A type of seat molding die with secondary ejection
By designing a seat molding die with a secondary ejection structure and cooling water channels, the problem of demolding complex seat structures was solved, enabling smooth demolding and high-quality seat processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NOVAH SHANGHAI OFFICE SYST
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-26
AI Technical Summary
Existing seat molding dies have difficulty handling seats with complex structures such as bent shapes, grooves, and inverted shapes during demolding, resulting in demolding difficulties.
Design a seat molding die with secondary ejection, adopting a structure in which molding inserts and top plates cooperate, and setting cooling water channels in the die to meet the cooling requirements of complex structures. Combined with inclined ejector and ejection cylinder, the seat can be successfully demolded.
This technology enables smooth demolding of seats with complex structures such as bends and grooves, improving the demolding efficiency of the mold and the processing quality of the seats.
Smart Images
Figure CN224276070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical technology, specifically a seat forming mold with secondary ejection. Background Technology
[0002] Currently, in seat molding, the molded part is demolded by moving up and down. However, because the seat has a bent shape and has grooves and inverted structures on the back, the plastic seat cannot be easily demolded. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, this utility model provides a seat forming mold with secondary ejection.
[0004] To achieve the above objectives, a seat molding die with secondary ejection is designed, including a front mold and a rear mold. The front mold is located above the rear mold. A hot runner fixing plate is connected to the upper end of the front mold. A front template is connected to the upper end of the hot runner fixing plate. A hot runner injection port is located at the upper end of the front template. A molding pressure plate is located on one side of the lower end of the front mold. A molding insert is located on one side of the molding pressure plate. A pad is located at the upper end of the rear mold. A molding surface one that mates with the molding pressure plate is located on one side of the pad. A molding surface two that mates with the molding insert is located on the other side of the pad. Several cooling water channels one are located at the upper and lower ends of molding surfaces one and two, respectively. Top blocks are located on the front and rear sides of the molding insert, respectively. A top block cylinder is connected to the upper end of the top block. Several inclined tops are located on one side of the molding insert. One end of the inclined top is connected to a top plate. One side of the top plate is connected to an ejection cylinder.
[0005] A guide post is provided between the molding insert and the front mold, and a guide sleeve is fitted on the outside of the guide post.
[0006] The molded insert is provided with several cooling water channels.
[0007] A protrusion is located near the center of the pad, and the protrusion has three cooling water channels.
[0008] The lower end of the hot runner glue inlet is connected to a glue injection tube, and the lower end of the glue injection tube is provided with a glue injection nozzle, the position of which matches the position of the protrusion.
[0009] The front and rear molds are equipped with several cooling water channels.
[0010] The hot runner fixing plate is provided with an injection molding machine pressure plate groove on its side.
[0011] The front mold and the rear mold are locked together by a locking buckle.
[0012] The front mold and the rear mold are equipped with lifting rings on one side.
[0013] A guide post 2 is provided between the front mold and the rear mold, and a guide sleeve 2 is sleeved on the outside of the guide post 2.
[0014] Compared with the prior art, this utility model uses a secondary ejection structure in which the molding insert and the top plate cooperate to ensure that the seat can be demolded smoothly after molding, and the cooling water channels are arranged according to the structure and strength of the seat to be processed. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a structural schematic diagram from another perspective of the present invention.
[0017] Figure 3 This is a schematic diagram of the front mold of this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the fourth cooling water channel in the front mold of this utility model.
[0019] Figure 5 This is a front view of the front mold of this utility model.
[0020] Figure 6 This is a bottom view of the front mold of this utility model.
[0021] Figure 7 This is a structural schematic diagram of the front mold of this utility model from another perspective.
[0022] Figure 8 This is a schematic diagram of the structure of the present invention, which removes the front mold and its upper structure.
[0023] Figure 9 This is a schematic diagram of the three cooling water channels of this utility model.
[0024] Figure 10 This is a schematic diagram of the structure of the glue injection nozzle of this utility model.
[0025] Figure 11 This is a schematic diagram of the structure of the rear mold of this utility model.
[0026] Figure 12 This is a schematic diagram of the structure of the fourth cooling water channel in the rear mold of this utility model.
[0027] Figure 13 This is a schematic diagram of the structure of the molded insert and the top plate of this utility model.
[0028] Figure 14 This is a structural schematic diagram of the molded insert and top plate of this utility model from another perspective.
[0029] Figure 15 This is a schematic diagram of the structure of two cooling water channels inside the molded insert of this utility model.
[0030] Figure 16 This is a schematic diagram of the structure of the top plate of this utility model. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings.
[0032] like Figures 1 to 16 As shown, a front mold 2 is provided above the rear mold 1. The upper end of the front mold 2 is connected to a hot runner fixing plate 3. The upper end of the hot runner fixing plate 3 is connected to a front template 4. The upper end of the front template 4 is provided with a hot runner injection port 5. A molding pressure plate 6 is provided on one side of the lower end of the front mold 2. A molding insert 7 is provided on one side of the molding pressure plate 6. A pad 8 is provided on the upper end of the rear mold 1. A molding surface 9 that mates with the molding pressure plate 6 is provided on one side of the pad 8. A molding surface 10 that mates with the molding insert 7 is provided on the other side of the pad 8. Several cooling water channels 11 are provided at the upper and lower ends of the molding surface 9 and the molding surface 10. Top blocks 15 are provided on the front and rear sides of the molding insert 7. The upper end of the top block 15 is connected to a top block cylinder 16. Several inclined tops 17 are provided on one side of the molding insert 7. One end of the inclined top 17 is connected to a top plate 30. One side of the top plate 30 is connected to an ejector cylinder 18. Specifically, one end of the inclined top 17 is connected to the top plate 30, and the other end of the inclined top 17 passes through the forming insert 7. When the ejector cylinder 18 ejects the top plate 30, the other end of the inclined top 17 passes through the forming insert 7 and is located outside the forming insert 7 to eject the processed seat.
[0033] A guide post 19 is provided between the molding insert 7 and the front mold 2. A guide sleeve 1 is fitted on the outside of the guide post 19 to play a guiding role.
[0034] The molding insert 7 has several cooling water channels 12. In actual use, the area between the molding insert 7 and the molding surface 10 forms part of the seat to be molded. One side surface of the molding insert 7 also has a machining surface for machining the grooves, undercuts, and other structures on the back of the seat. Therefore, several cooling water channels 12 are provided inside the molding insert 7 to cool the seat structure machined near the machining surface of the molding insert 7.
[0035] A protrusion 21 is located near the center of the pad 8, and the protrusion 21 is equipped with a cooling water channel 3 13. In actual use, the protrusion 21 is used to process the curved surface near the parting line of the seat. Since the curved surface is located at the connection between the backrest and the seat, and considering the strength of the seat, the plastic here is thicker than in other areas. Therefore, a special cooling water channel 3 needs to be set for the protrusion 21 to ensure the processing effect of the structure at the connection of the seat.
[0036] The lower end of the hot runner injection port 5 is connected to the injection tube 22, and the lower end of the injection tube 22 is provided with an injection nozzle 23. The position of the injection nozzle 23 matches the position of the protrusion 21. In actual use, the glue enters from the hot runner injection port 5, passes through the injection tube 22 and the injection nozzle 23 to reach the protrusion 21, and enters the molding surfaces on both sides of the protrusion 21 under the action of gravity.
[0037] The front mold 2 and the rear mold 1 are equipped with several cooling water channels 14 to improve the cooling effect.
[0038] The hot runner fixing plate 3 has an injection molding machine pressure plate groove 24 on its side. In actual use, the injection molding machine pressure plate groove 24 cooperates with the injection molding machine pressure plate to press the hot runner fixing plate 3 tightly, ensuring the injection molding effect.
[0039] The front mold 2 and the rear mold 1 are locked together by a locking buckle 25. During the mold closing process, the front mold 2 and the rear mold 1 are locked to prevent the mold from shifting during processing and to ensure the quality of the processed seat.
[0040] The front mold 2 and the rear mold 1 are equipped with lifting rings 26 on one side, which facilitates the movement of the molds in conjunction with external equipment.
[0041] A guide post 27 is provided between the front mold 2 and the rear mold 1, and a guide sleeve 28 is fitted on the outside of the guide post 27 to provide guidance. On the other side of the front mold 2, there is an avoidance hole 29 that mates with the top plate 30 to ensure that the movement of the top plate 30 is not interfered with.
[0042] In use, this invention is installed on an injection molding machine. The front mold 2 and the rear mold 1 are closed. Glue enters from the hot runner injection port 5 and passes through the injection tube 22 and injection nozzle 23 to reach the protrusion 21. Under the action of gravity, the glue enters the molding surfaces on both sides of the protrusion 21. The molding plate 6 cooperates with molding surface 9, and the molding insert 7 cooperates with molding surface 10 to process the required seat shape. After processing, the rear mold 1 is withdrawn, the ejector cylinder 16 ejects, and the ejector block 15 drives the molding insert 7 to lift the processed seat. Then, the ejector cylinder 18 ejects the top plate 30, and the inclined ejector 17 ejects the processed seat.
Claims
1. A seat forming mold with secondary ejection, comprising a front mold and a rear mold, characterized in that: The rear mold (1) is provided with a front mold (2) above it. The upper end of the front mold (2) is connected to a hot runner fixing plate (3). The upper end of the hot runner fixing plate (3) is connected to a front template (4). The upper end of the front template (4) is provided with a hot runner injection port (5). A molding pressure plate (6) is provided on one side of the lower end of the front mold (2). A molding insert (7) is provided on one side of the molding pressure plate (6). A pad (8) is provided on the upper end of the rear mold (1). A molding surface (9) that mates with the molding pressure plate (6) is provided on one side of the pad (8). 8) On the other side, there is a second molding surface (10) that cooperates with the molding insert (7). Several cooling water channels (11) are provided at the upper and lower ends of the first molding surface (9) and the second molding surface (10). Top blocks (15) are provided on the front and rear sides of the molding insert (7). The upper end of the top block (15) is connected to the top block cylinder (16). Several inclined tops (17) are provided on one side of the molding insert (7). One end of the inclined top (17) is connected to the top plate (30). One side of the top plate (30) is connected to the ejection cylinder (18).
2. The seat forming mold with secondary ejection according to claim 1, characterized in that: A guide post (19) is provided between the molding insert (7) and the front mold (2), and a guide sleeve is fitted on the outside of the guide post (19).
3. A seat forming mold with secondary ejection according to claim 1 or 2, characterized in that: The molded insert (7) is provided with several cooling water channels (12).
4. The seat forming mold with secondary ejection according to claim 1, characterized in that: A protrusion (21) is provided near the middle of the pad (8), and the protrusion (21) is provided with cooling water passage three (13).
5. The seat forming mold with secondary ejection according to claim 4, characterized in that: The lower end of the hot runner injection port (5) is connected to the injection tube (22), and the lower end of the injection tube (22) is provided with an injection nozzle (23). The position of the injection nozzle (23) matches the position of the protrusion (21).
6. The seat forming mold with secondary ejection according to claim 1, characterized in that: The front mold (2) and rear mold (1) are provided with several cooling water channels (14).
7. The seat forming mold with secondary ejection according to claim 1, characterized in that: The hot runner fixing plate (3) is provided with an injection molding machine pressure plate groove (24) on its side.
8. The seat forming mold with secondary ejection according to claim 1, characterized in that: The front mold (2) and the rear mold (1) are locked together by a locking buckle (25).
9. A seat forming mold with secondary ejection according to claim 1 or 8, characterized in that: The front mold (2) and the rear mold (1) are provided with lifting rings (26) on one side.
10. A seat forming mold with secondary ejection according to claim 1 or 8, characterized in that: A guide post 2 (27) is provided between the front mold (2) and the rear mold (1), and a guide sleeve 2 (28) is sleeved on the outside of the guide post 2 (27).