Hot runner junction box structure of injection mold

Abstract

The utility model relates to a hot runner system of an injection mold, in particular to a hot runner junction box structure of the injection mold. The device comprises a template and a junction box, the template is provided with a wire slot and a first mounting slot for accommodating the junction box, the wire slot is communicated with the first mounting slot, and the template is provided with a cable storage slot for placing a folding cable; the junction box is movably installed in the first installation groove and can be detachably fixed through screws. In addition, rebounding devices fixed to the template are further arranged, the junction box is fixed through sliding rods of the rebounding devices, the number of the rebounding devices is two, the rebounding devices are located on the two sides of the junction box, and the template is provided with corresponding second installation grooves and sliding grooves to be matched with installation and movement of the rebounding devices. Meanwhile, the device further comprises a hoop used for fixing the cable, and the template is provided with a positioning groove for fixing the position of the hoop. According to the invention, the installation and maintenance operations of the junction box are simplified, the space utilization rate and reliability are improved, and the cable damage risk is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to a hot runner system of an injection mold, in particular to a hot runner junction box structure of an injection mold. BACKGROUND

[0002] Hot runner technology plays a crucial role in the injection molding process, which uniformly injects molten plastic particles into the mold cavity through a heating assembly system, ensuring product quality and production efficiency. With the continuous development of manufacturing industry, the requirements for injection molds are becoming higher and higher, especially for the efficient production and high quality of complex structural parts. In order to meet these needs, hot runner technology is constantly improving, not only improving production speed, but also significantly reducing waste, bringing huge economic benefits to enterprises. In the existing injection mold, in order to realize the temperature control of the hot runner system, a junction box is usually used to connect the temperature control box to improve the integration and safety of the wire system. The common practice is to install the junction box outside the injection mold. This installation method can conveniently maintain the junction box, and also effectively protects the internal wiring from the influence of the external environment. However, in the actual production process, due to frequent mold repair and machine operation, the externally installed junction box is easy to be damaged by impact, resulting in the junction box falling off or breaking. This not only affects the normal operation of the production line, but also requires additional time and cost for maintenance. In addition, serious damage may cause a short circuit of the wire, causing the hot runner system to malfunction or even causing safety accidents to the operators. Although the traditional junction box installation method solves the integration and protection problems of the wire system to some extent, there are still obvious deficiencies in actual application. Especially in the process of frequent mold repair and machine operation, the junction box is easy to be damaged by impact, which affects the production efficiency and equipment safety. Therefore, how to effectively prevent the junction box from being damaged in the exposed state has become a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The application aims to overcome the above technical problems and provides a hot runner junction box structure of an injection mold.

[0004] The hot runner terminal box structure of an injection mold comprises a mold plate and a terminal box, the mold plate is provided with a wire slot and a first installation slot for accommodating the terminal box, the wire slot is communicated with the first installation slot, and a cable storage groove for placing the folded cable is arranged at one end of the wire slot close to the first installation slot; and the terminal box is movably installed in the first installation slot. By adopting the above technical scheme, the hot runner terminal box is embedded in the mold plate, thereby avoiding damage caused by external impact and improving the safety and reliability of the terminal box. Meanwhile, the design of the wire slot and the cable storage groove facilitates the management and arrangement of the cable, reduces the disorder of the cable, and improves the cleanliness and maintenance convenience of the whole system. The terminal box is movably installed, and the terminal box can be taken out of the cable storage groove during maintenance, thereby facilitating operation. Preferably, the terminal box is detachably fixed in the installation slot of the terminal box by screws. By adopting the above technical scheme, the terminal box is detachably fixed in the installation slot by screws, thereby realizing stable installation of the terminal box and facilitating maintenance and replacement. This design avoids damage caused by frequent external impact on the terminal box, improves the service life and reliability of the terminal box, reduces the downtime of the production line caused by the failure of the terminal box, and improves the production efficiency. Preferably, the structure further comprises a rebounder, the rebounder is fixed on the mold plate, and the terminal box is fixed on the end of the sliding rod of the rebounder. By adopting the above technical scheme, the rebounder is fixed on the mold plate, and the terminal box is fixed on the end of the sliding rod of the rebounder. The rebounder is usually used on a hidden cabinet door, and can be switched between the pop-up and retraction states by pressing. The cable and the storage box can be conveniently taken out by pressing, and this design facilitates maintenance and replacement of the terminal box, thereby improving the operation convenience. Preferably, two rebounders are arranged on both sides of the terminal box. By adopting the above technical scheme, two rebounders are arranged on both sides of the terminal box, which can effectively enhance the stability of the terminal box during use and avoid the problem of tilting or shaking of the terminal box caused by uneven force on a single rebounder. Meanwhile, the double-rebounder design can ensure that the terminal box can quickly reset when the cable is pulled, reduce the influence on the internal circuit of the terminal box, and further improve the safety and reliability of the whole hot runner system. Preferably, a second installation slot for installing the rebounder is arranged on the mold plate, and the rebounder is fixed in the second installation slot by screws. By adopting the above technical scheme, the rebounder can be installed on the mold plate of the injection mold, and the rebounder can be firmly fixed on the mold plate by using the second installation slot. This can ensure that the terminal box is stable and reliable during use, and reduce the risk of damage caused by external impact. Meanwhile, this design also facilitates maintenance and replacement of the terminal box, thereby improving the overall safety and reliability of the equipment. Preferably, a sliding groove is arranged on the mold plate and is slidably connected with the sliding rod of the rebounder, and the sliding groove is communicated with the second installation slot and the first installation slot.By adopting the technical scheme, the sliding groove is arranged on the template and slidably connected with the sliding rod of the rebounder, and the sliding groove is communicated with the second mounting groove and the first mounting groove. This design enables the junction box to move smoothly inside the template, avoids damage caused by external impact, and improves the service life and reliability of the junction box. Preferably, the junction box is fixed on the end of the sliding rod of the rebounder by screws. By adopting the technical scheme, the junction box is stably fixed on the end of the sliding rod of the rebounder, ensuring the stability and reliability of the junction box during use, and avoiding potential safety hazards caused by loose or falling junction box. At the same time, this design also facilitates the maintenance and replacement of the junction box, improving the operability and service life of the equipment. Preferably, the clamp for fixing the cable is further provided, and the template is provided with a positioning groove for fixing the position of the clamp; the positioning groove is arranged on the track of the wire groove. By adopting the technical scheme, the cable can be effectively fixed, avoiding abrasion or loosening of the cable due to movement or vibration, and further improving the safety and reliability of the junction box structure. At the same time, the positioning groove is arranged on the track of the wire groove, so that the position of the clamp is more accurate, ensuring that the cable layout is neat and orderly, and facilitating maintenance and repair.

[0005] In summary, the present application has at least one of the following beneficial technical effects: 1. By embedding the junction box in the first mounting groove of the template, the junction box is prevented from being exposed, thereby preventing the risk of collision and damage of the hot runner junction box during the forming frame mold and maintenance, improving the reliability and safety of the equipment; 2. The wire groove is communicated with the first mounting groove, and the cable receiving groove is arranged at one end of the wire groove close to the first mounting groove, facilitating folding and managing the cable, reducing cable winding and abrasion, and prolonging the service life of the cable; 3. The junction box is movably mounted in the first mounting groove, which can be disassembled and adjusted as needed, facilitating maintenance and repair, reducing downtime caused by junction box damage, and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application;

[0007] Figure 2 is a schematic diagram of the template structure of embodiment 1 of the present application;

[0008] Figure 3 is a schematic diagram of the template structure in the working state of embodiment 2 of the present application (junction box retracted);

[0009] Figure 4 is a schematic diagram of the template structure in the maintenance state of embodiment 2 of the present application (junction box popped out).

[0010] Reference signs: 1, template; 11, wire slot; 12, first installation slot; 13, cable storage slot; 14, second installation slot; 15, sliding groove; 16, positioning groove; 2, junction box; 3, rebounder. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings. Figures 1-4 The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0012] The inventor of the present application found that the conventional hot runner junction box 2 is installed outside the injection mold, and due to frequent mold repair and production on and off the machine during the injection molding process, the junction box 2 often collides and is damaged, resulting in the junction box 2 falling off and breaking, and even causing a short circuit of the line, burning out the hot runner system or causing the risk of electric shock to the operator. Therefore, the present application mainly adopts the following scheme: a hot runner junction box structure of an injection mold, comprising a template 1 and a junction box 2, the template 1 is provided with a wire slot 11 and a first installation slot 12 for accommodating the junction box 2, the wire slot 11 is in communication with the first installation slot 12, and the wire slot 11 is provided with a cable storage slot 13 for placing folded cables at one end close to the first installation slot 12; the junction box 2 is movably installed in the first installation slot 12. By embedding the junction box 2 into the template 1, damage to the exposed part due to mold repair and on-off machine operation is avoided, thereby improving the service life and safety of the junction box 2. EMBODIMENT

[0013] Reference Figure 1 and Figure 2 The hot runner junction box 2 structure of the injection mold provided by the embodiments of the present application comprises a template 1 and a junction box 2, the template 1 is provided with a wire slot 11 and a first installation slot 12 for accommodating the junction box 2, the wire slot 11 is in communication with the first installation slot 12, and the wire slot 11 is provided with a cable storage slot 13 for placing folded cables at one end close to the first installation slot 12; the junction box 2 is movably installed in the first installation slot 12. By embedding the junction box 2 into the template 1, damage to the exposed part due to mold repair and on-off machine operation is avoided, thereby improving the service life and safety of the junction box 2.

[0014] Specifically, the template 1 can be made of high-strength aluminum alloy material, which has good high-temperature resistance and impact resistance. The first installation slot 12 can be designed according to the actual size of the junction box 2, for example, the length, width and height are 100 mm, 80 mm and 50 mm respectively. The width of the wire slot 11 is generally 20 mm, and the depth is 10 mm, so as to ensure that the cable can pass smoothly.

[0015] The cable storage groove 13 can be designed in a rectangular shape with a width of about 30 mm to facilitate the folding storage of the cable. The communication part between the wire groove 11 and the first mounting groove 12 can be designed in a smooth transition form to reduce the friction loss of the cable when passing through.

[0016] In addition, a layer of flexible rubber pad can be added in the wire groove 11 to further protect the cable from wear and tear. The clamp can be made of stainless steel material, which has strong corrosion resistance and durability.

[0017] The inner diameter of the clamp can be adjusted according to the actual diameter of the cable to ensure firm clamping. The positioning groove 16 can be designed in a T shape or a U shape to match different shapes of the clamp, so that it can be accurately fixed at the predetermined position. The positioning groove 16 is arranged on the track of the wire groove 11, i.e. extending along the direction of the wire groove 11, so that the cable can be effectively fixed throughout the path. In order to avoid excessive indentation on the cable, a layer of soft rubber pad can be added between the clamp and the cable, which can reduce the contact pressure and improve the shockproof effect. The clamp can be of two types: manual tightening or self-locking. The manual tightening clamp needs to be tightened by hand, although the operation is slightly cumbersome, but the fixing effect is very reliable; the self-locking clamp uses elastic buckle to realize quick locking, which is simple and convenient to operate, suitable for large-scale production.

[0018] The implementation principle of the embodiment is that by embedding the junction box 2 into the mold plate 1, the risk of external impact is reduced, and the service life of the junction box 2 is prolonged. At the same time, the design of the wire groove 11 enables the cable to be arranged in order inside the mold plate 1, avoiding damage to the cable by the external environment. The clamp and the positioning groove 16 for fixing the cable further enhance the stability of the cable and improve the safety and reliability of the system. The whole structure is simple and reliable, easy to process and assemble, and suitable for various complex injection mold application scenarios. Embodiment

[0019] Reference Figure 3 and Figure 4 The difference between the embodiment and the above-mentioned embodiments is that a rebounder 3 is added, the rebounder 3 is fixed on the mold plate 1, and the junction box 2 is fixed on the end of the sliding rod of the rebounder 3. This design can make the junction box 2 automatically pop out when it needs to be repaired, which is convenient for quick inspection and maintenance. Two rebounders 3 are provided, and are arranged on both sides of the junction box 2.

[0020] A second mounting groove 14 for mounting the rebounder 3 is provided on the mold plate 1; the rebounder 3 is fixed in the second mounting groove 14 by screws. A sliding groove 15 is provided on the mold plate 1, which slidably cooperates with the sliding rod of the rebounder 3, and the sliding groove 15 communicates the second mounting groove 14 and the first mounting groove 12. The junction box 2 is fixed on the end of the sliding rod of the rebounder 3 by screws.

[0021] Specifically, the rebounder 3 can be selected from spring type or pneumatic type. The spring type rebounder 3 has the advantages of simple structure, low cost, but the rebounding force is relatively small; the pneumatic rebounder 3 has greater rebounding force, and is more suitable for the heavier terminal box 2. Regardless of the type of rebounder 3, the pre-tightening force can be adjusted to adapt to terminal boxes 2 of different sizes and weights.

[0022] The rebounder 3 is fixed on the template 1 in a screw fixing manner. Specifically, a second mounting groove 14 is formed on the template 1, and the rebounder 3 is fixed in the second mounting groove 14 by screws. The size of the second mounting groove 14 should be slightly larger than the main body of the rebounder 3, so as to ensure the stability and reliability after installation. In order to smoothly pop out the terminal box 2, a sliding groove 15 is formed on the template 1, which is in sliding cooperation with the sliding rod of the rebounder 3. The sliding groove 15 is connected with the second mounting groove 14 and the first mounting groove 12. The cross-sectional shape of the sliding groove 15 can be designed as a rectangle or a trapezoid, and the surface is smooth without burrs, so as to reduce the sliding resistance.

[0023] The terminal box 2 is fixed on the end of the sliding rod of the rebounder 3 by screws, so that the terminal box 2 can remain stable after being popped out and will not shake randomly. Of course, if more flexible operation is needed, magnetic or other detachable connection methods can be used. The clamp can be made of stainless steel, which has strong corrosion resistance and durability. The inner diameter of the clamp can be adjusted according to the actual diameter of the cable to ensure firm clamping.

[0024] The implementation principle of the embodiment is that by adding the rebounder 3, the automatic pop-out function of the terminal box 2 is realized, which greatly simplifies the maintenance process and saves time and labor cost. At the same time, the design of the sliding groove 15 ensures the stability and accuracy of the terminal box 2 during the pop-out process, avoiding accidental falling or jamming. The clamp for fixing the cable and the positioning groove 16 further enhance the stability of the cable and improve the safety and reliability of the system. The whole structure is reasonable and compact, which meets the functional requirements, and also takes into account the economy and practicality.

[0025] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hot runner manifold block structure for an injection mold, characterized by: The utility model relates to a cable distribution box, including template (1) and terminal box (2), the template (1) is set up with the first installation groove (12) of accommodating terminal box (2) on the line slot (11), the line slot (11) with first installation groove (12) intercommunication, the line slot (11) is close to the cable storage groove (13) of the cable of placing folding cable and is set up with the first installation groove (12) one end, terminal box (2) is movably installed in the first installation groove (12).

2. The hot runner manifold block structure of claim 1, wherein: The terminal box (2) is detachably fixed in the installation groove of the terminal box (2) by a screw.

3. The hot runner manifold block structure of claim 1, wherein: It further includes a rebounder (3), the rebounder (3) is fixed on the template (1), and the terminal box (2) is fixed on the end of the sliding rod of the rebounder (3).

4. The hot runner manifold block structure of claim 3, wherein: The rebounder (3) is provided with two, and is respectively arranged on both sides of the terminal box (2).

5. The hot runner manifold block structure of claim 4, wherein: The template (1) is provided with a second installation groove (14) for installing the rebounder (3); and the rebounder (3) is fixed in the second installation groove (14) by a screw.

6. The hot runner manifold block structure of claim 5, wherein: The template (1) is provided with a sliding groove (15) matched with the sliding rod of the rebounder (3); and the sliding groove (15) is communicated with the second installation groove (14) and the first installation groove (12).

7. The hot runner manifold block structure of claim 5, wherein: The terminal box (2) is fixed on the end of the sliding rod of the rebounder (3) by a screw.

8. The hot runner manifold block structure of any of claims 1-7, wherein: It further includes a clamp for fixing the cable, and the template (1) is provided with a positioning groove (16) for fixing the position of the clamp; and the positioning groove (16) is arranged on the track of the line slot (11).

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