Floating type rotary demolding mechanism

Abstract

The floating type rotary demolding mechanism comprises a fixed mold, a movable mold, a first forming assembly, a driving device and a transmission mechanism, the fixed mold, the movable mold and the first forming assembly are matched with one another to form a cavity used for forming a plastic part product, the first forming assembly is used for forming a spiral channel of the plastic part product, the driving device is installed on the movable mold, and the transmission mechanism is installed on the movable mold. The transmission mechanism is installed on the movable mold and matched with the movable mold, the input end of the transmission mechanism is connected with the output end of the driving device, and the output end of the transmission mechanism is connected with the first forming assembly. The mold has the beneficial effects that during demolding, only one driving device is needed to be matched with a transmission mechanism, the two actions of moving and rotary demolding of the first forming assembly can be achieved, and the demolding efficiency and precision are improved; meanwhile, the design can also reduce the complexity and maintenance cost of the equipment, so that the whole demolding process is simpler, more convenient and more efficient.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a floating rotary demoulding mechanism. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] like Figure 1 As shown, an existing injection molded product has two spiral channels at the top, so the corresponding core block needs to perform two synchronous processes during demolding, that is, while the core block is away from the molded product, the core block itself also needs to rotate. Therefore, two driving sources are required during design, and the mold itself has a compact structure, which is inconvenient to install and maintain. Therefore, a floating rotary demolding mechanism is proposed to solve the above technical problems. Utility Model Content

[0004] One of the purposes of the present application is to provide a floating rotary demoulding mechanism.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a floating rotary demolding mechanism, comprising a fixed mold, a movable mold, a first molding component, a driving device and a transmission mechanism, wherein the fixed mold, the movable mold and the first molding component cooperate with each other to form a cavity for molding a plastic product, wherein the first molding component is used to mold a spiral channel of a plastic product, the driving device is installed on the movable mold, the transmission mechanism is installed on the movable mold and cooperates with the movable mold, the input end of the transmission mechanism is connected to the output end of the driving device, and the output end of the transmission mechanism is connected to the first molding component; when demolding is performed, the movable mold is suitable for driving the first molding component away from the fixed mold, and at this time the driving device is suitable for driving the first molding component to rotate spirally and away from the spiral channel of the plastic product through the transmission mechanism until the first molding component is separated from the formed spiral channel.

[0006] Preferably, the transmission mechanism includes a transmission rod, a floating plate and a guide structure, the floating plate is installed at the output end of the driving device, the first end of the transmission rod is rotationally matched with the floating plate, the second end of the transmission rod is connected to the first molding component, and the transmission rod is matched with the movable mold through the guide structure; when demolding, the driving device is suitable for driving the transmission rod to move in the direction of the plastic product through the floating plate, and then the transmission rod drives the first molding component to disengage from the formed spiral channel under the action of the guide structure.

[0007] Preferably, the guide structure includes a guide block and a spiral guide groove, the guide groove is arranged outside the transmission rod, the guide block is installed in the movable mold, and the guide block and the guide groove are slidably matched.

[0008] Preferably, the transmission rod is elastically rotatably mounted on the floating plate, and the guide structure includes an end face cam 1 and an end face cam 2, wherein the end face cam 1 is mounted on the transmission rod, and the end face cam 2 is mounted in the movable mold, and the end face cam 1 and the end face cam 2 cooperate with each other.

[0009] Preferably, the floating rotary demolding mechanism also includes a second molding component, which is used to mold the side of the plastic product. The second molding component is slidably mounted on the movable mold and cooperates with the fixed mold through a guide component. When demolding, the movable mold is suitable for driving the second molding component to move away from the side of the plastic product through the guide component.

[0010] Preferably, the guide assembly includes an inclined guide column and an inclined guide groove, the inclined guide column is installed in the fixed mold, and the inclined guide groove is arranged on the second molding assembly; when demolding, the second molding assembly is suitable for moving synchronously with the movable mold, and then the inclined sliding cooperation between the inclined guide column and the inclined guide groove is used to drive the second molding assembly to slide along the movable mold.

[0011] Preferably, the first molding assembly includes a first core block and a pair of spiral blocks, the spiral blocks are used to mold the spiral channels of the plastic product, and the spiral blocks are connected to the transmission rod via the first core block.

[0012] Preferably, the second molding assembly includes at least two second core blocks, which are respectively located on both sides of the cavity for molding both sides of the plastic product; when opening the mold, the two second core blocks are horizontally moved away from both sides of the plastic product through the guide assembly.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] The utility model is provided with a driving device and a transmission mechanism. When demolding, the driving device can drive the first molding component to spirally rotate and demold away from the spiral channel B of the plastic product A through the transmission mechanism. It can be seen that when demolding, only one driving device and the transmission mechanism are needed to realize the two actions of moving the first molding component and rotating the demolding, thereby improving the demolding efficiency and accuracy; at the same time, this design can also reduce the complexity and maintenance cost of the equipment, making the entire demolding process simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the existing product structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the cavity structure of the utility model.

[0018] Figure 4 It is a schematic diagram of the enlarged structure of point C of the utility model.

[0019] Figure 5 It is a cross-sectional structural schematic diagram of the utility model.

[0020] Figure 6 It is a schematic diagram of the structure of the first and second core components of the present utility model.

[0021] Figure 7 It is a schematic diagram of the first embodiment of the guide structure of the utility model.

[0022] Figure 8 It is a schematic diagram of a second embodiment of the guide structure of the present utility model.

[0023] In the figure: 1, fixed mold; 2, movable mold; 3, first molding assembly; 301, spiral block; 302, first core block; 4, second molding assembly; 401, second core block; 5, guide assembly; 501, inclined guide column; 502, inclined guide groove; 6, driving device; 7, transmission mechanism; 701, transmission rod; 702, floating plate; 703, guide structure; 7031, guide block; 7032, guide groove; 7033, end face cam one; 7034, end face cam two. DETAILED DESCRIPTION

[0024] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0027] One of the preferred embodiments of the present application is as follows: Figures 1 to 8 As shown, a floating rotary demolding mechanism includes a fixed mold 1, a movable mold 2, a first molding component 3, a driving device 6 and a transmission mechanism 7. The fixed mold 1, the movable mold 2 and the first molding component 3 cooperate with each other to form a cavity for molding a plastic product A, wherein the first molding component 3 is used to mold a spiral channel B of the plastic product, the driving device 6 is installed on the movable mold 2, the transmission mechanism 7 is installed on the movable mold 2 and cooperates with the movable mold 2, the input end of the transmission mechanism 7 is connected to the output end of the driving device 6, and the output end of the transmission mechanism 7 is connected to the first molding component 3.

[0028] It can be understood that when demolding, the movable mold 2 can drive the first molding component 3 away from the fixed mold 1. At the same time, the driving device 6 can drive the first molding component 3 to rotate spirally through the transmission mechanism 7. Of course, while rotating spirally, it will also move away from the spiral channel B of the plastic product A until the first molding component 3 is separated from the molded spiral channel B, thereby completing the demolding of the spiral channel B.

[0029] It can be seen that during demoulding, only one driving device 6 (driving source) is needed to cooperate with the transmission mechanism 7 to realize the two actions of moving and rotating the first molding component 3 for demoulding, thereby realizing the demoulding of the spiral channel B. This can reduce the setting of the driving source, and through the mechanical transmission mechanism 7, the coordination between the two actions is smoother and more stable, thereby improving the demoulding efficiency and accuracy. At the same time, this design can also reduce the complexity and maintenance cost of the equipment, making the entire demoulding process simpler and more efficient.

[0030] One of the embodiments of the present application is as follows: Figure 5As shown, the transmission mechanism 7 includes a transmission rod 701, a floating plate 702 and a guide structure 703. The floating plate 702 is installed at the output end of the driving device 6. The first end of the transmission rod 701 is rotationally matched with the floating plate 702. The second end of the transmission rod 701 is connected to the first molding component 3. The transmission rod 701 is matched with the movable mold 2 through the guide structure 703.

[0031] It is understandable that when demolding is performed, the driving device 6 can drive the transmission rod 701 to move in the direction of the plastic product A through the floating plate 702, thereby enabling the first molding component 3 to move in the direction of the plastic product A; it should be noted that at this time, the first molding component 3 and the transmission mechanism 7 are driven by the movable mold 2, and their entirety still moves in the direction away from the plastic product A, otherwise it will interfere with the demolding of the first molding component 3.

[0032] Therefore, it should be known that while the transmission rod 701 moves axially toward the plastic product A, the transmission rod 701 can also rotate axially with the cooperation of the guide structure 703, thereby driving the movement and rotation of the first molding component 3 to achieve demolding of the spiral channel B.

[0033] As a further description of the above embodiment: Figure 7 and Figure 8 As shown, the guide structure 703 has various structural forms, including but not limited to the following two:

[0034] Structure 1: Figure 7 As shown, the guide structure 703 includes a guide block 7031 and a spiral guide groove 7032 . The guide groove 7032 is arranged outside the transmission rod 701 . The guide block 7031 is installed in the movable mold 2 . The guide block 7031 and the guide groove 7032 are slidably matched.

[0035] It is understandable that when the transmission rod 701 moves axially, the spiral guide groove 7032 will cooperate with the guide block 7031, thereby causing the transmission rod 701 to rotate axially at the same time.

[0036] Structure 2: Figure 8 As shown, the transmission rod 701 is elastically rotatably installed on the floating plate 702 (through a torsion spring), and the guide structure 703 includes an end cam 1 7033 and an end cam 2 7034. The end cam 1 7033 is installed on the transmission rod 701, and the end cam 2 7034 is installed in the movable mold 2. The transmission rod 701 passes through the end cam 2 7034. The end cam 1 7033 and the end cam 2 7034 cooperate with each other, that is, the protruding parts of the two end cams are arranged in a relative state.

[0037] It can be understood that when the transmission rod 701 does not move under the action of the driving device 6, and the movable mold 2 and the fixed mold 1 are in mold closing, the first molding component 3 is in the accurate position when the mold is closed under the elastic action of the torsion spring; and when demolding is performed, that is, when the transmission rod 701 moves axially, the end face cam 1 7033 will move toward the end face cam 2 7034 in the movable mold 2. When the two are against each other, the wedge-shaped extrusion cooperation between the end face cam 1 7033 and the end face cam 2 7034 can make the end face cam 1 7033 rotate, thereby driving the transmission rod 701 to rotate axially.

[0038] It should be noted that both structures can meet actual needs, and technicians in this field can choose according to actual conditions; of course, the specific structure and working principle of the drive device 6 are well-known technologies to technicians in this field, so they will not be elaborated in detail here; common drive devices 6 include hydraulic cylinders, pneumatic cylinders and linear motors, etc., and technicians in this field can also choose according to actual needs.

[0039] In this embodiment, Figure 4 and Figure 6 As shown, the floating rotary demoulding mechanism also includes a second molding component 4, which is used to mold the side of the plastic product A. The second molding component 4 is slidably installed on the movable mold 2 and cooperates with the fixed mold 1 through the guide component 5.

[0040] It should be known that, during demoulding, the movable mold 2 can drive the second molding assembly 4 to move to the side away from the plastic product A through the guide assembly 5, thereby achieving demoulding of the side of the plastic product A.

[0041] Specifically, the guide assembly 5 includes an inclined guide column 501 and an inclined guide groove 502, wherein the inclined guide column 501 is installed in the fixed mold 1, and the inclined guide groove 502 is provided in the second molding assembly 4. When demolding, the second molding assembly 4 will move synchronously with the movable mold 2, and then the inclined sliding cooperation of the inclined guide column 501 and the inclined guide groove 502 will drive the second molding assembly 4 to slide along the movable mold 2, thereby realizing demolding of the second molding assembly 4 and the side of the plastic product A.

[0042] like Figure 6 As shown, the second molding component 4 includes at least two second core blocks 401, which are respectively located on both sides of the cavity to be used for molding both sides of the plastic product A; when opening the mold, the two second core blocks 401 are horizontally moved away from the two sides of the plastic product A through the guide component 5, thereby realizing demolding.

[0043] In this embodiment, Figure 7As shown, the first molding assembly 3 includes a first core block 302 and a pair of spiral blocks 301 , wherein the spiral block 301 is used to mold two spiral channels B of the plastic product A, and the spiral block 301 is connected to the transmission rod 701 through the first core block 302 .

[0044] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A floating rotary demoulding mechanism, characterized in that: include: A fixed mold, a movable mold, a first molding component, a driving device and a transmission mechanism, wherein the fixed mold, the movable mold and the first molding component cooperate with each other to form a cavity for molding a plastic product, wherein the first molding component is used to mold a spiral channel of a plastic product, the driving device is installed on the movable mold, the transmission mechanism is installed on the movable mold and cooperates with the movable mold, the input end of the transmission mechanism is connected to the output end of the driving device, and the output end of the transmission mechanism is connected to the first molding component; When demolding is performed, the movable mold is suitable for driving the first molding component away from the fixed mold. At this time, the driving device is suitable for driving the first molding component to rotate spirally and away from the spiral channel of the plastic product through the transmission mechanism until the first molding component is separated from the spiral channel after molding.

2. The floating rotary demoulding mechanism according to claim 1, characterized in that: The transmission mechanism includes a transmission rod, a floating plate and a guide structure, wherein the floating plate is installed at the output end of the driving device, the first end of the transmission rod is rotationally matched with the floating plate, the second end of the transmission rod is connected to the first molding assembly, and the transmission rod is matched with the movable mold through the guide structure; When demoulding is performed, the driving device is suitable for driving the transmission rod to move toward the direction of the plastic product through the floating plate, and then the transmission rod drives the first molding component to be separated from the molded spiral channel under the action of the guide structure.

3. The floating rotary demoulding mechanism according to claim 2, characterized in that: The guide structure includes a guide block and a spiral guide groove, wherein the guide groove is arranged outside the transmission rod, and the guide block is installed in the movable mold, and the guide block and the guide groove are slidably matched.

4. The floating rotary demoulding mechanism according to claim 2, characterized in that: The transmission rod is elastically rotatably mounted on the floating plate, and the guide structure includes an end cam 1 and an end cam 2. The end cam 1 is mounted on the transmission rod, and the end cam 2 is mounted in the movable mold. The end cam 1 and the end cam 2 cooperate with each other.

5. The floating rotary demoulding mechanism according to any one of claims 1 to 4, characterized in that: The floating rotary demolding mechanism also includes a second molding component, which is used to mold the side of the plastic product. The second molding component is slidably installed on the movable mold and cooperates with the fixed mold through a guide component. When demolding, the movable mold is suitable for driving the second molding component to move away from the side of the plastic product through the guide component.

6. The floating rotary demoulding mechanism according to claim 5, characterized in that: The guide assembly includes an inclined guide column and an inclined guide groove, wherein the inclined guide column is installed in the fixed mold, and the inclined guide groove is arranged on the second molding assembly; when demolding, the second molding assembly is suitable for synchronously moving with the movable mold, and then the inclined sliding cooperation between the inclined guide column and the inclined guide groove is used to drive the second molding assembly to slide along the movable mold.

7. The floating rotary demoulding mechanism according to claim 2, characterized in that: The first molding assembly includes a first core block and a pair of spiral blocks. The spiral blocks are used to mold spiral channels of plastic products. The spiral blocks are connected to the transmission rod through the first core block.

8. The floating rotary demoulding mechanism according to claim 6, characterized in that: The second molding component includes at least two second core blocks, which are respectively located on both sides of the cavity for molding both sides of the plastic product. When the mold is opened, the two second core blocks are horizontally moved away from both sides of the plastic product through the guide component.

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