High-speed rotating demolding mechanism

Abstract

The utility model discloses a high-speed rotating demolding mechanism which comprises a mold body, a product, a core rod, a driving device and a transmission assembly, the product is formed in a cavity of the mold body, the product is provided with a threaded hole, one end of the core rod is used for forming the threaded hole, the core rod is connected with the mold body through threads, and the driving device is used for driving the mold body to rotate. The driving device is installed on the mold body, the transmission assembly is installed on the mold body, the input end of the transmission assembly is connected with the output end of the driving device, and the output end of the transmission assembly is matched with the mold core rod through a spline. The demolding device has the beneficial effects that during demolding, the driving device can act on the mold core rod through the transmission assembly to perform height rotation, then rapid demolding of the mold core rod and a product threaded hole is achieved, the requirement for manual operation is reduced, the labor intensity of an operator is effectively reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a high-speed rotating demoulding mechanism. Background Art

[0002] An injection mold is a tool used to produce plastic products; it also gives them a complete structure and precise dimensions. Injection molding is a processing method used for mass production of complex parts. Specifically, the process involves injecting heated, molten plastic into a mold cavity under high pressure using an injection molding machine. After cooling and solidification, the resulting molded product is formed.

[0003] like Figure 1 The figure shows an existing product with a threaded hole. Therefore, the core block corresponding to the threaded hole must be rotated to release the mold. Existing methods often rely on manual demolding. While manual operation is acceptable for products with a small number of thread turns, it is inefficient and prone to operator fatigue for products with a large number of thread turns. Therefore, a high-speed rotary demolding mechanism is proposed to address this technical problem. Utility Model Content

[0004] One of the purposes of this application is to provide a high-speed rotary demoulding mechanism.

[0005] To achieve the above objectives, the technical solution adopted in this application is: a high-speed rotating demolding mechanism, comprising a mold body, a product, a core rod, a driving device and a transmission assembly, wherein the product is formed in the mold cavity of the mold body, the product has a threaded hole, one end of the core rod is used to form the threaded hole, the core rod is connected to the mold body by a thread, the driving device is installed on the mold body, the transmission assembly is installed on the mold body, the input end of the transmission assembly is connected to the output end of the driving device, and the output end of the transmission assembly is splined with the core rod; during demolding, the driving device is suitable for driving the core rod to rotate spirally through the transmission assembly until it disengages from the threaded hole.

[0006] Preferably, the transmission assembly includes a worm wheel and a worm, the worm wheel is rotatably mounted on the mold body and is spline-connected to the core rod, and the worm is mounted on the output end of the driving device and meshes with the worm wheel.

[0007] Preferably, the product has multiple worm wheels which are arranged in a straight line in the mold body, and the corresponding multiple worm wheels are meshed with the same worm.

[0008] Preferably, the core rod has a cooling cavity inside, and a cooling joint is rotatably connected to the other end of the core rod, and the cooling joint is externally provided with a water inlet and a water outlet.

[0009] Preferably, a thin tube is mounted at the end of the cooling joint, the thin tube extends into the cooling cavity and is close to one end of the core rod, a cooling channel is formed between the thin tube and the cooling cavity, the thin tube is in communication with the water inlet, and the cooling channel is in communication with the water outlet.

[0010] Preferably, the side of the mold body is detachably provided with a threaded sleeve through a limiting structure, and the threaded sleeve is in threaded cooperation with the core rod.

[0011] Preferably, the limiting structure comprises a first limiting assembly and a second limiting assembly, the first limiting assembly is adapted to limit the radial direction and the axial direction of the threaded sleeve, and the second limiting assembly is adapted to limit the circumferential direction of the threaded sleeve.

[0012] Preferably, the first limiting assembly is a limiting ring one, and the limiting ring one is sleeved and mounted outside the threaded sleeve and is in bolt cooperation with the mold body.

[0013] Preferably, the second limiting assembly comprises a limiting ring two and a limiting block, the limiting ring two is sleeved and mounted outside the threaded sleeve and is in bolt cooperation with the threaded sleeve, the limiting ring two is externally provided with a plurality of ring teeth, and the limiting block is mounted to the mold body and is externally provided with a plurality of tooth bodies matched with the ring teeth.

[0014] Preferably, the mold body is provided with a guide sleeve, the guide sleeve is sleeved outside the core rod, and the transmission assembly is located between the guide sleeve and the threaded sleeve.

[0015] Compared with the prior art, the application has the beneficial effects that:

[0016] The driving device acts on the core rod to rotate the height of the core rod through the transmission assembly during demolding, thereby realizing rapid demolding of the core rod and the threaded hole of the product, reducing the need for manual operation, effectively reducing the labor intensity of the operator, and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the existing product structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 3It is a local top view structure schematic diagram of the utility model.

[0020] Figure 4 It is a B-B section view schematic diagram of the utility model.

[0021] Figure 5 It is a local three-dimensional structure schematic diagram of the utility model.

[0022] Figure 6 It is a core rod cooling system schematic diagram of the utility model.

[0023] Figure 7 It is a second limiting assembly schematic diagram of the utility model.

[0024] Figure 8 It is an A place enlarged structure schematic diagram of the utility model.

[0025] In the drawing: 1, product;101, threaded hole;2, mold body;3, driving device;4, core rod;401, cooling cavity;5, transmission assembly;501, worm wheel;502, worm;6, threaded sleeve;7, guide sleeve;8, cooling joint;9, thin tube;10, water inlet;11, water outlet;12, limiting structure;1201, first limiting assembly;1202, second limiting assembly;12021, limiting ring two;12022, limiting block. DETAILED DESCRIPTION

[0026] In the following, the application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0027] In the description of the application, it should be noted that for orientation words, such as terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the application are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence.

[0029] One of the preferred embodiments of the application is, for example, Figures 1 to 8As shown in the drawings, a high-speed rotating demolding mechanism includes a mold body 2, a product 1, a core rod 4, a driving device 3 and a transmission assembly 5, the product 1 is formed in a cavity of the mold body 2, the product 1 has a threaded hole 101, one end (i.e. the left end) of the core rod 4 is used for forming the threaded hole 101, the core rod 4 is connected with the mold body 2 through threads, the driving device 3 is installed on the mold body 2, the transmission assembly 5 is installed on the mold body 2, an input end of the transmission assembly 5 is connected with an output end of the driving device 3, and an output end of the transmission assembly 5 is connected with the core rod 4 through spline fitting.

[0030] It can be understood that when the threaded hole 101 is demolded, the driving device 3 is started, and the driving device 3 acts on the core rod 4 to rotate through the transmission assembly 5, and since the core rod 4 and the mold body 2 are threadedly connected, the rotating core rod 4 will also move axially (i.e. spiral rotation) at the same time. Since the transmission assembly 5 and the core rod 4 are spline-fitted, the transmission assembly 5 will not interfere with the axially moving core rod 4.

[0031] Therefore, through the cooperation of the driving device 3 and the transmission assembly 5, the core rod 4 can be made to rotate at high speed and spiral until it is separated from the threaded hole 101, thereby realizing rapid demolding. The design of the mechanism simplifies the operation process, reduces the need for manual operation, effectively reduces the labor intensity of the operator, and improves the production efficiency.

[0032] The specific structure of the transmission assembly 5 is not limited in the application, and a specific embodiment is provided below for reference:

[0033] As shown in the drawings, Figure 4 and Figure 5 The transmission assembly 5 includes a worm gear 501 and a worm 502, the worm gear 501 is rotatably installed on the mold body 2 and is connected with the core rod 4 through spline fitting, and the worm 502 is installed on the output end of the driving device 3 and is engaged with the worm gear 501.

[0034] For example, the driving device 3 adopts a motor, the motor drives the worm 502 to rotate, the worm 502 acts on the worm gear 501, and the worm gear 501 can drive the core rod 4 to rotate through the spline fitting. Different directions of the motor can realize the core pulling and resetting processes of the core rod 4.

[0035] Of course, the transmission assembly 5 can also adopt the form of a hydraulic cylinder, a gear and a rack, i.e. the hydraulic cylinder is installed on the mold body 2 and the piston rod is connected with the rack at one end, the gear is installed on the core rod 4 through spline fitting, and the gear and the rack are engaged. It can be understood that the hydraulic cylinder drives the rack to move, the rack acts on the gear, and the gear drives the core rod 4 to rotate spirally, thereby realizing the core pulling or resetting process of the core rod 4.

[0036] It should be noted that the hydraulic cylinder, gear and rack structure can be used for the case of fewer threads in the threaded hole 101; however, for the case of more threads, using a common oil cylinder to drive the rack to core pulling will result in a large oil cylinder stroke or transmission ratio, which will increase the molding cycle or occupy a large mold installation space, and the product 1 quality is not good. The structure of the above worm gear 501 and worm 502 cooperation, the mold design is more compact, the mold movement is stable; the rotation speed of the motor is high, so that the thread removal speed is fast, the product 1 whole forming cycle is short, the applicability is better.

[0037] Further, as shown in Figure 2 and Figure 3 , the product 1 in the mold body 2 can be provided with a plurality of, and the plurality of products 1 are arranged in a straight line, and the plurality of worm gears 501 are engaged with the same worm 502; that is, under the cooperation of one worm 502 and a plurality of worm gears 501, under the action of only one driving device 3, the synchronous demolding operation of a plurality of products 1 can be realized, thereby greatly improving the production efficiency and equipment utilization.

[0038] In one embodiment of the present application, as shown in Figure 6 , in order to realize the cooling effect of the core rod 4, a cooling cavity 401 can be arranged in the inside of the core rod 4, and the other end of the core rod 4 is rotatably connected with a cooling connector 8, and the outside of the cooling connector 8 is provided with a water inlet 10 and a water outlet 11.

[0039] It can be understood that the water inlet 10 can be connected with a water pump, and then the cooling water (liquid) is pumped into the water inlet 10 through the water pump, and then the cooled liquid is discharged from the water outlet 11, which can realize the cooling effect of the core rod 4.

[0040] Based on the above implementation, there can be a problem that if the water inlet 10 and the water outlet 11 are very close, the liquid in the cooling cavity 401 will not play a flow-through role, and the cooling effect will be very poor. Of course, the water outlet 11 can be arranged at the position close to the product 1 of the core rod 4, as shown in Figure 6 , so that the cooling water enters from the right end of the core rod 4 and then flows out from the left end, thereby improving the cooling effect; however, since the water outlet 11 is located deeper in the inside of the mold body 2 at this time, the pipeline connected with the water outlet 11 needs to be inserted deeper into the inside of the mold body 2, thereby making the structure complex, and the water outlet 11 fails. It is not convenient to maintain.

[0041] Therefore, in order to solve the above technical problems, as shown in Figure 6As shown, the end of the cooling joint 8 is provided with a thin tube 9, which extends into the cooling cavity 401 and is close to one end of the core rod 4 (i.e. the left end or the forming end of the threaded hole 101), and a cooling channel is formed between the thin tube 9 and the cooling cavity 401, the thin tube 9 is communicated with the water inlet 10, and the cooling channel is communicated with the water outlet 11.

[0042] As can be understood, as shown, at this time, the cooling water enters from the water inlet 10, then enters the left end of the cooling channel (i.e. close to the left end of the core rod 4) under the conveying action of the thin tube 9, and then is discharged from the water outlet 11 under the action of the cooling channel, so that the cooling effect of the core rod 4 can be achieved, and the water inlet 10 and the water outlet 11 can be arranged on the cooling joint 8, thereby facilitating connection and subsequent maintenance. Figure 6

[0043] As shown, the installation mode of the core rod 4 is as follows: a threaded sleeve 6 is detachably installed on the side of the mold body 2 through a limiting structure 12, and the threaded sleeve 6 is threadedly connected with the core rod 4. Therefore, when the threaded sleeve 6 is damaged, it can be easily disassembled and assembled through the limiting structure 12, thereby improving the replacement rate. Figure 8 Specifically, the limiting structure 12 includes a first limiting component 1201 and a second limiting component 1202, the first limiting component 1201 can limit the radial and axial directions of the threaded sleeve 6, and the second limiting component 1202 can limit the circumferential direction of the threaded sleeve 6.

[0044] As can be understood, the threaded sleeve 6 needs to be fixedly installed on the mold body 2 during use, and the installation stability of the threaded sleeve 6 is crucial, because the threaded sleeve 6 plays a limiting and guiding role for the core rod 4, and if the position of the threaded sleeve 6 deviates, the quality of the threaded hole 101 will be affected, thereby affecting the quality of the entire product 1. In the prior art, the threaded sleeve 6 can be directly fixedly installed on the mold body 2 by bolts to limit the positions of the threaded sleeve 6 in all directions, but since the threaded sleeve 6 is subjected to various forces, the stability of the threaded sleeve 6 is not good enough by only using the bolts. As shown,

[0045] As can be understood, as shown, due to the convenience of processing the threaded sleeve 6, the finished threaded sleeve 6 is in a cylindrical structure as a whole, and it is not convenient to provide mounting holes on the threaded sleeve 6, and the holes will also affect the overall strength of the threaded sleeve 6. Figure 6 Therefore, as shown,

[0046] Figure 8 ​​As shown, the first limiting component 1201 is a limiting ring one, which is sleeved and installed outside the threaded sleeve 6 and is bolted with the mold body 2. It can be understood that the limiting ring one is wrapped on the threaded sleeve 6, so that the limiting ring one can limit the radial and axial directions of the threaded sleeve 6. The second limiting component 1202 includes a limiting ring two 12021 and a limiting block 12022. The limiting ring two 12021 is sleeved and installed outside the threaded sleeve 6 and is bolted with the threaded sleeve 6. For example, the front end of the threaded sleeve 6 is in a rectangular structure, and the limiting ring two 12021 is adapted to be sleeved and wrapped on the front end of the threaded sleeve 6 and is bolted to be fastened, so that the rotation of the limiting ring two 12021 can limit the circumferential direction of the threaded sleeve 6. The limiting ring two 12021 has a plurality of ring teeth outside, and the limiting block 12022 is installed on the mold body 2 and has a plurality of tooth bodies outside which are matched with the ring teeth. That is, the limiting and clamping effect of the ring teeth and the tooth bodies can realize the limiting of the circumferential direction of the threaded sleeve 6. In this way, the limiting of the threaded sleeve 6 can be ensured, and the convenience of the later disassembly of the threaded sleeve 6 is provided.

[0047] In this embodiment, as shown in the drawings, Figure 5 The guide sleeve 7 is arranged in the mold body 2 and is movably sleeved outside the core rod 4. The transmission assembly 5 is located between the guide sleeve 7 and the threaded sleeve 6. Specifically, the guide sleeve 7 is close to the left end position of the core rod 4, the threaded sleeve 6 is close to the right end position of the core rod 4, and the worm wheel 501 is located at the middle position of the core rod 4, thereby stably guiding and limiting the core rod 4 to prevent it from deviating during work, so as to ensure the machining precision of the product 1.

[0048] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A high speed rotary demolding mechanism characterized by, The utility model relates to a mould body, a product, a core rod, a driving device and a transmission assembly. The product is formed in a cavity of the mould body and has a threaded hole. One end of the core rod is used to form the threaded hole, and the core rod is connected with the mould body through threads. The driving device is installed on the mould body. The input end of the transmission assembly is connected with the output end of the driving device, and the output end of the transmission assembly is connected with the core rod through spline. When the product is demoulded, the driving device is suitable for driving the core rod to rotate spirally and separate from the threaded hole through the transmission assembly.

2. The high speed spin release mechanism of claim 1, wherein: The transmission assembly comprises a worm wheel and a worm.

3. The high speed rotary demolding mechanism of claim 2, wherein: The product has a plurality of threaded holes arranged in a straight line in the mould body.

4. The high speed rotary demolding mechanism of claim 3, wherein: The core rod has a cooling cavity inside.

5. The high speed rotary demolding mechanism of claim 4, wherein: The other end of the core rod is rotatably connected with a cooling connector.

6. The high speed rotary demolding mechanism according to any one of claims 1 to 5, characterized in that: The end of the cooling connector is provided with a thin tube.

7. The high speed rotary demolding mechanism of claim 6, wherein: The thin tube extends into the cooling cavity and is close to one end of the core rod.

8. The high speed rotary demolding mechanism of claim 7, wherein: The thin tube and the cooling cavity form a cooling channel.

9. The high speed rotary demolding mechanism of claim 8, wherein: The side of the mould body is detachably provided with a threaded sleeve through a limiting structure.

10. The high speed rotary demolding mechanism of claim 6, wherein: The limiting structure comprises a first limiting assembly and a second limiting assembly. The first limiting assembly is suitable for limiting the radial and axial directions of the threaded sleeve. The second limiting assembly is suitable for limiting the circumferential direction of the threaded sleeve. The first limiting assembly is a limiting ring one. The limiting ring one is sleeved on the outside of the threaded sleeve and is connected with the mould body through bolts. The second limiting assembly comprises a limiting ring two and a limiting block. The limiting ring two is sleeved on the outside of the threaded sleeve and is connected with the threaded sleeve through bolts. The outside of the limiting ring two has a plurality of ring teeth. The limiting block is installed on the mould body and has a plurality of tooth bodies on the outside. The mould body is provided with a guide sleeve. The guide sleeve is sleeved on the outside of the core rod. The transmission assembly is located between the guide sleeve and the threaded sleeve.

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