Injection molding device for plastic nozzles

Abstract

This invention relates to the field of injection molding equipment, specifically to an injection molding device for plastic nozzles. The device includes an injection molding machine housing. A protective cover is fixedly connected to one upper side of the injection molding machine housing. A hole is formed in the side wall of the protective cover, and a collar is fixedly connected to the outer side of the hole. A feed cylinder is mounted on the other upper side of the injection molding machine housing via an installation mechanism. The end of the feed cylinder is connected to the collar via a connecting mechanism. This invention provides a detachable connecting mechanism at the end of the feed cylinder to connect the feed cylinder and the mold. Simultaneously, the feed cylinder is mounted on a carrier plate of the injection molding machine housing via the installation mechanism. During maintenance, the carrier plate of the installation mechanism can be rotated to offset the end of the feed cylinder from the protective cover, expanding the operating space, and the connecting mechanism can be removed from the end of the feed cylinder for easy cleaning.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment, specifically to an injection molding apparatus for plastic nozzles. Background Technology

[0002] When manufacturing plastic printheads, it is necessary to first color the plastic particles, design the corresponding mold, and then perform injection molding. After that, printing, assembly, inspection, packaging and warehousing are carried out. The injection molding machine is the equipment used for injection molding of plastic printheads.

[0003] Currently, the structure of injection molding machines used to produce plastic nozzles is similar to that used in the production of other plastic products. They all inject molten plastic into a mold and then cool and solidify it. However, during the use of injection molding machines, nozzles may become clogged. Common material problems include metal shavings, dust, or degraded plastic particles mixed in the raw materials, which carbonize and clog the nozzles at high temperatures. In this case, the operator needs to remove the nozzle from the feed cylinder. However, the nozzle is usually fixed on the feed cylinder, and the surrounding space at the installation location is small, making maintenance quite troublesome. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides an injection molding apparatus for plastic nozzles.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: it includes an injection molding machine housing, a protective cover is fixedly connected to one side of the upper end of the injection molding machine housing, a hole is opened on the side wall of the protective cover and a collar is fixedly connected to the outside of the hole, a material conveying cylinder is installed on the other side of the upper end of the injection molding machine housing through an installation mechanism, the end of the material conveying cylinder is connected to the collar through a connecting mechanism, and two first mounting plates are symmetrically fixedly connected to the other side of the upper end of the injection molding machine housing about the installation mechanism;

[0006] The mounting mechanism includes a carrier plate, the lower middle part of which is rotatably connected to the upper end of the injection molding machine housing via a rotating shaft. Both sides of the carrier plate are clamped with clamping plates, and a sliding plate is slidably connected to the upper end of the carrier plate. Both sides of the upper end of the sliding plate are fixedly connected to the lower end of the feeding cylinder via support blocks.

[0007] The connecting mechanism includes a connecting pipe, one end of which is inserted into a collar, and a sealing ring for fixed connection is fitted on the outer side of one end of the connecting pipe. The other end of the connecting pipe is abutted against the end of the conveying cylinder, and a threaded outer ring for fixed connection is fitted on the outer side of the other end of the connecting pipe.

[0008] Specifically, the lower end of the carrier plate is abutted against the upper end of the injection molding machine housing, and both sides of the carrier plate have a convex structure that matches the inner shape of the corresponding card plate.

[0009] Specifically, the upper end of the skateboard is symmetrically fixedly connected with multiple fixing blocks, the upper end of the carrier plate is symmetrically fixedly connected with two mounting blocks, a limiting plate is rotatably connected to the side wall of the mounting block, and one end of the limiting plate is engaged between the corresponding two fixing blocks.

[0010] Specifically, a fixedly connected threaded inner ring is fitted on the outer side of the end of the feed cylinder, and a threaded outer ring is fitted and threadedly connected to the outer side of the threaded inner ring. The outer diameter of the threaded outer ring is larger than the outer diameter of the sealing ring, and several friction blocks are fixedly connected at equal intervals on the outer circumference of the threaded outer ring.

[0011] Specifically, the inner diameter of the connecting pipe, the hole on the side wall of the protective cover, and the inner diameter of the end of the conveying cylinder are the same and located on the same center line.

[0012] Specifically, two sliding grooves are formed on the inner wall of the carrier plate, and a sliding strip is fixedly connected to the outer wall of the slide plate. The length of the sliding strip is shorter than the length of the corresponding sliding groove, and the sliding strip is slidably connected inside the corresponding sliding groove.

[0013] Specifically, a second mounting plate is fixedly connected to the two outer walls of the injection molding machine housing. A rotating plate is rotatably connected to each of the second mounting plates. The rotating plates are all L-shaped and their horizontal portions are engaged between the corresponding clamping plates and the first mounting plate.

[0014] Specifically, positioning rods are fixedly connected to the side walls of both first mounting plates, and through holes are provided on the side walls of the clamping plates. The clamping plates are sleeved through the through holes and slide on the corresponding positioning rods.

[0015] Specifically, the sealing ring is fitted onto the outside of the collar.

[0016] The beneficial effects of the present invention are as follows: The present invention provides a detachable connecting mechanism at the end of the feed cylinder to connect the feed cylinder and the mold. At the same time, the feed cylinder is mounted on the carrier plate injection molding machine housing through the mounting mechanism. During maintenance, the carrier plate of the mounting mechanism can be rotated to offset the end of the feed cylinder from the protective cover, thereby expanding the operating space and removing the connecting mechanism from the end of the feed cylinder for easy cleaning. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the structure of the present invention during operation;

[0019] Figure 2 This is a schematic diagram of the structure during maintenance of the present invention;

[0020] Figure 3 A cross-section of the mounting mechanism of the present invention. Figure 1 ;

[0021] Figure 4 A cross-section of the mounting mechanism of the present invention. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the connection mechanism of the present invention.

[0023] In the diagram: 1. Injection molding machine housing; 2. Protective cover; 3. Collar; 4. Mounting mechanism; 41. Carrier plate; 42. Clamping plate; 43. Through hole; 44. Slide plate; 45. Slide bar; 46. Support block; 47. Fixing block; 48. Mounting block; 49. Limiting plate; 410. Slide groove; 411. Rotating shaft; 5. Conveying cylinder; 6. Connecting mechanism; 61. Connecting pipe; 62. Sealing ring; 63. Threaded outer ring; 64. Friction block; 7. First mounting plate; 8. Positioning rod; 9. Second mounting plate; 10. Rotating plate; 11. Threaded inner ring. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] like Figures 1-5As shown, the injection molding device for the plastic nozzle of the present invention includes an injection molding machine housing 1. A protective cover 2 is fixedly connected to one side of the upper end of the injection molding machine housing 1. A hole is opened on the side wall of the protective cover 2, and a collar 3 is fixedly connected to the outside of the hole. A feed cylinder 5 is installed on the other side of the upper end of the injection molding machine housing 1 through an installation mechanism 4. The end of the feed cylinder 5 is connected to the collar 3 through a connecting mechanism 6. A threaded inner ring 11 is fixedly connected to the outside of the end of the feed cylinder 5. The other side of the upper end of the injection molding machine housing 1 is connected to the installation mechanism 4. The system includes two first mounting plates 7, each with a positioning rod 8 fixedly connected to its side wall. The mounting mechanism 4 includes a carrier plate 41, the lower center of which is rotatably connected to the upper end of the injection molding machine housing 1 via a rotating shaft 411. Both sides of the carrier plate 41 are fitted with clamping plates 42, each clamping plate 42 having a through hole 43 on its side wall. The clamping plates 42 are fitted through the through holes 43 and slide on the corresponding positioning rods 8. Two sliding grooves 410 are formed on the inner wall of the carrier plate 41, and a sliding plate 44 is slidably connected to the upper end of the carrier plate 41. A slide bar 45 is fixedly connected to the outer wall of the slide 4. The length of the slide bar 45 is shorter than the length of the corresponding slide groove 410. The slide bar 45 is slidably connected inside the corresponding slide groove 410. The upper ends of the slide plate 44 are fixedly connected to the lower ends of the feed cylinder 5 via support blocks 46. Multiple fixing blocks 47 are symmetrically fixedly connected to the upper end of the slide plate 44. Two mounting blocks 48 are symmetrically fixedly connected to the upper end of the carrier plate 41. A limiting plate 49 is rotatably connected to the side wall of the mounting block 48. One end of the limiting plate 49 is engaged between the two corresponding fixing blocks 47. The connecting mechanism 6 includes A connecting pipe 61 is inserted into a collar 3 at one end. A sealing ring 62 is fixedly connected to the outer side of one end of the connecting pipe 61. The sealing ring 62 is fitted on the outer side of the collar 3. The other end of the connecting pipe 61 is connected to the end of the conveying cylinder 5. A threaded outer ring 63 is fixedly connected to the outer side of the other end of the connecting pipe 61. The threaded outer ring 63 is fitted and threadedly connected to the outer side of the threaded inner ring 11. The outer diameter of the threaded outer ring 63 is larger than the outer diameter of the sealing ring 62. Several friction blocks 64 are fixedly connected at equal intervals on the outer circumference of the threaded outer ring 63.

[0026] Specifically, the inner diameter of the connecting pipe 61 is the same as the hole on the side wall of the protective cover 2 and the inner diameter of the end of the conveying cylinder 5, and they are located on the same center line, which facilitates the flow of the molten plastic in the conveying cylinder 5 into the connecting pipe 61.

[0027] Specifically, two second mounting plates 9 are fixedly connected to the two outer walls of the injection molding machine housing 1. Each second mounting plate 9 is rotatably connected to a rotating plate 10. The rotating plates 10 are all L-shaped and their horizontal parts are locked between the corresponding clamping plate 42 and the first mounting plate 7. When in use, the rotating plate 10 is locked between the clamping plate 42 and the first mounting plate 7, which can hold the clamping plate 42 in place and prevent the clamping plate 42 from detaching from the carrier plate 41.

[0028] Specifically, the lower end of the carrier plate 41 is connected to the upper end of the injection molding machine housing 1. Both sides of the carrier plate 41 have a convex structure and match the inner shape of the corresponding clamping plate 42, so that the clamping plate 42 can clamp the carrier plate 41 and fix the position of the carrier plate 41.

[0029] In use, the power is turned on, the feeding cylinder 5 melts the internal plastic granules, and conveys them to the mold through the connecting pipe 61 for injection molding. When a blockage occurs in the connecting pipe 61, the limiting plate 49 is rotated out from between the two corresponding fixing blocks 47. The fixing blocks 47 are grasped, and the sliding plate 44 is pulled away from the protective cover 2 to pull the connecting pipe 61 out of the collar 3. The limiting plate 49 is then locked between the two corresponding fixing blocks 47 to fix the position of the sliding plate 44. The rotating plate 10 is rotated to move away from the corresponding clamping plate 42 and the first mounting plate 7. The clamping plate 42 is slid until it abuts against the corresponding first mounting plate 7. Then the carrier plate 41 is rotated to displace the end of the feeding cylinder 5 from the protective cover 2. The threaded outer ring 63 is grasped and rotated to remove the threaded outer ring 63 from the threaded inner ring 11. Separate the connecting pipe 61 and the conveying cylinder 5, and then clean out any foreign objects blocking the connecting pipe 61. After cleaning, place the connecting pipe 61 against the end of the conveying cylinder 5, and thread the outer threaded ring 63 onto the inner threaded ring 11. Rotate the carrier plate 41 in the opposite direction and clamp the clamping plate 42 onto the side of the carrier plate 41 to fix the position of the carrier plate 41. Rotate the rotating plate 10 between the corresponding clamping plate 42 and the first mounting plate 7 to ensure that the clamping plate 42 cannot detach from the carrier plate 41. Rotate the limiting plate 49 away from the two fixing blocks 47 and slide the sliding plate 44 towards the protective cover 2 until the connecting pipe 61 is inserted into the collar 3. At this time, the sealing ring 62 is fitted on the outside of the collar 3 to seal the gap between the connecting pipe 61 and the collar 3. Rotate the limiting plate 49 between the two fixing blocks 47 at this time, and you can continue working.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding apparatus for plastic nozzles, comprising an injection molding machine housing (1), characterized in that, A protective cover (2) is fixedly connected to one side of the upper end of the injection molding machine housing (1). A hole is opened on the side wall of the protective cover (2) and a collar (3) is fixedly connected to the outside of the hole. A material conveying cylinder (5) is installed on the other side of the upper end of the injection molding machine housing (1) through an installation mechanism (4). The end of the material conveying cylinder (5) is connected to the collar (3) through a connecting mechanism (6). Two first mounting plates (7) are symmetrically fixedly connected to the other side of the upper end of the injection molding machine housing (1) about the installation mechanism (4). The mounting mechanism (4) includes a carrier plate (41). The lower middle part of the carrier plate (41) is rotatably connected to the upper end of the injection molding machine housing (1) via a rotating shaft (411). Both sides of the carrier plate (41) are clamped with clamping plates (42). The upper end of the carrier plate (41) is slidably connected with a sliding plate (44). Both sides of the upper end of the sliding plate (44) are fixedly connected to the lower end of the material conveying cylinder (5) via a support block (46). The connecting mechanism (6) includes a connecting pipe (61), one end of which is inserted into the collar (3), and a sealing ring (62) for fixed connection is sleeved on the outer side of one end of the connecting pipe (61). The other end of the connecting pipe (61) is connected to the end of the conveying cylinder (5), and a threaded outer ring (63) for fixed connection is sleeved on the outer side of the other end of the connecting pipe (61). The feed cylinder (5) has a fixedly connected threaded inner ring (11) sleeved on the outer side of its end. The threaded outer ring (63) is sleeved and threadedly connected to the outer side of the threaded inner ring (11). The outer diameter of the threaded outer ring (63) is larger than the outer diameter of the sealing ring (62). Several friction blocks (64) are fixedly connected at equal intervals on the outer circumference of the threaded outer ring (63). Positioning rods (8) are fixedly connected to the side walls of the two first mounting plates (7). A through hole (43) is provided on the side wall of the clamping plate (42). The clamping plate (42) is sleeved on and slides on the corresponding positioning rod (8) through the through hole (43). The sealing ring (62) is fitted on the outside of the collar (3).

2. The injection molding apparatus for the plastic nozzle according to claim 1, characterized in that: The lower end of the carrier plate (41) is connected to the upper end of the injection molding machine housing (1). Both sides of the carrier plate (41) have a convex structure and match the inner shape of the corresponding card plate (42).

3. The injection molding apparatus for the plastic nozzle according to claim 1, characterized in that: The upper end of the slide plate (44) is symmetrically fixed with multiple fixing blocks (47), and the upper end of the carrier plate (41) is symmetrically fixed with two mounting blocks (48). A limiting plate (49) is rotatably connected to the side wall of the mounting block (48), and one end of the limiting plate (49) is engaged between the corresponding two fixing blocks (47).

4. The injection molding apparatus for the plastic nozzle according to claim 1, characterized in that: The inner diameter of the connecting pipe (61) is the same as the hole on the side wall of the protective cover (2) and the inner diameter of the end of the conveying cylinder (5), and they are located on the same center line.

5. The injection molding apparatus for the plastic nozzle according to claim 1, characterized in that: Two grooves (410) are provided on the inner wall of the carrier plate (41), and a slide bar (45) is fixedly connected to the outer wall of the slide plate (44). The length of the slide bar (45) is shorter than the length of the corresponding groove (410), and the slide bar (45) is slidably connected inside the corresponding groove (410).

6. The injection molding apparatus for the plastic nozzle according to claim 1, characterized in that: The two outer walls of the injection molding machine housing (1) are fixedly connected to a second mounting plate (9), and a rotating plate (10) is rotatably connected to each of the second mounting plates (9). The rotating plates (10) are all L-shaped and their horizontal parts are locked between the corresponding locking plate (42) and the first mounting plate (7).

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