Glue injection device for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses a glue injection device for an injection molding machine, which comprises two groups of injection molding machine barrels, an extrusion machine head, an injection molding rod, a glue injection head, a mounting groove, a mounting shaft, a material guide groove, a sliding groove, a sliding piece, a connecting piece and an elastic sealing pad. The sliding part is fixedly connected and matched with the glue injection head through the connecting part, and the glue injection head can slide in the injection molding machine barrel to eject and inject the injection material under the driving ejection of an external glue injection assembly, so that the glue injection head can drive the sliding part in the sliding groove to adaptively slide through the connecting part; and the elastic sealing pad outside the connecting piece can perform adaptive deformation movement and perform sealing protection on the interior of the sliding groove, so that mutual abrasion can be avoided when the injection head slides in the injection molding machine barrel, and the effect of prolonging the service life of the injection head is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a glue injection device for injection molding machines. Background Art

[0002] The material melting process of an injection molding machine is achieved through a melt barrel assembly. A screw installed within the assembly conveys the material forward, and a heating device then melts the material. In existing injection molding machines, after the injection material enters the barrel, the screw is driven to guide the material into the melt. The injection head then presses the melt against the barrel through the injection assembly. However, when the existing injection head slides during high-pressure injection, prolonged friction between it and the barrel wall can easily cause wear, shortening its service life. Therefore, we propose a glue injection device for injection molding machines. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a glue injection device for an injection molding machine.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a glue injection device for an injection molding machine, comprising two groups of injection molding barrels and an extruder head, an injection molding rod is provided inside the injection molding barrel, a glue injection head is provided on the front side of the injection molding rod, a mounting groove is provided at one end of the glue injection head, a mounting shaft is installed at the end of the injection molding rod, the periphery of the mounting shaft is rotatably connected to the inner side of the mounting groove, a material guide groove is provided on the periphery of the glue injection head, a slide groove is provided on the inner side of the injection molding barrel, a sliding part is slidingly provided inside the slide groove, a connecting part fixedly connected to the glue injection head is installed at the bottom of the sliding part, and an elastic sealing gasket wrapped around the periphery of the connecting part is provided on the inner side of the slide groove.

[0005] Preferably, limiting grooves are provided on both sides of the interior of the sliding groove, and limiting members are installed on both sides of the sliding member corresponding to the two groups of limiting grooves.

[0006] Preferably, when the injection head slides horizontally inside the barrel of the injection molding machine, the outer periphery of the injection head is in a horizontal linkage state with the sliding member inside the slide groove through the connecting member.

[0007] Preferably, both sides of the sliding member are engaged in limited sliding with two groups of limiting grooves inside the sliding groove through limiting members.

[0008] Preferably, the elastic gasket itself has a deformation property, and when the injection head drives the connecting piece to slide horizontally, the elastic gasket outside the connecting piece is in a corresponding pulling and deformation state.

[0009] Preferably, the two groups of injection molding barrels are provided with docking pads on the corresponding sides of each other, one group of injection molding barrels is provided with a notch on the periphery, the inner side of the notch is provided with a screw groove running through the other group of injection molding barrels, and the internal thread of the screw groove is connected with a bolt.

[0010] The utility model provides a glue injection device for an injection molding machine, which has the following beneficial effects:

[0011] 1. A glue injection device for an injection molding machine. In this article, a sliding member with sliding control is provided in a chute on the inner side of the injection molding barrel, and the sliding member and the injection head are fixedly connected and matched by a connecting member. When the injection head is driven and pressed by an external injection assembly, the injection head can slide inside the injection molding barrel to press the injection plastic. At this time, the injection head can drive the sliding member inside the chute to slide accordingly through the connecting member, and the elastic gasket outside the connecting member can deform accordingly and seal the inside of the chute. At this time, the injection head and the inside of the injection molding barrel can avoid mutual wear when sliding, thereby achieving the effect of extending the service life of the injection head.

[0012] 2. The injection device of the injection molding machine has two sets of injection molding barrels that are assembled together. When the injection molding barrels are in use, the two sets of injection molding barrels are butted against each other through the butt pads. Then, the bolts can be threadedly connected with the screw grooves inside the two sets of injection molding barrels. The same is true when disassembling, thereby facilitating the subsequent disassembly, cleaning, and use of the two sets of injection molding barrels. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1A magnified view of middle A;

[0017] Figure 3 It is a partial schematic diagram of the bolt of the utility model.

[0018] Legend:

[0019] 1. Injection molding barrel; 2. Extruder head; 3. Injection molding rod; 4. Injection head; 5. Mounting slot; 6. Mounting shaft; 7. Material guide trough; 8. Slide; 9. Sliding part; 10. Connecting part; 11. Elastic seal; 12. Limiting groove; 13. Limiting part; 14. Docking pad; 15. Notch; 16. Screw groove; 17. Bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0021] Example 1: A glue injection device for an injection molding machine, such as Figure 1 、 Figure 2 As shown, it includes two groups of injection molding barrels 1 and extruder heads 2, an injection molding rod 3 is provided inside the injection molding barrel 1, a glue injection head 4 is provided on the front side of the injection molding rod 3, a mounting groove 5 is provided at one end of the glue injection head 4, a mounting shaft 6 is installed at the end of the injection molding rod 3, the outer periphery of the mounting shaft 6 is rotatably connected with the inner side of the mounting groove 5, a material guide groove 7 is provided on the outer periphery of the glue injection head 4, a slide groove 8 is provided on the inner side of the injection molding barrel 1, a sliding member 9 is provided for sliding inside the slide groove 8, a connecting member 10 fixedly connected to the glue injection head 4 is installed at the bottom of the sliding member 9, and an elastic sealing gasket 11 wrapped around the outer periphery of the connecting member 10 is provided on the inner side of the slide groove 8.

[0022] Furthermore, limiting grooves 12 are provided on both sides of the sliding groove 8 , and limiting members 13 are installed on both sides of the sliding member 9 corresponding to the two groups of limiting grooves 12 .

[0023] Furthermore, when the injection head 4 slides horizontally inside the injection molding machine barrel 1 , the outer periphery of the injection head 4 is in a horizontal linkage state with the sliding member 9 inside the chute 8 through the connecting member 10 .

[0024] Furthermore, both sides of the sliding member 9 are engaged in limited sliding with the two groups of limiting grooves 12 inside the sliding groove 8 through limiting members 13 .

[0025] Furthermore, the elastic gasket 11 itself has a deformation property. When the injection head 4 drives the connecting member 10 to slide horizontally, the elastic gasket 11 outside the connecting member 10 is in a corresponding pulling and deformation state.

[0026] Example 2: A glue injection device for an injection molding machine, such as Figure 1 、 Figure 3 As shown, it includes two groups of injection molding barrels 1 and extruder heads 2, an injection molding rod 3 is provided inside the injection molding barrel 1, a glue injection head 4 is provided on the front side of the injection molding rod 3, a mounting groove 5 is provided at one end of the glue injection head 4, a mounting shaft 6 is installed at the end of the injection molding rod 3, the outer periphery of the mounting shaft 6 is rotatably connected with the inner side of the mounting groove 5, a material guide groove 7 is provided on the outer periphery of the glue injection head 4, a slide groove 8 is provided on the inner side of the injection molding barrel 1, a sliding member 9 is provided for sliding inside the slide groove 8, a connecting member 10 fixedly connected to the glue injection head 4 is installed at the bottom of the sliding member 9, and an elastic sealing gasket 11 wrapped around the outer periphery of the connecting member 10 is provided on the inner side of the slide groove 8.

[0027] Furthermore, limit grooves 12 are provided on both sides of the corresponding inner portion of the chute 8, and limit members 13 are installed on both sides of the sliding member 9 corresponding to the two groups of limit grooves 12. When the injection head 4 slides horizontally inside the injection molding barrel 1, the outer periphery of the injection head 4 is in a horizontal linkage state with the sliding member 9 inside the chute 8 through the connecting member 10. Both sides of the sliding member 9 are limited and slidably matched with the two groups of limit grooves 12 inside the chute 8 through the limit members 13. The elastic gasket 11 itself has deformation characteristics. When the injection head 4 drives the connecting member 10 to slide horizontally, the elastic gasket 11 outside the connecting member 10 is in a corresponding pulling and deformation state.

[0028] Furthermore, a docking pad 14 is provided on the corresponding side of the two groups of injection molding barrels 1, and a notch 15 is provided on the outer periphery of one group of injection molding barrels 1, and a screw groove 16 is provided inside the notch 15 to pass through the other group of injection molding barrels 1, and a bolt 17 is connected to the internal thread of the screw groove 16.

[0029] The working principle of this utility model:

[0030] The inner side of the injection molding machine barrel 1 is provided with a sliding member 9 for sliding control in the chute 8, and the sliding member 9 is fixedly connected to the injection head 4 through a connecting member 10. When the injection head 4 is driven and pressed by an external injection assembly, the injection head 4 can slide inside the injection molding machine barrel 1 to press the injection plastic. At this time, the injection head 4 can drive the sliding member 9 inside the chute 8 to slide accordingly through the connecting member 10, and the elastic sealing gasket 11 outside the connecting member 10 can be deformed accordingly and adjust the chute. 8 is sealed and protected inside, and at this time, the injection head 4 and the injection molding barrel 1 can avoid mutual wear when sliding inside, thereby extending the service life of the injection head 4. The two groups of injection molding barrels 1 are assembled together. When the injection molding barrel 1 is in use, the two groups of injection molding barrels 1 are docked with each other through the docking pad 14. At this time, the bolts 17 can be threadedly connected with the screw grooves 16 inside the two groups of injection molding barrels 1. The same is true when disassembling, so as to facilitate the subsequent disassembly and cleaning of the two groups of injection molding barrels 1.

[0031] The above shows and describes 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 above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A glue injection device for an injection molding machine, comprising two sets of injection molding barrels (1) and extruder heads (2), characterized in that: An injection molding rod (3) is provided inside the injection molding machine barrel (1), and a glue injection head (4) is provided on the front side of the injection molding rod (3). A mounting groove (5) is provided at one end of the glue injection head (4). A mounting shaft (6) is provided at the end of the injection molding rod (3). The periphery of the mounting shaft (6) is rotatably connected to the inner side of the mounting groove (5). A material guide groove (7) is provided on the periphery of the glue injection head (4). A slide groove (8) is provided on the inner side of the injection molding machine barrel (1). A sliding member (9) is provided inside the slide groove (8) for sliding. A connecting member (10) fixedly connected to the glue injection head (4) is installed at the bottom of the sliding member (9). An elastic sealing gasket (11) wrapped around the outer periphery of the connecting member (10) is provided on the inner side of the slide groove (8).

2. The injection molding device for an injection molding machine according to claim 1, characterized in that: The interior of the sliding groove (8) is provided with limiting grooves (12) on both sides thereof, and the sliding member (9) is provided with limiting members (13) on both sides thereof corresponding to the two groups of limiting grooves (12).

3. The injection molding device for an injection molding machine according to claim 1, characterized in that: When the injection head (4) is located inside the injection molding machine barrel (1) and slides horizontally, the outer periphery of the injection head (4) is in a horizontal linkage state with the sliding member (9) inside the slide groove (8) through the connecting member (10).

4. The injection molding device for an injection molding machine according to claim 3, characterized in that: Both sides of the sliding member (9) are in limited sliding cooperation with the two groups of limiting grooves (12) inside the sliding groove (8) through limiting members (13).

5. The injection molding device for an injection molding machine according to claim 3, characterized in that: The elastic seal (11) itself has a deformation characteristic. When the injection head (4) drives the connecting piece (10) to slide horizontally, the elastic seal (11) outside the connecting piece (10) is in a corresponding pulling deformation state.

6. The injection molding device for an injection molding machine according to claim 1, characterized in that: A docking pad (14) is provided on one side of the two groups of injection molding barrels (1) corresponding to each other, and a notch (15) is provided on the periphery of one group of injection molding barrels (1), and a screw groove (16) is provided inside the notch (15) and passes through the other group of injection molding barrels (1), and a bolt (17) is connected to the internal thread of the screw groove (16).

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