CN219381438U - Epoxy annotates material device - Google Patents

Abstract

The utility model discloses an epoxy resin injection device, which comprises: the material injection part comprises a material injection nozzle, and the material injection nozzle is arranged relative to a material injection opening of a to-be-injected mold; the feeding piece is arranged at the rear end of the material injection piece and drives the material injection piece to push in and retract so as to enable the material injection nozzle to be connected with and separated from the material injection opening; and one end of the fixing piece is connected with the feeding piece, and the other end of the fixing piece is connected with the to-be-injected die. According to the utility model, under the condition that the material injection nozzle is blocked, the feeding part is retracted to disconnect the connection between the material injection part and the die, the connecting plug and the sealing block are detached, the solidified material in the flow passage of the material injection nozzle can be knocked out by the chisel at normal temperature, the material injection nozzle can be directly calcined at high temperature, the maintenance and the cleaning are convenient, and meanwhile, other consumable products are not wasted. In addition, the utility model can adjust the movement stroke of the air cylinder according to the requirements of different devices; the cam mechanism is adopted to realize the functions of quick disassembly and installation.

Description

Epoxy annotates material device

Technical Field

The utility model relates to the technical field of epoxy resin insulation casting part processing technology, in particular to an epoxy resin injection device.

Background

The Automatic Pressure Gel (APG) process is one of the best processes for the production of electrical insulation, and is widely used in the power transmission and distribution industry. The epoxy resin condensate is injected into a mould through a pouring channel by external pressure, the injection pressure is kept in the gel process, new materials are continuously injected into the mould cavity, so that the defects caused by solidification shrinkage are compensated, the internal stress is reduced, and the advantages of high precision of a finished piece, good surface quality, high solidification speed, high mould application rate and the like are obtained.

Because epoxy is thermosetting plastic, the curing and molding needs high temperature, the injection time needed by different products is different, and the injection time for submitting larger products is long because of the large weight of resin and the long injection time, the connection time of the injection device and the mould is long, the temperature of the mould is easy to be transferred to the injection device, the curing and blocking of the resin in the injection channel are caused, the shutdown and the maintenance are caused, and the production efficiency is influenced. Therefore, the material injection device needs to be convenient to disassemble, and the solidified matters in the runner are easy to remove.

In addition, for solid sealed polar pole, the mounted position of annotating the material device is located the side of sound mould die joint and is close to lower region, and the notes material device of different specification products often need different motion strokes is supporting with it, in order to improve notes material device's commonality, annotates material device and should set up a plurality of motion strokes in order to satisfy different demands.

In the prior art, as shown in fig. 1, the application number is cn200910136697. X, the patent describes an automatic feeding device for an APG process, which comprises a cavity, a feeding rod, a spring and a sealing ring, wherein the feeding rod is inserted into the cavity in a limiting way in a vertically movable way, a spring is arranged between the bottom of the cavity and the lower end of the feeding rod, a feeding hole is arranged on the side wall of the cavity, a gap between the inner wall of the cavity and the feeding rod is a feeding area, the upper end of the feeding rod extends to form a hollow pipe, the hollow pipe passes through the top opening of the cavity, a feeding hole is arranged on the pipe wall of the hollow pipe, the feeding hole is communicated with the central hole of the hollow pipe, the feeding rod is retracted downwards in the cavity under the action of external force, and the feeding hole is closed under the action of the spring. The disadvantage of this approach is that when the resin in the injection passage solidifies and blocks, disassembly and maintenance are troublesome, and the solidified material remaining in the runner is not easily removed.

Disclosure of Invention

In order to overcome the problems in the related art, the utility model aims to provide an epoxy resin injection device.

According to an embodiment of the present disclosure, there is provided an epoxy resin injection apparatus including: the material injection part comprises a material injection nozzle, and the material injection nozzle is arranged relative to a material injection opening of a to-be-injected mold; the feeding piece is arranged at the rear end of the material injection piece and drives the material injection piece to push in and retract so as to enable the material injection nozzle to be connected with and separated from the material injection opening; and one end of the fixing piece is connected with the feeding piece, and the other end of the fixing piece is connected with the to-be-injected die.

In one embodiment, the injection part further comprises a sealing block, the sealing block is connected with the injection nozzle, and the temperature resistance value of the sealing block is higher than the melting point of the epoxy resin.

In one embodiment, the sealing block is a teflon material.

In one embodiment, the material injection part further comprises a connecting plug and a material injection pipe joint; the material injection nozzle forms a three-way structure so as to be respectively connected with the connection plug, the material injection pipe joint and the sealing block, and the connection plug is detachably connected with the material injection nozzle.

In one embodiment, the feeding part comprises a cylinder and a cylinder joint, and the injection part comprises a connecting rod; one end of the cylinder joint is connected with a piston rod of the cylinder, and the other end of the cylinder joint is connected with the connecting rod.

In one embodiment, the feeding member further comprises a distance adjusting pin, the cylinder joint is sleeved with the connecting rod through a sleeve thereof, the sleeve is provided with a plurality of radial through holes along the length direction of the sleeve, the connecting rod is provided with radial pin holes, and the distance adjusting pin is inserted into the radial pin holes through the radial through holes.

In one embodiment, the fixing member includes a material injection plate, one end of which forms a mounting plate to connect the feeding member; the fixing piece further comprises a heat insulation plate, and the heat insulation plate is arranged between the mounting plate and the connecting surface of the feeding piece.

In one embodiment, the fixing piece comprises a material injection plate, a mounting block and a cam mechanism, wherein a connecting block is formed at one end of the material injection plate, a clamping groove is formed on the connecting block, the mounting block is connected with the material to be injected mold, and a supporting part for supporting the connecting block and a clamping part for clamping the clamping groove are formed on the mounting block; the clamping groove is internally provided with a cavity for accommodating the cam mechanism, the cam mechanism comprises a cam, and the clamping gap between the clamping groove and the clamping part is changed when the cam rotates.

In one embodiment, the clamping groove is in a T-shaped groove shape, the clamping portion is in a T-shaped block shape, and the supporting portions extend to two sides at the lower end of the clamping portion.

In one embodiment, the cam mechanism further comprises a cam shaft and a nut, one end of the cam shaft is provided with an inner hexagonal counter bore, the middle part of the cam shaft is clamped with the cam, and the other end of the cam shaft is provided with threads to be screwed with the nut.

After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:

1. according to the utility model, the feeding part is controlled to be disconnected in a mode of connecting the feeding part with the connecting plug, under the condition that the feeding nozzle is blocked, the feeding part retreats to disconnect the connection between the feeding part and the mould, the connecting plug and the sealing block are detached, so that solidified matters in a runner of the feeding nozzle can be knocked out by a chisel at normal temperature, the feeding nozzle can be directly calcined at high temperature, the maintenance and the cleaning are convenient, and meanwhile, other consumables (such as a sealing ring) are not wasted;

2. according to the utility model, the distance adjusting pin is arranged on the cylinder joint, and is arranged in different pin holes of the cylinder joint according to actual stroke requirements, so that the movement stroke of the cylinder is adjusted, the stroke requirements of different dies are met, the material injection requirements of various products can be met, and the universality of the device is improved;

3. according to the utility model, the cam mechanism is adopted, the cam is driven to eccentrically rotate by rotating the cam shaft to fasten the mounting block, so that the whole material injection device can be quickly dismounted and mounted, and compared with the traditional screw fastening connection dismounting efficiency, the cam mechanism fastening mode is adopted, and the stability is better.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a perspective view of an overall structure according to an embodiment of the present utility model;

FIG. 2 is a partial cross-sectional view of an overall structure shown in an embodiment of the utility model;

FIG. 3 is a cross-sectional view of a shot in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a connection plug according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a feeding member according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a cylinder head according to an embodiment of the present utility model;

FIG. 7 is an assembled schematic view of the overall structure shown in an embodiment of the present utility model;

FIG. 8 is an exploded view of a fastener according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a fastener according to an embodiment of the present utility model;

FIG. 10 is a schematic diagram showing the assembly of a material injection plate according to an embodiment of the present utility model

FIG. 11 is a schematic view of a connection block according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a cam mechanism according to an embodiment of the present utility model;

FIG. 13 is a schematic view of a camshaft according to an embodiment of the present utility model

FIG. 14 is a schematic view of a cam shown in an embodiment of the utility model;

FIG. 15 is a schematic cross-sectional view of a cam in accordance with an embodiment of the utility model;

fig. 16 is a schematic view of a mounting block according to an embodiment of the present utility model.

Reference numerals illustrate:

the injection part 1, the injection nozzle 11, the connecting plug 12, the flange 121, the plunger shaft 122, the connecting rod 123, the injection pipe joint 13 and the sealing block 14; the feeding part 2, the air cylinder 21, the guide post 22, the air cylinder joint 23, the connecting plate 231, the sleeve 232, the radial through hole 2321 and the distance adjusting pin 24; the fixing part 3, the material injection plate 31, the connecting block 311, the T-shaped groove 3111, the square cavity 3112, the through hole 3113, the transition plate 312, the mounting plate 313, the cam mechanism 32, the cam shaft 321, the cam 322, the nut 323, the mounting block 33, the T-shaped block body 331, the positioning boss 332, the positioning opening 333, the guide sleeve 34, the self-lubricating copper sleeve 35 and the heat insulation plate 36.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, it should be noted that:

the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not denote or imply that the apparatus or elements of the present utility model must have a particular orientation, and thus should not be construed as limiting the utility model.

When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the utility model will be understood by those skilled in the art according to the specific circumstances.

Examples

Referring to fig. 1 and 2, an embodiment of the present disclosure provides an epoxy resin injection apparatus, which includes an injection member 1, a feeding member 2, and a fixing member 3; the material injecting part 1 is arranged at the front end of the material feeding part 2, the material feeding part 2 drives the material injecting part 1 to complete jacking and retreating of the material injecting part 1, the material feeding part 2 is fixedly connected with one end of the fixing part 3, the other end of the fixing part 3 is connected with material injecting equipment, and the material injecting equipment is existing and is not separately described herein.

Referring to fig. 3 and 4, the injection part 1 includes an injection nozzle 11, a connection plug 12, an injection pipe joint 13, and a sealing block 14; for convenience of description, in the present utility model, the end of the injection nozzle 11 near the injection device is defined as the front end, the end of the injection nozzle 11 far away from the injection device is defined as the rear end, a three-way structure is formed in the inner cavity of the injection nozzle 11, and in this embodiment, the interface of the "Y" shaped flow channel is respectively connected with the connection plug 12, the injection pipe joint 13 and the sealing block 14. Wherein, the sealing block 14 is connected with the front end of the material injection nozzle 11 in an interference way; the connecting plug 12 is detachably arranged at the rear end of the material injection nozzle, and the material injection nozzle 11, the connecting plug 12 and the sealing block 14 are arranged on the same axis. The injection pipe joint 13 is arranged at the joint of the Y-shaped runner, and the rubber pipe can be sleeved on the injection pipe joint 13 during injection and reliably connected through clamp fit, so that the rubber pipe is not easy to fall off.

Specifically, the connection plug 12 is a shaft with a flange 121, and the flange 121 is provided in the middle portion and connected to the plunger shaft 122 and the connecting rod 123. The front end of the plunger shaft 122 is provided with a seal ring. The plunger shaft 122 is inserted into the Y-shaped flow passage, and the flange 121 is fastened to the nozzle 11 by screws.

Preferably, the sealing block 14 has a temperature resistance value above the melting point of the epoxy resin so as not to be affected when the plugged epoxy resin is removed by calcination. The Teflon sealing block has the characteristics of high temperature resistance and non-sticking, and is convenient for calcination and taking out of the blocked epoxy resin.

Referring to fig. 5 and 6, the feeding member 2 includes a cylinder 21, a guide post 22, a cylinder joint 23, and a distance adjusting pin 24.

The front end of a piston rod of the air cylinder 21 is in threaded connection with the middle part of an air cylinder joint 23, the upper end and the lower end of the air cylinder joint 23 are fixedly connected with one end of a guide post 22 through screws, and the guide posts 22 are arranged on the upper side and the lower side of the air cylinder 21 in pairs and used for guiding and bearing loads.

Referring to fig. 6, the cylinder joint 23 includes a connection plate 231 and a sleeve 232; the upper end and the lower end of the connecting plate 231 are provided with counter bores which are respectively connected with one end of the guide post 22; the sleeve 232 is provided with at least more than one radial through hole 232 in a penetrating way along the radial direction, the sleeve 232 is coaxially sleeved outside the connecting plug 12, the radial through hole 2321 of the sleeve 232 is aligned with the radial pin hole 124 of the connecting rod 123, and the distance-adjusting pin 24 penetrates through the radial through hole 2321 and the radial pin hole 124 to fix the injection part 1 at the front end of the cylinder joint 23.

Referring to fig. 8 and 9, the fixing member 3 includes: the device comprises a material injection plate 31, a cam mechanism 32, a mounting block 33, a guide sleeve 34, a self-lubricating copper sleeve 35 and a heat insulation plate 36.

The material injecting plate 31 includes a connecting block 311, a transition plate 312, and a mounting plate 313, wherein front and rear ends of the transition plate 312 are respectively embedded into positioning grooves of the connecting block 311 and the mounting plate 313, and the transition plate 312 and the connecting block 311, and the transition plate 312 and the mounting plate 313 are fixed by welding, thereby forming a whole. Referring to fig. 11, the connection block 311 is provided with a T-shaped slot 3111 extending from the top surface to the bottom surface in the vertical direction, a square cavity 3112 is provided at the bottom of the T-shaped slot 3111, and through holes 3113 are provided at the top and bottom surfaces of the square cavity 3112 in the vertical direction for accommodating the cam mechanism 32. The mounting plate 313 is provided with an upper through hole, a middle through hole and a lower through hole, the middle through hole is used for penetrating through a cylinder piston rod, guide sleeves 34 are arranged in the through holes on the upper side and the lower side, a self-lubricating copper sleeve 35 is coaxially arranged in the guide sleeves 34, the self-lubricating copper sleeve 35 is matched with the guide post 22, and the guide post 22 linearly slides along the self-lubricating copper sleeve 35; the heat insulating plate 36 is installed between the cylinder 21 and the mounting plate 313.

It should be noted that, the self-lubricating copper sleeve 35 in this embodiment may be replaced by a linear bearing, the linear bearing is mounted in the guide sleeve 34, and the guide post 22 is slidably engaged along the linear bearing.

Referring to fig. 16, the mounting block 33 includes a T-shaped block body 331, a positioning boss 332, and a positioning opening 333. The T-shaped block body 331 is matched with the T-shaped groove 3111, a positioning boss 332 is arranged at the bottom of the mounting block 33, and the connecting block 311 is limited when the mounting block 33 is mounted; the mounting block 33 is inserted into a positioning groove in the mold, positioned through the positioning opening 333, and the mounting block 33 is fastened to the mold by a screw.

Referring to fig. 12, 13, 14 and 15, the cam mechanism 32 includes a cam shaft 321, a cam 322, and a nut 323; one end of the cam shaft 321 is provided with an inner hexagonal counter bore, the middle part of the cam shaft 321 is provided with a square flat position matched with the cam 322, and the other end of the cam shaft 321 is provided with threads; the cam 322 is a cylindrical shaft, a square through hole is formed in the penetrating axial direction, and the square through hole of the cam 322 is eccentrically arranged; a nut 323 is mounted on the threaded end of the cam shaft 321. During operation, the cam shaft 321 is rotated, and the flat position on the cam shaft 321 drives the cam 322 to eccentrically rotate, so that the cam 322 is pressed on the mounting block 33, the nut 323 is screwed down, and the cam mechanism 32 is quickly mounted and dismounted.

The whole working principle is as follows:

the mounting block 33 is fixed on the die, and the positioning boss 332 limits the connecting block 311; rotating the cam shaft 321 to drive the eccentric cam 322 to be pressed on the T-shaped block body 331, and screwing the nut 323; realizing the quick assembly and disassembly of the integral device and the die; if the common screws are fixedly connected, the disassembly and assembly efficiency is greatly reduced;

the cylinder 21 drives the cylinder joint 23 to jack in, drives the material injection piece 1 to jack in, and the sealing block 14 of the material injection piece 1 is connected with the die to establish a material injection channel; the distance adjusting pins 24 are arranged in different pin holes of the cylinder joint 23, so that different jacking distances are obtained, the adjustment margin of the integral material injection device is improved, and the universality of the integral material injection device is improved;

because the temperature exceeds 100 ℃ when the die works, the resin in the runner of the material injection part is easy to be solidified and blocked due to high temperature, and the material injection part 1 needs to be frequently assembled, disassembled and maintained; under the condition of blockage of the material injection nozzle, the cylinder is retracted to disconnect the connection with the die, the connection plug and the sealing block are detached, and a solidified material in a runner of the material injection nozzle can be knocked out by a chisel at normal temperature; or the material injection nozzle is directly calcined at high temperature, so that the maintenance and the cleaning are convenient, and meanwhile, other consumable products (such as a sealing ring) are not wasted.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (10)

1. An epoxy resin injection apparatus, comprising:

the material injection part comprises a material injection nozzle, and the material injection nozzle is arranged relative to a material injection opening of a to-be-injected mold;

the feeding piece is arranged at the rear end of the material injection piece and drives the material injection piece to push in and retract so as to enable the material injection nozzle to be connected with and separated from the material injection opening;

and one end of the fixing piece is connected with the feeding piece, and the other end of the fixing piece is connected with the to-be-injected die.

2. An epoxy resin injection apparatus as defined in claim 1, wherein: the material injection part further comprises a sealing block, the sealing block is connected with the material injection nozzle, and the temperature resistance value of the sealing block is higher than the melting point of the epoxy resin.

3. An epoxy resin injection apparatus as claimed in claim 2, wherein: the sealing block is made of Teflon materials.

4. An epoxy resin injection apparatus as defined in claim 1, wherein: the material injection piece further comprises a connecting plug and a material injection pipe joint; the material injection nozzle forms a three-way structure so as to be respectively connected with the connection plug, the material injection pipe joint and the sealing block, and the connection plug is detachably connected with the material injection nozzle.

5. An epoxy resin injection apparatus as defined in claim 1, wherein: the feeding part comprises a cylinder and a cylinder joint, and the material injection part comprises a connecting rod; one end of the cylinder joint is connected with a piston rod of the cylinder, and the other end of the cylinder joint is connected with the connecting rod.

6. An epoxy resin injection apparatus as defined in claim 5, wherein: the feeding piece further comprises a distance adjusting pin, the cylinder joint is sleeved with the connecting rod through a sleeve, a plurality of radial through holes are formed in the sleeve along the length direction of the sleeve, the connecting rod is provided with radial pin holes, and the distance adjusting pin penetrates through the radial through holes and is inserted into the radial pin holes.

7. An epoxy resin injection apparatus as defined in claim 1, wherein: the fixing piece comprises a material injection plate, and one end of the material injection plate is provided with a mounting plate to be connected with the feeding piece; the fixing piece further comprises a heat insulation plate, and the heat insulation plate is arranged between the mounting plate and the connecting surface of the feeding piece.

8. An epoxy resin injection apparatus as defined in claim 1, wherein: the fixing piece comprises a material injection plate, a mounting block and a cam mechanism, wherein a connecting block is formed at one end of the material injection plate, a clamping groove is formed in the connecting block, the mounting block is connected with the material to be injected mould, and a supporting part for supporting the connecting block and a clamping part for clamping the clamping groove are formed in the mounting block; the clamping groove is internally provided with a cavity for accommodating the cam mechanism, the cam mechanism comprises a cam, and the clamping gap between the clamping groove and the clamping part is changed when the cam rotates.

9. An epoxy resin injection apparatus as defined in claim 8, wherein: the clamping groove is in a T-shaped groove shape, the clamping part is in a T-shaped block shape, and the lower end of the clamping part extends to two sides to form the supporting part.

10. An epoxy resin injection apparatus as defined in claim 8, wherein: the cam mechanism further comprises a cam shaft and a nut, one end of the cam shaft is provided with an inner hexagonal counter bore, the middle part of the cam shaft is clamped with the cam, and the other end of the cam shaft is provided with threads to be screwed with the nut.