Heat preservation device for compression mold of commutator
By introducing an insulation box and heating plate into the commutator compression mold, the problem of mold temperature drop was solved, achieving mold temperature stability and automated operation, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
Commutator compression molds are easily exposed to room temperature during switching, which leads to a rapid drop in temperature, increases product defect rate, prolongs production cycle, reduces production efficiency, and increases production cost.
The mold insulation device includes a pressure plate, an insulation box, a heating plate, and an ejection mechanism. The pressure plate is driven by a cylinder to descend and form a closed space with the heating plate to maintain a stable mold temperature. The ejection mechanism automatically ejects the mold to reduce heat loss.
It effectively prevents mold temperature drop, reduces product defect rate, shortens production cycle, improves production efficiency, reduces costs, and eliminates the need for employees to wait for the equipment to reheat.
Smart Images
Figure CN224116568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of commutator compression molding technology, and in particular to a commutator compression molding heat preservation device. Background Technology
[0002] Commutator compression molding is a molding tool specifically used to manufacture motor commutators. It uses a compression molding process to inject plastic or composite materials into the mold cavity under high temperature and high pressure, and after cooling and solidification, it forms a commutator product with a specific structure and size.
[0003] However, in the aforementioned existing technologies, during the compression molding production of commutators, the mold is easily exposed to room temperature during the switching process, causing the mold temperature to drop rapidly. This not only increases the defect rate of products but also prolongs the production cycle and reduces production efficiency. At the same time, the time wasted by employees waiting for the equipment to reheat also increases production costs. Utility Model Content
[0004] The purpose of this utility model is to provide a commutator compression molding mold heat preservation device, which aims to solve the technical problem that in the existing technology, during the compression production of commutators, the mold is easily exposed to room temperature during the switching process, which leads to a rapid drop in mold temperature. This not only increases the defect rate of products, but also prolongs the production cycle and reduces production efficiency. At the same time, the time wasted by employees waiting for the equipment to reheat also increases production costs.
[0005] To achieve the above objectives, this utility model employs a commutator compression mold heat preservation device, comprising a pressure plate and a heat preservation box. A cylinder is disposed above the heat preservation box, and the output end of the cylinder extends into the heat preservation box. An opening is provided on the front end face of the heat preservation box. A base plate is disposed below the heat preservation box, a heat insulation plate is disposed above the base plate, and a heating plate is disposed above the heat insulation plate. The pressure plate is fixedly connected to the cylinder and is located at the output end of the cylinder, and the pressure plate also extends directly above the heating plate.
[0006] The lower end face of the pressure plate is provided with a baffle plate, and the upper end face of the heating plate has a baffle groove, with the baffle plate and the baffle groove being aligned.
[0007] The heat preservation box and the heating plate are provided with multiple positioning rods, and the multiple positioning rods all pass through the four bottom corners of the pressure plate.
[0008] The base plate has a pad at one end, which is located at the opening and is level with the heating plate.
[0009] The commutator compression mold insulation device further includes an ejection mechanism, which includes an ejection plate and an ejection cylinder. The ejection plate is fixedly connected to the ejection cylinder and is located at the output end of the ejection cylinder. The ejection plate is also slidably connected to the insulation box and is located inside the insulation box and is positioned towards the horizontal plane of the heating plate. The ejection cylinder is fixedly connected to the insulation box and is located outside the insulation box.
[0010] The ejection mechanism further includes two guide rods, which are fixedly connected to the ejection plate and located at both ends of the ejection plate. The two guide rods also pass through the outside of the insulation box.
[0011] This utility model discloses a commutator compression mold heat preservation device, comprising a pressure plate and a heat preservation box. A cylinder is disposed above the heat preservation box, and the output end of the cylinder extends into the heat preservation box. An opening is provided on the front end face of the heat preservation box. A base plate is disposed below the heat preservation box, a heat insulation plate is disposed above the base plate, and a heating plate is disposed above the heat insulation plate. The pressure plate is fixedly connected to the cylinder and is located at the output end of the cylinder, and the pressure plate also extends directly above the heating plate. By setting up the structure of the heat preservation box, heating plate, and pressure plate, the mold maintains a constant temperature during the switching process, preventing an increase in product defect rate due to temperature drop. At the same time, it shortens the production cycle, improves production efficiency, and eliminates the need for employees to wait for the equipment to reheat for a long time, reducing time waste and thus reducing production costs. This design can increase output by up to 16.7% and reduce the product defect rate caused by air holes. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a three-dimensional view of the present invention.
[0014] Figure 2 This is the front view of this utility model.
[0015] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.
[0016] Figure 4 This is the utility model Figure 3 A cross-sectional view along the BB line.
[0017] 1-Pressure plate, 2-Insulation box, 3-Cylinder, 4-Opening, 5-Bottom plate, 6-Insulation plate, 7-Heating plate, 8-Enclosure plate, 9-Enclosure groove, 10-Positioning rod, 11-Pad plate, 12-Ejection plate, 13-Ejection cylinder, 14-Guide rod. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0019] Please see Figures 1-4 This utility model provides a commutator compression mold heat preservation device, including a pressure plate 1 and a heat preservation box 2. A cylinder 3 is arranged above the heat preservation box 2, and the output end of the cylinder 3 extends into the heat preservation box 2. An opening 4 is provided on the front end face of the heat preservation box 2. A bottom plate 5 is arranged below the heat preservation box 2. A heat insulation plate 6 is arranged above the bottom plate 5. A heating plate 7 is arranged above the heat insulation plate 6. The pressure plate 1 is fixedly connected to the cylinder 3 and is located at the output end of the cylinder 3. The pressure plate 1 also extends directly above the heating plate 7.
[0020] In this embodiment, by setting up the structure of the heat preservation box 2, the cylinder 3, and the heating plate 7, constant temperature insulation of the compression mold is achieved, which effectively avoids the problem of temperature drop caused by the mold being exposed to room temperature during the switching process. This not only reduces the product defect rate caused by temperature changes, but also shortens the production cycle, improves production efficiency, and reduces the time wasted by employees waiting for the equipment to heat up, thereby reducing production costs.
[0021] Furthermore, the lower end face of the pressure plate 1 is provided with a baffle plate 8, the upper end face of the heating plate 7 is provided with a baffle groove 9, and the baffle plate 8 and the baffle groove 9 are aligned.
[0022] In this embodiment, the arrangement of the baffle plate 8 and the baffle groove 9 can help reduce heat loss, thereby improving the heating effect on the compression mold.
[0023] Furthermore, a plurality of positioning rods 10 are provided between the heat preservation box 2 and the heating plate 7, and the plurality of positioning rods 10 all penetrate through the four bottom corners of the pressure plate 1.
[0024] In this embodiment, the positioning rod 10 not only enhances the structural stability of the entire device, but also ensures the accuracy of the pressure plate 1 during its up-and-down movement.
[0025] Furthermore, a pad 11 is provided at one end of the base plate 5, and the pad 11 is also located at the opening 4, and the pad 11 and the heating plate 7 are kept at the same horizontal plane.
[0026] In this embodiment, the pad 11 and the heating plate 7 are designed to be on the same horizontal plane. This design makes the mold more stable during placement and removal, and reduces the impact and vibration caused by height difference.
[0027] Furthermore, the commutator compression mold insulation device also includes an ejection mechanism, which includes an ejection plate 12 and an ejection cylinder 13. The ejection plate 12 is fixedly connected to the ejection cylinder 13 and is located at the output end of the ejection cylinder 13. The ejection plate 12 is also slidably connected to the insulation box 2 and is located inside the insulation box 2 and is positioned towards the horizontal plane of the heating plate 7. The ejection cylinder 13 is fixedly connected to the insulation box 2 and is located outside the insulation box 2.
[0028] In this embodiment, this design allows the mold to be automatically ejected after compression molding, eliminating the need for manual removal, which greatly improves production efficiency and ease of operation, while also reducing errors and safety hazards that may be caused by manual operation.
[0029] Furthermore, the ejection mechanism also includes two guide rods 14, which are fixedly connected to the ejection plate 12 and located at both ends of the ejection plate 12, and the two guide rods 14 also pass through the outside of the insulation box 2.
[0030] In this embodiment, the guide rod 14 provides precise guidance for the movement of the ejector plate 12, ensuring the stability and accuracy of the mold during the ejection process, and further improving production efficiency and product quality.
[0031] When using this utility model, the mold to be compressed is first placed on the heating plate 7. The heating plate 7 is separated from the base plate 5 by the heat insulation plate 6 to reduce heat loss and maintain the required temperature of the mold. Then, the cylinder 3 drives the pressure plate 1 to descend. The baffle plate 8 on the lower end face of the pressure plate 1 is inserted into the baffle groove 9 for alignment, so that the baffle plate 8 and the heating plate 7 form a closed space, thereby reducing heat loss and improving the heating effect. The pressure plate 1 continues to descend to perform the compression molding operation on the mold. After compression molding is completed, the ejection cylinder 13 drives the ejection plate 12 to move. The ejection plate 12 is guided by the guide... Guided by rod 14, the mold is smoothly pushed out of the heating plate 7 and taken out through the opening 4 at the front end of the insulation box 2. At the same time, the design of the insulation box 2 reduces heat loss of the mold during the switching process, ensuring stable mold temperature, improving production efficiency and product quality. This solves the technical problem that in the compression molding process of commutator, the mold is easily exposed to room temperature during the switching process, causing the mold temperature to drop rapidly. This not only increases the defect rate of products, but also prolongs the production cycle and reduces production efficiency. At the same time, the time wasted by employees waiting for the equipment to reheat also increases production costs.
[0032] In this invention, existing compression molding molds only have one intermediate mold plate. The holding time for QB-type products is 300s, the employee's equipment operation time is 60s, and the product placement time is 30s. If two machines are operated, subtracting the 10s walking time, 30s of waiting time will be saved, i.e., the equipment waits for the workers. The current design incorporates a preheating structure. After the employee finishes operating the first intermediate mold, the second intermediate mold can be pre-placed, reducing waiting time and improving production efficiency. On the other hand, the intermediate mold is kept warm. When the employee operates the mold, the holding time ends, and the mold frame changes from a closed state to an open state. The intermediate mold will cool down rapidly upon contact with air. This design ensures that the intermediate mold does not lose temperature, preventing air bubbles in the product and reducing quality problems.
[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A commutator compression mold heat preservation device, characterized in that, The device includes a pressure plate and an insulation box. A cylinder is installed above the insulation box, and the output end of the cylinder extends into the insulation box. An opening is provided on the front face of the insulation box. A base plate is provided below the insulation box. A heat insulation plate is provided above the base plate. A heating plate is provided above the heat insulation plate. The pressure plate is fixedly connected to the cylinder and is located at the output end of the cylinder. The pressure plate also extends directly above the heating plate.
2. The commutator compression mold heat preservation device as described in claim 1, characterized in that, The lower end face of the pressure plate is provided with a baffle plate, and the upper end face of the heating plate has a baffle groove, and the baffle plate is aligned with the baffle groove.
3. The commutator compression mold heat preservation device as described in claim 2, characterized in that, Multiple positioning rods are provided between the heat preservation box and the heating plate, and all of the positioning rods pass through the four bottom corners of the pressure plate.
4. The commutator compression mold heat preservation device as described in claim 3, characterized in that, A pad is provided at one end of the base plate, the pad is also located at the opening, and the pad and the heating plate are kept at the same horizontal plane.
5. The commutator compression mold heat preservation device as described in claim 4, characterized in that, The commutator compression mold insulation device also includes an ejection mechanism, which includes an ejection plate and an ejection cylinder. The ejection plate is fixedly connected to the ejection cylinder and is located at the output end of the ejection cylinder. The ejection plate is also slidably connected to the insulation box and is located inside the insulation box and is positioned towards the horizontal plane of the heating plate. The ejection cylinder is fixedly connected to the insulation box and is located outside the insulation box.
6. The commutator compression mold heat preservation device as described in claim 5, characterized in that, The ejection mechanism also includes two guide rods, which are fixedly connected to the ejection plate and located at both ends of the ejection plate. The two guide rods also pass through the outside of the insulation box.