A discharge device of an injection molding machine for producing urinary catheters

Abstract

The present invention relates to the technical field of catheter production, and in particular to a discharge device of an injection molding machine for catheter production. The technical scheme includes: a support component, a conveying component installed on the support component, and an injection mold component, wherein an injection mold linkage component linked to the injection mold component is installed on the top of the support component. The present invention buffers the inflow of injection liquid within a controllable range by changing the size of the filter pores of the corresponding limiting hole edge plate and the elasticity of the airbag limiting edge, thereby avoiding damage to the filter screen, and as the single injection liquid flows into the mold of the processing mold placement tube, the first shunt filter hole plate and the second shunt filter hole plate are separated, and the filter pores on one side of the second shunt filter hole plate become larger, and impurities can flow normally from there, and the impurities are pushed from the second shunt filter hole plate to flow between the first shunt filter hole plate and the second shunt filter hole plate, thereby completely removing the impurities, thereby avoiding the adverse effects of impurity residues on the next flow of catheter materials.

Description

Technical Field

[0001] The invention relates to the technical field of urinary catheter production, and in particular to a discharge device of an injection molding machine for producing urinary catheters. Background Art

[0002] A urinary catheter is a medical device that is mainly used to drain urine and help patients urinate. It is usually inserted into the patient's bladder and drains urine to an external collection bag through a tube, thereby relieving bladder pressure, helping patients urinate, and playing a role in drainage and excretion of urine in certain medical situations. The urinary catheter is usually processed using the discharge device of the injection molding machine. The function of the discharge device of the injection molding machine used in the production of the urinary catheter is to remove the urinary catheter product formed by the injection molding machine from the injection mold and carry out the next step of processing.

[0003] In the patent document with the publication number CN111941746B, a device for preventing the nozzle and mold inlet of an injection molding machine from being blocked for the production of plastic pipe fittings is disclosed. The technical problem to be solved by the present invention is that the filter tank of the comparative case is prone to accumulation of impurities after being used for a period of time. In order to solve the above technical problem, it includes a main column, and the outer side of the main column is evenly spaced with discharge troughs, the right side of the main column is fixedly connected with a filter spring, and the right side of the filter spring is fixedly connected with a pressure plate, and then when in use, the raw material is filtered through the filter holes of the filter column and enters the discharge trough, thereby preventing impurities in the raw material from entering the nozzle of the injection molding machine and the mold, thereby avoiding downtime for maintenance caused by blockage of the nozzle and mold inlet of the injection molding machine.

[0004] When the above device is in use, the filter tank is cleaned by the pressure plate, and the waste after cleaning is still retained inside the equipment. For products such as catheters, which are mass-produced, the above device only has a positive effect on the circulation of a single catheter. As more and more waste accumulates, it will always affect the normal output of the injection liquid.

[0005] Therefore, the present application proposes a discharge device for an injection molding machine for producing urinary catheters. Summary of the invention

[0006] The purpose of the present invention is to address the problem that in the background technology, the waste materials after cleaning still remain inside the equipment. For products such as catheters, which are mass-produced, the above-mentioned device only has a positive effect on the circulation of a single catheter. As for the problem that more and more waste materials accumulate, it will always affect the normal output of the injection molding liquid. Therefore, a discharge device of an injection molding machine for the production of catheters is proposed.

[0007] The technical solution of the present invention is: a discharge device of an injection molding machine for producing urinary catheters, comprising a support assembly, a conveying assembly mounted on the support assembly, and an injection mold assembly, wherein an injection mold linkage assembly linked to the injection mold assembly is mounted on the top of the support assembly;

[0008] A double-layer inter-detachable filter screen assembly for adjusting the size of the filter pores is installed inside the injection mold assembly and the conveying assembly;

[0009] The support assembly includes a processing table, and the conveying assembly includes a sealed processing box fixedly installed on the top of the processing table, and the sealed processing box also includes a large frame and a small frame, and a threaded conveying rod is rotatably connected inside the small frame of the sealed processing box;

[0010] The injection mold assembly comprises a limiting slide plate, the bottom of which is slidably connected to a positioning slideway fixedly connected to the processing table, and one side of the limiting slide plate is rotatably connected to a processing mold placement tube;

[0011] The double-layer interdetachable filter mesh assembly includes a second diverter filter plate fixedly connected to the inner wall of a small frame of a sealed processing box, a circulation air groove is opened inside the second diverter filter plate, an air bag limiting edge is fixedly connected to the bottom of the second diverter filter plate, and the circulation air groove and the air bag limiting edge are arranged in a connected state, a first diverter filter plate is inserted into the circulation air groove, a sealing push ring is fixedly connected to the side of the first diverter filter plate facing the circulation air groove, the first diverter filter plate is fixedly installed on one side of a processing mold placement tube, a corresponding limiting hole edge plate is fixedly connected to the inner wall of the first diverter filter plate, a plurality of circulating diverter filter holes are formed between the second diverter filter plate and the first diverter filter plate, and the injection molding liquid in the small frame of the sealed processing box flows to the inside of the processing mold placement tube through the plurality of diverter filter holes and the circulation holes.

[0012] Optionally, a plurality of limiting telescopic blocks for limiting the telescopic degree of the airbag limiting edge are fixedly connected inside the airbag limiting edge.

[0013] Optionally, a guide rotating ball is rotatably connected to the outer side of the sealing push ring, and the guide rotating ball is arranged in a rotating state on the inner wall of the circulation groove through the sliding of the sealing push ring in the circulation groove.

[0014] Optionally, the support assembly further comprises two clamping blocks, a hollow processing seat is fixedly connected between the two clamping blocks, and limiting triangle plates for limiting the sliding position of the injection mold assembly are fixedly connected on both sides of the hollow processing seat.

[0015] Optionally, a limited position circular frame is fixedly connected to the outer side of the sealed processing box, and an airflow conveying frame is fixedly connected to the outer side of a large frame of the sealed processing box.

[0016] Optionally, the injection mold assembly also includes a built-in limit frame fixedly installed on the outside of the processing mold placement tube, the outside of the built-in limit frame is fixedly connected to an external snap-fit ​​gear ring, the external snap-fit ​​gear ring is located on one side of the inner wall of the hollow processing seat and is fixedly connected to a threaded ring, the threaded ring is arranged in a threaded connection state with the built-in threaded block, and the bottom of the external snap-fit ​​gear ring is attached to the airflow conveying frame through a first rubber block.

[0017] Optionally, a plurality of auxiliary grooves are provided between the built-in limiting frame and the threaded ring, and an impurity collection box is fixedly connected to the top of the processing table.

[0018] Optionally, the injection mold linkage assembly includes a corresponding fixed plate, which is fixedly connected to the top of the processing table, one side of the corresponding fixed plate is rotatably connected to an auxiliary rotating rod, and the side of the auxiliary rotating rod away from the corresponding fixed plate is slidably connected to a transverse sliding cavity block.

[0019] Optionally, an auxiliary fixing block is fixedly connected to the top of the transverse sliding cavity block, a threaded push rod is rotatably connected inside the auxiliary fixing block, and a first gear is fixedly connected to a side of the threaded push rod away from the auxiliary fixing block.

[0020] Optionally, two sides of the auxiliary fixing block are fixedly connected with a two-way clamping block, and two second gears are fixedly connected with two sides of the two-way clamping block. The two second gears pass through one side of the two-way clamping block and are rotatably connected to the processing table through corresponding rotating rods. The two second gears are arranged in a meshing state with the first gear.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. After the airbag limiting edge is inflated, it expands in the diverter filter hole to the same size as the filter pores of the corresponding limiting hole side plate, and the filter pores of the corresponding limiting hole side plate are of a normal size to hinder the flow of impurities. To avoid the flow of impurities, the elasticity of the airbag limiting edge is used to buffer the inflow of the injection molding liquid within a controllable range to avoid damage to the filter screen. As the single injection molding liquid flows into the mold of the processing mold placement tube, the first diverter filter plate and the second diverter filter plate are separated, and the filter pores on one side of the second diverter filter plate become larger, and impurities can flow normally from here. The impurities are pushed from the second diverter filter plate to flow between the first diverter filter plate and the second diverter filter plate, and then the impurities are completely removed, thereby avoiding the adverse effects of impurity residues on the next flow of catheter materials.

[0023] 2. According to the rotation state of the auxiliary rotating rod, the contact state between the threaded push rod and the external snap-fit ​​gear ring is controlled. During the cooling and shaping process of the injection liquid, the bubbles that may be generated in the liquid are squeezed and broken by the rotation due to the rolling state, which is convenient for collecting impurities. When the injection liquid is heated and transmitted, it is in a sealed state, thereby speeding up the production efficiency of the catheter and improving the quality of the catheter. Different strategies can be adopted according to different processing steps of the catheter;

[0024] 3. As the injection mold assembly and the conveying assembly separate, the threaded conveying rod pushes the impurities into the built-in limit frame until an auxiliary groove faces downward. The impurities then fall from the auxiliary groove into the impurity collection box by gravity, making it easier to collect the impurities and avoiding affecting the processing of the next catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a discharge device of an injection molding machine for producing urinary catheters according to the present invention is provided;

[0026] Figure 2 A structural schematic diagram of the processing mold of the present invention is given;

[0027] Figure 3 A structural schematic diagram of the hollow processing seat of the present invention is given;

[0028] Figure 4 The present invention is given Figure 3 Enlarged view of the middle A area;

[0029] Figure 5 A structural schematic diagram of the threaded push rod of the present invention is given;

[0030] Figure 6 A structural schematic diagram of the threaded conveying rod of the present invention is given;

[0031] Figure 7 The present invention is given Figure 6 Enlarged view of the middle B area;

[0032] Figure 8 The present invention is given Figure 6 Enlarged view of the middle C area;

[0033] Fig. 9 A structural schematic diagram of the sealing push ring of the present invention is given;

[0034] Fig.10 A schematic structural diagram of the split-flow filter hole of the present invention is given.

[0035] Figure numerals: 1. Support assembly; 101. Processing table; 102. Clamping block; 103. Hollow processing seat; 104. Built-in threaded block; 105. Limiting triangle plate; 106. Impurity collection box; 2. Conveying assembly; 201. Sealed processing box; 202. Limiting circular frame; 203. Threaded conveying rod; 204. Airflow conveying frame; 3. Injection mold assembly; 301. Limiting slide plate; 302. Positioning slideway; 303. Processing mold placement tube; 304. External snap-fit ​​gear ring; 305. Built-in limiting frame; 306. Threaded ring; 307. Auxiliary groove; 308. First rubber block; 4. Injection mold linkage Assembly; 401, threaded push rod; 402, corresponding fixed plate; 403, two-way clamping block; 404, corresponding rotating rod; 405, first gear; 406, second gear; 407, auxiliary rotating rod; 408, auxiliary fixed block; 409, horizontal sliding cavity block; 5, double-layer interlocking filter mesh assembly; 501, flow hole; 502, diversion filter hole; 503, first diversion filter hole plate; 504, second diversion filter hole plate; 505, corresponding limiting hole side plate; 506, flow air groove; 507, limiting telescopic block; 508, airbag limiting edge; 509, sealing push ring; 510, guide rotating ball. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] like Figure 1 - Figure 3 As shown, the present invention provides a discharge device for an injection molding machine for producing urinary catheters, comprising a support assembly 1, a conveying assembly 2 and an injection mold assembly 3 installed on the support assembly 1, and an injection mold linkage assembly 4 that is linked to the injection mold assembly 3 is installed on the top of the support assembly 1;

[0038] A double-layer inter-detachable filter screen assembly 5 for adjusting the size of the filter pores is installed inside the injection mold assembly 3 and the conveying assembly 2;

[0039] The support assembly 1 includes a processing table 101, and the conveying assembly 2 includes a sealed processing box 201 fixedly installed on the top of the processing table 101. The sealed processing box 201 also includes a large frame and a small frame. The small frame of the sealed processing box 201 is rotatably connected to a threaded conveying rod 203;

[0040] The support assembly 1 further includes two clamping blocks 102, a hollow processing seat 103 is fixedly connected between the two clamping blocks 102, and two sides of the hollow processing seat 103 are fixedly connected with limiting triangle plates 105 for limiting the sliding position of the injection mold assembly 3, and the injection mold assembly 3 slides along the limiting triangle plates 105;

[0041] like Figure 1 - Figure 6 As shown, the temperature in the injection molding process does not meet the requirements, which may lead to uneven plastic filling, forming bubbles or weld lines, and finally forming sand holes on the surface of the molded product. The outer side of the sealed processing box 201 is fixedly connected to the limited position circular frame 202, and the outer side of the large frame of the sealed processing box 201 is fixedly connected to the air flow conveying frame 204. When the injection mold assembly 3 and the conveying assembly 2 are separated, the external snap-fit ​​gear ring 304 and the first rubber block 308 no longer seal the air flow conveying frame 204, causing the external air flow to pass from the air flow conveying frame 204 to the processing mold placement tube 303, which is convenient for the heat dissipation of the catheter in the processing mold placement tube 303;

[0042] like Figure 1 - Figure 7 As shown, the injection mold assembly 3 also includes an internal limit frame 305 fixedly installed on the outside of the processing mold placement tube 303, and an external snap-fit ​​gear ring 304 is fixedly connected to the outside of the internal limit frame 305. The external snap-fit ​​gear ring 304 is located on one side of the inner wall of the hollow processing seat 103 and is fixedly connected to a threaded ring 306. The threaded ring 306 is arranged in a threaded connection state with the internal thread block 104. The bottom of the external snap-fit ​​gear ring 304 is attached to the airflow conveying frame 204 through a first rubber block 308. When the external snap-fit ​​gear ring 304 rotates, the external snap-fit ​​gear ring 304 The combined gear ring 304 slides along the built-in threaded block 104 through the threaded guide tube between the threaded ring 306 and the built-in threaded block 104. A plurality of auxiliary grooves 307 are provided between the built-in limit frame 305 and the threaded ring 306. An impurity collection box 106 is fixedly connected to the top of the processing table 101. As the injection mold assembly 3 and the conveying assembly 2 are separated, the threaded conveying rod 203 pushes impurities into the built-in limit frame 305 until an auxiliary groove 307 faces downward, and the impurities then fall from the auxiliary groove 307 into the impurity collection box 106 by gravity.

[0043] In this embodiment, Figure 5 - Fig. 9As shown, the injection mold linkage assembly 4 includes a corresponding fixed plate 402, which is fixedly connected to the top of the processing table 101, and one side of the corresponding fixed plate 402 is rotatably connected to an auxiliary rotating rod 407, and the connection between the auxiliary rotating rod 407 and the corresponding fixed plate 402 is fixedly connected to a first forward and reverse motor, and the auxiliary rotating rod 407 is slidably connected to a transverse sliding cavity block 409 on the side away from the corresponding fixed plate 402, and the first forward and reverse motor drives the auxiliary rotating rod 407 to rotate through the main shaft, and the auxiliary rotating rod 407 drives the transverse sliding cavity block 409 to move up and down through the thrust provided by the contact between the auxiliary rotating rod 407 and the inner wall of the transverse sliding cavity block 409 during rotation, and the top of the transverse sliding cavity block 409 is fixedly connected to an auxiliary fixed block 408, and the auxiliary fixed block 408 A threaded push rod 401 is rotatably connected inside, and a first gear 405 is fixedly connected to one side of the threaded push rod 401 away from the auxiliary fixing block 408. The threaded push rod 401 is meshed with the external snap-fit ​​gear ring 304. Two sides of the auxiliary fixing block 408 are fixedly connected with two-way clamping blocks 403. Two second gears 406 are fixedly connected to both sides of the two-way clamping block 403. The two second gears 406 pass through one side of the two-way clamping block 403 and are rotatably connected to the processing table 101 through corresponding rotating rods 404. The two second gears 406 are meshed with the first gear 405. During the processing of some molded parts, due to bubbles appearing during the transportation of the injection molding liquid, sand eye defects are easily caused when the molded parts are molded into catheters.

[0044] When the auxiliary rotating rod 407 lifts the auxiliary fixing block 408 through the horizontal sliding cavity block 409, and one of the second gears 406 is fixedly connected to the second forward and reverse motor, and the second forward and reverse motor drives the second gear 406 to rotate, under the clamping positioning of the two second gears 406, the second gear 406 drives the first gear 405 to rotate, and the first gear 405 drives the threaded push rod 401 to rotate, and the threaded push rod 401 is engaged with the external snap-fit ​​gear ring 304 to drive the external snap-fit ​​gear ring 304 to rotate, and the external snap-fit ​​gear ring 304 drives the threaded ring 306 to rotate clockwise along the built-in threaded block 104, and the built-in limit frame 305 drives the processing mold placement tube 303 to separate from the sealed processing box 201, which is convenient for collecting impurities, and at the same time, the processing mold placement tube 303 rotates along the limiting slide plate 301, which can cause the processing mold The injection liquid in the placement tube 303 is in a rolling state. During the cooling and shaping process of the injection liquid, due to the rolling state, the bubbles that may be generated in the liquid are rotated and squeezed, thereby reducing the occurrence of sand holes and accelerating the heat dissipation progress. If the external snap-fit ​​gear ring 304 rotates in the opposite direction through the threaded push rod 401, the processing mold placement tube 303 and the sealed processing box 201 are in a sealed state again, which is convenient for the circulation and heating of the injection liquid. As the auxiliary rotating rod 407 rotates in the opposite direction, the transverse sliding cavity block 409 drives the two-way clamping block 403 to deflect downward along the two second gears 406. At this time, the threaded push rod 401 does not contact the external snap-fit ​​gear ring 304, thereby avoiding affecting the removal of the catheter in the processing mold placement tube 303, thereby accelerating the production efficiency of the catheter and improving the quality of the catheter. Different strategies can be adopted according to different processing steps of the catheter.

[0045] like Figure 5 - Fig.10As shown, the double-layer inter-detachable filter screen assembly 5 includes a second diverter filter plate 504 fixedly connected to the inner wall of the small frame of the sealed processing box 201, and a flow air groove 506 is opened inside the second diverter filter plate 504. The bottom of the second diverter filter plate 504 is fixedly connected with an air bag limiting edge 508, and the flow air groove 506 and the air bag limiting edge 508 are arranged in a connected state. The flow air groove 506 is plugged into the inside of the first diverter filter plate 503, and the first diverter filter plate 503 is fixedly connected with a sealing push ring 509 on the side facing the flow air groove 506. The first diverter filter plate 503 is fixedly installed on one side of the processing mold placement tube 303, and the inner wall of the first diverter filter plate 503 is fixedly connected with a corresponding The limiting hole side plate 505, a plurality of diverter filter holes 502 for circulation are formed between the second diverter filter hole plate 504 and the first diverter filter hole plate 503. The number of diverter filter holes 502 in the figure is only for ease of understanding, and the actual number is much larger than this. The injection molding liquid in the small frame of the sealed processing box 201 flows to the inside of the processing mold placement tube 303 through the plurality of diverter filter holes 502 and the flow holes 501. The flow holes 501 facilitate the rapid circulation of the injection molding liquid. When the processing mold placement tube 303 and the small frame of the sealed processing box 201 are in a sealed state, since there is air between the small frame and the large frame of the sealed processing box 201, the injection molding liquid is in a stable high temperature state, which is convenient for transportation. The threaded conveying rod 203 pushes the injection molding liquid from the small frame into the processing mold When the device is placed in the tube 303, since the second flow-dividing filter hole plate 504 is plugged into the first flow-dividing filter hole plate 503, the filter pores on the first flow-dividing filter hole plate 503 and the second flow-dividing filter hole plate 504 are aligned, forming a plurality of interconnected flow-dividing filter holes 502, and the first flow-dividing filter hole plate 503 drives the sealing push ring 509 to slide along the inner wall of the flow air groove 506, so that the internal air flow of the flow air groove 506 is squeezed together, so that the flow air groove 506 conducts the air flow to the airbag limiting edge 508, and the airbag limiting edge 508 here can be compared to a lifebuoy mechanism, which expands in the flow-dividing filter hole 502 to the same size as the filter pores of the corresponding limiting hole edge plate 505 after inflation, and the corresponding The filter pores of the limiting hole side plate 505 are of normal size to hinder the flow of impurities. When the threaded conveying rod 203 is transmitting the injection molding liquid, the impurities are always limited by the airbag limiting edge 508 and the corresponding limiting hole side plate 505 to prevent the flow of impurities. At the same time, the elasticity of the airbag limiting edge 508 is used to buffer the inflow of the injection molding liquid within a controllable range to avoid damage to the filter screen. As the single injection molding liquid flows into the mold of the processing mold placement tube 303, the injection molding liquid injection mold assembly 3 is away from the conveying assembly 2, and the first shunt filter hole plate 503 is separated from the second shunt filter hole plate 504. Then, the filter pores on one side of the second shunt filter hole plate 504 become larger, and impurities can flow normally from here. As the threaded conveying rod 203 continues to rotate,The impurities are pushed from the second flow-dividing filter plate 504 to flow between the first flow-dividing filter plate 503 and the second flow-dividing filter plate 504, thereby completely removing the impurities, thereby preventing the impurities from remaining and causing adverse effects on the next flow of the catheter material.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0047] "Comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0048] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A discharge device of an injection molding machine for producing urinary catheters, comprising a support assembly (1), a conveying assembly (2) mounted on the support assembly (1), and an injection mold assembly (3), characterized in that: An injection mold linkage component (4) that is linked to the injection mold component (3) is installed on the top of the support component (1); A double-layer interlocking filter screen component (5) for adjusting the size of filter pores is installed inside the injection mold component (3) and the conveying component (2); The support assembly (1) comprises a processing table (101), the conveying assembly (2) comprises a sealed processing box (201) fixedly mounted on the top of the processing table (101), the sealed processing box (201) further comprising a large frame and a small frame, the small frame of the sealed processing box (201) being rotatably connected to a threaded conveying rod (203); The injection mold assembly (3) comprises a limiting slide plate (301), the bottom of the limiting slide plate (301) is slidably connected to a positioning slideway (302) fixedly connected to the processing table (101), and one side of the limiting slide plate (301) is rotatably connected to a processing mold placement tube (303); The double-layer inter-detachable filter screen assembly (5) comprises a second flow-dividing filter plate (504) fixedly connected to the inner wall of the small frame of the sealing processing box (201); a flow-through air groove (506) is provided inside the second flow-dividing filter plate (504); an air bag limiting edge (508) is fixedly connected to the bottom of the second flow-dividing filter plate (504); the flow-through air groove (506) and the air bag limiting edge (508) are arranged in a communicating state; a first flow-dividing filter plate (503) is inserted into the flow-through air groove (506); the first flow-dividing filter plate (503) faces the flow-through air groove (506); 6) is fixedly connected to one side of the processing mold placement tube (303), the first diverter filter plate (503) is fixedly installed on one side of the processing mold placement tube (303), a corresponding limiting hole side plate (505) is fixedly connected to the inner wall of the first diverter filter plate (503), a plurality of diverter filter holes (502) for circulation are formed between the second diverter filter plate (504) and the first diverter filter plate (503), and the injection molding liquid in the small frame of the sealed processing box (201) flows to the interior of the processing mold placement tube (303) through the plurality of diverter filter holes (502) and the circulation holes (501).

2. The discharge device of an injection molding machine for producing urinary catheters according to claim 1, characterized in that: A plurality of limiting telescopic blocks (507) for limiting the telescopic degree of the airbag limiting edge (508) are fixedly connected inside the airbag limiting edge (508).

3. The discharge device of an injection molding machine for producing a urinary catheter according to claim 2, characterized in that: The outer side of the sealing push ring (509) is rotatably connected to a guide rotating ball (510), and the guide rotating ball (510) is arranged in a rotating state on the inner wall of the circulation groove (506) through the sliding of the sealing push ring (509) in the circulation groove (506).

4. The discharge device of an injection molding machine for producing a urinary catheter according to claim 1, characterized in that: The support assembly (1) further comprises two clamping blocks (102), a hollow processing seat (103) being fixedly connected between the two clamping blocks (102), and limiting triangle plates (105) for limiting the sliding position of the injection mold assembly (3) being fixedly connected on both sides of the hollow processing seat (103).

5. The discharge device of an injection molding machine for producing urinary catheters according to claim 4, characterized in that: The outer side of the sealing processing box (201) is fixedly connected to a limited position circular frame (202), and the outer side of the large frame of the sealing processing box (201) is fixedly connected to an air flow conveying frame (204).

6. The discharge device of an injection molding machine for producing urinary catheters according to claim 5, characterized in that: The injection mold assembly (3) further comprises an internal limit frame (305) fixedly mounted on the outside of the processing mold placement tube (303); an external snap-fit ​​gear ring (304) is fixedly connected to the outside of the internal limit frame (305); a threaded ring (306) is fixedly connected to one side of the internal wall of the hollow processing seat (103); the threaded ring (306) is threadedly connected to the internal threaded block (104); and the bottom of the external snap-fit ​​gear ring (304) is attached to the airflow conveying frame (204) via a first rubber block (308).

7. The discharge device of an injection molding machine for producing urinary catheters according to claim 6, characterized in that: A plurality of auxiliary grooves (307) are provided between the built-in limiting frame (305) and the threaded ring (306), and an impurity collection box (106) is fixedly connected to the top of the processing table (101).

8. The discharge device of an injection molding machine for producing urinary catheters according to claim 7, characterized in that: The injection mold linkage assembly (4) comprises a corresponding fixed plate (402), wherein the corresponding fixed plate (402) is fixedly connected to the top of the processing table (101), one side of the corresponding fixed plate (402) is rotatably connected to an auxiliary rotating rod (407), and the side of the auxiliary rotating rod (407) away from the corresponding fixed plate (402) is slidably connected to a transverse sliding cavity block (409).

9. The discharge device of an injection molding machine for producing urinary catheters according to claim 8, characterized in that: The top of the transverse sliding cavity block (409) is fixedly connected to an auxiliary fixing block (408), the interior of the auxiliary fixing block (408) is rotatably connected to a threaded push rod (401), a side of the threaded push rod (401) away from the auxiliary fixing block (408) is fixedly connected to a first gear (405), and the threaded push rod (401) is arranged in a meshing state with an external snap-fit ​​gear ring (304).

10. The discharge device of an injection molding machine for producing urinary catheters according to claim 9, characterized in that: The two sides of the auxiliary fixing block (408) are fixedly connected to a bidirectional clamping block (403), and the two sides of the bidirectional clamping block (403) are fixedly connected to two second gears (406). The two second gears (406) pass through one side of the bidirectional clamping block (403) and are rotatably connected to the processing table (101) through corresponding rotating rods (404). The two second gears (406) are arranged in a meshing state with the first gear (405).

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