Injection nozzle assembly of injection molding machine

Abstract

The utility model provides an injection nozzle assembly of an injection molding machine. Relates to the technical field of injection accessories. The injection nozzle assembly of the injection molding machine comprises an injection head, an adapter column and a screwing sleeve, the injection head is in contact with the adapter column, the side, away from the injection head, of the adapter column is fixedly connected with the screwing sleeve, an insertion hole is formed in the adapter column, a connecting sleeve is arranged in the insertion hole, and the screwing sleeve is fixedly connected with the adapter column. One end of the connecting sleeve is fixedly connected with the injection head, a material through hole is formed in the side, away from the injection head, of the transfer column, the material through hole communicates with the interiors of the inserting hole and the screwing sleeve, an installing ring is arranged in the inserting hole, one side of the installing ring makes contact with the inner wall of one side of the inserting hole, and the other side of the installing ring makes contact with the inner wall of the other side of the inserting hole. The other side of the mounting ring is in contact with the connecting sleeve, and a filter disc is fixedly mounted in the mounting ring. The plastic filter has the advantages that molten plastic can be filtered, and the filter element is convenient to disassemble and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding accessory technical field especially, relates to a kind of injection nozzle assemblies of injection molding machine. BACKGROUND

[0002] The injection nozzle on injection molding machine is the key component of injection molding machine injection part, for molten plastic is injected into mold cavity.

[0003] At present, the injection nozzle is found when using, because small part of impurity is contained in molten plastic, these impurities can directly affect the quality of finished product, and traditional injection nozzle does not contain filter component inside, thereby reduce the production quality of finished product, and, common injection nozzle is mostly integrated, it is difficult to set filter element inside.

[0004] Therefore, it is necessary to provide a new injection nozzle assembly of injection molding machine to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of injection nozzle assembly of injection molding machine, which can filter molten plastic and facilitate the replacement of filter element.

[0006] To solve the above technical problems, the injection nozzle assembly of the injection molding machine provided by the utility model comprises: an injection head, an adapter column and a threaded sleeve, the injection head is in contact with the adapter column, the side of the adapter column away from the injection head is fixedly connected with the threaded sleeve, a mounting hole is formed in the adapter column, an adapter sleeve is arranged in the mounting hole, one end of the adapter sleeve is fixedly connected with the injection head, a material passage is formed in the side of the adapter column away from the injection head, the material passage is in communication with the inside of the mounting hole and the threaded sleeve, an installation ring is arranged in the mounting hole, one side of the installation ring is in contact with the inner wall of one side of the mounting hole, and the other side is in contact with the adapter sleeve, a filter disc is fixedly installed in the installation ring, an internal thread ring groove is formed in the side of the adapter sleeve away from the injection head, an external thread ring sleeve is screw-mounted in the internal thread ring groove, one side of the external thread ring sleeve is fixedly connected with the installation ring, two side insertion grooves are formed in the side of the adapter column in contact with the injection head, plug-in connectors are inserted into the two side insertion grooves, and the same side of the two plug-in connectors is fixedly connected with the injection head.

[0007] Preferably, two said plug-in connectors are provided with positioning counterbores on the sides away from each other, two hollow frame sleeves are fixedly installed on the outer wall of the adapter column, two vertical columns are fixedly installed in the two hollow frame sleeves, two connecting strips are slidably installed on the two vertical columns, two positioning plugs are fixedly installed on the sides close to each other of the two connecting strips, the two ends close to each other of the two positioning plugs extend into the two positioning counterbores respectively, and the two positioning plugs are slidably connected with the adapter column, two wedge-shaped blocks are fixedly installed on the sides of the two connecting strips away from the injection head, a fixing ring is fixedly sleeved on the adapter column, a horizontal screw rod is rotatably installed on one side of the fixing ring, a movable ring is movably sleeved on the adapter column, the horizontal screw rod penetrates through the movable ring and is threadedly connected with the movable ring, and two wedge-shaped abutting strips are fixedly installed on the side of the movable ring close to the injection head and abut against the two wedge-shaped blocks respectively.

[0008] Preferably, two springs are sleeved on the two vertical columns, the two ends close to each other of the two springs are fixedly connected with the two connecting strips respectively, and the two ends away from each other of the two springs are fixedly connected with the inner walls of the two sides of the two hollow frame sleeves away from each other.

[0009] Preferably, two guide sliding rods are fixedly installed on the side of the fixing ring close to the movable ring, and the two guide sliding rods penetrate through the movable ring and are slidably connected with the movable ring.

[0010] Preferably, two sliding holes are formed in the adapter column, the two sliding holes are communicated with the two side insertion grooves respectively, and the two positioning plugs penetrate through the two sliding holes and are in contact with the inner walls of the corresponding sliding holes.

[0011] Preferably, the inner diameter of the connecting sleeve is greater than the inner diameter of the injection head, the inner diameter of the mounting ring is greater than the inner diameter of the connecting sleeve, the hole diameter of the material through hole is greater than the inner diameter of the mounting ring, and the hole diameter of the material through hole is the same as the inner diameter of the screw sleeve.

[0012] Compared with the related art, the injection nozzle assembly of the injection molding machine has the following beneficial effects:

[0013] The injection nozzle assembly of the injection molding machine is provided with the connecting sleeve in the insertion hole, so that the injection head and the adapter column are in a detachable state, and during the injection molding process, the filter on the mounting ring can filter the molten plastic, thereby filtering out impurities and improving the workmanship quality of the injection molding product. In addition, the injection head and the adapter column can be quickly detached by rotating the horizontal screw rod, which facilitates the replacement or cleaning of the filter, is simple in steps, and is convenient for the staff to operate and use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A preferred embodiment structure schematic view of the injection nozzle assembly of the injection molding machine provided by the utility model;

[0015] Figure 2 A top view structure schematic view of the utility model;

[0016] Figure 3 A split state schematic view of the adapter column and the adapter sleeve in the utility model;

[0017] Figure 4 An assembly schematic view of the adapter sleeve and the mounting ring in the utility model;

[0018] Figure 5 A split state schematic view of the adapter sleeve and the mounting ring in the utility model;

[0019] Figure 6 A sectional view structure schematic view of the utility model;

[0020] Figure 7 A Figure 6 Enlarged structure schematic view of part A shown in the figure.

[0021] Marked number in the figure: 1, injection head; 2, adapter column; 3, adapter sleeve; 4, insertion hole; 5, material hole; 6, adapter sleeve; 7, mounting ring; 8, filter disc; 9, internal thread ring groove; 10, external thread ring sleeve; 11, side insertion slot; 12, insertion head; 13, positioning counterbore; 14, hollow frame sleeve; 15, stand column; 16, adapter strip; 17, positioning plug; 18, wedge-shaped block; 19, fixing ring; 20, transverse screw rod; 21, movable ring; 22, wedge-shaped resistance strip. Specific implementation

[0022] The utility model will be further explained in combination with the drawings and implementation.

[0023] Please refer to Figures 1-7The injection nozzle assembly of the injection molding machine comprises an injection head 1, an adapter column 2 and a screwing sleeve 3, wherein the injection head 1 is in contact with the adapter column 2, the adapter column 2 is fixedly connected with the screwing sleeve 3 at the side away from the injection head 1, an insertion hole 4 is formed in the adapter column 2, an adapter sleeve 6 is arranged in the insertion hole 4, one end of the adapter sleeve 6 is fixedly connected with the injection head 1, so that the injection head 1 and the adapter column 2 can be separated, a material passage 5 is formed in the adapter column 2 at the side away from the injection head 1, the material passage 5 is in communication with the inside of the insertion hole 4 and the screwing sleeve 3, an installation ring 7 is arranged in the insertion hole 4, one side of the installation ring 7 is in contact with the inner wall of the insertion hole 4, the other side of the installation ring 7 is in contact with the adapter sleeve 6, a filter 8 is fixedly installed in the installation ring 7, in order to facilitate the disassembly and assembly of the installation ring 7, an internal thread ring groove 9 is formed in the adapter sleeve 6 at the side away from the injection head 1, an external thread ring sleeve 10 is screwedly installed in the internal thread ring groove 9, one side of the external thread ring sleeve 10 is fixedly connected with the installation ring 7, in order to pull out the adapter sleeve 6 from the insertion hole 4, two side insertion grooves 11 are formed in the adapter column 2 at the side in contact with the injection head 1, two plug-in heads 12 are inserted into the two side insertion grooves 11, and the same side of the two plug-in heads 12 is fixedly connected with the injection head 1.

[0024] In the above manner, in order to stably fix the plug-in head 12 in the side insertion groove 11, a positioning counterbore 13 is formed in the side away from each other of the two plug-in heads 12, two hollow frame sleeves 14 are fixedly installed on the outer wall of the adapter column 2, two vertical columns 15 are fixedly installed in the two hollow frame sleeves 14, two adapter strips 16 are slidingly installed on the two vertical columns 15, springs are sleeved on the two vertical columns 15, one end of each of the two springs is fixedly connected with the corresponding adapter strip 16, the other end of each of the two springs is fixedly connected with the inner wall of the side of the corresponding hollow frame sleeve 14 away from each other, a positioning plug 17 is fixedly installed on the side of each of the two adapter strips 16 away from each other, the end of each of the two positioning plugs 17 away from each other extends into the corresponding positioning counterbore 13, so as to form a plug-in state and fix the plug-in head 12, and each of the two positioning plugs 17 is slidingly connected with the adapter column 2, a wedge-shaped block 18 is fixedly installed on the side of each of the two adapter strips 16 away from the injection head 1, a fixing ring 19 is fixedly sleeved on the adapter column 2, a transverse screw rod 20 is rotatably installed on one side of the fixing ring 19, an activity ring 21 is movably sleeved on the adapter column 2, the transverse screw rod 20 penetrates through the activity ring 21 and is screwedly connected with the activity ring 21, two guide sliding rods are fixedly installed on the side of the fixing ring 19 close to the activity ring 21, the two guide sliding rods penetrate through the activity ring 21 and are slidingly connected with the activity ring 21, so as to limit the activity ring 21 to move linearly when the transverse screw rod 20 rotates, two wedge-shaped abutting strips 22 are fixedly installed on the side of the activity ring 21 close to the injection head 1, and the two wedge-shaped abutting strips 22 abut against the two wedge-shaped blocks 18 respectively.

[0025] In the mode, in order to make the stable sliding relationship between the positioning plug 17 and the adapter column 2, two sliding holes are formed on the adapter column 2, the two sliding holes are communicated with the two side insertion slots 11 respectively, and the two positioning plugs 17 respectively penetrate the two sliding holes and are in contact with the inner walls of the corresponding sliding holes.

[0026] In the mode, in order to make the molten plastic smoothly enter the injection head 1, the inner diameter of the above-mentioned connecting sleeve 6 is greater than the inner diameter of the injection head 1, the inner diameter of the mounting ring 7 is greater than the inner diameter of the connecting sleeve 6, the hole diameter of the material passage hole 5 is greater than the inner diameter of the mounting ring 7, and the hole diameter of the material passage hole 5 is the same as the inner diameter of the screw sleeve 3.

[0027] The working principle of the injection nozzle assembly of the injection molding machine is as follows:

[0028] In the initial state, the two springs are in a stretched state;

[0029] When the injection is carried out, the molten plastic enters the material passage hole 5 through the screw sleeve 3, then is filtered by the filter disc 8, and finally is injected into a mold through the injection head 1, so that the injection molding work is formed;

[0030] When the filter disc 8 needs to be removed for cleaning or replacement in the later period, the horizontal screw rod 20 is first rotated counterclockwise, the movable ring 21 moves away from the wedge-shaped block 18 with the two wedge-shaped abutting strips 22, at this time, with the wedge-shaped abutting strips 22 moving away, the stretched springs gradually retract, so that the two abutting strips 16 move away from each other, and finally the two positioning plugs 17 are taken out of the corresponding positioning counterbores 13, at this time, the plug-in head 12 loses the clamping of the external object, then the injection head 1 is directly taken out together with the connecting sleeve 6 and the mounting ring 7, after that, the mounting ring 7 is screwed, the external thread ring sleeve 10 is screwed out of the internal thread ring groove 9, and the mounting ring 7 can be separately removed and replaced, or the filter disc 8 on the mounting ring 7 can be cleaned;

[0031] Then, the new mounting ring 7 or the mounting ring 7 with the cleaned filter disc 8 is screwed into the internal thread ring groove 9, then the connecting sleeve 6 is inserted into the mounting hole 4, and the two plug-in heads 12 are inserted into the corresponding side insertion slots 11, and then the horizontal screw rod 20 is rotated clockwise, the movable ring 21 moves towards the wedge-shaped block 18 with the wedge-shaped abutting strips 22, when the wedge-shaped abutting strips 22 abut against the wedge-shaped block 18, the two wedge-shaped blocks 18 abut against each other through the abutment between the wedge-shaped forms, so that the two positioning plugs 17 abut against each other, and finally the positioning plug 17 is inserted into the corresponding positioning counterbore 13, so that the injection head 1 can be reinstalled, and then the injection molding can be continued.

[0032] Compared with the related art, the injection nozzle assembly of the injection molding machine has the following beneficial effects:

[0033] The utility model provides a kind of injection nozzle assembly of injection molding machine, by setting up link sleeve 6 in insertion hole 4, so that injection head 1 and adapter column 2 are in detachable state, and, in injection process, filter 8 on mounting ring 7 can be used to filter molten plastic, so as to remove impurities, improve the work quality of injection product, in addition, by the mode of rotating transverse screw rod 20, injection head 1 and adapter column 2 can be quickly detached, filter 8 is replaced or cleaned, and the steps are simple, convenient for staff operation and use.

[0034] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An injection nozzle assembly for an injection molding machine comprising an injection head, an adapter stem and a swivel sleeve, characterized in that, The injection head is in contact with the adapter column, one side of the adapter column away from the injection head is fixedly connected with the threaded sleeve, the adapter column is provided with an insertion hole, the insertion hole is provided with a connecting sleeve, one end of the connecting sleeve is fixedly connected with the injection head, one side of the adapter column away from the injection head is provided with a material passage, the material passage is in communication with the inside of the insertion hole and the threaded sleeve, the insertion hole is provided with a mounting ring, one side of the mounting ring is in contact with the inner wall of one side of the insertion hole, and the other side is in contact with the connecting sleeve, the mounting ring is fixedly installed with a filter disc, one side of the connecting sleeve away from the injection head is provided with an internal thread ring groove, an external thread ring sleeve is screwed into the internal thread ring groove, one side of the external thread ring sleeve is fixedly connected with the mounting ring, one side of the adapter column in contact with the injection head is provided with two side insertion grooves, two insertion heads are inserted into the two side insertion grooves, and the same side of the two insertion heads is fixedly connected with the injection head.

2. The injection nozzle assembly of the injection molding machine of claim 1, wherein, The other side of the two insertion heads away from each other is provided with a positioning counterbore, two hollow frame sleeves are fixedly installed on the outer wall of the adapter column, two vertical columns are fixedly installed in the two hollow frame sleeves, two connecting strips are slidingly installed on the two vertical columns, two positioning plugs are fixedly installed on the side of the two connecting strips close to each other, the ends of the two positioning plugs close to each other extend into the two positioning counterbores respectively, and the two positioning plugs are slidingly connected with the adapter column, the other side of the two connecting strips away from the injection head is fixedly installed with a wedge-shaped block, a fixed ring is fixedly sleeved on the adapter column, a horizontal screw rod is rotatably installed on one side of the fixed ring, a movable ring is movably sleeved on the adapter column, the horizontal screw rod penetrates through the movable ring and is screwedly connected with the movable ring, two wedge-shaped abutting strips are fixedly installed on the side of the movable ring close to the injection head, and the two wedge-shaped abutting strips abut against the two wedge-shaped blocks respectively.

3. The injection nozzle assembly of the injection molding machine of claim 2, wherein, Two springs are sleeved on the two vertical columns, one end of each of the two springs close to each other is fixedly connected with the two connecting strips, and the other end of each of the two springs away from each other is fixedly connected with the inner wall of the side of the two hollow frame sleeves away from each other.

4. The injection nozzle assembly of claim 2 wherein, The other side of the fixed ring close to the movable ring is fixedly installed with two guide sliding rods, the two guide sliding rods penetrate through the movable ring and are slidingly connected with the movable ring.

5. The injection nozzle assembly of claim 2 wherein, The adapter column is provided with two sliding holes, the two sliding holes are in communication with the two side insertion grooves respectively, and the two positioning plugs penetrate through the two sliding holes and are in contact with the inner walls of the corresponding sliding holes.

6. The injection nozzle assembly of claim 1 wherein, The inner diameter of the connecting sleeve is greater than the inner diameter of the injection head, the inner diameter of the mounting ring is greater than the inner diameter of the connecting sleeve, the diameter of the material passage is greater than the inner diameter of the mounting ring, and the diameter of the material passage is the same as the inner diameter of the threaded sleeve.

Images