Epoxy resin injection device

Abstract

The utility model discloses an epoxy resin injection device, which relates to the field of chemical industry production, aims to solve the problem that the inside of an existing injection barrel is easily blocked by cured materials, and adopts the technical scheme that the epoxy resin injection device comprises a support mounted on injection molding equipment, a propeller is fixed on the support, and a connecting frame is fixed at the end, facing the support, of the propeller; a material injection barrel is arranged in the connecting frame and rotationally connected into the connecting frame, a cleaning barrel is slidably connected to the end, close to the support, of the material injection barrel, a driving barrel is clamped to the end, away from the material injection barrel, of the cleaning barrel, and a driving part is connected to the end, away from the cleaning barrel, of the driving barrel and comprises an air cylinder sliding in the support; the air cylinder is connected with a connecting assembly, the end, away from the air cylinder, of the connecting assembly is fixedly connected with the driving barrel, the end, away from the air cylinder, of the connecting assembly is fixedly connected with the connecting frame, and the technical effect of automatically removing solidified materials in the material injection barrel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to an epoxy resin injection device. Background Art

[0002] The automatic pressure gel (APG) process is one of the best processes for the production of electrical insulation parts and is widely used in the power transmission and distribution industry. It injects epoxy resin solidified material into the mold through the runner under external pressure, maintains injection pressure during the gel process, and continuously injects new material into the mold cavity to compensate for defects caused by curing shrinkage and reduce internal stress, so as to achieve high precision of parts, good surface quality, fast curing speed, and high mold application rate.

[0003] Since epoxy resin is a thermosetting plastic, high temperature is required for curing and molding. Different products require different injection times. Larger products require a long injection time due to the heavy weight of the resin. The injection device is connected to the mold for a long time, which can easily cause the mold temperature to be transmitted to the injection device, resulting in the resin curing and clogging in the injection channel, causing downtime for maintenance and affecting production efficiency. Therefore, the injection device needs to be easy to disassemble and the solidified material in the runner needs to be easy to remove.

[0004] In addition, for the sealed pole, the installation position of the injection device is generally located in the lower side area of ​​the dynamic and static mold parting surface. Different specifications of products often require injection devices with different motion strokes to match them. In order to improve the versatility of the injection device, the injection device should be equipped with multiple motion strokes to meet different needs.

[0005] In the current related technology, the application number is CN200920136697.X. The utility model patent records an automatic injection device for APG process, including a cavity, an injection rod, a spring and a sealing ring. An injection rod is inserted in the cavity in a movable manner. A spring is provided between the bottom of the cavity and the lower end of the injection rod. A feed port is provided on the side wall of the cavity. The gap between the inner wall of the cavity and the injection rod is a feeding area. The upper end of the injection rod extends to form a hollow tube. The hollow tube passes through the top opening of the cavity. A feed port is provided on the wall of the hollow tube. The feed port connects the central hole of the hollow tube and the feeding area. The injection rod retracts downward into the cavity under the action of an external force to open the feed port and moves upward under the action of the spring to close the feed port. The disadvantage of this method is that when the resin in the injection channel is solidified and blocked, it is troublesome to disassemble and repair, and the solidified material remaining in the flow channel is not easy to remove. Utility Model Content

[0006] The utility model aims to provide an epoxy resin injection device which can automatically remove the solidified material inside the injection barrel.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An epoxy resin injection device comprises a bracket installed on an injection molding device, a propeller is fixed on the bracket, a connecting frame is fixed to the propeller toward the bracket end, an injection barrel is arranged inside the connecting frame, the injection barrel is rotatably connected inside the connecting frame, the injection barrel is slidably connected to a cleaning barrel near the bracket end, a driving barrel is clamped to the cleaning barrel end away from the injection barrel end, the driving barrel is connected to a driving member away from the cleaning barrel end, the driving member comprises a cylinder sliding inside the bracket, the cylinder is arranged at a 45° angle to the injection barrel, the cylinder is connected to a connecting assembly, the connecting assembly is fixedly connected to the driving barrel away from the cylinder end, and the connecting assembly is fixedly connected to the connecting frame away from the cylinder end.

[0009] Furthermore, the connecting assembly includes a connecting block fixedly connected to the output end of the cylinder, a flower axis is rotatably connected inside the connecting block, a sleeve is provided outside the flower axis, a fixed tube is provided outside the sleeve, the fixed tube is fixedly connected to the connecting frame, the sleeve and the fixed tube are rotatably connected, and the flower axis fixes the drive tube away from the cylinder end.

[0010] By adopting the above technical solution and setting the flower axis structure, the sleeve can be ejected and moved simultaneously with its rotation, which is convenient for operation.

[0011] Furthermore, the driving member also includes a first gear fixed to the outside of the sleeve, the first gear is meshed with a second gear, a driving shaft is fixed inside the second gear, the driving shaft is rotatably connected to the inside of the bracket, one end of the driving shaft is connected to a first motor, and the first motor screw is installed inside the bracket.

[0012] By adopting the above technical solution, the first motor can drive the sleeve to rotate after being turned on.

[0013] Furthermore, the connecting frame is rotatably connected to a support rod inside, and two support rods are symmetrically arranged about the middle of the connecting frame. Each support rod is fixed with a clamp at the end away from the connecting frame, and the two clamps are fixed to the outside of the injection barrel by screws. The support rod is connected to a second motor at the end away from the clamp, and the second motor is screwed on the side of the connecting frame.

[0014] By adopting the above technical solution, after being turned on, the second motor can drive the support rod to rotate, thereby realizing the rotation of the injection barrel.

[0015] Furthermore, the cleaning barrel is conically arranged toward the inner end of the injection barrel, a plurality of ridges are arranged on the surface of the cleaning barrel, a plurality of first latch teeth are fixed to the inner wall of the cleaning barrel, the first latch teeth are inclinedly arranged, and a slot is formed between two adjacent first latch teeth.

[0016] Furthermore, a plurality of second latching teeth are fixed on the outside of the driving cylinder, and the second latching teeth are arranged obliquely, and the inclination angle of the second latching teeth is consistent with the inclination angle of the first latching teeth.

[0017] By adopting the above technical solution, the conical setting at the front end of the cleaning cylinder can facilitate the cleaning of the inside of the injection port at the front end of the injection cylinder. At the same time, by setting the first latch tooth corresponding to the driving cylinder and placing the second latch tooth in the slot, the driving cylinder and the cleaning cylinder can be integrated and rotated synchronously.

[0018] In summary, the beneficial technical effects of the utility model are:

[0019] 1. The drive cylinder and the cleaning cylinder structure inserted in the injection cylinder are adopted. The drive cylinder can be clamped in the cleaning cylinder through mechanical drive, and then the cleaning cylinder is driven to rotate and ejected at the same time, so as to automatically clean the inside of the injection cylinder, avoid the operation of disassembling the injection cylinder, and improve the cleaning efficiency;

[0020] 2. The cleaning barrel with ribs is used to scrape the inner wall of the injection barrel when rotating to prevent the solidified material from sticking to the inner wall of the injection barrel, so as to clean it completely and improve the processing efficiency;

[0021] 3. A cylinder set at a 45° angle is used. After the inside of the injection barrel is cleaned, the material scraped off the inside will automatically fall out of the injection barrel because the injection barrel is placed at an angle, further improving the convenience of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 is a schematic structural diagram of an epoxy resin injection device according to this embodiment;

[0024] Figure 2 This is an epoxy resin injection device of this embodiment. Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of a driving cylinder of an epoxy resin injection device according to this embodiment;

[0026] Figure 4 This is an epoxy resin injection device of this embodiment. Figure 1 Enlarged structural diagram at B in the middle.

[0027] In the figure, 1, bracket; 2, thruster; 3, connecting frame; 4, injection barrel; 5, cleaning barrel; 6, driving barrel; 7, cylinder; 8, connecting block; 9, flower axis; 10, sleeve; 11, fixing tube; 12, first gear; 13, second gear; 14, driving shaft; 15, first motor; 16, support rod; 17, clamp; 18, second motor; 19, rib; 20, first clamping tooth; 21, clamping groove; 22, second clamping tooth. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] The following will be combined with the drawings in 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 in 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.

[0030] See also Figure 1-4 The utility model provides a technical solution: an epoxy resin injection device, comprising a bracket 1 installed on an injection molding device, a propeller 2 is fixed on the bracket 1, and the propeller 2 can be a device such as an oil cylinder, a connecting frame 3 is fixed to the end of the propeller 2 facing the bracket 1, an injection barrel 4 is arranged inside the connecting frame 3, the injection barrel 4 is rotatably connected inside the connecting frame 3, the injection barrel 4 is slidably connected with a cleaning barrel 5 near the end of the bracket 1, the cleaning barrel 5 is clamped with a driving barrel 6 at the end away from the injection barrel 4, and the driving barrel 6 is connected to a driving member at the end away from the cleaning barrel 5, the driving member comprises a cylinder 7 sliding inside the bracket 1, the cylinder 7 is arranged at a 45° angle to the injection barrel 4, the cylinder 7 is connected to a connecting assembly, the connecting assembly is fixedly connected to the driving barrel 6 at the end away from the cylinder 7, and the connecting assembly is fixedly connected to the connecting frame 3 at the end away from the cylinder 7.

[0031] As an embodiment, the connecting assembly includes a connecting block 8 fixedly connected to the output end of the cylinder 7, a flower axis 9 is rotatably connected inside the connecting block 8, a sleeve 10 is sleeved outside the flower axis 9, a fixed tube 11 is provided outside the sleeve 10, the fixed tube 11 is fixedly connected to the connecting frame 3, the sleeve 10 and the fixed tube 11 are rotatably connected, and the flower axis 9 is fixed to the drive tube 6 away from the end of the cylinder 7.

[0032] The specific driving component also includes a first gear 12 fixed to the outside of the sleeve 10, the first gear 12 is meshed with a second gear 13, a driving shaft 14 is fixed inside the second gear 13, the driving shaft 14 is rotatably connected to the inside of the bracket 1, one end of the driving shaft 14 is connected to a first motor 15, and the first motor 15 is screwed installed inside the bracket 1.

[0033] When the first motor 15 is working, it can drive the second gear 13 to rotate, and then the second gear 13 drives the first gear 12 to rotate. When the first gear 12 rotates, since the first gear 12 and the sleeve 10 are fixedly connected, when the first gear 12 rotates, the sleeve 10 can follow the rotation, and then drive the flower axis 9 to rotate, so that the flower axis 9 drives the driving tube 6 to rotate. When the cylinder 7 is opened, the connecting block 8 can be driven to be ejected, and then the entire flower axis 9 can be driven to be ejected, thereby driving the driving tube 6 to be ejected obliquely upward.

[0034] As an implementation mode, a support rod 16 is rotatably connected inside the connecting frame 3, and two support rods 16 are symmetrically arranged about the middle part of the connecting frame 3. A clamp 17 is fixed to the end of each support rod 16 away from the connecting frame 3, and the two clamps 17 are fixed to the outside of the injection barrel 4 by screws. A second motor 18 is connected to the end of the support rod 16 away from the clamp 17, and the second motor 18 is screwed on the side of the connecting frame 3.

[0035] By turning on the second motor 18, the second motor 18 can drive the support rod 16 to rotate, and then drive the entire injection barrel 4 to rotate. After the injection barrel 4 rotates 45°, the injection barrel 4 and the driving barrel 6 are in the same straight line. At this time, the above-mentioned cylinder 7 works to drive the driving barrel 6 to be inserted into the cleaning barrel 5 inside the injection barrel 4.

[0036] Furthermore, the cleaning cylinder 5 is tapered at its inner end toward the injection cylinder 4 , and a plurality of ridges 19 are provided on the surface of the cleaning cylinder 5 . A plurality of first latch teeth 20 are fixed to the inner wall of the cleaning cylinder 5 . The first latch teeth 20 are inclined, and a slot 21 is formed between two adjacent first latch teeth 20 .

[0037] Meanwhile, a plurality of second latch teeth 22 are fixed to the outside of the driving cylinder 6 . The second latch teeth 22 are arranged tilted, and the tilt angle of the second latch teeth 22 is consistent with the tilt angle of the first latch teeth 20 .

[0038] After plugging in, turn on the first motor 15 to drive the driving cylinder 6 to rotate. After the driving cylinder 6 rotates, the second latch tooth 22 is engaged in the above-mentioned latch groove 21. At this time, as the rotation direction of the driving cylinder 6 remains unchanged, the driving cylinder 6 can drive the cleaning cylinder 5 to rotate. At the same time, due to the setting of the flower axis 9, the driving cylinder 6 can be pushed forward while rotating, and then the cleaning cylinder 5 moves toward the inside of the injection cylinder 4 while rotating.

[0039] The working principle of the utility model is as follows: after the injection is completed, the driving cylinder 6 is inserted into the cleaning cylinder 5, and the cleaning cylinder 5 is driven by the driving cylinder 6 to rotate and move forward. The solid material remaining on the inner wall of the injection cylinder 4 is scraped off by the friction between the ribs 19 on the cleaning cylinder 5 and the inner wall of the injection cylinder 4. At the same time, the front end of the cleaning cylinder 5 is conical. When it moves to the front end of the injection cylinder 4, it can be inserted into the injection port at the front end of the injection cylinder 4 to clean the entire inner wall of the injection cylinder 4. After cleaning, the air inlet valve of the cylinder 7 is closed, and the cylinder 7 drives the driving cylinder 6 to move backward, and the cleaning cylinder 5 gradually withdraws from the injection cylinder 4. At this time, since the injection cylinder 4 is tilted, the scraped and dropped materials inside automatically fall out of the injection cylinder 4, and then the first motor 15 is turned off, the cleaning cylinder 5 is removed and pushed into the injection cylinder 4. The cleaning cylinder 5 can be fastened to the inside of the injection cylinder 4 through the friction between the ribs 19 and the injection cylinder 4, and at the same time, one end of the injection cylinder 4 can be sealed and used for injection again.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An epoxy resin injection device, comprising a bracket (1) mounted on an injection molding device, a propeller (2) fixed on the bracket (1), a connecting frame (3) fixed on the end of the propeller (2) facing the bracket (1), an injection barrel (4) arranged inside the connecting frame (3), characterized in that: The injection barrel (4) is rotatably connected to the inside of the connecting frame (3); the end of the injection barrel (4) close to the bracket (1) is slidably connected to a cleaning barrel (5); the end of the cleaning barrel (5) away from the injection barrel (4) is clamped with a driving barrel (6); the end of the driving barrel (6) away from the cleaning barrel (5) is connected to a driving member, and the driving member includes a cylinder (7) sliding inside the bracket (1); the cylinder (7) and the injection barrel (4) are arranged at an angle of 45°; the cylinder (7) is connected to a connecting component; the end of the connecting component away from the cylinder (7) is fixedly connected to the driving barrel (6); and the end of the connecting component away from the cylinder (7) is fixedly connected to the connecting frame (3).

2. An epoxy resin injection device according to claim 1, characterized in that: The connection assembly comprises a connection block (8) fixedly connected to the output end of the cylinder (7); a flower shaft (9) is rotatably connected inside the connection block (8); a sleeve (10) is sleeved outside the flower shaft (9); a fixed tube (11) is provided outside the sleeve (10); the fixed tube (11) is fixedly connected to the connection frame (3); the sleeve (10) and the fixed tube (11) are rotatably connected; the end of the flower shaft (9) away from the cylinder (7) is fixed to the driving cylinder (6).

3. An epoxy resin injection device according to claim 2, characterized in that: The driving member also includes a first gear (12) fixed to the outside of the sleeve (10), the first gear (12) is meshed with a second gear (13), a driving shaft (14) is fixed inside the second gear (13), the driving shaft (14) is rotatably connected to the inside of the bracket (1), one end of the driving shaft (14) is connected to a first motor (15), and the first motor (15) is screwed inside the bracket (1).

4. The epoxy resin injection device according to claim 1, characterized in that: The connecting frame (3) is internally rotatably connected to a support rod (16), two support rods (16) are symmetrically arranged about the middle of the connecting frame (3), each support rod (16) is fixed with a clamp (17) at the end away from the connecting frame (3), the two clamps (17) are fixed to the outside of the injection barrel (4) by screws, and the end of the support rod (16) away from the clamp (17) is connected to a second motor (18), and the second motor (18) is screwed on the side of the connecting frame (3).

5. The epoxy resin injection device according to claim 1, characterized in that: The cleaning cylinder (5) is tapered at its inner end facing the injection cylinder (4), a plurality of ribs (19) are provided on the surface of the cleaning cylinder (5), a plurality of first latching teeth (20) are fixed on the inner wall of the cleaning cylinder (5), the first latching teeth (20) are inclined, and a latching groove (21) is formed between two adjacent first latching teeth (20).

6. An epoxy resin injection device according to claim 5, characterized in that: A plurality of second latch teeth (22) are fixed on the outside of the driving cylinder (6), and the second latch teeth (22) are arranged obliquely, and the inclination angle of the second latch teeth (22) is consistent with the inclination angle of the first latch teeth (20).

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