Multicolor silicone molding machine
By designing an auxiliary mold drive cylinder and locking block structure for a multi-color silicone molding machine, the problem of silicone entering the injection port affecting molding was solved, achieving efficient molding and precise color distribution without subsequent mold modification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GWN (TIANJIN) PRECISION ELECTRONIC CORP LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-12
AI Technical Summary
In existing multi-color silicone molding machines, silicone may enter the injection port during the injection process, affecting the molding state and requiring subsequent shaping treatment, thus impacting the molding effect.
A multi-color silicone molding machine was designed. The auxiliary mold drives the cylinder to lift the auxiliary sealing column, thereby connecting the main feed port and the side feed port to ensure that the silicone is accurately injected into the mold. The locking block and locking groove structure prevents the mold from separating, ensuring molding stability.
No subsequent shape correction is required, resulting in better molding effects, more precise color distribution in silicone products, and reduced equipment failure rate and probability of silicone color mixing.
Smart Images

Figure CN224348243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of multi-color silicone molding, and in particular to a multi-color silicone molding machine. Background Technology
[0002] An existing patent (publication number: CN118372428B) discloses a multi-color silicone molding machine, which includes a mold cover plate set on the upper side of the mold base plate, two sets of first side mold plates and two sets of second side mold plates. The lower surface of each of the two sets of first side mold plates is fixedly connected to a first connecting block, and the lower side of each of the two sets of first connecting blocks is fixedly connected to a first extension rod. The lower surface of each of the two sets of second side mold plates is fixedly connected to a second connecting block. However, this device "can inject silicone of different colors into different positions in the mold until the injection head is directly above the target injection port." During the silicone molding process, silicone may enter the injection port and affect the silicone molding state, requiring subsequent shaping treatment and affecting the molding effect. Summary of the Invention
[0003] This invention addresses the aforementioned shortcomings of existing technologies by providing a multi-color silicone molding machine that prevents silicone from being pressed into the main feed port during the molding process, thus avoiding any impact on the molded shape and eliminating the need for subsequent shape correction, resulting in a better molding effect.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A multi-color silicone molding machine includes a support base, an upper molding die, a lower die drive cylinder, an upper auxiliary die, a feeding slide, a gear drive motor, a drive gear, a feeding port mounting seat, a feeding port drive cylinder, a lower molding die, a silicone feeding port, a locking block, a locking block drive cylinder, an auxiliary die drive cylinder, a moving roller drive motor, and a moving roller. The support base has molding platform support columns and feeding platform support columns on both sides, with the molding platform support columns centrally located. The feeding platform support columns are distributed on both sides of the molding platform support columns. Each molding platform support column has a molding platform at its top, and each feeding platform support column has a feeding support platform at its top. The feeding support platform is located above the molding platform and has a feeding slide connecting groove inside. The molding platform is adapted to the lower molding die and is connected to it. The lower molding die is located within the molding platform. The lower forming mold has a sliding mechanism. A lower mold drive cylinder is located at the bottom of the lower forming mold. A telescopic rod at the top of the lower mold drive cylinder is fixedly connected to the lower forming mold. A support base is fixedly connected to the bottom of the lower mold drive cylinder. An upper forming mold is located at the top of the forming platform. The bottom of the upper forming mold has a mold connecting platform that is adapted to and connected to the forming platform. The mold connecting platform is inserted into and fixed inside the forming platform. The upper forming mold has a main feed port, with multiple main feed ports evenly arranged inside. Side feed ports are located on the sides of the main feed ports. An upper auxiliary mold is located at the top of the upper forming mold. The bottom of the upper auxiliary mold has auxiliary sealing columns. The number and position of the auxiliary sealing columns correspond to the main feed ports. The main feed ports and auxiliary sealing columns are adapted to each other. The main feed ports are connected to the auxiliary sealing columns, which slide inside the main feed ports.
[0006] The upper auxiliary mold has a feed port clearance groove inside, with each feed port clearance groove located between two adjacent auxiliary sealing posts. The upper forming mold has locking block positioning grooves on both sides, with a locking block driving cylinder fixedly connected to the side of each groove. The telescopic rod of the locking block driving cylinder is fixedly connected to the locking block. The bottom of the locking block has a locking block positioning post, which is adapted to the locking block positioning groove and connects to it. The locking block positioning post slides within the locking block positioning groove. The locking block has a locking groove inside, and the distance from the top plane of the locking groove to the top plane of the upper forming mold is equal to the distance between the upper auxiliary mold and the upper sealing post. The molds are of equal thickness. Both sides of the upper auxiliary mold have locking block clearance grooves and drive cylinder docking platforms. The locking block clearance grooves correspond to the positions of the locking blocks. The drive cylinder docking platforms are distributed on both sides of the locking block clearance grooves. The width of the locking block clearance grooves is the same as the width of the locking blocks. The upper forming mold is fixedly connected to the auxiliary mold drive cylinders on both sides. The positions of the auxiliary mold drive cylinders correspond to the positions of the drive cylinder docking platforms. The telescopic rods of the auxiliary mold drive cylinders are fixedly connected to the drive cylinder docking platforms. The feeding support platform is equipped with a feeding slide. The feeding slide has feeding slide connecting ears on both sides. The feeding slide connecting ears are adapted to the feeding slide connecting grooves.
[0007] Beneficial effects: 1. When performing multi-color silicone molding, the upper auxiliary mold is lifted by the auxiliary mold driving cylinder. At this time, the auxiliary sealing column is pulled out from the inside of the main feed port, and the auxiliary sealing column no longer blocks the side feed ports. At this time, all the side feed ports and the main feed port are connected to the inside of the molding table. The silicone feed port containing the corresponding color can be driven to be inserted into the corresponding side feed port to complete the silicone injection. After all colors are injected, the silicone feed port is lifted, and the upper auxiliary mold is lowered again so that the bottom plane of the main feed port is flush with the bottom plane of the upper molding mold. Then, the lower mold driving cylinder drives the lower molding mold to rise and press the silicone into a fixed shape. During the molding process, the silicone will not be pressed into the main feed port and affect the shape of the molded product. No subsequent processing or shape correction is required, and the molding effect is better.
[0008] 2. The upper forming mold of this utility model is provided with a locking block on the side. When the upper auxiliary mold is lowered to fit with the upper forming mold, the locking block drives the cylinder to retract, so that the locking groove of the locking block fits on the side of the upper auxiliary mold, so that the upper auxiliary mold is completely locked, avoiding the separation of the upper forming mold and the upper auxiliary mold during the forming process, which would cause molding defects in the multi-color silicone, thereby ensuring the molding stability of this device.
[0009] 3. The locking block of this utility model has a chamfer on the side of the clearance groove. When the locking block is connected to the upper auxiliary mold, even if the locking groove and the upper auxiliary mold are not completely aligned, the chamfer can guide the locking block to connect correctly with the upper auxiliary mold, reducing the probability of the locking block and the upper auxiliary mold jamming each other in this device, thereby reducing the failure rate of this device.
[0010] 4. The side of the feeding port mounting base of this utility model is provided with multiple sets of silicone feeding ports. Each silicone feeding port can feed a single color of silicone, so that the silicone of each color will not mix during the feeding process, and the color distribution of the silicone product after molding is more accurate. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a multi-color silicone molding machine according to the present invention.
[0012] Figure 2 This is a front cross-sectional view of a multi-color silicone molding machine according to the present invention.
[0013] Figure 3 The present utility model Figure 2 Enlarged view of a specific area.
[0014] Figure 4 This is a diagram showing the installation state of the silicone feed port described in this utility model.
[0015] Figure 5 This is a diagram showing the installation state of the auxiliary mold drive cylinder described in this utility model.
[0016] Figure 6 This is a schematic diagram of the support base structure described in this utility model.
[0017] Figure 7 This is a schematic diagram of the upper forming mold structure described in this utility model.
[0018] Figure 8 This is a schematic diagram of the upper auxiliary mold structure described in this utility model. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[0020] Example 1:
[0021] A multi-color silicone molding machine includes a support base 1, an upper molding mold 5, a lower mold drive cylinder 6, an upper auxiliary mold 7, a feeding slide 11, a gear drive motor 14, a drive gear 15, a feeding port mounting seat 16, a feeding port drive cylinder 18, a lower molding mold 19, a silicone feeding port 21, a locking block 28, a locking block drive cylinder 32, an auxiliary mold drive cylinder 34, a moving roller drive motor 38, and a moving roller 39. The support base 1 has molding platform support columns 3 and feeding platform support columns 2 on both sides. The molding platform support columns 3 are centrally located, and the feeding platform support columns 2 are distributed on both sides of the molding platform support columns 3. The top of the molding platform support column 3 has a molding platform 4, and the top of the feeding platform support column 2 has a molding platform 4. The system includes a feeding support platform 8 located above the forming platform 4. The feeding support platform 8 has a feeding slide connecting groove 9 inside. The forming platform 4 is adapted to the lower forming mold 19 and is connected to it. The lower forming mold 19 slides inside the forming platform 4. A lower mold drive cylinder 6 is located at the bottom of the lower forming mold 19, with a telescopic rod at the top fixedly connected to it. A support base 1 is fixedly connected to the bottom of the lower mold drive cylinder 6. An upper forming mold 5 is located at the top of the forming platform 4, with a mold connecting platform 25 at its bottom. The mold connecting platform 25 is adapted to the forming platform 4 and is connected to it. The mold connecting platform 25 is inserted into the forming platform. 4. The upper molding mold 5 has a main feed port 23 inside, and multiple sets of main feed ports 23 are evenly arranged inside the upper molding mold 5. The main feed ports 23 have side feed ports 24 on their sides. The upper molding mold 5 is equipped with an upper auxiliary mold 7 on top. When performing multi-color silicone molding, the upper auxiliary mold 7 is lifted by the auxiliary mold driving cylinder 34. At this time, the auxiliary sealing column 22 is pulled out from the inside of the main feed port 23, and the auxiliary sealing column 22 no longer blocks the side feed ports 24. At this time, all the side feed ports 24 and the main feed ports 23 are connected to the inside of the molding table 4. At this time, the silicone feed port 21 containing the corresponding color can be driven to be inserted into the side feed port 24 at the corresponding position to complete the silicone injection. After all colors are injected, the silicone feed port 21 is raised, and the upper auxiliary mold 7 is lowered again, so that the bottom plane of the main feed port 23 is flush with the bottom plane of the upper molding mold 5. Then, the lower mold drive cylinder 6 drives the lower molding mold 19 to rise, pressing the silicone into a fixed shape. During the molding process, the silicone will not be pressed into the main feed port 23 and affect the shape of the molded product. No subsequent processing or shape correction is required, resulting in a better molding effect. The bottom of the upper auxiliary mold 7 has auxiliary sealing columns 22. The number and position of the auxiliary sealing columns 22 correspond to the main feed port 23. The main feed port 23 and the auxiliary sealing columns 22 are adapted to each other. The main feed port 23 is connected to the auxiliary sealing columns 22, and the auxiliary sealing columns 22 slide inside the main feed port 23.
[0022] Example 2:
[0023] The upper auxiliary mold 7 of this invention has a feed port clearance groove 35 inside, and each feed port clearance groove 35 is located between two adjacent auxiliary sealing posts 22. The upper forming mold 5 has locking block positioning grooves 26 on both sides. Locking block driving cylinders 32 are fixedly connected to the sides of the locking block positioning grooves 26. The telescopic rods of the locking block driving cylinders 32 are fixedly connected to locking blocks 28. Locking blocks 28 have locking block positioning posts 27 at their bottom, which are adapted to the locking block positioning grooves 26. The locking block positioning posts 27 connect to the locking block positioning grooves 26, thus locking... The positioning pin 27 slides inside the positioning groove 26 of the locking block. The locking block 28 has a locking groove 29 inside. The distance from the top plane of the locking groove 29 to the top plane of the upper forming mold 5 is equal to the thickness of the upper auxiliary mold 7. The upper forming mold 5 is provided with a locking block 28 on its side. When the upper auxiliary mold 7 descends to fit against the upper forming mold 5, the locking block drive cylinder 32 retracts, so that the locking groove 29 of the locking block 28 fits onto the side of the upper auxiliary mold 7, so that the upper auxiliary mold 7 is completely locked, preventing the upper forming mold 5 and the upper auxiliary mold 7 from separating during the forming process, which would cause multiple To prevent molding defects in colored silicone, the molding stability of this device is ensured. Both sides of the upper auxiliary mold 7 have locking block clearance grooves 36 and drive cylinder docking platforms 33. The locking block clearance grooves 36 correspond to the locking block 28. The sides of the locking block clearance grooves 36 are chamfered, so that even if the locking groove 29 does not perfectly align with the upper auxiliary mold 7 when the locking block 28 is connected, the chamfer can guide the locking block 28 to connect correctly, reducing the probability of the locking block 28 and the upper auxiliary mold 7 jamming together, thereby reducing the likelihood of malfunctions in this device. The drive cylinder docking platform 33 is distributed on both sides of the locking block clearance groove 36. The width of the locking block clearance groove 36 is the same as the width of the locking block 28. The upper forming mold 5 is fixedly connected to the auxiliary mold drive cylinder 34 on both sides. The position of the auxiliary mold drive cylinder 34 corresponds to the position of the drive cylinder docking platform 33. The telescopic rod of the auxiliary mold drive cylinder 34 is fixedly connected to the drive cylinder docking platform 33. The feeding support platform 8 is provided with a feeding slide 11 inside. The feeding slide 11 has feeding slide connecting ears 31 on both sides. The feeding slide connecting ears 31 are adapted to the feeding slide connecting groove 9.
[0024] Example 3:
[0025] The feeding slide connecting ear 31 of this utility model is connected to the feeding slide connecting groove 9. The feeding slide connecting ear 31 slides inside the feeding slide connecting groove 9. The top of the feeding support platform 8 has a displacement rack 10, and the top of the feeding slide 11 has a gear motor platform 13. The gear drive motor 14 is inserted into the gear motor platform 13 and fixed. The transmission rod of the gear drive motor 14 is fixedly connected to the drive gear 15. The drive gear 15 meshes with the displacement rack 10. The feeding slide 11 has a feeding seat connection inside. The groove 12 and the side of the feeding slide 11 are provided with a feeding port mounting seat 16. The side of the feeding port mounting seat 16 facing the feeding slide 11 has a feeding seat connecting slider 30. The side of the feeding port mounting seat 16 is provided with multiple sets of silicone feeding ports 21. Each silicone feeding port 21 can feed a certain color of silicone independently, so that the silicone of each color will not mix during the feeding process, and the color distribution of the silicone product after molding is more accurate. The feeding seat connecting slider 30 is adapted to the feeding seat connecting groove 12.
[0026] Example 4:
[0027] The feed seat connecting slider 30 of this utility model is connected to the feed seat connecting groove 12. The feed seat connecting slider 30 slides inside the feed seat connecting groove 12. The side of the feed port mounting seat 16 has a moving roller motor platform 37. The moving roller drive motor 38 is inserted into the moving roller motor platform 37 and fixed. The moving roller drive motor 38 has a transmission shaft that is fixedly connected to the moving roller 39. The moving roller 39 is pressed against the upper part of the feed slide table 11. The top of the feed port mounting seat 16 has a feed cylinder connecting groove 17. Multiple sets of feed cylinder connecting grooves 17 are arranged in a straight line and evenly on the surface of the feed port mounting seat 16.
[0028] Example 5:
[0029] The feed port driving cylinder 18 of this utility model is inserted into the feed cylinder connecting groove 17 and fixed. The bottom of the feed port driving cylinder 18 has a telescopic rod with a feed port bearing ring 20. The silicone feed port 21 is inserted into the silicone feed port 21 and fixed. The diameter of the bottom nozzle of the silicone feed port 21 is the same as the diameter of the side feed port 24.
[0030] Example 6:
[0031] The installation steps of this utility model are as follows: The bottom of the lower mold drive cylinder 6 is fixedly connected to the support base 1; the telescopic rod of the lower mold drive cylinder 6 is fixedly connected to the lower forming mold 19, so that the lower forming mold 19 is inserted into the forming table 4; the mold connecting table 25 of the upper forming mold 5 is inserted into the forming table 4; the auxiliary sealing column 22 of the upper auxiliary mold 7 is inserted into the main feeding port 23 of the upper forming mold 5; the side of the upper forming mold 5 is fixedly connected to the locking block drive cylinder 32; the telescopic rod of the locking block drive cylinder 32 is fixedly connected to the locking block 28, so that the locking block positioning column 27 of the locking block 28 is inserted into the locking block positioning groove 26 of the upper forming mold 5; the side of the upper forming mold 5 is fixedly connected to the auxiliary mold drive cylinder 34; the telescopic rod of the auxiliary mold drive cylinder 34 is fixedly connected to the drive cylinder docking table 33 of the upper auxiliary mold 7; the feeding slide connecting ear 31 of the feeding slide 11 is inserted into the support base 1. The gear drive motor 14 is inserted into the gear motor base 13 of the feeding slide 11 and fixed inside the feeding slide 11. The drive shaft of the gear drive motor 14 is fixedly connected to the drive gear 15, so that the drive gear 15 meshes with the displacement rack 10 of the support base 1. The feeding seat connecting slider 30 of the feeding port mounting seat 16 is inserted into the feeding seat connecting groove 12 of the feeding slide 11. The feeding port drive cylinder 18 is inserted into the feeding port mounting seat 16. Some feeding cylinders are fixed inside the connecting groove 17. The silicone feeding port 21 is inserted into the feeding port bearing ring 20 of the feeding port drive cylinder 18 and fixed inside. The moving roller drive motor 38 is inserted into the moving roller motor platform 37 of the feeding port mounting seat 16 and fixed inside. The transmission shaft of the moving roller drive motor 38 is fixedly connected to the moving roller 39. The moving roller 39 is pressed against the upper part of the feeding slide 11, so that the moving roller 39 is pressed against the upper part of the feeding slide 11. This device is then installed.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A multi-color silicone molding machine, characterized in that: The system includes a support base (1), an upper forming mold (5), a lower mold drive cylinder (6), an upper auxiliary mold (7), a feeding slide (11), a gear drive motor (14), a drive gear (15), a feeding port mounting seat (16), and a feeding port drive cylinder (18). The support base (1) has forming platform support columns (3) and feeding platform support columns (2) on both sides. The forming platform support columns (3) are located in the center, and the feeding platform support columns (2) are distributed on both sides of the forming platform support columns (3). The top of the forming platform support columns (3) has a forming platform (4). The top of the column (2) has a feeding support platform (8), which is located on the upper part of the forming platform (4). The feeding support platform (8) has a feeding slide connecting groove (9) inside. The forming platform (4) is adapted to the lower forming mold (19). The forming platform (4) is connected to the lower forming mold (19). The lower forming mold (19) slides inside the forming platform (4). The bottom of the lower forming mold (19) is provided with a lower mold drive cylinder (6). The telescopic rod at the top of the lower mold drive cylinder (6) is fixedly connected to the lower forming mold (19). The bottom of the lower mold drive cylinder (6) is fixedly connected to the support base (1).
2. The multi-color silicone molding machine according to claim 1, characterized in that: The upper forming mold (5) is provided on the top of the forming platform (4). The upper forming mold (5) has a mold connecting platform (25) at the bottom. The mold connecting platform (25) is adapted to the forming platform (4). The mold connecting platform (25) is connected to the forming platform (4). The mold connecting platform (25) is inserted into the forming platform (4) and fixed. The upper forming mold (5) has a main feeding port (23) inside. Multiple sets of main feeding ports (23) are evenly arranged inside the upper forming mold (5). The side of the main feeding port (23) has a side feeding port (24). The upper forming mold (5) has an upper auxiliary mold (7) on the top. The upper auxiliary mold (7) has an auxiliary sealing column (22) at the bottom. The number and position of the auxiliary sealing columns (22) are corresponding to the main feeding port (23). The main feeding port (23) is adapted to the auxiliary sealing column (22). The main feeding port (23) is connected to the auxiliary sealing column (22). The auxiliary sealing column (22) slides inside the main feeding port (23).
3. A multi-color silicone molding machine according to claim 1, characterized in that... The upper auxiliary mold (7) has a feed port clearance groove (35) inside. Each feed port clearance groove (35) is located between two adjacent auxiliary sealing columns (22). The upper forming mold (5) has locking block positioning grooves (26) on both sides. The locking block positioning groove (26) is fixedly connected to the side of the locking block driving cylinder (32). The telescopic rod of the locking block driving cylinder (32) is fixedly connected to the locking block (28). The bottom of the locking block (28) has a locking block positioning post (27). The locking block positioning post (27) is adapted to the locking block positioning groove (26). The locking block positioning post (27) is connected to the locking block positioning groove. The locking block positioning post (27) slides inside the locking block positioning groove (26). The locking block (28) has a locking groove (29) inside. The distance from the top plane of the locking groove (29) to the top plane of the upper forming mold (5) is equal to the thickness of the upper auxiliary mold (7). The upper auxiliary mold (7) has a locking block clearance groove (36) and a drive cylinder docking platform (33) on both sides. The locking block clearance groove (36) corresponds to the position of the locking block (28). The drive cylinder docking platform (33) is distributed on both sides of the locking block clearance groove (36). The width of the locking block clearance groove (36) is the same as the width of the locking block (28).
4. A multi-color silicone molding machine according to claim 1, characterized in that... The upper forming mold (5) is fixedly connected to the auxiliary mold driving cylinder (34) on both sides. The position of the auxiliary mold driving cylinder (34) corresponds to the position of the driving cylinder docking platform (33). The telescopic rod of the auxiliary mold driving cylinder (34) is fixedly connected to the driving cylinder docking platform (33). The feeding support platform (8) is provided with a feeding slide (11). The feeding slide (11) has feeding slide connecting ears (31) on both sides. The feeding slide connecting ears (31) are adapted to the feeding slide connecting groove (9).
5. A multi-color silicone molding machine according to claim 4, characterized in that... The feeding slide connecting ear (31) is connected to the feeding slide connecting groove (9). The feeding slide connecting ear (31) slides inside the feeding slide connecting groove (9). The top of the feeding support platform (8) has a displacement rack (10). The top of the feeding slide (11) has a gear motor platform (13). The gear drive motor (14) is inserted into the gear motor platform (13) and fixed. The transmission rod of the gear drive motor (14) is fixedly connected to the drive gear (15). The drive gear (15) meshes with the displacement rack (10). The inside of the feeding slide (11) has a feeding seat connecting groove (12). The side of the feeding slide (11) is provided with a feeding port mounting seat (16). The side of the feeding port mounting seat (16) facing the feeding slide (11) has a feeding seat connecting slider (30). The feeding seat connecting slider (30) is adapted to the feeding seat connecting groove (12).
6. A multi-color silicone molding machine according to claim 5, characterized in that... The feeding seat connecting slider (30) is connected to the feeding seat connecting groove (12). The feeding seat connecting slider (30) slides inside the feeding seat connecting groove (12). The side of the feeding port mounting seat (16) has a moving roller motor platform (37). The moving roller drive motor (38) is inserted into the moving roller motor platform (37) and fixed. The moving roller drive motor (38) has a transmission shaft that is fixedly connected to the moving roller (39). The moving roller (39) is pressed against the upper part of the feeding slide (11). The top of the feeding port mounting seat (16) has a feeding cylinder connecting groove (17). Multiple sets of feeding cylinder connecting grooves (17) are arranged in a straight line evenly on the surface of the feeding port mounting seat (16).
7. A multi-color silicone molding machine according to claim 6, characterized in that... The feed port drive cylinder (18) is inserted into the feed cylinder connecting groove (17) and fixed. The feed port drive cylinder (18) has a telescopic rod at the bottom with a feed port bearing ring (20). The silicone feed port (21) is inserted into the silicone feed port (21) and fixed. The diameter of the nozzle at the bottom of the silicone feed port (21) is the same as the diameter of the side feed port (24).