Injection mold structure for processing plastic bolt sleeve

Abstract

The utility model discloses an injection mold structure for processing a plastic bolt sleeve, which comprises an upper injection mold body, a lower injection mold body and a lower mold bottom plate, three hot glue nozzles respectively corresponding to three bolt sleeve injection molding cavities are arranged at the bottom end of a hot glue runner, three heating rings and three electric heating wires are arranged in the hot glue runner, and the heating rings and the electric heating wires are sleeved with the hot glue nozzles. The hot glue nozzle is sleeved with the hot glue runner, the hot glue runner is internally provided with three heating rings and three electric heating wires, the electric heating wires are connected with each heating ring through three contacts, the corners of the hot glue runner are provided with internal electric seats, and the internal electric seats are internally connected with wiring terminals in an inserted mode. The hot glue runner is internally provided with the three heating rings and the electric heating wires which are sleeved with the hot glue nozzle, and the corners of the hot glue runner are provided with the internal electric seats; and the wiring terminal is inserted and connected into the internal power socket, and the external power socket is embedded and mounted at an opening in one side of the upper injection mold body, so that a hot glue runner and the three hot glue nozzles are conveniently heated, the flowability of a melt can be improved, and the runner and the hot glue nozzles are prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to an injection mold structure for processing plastic bolt sleeves, belonging to the field of injection mold technology. Background Technology

[0002] Plastic bolt sleeves are structural components designed to better protect the threaded parts of bolts. They are typically mass-produced using injection molds. Existing technologies, such as the plastic injection mold with patent application number CN202022123645.8, which provides an easy-to-assemble and disassemble plastic injection mold, fall under the field of plastic processing technology. This solution, through the interaction of a sliding rod, locking bolt, first slot, and second slot, greatly facilitates the quick disassembly and assembly of the injection mold by workers, saving time and effort and improving injection efficiency. Furthermore, the inclusion of clamping blocks ensures the stability of the injection mold during the injection process, effectively guaranteeing the molding effect of the plastic inside the injection mold body and improving the production quality of the injection molded product.

[0003] The disadvantage of the aforementioned plastic injection mold is that during the injection stage, the molten plastic tends to cool down when flowing in the upper mold body, resulting in poor fluidity and solidification that causes flow channel blockage. To address this, we have designed an injection mold structure for processing plastic bolt sleeves. Utility Model Content

[0004] The purpose of this utility model is to provide an injection mold structure for processing plastic bolt sleeves, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold structure for processing plastic bolt sleeves, comprising an upper injection mold body, a lower injection mold body, and a lower mold base plate. The upper injection mold body is connected to the lower injection mold body via guide pillars. The lower mold base plate is fastened to the bottom end of the lower injection mold body with bolts. Three bolt sleeve injection cavities are provided in the injection mold cavity at the top of the lower injection mold body. A glue outlet plate is embedded in the middle of the top of the upper injection mold body. The bottom end of the glue outlet plate is provided with a hot glue runner installed inside the upper injection mold body. The bottom end of the hot glue flow channel is provided with three hot glue nozzles, each corresponding to one of the three bolt-fitted injection cavities. Inside the hot glue flow channel are three heating rings and electric heating wires fitted onto the hot glue nozzles. The electric heating wires are connected to each heating ring through three contacts. An internal electrical socket is provided at the corner of the hot glue flow channel. A terminal block is plugged into the internal electrical socket. An external power supply socket is embedded in the opening on one side of the upper injection mold body. A plug limiting bracket is provided on the outside of the external power supply socket. The internal part of the external power supply socket is connected to the terminal block wiring.

[0006] In the above-mentioned injection mold structure for processing plastic bolt sleeves, three pneumatic ejector rods are provided at the top of the lower mold base plate, and the heads of the three pneumatic ejector rods correspond to the three bolt sleeve injection cavities.

[0007] In the above-mentioned injection mold structure for processing plastic bolt sleeves, a fan is embedded on the back of the lower injection mold body, and an air ring embedded in the lower injection mold body is fitted on the outer ring of each of the three bolt sleeve injection cavities. The three air rings are connected to each other and are connected to the air outlet of the fan through an air passage.

[0008] In the above-mentioned injection mold structure for processing plastic bolt sleeves, exhaust channels are installed on the sides of the air rings located on both sides, and the exhaust channels extend to the front of the lower injection mold body and are provided with exhaust vents.

[0009] In the above-mentioned injection mold structure for processing plastic bolt sleeves, mold opening lifting rings are installed on the middle of both sides of the upper injection mold body.

[0010] In the above-mentioned injection mold structure for processing plastic bolt sleeves, an air intake fan connected to the lower injection mold body is provided on the back of the fan.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model discloses an injection mold structure for processing plastic bolt sleeves. It features three heating rings and electric heating wires fitted inside the hot glue flow channel and hot glue nozzles. An internal electrical socket is located at the corner of the hot glue flow channel, with a terminal block inserted into the socket. An external power supply socket is embedded in the opening on one side of the upper injection mold body, facilitating heating of the hot glue flow channel and the three hot glue nozzles. This improves the fluidity of the melt and prevents blockage of the flow channel and hot glue nozzles. A fan is installed on the back of the lower injection mold body, and air rings are fitted and embedded inside the lower injection mold body around the outer ring of the bolt sleeve injection cavity. The three air rings are interconnected and connected to the fan outlet via air ducts, providing excellent air cooling for rapid cooling and accelerated injection molding. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an injection mold structure for processing plastic bolt sleeves according to this utility model.

[0014] Figure 2 This is a schematic diagram of the injection mold structure of the lower mold body for processing plastic bolt sleeves according to this utility model.

[0015] Figure 3 This is a schematic diagram of the injection mold structure of the upper mold body for processing plastic bolt sleeves according to this utility model.

[0016] In the diagram: 1. Upper injection mold body; 2. Lower injection mold body; 3. Lower mold base plate; 4. Glue tray; 5. Mold opening lifting ring; 6. External power supply socket; 7. Plug limit bracket; 8. Exhaust vent; 9. Fan; 10. Intake fan; 11. Pneumatic ejector rod; 12. Air ring; 13. Exhaust duct; 14. Hot glue runner; 15. Hot glue nozzle; 16. Internal power socket; 17. Terminal block; 18. Heating wire; 19. Heating ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution for the injection mold structure of plastic bolt sleeve processing:

[0019] Injection molds include, but are not limited to, upper injection mold body 1, lower injection mold body 2, and lower mold base plate 3. Upper injection mold body 1 is connected to lower injection mold body 2 by guide pillars. Lower mold base plate 3 is fastened to the bottom end of lower injection mold body 2 by bolts. Three bolt sleeves are provided in the injection cavity at the top of lower injection mold body 2. A glue outlet plate 4 is embedded in the middle of the top of upper injection mold body 1.

[0020] Furthermore, to facilitate mold opening operations, the following structure is provided: three pneumatic ejector rods 11 are provided at the top of the lower mold base plate 3, and the heads of the three pneumatic ejector rods 11 correspond to three bolt sleeves for the injection cavity; mold opening lifting rings 5 ​​are installed in the middle of both sides of the upper injection mold body 1.

[0021] Example 1: A hot glue runner 14 is provided at the bottom of the glue outlet plate 4 and installed inside the injection upper mold body 1. Three hot glue nozzles 15 are provided at the bottom of the hot glue runner 14, which correspond to the injection cavities of the three bolt sleeves respectively. Three heating rings 19 and electric heating wires 18 are provided inside the hot glue runner 14 and fitted with the hot glue nozzles 15. The electric heating wires 18 are connected to each heating ring 19 through three contacts. An internal electrical socket 16 is provided at the corner of the hot glue runner 14. A terminal block 17 is plugged into the internal part of the internal electrical socket 16. An external power supply socket 6 is embedded in the opening on one side of the injection upper mold body 1. A plug limit bracket 7 is provided on the outside of the external power supply socket 6. The internal part of the external power supply socket 6 is connected to the wiring of the terminal block 17.

[0022] The external power supply base 6 is connected to an external power source. When the heating ring 19 and the electric heating wire 18 are powered on, they generate heat to heat the hot glue channel and the three hot glue nozzles 15, which can improve the fluidity of the melt and prevent the channel and hot glue nozzles 15 from becoming blocked.

[0023] Example 2: A fan 9 is embedded in the back of the injection mold 2. Three bolts are fitted around the outer ring of the injection cavity and air rings 12 are embedded inside the injection mold 2. The three air rings 12 are connected to each other and connected to the air outlet of the fan 9 through air passages. Exhaust passages 13 are installed on the sides of the air rings 12 on both sides. The exhaust passages 13 extend to the front of the injection mold 2 and are provided with exhaust ports 8. An air intake fan 10 connected to the injection mold 2 is provided on the back of the fan 9.

[0024] When cooling is required, the fan 9 is powered on, generating airflow that enters the three air rings 12, carrying the heat from the injection cavity of the bolt sleeve to the exhaust port 8 and discharging it into the air, thus facilitating faster cooling and molding.

[0025] Working principle: The upper injection mold 1 is connected to the lower injection mold 2 through the guide pillar. The plastic melt is injected into the three bolt sleeve injection cavities through the injection nozzle 4 corresponding to the injection part of the injection molding machine, and then cooled and formed. This solution can heat the hot glue channel 14 and the three hot glue nozzles 15, which can improve the fluidity of the melt and avoid blockage of the channel and hot glue nozzles.

[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. An injection mold structure for processing plastic bolt sleeves, comprising an upper injection mold body (1), a lower injection mold body (2), and a lower mold base plate (3), characterized in that, The upper injection mold (1) is connected to the lower injection mold (2) by guide pillars. The lower mold base plate (3) is fastened to the bottom end of the lower injection mold (2) by bolts. Three bolt-fitted injection cavities are provided in the injection mold cavity at the top of the lower injection mold (2). A glue outlet plate (4) is embedded in the middle of the top of the upper injection mold (1). The bottom end of the glue outlet plate (4) is provided with a hot glue runner (14) installed inside the upper injection mold (1). The bottom end of the hot glue runner (14) is provided with three hot glue nozzles (15) corresponding to the three bolt-fitted injection cavities. 4) is internally provided with three heating rings (19) and electric heating wires (18) fitted with hot glue nozzles (15). The electric heating wires (18) are connected to each heating ring (19) through three contacts. An internal electrical socket (16) is provided at the corner of the hot glue flow channel (14). A terminal block (17) is plugged into the internal part of the internal electrical socket (16). An external power supply socket (6) is embedded in the opening on one side of the injection upper mold body (1). A plug limiting bracket (7) is provided on the outside of the external power supply socket (6). The internal part of the external power supply socket (6) is connected to the wiring of the terminal block (17).

2. The injection mold structure for processing plastic bolt sleeves according to claim 1, characterized in that: The bottom plate (3) of the lower mold is provided with three pneumatic ejector rods (11) at its top, and the heads of the three pneumatic ejector rods (11) correspond to three bolt sleeve injection cavities.

3. The injection mold structure for processing plastic bolt sleeves according to claim 1, characterized in that: A fan (9) is embedded on the back of the injection mold (2). Each of the three bolt sleeves has an air ring (12) embedded inside the injection mold (2) at the outer ring of the injection cavity. The three air rings (12) are connected to each other and connected to the air outlet of the fan (9) through an air passage.

4. The injection mold structure for processing plastic bolt sleeves according to claim 3, characterized in that: The sides of the air rings (12) located on both sides are equipped with exhaust channels (13), which extend to the front of the injection mold lower mold body (2) and are provided with exhaust vents (8).

5. The injection mold structure for processing plastic bolt sleeves according to claim 1, characterized in that: Both sides of the upper injection mold (1) are equipped with mold opening lifting rings (5).

6. The injection mold structure for processing plastic bolt sleeves according to claim 3, characterized in that: The back of the blower (9) is provided with an air intake fan (10) that is connected to the injection molding lower mold body (2).

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