Rubber two-color injection molding machine and its main body

Abstract

The utility model discloses a rubber two -color injection molding machine's main part contains frame, first injection machine, second injection machine and a plurality of arrange into the open -close mould mechanism row's open -close mould mechanism, and every open -close mould mechanism contains mould frame, upper installation body and lower mounting seat. Be equipped with lower machine mouth, lower nozzle and the lower feed flow channel of intercommunication lower machine mouth and lower nozzle on lower mounting seat, and lower nozzle still exposes in lower mounting seat upward, be equipped with upper machine mouth and upper feed flow channel system on upper installation body. First injection machine is located open -close mould mechanism row's first side beside, and first injection machine can slip to with any open -close mould mechanism's upper machine mouth corresponding position. Second injection machine slips to with any open -close mould mechanism's lower machine mouth corresponding position through the cooperation of lifting and slipping. Rubber two -color injection molding machine's main part of the utility model can reduce manual operation and improve the efficiency, can also ensure the accurate joint of injection nozzle and lower machine mouth. In addition, the utility model discloses a rubber two -color injection molding machine.

Description

Technical Field

[0001] This utility model relates to the technical field of two-color injection molding of rubber, and in particular to a two-color injection molding machine for rubber and its main body. Background Technology

[0002] With the continuous development of the economy and the continuous progress of society, people's lives are provided with an extremely rich variety of material consumer goods, and rubber footwear is one of these many material consumer goods.

[0003] In the production of rubber footwear, injection molding machines are indispensable, as they are commonly used equipment for producing rubber shoe soles.

[0004] For example, in the rubber injection molding machine and its main body disclosed in Chinese Patent Application No. 202311844278.2, although its injection machine can inject liquid into the nozzles of each mold opening and closing mechanism arranged in a row by moving on the frame, so that the liquid injected by the nozzle passes through the main runner, the branch runner and the nozzle in sequence and enters the upper mold of the injection mold; however, the injection machine cannot inject liquid into the lower mold of the injection mold mounted on the lower mounting base, and can only rely on manual injection by the operator. This results in the rubber injection molding machine and its main body disclosed in Chinese Patent Application No. 202311844278.2 having the defects of low efficiency and high labor intensity of operators.

[0005] Furthermore, in the rubber injection molding machine and its main body disclosed in Chinese patent application No. 202311844278.2, since the middle mold moving in and out device is pushed up by the lower mounting base, the assembly and fixing structure of the middle mold moving in and out device adopts a clamping fixing method to fix the middle mold of the injection mold on the first sliding arm and the second sliding arm, which makes the middle mold assembly and disassembly operation very troublesome.

[0006] Therefore, there is an urgent need for a rubber two-color injection molding machine and its main body to overcome one or more of the above-mentioned defects. Utility Model Content

[0007] One objective of this invention is to provide the main body of a rubber two-color injection molding machine, which reduces manual operation and improves efficiency, while also ensuring precise engagement between the second injection machine and the lower nozzle.

[0008] Another objective of this invention is to provide a rubber two-color injection molding machine to reduce manual operation and improve efficiency, while also ensuring precise engagement between the second injection machine and the lower nozzle.

[0009] To achieve the above objectives, the main body of the rubber two-color injection molding machine of this utility model includes a frame, a first injection machine, a mold opening and closing mechanism, and a second injection machine. The mold opening and closing mechanism comprises multiple mechanisms responsible for the opening and closing movements of the two-color injection mold, all arranged in a row along the X-axis. Each mold opening and closing mechanism includes a mold frame, an upper mounting body for assembling and connecting the upper mold of the two-color injection mold, and a lower mounting seat for assembling and connecting the lower mold of the two-color injection mold. The lower mounting seat is provided with a lower nozzle, a lower feed channel communicating with the lower nozzle, and a lower nozzle communicating with the lower feed channel. The lower nozzle also protrudes upwards from the lower mounting seat. The upper mounting body is provided with an upper nozzle and an upper feed channel system communicating with the upper nozzle. The first injection machine is located beside the first side of the row of mold opening and closing mechanisms along the Y-axis. The first injection machine is also slidably mounted on the frame along the X-axis, and can slide to a position corresponding to the upper nozzle of any of the mold opening and closing mechanisms. The second injection molding machine is located next to the first side of the mold opening and closing mechanism row along the Y-axis and can be raised and lowered along the Z-axis. The second injection molding machine is also slidably mounted on the frame along the X-axis. The second injection molding machine slides to a position corresponding to the lower nozzle of any of the mold opening and closing mechanisms through the cooperation of raising and lowering and sliding.

[0010] Compared with existing technologies, the design of "a second injection machine located next to the first side of the mold opening and closing mechanism row along the Y-axis and capable of being raised and lowered along the Z-axis, and the second injection machine also sliding on the frame along the X-axis", and "a lower mounting base equipped with a lower nozzle, a lower feed channel connected to the lower nozzle, and a lower nozzle connected to the lower feed channel, with the lower nozzle also protruding upwards from the lower mounting base", allows the second injection machine to slide to the position corresponding to the lower nozzle of any mold opening and closing mechanism through the combination of lifting and sliding. The second injection machine injects liquid material into the lower nozzle of the mold opening and closing mechanism, so that the liquid material injected from the lower nozzle then passes through the lower feed channel and the lower nozzle in sequence and enters the lower mold of the two-color injection mold assembled on the lower mounting base. This solves the problem of the traditional lower mold requiring manual injection by operators, thus reducing manual operation and improving efficiency. Furthermore, since the second injection machine slides to the position corresponding to the lower nozzle of any mold opening and closing mechanism through the combination of lifting and sliding, it can ensure the precise engagement of the second injection machine and the lower nozzle. Attached Figure Description

[0011] Figure 1 This is a perspective view of the rubber two-color injection molding machine of this utility model.

[0012] Figure 2 yes Figure 1 The image shown is a three-dimensional view of a two-color rubber injection molding machine at another angle.

[0013] Figure 3This is a perspective view of the mold opening and closing mechanism in the rubber two-color injection molding machine of this utility model when it is in the open state and the first sliding arm and the second sliding arm are together in the moved-out position.

[0014] Figure 4 yes Figure 3 A perspective view of the mold opening and closing mechanism in the state shown, taken from another angle.

[0015] Figure 5 yes Figure 4 The diagram shows the opening and closing mold mechanism after the first support arm, second support arm, upper mounting body, and middle mold moving in and out device are hidden.

[0016] Figure 6 yes Figure 5 3D exploded view.

[0017] Figure 7 yes Figure 6 A plan view of the lower mold heating plate, lower mold heat insulation plate, lower mold cooling plate, lower nozzle, and lower nozzle assembled together.

[0018] Figure 8 It is along Figure 7 Internal view of the section cut along line AA.

[0019] Figure 9 This is a three-dimensional view of the assembly structure of the middle mold moving in and out device in the mold opening and closing mechanism.

[0020] Figure 10 yes Figure 9 The diagram shows the plan view of the assembly structure.

[0021] Figure 11 Is Figure 3 The mold opening and closing mechanism shown also displays a two-color injection mold and a plan view viewed in the opposite direction along the Y-axis.

[0022] Figure 12 Is Figure 11 Based on this, a state diagram is also shown when the first and second sliding arms are in the moving position together.

[0023] Figure 13 yes Figure 12 A three-dimensional image.

[0024] Figure 14 Is Figure 12 Based on this, it also shows the state diagram of the lower mounting base sliding together with the middle mold moving in and out device to the preset position and the mold closing driver applying the mold closing force to the lower mounting base.

[0025] Figure 15 This is a perspective view of the second injection unit in the rubber two-color injection molding machine of this utility model.

[0026] Figure 16 yes Figure 15 The second injection molding machine is shown in a plan view viewed in reverse along the X-axis.

[0027] Figure 17 yes Figure 15 The second injection machine is shown in plan view when viewed along the positive Y-axis (arrow).

[0028] Figure 18 yes Figure 15 An exploded three-dimensional view of the second injection molding machine is shown.

[0029] Figure 19 yes Figure 18 An exploded view of the 3D structure from another angle.

[0030] Figure 20 yes Figure 15 A three-dimensional view of the assembled barrel, injection mechanism, adapter, and injection nozzle.

[0031] Figure 21 yes Figure 20 A plan view taken from behind the rotary drive of the concealed injection mechanism, in the direction indicated by the arrow next to the barrel.

[0032] Figure 22 It is along Figure 21 Internal view of the section cut along the BB line.

[0033] Figure 23 yes Figure 22 The internal diagram of the adapter and the injection nozzle on the adapter.

[0034] Figure 24 This is a perspective view of the injection screw of the second injection unit in the rubber two-color injection molding machine of this utility model. Detailed Implementation

[0035] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0036] Please see Figure 1 and Figure 2 The present invention relates to a rubber two-color injection molding machine 1000, which includes a main body 100 and a two-color injection mold 200. The two-color injection mold 200 includes an upper mold 210, a middle mold 220 and a lower mold 230. Since the two-color injection mold 200 is well known in the art, it will not be described in detail here.

[0037] and combined Figure 3 and Figure 8The main body 100 includes a frame 10, a first injection molding machine 20, a mold opening and closing mechanism 30a, and a second injection molding machine 40. The mold opening and closing mechanism 30a consists of three parts responsible for the opening and closing movement of the two-color injection mold 200. Obviously, depending on actual needs, the number of mold opening and closing mechanisms 30a can be two, four, five, or even more; therefore, it is not specified that... Figure 1 and Figure 2 As shown, all mold opening and closing mechanisms 30a are arranged together along the X-axis to form a mold opening and closing mechanism row 30; each mold opening and closing mechanism 30a includes a mold base 31, an upper mounting body 32 for assembling and connecting the upper mold 210 of the two-color injection mold 200, and a lower mounting seat 33 for assembling and connecting the lower mold 230 of the two-color injection mold 200. The lower mounting seat 33 is provided with a lower nozzle 331 and a lower feed channel 332 communicating with the lower nozzle 331 (see...). Figure 8 The upper mounting body 32 is provided with an upper nozzle 321 and an upper feed channel system connected to the upper nozzle 321. The specific structure of the upper feed channel system can be seen in the rubber injection molding machine and its main body disclosed in Chinese Patent Application No. 202311844278.2. It is composed of the main channel, the branch channel and the nozzle in the rubber injection molding machine and its main body. In addition, the upper mounting body 32 is well known in the art. The specific structure can be seen in the rubber injection molding machine and its main body disclosed in Chinese Patent Application No. 202311844278.2, so it will not be described again here.

[0038] The first injection molding machine 20 is located on the first side of the mold opening and closing mechanism row 30 along the Y-axis direction (e.g., but not limited to) Figure 1 and Figure 2 Next to the front side of the frame 10, the first injection molding machine 20 is also slidably mounted on the frame 10 along the X-axis. The first injection molding machine 20 can slide to a position corresponding to the upper nozzle 321 of any mold opening and closing mechanism 30a, so as to meet the need for the first injection molding machine 20 to inject liquid material into the upper nozzle 321 of any mold opening and closing mechanism 30a. Since the specific structure for realizing the sliding of the first injection molding machine 20 on the frame 10 is well known in the art, and details can be found in the rubber injection molding machine and its main body disclosed in Chinese Patent Application No. 202311844278.2, it will not be described in detail here.

[0039] The second injection molding machine 40 is located next to the first side of the mold opening and closing mechanism row 30a along the Y-axis, to meet the requirement that the second injection molding machine 40 and the first injection molding machine 20 are arranged on the same side relative to the mold opening and closing mechanism row 30a. The second injection molding machine 40 can be raised and lowered along the Z-axis, and it is also slidably mounted on the frame 10 along the X-axis. Therefore, the second injection molding machine 40 slides to a position corresponding to the lower nozzle 331 of any mold opening and closing mechanism 30a through the coordination of raising and lowering and sliding, so as to meet the requirement that the second injection molding machine 40 can inject liquid into the lower nozzle 331 of any mold opening and closing mechanism 30a. Therefore, in the operation of the rubber two-color injection molding machine 1000 of this utility model, the coordinated cooperation of the first injection molding machine 20 and the second injection molding machine 40 achieves the purpose of two-color injection on the upper nozzle 321 and lower nozzle 331 of each mold opening and closing mechanism 30a. More specifically, see the description below.

[0040] like Figures 3 to 6 and Figures 11 to 14 As shown, as an example, each mold opening and closing mechanism 30a further includes a quick-acting actuator 34, a mold closing actuator 35, a middle mold in / out device 36, and a lifting actuator 37. The lifting actuator 37 is used to drive the middle mold in / out device 36 to move up and down along the Z-axis. Optionally, as an example, the lifting actuator 37 is a hydraulic cylinder; obviously, it could be a pneumatic cylinder or an electric actuator depending on actual needs. Figures 11 to 14 The diagram shows a limited scope. The intermediate mold inlet / outlet device 36 is used to transfer the intermediate mold 220 of the two-color injection mold 200 into... Figure 12 and Figure 13 The move-in position and Figure 3 The movement between the indicated positions is to meet the requirements of the middle mold 220 of the two-color injection mold 200 cooperating with the lower mold 230 and the upper mold 210 respectively. The fast drive 34 and the mold closing drive 35 are each mounted on the mold base 31, which provides support for the fast drive 34 and the mold closing drive 35; the output end 341 of the fast drive 34 (see...) Figure 5 and Figure 6 ) and the output terminal 351 of the mold clamping driver 35 (see Figure 6 and Figure 14 Each is assembled and connected to the lower mounting base 33 to meet the needs of the fast drive 34 to drive the lower mounting base 33 to rise and fall quickly, and the needs of the mold closing drive 35 to apply mold closing force to the lower mounting base 33.

[0041] Therefore, driven by the fast drive 34, the mounting base 33 moves towards the upper mounting body 32. Figure 14 When the mold clamping driver 35 is in the preset position shown, it applies a clamping force to the lower mounting base 33 to ensure the reliability of the two-color injection mold 200's mold closing; alternatively, at... Figures 4 to 6 and Figures 11 to 14In this example, the mold clamping actuator 35 is a hydraulic cylinder, while the rapid actuator 34 is a pneumatic cylinder; obviously, depending on actual needs, the mold clamping actuator 35 and the rapid actuator 34 can also be other actuators well known in the art, therefore, they are not considered separately. Figures 4 to 6 and Figures 11 to 14 The speed shown is limited. It should be noted that the fast driver 34 refers to the fact that its speed is faster than the mold clamping driver 35.

[0042] Combined Figure 3 , Figure 9 and Figure 10 As an example, the intermediate mold insertion and removal device 36 is provided with an assembly groove 361 for the intermediate mold 220 of the two-color injection mold 200 to be inserted downwards or removed upwards. The assembly groove 361 extends along the Z-axis to facilitate the insertion and removal operations of the intermediate mold 220 in the intermediate mold insertion and removal device 36. Furthermore, the intermediate mold 220 is moved to... Figure 12 and Figure 13 When the indicated insertion position is reached, the lifting drive 37 is still moving from the lower mounting base 33 to... Figure 14 During the preset positioning process, the intermediate mold moving in and out device 36 is driven to perform a rising movement synchronized with the lower mounting base 33, ensuring that the lower mold 230 on the lower mounting base 33 and the intermediate mold 220 on the assembly slot 361 rise synchronously, thereby ensuring that the lower mold 230 and the intermediate mold 220 always remain in the closed mold state. Specifically, in Figure 9 and Figure 10 In this example, the assembly slot 361, from bottom to top, includes a first straight slot 3611 and a first trapezoidal slot 3612 that communicates with the first straight slot 3611 and gradually expands upwards. This design facilitates the assembly and disassembly of the intermediate mold 220 at the assembly slot 361. More specifically, in Figure 9 and Figure 10 As an example, the assembly slot 361 also includes an arc-shaped slot 3613 communicating with the first trapezoidal slot 3612, a second straight slot 3614 communicating with the arc-shaped slot 3613, and a second trapezoidal slot 3615 communicating with the second straight slot 3614 and gradually expanding upwards. The first trapezoidal slot 3612, the arc-shaped slot 3613, the second straight slot 3614, and the second trapezoidal slot 3615 are arranged sequentially from bottom to top. This design ensures the convenience of assembling and disassembling the middle mold 220 at the assembly slot 361, and effectively prevents the middle mold 220 from slipping off the assembly slot 361 under its own weight.

[0043] like Figure 3 , Figure 5 and Figure 6As shown, as an example, the lower mounting base 33 includes a lower base 33d and a lower mold heating plate 33a, a lower mold heat insulation plate 33b, and a lower mold cooling plate 33c, which are stacked and fixed together from top to bottom. The lower mold cooling plate 33c is slidably disposed on the lower base 33d along the Y-axis direction. A sliding actuator 33e is provided between the lower mold cooling plate 33c and the lower base 33d to drive the lower mold cooling plate 33c to slide relative to the lower base 33d. Therefore, by means of the sliding actuator 33e, the lower mold 230 mounted on the lower mold heating plate 33a can slide away from the mold frame 31 in the Y-axis direction, thereby facilitating the mounting and dismounting operations of the lower mold 230 on the lower mold heating plate 33a and the removal operation of the molded product. Specifically, in Figure 6 In the example shown, the sliding actuator 33e is a cylinder. Obviously, depending on the actual needs, it could also be a hydraulic cylinder or an electric actuator, etc. Therefore, it is not considered as such. Figure 6 The above is for reference only. Additionally, regarding... Figure 8 In the example shown, the lower feed channel 332 and the lower nozzle 331 are located on the lower mold cooling plate 33c, and the lower nozzle 333 passes upward through the lower mold heat insulation plate 33b and protrudes from the lower mold heating plate 33a, as shown in the diagram. Figure 8 As shown; in addition, at Figure 8 In this example, the lower feed channel 332 is a flat, straight channel to facilitate the opening and processing operation of the lower feed channel 332 on the lower mold cooling plate 33c; the lower nozzle 333 is arranged vertically so that the lower nozzle 333 is perpendicular to the lower feed channel 332.

[0044] like Figures 3 to 4 and Figures 11 to 14 As shown, as an example, the mold frame 31 includes a mold frame base 311 and a first support arm 312 and a second support arm 313, which are fixedly connected to the mold frame base 311 and spaced apart from each other. Optionally, in Figures 3 to 4 and Figures 11 to 14 In the example, the first support arm 312 and the second support arm 313 are arranged vertically, but this is not a limitation; the first support arm 312 and the second support arm 313 each protrude upward from the mold base 311; at this time, the upper mounting body 32 is assembled and connected to the first support arm 312 and the second support arm 313 respectively, so that the upper mounting body 32 is suspended directly above the mold base 311 under the support of the first support arm 312 and the second support arm 313; the lower mounting seat 33 is located in the gap 314 between the first support arm 312 and the second support arm 313, so that the lower mounting seat 33 can slide up and down in the gap 314 along the Z-axis direction; the lower mounting seat 33 is also located between the upper mounting body 32 and the mold base 311, so that the lower mounting seat 33 is arranged inside the mold base 31.

[0045] like Figure 3 and Figure 4As shown, as an example, the intermediate mold transfer device 36 includes an assembly structure 362, a first vertical wall 363 located between the first support arm 312 and the lower mounting base 33, a second vertical wall 364 located between the second support arm 313 and the lower mounting base 33, a first sliding arm 365 located above the first vertical wall 363 and slidable on the first vertical wall 363, a second sliding arm 366 located above the second vertical wall 364 and slidable on the second vertical wall 364, a connecting and fixing plate 367 connecting and fixing the first vertical wall 363 and the second vertical wall 364 together, and a device for driving the first sliding arm 365 and the second sliding arm 366 together as shown in the figure. Figure 12 and Figure 13 The move-in position shown and as Figure 3 The input / output actuator 368 switches between the shown output and output positions. The input / output actuator 368 is mounted on a second vertical wall 364, which provides support for the input / output actuator 368; alternatively, at... Figure 3 In this example, the input / output driver 368 is a horizontally arranged rotary motor that extends along the Y-axis. This design reduces the space occupied by the input / output driver 368 on the mold frame 31 in the X and Z axes. Furthermore, regarding the specific implementation of the input / output driver 368 driving the first sliding arm 365 and the second sliding arm 366 to slide together, please refer to the rubber injection molding machine and its main body disclosed in Chinese Patent Application No. 202311844278.2, and therefore will not be repeated here. It is understood that, depending on actual needs, the input / output driver 368 can also be mounted on the first vertical wall 363, therefore it is not considered... Figure 1 The above is the limit.

[0046] Combination Figure 11 , Figure 12 , Figure 13 and Figure 14 As an example, assembly structures 362 are respectively provided on the first sliding arm 365 and the second sliding arm 366, such that each of the first sliding arm 365 and the second sliding arm 366 is provided with an assembly structure 362; at this time, the assembly groove 361 is located on one side of the assembly structure 362, so that the assembly structure 362 connects the intermediate mold 220 in the injection mold 200 to both the first sliding arm 365 and the second sliding arm 366 by means of the assembly groove 361; the lifting driver 37 is used to drive the connecting fixing plate 367 to rise and fall. Furthermore, Figure 3 and Figures 12 to 14 As an example, the mold base 311 is provided with lifting guide sleeves 315 arranged on opposite sides (e.g., left and right sides) of the lifting drive 37. A lifting guide rod 316 is slidably inserted in the lifting guide sleeve 315. The lifting guide rod 316 is also fixedly connected to the connecting fixing plate 367. This design increases the smoothness and stability of the lifting of the middle mold moving in and out device 60.

[0047] Please see Figures 15 to 19 The second injection molding machine 40 includes a traveling base 41, a barrel 42, a hopper 43, an injection nozzle 44, an injection mechanism 45, a lifting base 46, a lifting drive mechanism 47, and a traveling motor 48. The traveling motor 48 is mounted on the traveling base 41, which provides support for the traveling motor 48 and allows the traveling motor 48 and the traveling base 41 to move together. Furthermore, the output end 481 of the traveling motor 48 extends along the Z-axis, and a traveling gear 482 is fixedly mounted on the output end 481. The traveling gear 482 meshes with a linear rack 11 provided on the frame 10 and extending along the X-axis. During the rotation of the traveling gear 482 driven by the traveling motor 48, the meshing transmission between the traveling gear 482 and the linear rack 11 enables the traveling base 41 and the traveling motor 48 on the traveling base 41 to move together, thus fulfilling the requirement that the second injection molding machine 40 can inject liquid into the lower nozzle 331 of the mold opening and closing mechanism 30a at different positions through movement.

[0048] The barrel 42 is connected to the hopper 43 and the injection nozzle 44 respectively to meet the needs of the operator to add raw materials into the barrel 42 through the hopper 43, and to inject the molten liquid in the barrel 42 through the injection nozzle 44; the barrel 42 is also mounted on the traveling seat 41, which provides support for the barrel 42 and meets the need for the barrel 42 to move together with the traveling seat 41.

[0049] The injection mechanism 45 is mounted on the travel base 41, which provides support for the injection mechanism 45 and ensures that the injection mechanism 45 moves with the travel base 41. The injection mechanism 45 is used to inject the liquid material in the barrel 42 through the injection nozzle 44. Optionally, in Figure 20 and Figure 22 As an example, the injection mechanism 45 includes an injection screw 451 located at least partially within the internal space 421 of the barrel 42 and a rotary driver 452 for driving the injection screw 451 to rotate. Thus, during the process of the rotary driver 452 driving the injection screw 451 to rotate, the rotating injection screw 451 pushes the liquid in the barrel 42 toward the injection nozzle 44 and ejects it through the injection nozzle 44. As another example, the rotary driver 452 is a motor. Obviously, depending on actual needs, the rotary driver 452 can also be other structures.

[0050] The lifting seat 46 can be raised and lowered relative to the traveling seat 41 in the Z-axis direction to meet the need for adjustment of the lifting seat 46 relative to the traveling seat 41. The lifting drive mechanism 47 is used to drive the lifting seat 46 to rise and fall, providing power for the raising and lowering of the lifting seat 46 relative to the traveling seat 41. Specifically, combined with... Figures 15 to 19The lifting drive mechanism 47 includes a first rotating wheel 471, a second rotating wheel 472, a winding transmission component 473, and a rotation driver 474. The rotation driver 474 is mounted on a traveling seat 41, which provides support for the rotation driver 474 and ensures that the rotation driver 474 moves with the traveling seat 41. The rotation driver 474 is used to drive the first rotating wheel 471 to rotate. Obviously, depending on actual needs, the rotation driver 474 can also drive the second rotating wheel 472 to rotate, so it is not considered as a separate component. Figure 16 and Figure 17 The following is a limited description; however, the rotary drive 474 may be a rotary motor, but is not limited to this. The first rotating wheel 471 is mounted on the first side 411 of the traveling seat 41, with the traveling seat 41 providing support for the first rotating wheel 471 and ensuring that the first rotating wheel 471 moves with the traveling seat 41. A lifting screw 475 is coaxially fixed to the first rotating wheel 471, so that the two are fixed together and their center lines coincide. The second rotating wheel 472 is mounted on the opposite second side 412 of the traveling seat 41, with the traveling seat 41 providing support for the second rotating wheel 472 and ensuring that the second rotating wheel 472 moves with the traveling seat 41. The first side 411 and the second side 412 of the traveling seat 41 are spaced apart in the Y-axis direction. A lifting screw 475' is coaxially fixed to the second rotating wheel 472, so that the two are fixed together and their center lines coincide. Each lifting screw 475 (475') is slidably fitted with a lifting nut 476 (476'), that is, the lifting screw 475 is slidably fitted with a lifting nut 476, and the lifting screw 475' is slidably fitted with a lifting nut 476'. The lifting nuts 476 (476') are fixedly mounted on the lifting seat 46. A transmission member 473 is wound around the first rotating wheel 471 and the second rotating wheel 472, so that the first rotating wheel 471, driven by the rotary driver 474, drives the second rotating wheel 472 to rotate synchronously through the transmission member 473.

[0051] Therefore, during the adjustment of the injection nozzle 44, the rotary driver 474 drives the first rotating wheel 471 and the lifting screw 475 on the first rotating shaft 471 to rotate. At the same time, the rotating first rotating wheel 471 drives the second rotating wheel 472 and the lifting screw 475' on the second rotating wheel 472 to rotate through the transmission member 473, so as to realize the synchronous rotation of the first rotating wheel 471, the second rotating wheel 472, the lifting screw 475 and the lifting screw 475'. The rotating lifting screw 475 drives the lifting nut 476 to slide on the lifting screw 475, and the rotating lifting screw 475' drives the lifting nut 476' to slide on the lifting screw 475'. Thus, the lifting seat 46 and the material cylinder 42, the material bin 43, the injection nozzle 44 and the injection mechanism 45 on the lifting seat 46 are moved and lifted together, thereby achieving the purpose of precise adjustment of the position of the injection nozzle 44. It should be noted that the cooperation between the barrel 42 and the injection screw 451, as well as the specific structures of the barrel 42 and the injection nozzle 44, are well known in the art and will not be described in detail here. Furthermore, a more detailed description of the second injection molding machine 40 is provided below.

[0052] Combination Figures 15 to 19 As an example, the rotary actuator 474, the traveling seat 41, and the lifting seat 46 are arranged sequentially along the positive Z-axis. The output end 4711 of the rotary actuator 474 faces the lifting seat 46. This design avoids the risk of collision when the rotary actuator 474 and the lifting seat 46 are arranged on the same side, and also avoids the need to make the traveling seat 41 larger in the Z-axis or X-axis direction to avoid collisions. Furthermore, the output end 4741 of the rotary actuator 474, the first rotating wheel 471, and the corresponding lifting screw 475 are coaxially fixed, meaning they are fixed together and their center lines coincide. Specifically, in Figures 15 to 19 In this example, the rotary actuator 474 is a motor. Obviously, depending on the actual needs, the rotary actuator 474 can also be a structure well known in the art, so it is not used as an example. Figures 15 to 19 The above is for illustrative purposes only. Additionally, the first pulley 471 and the second pulley 472 are each sprockets, with a chain wound around the transmission member 473 between the traveling seat 41 and the lifting seat 46; obviously, according to actual needs, the first pulley 471 and the second pulley 472 are each synchronous belt pulleys, and correspondingly, a synchronous belt wound around the transmission member 473 between the traveling seat 41 and the lifting seat 46 is used. Therefore, it is not considered... Figures 15 to 19 The above is the limit.

[0053] Combined Figures 15 to 19As an example, the third side 413 and the fourth side 414 of the traveling seat 41 are each provided with a lifting guide rail 415. The third side 413 and the fourth side 414 of the traveling seat 41 are separated in the X-axis direction. The lifting guide rail 415 on the third side 413 of the traveling seat 41 is respectively arranged in a position adjacent to the first rotating wheel 471 and the second rotating wheel 472. That is, on the third side 413 of the traveling seat 41, lifting guide rail 415 is provided in a position adjacent to the first rotating wheel 471 and the second rotating wheel 472. The lifting guide rail 415 on the fourth side 414 of the traveling seat 41 is respectively arranged in a position adjacent to the first rotating wheel 471 and the second rotating wheel 472. That is, on the fourth side 414 of the traveling seat 41, lifting guide rail 415 is provided in a position adjacent to the first rotating wheel 471 and the second rotating wheel 472. The lifting seat 46 is provided with a lifting slider 461 that cooperates with each lifting guide rail 415; by means of the cooperation of the lifting guide rails 415 and the lifting slider 461 arranged around the perimeter, the sliding connection between the lifting seat 46 and the traveling seat 41 around the perimeter is increased, thereby improving the smoothness and stability of the lifting seat 46 relative to the traveling seat 41.

[0054] like Figures 15 to 21 As shown, as an example, the end of the barrel 42 is connected to an adapter 49 extending along the Z-axis. Furthermore... Figure 22 and Figure 23 As an example, the adapter 49 has a conical channel 491 that connects to the internal space 421 of the barrel 42 and an extension channel 492 that connects to the conical channel 491 and extends along the Z-axis. The conical channel 491 is arranged to gradually narrow away from the barrel 42. The injection nozzle 44 is mounted on the adapter 49 and connects to the extension channel 492. The end of the injection screw 451 has a conical head 453 that rotates with the injection screw 451. The conical head 453 fits into the conical channel 491 and has multiple arc-shaped notches 4531 arranged at intervals in the rotation direction of the conical head 453 (see...). Figure 22 and Figure 24 This design ensures that the liquid material within the internal space 421 of the barrel 42 can only enter the conical channel 491 through the arc-shaped notch 4531. Combined with the conical fit between the conical head 453 and the conical channel 491, and the rotation of the conical head 453 following the injection screw 451, the liquid material passing through the arc-shaped notch 4531 is pressurized and accelerated, thereby improving the ability of the liquid material to be ejected through the injection nozzle 44. Specifically, in Figure 22 and Figure 23As an example, the adapter 49 also has an intermediate curved channel 493 located between the extension channel 492 and the conical channel 491. The intermediate curved channel 493 is circular to facilitate its manufacturing on the adapter 49. The intermediate curved channel 493 communicates with both the extension channel 492 and the conical channel 491. At this time, the conical head 453 is also partially located in the intermediate curved channel 493. This design causes the conical head 453 to partially extend out of the conical channel 491, further increasing the pressure and speed of the liquid fed into the conical channel 491 via the arc-shaped notch 4531. More specifically, in Figure 22 and Figure 23 In this example, the extension channel 492 is also a circular channel to facilitate the manufacturing and processing of the extension channel 492 on the adapter 49; obviously, depending on actual needs, the extension channel 492 can also be other shapes well known in the art, therefore, it is not considered... Figure 22 and Figure 23 The above is the limit.

[0055] Compared with the prior art, by using a design that includes "a second injection molding machine 40 located next to the first side of the mold opening and closing mechanism row 30 along the Y-axis and capable of being raised and lowered along the Z-axis, the second injection molding machine 40 is also slidably mounted on the frame 10 along the X-axis," and "a lower mounting base 33 is provided with a lower nozzle 331, a lower feed channel 332 communicating with the lower nozzle 331, and a lower nozzle 333 communicating with the lower feed channel 332, the lower nozzle 333 also protruding upwards from the lower mounting base 33," the second injection molding machine 40 can slide to a position corresponding to the lower nozzle 331 of any mold opening and closing mechanism 30a through the cooperation of raising and lowering, and then... The second injection machine 40 injects liquid material into the lower nozzle 331 of the mold opening and closing mechanism 30a, so that the liquid material injected by the lower nozzle 331 passes through the lower feed channel 332 and the lower nozzle 333 in sequence and enters the lower mold 230 of the two-color injection mold 200, which is mounted on the lower mounting base 33. This solves the problem that the lower mold 230 requires manual injection by the operator, thus reducing manual operation and improving efficiency. Furthermore, since the second injection machine 40 slides to the position corresponding to the lower nozzle 331 of any mold opening and closing mechanism 30a through the cooperation of lifting and sliding, it can ensure the precise engagement of the second injection machine 40 and the lower nozzle 331.

[0056] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A main body of a rubber two-color injection molding machine, comprising a frame, a first injection machine, and multiple mold opening and closing mechanisms for the opening and closing movement of the two-color injection mold, all of which are arranged in a row along the X-axis. Each mold opening and closing mechanism includes a mold frame, an upper mounting body for assembling and connecting the upper mold of the two-color injection mold, and a lower mounting base for assembling and connecting the lower mold of the two-color injection mold. The upper mounting body is provided with an upper nozzle and an upper feed channel system communicating with the upper nozzle. The first injection machine is located next to a first side of the row of mold opening and closing mechanisms along the Y-axis. The first injection machine is also slidably mounted on the frame along the X-axis and can slide to a position corresponding to the upper nozzle of any of the mold opening and closing mechanisms. The main body of the rubber two-color injection molding machine also includes a second injection machine located next to the first side of the mold opening and closing mechanism along the Y-axis and capable of being raised and lowered along the Z-axis. The second injection machine is also slidably mounted on the frame along the X-axis. The lower mounting base is provided with a lower nozzle, a lower feed channel communicating with the lower nozzle, and a lower nozzle communicating with the lower feed channel. The lower nozzle is also exposed upwards from the lower mounting base. The second injection machine can slide to a position corresponding to the lower nozzle of any of the mold opening and closing mechanisms through the cooperation of raising and lowering and sliding.

2. The main body of the rubber two-color injection molding machine according to claim 1, characterized in that, The second injection molding machine includes a traveling seat slidably mounted on the frame along the X-axis, a material cylinder located above the traveling seat, a material hopper communicating with the material cylinder, an injection nozzle communicating with the material cylinder, an injection mechanism for ejecting liquid from the material cylinder through the injection nozzle, a lifting seat that can be raised and lowered relative to the traveling seat in the Z-axis direction, and a lifting drive mechanism for driving the lifting seat to rise and fall. The injection mechanism and the material cylinder are each mounted on the lifting seat.

3. The main body of the rubber two-color injection molding machine according to claim 2, characterized in that, The lifting drive mechanism includes a first rotating wheel mounted on a first side of the traveling seat, a second rotating wheel mounted on a second side opposite to the traveling seat, a transmission member wound around the first and second rotating wheels, and a rotation driver for driving the first or second rotating wheel to rotate. The rotation driver is mounted on the traveling seat. The first and second sides of the traveling seat are spaced apart in the Y-axis direction. Each of the first and second rotating wheels is coaxially fixed with a lifting screw. Each lifting screw is slidably fitted with a lifting nut, and the lifting nut is fixedly mounted on the lifting seat.

4. The main body of the rubber two-color injection molding machine according to claim 3, characterized in that, The third and fourth sides of the walking seat are each provided with lifting guide rails. The lifting guide rails on the third side of the walking seat are respectively arranged in positions adjacent to the first rotating wheel and the second rotating wheel. The lifting guide rails on the fourth side of the walking seat are respectively arranged in positions adjacent to the first rotating wheel and the second rotating wheel. The third and fourth sides of the walking seat are separated in the X-axis direction. The lifting seat is correspondingly provided with a lifting slider that cooperates with the sliding sleeve of each lifting guide rail.

5. The main body of the rubber two-color injection molding machine according to claim 2, characterized in that, The second injection molding machine also includes a travel motor mounted on the travel base, the output end of the travel motor extending along the Z-axis direction, and a travel gear fixedly mounted on the output end of the travel motor; a linear rack extending along the X-axis direction is correspondingly provided on the frame, and the linear rack meshes with the travel gear for transmission.

6. The main body of the rubber two-color injection molding machine according to claim 2, characterized in that, The end of the barrel is connected to an adapter seat extending along the Z-axis. The adapter seat has a conical channel communicating with the internal space of the barrel, an extension channel extending along the Z-axis, and a circular intermediate curved channel located between the extension channel and the conical channel. The intermediate curved channel communicates with both the extension channel and the conical channel. The conical channel gradually narrows in the direction away from the barrel. The injection nozzle is mounted on the adapter seat and communicates with the extension channel. The injection mechanism includes an injection screw located at least partially in the internal space of the barrel and a rotary actuator for driving the injection screw to rotate. The end of the injection screw has a conical head that rotates with the injection screw and extends into the conical channel. The conical head is also partially located in the intermediate curved channel. The conical head has multiple arc-shaped notches arranged spaced apart in the rotation direction of the conical head.

7. The main body of the rubber two-color injection molding machine according to claim 1, characterized in that, The lower mounting base includes a lower base and a lower mold heating plate, a lower mold heat insulation plate, and a lower mold cooling plate, which are stacked and fixed together from top to bottom. The lower mold cooling plate is slidably disposed on the lower base along the Y-axis direction. A sliding actuator is provided between the lower mold cooling plate and the lower base to drive the lower mold cooling plate to slide relative to the lower base. The lower feed channel and the lower nozzle are located on the lower mold cooling plate. The lower feed channel is a flat, straight channel. The lower nozzle passes upward through the lower mold heat insulation plate and protrudes from the lower mold heating plate; the lower nozzle is arranged vertically.

8. The main body of the rubber two-color injection molding machine according to claim 7, characterized in that, The mold opening and closing mechanism further includes a mold inlet and outlet device for moving the mold in the two-color injection mold between an inlet position and an outlet position, a lifting driver for raising and lowering the mold inlet and outlet device along the Z-axis direction, and a quick driver and a mold closing driver each mounted on the mold frame; the output ends of both the quick driver and the mold closing driver are assembled and connected to the lower mounting base, and the mold closing driver applies a mold closing force to the lower mounting base when the quick driver drives the lower mounting base to move toward a preset position closer to the upper mounting body. The intermediate mold insertion and removal device is provided with an assembly groove for the intermediate mold of the two-color injection mold to be inserted downwards or removed upwards. The assembly groove extends along the Z-axis direction. When the intermediate mold moves to the insertion position, the lifting driver also drives the intermediate mold insertion and removal device to perform a lifting movement that is synchronized with the lower mounting seat as the lower mounting seat moves to the preset position.

9. The main body of the rubber two-color injection molding machine according to claim 8, characterized in that, The assembly groove, from bottom to top, includes a first straight groove, a first trapezoidal groove that communicates with the first straight groove and gradually expands upward, an arc-shaped groove that communicates with the first trapezoidal groove, a second straight groove that communicates with the arc-shaped groove, and a second trapezoidal groove that communicates with the second straight groove and gradually expands upward.

10. A rubber two-color injection molding machine, comprising a two-color injection mold, characterized in that, The rubber two-color injection molding machine further includes a body according to any one of claims 1 to 9, wherein each of the mold opening and closing mechanisms corresponds to one of the two-color injection molds.

Images