Rotary table, injection mold and injection system
By employing pneumatic components and triggering parts in the rotary injection mold, automatic independent ejection of each side during rotation is achieved, solving the problem of hydraulic circuit limitations in the prior art and promoting the miniaturization of the mold.
Patent Information
- Application Number
- CN202411417876.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2044-10-11
AI Technical Summary
When existing rotary injection molds require independent ejection on each side, the number of oil circuits on the rotary table limits the ability to achieve automatic and independent ejection, and additional control signals or manual control are required.
The design employs pneumatic components and triggering parts. The pneumatic components are triggered during the rotation of the rotating body to push the first top block, achieving independent ejection on each side and avoiding the need for additional control signals.
It enables automatic independent ejection on each side during rotation, reducing the limitation on the number of oil channels and contributing to the miniaturization of mold design.
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Figure CN119238832B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of pushing devices for injection molds, and particularly to rotary tables, injection molds, and injection systems. Background Technology
[0002] In rotary injection molding applications, after each injection, the rear mold of the injection mold typically ejects the molded part from the rear mold via hydraulic cylinders. Each set of hydraulic cylinders can only drive one ejector block to eject or retract through one hydraulic circuit. However, in daily production, due to the size limitations of the rotary table itself, most injection molding machines have a limited number of hydraulic circuits provided to the rear mold rotary table. For example, a rotary table with four sets of hydraulic circuits (4 inlets and 4 outlets) can only control the actions of four hydraulic cylinders simultaneously. If each side of the rear mold requires two independent ejection actions of the ejector blocks, i.e., each side requires two independent ejection actions, additional hydraulic circuits need to be designed. Furthermore, the ejection device implemented using hydraulic cylinders requires additional control signals or manual control during ejection, and automatic ejection of the ejector blocks cannot be achieved solely through mechanical structures. Therefore, there is an urgent need for a rotary table device that can independently eject ejector blocks from each side without requiring additional control signals during rotation. Summary of the Invention
[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a rotary table, an injection mold, and an injection system that can automatically and independently eject ejector blocks from each side during rotation.
[0004] In a first aspect, embodiments of the present invention provide a rotary table, comprising:
[0005] The platform includes a rotating body, a rotating shaft, and an upper transverse component; one end of the rotating shaft is fixed to the lower part of the upper transverse component, and the rotating body is rotatably sleeved on the rotating shaft; two trigger push blocks are also provided below the upper transverse component.
[0006] The pushing device includes multiple triggering parts, multiple sets of pneumatic components, and multiple first top blocks; each triggering part is retractably disposed on the top surface of the rotating body, and each first top block is retractably embedded in the side surface of the rotating body; the triggering parts and the first top blocks are connected through the pneumatic components, the first end of each set of pneumatic components is connected to one triggering part, and the second end of each set of pneumatic components is connected to multiple first top blocks, and the pneumatic components are embedded in the rotating body; when a triggering part is squeezed, the triggering part can trigger the pneumatic components to push the first top blocks connected to the pneumatic components, causing the first top blocks to push out the side surface of the rotating body;
[0007] The driving device is capable of driving the rotating body to rotate around the rotating shaft; when the rotating body rotates, each of the triggering parts can pass under the triggering push block in sequence and be squeezed by the triggering push block.
[0008] In some embodiments of the present invention, each set of pneumatic components includes a pneumatic passage embedded in the rotating body, an air intake passage located outside the rotating body, and an air intake device. The air intake device is used to introduce gas into the air intake passage, and the pneumatic passage is embedded in the rotating body. The top surface of the rotating platform is provided with a plurality of first mounting cavities, and each triggering part is disposed in one of the first mounting cavities. Each first mounting cavity is provided with a first channel, and each triggering part is provided with a second channel. The first channel communicates with the air intake passage, and the second channel communicates with the pneumatic passage. When the triggering part is not compressed, the second channel is located above the first channel, and the pneumatic passage and the air intake passage are not connected. When the triggering part is compressed, the second channel is moved to a position aligned with the first channel and communicates with the first channel. Each side of the rotating platform is provided with a plurality of second mounting cavities, and each first top block is disposed in a second mounting cavity, and the second mounting cavity communicates with the pneumatic passage.
[0009] In some embodiments of the present invention, the rotary table includes a plurality of trigger push blocks, each trigger push block being detachably disposed below the upper transverse member; the first end of each pneumatic passage is connected to a first mounting cavity, and the other end of each pneumatic passage is connected to any number of second mounting cavities on each side of the rotating body.
[0010] In some embodiments of the present invention, each of the first mounting cavities is provided with an elastic element, and the triggering part is mounted on the elastic element; when the triggering part is not squeezed, the elastic element can push the triggering part out of the first mounting cavity.
[0011] In some embodiments of the present invention, the outer edges of the triggering component, the first top block, the first mounting cavity, and the second mounting cavity are all provided with sealing mounting grooves; a sealing ring is fitted on the sealing mounting groove.
[0012] In some embodiments of the present invention, each side of the rotating body is further provided with a mold mounting groove, which is used to fix the rear mold of the injection mold; the rear mold is provided with a through hole, the position of which corresponds to the position of the first ejector block; when the first ejector block is ejected, it can eject the injection molded part in the rear mold; the injection mold also includes a front mold, which can push the first ejector block in the ejected state back when the front mold and the rear mold are closed.
[0013] In some embodiments of the present invention, the rotary table further includes multiple sets of hydraulic cylinder pushing devices. Each set of hydraulic cylinder pushing devices includes a hydraulic cylinder top block and a hydraulic cylinder driving device. The hydraulic cylinder top block and the hydraulic cylinder pushing device are connected by an oil circuit. The hydraulic cylinder top block is embedded in each side of the rotating body, and the hydraulic cylinder driving device is used to drive the hydraulic cylinder top block to be pushed out of the rotating body.
[0014] In some embodiments of the present invention, the upper transverse member is provided with a sleeve mounting hole, the upper transverse member is sleeved on the mounting rod of the injection mold through the sleeve mounting hole, and the upper transverse member can slide on the mounting rod; the triggering part is detachably disposed on the upper transverse member.
[0015] Secondly, embodiments of the present invention also provide an injection mold with a rotary table, characterized in that the injection mold with a rotary table includes the rotary table described in the above-mentioned embodiments.
[0016] Thirdly, embodiments of the present invention also provide an injection molding system, the injection molding system including the injection mold with a rotary table as described in the above-mentioned embodiments.
[0017] The rotary table according to embodiments of the present invention has at least the following beneficial effects: A trigger push block is further provided below the upper transverse member of the rotary table provided in the embodiments of the present invention. Each triggering part is retractably disposed on the top surface of the rotating body, and each first top block is retractably embedded in the side surface of the rotating body. The triggering parts and the first top blocks are connected by a pneumatic assembly. When the rotating body of the driving device rotates, each triggering part can sequentially pass below the trigger push block and be pressed by the trigger push block. When the triggering part is pressed, the triggering part can trigger the pneumatic assembly to push the first top block connected to the pneumatic assembly, causing the first top block to be pushed out from the side surface of the rotating body. The independent pushing out of the first top block on each side surface during the rotation of the rotary table is achieved through the trigger push block, triggering parts, and pneumatic assembly, without the need for additional control signals. Attached Figure Description
[0018] Figure 1 This is an overall schematic diagram of a rotary table provided in one embodiment of the present invention;
[0019] Figure 2 This is a front view of a rotary table provided in one embodiment of the present invention;
[0020] Figure 3 This is a schematic diagram of a pneumatic component provided in one embodiment of the present invention;
[0021] Figure 4 This is a schematic diagram of a triggering component in a non-ventilated state according to an embodiment of the present invention;
[0022] Figure 5 This is a schematic diagram of the first top block in a non-ventilated state according to an embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the triggering component in a ventilated state according to an embodiment of the present invention;
[0024] Figure 7 This is a schematic diagram of the first top block in a ventilated state according to an embodiment of the present invention.
[0025] Reference numerals: Rotating body 100, first mounting cavity 110, first channel 111, elastic element 112, second mounting cavity 120, rotating shaft 130, upper transverse component 140, trigger push block 141, sleeve rod mounting hole 142, mold mounting groove 150, trigger part 210, second channel 211, first top block 220, pneumatic passage 231, air inlet passage 232, sealing ring 300, cylinder top block 400. Detailed Implementation
[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0028] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0030] In this embodiment of the invention, a trigger push block is also provided below the upper transverse member of the rotary table. Each trigger component is retractably disposed on the top surface of the rotating body, and each first top block is retractably embedded in the side surface of the rotating body. The trigger components and the first top blocks are connected by a pneumatic assembly. When the rotating body of the drive device rotates, each trigger component can pass under the trigger push block in sequence and be squeezed by the trigger push block. When the trigger component is squeezed, the trigger component can trigger the pneumatic assembly to push the first top block connected to the pneumatic assembly, causing the first top block to be pushed out of the side surface of the rotating body. The independent ejection of the first top block on each side surface during the rotation of the rotary table is achieved by the trigger push block, trigger components, and pneumatic assembly, without the need for additional control signals.
[0031] The control method of the present invention will be further described below with reference to the accompanying drawings.
[0032] Reference Figure 1 , Figure 2 , Figures 4-7 , Figure 1 This is an overall schematic diagram of a rotary table provided in an embodiment of the present invention. Figure 2 This is a front view of a rotary table provided in an embodiment of the present invention. The rotary table includes, but is not limited to, the following structures:
[0033] The platform includes a rotating body 100, a rotating shaft 130, and an upper transverse member 140; one end of the rotating shaft 130 is fixed to the lower part of the upper transverse member 140, and the rotating body 100 is rotatably sleeved on the rotating shaft 130; two trigger push blocks 141 are also provided below the upper transverse member 140.
[0034] The pushing device includes multiple triggering parts 210, multiple sets of pneumatic components, and multiple first top blocks 220. Each triggering part 210 is retractably disposed on the top surface of the rotating body 100, and each first top block 220 is retractably embedded in the side surface of the rotating body 100. The triggering parts 210 and the first top blocks 220 are connected by pneumatic components. The first end of each set of pneumatic components is connected to one triggering part 210, and the second end of each set of pneumatic components is connected to multiple first top blocks 220. The pneumatic components are embedded in the rotating body 100. When the triggering part 210 is squeezed, the triggering part 210 can trigger the pneumatic components to push the first top blocks 220 connected to the pneumatic components, causing the first top blocks 220 to be pushed out from the side surface of the rotating body 100.
[0035] The driving device can drive the rotating body 100 to rotate around the rotating shaft 130; when the rotating body 100 rotates, each triggering part 210 can pass under the triggering push block 141 in sequence and be squeezed by the triggering push block 141.
[0036] It should be noted that the platform involved in this embodiment of the invention includes a rotating body 100 capable of rotating around a pivot 130. The shape of the rotating body 100 includes a cube or other reasonable shape suitable for setting up a mold, and there is no limitation thereto. One end of the pivot 130 is disposed on the upper transverse member 140, so that the rotating body 100 can move with the upper transverse member 140. Further, each set of pushing devices includes a triggering part 210, a pneumatic assembly, and a plurality of first top blocks 220, wherein, as Figures 4-7 As shown, the triggering component 210 is disposed on the top of the rotating body 100. When the driving device drives the rotating body 100 to rotate, each triggering component 210 can pass under the triggering push block 141 in sequence and be squeezed by the triggering push block 141. When the triggering component 210 is squeezed, the pneumatic component will push the first top block 220 disposed on each side of the rotating table, causing the first top block 220 to be pushed out from the side. It can be understood that in the above process, after each triggering switch is squeezed by the triggering push block 141, the first top block 220 pushed by the pneumatic component can be all the first top blocks 220 on one side of the rotating body 100, or any one or several first top blocks 220 on one side of the rotating body 100 can be pushed out, or one or several first top blocks 220 corresponding to any number of sides of the rotating body 100 can be pushed out simultaneously. For example, in one embodiment of the present invention, the rotating body 100 is a cube, with four first top blocks 220 provided on each of its four sides. When the triggering part 210 corresponding to the pushing device is squeezed, the pushing device can, according to the connection relationship between the pneumatic component and the first top blocks 220, cause the four first top blocks 220 on one side of the rotating body 100 to be pushed out simultaneously; alternatively, the four first top blocks 220 on each side can be pushed out simultaneously. Figure 2 The first top block 220 located in the upper right corner of the four first top blocks 220 within the dashed box extends out simultaneously, thus achieving independent ejection of the first top block 220 on each side.
[0037] It should be noted that, based on the above-described embodiments of the rotary table, through the cooperation of the pushing device and the table body, during the rotation process, it is possible to eject all the first top blocks 220 on one side of the rotating body 100, and also to eject the top blocks corresponding to each side position on the rotating body 100 independently. Compared with the rotary table implemented by the hydraulic cylinder, it is not necessary to reserve a large volume for the hydraulic circuit to achieve the independent ejection of the top blocks, which is beneficial to the miniaturization of the injection mold.
[0038] Reference Figures 3-7In some embodiments of the present invention, each pneumatic assembly includes a pneumatic passage 231 embedded in the rotating body 100, an air intake passage 232 located outside the rotating body 100, and an air intake device. The air intake device is used to introduce gas into the air intake passage 232, and the pneumatic passage 231 is embedded in the rotating body 100. The top surface of the rotating platform is provided with a plurality of first mounting cavities 110, and each triggering component 210 is disposed in one first mounting cavity 110. Each first mounting cavity 110 is provided with a first channel 111, and each triggering component 210 is provided with a second channel 211. 1. The first channel 211 is connected to the air intake passage 232, and the second channel 211 is connected to the pneumatic passage 231. When the triggering part 210 is not squeezed, the second channel 211 is located above the first channel 111, thus closing the pneumatic passage 231 and the air intake passage 232. When the triggering part 210 is squeezed, the second channel 211 is moved to a position aligned with the first channel 111 and connected to the first channel 111. Each side of the rotary table is provided with a plurality of second mounting cavities 120, and each first top block 220 is disposed in the second mounting cavity 120, and the second mounting cavity 120 is connected to the pneumatic passage 231.
[0039] It should be noted that, in this embodiment of the invention, the independent ejection of the first top block 220 on each side is achieved through a pneumatic assembly. The pneumatic assembly includes a pneumatic passage 231, an air inlet passage 232, and an air intake device (not shown in the figure). The pneumatic passage 231 is embedded inside the rotating body 100, while the air inlet passage 232 and the air intake device are located outside the rotating body 100. Since the overall volume of the pneumatic passage 231 is small, only a few air passages need to be opened inside the rotating body 100, eliminating the need to embed the complex and bulky hydraulic cylinder device into the rotating body 100, thus significantly saving the volume of the rotating body 100. Furthermore, in this embodiment of the invention, the triggering part 210 and the first top block 220 are respectively disposed in the first mounting cavity 110 and the second mounting cavity 120. When the triggering part 210 is compressed, the first mounting cavity 110 is connected to the second mounting cavity 120 through the pneumatic passage 231, and the gas introduced by the air intake device can be transferred to the second mounting cavity 120 to eject the first top block 220. Furthermore, referring to Figure 4 , Figure 5 When the second channel 211 on the trigger component 210 is not aligned with the first channel 111 of the first mounting cavity 110, the gas introduced by the air intake device cannot enter the pneumatic passage 231, and the first top block 220 is placed in the second mounting cavity 120; refer to Figure 6 , Figure 7 When the second channel 211 on the trigger component 210 is aligned with the first channel 111 of the first mounting cavity 110, the first mounting cavity 110 can be connected to the air intake passage 232, and the gas introduced by the air intake device can then flow along... Figure 5The arrow in the middle enters the pneumatic passage 231, which will realize the independent ejection of the first top block 220 on each side when the trigger part 210 is pressed by the trigger push block 141 during the rotation of the rotating body 100.
[0040] Reference Figures 2-3 In some embodiments of the present invention, the rotary table includes a plurality of trigger push blocks 141, each trigger push block 141 being detachably disposed below the upper transverse member 140; the first end of each pneumatic passage 231 is connected to a first mounting cavity 110, and the other end of each pneumatic passage 231 is connected to any number of second mounting cavities 120 on each side of the rotating body 100.
[0041] It should be noted that the first end of the pneumatic passage 231 is connected to a first mounting cavity 110, and the second end can be connected to multiple second mounting cavities 120. For example, as Figure 2 As shown, in one embodiment of the present invention, the rotating body 100 is a cube, with four first top blocks 220 provided on each of its four sides. When the triggering part 210 corresponding to the pushing device is squeezed, the pushing device can, according to the connection relationship between the pneumatic component and the first top blocks 220, simultaneously eject the four first top blocks 220 in all the second mounting cavities 120 on the rotating body 100; alternatively, the four first top blocks 220 located on each side can be ejected simultaneously. Figure 2 The first top block 220 located in the upper right second mounting cavity 120 of the four first top blocks 220 within the dashed box extends simultaneously; alternatively, all the first top blocks 220 in the second mounting cavities 120 on all four sides can extend simultaneously. Further, in the two schemes provided in the above embodiments, the design schemes of the pneumatic passage 231 within the rotating body 100 are different, and the required number of triggering parts 210 and triggering push blocks 141 are also different. Therefore, the triggering push blocks 141 are designed to be detachable. When multiple triggering push blocks 141 are needed to simultaneously press the triggering parts 210, the corresponding number of triggering push blocks 141 are installed on the upper transverse structure. For example, in another embodiment of the present invention, after the four triggering parts 210 are pressed, they can respectively cause… Figure 2 The first top blocks 220 located in the dotted boxes on each side of the rotating body 100 are ejected independently (top left, bottom left, top right, and bottom right). If all the first top blocks 220 on each side need to be ejected in a certain processing flow, four trigger push blocks 141 can be installed at the working positions of the corresponding four trigger parts 210, so that the four first top blocks 220 located in the top left, bottom left, top right, and bottom right on each side can be ejected simultaneously during the rotation of the rotary table. It can be understood that if only the top left and bottom right first top blocks 220 need to be ejected, then only two trigger push blocks 141 need to be installed in the corresponding positions, and so on.
[0042] In some embodiments of the present invention, each first mounting cavity 110 is provided with an elastic element 112, and a triggering part 210 is mounted on the elastic element 112; when the triggering part 210 is not squeezed, the elastic element 112 can push the triggering part 210 out of the first mounting cavity 110.
[0043] It should be noted that an elastic element 112 is provided in the first mounting cavity 110. The elastic force provided by the elastic element 112 maintains the trigger part 210 in the normally ejected state, and allows the trigger part 210 to be squeezed rather than fixed in the first mounting cavity 110.
[0044] In some embodiments of the present invention, the outer edges of the trigger component 210, the first top block 220, the first mounting cavity 110 and the second mounting cavity 120 are all provided with sealing mounting grooves; a sealing ring 300 is sleeved on the sealing mounting groove.
[0045] It should be noted that, in order to prevent air leakage at the positions of triggering part 210, first top block 220, first mounting cavity 110 and second mounting cavity 120 during the process of the air intake device venting to push the first top block 220 out of the second mounting cavity 120, thus affecting the pushing effect of the first top block 220, a sealing ring 300 mounting groove is provided on the outer edge of these structures, and the sealing ring 300 is fitted in it.
[0046] Reference Figure 5 , Figure 7 In some embodiments of the present invention, each side of the rotating body 100 is further provided with a mold mounting groove 150, which is used to fix the rear mold of the injection mold; the rear mold is provided with a through hole, the position of which corresponds to the position of the first ejector block 220; when the first ejector block 220 is ejected, it can eject the injection molded part in the rear mold; the injection mold also includes a front mold, and when the front mold and the rear mold are closed, the first ejector block 220 in the ejected state can be pushed back.
[0047] It should be noted that the rotary table provided in this embodiment of the invention is mainly used for rotary injection molds. The mold mounting groove 150 is used to fix the rear mold of the injection mold. When the first ejector block 220 is ejected, it can eject the injection molded part inside the rear mold. It can be understood that the device for restoring the first ejector block 220 to its original position after ejection does not need to be set inside the rotary table. The first ejector block 220 can be pushed back when the front mold and the rear mold of the injection molding machine are closed.
[0048] Reference Figure 1In some embodiments of the present invention, the rotary table further includes multiple sets of hydraulic cylinder pushing devices. Each set of hydraulic cylinder pushing devices includes a hydraulic cylinder top block 400 and a hydraulic cylinder driving device. The hydraulic cylinder top block 400 and the hydraulic cylinder pushing device are connected by an oil circuit. The hydraulic cylinder top block 400 is embedded in each side of the rotating body 100, and the hydraulic cylinder driving device is used to drive the hydraulic cylinder top block 400 to be pushed out from the rotating body 100.
[0049] It should be noted that since the pushing device provided in this embodiment of the invention uses a pneumatic passage 231, which occupies a small volume of the rotating body 100, the pneumatic passage 231 and a certain number of cylinder-related devices can be simultaneously installed in the rotating body 100 when needed.
[0050] Reference Figure 1 In some embodiments of the present invention, the upper transverse member 140 is provided with a sleeve mounting hole 142, the upper transverse member 140 is sleeved on the mounting rod of the injection mold through the sleeve mounting hole 142, and the upper transverse member 140 can slide on the mounting rod; the triggering part 210 is detachably disposed on the upper transverse member 140.
[0051] It should be noted that under some injection molding working conditions, the rotating body 100 needs to be horizontally translated during the injection molding process. Therefore, by setting the sleeve mounting hole 142 on the upper transverse component 140, the horizontal or vertical rod sleeved along the edge of the rotating table can be moved horizontally or vertically.
[0052] Secondly, embodiments of the present invention provide an injection mold with a rotary table, wherein the injection mold with the rotary table includes the rotary table of the above-described embodiments.
[0053] It should be noted that the rear mold of the injection mold provided in the above embodiments is provided on each side of the rotating body, and the injection molded part in the mold can be ejected from the rear mold by the first ejector block or the hydraulic cylinder ejector block.
[0054] Thirdly, embodiments of the present invention provide an injection molding system, which includes an injection mold with a rotary table as described in the above-described embodiments.
[0055] The following is a specific embodiment of the present invention.
[0056] like Figure 1The rotary table shown includes a table body, a pushing device, and a driving device. The table body includes a rotating body 100, a rotating shaft 130, and an upper transverse member 140. One end of the rotating shaft 130 is fixed to the lower part of the upper transverse member 140, and the rotating body 100 is rotatably fitted onto the rotating shaft 130. A detachable trigger push block 141 is also provided below the upper transverse member 140, and one or more can be installed as needed. The pushing device includes multiple trigger parts 210, multiple sets of pneumatic components, and multiple first top blocks 220. The pneumatic components include a pneumatic passage 231 embedded in the rotating body 100, an air intake passage 232 located outside the rotating body 100, and an air intake device. Each pneumatic passage 231 can be pre-designed so that its first end is connected to the first mounting cavity 110 and the air intake passage 232. The second end of passage 231 is connected to any number of second mounting cavities 120 at any position. When the driving device drives the rotating body 100 to rotate along the rotating shaft 130, each triggering part 210 will pass under the upper triggering push block 141 in sequence and be squeezed by the triggering push block 141. The triggering push block 141 squeezes the elastic member 112 provided below the triggering part 210. At this time, the second channel 211 provided on the triggering part 210 is aligned with the first channel 111 of the first mounting cavity 110, so that the gas introduced by the air intake device can pass through the first end of the first channel 111 in sequence -> the second channel 211 -> the second end of the first channel 111 -> the pneumatic passage 231 -> the second mounting cavity 120, until the first top block 220 connected to the pneumatic passage 231 is pushed out of the second mounting cavity 120. To ensure the force of the first ejector block 220 during ejection, sealing mounting grooves are provided on the outer edges of the trigger part 210, the first ejector block 220, the first mounting cavity 110, and the second mounting cavity 120. Sealing rings 300 are fitted onto these sealing mounting grooves to prevent air leakage from the pneumatic passage 231. The rotating body 100 is provided with a mold mounting groove 150 for mounting the rear mold of the injection mold. A through hole is provided on the rear mold, the position of which corresponds to the position of the first ejector block 220. When the first ejector block 220 ejects, it can eject the injection molded part from the rear mold. When the front and rear molds of the injection molding machine close, it can push the first ejector block 220 back into the second mounting cavity 120. Under some injection molding conditions, the rotating body 100 needs to move horizontally during injection. The sleeve mounting hole 142 provided on the upper transverse member 140 can help realize the horizontal or vertical movement of the horizontal or vertical rods fitted along the edge of the rotating table.
[0057] The above provides a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.
Claims
1. A rotary table, characterized in that, include: The platform includes a rotating body, a rotating shaft, and an upper transverse component; one end of the rotating shaft is fixed to the lower part of the upper transverse component, and the rotating body is rotatably sleeved on the rotating shaft; two trigger push blocks are also provided below the upper transverse component. The pushing device includes multiple triggering parts, multiple sets of pneumatic components, and multiple first top blocks; each triggering part is retractably disposed on the top surface of the rotating body, and each first top block is retractably embedded in the side surface of the rotating body; the triggering parts and the first top blocks are connected through the pneumatic components, the first end of each set of pneumatic components is connected to one triggering part, and the second end of each set of pneumatic components is connected to multiple first top blocks, and the pneumatic components are embedded in the rotating body; when a triggering part is squeezed, the triggering part can trigger the pneumatic components to push the first top blocks connected to the pneumatic components, causing the first top blocks to push out the side surface of the rotating body; The driving device is capable of driving the rotating body to rotate around the rotating axis; when the rotating body rotates, each of the triggering parts can pass under the triggering push block in sequence and be squeezed by the triggering push block; Each set of pneumatic components includes a pneumatic passage embedded in the rotating body, an air intake passage located outside the rotating body, and an air intake device. The air intake device is used to introduce gas into the air intake passage, and the pneumatic passage is embedded in the rotating body. The top surface of the rotating platform is provided with multiple first mounting cavities, and each triggering part is disposed in one of the first mounting cavities. Each first mounting cavity is provided with a first channel, and each triggering part is provided with a second channel. The first channel communicates with the air intake passage, and the second channel communicates with the pneumatic passage. When the triggering part is not compressed, the second channel is located above the first channel, and the pneumatic passage and the air intake passage are not connected. When the triggering part is compressed, the second channel is moved to a position aligned with the first channel and communicates with the first channel. Each side of the rotating platform is provided with multiple second mounting cavities, and each first top block is disposed in a second mounting cavity, and the second mounting cavity communicates with the pneumatic passage. Each of the aforementioned trigger push blocks is detachably disposed below the upper transverse member; the first end of each of the aforementioned pneumatic passages is connected to one of the first mounting cavities, and the other end of each of the aforementioned pneumatic passages is connected to any number of the second mounting cavities on each side of the rotating body; Each side of the rotating body is also provided with a mold mounting groove, which is used to fix the rear mold of the injection mold; the rear mold is provided with a through hole, the position of which corresponds to the position of the first ejector block; when the first ejector block is ejected, it can eject the injection molded part in the rear mold; the injection mold also includes a front mold, and when the front mold and the rear mold are closed, the first ejector block in the ejected state can be pushed back.
2. The rotary table according to claim 1, characterized in that, Each of the first mounting cavities is provided with an elastic element, and the triggering part is mounted on the elastic element; when the triggering part is not squeezed, the elastic element can push the triggering part out of the first mounting cavity.
3. The rotary table according to claim 1, characterized in that, The outer edges of the triggering component, the first top block, the first mounting cavity, and the second mounting cavity are all provided with sealing mounting grooves; a sealing ring is fitted on the sealing mounting groove.
4. The rotary table according to claim 1, characterized in that, The rotary table also includes multiple sets of hydraulic cylinder pushing devices. Each set of hydraulic cylinder pushing devices includes a hydraulic cylinder top block and a hydraulic cylinder driving device. The hydraulic cylinder top block and the hydraulic cylinder pushing device are connected by an oil circuit. The hydraulic cylinder top block is embedded in each side of the rotating body, and the hydraulic cylinder driving device is used to drive the hydraulic cylinder top block to be pushed out of the rotating body.
5. The rotary table according to claim 1, characterized in that, The upper transverse member is provided with a sleeve mounting hole, the upper transverse member is sleeved on the mounting rod of the injection mold through the sleeve mounting hole, and the upper transverse member can slide on the mounting rod; The triggering component is detachably mounted on the upper transverse member.
6. An injection mold with a rotary table, characterized in that, The injection mold with a rotary table includes the rotary table as described in any one of claims 1-5.
7. An injection molding system, characterized in that, The injection molding system includes the injection mold with a rotary table as described in claim 6.
Citation Information
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