A nozzle blockage detection device for injection molding machines used in the production of plastic pipe fittings

Abstract

The present invention discloses an injection molding machine nozzle blockage detection device for the production of plastic pipe fittings, which relates to the technical field of injection molding machines. It comprises a base, a coupling is provided on the surface of the base, a bottom plate is fixedly connected to the surface of the coupling, an anti-slip cap is provided on the inner side of the bottom plate, and an annular rail is provided on the outer side of the bottom plate. Through the provided coupling accessory structure, the linkage bottom plate and the anti-slip cap accessory structure can be inserted into and rotated into the inside of the injection molding machine nozzle after the nozzle is blocked, providing a wider range of scraping and cleaning, ensuring that the solidified material is effectively removed, and improving the cleaning efficiency. Through the provided annular rail accessory structure, it can accelerate the discharge of the treated blockage during use, avoiding secondary blockage to affect the efficiency of the clearing operation, or clean the surface of the scraper when the clearing operation is not performed, ensuring that the scraper surface always maintains the best state, and further reducing the maintenance frequency.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, and in particular to a nozzle blockage detection device for injection molding machines used in the production of plastic pipe fittings. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity. However, the existing injection molding machine nozzle has the problem of clogging during use. In order not to affect the normal production, corresponding detection devices are often used.

[0003] The invention patent with announcement number CN111941727B discloses an injection molding machine nozzle blockage detection device for the production of plastic pipe fittings. It facilitates the transportation of raw materials in the mixing box by rotating the motor, feeding tube, spring telescopic rod, threaded circular plate, threaded sleeve, pushing circular plate, feeding tube and nozzle. The mixing box, support legs, feeding tube, fixed plate, dual-axis motor and stirring rod body are conducive to the stirring of raw materials. The monitoring box, socket, spring, load plate, plug, return trough and return pipe realize the reflux of raw materials after the nozzle is blocked, which is convenient for subsequent cleaning of the nozzle with a needle. The electric telescopic rod, air pump, trash can, electric displacement telescopic rod, pin and exhaust trough realize the cleaning of the blocked nozzle. The placement plate and gravity telescopic table facilitate the judgment of whether the nozzle is blocked by the change of mold gravity for subsequent corresponding processing.

[0004] The above-mentioned prior art has certain shortcomings in actual use. Although it can clear the blocked injection molding machine nozzle to a certain extent, on the one hand, during the clearing, the fallen material cannot be discharged in time and may cause secondary blockage, thereby affecting the clearing efficiency. On the other hand, the drill bit itself will also be adhered with material, and manual cleaning is required before the next clearing operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a nozzle blockage detection device for an injection molding machine used in the production of plastic pipe fittings to solve the above technical problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A nozzle blockage detection device for an injection molding machine used in the production of plastic pipe fittings, comprising a base, a coupling provided on the surface of the base, a bottom plate fixedly connected to the surface of the coupling, an anti-drop cap provided on the inner side of the bottom plate, and an annular rail provided on the outer side of the bottom plate;

[0008] The surface of the annular rail is symmetrically fixedly connected with a docking sleeve, the surface of the docking sleeve is sleeved and connected with an assembly sleeve, the inner side of the assembly sleeve is provided with a guide groove, the outer side of the assembly sleeve is fixedly connected with a scraper, the interior of the annular rail is embedded with an inner ring, one annular surface of the inner ring is symmetrically fixedly connected with a convex node, and the convex node and the guide groove are embedded and connected.

[0009] As a further solution of the present invention: a mixing barrel is fixedly installed on the upper end of the base near a short side, an agitator is fixedly installed on the top surface of the mixing barrel, a heater is fixedly installed on the side surface of the mixing barrel, a pusher is fixedly installed on the lower end of the mixing barrel, the output end of the pusher is fixedly connected to a nozzle, a heat preservation rack is fixedly installed on the surface of the pusher, a heat conduction pipe is fixedly connected to the surface of the heat preservation rack, a bracket is fixedly installed on the upper end of the base near the other short side, a piece counter is fixedly installed inside the bracket, a mold rack is provided inside the bracket above the piece counter, a first cylinder is fixedly connected to the surface of one end of the bracket, a second cylinder is provided at the output end of the first cylinder, and the output end of the second cylinder is fixedly connected to the connecting shaft.

[0010] As a further solution of the present invention: a first motor is fixedly installed on the inside of the connecting shaft near one end edge, the output end of the first motor is fixedly connected to a docking rod, the surface of the docking rod is fixedly connected to a ring plate, one end surface of the ring plate is fixedly connected to a first latching tooth, one end surface of the connecting shaft is fixedly connected to an inner sleeve, the side surface of the inner sleeve is symmetrically fixedly connected to a linkage gear set, one end surface of the inner sleeve is fixedly connected to an anti-slip ring, the ring plate is sleeved with the anti-slip ring, the side surface of the inner sleeve is sleeved with an outer sleeve, the inner surface of the outer sleeve is fixedly connected to an inner gear ring near one end edge, the inner gear ring is meshed with the linkage gear set, the first latching tooth is meshed with the linkage gear set, one end surface of the outer sleeve is fixedly connected to a fixing ring, and the fixing ring is fixedly connected to the base plate.

[0011] The top end face of said sliding panel also is provided with an interlock plate, and the interlock plate is fixed with a toothed connection part, and the interlock plate is hinged on the base plate, is fixed with a toothed connection part, and the interlock plate is hinged on the base plate, is fixed with a toothed connection part.

[0012] As a further solution of the present invention: the surface of the anti-drop cap is fixedly connected with an embedding rod, and the embedding rod is embedded in the arc groove, one end surface of the embedding rod is fixedly connected with a embedding strip, the side surface of the embedding strip is fixedly connected with a sleeve at one end edge, one end of the sleeve is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a connecting piece, one end surface of the connecting piece is fixedly connected with a pin at one end edge, the surface of the sleeve is rotatably connected with a connecting block, the surface of the connecting block is fixedly connected with a long shaft, the surface of the long shaft is provided with an alignment groove, the pin is embedded in the alignment groove, and one end surface of the long shaft is fixedly connected with a scraper.

[0013] As a further solution of the present invention: the outer surface of the annular rail is symmetrically provided with horizontal grooves, one end surface of the annular rail is provided with longitudinal grooves, the other end surface of the annular rail is fixedly connected to a support plate, one end surface of the support plate is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to a second gear.

[0014] As a further solution of the present invention: the side surface of the inner ring is provided with a notch, the second gear is embedded and connected to the notch, the inner surface of the annular rail is fixedly connected to a folding rod, and the surface of the folding rod is fixedly connected to a screw sleeve.

[0015] Beneficial effects of the present invention:

[0016] Through the setting of the coupling accessory structure, its linkage base plate and anti-drop cap accessory structure can be inserted into the injection molding machine nozzle and rotated into the inside after the nozzle is blocked, providing a wider range of scraping and cleaning, ensuring that the solidified material is effectively removed and improving the cleaning efficiency. Through the setting of the ring rail accessory structure, it can accelerate the discharge of the treated blockage during use to avoid secondary blockage that affects the efficiency of the clearing operation, or clean the surface of the scraper when the clearing operation is not performed to ensure that the scraper surface is always in the best condition, further reducing the maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the blockage clearing device of the present invention;

[0020] Figure 3 This is a schematic diagram of the structural connection of the coupling accessories of the present invention;

[0021] Figure 4 is a first side view of the base plate accessory structure of the present invention;

[0022] Figure 5 This is the second side view of the bottom plate accessory structure of the present invention

[0023] Figure 6 This is a schematic diagram of the connection structure of the anti-drop cap accessory of the present invention

[0024] Figure 7 This is a schematic diagram of the structural connection of the ring rail accessories of the present invention;

[0025] Figure 8 It is a schematic diagram of the disassembly of the ring rail accessory structure of the present invention.

[0026] In the figure: 1. base; 2. mixing barrel; 3. agitator; 4. heater; 5. pusher; 6. nozzle; 7. heat preservation rack; 8. heat pipe; 9. bracket; 10. piece counter; 11. mold rack; 12. first cylinder; 13. second cylinder; 14. connecting shaft; 15. first motor; 16. docking rod; 17. ring plate; 18. first latching gear; 19. inner sleeve; 20. linkage gear set; 21. anti-slip ring; 22. outer sleeve; 23. inner ring gear; 24. fixing ring; 25. bottom plate; 26. support rod; 27. support plate; 28. second motor; 29. ​​first gear; 30. top plate; 31. connecting plate; 32. second latching gear; 33. Arc groove; 34. Third motor; 35. Guide screw; 36. Slide rod; 37. Blocking plate; 38. Docking frame; 39. Limiting groove; 40. Through groove; 41. Anti-drop cap; 42. Embedded rod; 43. Embedded strip; 44. Sleeve; 45. First motor; 46. Connecting piece; 47. Connecting block; 48. Long shaft; 49. Alignment groove; 50. Scraper; 51. Annular rail; 52. Docking sleeve; 53. Horizontal slot; 54. Vertical slot; 55. Assembly sleeve; 56. Guide groove; 57. Scraper; 58. Second motor; 59. Second gear; 60. Inner ring; 61. Missing slot; 62. Protruding section; 63. Folding rod; 64. Screw sleeve. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] See also Figures 1-8 As shown, the present invention is a nozzle blockage detection device for an injection molding machine used in the production of plastic pipe fittings, comprising a base 1, a coupling 14 being provided on the surface of the base 1, a bottom plate 25 being fixedly connected to the surface of the coupling 14, an anti-drop cap 41 being provided on the inner side of the bottom plate 25, and an annular rail 51 being provided on the outer side of the bottom plate 25;

[0029] A butt joint 52 is symmetrically fixedly connected to the surface of the annular rail 51. An assembly sleeve 55 is sleeved and connected to the surface of the butt joint 52. A guide groove 56 is provided on the inner side of the assembly sleeve 55. A scraper 57 is fixedly connected to the outer side of the assembly sleeve 55. An inner ring 60 is embedded in the interior of the annular rail 51. A convex section 62 is symmetrically fixedly connected to one annular surface of the inner ring 60. The convex section 62 is embedded and connected to the guide groove 56.

[0030] A mixing barrel 2 is fixedly mounted on the upper end of the base 1 at a short side, a stirrer 3 is fixedly mounted on the top surface of the mixing barrel 2, a heater 4 is fixedly mounted on the side surface of the mixing barrel 2, a pusher 5 is fixedly mounted on the lower end of the mixing barrel 2, a nozzle 6 is fixedly connected to the output end of the pusher 5, a heat preservation rack 7 is fixedly mounted on the surface of the pusher 5, a heat conduction pipe 8 is fixedly connected to the surface of the heat preservation rack 7, a bracket 9 is fixedly mounted on the upper end of the base 1 at another short side, a piece counter 10 is fixedly mounted inside the bracket 9, a mold rack 11 is provided inside the bracket 9 above the piece counter 10, one end surface of the bracket 9 is fixedly connected to a first cylinder 12, the output of the first cylinder 12 A second cylinder 13 is provided at the end, and the output end of the second cylinder 13 is fixedly connected to the connecting shaft 14. In normal use, after the injection molding material is injected into the mixing barrel 2, the user can use the stirrer 3 and the heater 4 to melt it, and then inject it into the pusher 5 before cooling and solidifying, and finally eject it through the nozzle 6, and then inject it into the surface of the mold frame 11 to wait for cooling and forming. The heat preservation frame 7 will further maintain the temperature inside the pusher 5 during this process to avoid the injection molding material from solidifying as much as possible. However, there will still be certain situations that cause the injection molding material to solidify and block the nozzle 6. After the piece counter 10 detects that the processing efficiency has slowed down, the blockage will be cleared by computer control;

[0031] A first motor 15 is fixedly installed on the inner edge of the coupling 14, and a docking rod 16 is fixedly connected to the output end of the first motor 15. A ring plate 17 is fixedly connected to the surface of the docking rod 16, and one end surface of the ring plate 17 is fixedly connected to a first latching tooth 18. An inner sleeve 19 is fixedly connected to one end surface of the coupling 14, and a linkage gear set 20 is symmetrically fixedly connected to the side surface of the inner sleeve 19. An anti-slip ring 21 is fixedly connected to one end surface of the inner sleeve 19, and the ring plate 17 is sleeved with the anti-slip ring 21. The side surface of the inner sleeve 19 is sleeved with an outer sleeve 22. The inner surface of the outer sleeve 22 is fixedly connected to an inner gear ring 23 at one end edge. The inner gear ring 23 is meshed with the linkage gear set 20. The first latching tooth 18 is meshed with the linkage gear set 20, and one end surface of the outer sleeve 22 is fixedly connected with a fixing ring 24, which is fixedly connected to the bottom plate 25. Through the operation of the first cylinder 12 and the second cylinder 13, the connecting shaft 14 and a series of accessories will begin to slowly extend into the blocked nozzle 6, and then the blockage clearing operation will begin. In this process, by starting the first motor 15, the ring plate 17 on its output end is used to drive the first latch 18 to rotate, and then through the relay drive of the linkage gear set 20, the inner ring gear 23 meshed with it will start to drive the outer sleeve 22 to rotate, and finally the entire blockage clearing structure is rotated through the fixing ring 24, and the blockage clearing efficiency is mainly improved by the rotation of the scraper 50;

[0032] A support rod 26 is fixedly mounted on one end surface of the bottom plate 25. A support plate 27 is fixedly connected to one end surface of the bottom plate 25 on the inner side of the support rod 26. A second motor 28 is fixedly mounted on one end surface of the support plate 27. A first gear 29 is fixedly connected to the output end of the second motor 28. A top plate 30 is fixedly connected to one end surface of the support rod 26. An anti-slip ring is provided on one end surface of the top plate 30. A connecting plate 31 is rotatably connected to the surface of the anti-slip ring. A second latch 32 is fixedly connected to one end surface of the connecting plate 31 close to the side edge. An arc-shaped groove 33 is provided near the middle of the surface of the connecting plate 31. A third motor 34 is fixedly mounted at the middle of one end surface of the top plate 30. A guide screw 35 is fixedly connected to the output end of the third motor 34. A sliding rod 36 is fixedly mounted near the middle of the other end surface of the top plate 30. A blocking plate 37 is sleeved and connected to the surfaces of the guide screw 35 and the sliding rod 36. A docking frame 38 is fixedly connected to the other end surface of the top plate 30. A limiting groove 39 is provided on the surface of the docking frame 38. A through groove 40 is provided on the surface of the limiting groove 39.

[0033] The surface of the anti-slip cap 41 is fixedly connected with an embedded rod 42, and the embedded rod 42 is embedded and connected with the arc groove 33. One end surface of the embedded rod 42 is fixedly connected with a molding 43, and the side surface of the molding 43 is fixedly connected with a sleeve 44 at one end edge. One end of the sleeve 44 is fixedly connected to a first motor 45, and the output end of the first motor 45 is fixedly connected with a connecting piece 46, and one end surface of the connecting piece 46 is fixedly connected with a pin at one end edge. The surface of the sleeve 44 is rotatably connected with a connecting block 47, and the surface of the connecting block 47 is fixedly connected with a long shaft 48. The surface of the long shaft 48 is provided with an alignment groove 49, and the pin is embedded and connected with the alignment groove 49. One end surface of the long shaft 48 is fixedly connected with a scraper 50. The five groups of scrapers 50 are initially gathered together in the middle position, and their tips will be close to each other to form a drill bit shape, so as to facilitate drilling into the blockage first. The material is poured into the nozzle 6, and when the depth is appropriate, the second motor 28 can be started, and the first gear 29 on the output end drives the second latch 32 to rotate, and then the entire connecting plate 31 will start to rotate slowly, and cooperate with the arc groove 33 to make the embedded rod 42 push outward in a straight line under the interference of the embedded strip 43 and the limit groove 39, so as to expand the clearing range of the scraper 50 as much as possible. In view of the conical structure of the nozzle 6, when the embedded rod 42 moves the maximum distance, or interferes with the surface of the nozzle 6, the first motor 45 can be controlled to start, so that it drives the connecting piece 46 to flip, thereby changing the position of the pin, and the long shaft 48 connected to the pin through the alignment groove 49 will also be dragged and moved, thereby driving the scraper 50 to flip outward slowly, so as to get as close as possible to the inner wall of the nozzle 6, thereby achieving the best cleaning effect.

[0034] The outer surface of the annular rail 51 is symmetrically provided with transverse grooves 53. One end surface of the annular rail 51 is provided with a longitudinal groove 54. The other end surface of the annular rail 51 is fixedly connected to a support plate. One end surface of the support plate is fixedly connected to a second motor 58. The output end of the second motor 58 is fixedly connected to a second gear 59.

[0035] The side surface of the inner ring 60 is provided with a notch 61, and the second gear 59 is embedded and connected to the notch 61. The inner surface of the annular rail 51 is fixedly connected to a folding rod 63, and the surface of the folding rod 63 is fixedly connected to a screw sleeve 64. Whether in the blockage clearing operation or routine maintenance, the third motor 34 can be started to rotate the guide screw 35, and cooperate with the slide rod 36 to make the screw sleeve 64 move steadily, thereby driving the entire annular rail 51 to move and make it stop at the desired position, and then control the second motor 58 to operate. Under the linkage action of the second gear 59 and the notch 61, the body of the inner ring 60 will start to rotate, and the convex section 62 on its surface will rotate together. In this process, whenever it passes through the docking sleeve 52, it will cooperate with the guide groove 56 to drive the corresponding assembly sleeve 55 to rotate, and then the scraper 57 will also rotate accordingly to remove the blocked material and the material attached to the surface of the scraper frame 50.

[0036] The working principle of the present invention is as follows: in normal use, after the injection molding material is injected into the mixing barrel 2, the user can use the stirrer 3 and the heater 4 to melt it, and then inject it into the pusher 5 before cooling and solidifying, and finally eject it through the nozzle 6, and then inject it into the surface of the mold frame 11 to wait for cooling and forming. The heat preservation frame 7 will further maintain the temperature inside the pusher 5 during this process to avoid the injection molding material from solidifying as much as possible. However, there will still be certain situations where the injection molding material solidifies and blocks the nozzle 6. After the piece counter 10 detects that the processing efficiency has slowed down, the blockage operation will be carried out through computer control. Through the operation of the first cylinder 12 and the second cylinder 13, the connecting shaft 14 and a series of matching The component will begin to slowly extend into the blocked nozzle 6, and then start the blockage clearing operation. In this process, by starting the first motor 15, the ring plate 17 on its output end drives the first latch 18 to rotate, and then through the relay drive of the linkage gear set 20, the inner gear ring 23 engaged with it will start to drive the outer sleeve 22 to rotate, and finally the entire blockage clearing structure is rotated through the fixed ring 24, and the blockage clearing efficiency is mainly improved by the rotation of the scraper 50. The five groups of scrapers 50 are initially gathered together in the middle position, and their tips will be close to each other in the shape of a drill bit, so as to facilitate drilling into the blocked material first. When the depth is appropriate, the second motor 28 can be started at this time, and the first The gear 29 drives the second latching tooth 32 to rotate, and then the entire connecting plate 31 will start to rotate slowly, and cooperate with the arc groove 33 to make the embedded rod 42 push outward in a straight line under the interference of the embedded strip 43 and the limit groove 39, so as to expand the clearing range of the scraper 50 as much as possible. In view of the conical structure of the nozzle 6, when the embedded rod 42 moves the maximum distance, or interferes with the surface of the nozzle 6, the first motor 45 can be controlled to start, so that it drives the connecting piece 46 to flip, thereby changing the position of the pin, and the long shaft 48 connected to the pin through the alignment groove 49 will also be dragged and moved, thereby driving the scraper 50 to slowly flip outward to get as close as possible to the inner wall of the nozzle 6, thereby achieving the best cleaning. The effect is that no matter in the clearing operation or routine maintenance process, the third motor 34 can be started to rotate the guide screw 35, and cooperate with the slide rod 36 to make the screw sleeve 64 move steadily, thereby driving the entire annular rail 51 to move and make it stay at the required position, and then control the second motor 58 to operate. Under the linkage action of the second gear 59 and the notch 61, the inner ring 60 body will start to rotate, and the convex section 62 on its surface will rotate together. In this process, whenever it passes through the docking sleeve 52, in conjunction with the guide groove 56, the corresponding assembly sleeve 55 will be driven to rotate, and then the scraper 57 will also rotate to remove the blocked material and the material attached to the surface of the scraper 50.

[0037] The above is a detailed description of an embodiment of the present invention. However, the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A nozzle blockage detection device for an injection molding machine used in the production of plastic pipe fittings, comprising a base (1), characterized in that: The surface of the base (1) is provided with a connecting shaft (14), the surface of the connecting shaft (14) is fixedly connected to a bottom plate (25), the inner side of the bottom plate (25) is provided with an anti-drop cap (41), and the outer side of the bottom plate (25) is provided with an annular rail (51); The surface of the annular rail (51) is symmetrically fixedly connected to a docking sleeve (52), the surface of the docking sleeve (52) is sleeved and connected to an assembly sleeve (55), the inner side of the assembly sleeve (55) is provided with a guide groove (56), the outer side of the assembly sleeve (55) is fixedly connected to a scraper (57), the interior of the annular rail (51) is embedded with an inner ring (60), one annular surface of the inner ring (60) is symmetrically fixedly connected to a convex section (62), and the convex section (62) and the guide groove (56) are embedded and connected; A support rod (26) is fixedly mounted on one end surface of the bottom plate (25), a support plate (27) is fixedly connected to one end surface of the bottom plate (25) on the inner side of the support rod (26), a second motor (28) is fixedly mounted on one end surface of the support plate (27), an output end of the second motor (28) is fixedly connected to a first gear (29), one end surface of the support rod (26) is fixedly connected to a top plate (30), an anti-slip ring is provided on one end surface of the top plate (30), a surface of the anti-slip ring is rotatably connected to a connecting plate (31), one end surface of the connecting plate (31) is fixedly connected to a second latching tooth (32) near the side edge, An arc-shaped groove (33) is provided near the middle of the surface of the connecting plate (31); a third motor (34) is fixedly installed at the middle of one end surface of the top plate (30); a guide screw (35) is fixedly connected to the output end of the third motor (34); a slide rod (36) is fixedly installed near the middle of the other end surface of the top plate (30); a blocking plate (37) is sleeved and connected to the surfaces of the guide screw (35) and the slide rod (36); a docking frame (38) is fixedly connected to the other end surface of the top plate (30); a limiting groove (39) is provided on the surface of the docking frame (38); and a through groove (40) is provided on the surface of the limiting groove (39); The surface of the anti-drop cap (41) is fixedly connected with an embedded rod (42), and the embedded rod (42) is embedded and connected with the arc groove (33). One end surface of the embedded rod (42) is fixedly connected with a fillet (43), and the side surface of the fillet (43) is fixedly connected with a sleeve (44) at one end edge. One end of the sleeve (44) is fixedly connected with a first motor (45), and the output end of the first motor (45) is fixedly connected with a connecting piece (46), and one end surface of the connecting piece (46) is fixedly connected with a pin at one end edge. The surface of the sleeve (44) is rotatably connected with a connecting block (47), and the surface of the connecting block (47) is fixedly connected with a long shaft (48), and the surface of the long shaft (48) is provided with an alignment groove (49), and the pin is embedded and connected with the alignment groove (49). One end surface of the long shaft (48) is fixedly connected with a scraper (50).

2. The device for detecting nozzle blockage of an injection molding machine for producing plastic pipe fittings according to claim 1, characterized in that: A mixing barrel (2) is fixedly mounted on the upper end of the base (1) at a short side edge, a stirrer (3) is fixedly mounted on the top surface of the mixing barrel (2), a heater (4) is fixedly mounted on the side surface of the mixing barrel (2), a pusher (5) is fixedly mounted on the lower end of the mixing barrel (2), a nozzle (6) is fixedly connected to the output end of the pusher (5), a heat preservation rack (7) is fixedly mounted on the surface of the pusher (5), a heat conduction pipe (8) is fixedly connected to the surface of the heat preservation rack (7), a bracket (9) is fixedly mounted on the upper end of the base (1) at the other short side edge, a piece counter (10) is fixedly mounted inside the bracket (9), a mold rack (11) is provided inside the bracket (9) above the piece counter (10), a first cylinder (12) is fixedly connected to the surface of one end of the bracket (9), a second cylinder (13) is provided at the output end of the first cylinder (12), and the output end of the second cylinder (13) is fixedly connected to the connecting shaft (14).

3. The device for detecting nozzle blockage of an injection molding machine for producing plastic pipe fittings according to claim 1, characterized in that: A first motor (15) is fixedly installed at one end edge of the inner portion of the coupling (14); an output end of the first motor (15) is fixedly connected to a docking rod (16); a surface of the docking rod (16) is fixedly connected to a ring plate (17); an end surface of the ring plate (17) is fixedly connected to a first latching tooth (18); an end surface of the coupling (14) is fixedly connected to an inner sleeve (19); a side surface of the inner sleeve (19) is symmetrically fixedly connected to a linkage gear set (20); and an end surface of the inner sleeve (19) is fixedly connected to a An anti-slip ring (21), the ring plate (17) is sleeve-connected to the anti-slip ring (21), the side surface of the inner sleeve (19) is sleeve-connected to an outer sleeve (22), the inner surface of the outer sleeve (22) is fixedly connected to an inner gear ring (23) at one end edge, the inner gear ring (23) is meshed with the linkage gear set (20), the first latching tooth (18) is meshed with the linkage gear set (20), one end surface of the outer sleeve (22) is fixedly connected to a fixing ring (24), and the fixing ring (24) is fixedly connected to the bottom plate (25).

4. The device for detecting nozzle blockage of an injection molding machine for producing plastic pipe fittings according to claim 1, characterized in that: The outer surface of the annular rail (51) is symmetrically provided with transverse grooves (53), one end surface of the annular rail (51) is provided with a longitudinal groove (54), the other end surface of the annular rail (51) is fixedly connected to a support plate, one end surface of the support plate is fixedly connected to a second motor (58), and the output end of the second motor (58) is fixedly connected to a second gear (59).

5. The device for detecting nozzle blockage of an injection molding machine for producing plastic pipe fittings according to claim 4, characterized in that: The side surface of the inner ring (60) is provided with a notch (61), the second gear (59) is embedded in the notch (61), the inner surface of the annular rail (51) is fixedly connected to a folding rod (63), and the surface of the folding rod (63) is fixedly connected to a screw sleeve (64).

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