed and discharge ports on the screen changer body 1. The sliding connection between the sealing strip 10 and the docking strip 11 can maintain the tightness of the contact between the carrier plate 6 and the screen changer body 1 after the position of the carrier plate 6 is adjusted when the carrier plate 6 is used corresponding to the feed and discharge ports, thereby achieving a better sealing effect and ensuring that no material leakage occurs when the column 5 and the carrier plate 6 move and operate in the screen changer body 1.

[0025] The front and back of the screen changer body 1 are provided with through-type double-hole discharge interfaces 13, and the four sides of the double-hole discharge interfaces 13 are provided with mounting grooves 14;

[0026] The position of the double-hole discharge interface 13 corresponds to the position of the porous mesh plate 7, so that when the corresponding surface of the double-hole discharge interface 13 on the screen changer body 1 is feeding, the plasticized material can be input through the porous mesh plate 7 and then output to the corresponding double-hole discharge interface 13.

[0027] The inner wall of the screen changer body 1 is provided with a connecting spring 19, the front end of the connecting spring 19 is fixedly mounted with a sliding seat 20, and the sliding seat 20 is slidably connected to the inner wall of the screen changer body 1, the front end of the sliding seat 20 is fixedly mounted with a contact plate 21, and the contact plate 21 is slidably connected to the inside of the sealing groove 12, both sides of the contact plate 21 are arc-shaped structures, the middle structure is horizontal and closely fits the surface of the porous screen plate 7;

[0028] Through the resilience of the connecting spring 19 and the sliding property of the sliding seat 20 in the screen changer body 1, the contact plate 21 has a certain rebound effect. The arc structures on both sides make it easy for the contact plate 21 to contract after the docking strip 11 contacts it. The arc structure can offset the blocking effect of the contact between the docking strip 11 and the contact plate 21 after contact. The horizontal shape of the middle structure fits tightly with the surface of the porous screen plate 7 to form a corresponding positioning structure to ensure the double-hole discharge interface 13 corresponding to the porous screen plate 7 and the feed interface on the corresponding surface of the screen changer body 1.

[0029] See also Figure 1 , Figure 3 and Figure 4 :

[0030] The elastic member includes: a limit sleeve 15, a limit plate 16 and a limit spring 17. The limit sleeve 15 is fixedly installed on the inner wall of the docking strip 11, and the inner wall of the limit sleeve 15 is slidably connected to the limit plate 16. The limit spring 17 is fixedly installed on the inner wall of the limit sleeve 15, and the front end of the limit spring 17 is fixedly connected to the rear end of the limit plate 16. The inner wall of the sealing strip 10 is provided with a docking groove 18, and the front end of the limit plate 16 is fixedly connected to the inner wall of the docking groove 18.

[0031] Through the resilience of the limit spring 17 and the sliding property of the limit plate 16 in the limit sleeve 15, the sliding of the limit plate 16 has resilience, so that when the docking strip 11 slides in the sealing plate 10, there is a certain rebound and reset property between the two, and the docking groove 18 is tightly fitted after contacting the docking strip 11.

[0032] A docking block 22 is fixedly mounted on the outer surface of the docking strip 11, and the docking block 22 is slidably inserted into the inner wall of the docking groove 18;

[0033] Through the clamping installation between the docking block 22 and the docking groove 18 , the tightness of the clamping between the docking strip 11 and the sealing strip 10 can be increased.

[0034] A retainer 23 is sleeved and mounted on the outer surface of the hydraulic cylinder 4, and the rear end of the retainer 23 is fixedly connected to the outer surface of the connecting seat 3;

[0035] The sleeve connection of the retaining frame 23 to the hydraulic cylinder 4 can stabilize and reinforce the hydraulic cylinder 4 when it is in use.

[0036] Working principle: through the telescopic activity of the front end of the hydraulic cylinder 4, the position of the column 5 and the carrier plate 6 can be adjusted, so that the two can be slidably connected to the inside of the screen changer body 1, and the carrier plate 6 can be divided into two parts, front and rear, so that the porous mesh plates 7 of the front and rear parts can be used interchangeably with the porous mesh plates 7 under the use and adjustment of the hydraulic cylinder 4, and the filter screen 9 is installed in the porous mesh plate 7 in a plug-in manner, so that it can filter the plasticized material after the position of the porous mesh plate 7 corresponds, and the position of the porous mesh plate 7 is limited to correspond to the double-hole discharge interface 13 for discharge work, and when the carrier plate 6 is adjusted and used, and the sliding adjustment of the column 5, the sealing strip 10 and the docking strip 11 can cooperate with the positioning and carding structure of the inner wall of the screen changer body 1, so as to maintain the tightness of the upper and lower connections in the screen changer body 1 when the carrier plate 6 is in use, and prevent leakage at the bottom.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An anti-seepage column screen changer, comprising: A screen changer body (1), characterized in that: a fixing rod (2) is fixedly installed around one side of the screen changer body (1), two groups of arranged connecting seats (3) are fixedly installed at the front end of the fixing rod (2), a hydraulic cylinder (4) is fixedly installed on one side of the two groups of connecting seats (3), a column (5) is fixedly installed at the front end of the hydraulic cylinder (4), two groups of arranged carrier plates (6) are fixedly installed at the front end of the two groups of columns (5), and a porous mesh plate (7) is embedded and installed on the front and back sides of the carrier plate (6), and the porous mesh plates (7) on the two groups of carrier plates (6) connected up and down are ) are close to each other, a filter plate (8) is fixedly inserted on the top of the carrier plate (6), a filter screen (9) is fixedly installed on the inner wall of the filter plate (8), a sealing strip (10) is fixedly installed on the front and back sides of the carrier plate (6), the inner wall of the sealing strip (10) is slidably connected to a docking strip (11), the inner wall of the sealing strip (10) is provided with an elastic member, the inner wall of the sealing strip (10) is connected to the docking strip (11) through the elastic member, a sealing groove (12) is opened on the inner wall of the screen changer body (1), and the sealing strip (10) and the docking strip (11) are both slidably engaged in the interior of the sealing groove (12).

2. The anti-seepage column screen changer according to claim 1, characterized in that: The front and back sides of the screen changer body (1) are both provided with through-type double-hole discharge interfaces (13), and the double-hole discharge interfaces (13) are both provided with mounting grooves (14) around them.

3. The anti-seepage column screen changer according to claim 1, characterized in that: The elastic member comprises: a limit sleeve (15), a limit plate (16) and a limit spring (17); the limit sleeve (15) is fixedly mounted on the inner wall of the docking strip (11); the inner wall of the limit sleeve (15) is slidably connected to the limit plate (16); the limit spring (17) is fixedly mounted on the inner wall of the limit sleeve (15); the front end of the limit spring (17) is fixedly connected to the rear end of the limit plate (16); the inner wall of the sealing strip (10) is provided with a docking groove (18); and the front end of the limit plate (16) is fixedly connected to the inner wall of the docking groove (18).

4. The anti-seepage column screen changer according to claim 1, characterized in that: The inner wall of the screen changer body (1) is provided with a connecting spring (19), the front end of the connecting spring (19) is fixedly mounted with a sliding seat (20), and the sliding seat (20) is slidably connected to the inner wall of the screen changer body (1), the front end of the sliding seat (20) is fixedly mounted with a resistance plate (21), and the resistance plate (21) is slidably connected to the inside of the sealing groove (12).

5. The anti-seepage column screen changer according to claim 1, characterized in that: A docking block (22) is fixedly mounted on the outer surface of the docking strip (11), and the docking block (22) is slidably inserted into the inner wall of the docking groove (18).

6. The anti-seepage column screen changer according to claim 1, characterized in that: A retaining frame (23) is sleeved and mounted on the outer surface of the hydraulic oil cylinder (4), and the rear end of the retaining frame (23) is fixedly connected to the outer surface of the connecting seat (3).

7. The anti-seepage column screen changer according to claim 4, characterized in that: Both sides of the abutment plate (21) are in an arc-shaped structure, and the middle structure is horizontal and fits tightly with the surface of the porous mesh plate (7).

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