An extruder for producing a plastic filter cartridge skeleton

Abstract

The application relates to an extruder for producing a plastic filter core framework, which comprises an extruder body, an extruding screw and an opening assembly, the extruding screw is located in the extruder body, the opening assembly is arranged at the discharging end of the extruder body, the opening assembly comprises an opening pipe, a plurality of opening blocks, a plurality of opening springs, an abutting column and a driving part, the opening pipe is arranged at the discharging end of the extruder body, the abutting column is coaxially arranged with the opening pipe, one end of the abutting column penetrates through the extruding screw and is arranged on the extruder body, a plurality of through holes are formed in the side wall of the opening pipe, the plurality of opening blocks and the plurality of through holes are one-to-one corresponding, the opening blocks are slidably connected in the through holes in the radial direction of the opening pipe, the plurality of opening springs are one-to-one corresponding to the plurality of opening blocks, the opening springs are used for driving the opening blocks to keep away from the abutting column, and the driving part is used for driving the plurality of opening blocks to move towards the abutting column. The application has the effect of improving the production efficiency of the plastic filter core framework.

Description

Technical Field

[0001] This application relates to the field of extruders, and more particularly to an extruder for producing plastic filter element frames. Background Technology

[0002] A filter element is a simple device for purifying raw fluids and separating resources. A filter element consists of a filter element shell, a filter element frame, and a filter membrane. The filter element frame and the filter element shell work together to support the filter membrane. Currently, filter elements include metal filter element frames and plastic filter element frames. Due to their light weight, plastic filter element frames are widely used.

[0003] Currently, plastic filter cartridge frames are generally produced by continuous extrusion on a production line to form a plastic mesh plate with a mesh-like structure. High-performance modified adhesive resin is then used to bond the two sides of the plastic mesh plate together to form a tubular plastic filter cartridge frame. The production process requires the material to be moved between multiple machines, which greatly prolongs the production time and results in low production efficiency. Summary of the Invention

[0004] To improve the production efficiency of plastic filter element frames, this application provides an extruder for producing plastic filter element frames.

[0005] This application provides an extruder for producing plastic filter element frames, which adopts the following technical solution:

[0006] An extruder for producing plastic filter element frames includes an extruder body, an extrusion screw, and an opening assembly. The extrusion screw is located within the extruder body, and the opening assembly is disposed at the discharge end of the extruder body. The opening assembly includes an opening tube, a plurality of opening blocks, a plurality of opening springs, a stop post, and a driving part. The opening tube is disposed at the discharge end of the extruder body, and the stop post is coaxially disposed with the opening tube. One end of the stop post passes through the extrusion screw and is disposed on the extruder body. The side wall of the opening tube has a plurality of through holes. The plurality of opening blocks correspond one-to-one with the plurality of through holes. The opening blocks slide along the radial direction of the opening tube and are connected to the through holes. The plurality of opening springs correspond one-to-one with the plurality of opening blocks. The opening springs are used to drive the opening blocks to keep them away from the stop post, and the driving part is used to drive the plurality of opening blocks to move toward the stop post.

[0007] By adopting the above technical solution, the extruder extrudes plastic raw materials from the extruder outlet. Because the extrusion end is equipped with an opening tube and an abutment post inside the opening tube, the molten plastic raw material can only pass between the abutment post and the opening tube, directly forming a tubular shape. The abutment post penetrates the extrusion screw and is located on the extruder body, preventing it from rotating with the screw. The plastic raw material undergoes a linear extrusion motion between the opening tube and the abutment post. The operator can activate the drive unit, which moves several opening blocks against the spring force of the opening springs towards the abutment post, abutting them against the post. This forces the molten plastic raw material to bypass the opening blocks, forming an opening. Multiple opening blocks create a circumferential array of openings in the tubular plastic. Through the repeated reciprocating motion of the opening blocks, a plastic filter element skeleton is formed. The extruder, through the opening assembly, achieves single-device manufacturing of the plastic filter element skeleton, reducing multi-process operations in production and improving production efficiency.

[0008] Optionally, the driving part includes an opening ring and a driving member. The opening ring is sleeved on the opening tube and slides along the axial direction of the opening tube. A guide slope is provided on the opening ring. The guide slope is used to guide the opening block to move in the direction of the abutting post. The driving member is used to drive the opening ring to move in the direction of the opening block.

[0009] By adopting the above technical solution, the driving component drives the opening ring to move. The opening ring moves relative to the opening tube. The guide slope on the opening ring abuts against the opening block and moves the opening block toward the abutting post until the opening block is pressed against the abutting post. This allows the molten material to bypass the abutting post and form an opening. The driving part has a simple structure and enables multiple opening blocks to operate simultaneously, thus improving work efficiency.

[0010] Optionally, the driving component includes an abutment wheel, a drive motor, a first drive disk, and a first arc-shaped block. The axial direction of the abutment wheel is parallel to the radial direction of the perforated ring. The abutment wheel is rotatably connected to the outer side wall of the perforated ring. The drive motor is mounted on the extruder body. The first drive disk is mounted on the output shaft of the drive motor. The first arc-shaped block is mounted on the side wall of the first drive disk. The outer arc surface of the first arc-shaped block is coaxially arranged with the first drive disk. Both the first arc-shaped block and the first drive disk are used to abut against the side wall of the abutment wheel.

[0011] By adopting the above technical solution, the drive motor drives the first drive disk to rotate, and the first drive disk drives the first arc block to move. The diameter of the first drive disk is smaller than the diameter of the outer arc surface of the first arc block. When the drive motor causes the first arc block to abut against the abutting wheel, the abutting wheel drives the opening ring to move. The opening ring overcomes the elastic force of the opening spring. Under the guidance of the opening ring guide slope, the opening block abuts against the abutting post, allowing the raw material to move around the opening block. The drive motor continues to drive the first drive disk to rotate. After the first arc block, which was originally abutting against the abutting wheel, separates from the abutting wheel, the opening spring releases its elastic force. Under the action of the guide slope, the opening block drives the opening ring to move and abuts the abutting wheel against the first drive disk. At the same time, the opening block moves away from the abutting post, allowing the raw material to form a tubular shape again and form an array of openings. The drive component has a reasonable structure and realizes the array of openings in the plastic filter element skeleton.

[0012] Optionally, the driving component further includes a second driving disk and a second arc-shaped block. The second driving disk is coaxially arranged with the first driving disk and rotatably connected to the first driving disk. The second arc-shaped block is disposed on the side wall of the second driving disk. The outer surface of the second arc-shaped block is coaxially arranged with the second driving disk, and the outer arc diameter of the second arc-shaped block is the same as the outer arc diameter of the first arc-shaped block.

[0013] By adopting the above technical solution, when the ratio of the plastic edge to the opening of the plastic filter element frame needs to be adjusted, the operator can rotate the second drive disk, which drives the second arc block to rotate. When the abutting wheel seamlessly connects with the first arc block and the second arc block, the time for the opening block to abut against the abutting post can be extended, thus increasing the length of the opening and reducing the time for the abutting wheel to contact the first and second drive disks, thereby reducing the width of the plastic edge of the plastic filter element. By changing the angle between the first and second drive disks, plastic filter element frames of different strengths can be manufactured.

[0014] Optionally, the driving component further includes a plug rod and a plug block. The second driving disk has an arc-shaped sliding groove. The plug block is disposed on the first driving disk and extends out of the arc-shaped sliding groove. The second driving disk has a plurality of plug holes distributed along the length direction of the arc-shaped sliding groove. The plug rod is slidably connected to the plug block, and the plug holes are used to engage the plug rod.

[0015] By adopting the above technical solution, when the operator needs to adjust the angle between the first drive disk and the second drive disk, the operator can slide the plug rod out of the plug hole and rotate the second drive disk. The second drive disk rotates relative to the first drive disk. When the second drive disk moves to a suitable position, the operator inserts the plug rod into the plug hole to fix the first drive disk and the second drive disk. Since the second arc-shaped block will be subjected to the force of the perforated spring on the abutting wheel when it abuts the abutting wheel, it is easy for the second arc-shaped block to drive the second drive disk to rotate relative to the first drive disk. Through the cooperation of the plug rod and the plug hole, the movement of the second arc-shaped block is reduced, and the reliability of the drive component is improved.

[0016] Optionally, the perforation assembly further includes an auxiliary part for changing the perforation arrangement of the plastic filter element skeleton. The auxiliary part includes an auxiliary ring, a plurality of auxiliary perforation blocks, a plurality of auxiliary springs, and a linkage. The perforation tube has a plurality of auxiliary through holes, which are distributed circumferentially along the axis of the perforation tube. The auxiliary through holes are staggered with the through holes and are distributed along the length of the perforation tube. The auxiliary perforation blocks correspond one-to-one with the auxiliary through holes. The auxiliary perforation blocks are slidably connected to the auxiliary through holes along the radial direction of the perforation tube. The auxiliary springs correspond one-to-one with the auxiliary perforation blocks and are used to drive the auxiliary perforation blocks away from the abutment post. The auxiliary ring is slidably connected to the perforation tube along the axis of the perforation tube. The auxiliary ring has a guide slope, which is used to guide the auxiliary blocks to move toward the abutment post. The linkage is used to move the auxiliary ring and the perforation ring synchronously.

[0017] By adopting the above technical solution, workers can produce plastic filter element frames with denser openings through the auxiliary part. Workers connect the auxiliary ring and the perforation ring via a linkage, allowing them to move synchronously. The drive unit moves the abutment wheel, which in turn moves the perforation ring. The perforation ring, guided by a inclined plane, moves the perforation block against the spring force of the perforation spring towards the abutment post and presses against it. The perforation ring then moves the auxiliary ring, which, guided by an inclined plane, moves the auxiliary perforation block against the spring force of the auxiliary spring towards the abutment post and presses against it. Because the molten tubular material passes sequentially through the auxiliary perforation block and the perforation block, and because the auxiliary perforation blocks are staggered, the openings in the auxiliary perforation blocks are located between the perforation blocks, resulting in a denser clamping pattern in the plastic filter element frame. This allows the extruder to produce different types of plastic filter element frames, improving the equipment's applicability.

[0018] Optionally, the linkage includes a rotating rod, a linkage plate, a snap-fit ​​block, a locking bolt, and a locking plate. The length direction of the rotating rod is parallel to the radial direction of the auxiliary ring. One end of the rotating rod is disposed on the outer side wall of the auxiliary ring. One end of the linkage plate is rotatably connected to the rotating rod along the tangent direction of the auxiliary ring. A snap-fit ​​groove is provided on the linkage plate. The snap-fit ​​block is disposed on the outer side wall of the perforated ring. The snap-fit ​​groove is used to fit onto the snap-fit ​​block. The locking bolt is threadedly connected to the locking plate. The locking plate is slidably connected to the snap-fit ​​groove. The locking plate is rotatably connected to the locking bolt. The locking plate is used to abut against the snap-fit ​​block.

[0019] By adopting the above technical solution, when it is necessary to produce plastic filter element frames with relatively dense openings, the operator can drive the rotating rod to rotate, which in turn drives the linkage plate to rotate. The linkage plate is then fitted onto the snap-fit ​​block. After that, by rotating the locking bolt, the locking bolt drives the locking plate to move, and the locking plate abuts against the snap-fit ​​block, thus completing the fixation of the auxiliary ring and the opening ring. The linkage structure is simple and easy for operators to operate.

[0020] Optionally, the extruder body is further provided with a cooling assembly, which includes a cooling pipe, a cooling spiral tube, a water tank, and a submersible pump. The cooling pipe is coaxially arranged with the perforated tube, and one end of the cooling pipe is located on the end of the perforated tube away from the extruder body. The cooling pipe has a receiving cavity inside, and the cooling spiral tube is located in the receiving cavity. The water tank is arranged on the extruder body, and the submersible pump is located in the water tank. The water inlet end of the cooling spiral tube is connected to the submersible pump, and the water outlet end of the cooling spiral tube leads into the water tank.

[0021] By adopting the above technical solution, since the temperature of the molten plastic filter element skeleton is high, the plastic filter element skeleton is prone to deformation. The cooling component can effectively reduce the temperature of the filter element skeleton and improve its strength. The submersible pump circulates water from the tank into the cooling spiral tube, which is located inside the cooling pipe. The cooling spiral tube cools the cooling pipe that was originally in contact with the filter element skeleton. Through heat conduction, some of the heat on the filter element skeleton is transferred to the cooling spiral tube, thus lowering the temperature of the filter element skeleton. The water that has absorbed heat in the cooling spiral tube re-enters the tank. Water has a high specific heat capacity, which can effectively reduce the temperature of the filter element skeleton. The submersible pump allows the water in the tank to be recycled, reducing energy waste.

[0022] Optionally, heat dissipation fins are provided on the outer wall of the water tank.

[0023] By adopting the above technical solution, the heat dissipation fins effectively release the heat absorbed by the water in the water tank, reduce the accumulation of heat in the water tank, and improve the cooling effect of the cooling components.

[0024] Optionally, the extruder body is provided with a rotating component for driving the extrusion screw to rotate. The rotating component includes a first bevel gear, a second bevel gear, and a rotating motor. One end of the extrusion screw extends out of the extruder body. The first bevel gear is coaxially arranged with the extrusion screw and is mounted on the extrusion screw. The rotating motor is mounted on the extruder body, and the second bevel gear is mounted on the output shaft of the rotating motor. The second bevel gear meshes with the first bevel gear.

[0025] By adopting the above technical solution, the rotating motor drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the extrusion screw to rotate. The rotating part has a simple structure, which makes it easy to achieve the effect of extruding raw materials by the extrusion screw.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The perforated assembly enables the extruder to produce plastic filter element frames;

[0028] 2. The drive unit enables control over the opening length of the plastic filter element frame;

[0029] 3. The linkage mechanism enables the production of plastic filter element frames of different specifications;

[0030] 4. The cooling assembly is used to cool the plastic filter element frame, which is still in a molten state after production. Attached Figure Description

[0031] Figure 1 It is an extruder used to produce plastic filter element frames.

[0032] Figure 2 yes Figure 1 A cross-sectional view of the extrusion tube, used to show the mating structure of the abutment post and the extrusion screw.

[0033] Figure 3 yes Figure 1 A schematic diagram of the structure of the centrally located opening component.

[0034] Figure 4 yes Figure 3 A cross-sectional view of the perforated tube, used to show the fit between the auxiliary part and the perforated tube.

[0035] Figure 5 yes Figure 3 The enlarged view at point A in the middle is used to show the structural schematic diagram of the drive component.

[0036] Figure 6 yes Figure 1 A schematic diagram of the cooling system.

[0037] Reference numerals: 1. Extruder body; 11. Frame; 12. Extrusion tube; 13. Feed inlet; 2. Extrusion screw; 3. Opening assembly; 31. Opening tube; 311. Through hole; 312. Auxiliary through hole; 32. Opening block; 33. Opening spring; 34. Abutment post; 341. Mating post; 342. Fixing post; 35. Driving part; 351. Opening ring; 352. Driving component; 353. Receiving groove; 354. Guide slope; 36. Auxiliary part; 361. Auxiliary ring; 362. Auxiliary opening block; 363. Auxiliary spring; 364. Linkage component; 365. Mating groove; 366. Guide slope; 4. Cooling Components; 41. Cooling pipe; 411. Receiving cavity; 42. Cooling spiral pipe; 43. Water tank; 44. Submersible pump; 45. Heat dissipation fins; 5. Rotating component; 51. First bevel gear; 52. Second bevel gear; 53. Rotating motor; 61. Abutting wheel; 62. Drive motor; 63. First drive disc; 64. First arc-shaped block; 65. Second drive disc; 651. Arc-shaped slide groove; 652. Insertion hole; 66. Second arc-shaped block; 67. Insertion rod; 68. Insertion block; 69. Abutting rod; 7. Rotating rod; 71. Linkage plate; 711. Snap-fit ​​groove; 72. Snap-fit ​​block; 73. Locking bolt; 74. Locking plate. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0039] This application discloses an extruder for producing plastic filter element frames. (Refer to...) Figure 1 and Figure 2 An extruder for producing plastic filter element frames includes an extruder body 1, an extrusion screw 2, an opening assembly 3, a cooling assembly 4, and a rotating component 5. The extruder body 1 includes a frame 11 and an extrusion tube 12. The extrusion tube 12 is horizontally arranged and fixedly mounted on the upper end face of the frame 11. A feed port 13 is provided on the side wall of the extrusion tube 12, and the feed port 13 communicates with the interior of the extrusion tube 12. The end of the extrusion tube 12 near the feed port 13 is sealed. The extrusion screw 2 is coaxially arranged with the extrusion tube 12 and is located inside the extrusion tube 12. The spiral blades of the extrusion screw 2 abut against the extrusion tube. The inner wall of 12 has one end of the extrusion screw 2 passing through the sealed end of the extrusion tube 12. The rotating component 5 includes a first bevel gear 51, a second bevel gear 52, and a rotating motor 53. The first bevel gear 51 is coaxially arranged with the extrusion screw 2 and is fixedly arranged on the end of the extrusion screw 2 that passes through the extrusion tube 12. The rotating motor 53 is fixedly arranged on the frame 11 or the same frame. The output shaft of the rotating motor 53 is vertically arranged. The second bevel gear 52 is horizontally arranged. The lower end face of the second bevel gear 52 is fixedly arranged on the output shaft of the rotating motor 53. The second bevel gear 52 meshes with the first bevel gear 51.

[0040] refer to Figure 2 and Figure 3 The opening assembly 3 includes an opening tube 31, several opening blocks 32, several opening springs 33, an abutment post 34, a driving part 35 for driving several opening blocks 32 to move simultaneously toward the abutment post 34, and an auxiliary part 36 for increasing the number of openings. The abutment post 34 includes a mating post 341 and a fixing post 342. The fixing post 342 is coaxially arranged with the extrusion screw 2. One end of the fixing post 342 passes through the extrusion screw 2 and exits through the extrusion tube 12. A fixing block is fixedly arranged on the extrusion tube 12. One end of the fixing post 342 is fixedly arranged on the fixing block. The mating post 341 is coaxially arranged with the fixing post 342. One end of the mating post 341 is fixedly arranged on the end of the fixing post 342 away from the fixing block.

[0041] refer to Figure 3 and Figure 4 The perforated tube 31 is coaxially arranged with the extrusion tube 12. One end of the perforated tube 31 is fixedly set at the end of the extrusion tube 12 away from the feed port 13. The mating column 341 is located inside the perforated tube 31. The perforated tube 31 has several through holes 311. The several through holes 311 are evenly distributed circumferentially along the axis of the perforated tube 31. The through holes 311 extend in the radial direction of the perforated tube 31 and penetrate the perforated tube 31. Several perforated blocks 32 correspond one-to-one with several through holes 311. The perforated blocks 32 are slidably connected in the through holes 311. Several perforated springs 33 correspond one-to-one with several perforated blocks 32. The length direction of the perforated springs 33 is parallel to the radial direction of the perforated tube 31. One end of the perforated spring is fixedly set on the outer wall of the perforated tube 31, and the other end of the perforated spring 33 is fixedly set on the perforated block 32.

[0042] refer to Figure 4 and Figure 5The driving unit 35 includes an opening ring 351 and a driving component 352. The driving component 352 includes an abutment wheel 61, a drive motor 62, a first drive disc 63, a first arc-shaped block 64, a second drive disc 65, a second arc-shaped block 66, an insertion rod 67, an insertion block 68, and an abutment rod 69. The output shaft of the drive motor 62 is vertically arranged and located on the side of the opening block 32 away from the extrusion tube 12. The drive motor 62 is fixedly mounted on the frame 11. The first drive disc 63 is coaxially arranged with the output shaft of the drive motor 62 and is fixedly mounted on the output shaft of the drive motor 62. The first arc-shaped block 64 is horizontally arranged and fixedly mounted on the outer side wall of the first drive disc 63. The outer arc surface of the first arc-shaped block 64 is coaxially arranged with the first drive disc 63. The second drive disc 65 is coaxially arranged with the first drive disc 63. 5 is rotatably connected to the first drive disk 63. The second arc-shaped block 66 is horizontally set and fixedly set on the outer side wall of the second drive disk 65. The outer arc surface of the second arc-shaped block 66 is coaxially set with the second drive disk 65. The diameter of the outer arc surface of the second arc-shaped block 66 is the same as the diameter of the outer arc surface of the first arc-shaped block 64. The second drive disk 65 has an arc-shaped groove 651. The arc-shaped groove 651 is coaxially set with the second drive disk 65 and passes through the second drive disk 65. The plug-in block 68 is fixedly set on the upper end face of the first drive disk 63 and passes through the arc-shaped groove 651. The second drive disk 65 has a plurality of plug-in holes 652. The plug-in holes 652 are evenly distributed along the length direction of the arc-shaped groove 651. The plug rod 67 is vertically set and slidably connected to the plug-in block 68. The plug rod 67 is used to plug into the plug-in hole 652.

[0043] refer to Figure 4 and Figure 5 The perforated ring 351 is coaxially arranged with the perforated tube 31 and is sleeved on the perforated tube 31. The perforated ring 351 is located between the perforated block 32 and the drive motor 62. The end face of the perforated ring 351 facing the perforated block 32 has a receiving groove 353. The receiving groove 353 extends along the axial direction of the perforated ring 351 and penetrates the inner sidewall of the perforated ring 351. A guide slope 35 is formed between the groove sidewall and the bottom of the receiving groove 353. 4. The abutment rod 69 is vertically set, and the upper end face of the abutment rod 69 is fixedly set on the outer wall of the perforated ring 351. The abutment rod 69 is slidably connected to the frame 11 along the sliding direction of the perforated ring 351. The abutment wheel 61 is coaxially set with the abutment rod 69 and is rotatably connected to the abutment rod 69. The abutment wheel 61 is used to abut against the outer wall of the first drive disk 63, the outer wall of the second drive disk 65, the outer arc surface of the first arc block 64, and the outer arc surface of the second arc surface.

[0044] refer to Figure 3 and Figure 4The auxiliary part 36 includes an auxiliary ring 361, a plurality of auxiliary perforation blocks 362, a plurality of auxiliary springs 363, and a linkage 364. The perforated tube 31 has a plurality of auxiliary through holes 312, which are evenly distributed circumferentially along the axis of the perforated tube 31. The auxiliary through holes 312 extend radially through the perforated tube 31, and are intersecting with the through holes 311. The auxiliary through holes 312 are located between the through holes 311 and the extrusion tube 12. A plurality of auxiliary perforation blocks 362 correspond one-to-one with a plurality of auxiliary through holes 312. The auxiliary perforation blocks 362 slide and connect within the auxiliary through holes 312 along the radial direction of the perforated tube 31. A plurality of auxiliary springs 363 are connected to a plurality of auxiliary perforations. Blocks 362 correspond one-to-one. The length direction of the auxiliary spring 363 is parallel to the radial direction of the perforated tube 31. One end of the auxiliary spring 363 is fixedly set on the outer side wall of the perforated tube 31, and the other end of the auxiliary spring 363 is fixedly set on the auxiliary perforated block 362. The auxiliary ring 361 is coaxially set with the perforated tube 31 and is slidably connected to the perforated tube 31. The auxiliary ring 361 is located between the auxiliary perforated block 362 and the perforated block 32. The end face of the auxiliary ring 361 facing the auxiliary perforated block 362 is provided with a mating groove 365. The mating groove 365 extends along the axial direction of the auxiliary ring 361 and penetrates the inner side wall of the auxiliary ring 361. A guide slope 366 is provided between the groove side wall and the groove bottom of the mating groove 365.

[0045] refer to Figure 2 and Figure 3 The linkage component 364 includes a rotating rod 7, a linkage plate 71, a locking block 72, a locking bolt 73, and a locking plate 74. The length direction of the rotating rod 7 is parallel to the radial direction of the auxiliary ring 361. One end of the rotating rod 7 is rotatably connected to the outer wall of the auxiliary ring 361 along the radial direction. The linkage plate 71 is vertically arranged, and one end of the linkage plate 71 is rotatably connected to the rotating rod 7 along the radial direction. A locking groove 711 is provided on the end face of the linkage plate 71. The connecting groove 711 passes through the linkage plate 71. The length direction of the locking bolt 73 is parallel to the length direction of the linkage plate 71. The locking bolt 73 is threaded onto the linkage plate 71. The tail of the locking bolt 73 is inserted into the snap-fit ​​groove 711. The locking plate 74 slides along the length direction of the linkage plate 71 and is connected to the snap-fit ​​groove 711. The locking plate 74 is rotatably connected to the tail end of the locking bolt 73. The snap-fit ​​block 72 is fixedly set on the outer wall of the opening ring 351. The snap-fit ​​groove is used to snap-fit ​​the snap-fit ​​block 72.

[0046] refer to Figure 2 and Figure 6The cooling assembly 4 includes a cooling pipe 41, a cooling spiral pipe 42, a water tank 43, and a submersible pump 44. The water tank 43 is fixedly mounted on the frame 11, and heat dissipation fins 45 are fixedly mounted on the periphery of the water tank 43. The submersible pump 44 is fixedly mounted on the bottom wall of the water tank 43. The cooling pipe 41 is coaxially mounted with the perforated pipe 31. One end of the cooling pipe 41 is fixedly mounted on the end of the perforated pipe 31 away from the extrusion pipe 12. A receiving cavity 411 is opened in the cooling pipe 41. The cooling spiral pipe 42 is located in the receiving cavity 411. The water inlet end of the cooling spiral pipe 42 is connected to the submersible pump 44, and the water outlet end of the cooling spiral pipe 42 is connected to the water tank 43.

[0047] The implementation principle of an extruder for producing plastic filter element frames according to an embodiment of this application is as follows: The operator places molten raw material into the extrusion tube 12 through the feed inlet 13. The rotating motor 53 drives the second bevel gear 52 to rotate, which in turn drives the first bevel gear 51 to rotate. The first bevel gear 51 then drives the extrusion screw 2 to rotate. The extrusion screw 2 drives the raw material to move uniformly towards the outlet end of the extrusion tube 12. The raw material at the outlet of the extrusion tube 12 enters the perforated tube 31. Through the action of the perforated tube 31 and the mating column 341, the raw material forms a cylindrical shape. Then, the drive motor 62 drives the first drive disc 63 and the second drive disc 65 to rotate. The drive disc 63 drives the first arc-shaped block 64, and the second drive disc 65 drives the second arc-shaped block 66 to work together with the abutting wheel 61. The abutting wheel 61 drives the opening ring 351 to move. The opening ring 351 drives several opening blocks 32 to overcome the elastic force of the opening spring 33 and abut against the mating column 341 through the guide inclined surface 354, opening the original circular raw material. The drive motor 62 rotates, causing the opening blocks 32 to reciprocate and form the filter element skeleton. At this time, the filter element skeleton is in a molten state. The molten filter element skeleton enters the cooling pipe 41. The cooling spiral pipe 42 absorbs the heat of the molten filter element skeleton, reduces the temperature, and allows the filter element skeleton to be shaped.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An extruder for producing plastic filter element frames, characterized in that: The extruder assembly includes an extruder body (1), an extrusion screw (2), and an opening assembly (3). The extrusion screw (2) is located inside the extruder body (1). The opening assembly (3) is located at the discharge end of the extruder body (1). The opening assembly (3) includes an opening tube (31), several opening blocks (32), several opening springs (33), abutment posts (34), and a driving part (35). The opening tube (31) is located at the discharge end of the extruder body (1). The abutment posts (34) are coaxially arranged with the opening tube (31). One end of the abutment posts (34) passes through the extrusion screw (2) and is located at the discharge end of the extruder body (1). On the extruder body (1), the side wall of the perforated tube (31) is provided with a plurality of through holes (311), a plurality of perforated blocks (32) correspond one-to-one with a plurality of through holes (311), the perforated blocks (32) slide and connect to the through holes (311) along the radial direction of the perforated tube (31), a plurality of perforated springs (33) correspond one-to-one with a plurality of perforated blocks (32), the perforated springs (33) are used to drive the perforated blocks (32) to stay away from the abutting post (34), and the driving part (35) is used to drive the plurality of perforated blocks (32) to move toward the abutting post (34).

2. An extruder for producing plastic filter element frames according to claim 1, characterized in that: The driving part (35) includes an opening ring (351) and a driving member (352). The opening ring (351) is sleeved on the opening tube (31). The opening ring (351) slides along the axial direction of the opening tube (31). A guide slope (354) is provided on the opening ring (351). The guide slope (354) is used to guide the opening block (32) to move toward the abutting post (34). The driving member (352) is used to drive the opening ring (351) to move toward the opening block (32).

3. An extruder for producing plastic filter element frames according to claim 2, characterized in that: The driving component (352) includes an abutment wheel (61), a drive motor (62), a first drive disc (63), a first arc-shaped block (64), and an abutment rod (69). The abutment rod (69) is vertically arranged, and its upper end face is fixedly disposed on the outer side wall of the perforated ring (351). The axial direction of the abutment wheel (61) is parallel to the radial direction of the perforated ring (351). The abutment rod (69) is slidably connected to the frame (11) along the sliding direction of the perforated ring (351). The abutment wheel (61) and the abutment rod (69) are aligned with each other. The shaft is set, the abutting wheel (61) is rotatably connected to the abutting rod (69), the drive motor (62) is set on the extruder body (1), the first drive disk (63) is set on the output shaft of the drive motor (62), the first arc block (64) is set on the side wall of the first drive disk (63), the outer arc surface of the first arc block (64) is coaxially set with the first drive disk (63), and the first arc block (64) and the first drive disk (63) are both used to abut against the side wall of the abutting wheel (61).

4. An extruder for producing plastic filter element frames according to claim 3, characterized in that: The driving component (352) further includes a second driving disk (65) and a second arc-shaped block (66). The second driving disk (65) is coaxially arranged with the first driving disk (63) and is rotatably connected to the first driving disk (63). The second arc-shaped block (66) is disposed on the side wall of the second driving disk (65). The outer surface of the second arc-shaped block (66) is coaxially arranged with the second driving disk (65), and the outer arc diameter of the second arc-shaped block (66) is the same as the outer arc diameter of the first arc-shaped block (64).

5. An extruder for producing plastic filter element frames according to claim 4, characterized in that: The driving component (352) further includes a plug rod (67) and a plug block (68). An arc-shaped groove (651) is provided on the second driving disk (65). The plug block (68) is disposed on the first driving disk (63) and extends through the arc-shaped groove (651). A plurality of plug holes (652) are provided on the second driving disk (65). The plug holes (652) are distributed along the length direction of the arc-shaped groove (651). The plug rod (67) is slidably connected to the plug block (68). The plug holes (652) are used to engage the plug rod (67).

6. An extruder for producing plastic filter element frames according to claim 2, characterized in that: The perforation assembly (3) further includes an auxiliary part (36) for changing the perforation arrangement of the plastic filter element skeleton. The auxiliary part (36) includes an auxiliary ring (361), a plurality of auxiliary perforation blocks (362), a plurality of auxiliary springs (363), and a linkage (364). A plurality of auxiliary through holes (312) are provided on the perforation tube (31). The plurality of auxiliary through holes (312) are distributed circumferentially along the axis of the perforation tube (31). The plurality of auxiliary through holes (312) and the plurality of through holes (311) are staggered and distributed along the length direction of the perforation tube (31). The plurality of auxiliary perforation blocks (362) correspond one-to-one with the plurality of auxiliary through holes (312). The auxiliary opening block (362) is slidably connected to the auxiliary through hole (312) along the radial direction of the opening tube (31). A plurality of auxiliary springs (363) correspond one-to-one with a plurality of the auxiliary opening blocks (362). The auxiliary springs (363) are used to drive the auxiliary opening blocks (362) away from the abutment post (34). The auxiliary ring (361) is slidably connected to the opening tube (31) along the axial direction of the opening tube (31). The auxiliary ring (361) is provided with a guide slope (366). The guide slope (366) is used to guide a plurality of auxiliary blocks to move toward the abutment post (34). The linkage (364) is used to move the auxiliary ring (361) and the opening ring (351) synchronously.

7. An extruder for producing plastic filter element frames according to claim 6, characterized in that: The linkage component (364) includes a rotating rod (7), a linkage plate (71), a snap-fit ​​block (72), a locking bolt (73), and a locking plate (74). The length direction of the rotating rod (7) is parallel to the radial direction of the auxiliary ring (361). One end of the rotating rod (7) is disposed on the outer side wall of the auxiliary ring (361). One end of the linkage plate (71) is rotatably connected to the rotating rod (7) along the tangential direction of the auxiliary ring (361). The snap-fit ​​groove (711) is provided on the snap-fit ​​block (72), which is located on the outer side wall of the opening ring (351). The snap-fit ​​groove (711) is used to fit onto the snap-fit ​​block (72). The locking bolt (73) is threadedly connected to the locking plate (74). The locking plate (74) is slidably connected to the snap-fit ​​groove (711). The locking plate (74) is rotatably connected to the locking bolt (73). The locking plate (74) is used to press against the snap-fit ​​block (72).

8. An extruder for producing plastic filter element frames according to claim 1, characterized in that: The extruder body (1) is also provided with a cooling assembly (4), which includes a cooling pipe (41), a cooling spiral pipe (42), a water tank (43), and a submersible pump (44). The cooling pipe (41) is coaxially arranged with the perforated pipe (31). One end of the cooling pipe (41) is located on the end of the perforated pipe (31) away from the extruder body (1). The cooling pipe (41) has a receiving cavity (411) inside. The cooling spiral pipe (42) is located in the receiving cavity (411). The water tank (43) is arranged on the extruder body (1). The submersible pump (44) is located in the water tank (43). The water inlet end of the cooling spiral pipe (42) is connected to the submersible pump (44). The water outlet end of the cooling spiral pipe (42) is connected to the water tank (43).

9. An extruder for producing plastic filter element frames according to claim 8, characterized in that: The water tank (43) is provided with heat dissipation fins (45) on its outer wall.

10. An extruder for producing plastic filter element frames according to claim 1, characterized in that: The extruder body (1) is provided with a rotating component (5) for driving the extrusion screw (2) to rotate. The rotating component (5) includes a first bevel gear (51), a second bevel gear (52), and a rotating motor (53). One end of the extrusion screw (2) extends out of the extruder body (1). The first bevel gear (51) is coaxially arranged with the extrusion screw (2). The first bevel gear (51) is arranged on the extrusion screw (2). The rotating motor (53) is arranged on the extruder body (1). The second bevel gear (52) is arranged on the output shaft of the rotating motor (53). The second bevel gear (52) meshes with the first bevel gear (51).

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