Disc type multicolor shoe sole injection molding machine

Abstract

The invention relates to a disc type shoe sole injection molding machine, in particular to a disc type multi-color shoe sole injection molding machine which comprises a rotating disc, a molding mold assembly and an injection mechanism, the rotating disc is arranged in an intermittent rotating mode, the rotating disc is provided with an injection station and a discharging station in the circumferential direction, and the molding mold assembly is arranged in the circumferential direction of the rotating disc and arranged on the rotating disc; the forming mold assembly comprises a replaceable shoe tree, a mold frame and bottom molds, the shoe tree, the mold frame and the bottom molds jointly form an injection forming cavity, the injection mechanism is arranged on an injection station and comprises an injection head, the bottom molds are installed on an installation base, the installation base can be provided with at least two sets of bottom molds, and the bottom molds are provided with forming grooves used for containing materials. The mounting base is rotationally arranged on the moving frame, the moving frame is arranged below the rotating disc in a lifting mode, the mounting base rotates to change the forming groove facing the mold frame, multiple times of injection are convenient, and production continuity is good.

Description

Technical Field

[0001] The present invention relates to a disc-type sole injection molding machine, and particularly to a disc-type multi-color sole injection molding machine. Background Art

[0002] The Chinese utility model patent with the publication number CN217552948U discloses a two-color high-low horizontal injection shoe disc injection molding machine, which designs a first-head main machine injection lifting assembly and a second-head auxiliary machine injection assembly to perform two injections to realize the two-color molding of the sole. Before the first injection, a false shoe last of the horizontal shoe last injection mold is inserted into the shoe last insertion slot of the shoe last pressing assembly. Before the second injection, the sprue is pulled out and the false shoe last of the horizontal shoe last injection mold is taken out, and a true shoe last of the horizontal shoe last injection mold is inserted. The replacement of the shoe last is cumbersome, which affects the continuity of production. Summary of the Invention

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a disc-type multi-color sole injection molding machine, in which the mounting seat rotates to change the bottom mold for forming the injection molding cavity, so as to realize the multi-color molding of the sole.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: This disc-type multi-color sole injection molding machine includes a turntable, a molding die assembly, and an injection mechanism. The turntable is intermittently rotated. The turntable is provided with injection stations and blanking stations along the circumferential direction. The molding die assembly is arranged along the circumference of the turntable and is arranged on the turntable. The molding die assembly includes a replaceable shoe last, a mold frame, and a bottom mold. The shoe last, the mold frame, and the bottom mold together form an injection molding cavity. The injection mechanism is arranged at the injection station. The injection mechanism includes an injection head. Among them, the bottom mold is installed on a mounting seat. The mounting seat can install at least two groups of bottom molds. The bottom mold is provided with a molding groove for accommodating materials. The mounting seat is rotatably arranged on a moving frame, and the moving frame is arranged to be lifted and lowered below the turntable.

[0005] In this solution, the moving frame descends to leave a space for the mounting seat to rotate. The mounting seat rotates to change the bottom mold facing the mold frame, and then injection can be carried out again, with good production continuity.

[0006] Preferably, the mounting seat has a position to be injected and a molding position. The mounting seat moves up and down between the position to be injected and the molding position. When the injection mechanism works, the mounting seat is in the position to be injected.

[0007] In this solution, after the injection mechanism injects materials into the molding groove of the bottom mold, the moving frame rises. The shoe last, the mold frame, and the bottom mold together form an injection molding cavity. Multiple injections do not require adjusting the position of the injection head.

[0008] Preferably, a diversion seat is provided on the mold frame. The diversion seat is provided with an injection hole for docking an injection head and a material guiding channel. The feeding section of the material guiding channel is communicated with the injection hole, and the discharging section of the material guiding channel inclines downward.

[0009] In this solution, a general injection head injects horizontally. The feeding section of the diversion channel is horizontal, and the discharging section inclines. This changes the direction of the material output by the injection head, enabling the material to accurately fall into the forming groove, and the corner can slow down the material.

[0010] Preferably, the mold frame is arranged to be openable and closable.

[0011] In this solution, the mold frame is opened to take out the finished product.

[0012] Preferably, the mold frame includes a left mold and a right mold. One end of the left mold and one end of the right mold are hinged to the same point on the turntable. The other end of the left mold and the other end of the right mold are both hinged with push-pull arms. The push-pull arms are hinged with swing blocks, and the swing blocks are swingably arranged on the turntable.

[0013] In this solution, the swing of the swing block can drive the push-pull arms to push and pull the left mold and the right mold, realizing the opening and closing of the mold frame.

[0014] Preferably, the shoe last is inserted and matched with an insert block. The shoe last is provided with an insertion shaft. The insert block is provided with an insertion hole corresponding to the insertion shaft. The two sides of the insert block extend with clamping blocks. The two sides of the shoe last are provided with clamping grooves corresponding to the clamping blocks. The insert block is inserted and matched with a slot. The slot is arranged on an adjusting seat. The adjusting seat is arranged on the turntable, and the socket of the slot faces horizontally.

[0015] In this solution, after the insertion shaft is inserted into the insertion hole, the insert block is rotated, and the clamping blocks are clamped into the clamping grooves to complete the assembly of the shoe last and the insert block. Then, the insert block is inserted into the slot to complete the installation.

[0016] Preferably, the adjusting seat is arranged on the base in a lifting and adjusting manner. The base is arranged on the turntable.

[0017] In this solution, the lifting and adjusting of the adjusting seat drives the shoe last to complete the debugging of the shoe last.

[0018] Preferably, a vertical screw rod is rotatably arranged on the base. The vertical screw rod is in threaded cooperation with a lifting block, and the lifting block is connected with the adjusting seat.

[0019] In this solution, rotating the vertical screw rod drives the lifting block to lift and lower to complete the adjustment of the shoe last, which is convenient for adjustment.

[0020] Preferably, the moving frame is slidably arranged on a lifting guide rail. The lifting guide rail is arranged on a mounting frame. The mounting frame is connected with the turntable. A lifting power source for driving the moving frame is arranged below the mounting frame.

[0021] In this solution, the lifting power source drives the moving part to move up and down along the lifting guide rail.

[0022] Preferably, rotating shafts are provided at both ends of the mounting seat, the rotating shafts are drivingly connected to a cross handle, and the cross handle is rotatably arranged on the moving frame.

[0023] In this solution, rotating the cross handle drives the mounting seat to rotate, which is convenient for switching.

[0024] The beneficial effects of the present invention are as follows: after the injection mechanism injects the material into the forming groove of the bottom mold, the moving frame rises, and the shoe last, the mold frame and the bottom mold together form an injection molding cavity. After a period of time, the moving frame descends, the bottom mold is separated from the mold frame, the mounting seat rotates to change the orientation towards the forming groove of the mold frame, and injection can be carried out again. Multiple injections are convenient and the production continuity is good. Therefore, the present invention has substantial features and progress compared with the prior art. Description of the Drawings

[0025] The following describes the implementation manners of the present invention and the relevant details and working principles of the embodiments with reference to the drawings.

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] Figure 2 It is a three-dimensional structural diagram of the forming mold assembly in the present invention.

[0028] Figure 3 It is a three-dimensional structural diagram of the mold frame in the present invention.

[0029] Figure 4 It is a side view of the bottom mold in the present invention.

[0030] Figure 5 It is a three-dimensional structural diagram of the forming groove in the present invention.

[0031] Figure 6 It is a schematic diagram of the material guiding channel of the guiding seat in the present invention.

[0032] Figure 7 It is a three-dimensional structural diagram of the moving frame in the present invention.

[0033] In the figure: 1, turntable; 2, forming mold assembly; 3, shoe last; 4, mold frame; 5, bottom mold; 6, injection mechanism; 7, mounting seat; 8, moving frame; 9, left mold; 10, right mold; 11, push-pull arm; 12, swing block; 13, insertion block; 14, insertion slot; 15, adjusting seat; 16, base; 17, vertical screw; 18, lifting block; 19, lifting guide rail; 20, rotating shaft; 21, cross handle; 22, guiding seat; 23, injection hole; 24, material guiding channel; 26, mounting frame; 27, lifting power source; 28, forming groove. Detailed implementation manners

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0036] In the description of the present application, terms such as "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0037] See the appendix Figures 1-7, in an embodiment of this implementation manner, a disk-type multi-color sole injection molding machine includes a turntable 1, a molding die assembly 2, and an injection mechanism 6. The turntable 1 is intermittently rotatably arranged. The turntable 1 is provided with an injection station and a blanking station along its circumferential direction. The molding die assembly 2 is arranged along the circumferential direction of the turntable 1 and is arranged on the turntable 1. The molding die assembly 2 includes a replaceable shoe last 3, a die frame 4, and a bottom die 5. The shoe last 3, the die frame 4, and the bottom die 5 jointly form an injection molding cavity. The die frame 4 is opened and closed. A flow guiding seat 22 is arranged on the die frame 4. The flow guiding seat 22 is provided with an injection hole 23 for docking an injection head and a material guiding channel 24. The feeding section of the material guiding channel 24 is communicated with the injection hole 23. The discharging section of the material guiding channel 24 is inclined downward. The injection mechanism 6 is arranged at the injection station. The injection mechanism 6 includes an injection head. Among them, the bottom die 5 is installed on a mounting seat 7. The mounting seat 7 can install at least two groups of bottom dies 5. The bottom die 5 is provided with a molding groove 28 for accommodating materials. The mounting seat 7 is rotatably arranged on a moving frame 8. The moving frame 8 is arranged to be lifted and lowered below the turntable 1. The mounting seat 7 has a position to be injected and a molding position. The mounting seat 7 is lifted and lowered to move between the position to be injected and the molding position. When the injection mechanism 6 works, the mounting seat 7 is in the position to be injected. The moving frame 8 is slidably arranged on a lifting guide rail 19. The lifting guide rail 19 is arranged on a mounting frame 26. The mounting frame 26 is connected to the turntable 1. A lifting power source 27 for driving the moving frame 8 is arranged below the mounting frame 26. Rotating shafts 20 are arranged at both ends of the mounting seat 7. The rotating shafts 20 are drivingly connected to a cross handle 21. The cross handle 21 is rotatably arranged on the moving frame 8.

[0038] In this embodiment, after the shoe last 3 is put on the shoe mold and installed in place, the mold frame 4 is closed. The turntable 1 is started, and the turntable 1 drives the molding die assembly 2 to move towards the injection station. The injection mechanism 6 is docked with the injection hole 23 of the diversion seat 22 at the injection station, and the material is injected into the molding groove 28 of the bottom mold 5. The moving frame 8 rises to drive the bottom mold 5 to jointly form an injection molding cavity with the mold frame 4 and the shoe last 3. Subsequently, the turntable 1 continues to rotate. After a period of cooling time, at the blanking station, the moving frame 8 descends to drive the bottom mold 5 to separate from the mold frame 4. The cross handle is rotated to drive the mounting seat 7 to change the orientation of the bottom mold 5 facing the mold frame 4. Subsequently, the turntable 1 comes to the injection station again for secondary injection. When it comes to the blanking station again, the moving frame 8 descends to separate the bottom mold 5 from the mold frame 4, and the mold frame 4 is opened to take out the finished product. Among them, after injection, the bottom mold 5 rises to form an injection molding cavity. The same injection hole 23 can be used for both injections, and there is no situation where the formed material blocks the injection hole 23. Alternatively, the discharge flow path of the injection head can be designed, and then the diversion seat 22 is not required. The diversion seat 22 can be arranged on the moving frame 8 as long as its position is fixed during injection. For multi-color shoe soles, multiple injections can be completed by the same injection mechanism 6, or can be separately completed by the corresponding injection mechanisms 6 at multiple stations. The bottom mold 5 for changing stations needs to be designed in the middle. In a single station, it can be one injection head or multiple replaceable injection heads. The injection head moves along the radial direction of the turntable 1, which is a mature technology. The lifting power source 27 is a cylinder, and the lifting guide rails 19 are arranged at the four corners of the mounting frame 26. For multi-color requirements such as three colors and four colors, the number of bottom molds 5 can be increased and arranged circumferentially along the rotation axis of the mounting seat 7. For two colors, they are the front and back sides. For three colors, they are the three side faces of a triangular prism. For four colors, they are the four side faces of a cube, and so on.

[0039] In other alternative embodiments, injection can be carried out after the injection molding cavity is formed. When making multi-color shoe soles, multiple injection ports need to be designed or the height of the shoe last 3 needs to be adjusted to make room for injection.

[0040] See the appendix Figures 2-3 , the mold frame 4 includes a left mold 9 and a right mold 10. One end of the left mold 9 and one end of the right mold 10 are hinged to the same point on the turntable 1. The other end of the left mold 9 and the other end of the right mold 10 are both hinged with a push-pull arm 11. The push-pull arm 11 is hinged with a swing block 12, and the swing block 12 is swingably arranged on the turntable 1.

[0041] In this embodiment, the swing block 12 is driven to swing by the handle, driving the push-pull arm 11 to push the left mold 9 and the right mold 10 closer to complete the closing of the mold frame 4.

[0042] In other alternative embodiments, the left mold 9 and the right mold 10 can also be clamped by a cylinder drive. The clamping schemes are diverse and are mature technologies.

[0043] See the appendix Figure 2, the shoe last 3 is inserted and fitted with an insertion block 13. The shoe last 3 is provided with an insertion shaft, and the insertion block 13 is provided with an insertion hole corresponding to the insertion shaft. Clamping blocks extend from both sides of the insertion block 13, and clamping grooves corresponding to the clamping blocks are provided on both sides of the shoe last 3. The insertion block 13 is inserted and fitted with a slot 14. The slot 14 is arranged on an adjusting seat 15, and the adjusting seat 15 is arranged on the turntable 1. The insertion opening of the slot 14 is horizontally arranged. A vertical screw rod 17 is rotatably arranged on the moving frame 8. The vertical screw rod 17 is in threaded fit with a lifting block 18, and the lifting block 18 is connected to the adjusting seat 15.

[0044] In this embodiment, during debugging, the insertion shaft of the shoe last 3 is inserted into the insertion hole of the insertion block 13, and the insertion block 13 is rotated to make the clamping blocks snap into the clamping grooves. The clamping blocks and the clamping grooves prevent the insertion shaft from disengaging from the insertion hole. The height of the shoe last 3 is adjusted by driving the vertical screw rod 17 to rotate through the handwheel to adapt to different shoe molds, such as boots, high-top shoes, low-top shoes, etc.

[0045] In other alternative embodiments, it is also possible to use a guide rail and slider to adjust the height of the shoe last 3. There are various adjustment schemes, which are mature technologies.

[0046] The above is the preferred embodiment of the present invention. It should be noted that the protection scope of the present invention is not limited thereto. For those skilled in the art of this technology, without departing from the technical scope disclosed by the present invention and under the premise of the same inventive concept, multiple improvements, refinements or equivalent replacements can also be made, which are also regarded as the protection scope of the present invention.

Claims

1. A disc-type multi-color sole injection molding machine, comprising: A turntable (1) is arranged to rotate intermittently, and the turntable (1) is provided with an injection station and a material unloading station along the circumference; a molding die assembly (2) arranged along the circumference of the rotating disk (1) and arranged on the rotating disk (1), the molding die assembly (2) comprising a replaceable shoe last (3), a mold frame (4) and a bottom mold (5), the shoe last (3), the mold frame (4) and the bottom mold (5) together forming an injection molding cavity; An injection mechanism (6), which is arranged at the injection station, and the injection mechanism (6) comprises an injection head; Features: The bottom mold (5) is mounted on a mounting seat (7), and the mounting seat (7) is capable of mounting at least two sets of bottom molds (5). The bottom mold (5) is provided with a molding groove (28) for accommodating materials. The mounting seat (7) is rotatably mounted on a movable frame (8), and the movable frame (8) is lifted and lowered below the turntable (1).

2. A disc-type multi-color sole injection molding machine as claimed in claim 1, characterized in that: The mounting seat (7) has a waiting injection position and a molding position. The mounting seat (7) is lifted and lowered to move between the waiting injection position and the molding position. When the injection mechanism (6) is working, the mounting seat (7) is in the waiting injection position.

3. A disc-type multi-color sole injection molding machine as claimed in claim 2, characterized in that: The mold frame (4) is provided with a flow guide seat (22), the flow guide seat (22) being provided with an injection hole (23) for docking with an injection head and a material guide channel (24), a material feed section of the material guide channel (24) being connected to the injection hole (23), and a material discharge section of the material guide channel (24) being inclined downward.

4. A disc-type multi-color sole injection molding machine as claimed in claim 1, characterized in that: The mold frame (4) is arranged to be opened and closed.

5. A disc-type multi-color sole injection molding machine as claimed in claim 4, characterized in that: The mold frame (4) comprises a left mold (9) and a right mold (10), one end of the left mold (9) and one end of the right mold (10) are hinged to the same point of the turntable (1), the other end of the left mold (9) and the other end of the right mold (10) are both hinged to a push-pull arm (11), the push-pull arm (11) is hinged to a swing block (12), and the swing block (12) is swingably arranged on the turntable (1).

6. The disc-type multi-color sole injection molding machine according to claim 1, characterized in that: The shoe last (3) is plugged with an insert block (13), the shoe last (3) is provided with an insert shaft, the insert block (13) is provided with an insert hole corresponding to the insert shaft, clamping blocks extend from both sides of the insert block (13), and clamping grooves are provided on both sides of the shoe last (3) corresponding to the clamping blocks, the insert block (13) is plugged with a slot (14), the slot (14) is arranged on an adjustment seat (15), the adjustment seat (15) is arranged on the turntable (1), and the insertion opening of the slot (14) is arranged horizontally.

7. A disc-type multi-color sole injection molding machine as claimed in claim 6, characterized in that: The adjustment seat (15) is arranged on a base (16) for lifting and lowering adjustment, and the base (16) is arranged on the turntable (1).

8. A disc-type multi-color sole injection molding machine as claimed in claim 7, characterized in that: A vertical screw rod (17) is rotatably arranged on the base (16), and a lifting block (18) is threadably matched with the vertical screw rod (17), and the lifting block (18) is connected to the adjustment seat (15).

9. The disc-type multi-color sole injection molding machine according to claim 1, characterized in that: The movable frame (8) is slidably arranged on a lifting guide rail (19), the lifting guide rail (19) is arranged on a mounting frame (26), the mounting frame (26) is connected to the turntable (1), and a lifting power source (27) for driving the movable frame (8) is arranged below the mounting frame (26).

10. The disc-type multi-color sole injection molding machine according to claim 1, characterized in that: Rotating shafts (20) are provided at both ends of the mounting seat (7), the rotating shafts (20) are transmission-connected to a cross handle (21), and the cross handle (21) is rotatably disposed on the moving frame (8).

Images