Leak-proof injection molding head of injection molding machine

Abstract

The utility model discloses a leakproof injection molding head of an injection molding machine, which comprises an injection molding machine seat and an injection molding head body, the inner side of the injection molding machine seat is fixedly provided with a fixed ring seat, the upper side of the injection molding head body is fixedly provided with a plurality of connecting blocks, the upper side of the fixed ring seat is provided with a plurality of slots, and the inner side of the fixed ring seat is also provided with a plurality of rotating grooves; a plurality of sets of fixing mechanisms are arranged on one side of the injection molding machine base, a sealing mechanism is arranged at the top end of the injection molding head body, a flow guide base is fixedly arranged on the inner wall of the injection molding head body, and a slidable flow guide table is arranged on the inner side of the flow guide base; a flow guide cavity is formed in the upper end of the flow guide table, a plurality of flow guide grooves are formed in the outer side of the flow guide table, a plurality of circulating grooves are formed in the lower side of the flow guide seat, and the lower end of the flow guide seat is connected with an adjusting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding head of an injection molding machine which is leak-proof. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It 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 eject and fill the mold cavity. The most important part of the injection molding machine is the injection head. Different types of injection heads are often installed for injection molding operations in different environments.

[0003] The existing injection molding machine injection head has a simple structure, and there is no corresponding anti-leakage mechanism in the middle of the injection head. When the injection head is not in use, raw materials are prone to leakage, which will cause a waste of raw materials. In view of the above problems, a solution is proposed below. Utility Model Content

[0004] The utility model aims to provide an injection molding head of an injection molding machine which is leak-proof and has the advantages of good leak-proof effect and convenient disassembly and assembly of the injection molding head.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A leak-proof injection molding head for an injection molding machine comprises an injection molding machine seat and an injection molding head body, wherein the injection molding machine seat is detachably connected to the injection molding head body, a fixed ring seat is fixedly arranged on the inner side of the injection molding machine seat, a plurality of connecting blocks are fixedly arranged on the upper side of the injection molding head body, a plurality of slots are opened on the upper side of the fixed ring seat, a plurality of the slots are respectively matched with a plurality of connecting blocks, a plurality of rotating grooves are further arranged on the inner side of the fixed ring seat, a plurality of the rotating grooves are respectively connected with the lower side of the slots, and a plurality of connecting blocks are slidably located in the rotating grooves, and the A plurality of fixing mechanisms are arranged on one side of the injection molding machine base, and the connecting block is fixed in the rotating groove through the fixing mechanism, a sealing mechanism is arranged on the top of the injection molding head body, a guide seat is fixed on the inner wall of the injection molding head body, a slidable guide platform is arranged on the inner side of the guide seat, a guide cavity is arranged on the upper end of the guide platform, a plurality of guide grooves are opened on the outer side of the guide platform, and a plurality of guide grooves are respectively connected with the guide cavity, a plurality of flow grooves are opened on the lower side of the guide seat, and an adjustment mechanism is connected to the lower end of the guide seat.

[0007] Preferably, the fixing mechanism includes a fixing pin passed through the outside of the injection molding machine base, a connecting spring passed through the fixing pin, and the connecting spring is connected between the outer wall of the injection molding machine base and the tail end of the fixing pin, a fixing hole is provided on one side of the connecting block, and a fixing ring seat is passed through the top end of the fixing pin and is located in the fixing hole.

[0008] Preferably, the sealing mechanism comprises a sealing ring, the top end of the injection head body is connected to a plurality of connecting columns, and the sealing ring is connected to the top ends of the plurality of connecting columns, and the lower side of the sealing ring fits with the upper end of the fixed ring seat.

[0009] Preferably, the adjustment mechanism includes a plurality of return springs, the lower end of the guide seat is connected to a plurality of brackets, an adjustment seat is fixedly provided on one side of the plurality of brackets, a slidable adjustment column is passed through the adjustment seat, and the top end of the adjustment column is fixedly connected to the lower end of the guide platform, the plurality of return springs are located in the adjustment seat, and the two ends are respectively fixedly connected to the lower end of the adjustment column and the inner bottom of the adjustment seat.

[0010] The beneficial effects of the utility model are:

[0011] 1. Place the injection head body into the injection molding machine base, and insert several connecting blocks into several slots respectively. Then, continue to press the injection head body downward to make the connecting block slide down along the slot. When the lower end of the connecting block fits with the bottom of the slot, the injection head body can be rotated to make the connecting block rotate along the rotating groove. Therefore, the connecting block can be rotated to the rightmost end of the rotating groove. Finally, the connecting block can be fixed in the rotating groove by a fixing mechanism to achieve fixation between several connecting blocks and the fixed ring seat, thereby achieving fixed connection between the injection molding machine base and the injection head body. Similarly, the disassembly between the injection molding machine base and the injection head body can also be achieved.

[0012] 2. When the injection molding machine is started, the plastic solution flows out from the injection molding machine base and then flows into the injection head body. When the plastic solution continues to flow in, the pressure at the upper end of the guide table gradually increases, which can cause the guide table to gradually move downward. When the guide table moves to the point where the guide groove and the flow groove are connected, the plastic solution can flow through the guide cavity to several guide grooves, and finally to several flow grooves, so that the plastic solution can flow out of the injection head body to the outside world. When the injection molding machine stops working, the pressure at the upper end of the guide table gradually decreases. At this time, the guide table can be pushed upward by the adjustment mechanism to separate the guide groove from the flow groove. At this time, the circulation of the plastic solution can be blocked, and finally the continuous leakage of the plastic solution can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment;

[0014] Figure 2 Schematic diagram of the internal structure of the injection head body in the embodiment;

[0015] Figure 3 A top view of an injection molding machine base in the embodiment;

[0016] Figure 4 It is a cross-sectional view of the injection molding machine base in the embodiment.

[0017] Figure numerals: 1. injection molding machine seat; 2. plastic head body; 3. fixed ring seat; 4. connecting block; 5. slot; 6. rotating slot; 7. fixing mechanism; 8. sealing mechanism; 9. guide seat; 10. guide platform; 11. guide cavity; 12. guide groove; 13. circulation groove; 14. adjustment mechanism; 15. fixing pin; 16. connecting spring; 17. fixing hole; 18. sealing ring; 19. connecting column; 20. reset spring; 21. bracket; 22. adjustment seat; 23. adjustment column. DETAILED DESCRIPTION

[0018] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0019] like Figures 1 to 4As shown, a leak-proof injection molding head of an injection molding machine comprises an injection molding machine base 1 and an injection molding head body 2, and the injection molding machine base 1 is detachably connected to the injection molding head body 2, a fixed ring base 3 is fixedly arranged on the inner side of the injection molding machine base 1, and a plurality of connecting blocks 4 are fixedly arranged on the upper side of the injection molding head body 2, a plurality of slots 5 are opened on the upper side of the fixed ring base 3, and the plurality of slots 5 are respectively matched with the plurality of connecting blocks 4, a plurality of rotating grooves 6 are also arranged on the inner side of the fixed ring base 3, and the plurality of rotating grooves 6 are respectively connected with the lower sides of the slots 5, and the plurality of connecting blocks 4 are slidably located in the rotating grooves 6, a plurality of groups of fixing mechanisms 7 are arranged on one side of the injection molding machine base 1, and the connecting blocks 4 are fixed in the rotating grooves 6 by the fixing mechanisms 7, and the injection molding head body 2 is installed as needed. When the injection molding machine is in operation, it is only necessary to put the injection head body 2 into the injection molding machine base 1, and insert several connecting blocks 4 into several slots 5 respectively, and then the injection head body 2 can be continued to be pressed downward to make the connecting blocks 4 slide downward along the slots 5. When the lower end of the connecting block 4 fits with the bottom of the slots 5, the injection head body 2 can be rotated to make the connecting block 4 rotate along the rotating groove 6, so that the connecting block 4 can be rotated to the rightmost end of the rotating groove 6, and finally the connecting block 4 can be fixed in the rotating groove 6 by the fixing mechanism 7 to realize the fixation between several connecting blocks 4 and the fixing ring seat 3, thereby realizing the fixed connection between the injection molding machine base 1 and the injection head body 2, and the disassembly between the injection molding machine base 1 and the injection head body 2 can also be realized by the same token.

[0020] The fixing mechanism 7 includes a fixing pin 15 which is passed through the outside of the injection molding machine base 1. A connecting spring 16 is passed through the fixing pin 15, and the connecting spring 16 is connected between the outer wall of the injection molding machine base 1 and the tail end of the fixing pin 15. A fixing hole 17 is provided on one side of the connecting block 4. The top end of the fixing pin 15 passes through the fixing ring seat 3 and is located in the fixing hole 17. By pulling the fixing pin 15, the top end of the fixing pin 15 is disengaged from the fixing hole 17. At this time, the connecting spring 16 is stretched to generate elastic force, and then the connecting block 4 can be disassembled, thereby realizing the disassembly and replacement of the injection molding head body 2. Conversely, when the connecting block 4 is reinstalled in the rotating groove 6, the fixing pin 15 can be driven back to the initial position by the reset action of the connecting spring 16, so that the top end of the fixing pin 15 can be pushed into the fixing hole 17 again to fix the connecting block 4, thereby realizing the fixed installation of the injection molding head body 2.

[0021] A sealing mechanism 8 is provided at the top of the injection head body 2, and the sealing mechanism 8 includes a sealing ring 18. A plurality of connecting columns 19 are connected to the top of the injection head body 2, and the sealing ring 18 is connected to the top of the plurality of connecting columns 19. The lower side of the sealing ring 18 fits with the upper end of the fixed ring seat 3. When the injection head body 2 is fixedly connected to the injection molding machine base 1, the sealing ring 18 fits with the upper end of the fixed ring seat 3. Therefore, the sealing between the injection head body 2 and the injection molding machine base 1 can be increased by the sealing ring 18.

[0022] A guide seat 9 is fixedly provided on the inner wall of the injection head body 2, a slidable guide platform 10 is provided on the inner side of the guide seat 9, a guide cavity 11 is provided on the upper end of the guide platform 10, a plurality of guide grooves 12 are provided on the outer side of the guide platform 10, and the plurality of guide grooves 12 are respectively connected with the guide cavity 11, a plurality of flow grooves 13 are provided on the lower side of the guide seat 9, and an adjusting mechanism 14 is connected to the lower end of the guide seat 9. When the injection molding machine is started, the plastic solution flows out from the injection molding machine seat 1 and flows into the injection head body 2. When the plastic solution continuously flows in, the pressure on the upper end of the guide platform 10 gradually increases, so that the guide platform 10 can gradually move downward. When the guide platform 10 moves to the point where the guide groove 12 is connected with the flow groove 13, the plastic solution can flow through the guide cavity 11 to the plurality of guide grooves 12, and finally flow to the plurality of flow grooves 13, so that the plastic solution can flow out of the injection head body 2 to the outside. When the injection molding machine stops working, the pressure on the upper end of the guide table 10 gradually decreases. At this time, the guide table 10 can be pushed upward by the adjustment mechanism 14 to separate the guide groove 12 from the flow groove 13. At this time, the circulation of the plastic solution can be blocked, and finally the continuous leakage of the plastic solution can be prevented.

[0023] The adjusting mechanism 14 includes a plurality of return springs 20, a plurality of brackets 21 are connected to the lower end of the guide seat 9, an adjustment seat 22 is fixedly arranged on one side of the plurality of brackets 21, a slidable adjustment column 23 is inserted in the adjustment seat 22, and the top of the adjustment column 23 is fixedly connected to the lower end of the guide platform 10, and the plurality of return springs 20 are all located in the adjustment seat 22, and the two ends are respectively fixedly connected to the lower end of the adjustment column 23 and the inner bottom of the adjustment seat 22. When the plastic solution accumulated at the upper end of the guide platform 10 continues to increase, the pressure at the upper end of the guide platform 10 gradually increases. At this time, the guide platform 10 can drive the adjustment column 23 to move downward, so that the plurality of return springs 20 are squeezed to generate elastic force. After that, when the pressure at the upper end of the guide platform 10 gradually decreases, the guide platform 10 can be driven back to its initial position by the return action of the return spring 20.

[0024] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leak-proof injection molding head for an injection molding machine, characterized in that: The invention comprises an injection molding machine base (1) and an injection molding head body (2), wherein the injection molding machine base (1) and the injection molding head body (2) are detachably connected, a fixed ring base (3) is fixedly arranged on the inner side of the injection molding machine base (1), a plurality of connecting blocks (4) are fixedly arranged on the upper side of the injection molding head body (2), a plurality of slots (5) are opened on the upper side of the fixed ring base (3), a plurality of the slots (5) are respectively matched with a plurality of connecting blocks (4), a plurality of rotating grooves (6) are also arranged on the inner side of the fixed ring base (3), a plurality of the rotating grooves (6) are respectively connected with the lower side of the slots (5), and a plurality of connecting blocks (4) are slidably located in the rotating grooves (6), and a plurality of groups of A fixing mechanism (7), and the connecting block (4) is fixed in the rotating groove (6) by the fixing mechanism (7); a sealing mechanism (8) is arranged at the top of the injection head body (2); a flow guide seat (9) is fixedly arranged on the inner wall of the injection head body (2); a slidable flow guide platform (10) is arranged on the inner side of the flow guide seat (9); a flow guide cavity (11) is arranged at the upper end of the flow guide platform (10); a plurality of flow guide grooves (12) are arranged on the outer side of the flow guide platform (10); the plurality of flow guide grooves (12) are respectively connected with the flow guide cavity (11); a plurality of flow flow grooves (13) are arranged on the lower side of the flow guide seat (9); and an adjustment mechanism (14) is connected to the lower end of the flow guide seat (9).

2. The anti-leakage injection molding head of an injection molding machine according to claim 1, characterized in that: The fixing mechanism (7) comprises a fixing pin (15) which is passed through the outside of the injection molding machine base (1); a connecting spring (16) is passed through the fixing pin (15); and the connecting spring (16) is connected between the outer wall of the injection molding machine base (1) and the tail end of the fixing pin (15); a fixing hole (17) is provided on one side of the connecting block (4); and a fixing ring seat (3) is passed through the top end of the fixing pin (15) and is located in the fixing hole (17).

3. The anti-leakage injection molding head of an injection molding machine according to claim 2, characterized in that: The sealing mechanism (8) comprises a sealing ring (18), the top end of the injection head body (2) is connected to a plurality of connecting columns (19), and the sealing ring (18) is connected to the top ends of the plurality of connecting columns (19), and the lower side of the sealing ring (18) is in contact with the upper end of the fixed ring seat (3).

4. The anti-leakage injection molding head of an injection molding machine according to claim 3, characterized in that: The adjustment mechanism (14) comprises a plurality of return springs (20), the lower end of the guide seat (9) is connected to a plurality of brackets (21), one side of the plurality of brackets (21) is fixedly provided with an adjustment seat (22), a slidable adjustment column (23) is inserted into the adjustment seat (22), and the top end of the adjustment column (23) is fixedly connected to the lower end of the guide platform (10), and the plurality of return springs (20) are all located in the adjustment seat (22), and the two ends are respectively fixedly connected to the lower end of the adjustment column (23) and the inner bottom of the adjustment seat (22).

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