Injection molding mechanism capable of conveniently replacing nozzle of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding mechanism convenient for replacing a nozzle of an injection molding machine, which comprises a shell, a feeding pipe is fixedly arranged above the shell, and a conveying pipe is fixedly arranged in the shell; and the mounting mechanism is arranged at the left end of the conveying pipe. The injection molding nozzle is pressed, the clamping block is separated from the interior of the clamping groove, then the injection molding nozzle is rotated to the position below the vertical groove, the injection molding nozzle can be taken out after the injection molding nozzle is loosened, and then the injection molding nozzle needing to be replaced is taken out and inserted from the interior of the vertical groove. Compared with an existing injection molding mechanism with the injection molding machine nozzle convenient to replace, the injection molding mechanism with the injection molding machine nozzle convenient to replace has the advantages that the injection molding nozzle can be replaced by pressing and rotating, and the situation of thread slipping is prevented; and the service life of the injection nozzle is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and more specifically, to an injection molding mechanism for facilitating the replacement of an injection molding machine nozzle. Background Art

[0002] An injection molding machine, also known as an injection molding machine or an injection machine, is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. During long-term use, impurities in the molten plastic ejected by the injection molding machine will clog the nozzle of the injection mold. At this time, it is necessary to stop the machine to disassemble the nozzle for cleaning or replacement.

[0003] For example, an injection molding mechanism for facilitating the replacement of an injection molding machine nozzle with the publication number CN212920184U includes an injection molding machine base, and is characterized in that: the upper surface of the injection molding machine base is fixedly installed with an injection molding machine housing, the injection molding machine housing is connected with an installation housing through a screw outer sleeve, a motor is fixedly installed inside the installation housing, one end of a rotating shaft installed on the output end of the motor passes through and extends into the screw outer sleeve and is fixedly installed with a feeding screw, one end of the feeding screw is fixedly installed with a nozzle, a dredging thimble is fixedly installed inside the nozzle at one end of the feeding screw, a heating wire is fixedly installed inside the cavity of the screw outer sleeve, an electric push rod is fixedly installed on the upper surface of the installation housing, a connecting rod is fixedly installed at the output end of the electric push rod, a material dredging shaft is fixedly installed at one end of the connecting rod, a shaft sleeve is sleeved on the outer surface of the material dredging shaft, a hopper is fixedly installed on the upper surface of the installation housing, and a fixed cross bar is fixedly installed on the inner wall of the hopper. The material dredging shaft is inserted and connected with the fixed cross bar through the shaft sleeve.

[0004] This device adopts a threaded form, and the nozzle is screwed out by rotating the nozzle, realizing the convenient replacement of the nozzle. This form of installation method will cause the thread to slip after long-term use. At the same time, the housing with a threaded groove is prone to breakage. Therefore, it needs to be improved. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an injection molding mechanism for facilitating the replacement of an injection molding machine nozzle, which has the advantage of facilitating the replacement of the injection molding machine nozzle.

[0006] To achieve the above object, the utility model provides the following technical solution: An injection molding mechanism for facilitating the replacement of an injection molding machine nozzle, comprising:

[0007] A housing, an inlet pipe is fixedly installed above the housing, and a transport pipe is fixedly installed inside the housing;

[0008] An installation mechanism, which is arranged at the left end of the transport pipe;

[0009] A fixing mechanism, the fixing mechanism is arranged outside the installation mechanism;

[0010] Among them, the installation mechanism includes an injection nozzle;

[0011] The left end of the transport pipe is fixedly installed with a cylinder, the inner side of the cylinder is fixedly installed with an inner ring block, vertical grooves are opened on both sides of the inner ring block, a clamping groove is opened at the bottom of the inner ring block, an installation outer ring is movably installed inside the inner ring block, and both sides of the installation outer ring are fixedly installed with clamping blocks located inside the clamping groove. An injection nozzle is fixedly installed inside the installation outer ring, and a fixed ring block is fixedly installed on the outer side of the left end of the injection nozzle.

[0012] As a preferred technical solution of the present invention, the fixing mechanism includes a fixing block;

[0013] The left end of the transport pipe is fixedly installed with a bottom ring block, the left side of the bottom ring block is fixedly installed with a connecting block, an activity groove is opened inside the connecting block, a round rod is fixedly installed inside the activity groove, an activity block is movably sleeved on the outer side of the round rod, and a fixing block located outside the fixed ring block is fixedly installed above the activity block.

[0014] As a preferred technical solution of the present invention, a triangular clamping ring is movably installed above the fixing block, a threaded ring is fixedly installed above the triangular clamping ring, and a turning knob is fixedly installed above the threaded ring.

[0015] As a preferred technical solution of the present invention, the left end of the transport pipe is fixedly installed with a ring shell located outside the bottom ring block, a threaded groove is opened inside the ring shell, and the threaded groove corresponds to the threaded ring.

[0016] As a preferred technical solution of the present invention, a motor is fixedly installed inside the right end of the housing, and a spiral shaft extending into the transport pipe is fixedly installed at the left end of the motor.

[0017] As a preferred technical solution of the present invention, a return spring is elastically installed between the inner side of the activity groove and the inner side of the activity block, and the return spring is movably connected to the outer side of the round rod.

[0018] As a preferred technical solution of the present invention, a telescopic spring is elastically installed at the left end of the transport pipe, and the telescopic spring is located at the bottom side of the clamping block.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In this utility model, by pressing the injection molding nozzle, the clamping block is disengaged from the inside of the card slot, and then the injection molding nozzle is rotated. The injection molding nozzle is rotated to the lower part of the vertical slot, and after releasing the hand, the injection molding nozzle can be taken out. Then, take out the injection molding nozzle to be replaced, insert it from the inside of the vertical slot, and then rotate the injection molding nozzle to rotate the clamping block to the lower part of the card slot to complete the installation. Compared with an existing injection molding mechanism that facilitates the replacement of the injection molding nozzle of an injection molding machine, this injection molding mechanism that facilitates the replacement of the injection molding nozzle of an injection molding machine can complete the replacement of the injection molding nozzle by pressing and rotating, preventing the occurrence of thread slipping and improving the service life of the injection molding nozzle.

[0021] 2. In this utility model, by rotating the knob, the threaded ring drives the triangular clamping ring to move downward to squeeze the fixed block, so that the fixed block drives the movable block to contract inward to squeeze the return spring, causing the return spring to deform, thereby improving the fixation of the fixed block on the fixed ring block. Compared with an existing injection molding mechanism that facilitates the replacement of the injection molding nozzle of an injection molding machine, this injection molding mechanism that facilitates the replacement of the injection molding nozzle of an injection molding machine drives the fixed block to contract inward by rotating the knob to fix the fixed ring block, preventing the occurrence of unstable fixation caused by long-term use of the fixed ring block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic cross-sectional view of the present utility model in the horizontal direction;

[0024] Figure 3 is a schematic cross-sectional view of the fixing mechanism of the present utility model in the horizontal direction;

[0025] Figure 4 is Figure 3 a partial enlarged structural diagram of part A in

[0026] Figure 5 is a schematic overall structural diagram of the present utility model;

[0027] Figure 6 is a schematic rear view structural diagram of the installation mechanism of the present utility model.

[0028] In the figure: 1. Housing; 2. Feed pipe; 3. Transport pipe; 4. Motor; 5. Screw shaft; 6. Injection molding nozzle; 7. Fixed ring block; 8. Installation outer ring; 9. Clamping block; 10. Ring shell; 11. Thread groove; 12. Connecting block; 13. Fixed block; 14. Movable groove; 15. Round rod; 16. Movable block; 17. Return spring; 18. Triangular clamping ring; 19. Threaded ring; 20. Knob; 21. Cylinder; 22. Inner ring block; 23. Vertical slot; 24. Telescopic spring; 25. Card slot; 26. Bottom ring block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] As Figures 1 to 6 shown, the present utility model provides an injection molding mechanism that facilitates the replacement of an injection molding machine nozzle, including:

[0031] A housing 1, with a feed pipe 2 fixedly installed above the housing 1, and a transport pipe 3 fixedly installed inside the housing 1;

[0032] An installation mechanism, which is arranged at the left end of the transport pipe 3;

[0033] A fixing mechanism, which is arranged outside the installation mechanism;

[0034] Among them, the installation mechanism includes an injection molding nozzle 6;

[0035] A cylinder 21 is fixedly installed at the left end of the transport pipe 3. An inner ring block 22 is fixedly installed inside the cylinder 21. Vertical grooves 23 are formed on both sides of the inner ring block 22, and a card slot 25 is formed at the bottom of the inner ring block 22. An installation outer ring 8 is movably installed inside the inner ring block 22. Blocks 9 located inside the card slot 25 are fixedly installed on both sides of the installation outer ring 8. An injection molding nozzle 6 is fixedly installed inside the installation outer ring 8, and a fixed circular ring block 7 is fixedly installed on the outer side of the left end of the injection molding nozzle 6.

[0036] When it is necessary to replace the injection molding nozzle 6, only need to press the injection molding nozzle 6 to make the injection molding nozzle 6 drive the installation outer ring 8 to move inward. The installation outer ring 8 drives the block 9 to disengage from the card slot 25, and compresses the telescopic spring 24. Then rotate the injection molding nozzle 6 to rotate the block 9 below the vertical groove 23. Then, after releasing the hand, the telescopic spring 24 releases elastic potential energy to push the block 9 out of the vertical groove 23. Then take out the injection molding nozzle 6 that needs to be replaced, align the block 9 with the vertical groove 23 and insert it, and then rotate the block 9 below the card slot 25 and release the hand to complete the installation of the injection molding nozzle 6.

[0037] By pressing the injection nozzle 6, the clamping block 9 is disengaged from the inside of the clamping groove 25. Then, rotate the injection nozzle 6 and rotate it to below the vertical groove 23. After releasing the hand, the injection nozzle 6 can be taken out. Then, take out the injection nozzle 6 that needs to be replaced and insert it from the inside of the vertical groove 23. Then, rotate the injection nozzle 6 to rotate the clamping block 9 to below the clamping groove 25 to complete the installation. Compared with an existing injection mechanism that facilitates the replacement of the injection nozzle of an injection molding machine, this injection mechanism that facilitates the replacement of the injection nozzle of an injection molding machine can complete the replacement of the injection nozzle 6 by pressing and rotating, preventing the occurrence of thread slipping and improving the service life of the injection nozzle 6.

[0038] Among them, the fixing mechanism includes a fixing block 13;

[0039] The left end of the transport pipe 3 is fixedly installed with a bottom ring block 26. The left side of the bottom ring block 26 is fixedly installed with a connecting block 12. An activity groove 14 is opened inside the connecting block 12. A round rod 15 is fixedly installed inside the activity groove 14. An activity block 16 is movably sleeved on the outside of the round rod 15. Above the activity block 16 is fixedly installed a fixing block 13 located outside the fixed ring block 7.

[0040] After the injection nozzle 6 is installed, rotate the rotary knob 20. The rotary knob 20 drives the threaded ring 19 to rotate inside the threaded groove 11, driving the triangular clamping ring 18 to move downward. The triangular clamping ring 18 squeezes the fixing block 13, causing the fixing block 13 to drive the activity block 16 to contract inward. The activity block 16 moves inward around the round rod 15 to squeeze the return spring 17, causing the return spring 17 to deform, so that the fixing block 13 contracts inward to fix the fixed ring block 7.

[0041] By rotating the rotary knob 20, the threaded ring 19 drives the triangular clamping ring 18 to move downward to squeeze the fixing block 13, causing the fixing block 13 to drive the activity block 16 to contract inward to squeeze the return spring 17, causing the return spring 17 to deform, thereby improving the fixing of the fixing block 13 to the fixed ring block 7. Compared with an existing injection mechanism that facilitates the replacement of the injection nozzle of an injection molding machine, this injection mechanism that facilitates the replacement of the injection nozzle of an injection molding machine fixes the fixed ring block 7 by rotating the rotary knob 20 to drive the triangular clamping ring 18 to drive the fixing block 13 to contract inward, preventing the situation of unstable fixing caused by long-term use of the fixed ring block 7.

[0042] Among them, a triangular clamping ring 18 is movably installed above the fixing block 13. A threaded ring 19 is fixedly installed above the triangular clamping ring 18. A rotary knob 20 is fixedly installed above the threaded ring 19.

[0043] Rotate the rotary knob 20 to drive the threaded ring 19 to drive the triangular clamping ring 18 to move downward to squeeze the fixing block 13, causing the fixing block 13 to drive the activity block 16 to contract inward to squeeze the return spring 17.

[0044] Among them, a circular ring shell 10 located outside the bottom ring block 26 is fixedly installed at the left end of the conveying pipe 3. A threaded groove 11 is provided inside the circular ring shell 10, and the threaded groove 11 corresponds to the threaded ring 19.

[0045] Rotate the knob 20. The knob 20 drives the threaded ring 19 to rotate inside the threaded groove 11, driving the triangular clamping ring 18 to move downward, and the triangular clamping ring 18 squeezes the fixed block 13.

[0046] Among them, a motor 4 is fixedly installed inside the right end of the housing 1, and a spiral shaft 5 extending into the conveying pipe 3 is fixedly installed at the left end of the motor 4.

[0047] The motor 4 drives the spiral shaft 5 to rotate, and the spiral shaft 5 rotates to transport the material into the injection nozzle 6, thus completing the injection operation.

[0048] Among them, a return spring 17 is elastically installed between the inner side of the movable groove 14 and the inner side of the movable block 16, and the return spring 17 is movably connected to the outside of the round rod 15.

[0049] The fixed block 13 drives the movable block 16 to contract inward. The movable block 16 moves inward around the round rod 15 to squeeze the return spring 17, causing the return spring 17 to deform, and the fixed block 13 contracts inward to fix the fixed ring block 7.

[0050] Among them, a telescopic spring 24 is elastically installed at the left end of the conveying pipe 3, and the telescopic spring 24 is located at the bottom side of the block 9.

[0051] The installation outer ring 8 drives the block 9 to disengage from the card slot 25, squeezes the telescopic spring 24, then rotates the injection nozzle 6, rotates the block 9 to the lower side of the vertical slot 23, and then after releasing the hand, the telescopic spring 24 releases elastic potential energy to push the block 9 out of the vertical slot 23.

[0052] The working principle and usage process of the present utility model:

[0053] When it is necessary to replace the injection nozzle 6, just press the injection nozzle 6, so that the injection nozzle 6 drives the installation outer ring 8 to move inward. The installation outer ring 8 drives the block 9 to disengage from the card slot 25, squeezes the telescopic spring 24, then rotates the injection nozzle 6, rotates the block 9 to the lower side of the vertical slot 23, and then after releasing the hand, the telescopic spring 24 releases elastic potential energy to push the block 9 out of the vertical slot 23. Then take out the injection nozzle 6 to be replaced, align the block 9 with the vertical slot 23 and insert it, and then rotate the block 9 to the lower side of the card slot 25 and release the hand to complete the installation of the injection nozzle 6.

[0054] After the injection molding nozzle 6 is installed, rotate the knob 20. The knob 20 drives the threaded ring 19 to rotate inside the threaded groove 11, driving the triangular clamping ring 18 to move downward. The triangular clamping ring 18 squeezes the fixed block 13, causing the fixed block 13 to drive the movable block 16 to contract inward. The movable block 16 moves inward around the round rod 15 to squeeze the return spring 17, causing the return spring 17 to deform, and causing the fixed block 13 to contract inward to fix the fixed ring block 7.

[0055] It should be noted that in this article, relational terms such as first and second 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. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding mechanism that is convenient for replacing the nozzle of an injection molding machine, characterized in that: Included are: A shell (1), a feed pipe (2) is fixedly mounted above the shell (1), and a transport pipe (3) is fixedly mounted inside the shell (1); A mounting mechanism, the mounting mechanism being arranged at the left end of the transport pipe (3); A fixing mechanism, wherein the fixing mechanism is arranged outside the mounting mechanism; Wherein, the installation mechanism comprises an injection nozzle (6); A cylinder (21) is fixedly mounted on the left end of the transport pipe (3), an inner ring block (22) is fixedly mounted on the inner side of the cylinder (21), vertical grooves (23) are provided on both sides of the inner ring block (22), a clamping groove (25) is provided on the bottom of the inner ring block (22), an outer ring (8) is movably mounted inside the inner ring block (22), clamping blocks (9) located inside the clamping groove (25) are fixedly mounted on both sides of the outer ring (8), an injection nozzle (6) is fixedly mounted inside the outer ring (8), and a fixed circular ring block (7) is fixedly mounted on the outer side of the left end of the injection nozzle (6).

2. The injection molding mechanism for facilitating replacement of the nozzle of an injection molding machine according to claim 1, characterized in that: The fixing mechanism comprises a fixing block (13); A bottom ring block (26) is fixedly mounted on the left end of the transport pipe (3), a connecting block (12) is fixedly mounted on the left side of the bottom ring block (26), a movable groove (14) is provided inside the connecting block (12), a round rod (15) is fixedly mounted inside the movable groove (14), a movable block (16) is movably sleeved on the outer side of the round rod (15), and a fixed block (13) located on the outer side of the fixed circular ring block (7) is fixedly mounted above the movable block (16).

3. The injection molding mechanism for facilitating replacement of the nozzle of an injection molding machine according to claim 2, characterized in that: A triangular clamp ring (18) is movably mounted above the fixed block (13), a threaded circular ring (19) is fixedly mounted above the triangular clamp ring (18), and a rotating knob (20) is fixedly mounted above the threaded circular ring (19).

4. The injection molding mechanism for facilitating replacement of the injection molding machine nozzle according to claim 1, characterized in that: A circular ring shell (10) located outside the bottom ring block (26) is fixedly mounted on the left end of the transport pipe (3), and a thread groove (11) is provided on the inner side of the circular ring shell (10), and the thread groove (11) corresponds to the threaded circular ring (19).

5. The injection molding mechanism for facilitating replacement of the nozzle of an injection molding machine according to claim 1, characterized in that: A motor (4) is fixedly mounted inside the right end of the housing (1), and a screw shaft (5) extending into the interior of the transport tube (3) is fixedly mounted on the left end of the motor (4).

6. The injection molding mechanism for facilitating replacement of the nozzle of an injection molding machine according to claim 2, characterized in that; A return spring (17) is elastically installed between the inner side of the movable groove (14) and the inner side of the movable block (16), and the return spring (17) is movably connected to the outer side of the round rod (15).

7. The injection molding mechanism for facilitating replacement of the nozzle of an injection molding machine according to claim 1, characterized in that: A telescopic spring (24) is elastically mounted on the left end of the transport tube (3), and the telescopic spring (24) is located at the bottom side of the clamping block (9).

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