An embedded ejector device for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and proposes an embedded ejection device for an injection molding machine, comprising: a locking machine hinge, an ejector oil cylinder arranged on the inner side of the locking machine hinge and a middle plate installed on the locking machine hinge, a mounting cavity provided at the center of one side of the middle plate, an ejector right cover embedded in the mounting cavity, a fixed cavity provided at the center of one side of the ejector right cover, one end of the ejector oil cylinder embedded in the inner side of the fixed cavity, and an ejector left cover sleeved and installed on the other end of the ejector oil cylinder, through the fixed cavity on one side of the ejector right cover, the ejector oil cylinder can be installed in an embedded manner inside, thereby avoiding the distance limitation of the locking machine hinge when it is contracted, and can effectively increase the ejection stroke, and does not need to replace a large number of accessories, which can reduce more costs, and through the mounting cavity, the ejector right cover can be installed in an embedded manner on the middle plate, thereby achieving the effect of increasing the ejection stroke.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an embedded ejection device for an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, 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.

[0003] Different injection molding products require different ejector strokes. However, in order to reduce costs, the gap between the clamping machine hinge and the left cover of the ejector pin will not be too large when the mold is retracted. Therefore, the ejector stroke is limited by this. At present, the injection molding machine needs to increase the ejector stroke, which generally requires changing a large number of mechanical parts, which makes the operation complicated and increases costs. Utility Model Content

[0004] The utility model provides an embedded ejector device for an injection molding machine, which solves the problem in the related art that the clearance between the mold locking hinge and the left cover of the ejector pin is not too large when the mold locking hinge is contracted, so the ejection stroke is limited thereby, and the ejection stroke needs to be increased, generally a large number of mechanical parts need to be changed, the operation is complicated and the cost is increased.

[0005] The technical solution of the utility model is as follows: an embedded ejector device for an injection molding machine, comprising: a clamping machine hinge, an ejector cylinder arranged inside the clamping machine hinge, and a middle plate installed on the clamping machine hinge;

[0006] A mounting cavity is provided at the center of one side of the middle plate;

[0007] A right ejector cover embedded in the installation cavity;

[0008] A fixing cavity is provided at the center of one side of the right cover of the ejector pin, and one end of the ejector pin oil cylinder is embedded and installed inside the fixing cavity;

[0009] And a left ejector cover is sleeved and installed on the other end of the ejector oil cylinder.

[0010] Preferably, threaded holes are provided on the middle plate and the right cover of the ejector pin, and the middle plate and the right cover of the ejector pin are fastened and fixed by screws through the threaded holes.

[0011] Preferably, the outer side wall of the ejector cylinder is provided with two pairs of arc-shaped plates, and a plurality of protective plates are fixedly mounted on the outer side walls of the two pairs of arc-shaped plates, and the two pairs of arc-shaped plates are arranged opposite to each other.

[0012] Preferably, a plurality of cooling mechanisms are sequentially arranged in a circular array on the outer side wall of the ejector cylinder, and the plurality of cooling mechanisms are respectively fixedly mounted on the plurality of protective plates.

[0013] Preferably, the cooling mechanism includes a U-shaped frame fixedly mounted on the protective plate, a heat sink is installed through the U-shaped frame, and one side of the heat sink is in contact with the ejector cylinder, a cooling pipe is fixedly mounted on the inner wall of the U-shaped frame, a coolant is provided inside the cooling pipe, and the outer wall of the cooling pipe is in contact with the other side of the heat sink.

[0014] Preferably, two mounting hoops are fixedly mounted on the outer side wall of the ejector cylinder, and the arc-shaped plate is fixedly mounted on the mounting hoops.

[0015] Preferably, the mounting hoop and the arc plate are both provided with screw holes, and the arc plate is fixed to the mounting hoop through the screw holes and fastened with bolts.

[0016] Preferably, heat dissipation holes are provided on the plurality of protective plates.

[0017] The working principle and beneficial effects of the utility model are:

[0018] Through the fixed cavity on the right side of the ejector cover, the ejector cylinder can be installed inside in an embedded manner, thereby avoiding the distance limitation of the clamping machine hinge when it shrinks, effectively increasing the ejection stroke, and eliminating the need to replace a large number of accessories, which can reduce more costs.

[0019] The right cover of the ejector pin can be installed on the middle plate in an embedded manner through the installation cavity, thereby achieving the effect of increasing the ejection stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the protective plate proposed in the utility model;

[0023] Figure 3 The utility model provides a three-dimensional structural schematic diagram of the ejector cylinder;

[0024] Figure 4 This is a three-dimensional structural schematic diagram of the arc plate proposed in the utility model;

[0025] Figure 5 This is a three-dimensional structural schematic diagram of the cooling mechanism proposed in the utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the installation hoop proposed in the utility model;

[0027] Figure 7 The utility model provides a schematic diagram of the sectional three-dimensional structure of the ejector cylinder.

[0028] In the figure: 1. Clamping machine hinge; 2. Ejector cylinder; 3. Ejector left cover; 4. Ejector right cover; 5. Middle plate; 6. Curved plate; 7. Protective plate;

[0029] Cooling mechanism; 81, U-shaped frame; 82, heat sink; 83, cooling pipe;

[0030] 9. Install the clamp; 10. Screw hole; 11. Heat dissipation hole. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] See also Figure 1 - Figure 7 , an embedded ejector device for an injection molding machine, comprising: a clamping machine hinge 1, an ejector cylinder 2 arranged inside the clamping machine hinge 1, and a middle plate 5 installed on the clamping machine hinge 1;

[0034] A mounting cavity is provided at the center of one side of the middle plate 5;

[0035] A right ejector cover 4 embedded in the installation cavity;

[0036] A fixing cavity is provided at the center of one side of the ejector right cover 4, and one end of the ejector oil cylinder 2 is embedded in the inner side of the fixing cavity;

[0037] And a left ejector cover 3 is sleeved and installed on the other end of the ejector oil cylinder 2.

[0038] The utility model provides an embedded ejector device for an injection molding machine. When in use, the ejector cylinder 2 is installed in a fixed cavity on the ejector right cover 4 in an embedded manner, which can avoid the distance limitation of the clamping machine hinge 1 when it is contracted, can effectively increase the ejection stroke, and does not need to replace a large number of accessories, which can reduce more costs. Then, through the installation cavity, the ejector right cover 4 can be installed in an embedded manner on the middle plate 5, thereby achieving the effect of increasing the ejection stroke.

[0039] Furthermore, threaded holes are provided on the middle plate 5 and the ejector right cover 4 , and the middle plate 5 and the ejector right cover 4 are fastened and fixed by screws through the threaded holes.

[0040] Specifically, when the ejector right cover 4 is embedded into the installation cavity on the middle plate 5 , the ejector right cover 4 is connected to the threaded hole on the middle plate 5 , and then the screw is manually screwed into the threaded hole, so that the ejector right cover 4 can be fixedly installed on the middle plate 5 .

[0041] Embodiment 2

[0042] Based on the first embodiment, in this embodiment: two pairs of arc plates 6 are provided on the outer wall of the ejector cylinder 2, and multiple protective plates 7 are fixedly installed on the outer walls of the two pairs of arc plates 6, and the two pairs of arc plates 6 are arranged opposite to each other, and heat dissipation holes 11 are opened on the multiple protective plates 7.

[0043] The technical solution provided by this embodiment is: when in use, the protection effect of the ejector cylinder 2 can be enhanced through the multiple protection plates 7 on the outer side of the arc plate 6. At the same time, the heat dissipation of the ejector cylinder 2 can be ensured through the heat dissipation holes 11 on the protection plates 7.

[0044] Furthermore, two mounting hoops 9 are fixedly mounted on the outer side wall of the ejector cylinder 2 , and the arc plate 6 is fixedly mounted on the mounting hoops 9 .

[0045] Specifically, by installing the clamp 9 , the arc plate 6 and the protection plate 7 can be fixed on the outer wall of the ejector cylinder 2 and protect the ejector cylinder 2 .

[0046] Furthermore, screw holes 10 are provided on the mounting hoop 9 and the arc plate 6 , and the arc plate 6 is fixed to the mounting hoop 9 by means of the screw holes 10 and by means of bolts.

[0047] Specifically, the arc plate 6 on the mounting hoop 9 can be disassembled and assembled through the screw holes 10 and the bolts, so that when the damaged arc plate 6 and the protective plate 7 are disassembled and replaced, the mounting hoop 9 can be reused.

[0048] Embodiment 3

[0049] Based on the first and second embodiments, in this embodiment: a plurality of cooling mechanisms 8 are sequentially arranged in a circular array on the outer wall of the ejector cylinder 2, and the plurality of cooling mechanisms 8 are respectively fixedly mounted on the plurality of protective plates 7, the cooling mechanism 8 comprises a U-shaped frame 81 fixedly mounted on the protective plate 7, a heat sink 82 is penetrated and mounted on the U-shaped frame 81, and one side of the heat sink 82 is in contact with the ejector cylinder 2, a cooling pipe 83 is fixedly mounted on the inner wall of the U-shaped frame 81, a coolant is arranged inside the cooling pipe 83, and the outer wall of the cooling pipe 83 is in contact with the other side of the heat sink 82.

[0050] The technical solution provided by this embodiment is as follows: when in use, the heat sink 82 installed on the U-shaped frame 81 can dissipate heat for the ejector cylinder 2. At the same time, the heat transferred between the heat sink 82 and the heat sink 82 can be cooled down by the cooling pipe 83 and the coolant inside the cooling pipe 83, thereby making the overall heat dissipation effect of the ejector cylinder 2 stronger.

[0051] The above are only preferred 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. An embedded ejector device for an injection molding machine, characterized in that: include: A clamping machine hinge (1), an ejector cylinder (2) arranged inside the clamping machine hinge (1), and a middle plate (5) mounted on the clamping machine hinge (1); A mounting cavity is provided at the center of one side of the middle plate (5); A right ejector cover (4) embedded in the installation cavity; A fixing cavity is provided at the center of one side of the ejector right cover (4), and one end of the ejector oil cylinder (2) is embedded and installed inside the fixing cavity; And a left ejector cover (3) sleeved and mounted on the other end of the ejector cylinder (2).

2. The built-in ejector device of an injection molding machine according to claim 1, characterized in that: The middle plate (5) and the ejector right cover (4) are both provided with threaded holes, and the middle plate (5) and the ejector right cover (4) are fastened and fixed by screws through the threaded holes.

3. The built-in ejector device of an injection molding machine according to claim 1, characterized in that: Two pairs of arc-shaped plates (6) are arranged on the outer side wall of the ejector cylinder (2), a plurality of protective plates (7) are fixedly mounted on the outer side walls of the two pairs of arc-shaped plates (6), and the two pairs of arc-shaped plates (6) are arranged opposite to each other.

4. The built-in ejector device of an injection molding machine according to claim 3, characterized in that: A plurality of cooling mechanisms (8) are sequentially arranged in a circular array on the outer side wall of the ejector cylinder (2), and the plurality of cooling mechanisms (8) are respectively fixedly mounted on the plurality of protection plates (7).

5. The built-in ejector device of an injection molding machine according to claim 4, characterized in that: The cooling mechanism (8) comprises a U-shaped frame (81) fixedly mounted on the protective plate (7), a heat sink (82) being installed through the U-shaped frame (81), and one side of the heat sink (82) is in contact with the ejector cylinder (2), a cooling pipe (83) is fixedly mounted on the inner wall of the U-shaped frame (81), a coolant is provided inside the cooling pipe (83), and an outer wall of the cooling pipe (83) is in contact with the other side of the heat sink (82).

6. The built-in ejector device of an injection molding machine according to claim 3, characterized in that: Two mounting hoops (9) are fixedly mounted on the outer side wall of the ejector cylinder (2), and the arc-shaped plate (6) is fixedly mounted on the mounting hoops (9).

7. The built-in ejector device of an injection molding machine according to claim 6, characterized in that: The mounting hoop (9) and the arc-shaped plate (6) are both provided with screw holes (10), and the arc-shaped plate (6) is fixed to the mounting hoop (9) by means of the screw holes (10) and by means of bolts.

8. The built-in ejector device for an injection molding machine according to claim 7, characterized in that: Heat dissipation holes (11) are provided on the plurality of protection plates (7).

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