Rotatable mold system capable of eliminating parting and taking of products

Abstract

The invention relates to the technical field of dies, in particular to a rotatable die system capable of eliminating parting and taking of products, which comprises a lower die body, an upper die body and a lower die body, the butt joint end of the lower die body is provided with a concave die core cavity, the die core cavity is internally provided with a die core, and the die core is internally provided with a cavity; and the jacking assembly is arranged in the lower die body, the jacking assembly comprises a driving air cylinder and a jacking piece, and when the driving air cylinder is started, the output end of the driving air cylinder can drive the jacking piece to jack up the workpiece in the cavity. A traditional structure that a model is divided into two mold chambers is changed, and the cavity is completely embedded into the butt joint piece, so that a parting line formed on a product during demolding of the upper mold body and the lower mold body can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of molds, in particular to a rotatable mold system for eliminating product parting and taking out. Background Art

[0002] In the manufacturing industry, especially in the production of plastic products and precision parts, mold design and manufacturing technology is a key link. With the diversification of market demand and the advancement of technology, the requirements for molds are getting higher and higher. Not only are molds required to complete molding work efficiently and accurately, but also issues such as product demoulding and removal need to be considered.

[0003] Traditional mold cores are demolded front and back, which forms a parting line on the surface of the spatial product structure. The product appearance has obvious defects and requires an additional polishing step for secondary processing. Summary of the invention

[0004] In order to solve the technical problem of forming a parting line on the surface of a spatial product structure after demoulding, the present application provides a pickling device for removing the α layer of titanium alloy.

[0005] The present invention provides the following technical solution: a rotatable mold system for eliminating product parting and taking out, comprising:

[0006] A lower mold body, wherein the butt end of the lower mold body has a concave mold core cavity, a mold core is arranged in the mold core cavity, and a mold core has a mold cavity;

[0007] The lifting component is installed in the lower mold body. The lifting component includes a driving cylinder and a lifting member. When the driving cylinder is started, the output end of the driving cylinder can drive the lifting member to lift the workpiece in the cavity.

[0008] As a further technical solution of the present invention, the lifting part includes an outer sleeve, a push rod and an ejector pin which are sequentially arranged from the outside to the inside, the outer sleeve is connected to the docking part, the push rod is connected to the mold core, the ejector pin is connected to the mold cavity, and the lower edges of the outer sleeve, the push rod and the ejector pin are gradually lowered.

[0009] As a further technical solution of the present invention, a lower hammer is connected to the bottom of the ejector pin, and an upper hammer is connected to the top of the ejector pin.

[0010] As a further technical solution of the present invention, the jacking components are provided in two groups, which are arranged symmetrically around the center of the mold core on the horizontal projection plane.

[0011] As a further technical solution of the present invention, the lower mold body includes a bottom plate, a middle piece and a docking piece connected in sequence from the outside to the inside, the mold core cavity is opened on the docking piece, a turntable is rotatably arranged on the bottom plate, and two driving cylinders are installed on the turntable.

[0012] As a further technical solution of the present invention, there is a gap between the driving cylinder and the lifting member, and two hoops are arranged in the middle member at intervals. The two hoops are surrounded by the lifting member to form a cage, and the driving cylinder extends into the cage and docks with the lifting member to achieve lifting.

[0013] As a further technical solution of the present invention, a limiting piece corresponding to the lifting piece is arranged in the intermediate piece, and the limiting piece has a through hole, and the ejector pin passes through the through hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) In the present application, the traditional structure of dividing the model into two mold chambers is changed, and the cavity is completely embedded in the docking piece, so as to avoid the parting line formed on the product when the upper mold body and the lower mold body are demolded.

[0016] (2) In the present application, a lifting component is provided to eject the mold core and the workpiece together, and a three-layer lifting component design is adopted, which can not only pre-embed and eject the molded workpiece in one ejection, but also can perform a second lift to eject the mold core together, so that the mold core can be cleaned while taking out the workpiece, thereby improving the demoulding efficiency;

[0017] (3) In the present application, a rotating turntable is used to drive the mold core and the workpiece to rotate to cooperate with an external robot to pick up the parts, and the driving cylinder and the lifting part are set as separate structures, forcing the driving cylinder to be lifted and extended into the cage before it can drive the mold core and the workpiece to rotate. In other words, the workpiece and the mold core must be lifted before they can rotate, so as to avoid the workpiece rotating before being demolded and interfering with the lower mold body and deforming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The overall structural diagram of a rotatable mold system for eliminating product parting and taking out is shown;

[0020] Figure 2 The overall structural diagram of the lower mold body is shown;

[0021] Figure 3 A schematic diagram of the structure of the jacking assembly is shown;

[0022] Figure 4 A schematic structural diagram of the lifting member is shown.

[0023] Description of the drawings: 100, upper mold body; 200, lower mold body; 210, bottom plate; 211, turntable; 220, middle piece; 221, hoop; 222, limit piece; 230, docking piece; 231, mold core cavity; 240, mold core; 241, cavity; 300, lifting assembly; 310, driving cylinder; 320, lifting piece; 321, outer sleeve; 322, ejector rod; 323, ejector pin; 324, lower hammer; 325, upper hammer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Figure 1 The overall structural diagram of a rotatable mold system for eliminating product parting and taking out is shown; Figure 1 In the present invention, a rotatable mold system for eliminating product parting and taking out parts includes an upper mold body 100 and a lower mold body 200. The upper mold body 100 and the lower mold body 200 can form a whole when the mold is closed, and can cooperate with the outside for injection molding. The upper mold body 100 and the lower mold body 200 are separated from each other during demolding to facilitate the removal of the workpiece.

[0026] Figure 2 The overall structural schematic diagram of the lower mold body 200 is shown; Figure 2The bottom plate 210, the middle piece 220 and the butt joint piece 230 are connected in sequence from the outside to the inside. The outside and the inside here refer to the workpiece as the reference, the side close to the workpiece is the inside, and the side away from the workpiece is the near side. The bottom plate 210, the middle piece 220 and the butt joint piece 230 are connected to each other by bolts to form the outer frame of the lower mold body 200, and can be disassembled from each other and allowed to be replaced separately, changing the traditional one-piece structure and adopting a multi-layer combined structure, which is more cost-effective in actual use; the butt joint end of the butt joint piece 230 has There is a concave mold core cavity 231, in which a mold core 240 is installed, and the mold core 240 has a cavity 241; the traditional structure of dividing the model into two mold chambers is changed, and the cavity 241 is completely embedded in the docking piece 230, which can avoid the parting line formed on the product by the upper mold body 100 and the lower mold body 200 during demolding. At this time, the upper mold body 100 only produces a function of cooperating with the lower mold body 200 to form a sealed space, and the entire workpiece is sunk in the lower mold body 200, but this makes the removal of the workpiece troublesome.

[0027] Based on the above, see Figure 3 , Figure 3 A schematic structural diagram of the jacking assembly 300 is shown; Figure 4 A schematic diagram of the structure of the lifting member 320 is shown; Figure 3 and Figure 4In the embodiment, a lifting assembly 300 is provided in the lower mold body 200, and the lifting assembly 300 includes a driving cylinder 310 and a lifting member 320. The driving cylinder 310 is installed in the bottom plate 210, and the lifting member 320 is installed in the middle member 220 and the docking member 230. When the driving cylinder 310 is started, the output end of the driving cylinder 310 can drive the lifting member 320 to lift the workpiece in the cavity 241; the lifting member 320 includes an outer sleeve 321, a push rod 322 and a push pin 323 which are sequentially sleeved from the outside to the inside, the outer sleeve 321 is connected to the docking member 230, and the push rod 322 is connected to the mold core 240. The ejector pin 323 is connected to the cavity 241, and the lower edges of the outer sleeve 321, the ejector rod 322 and the ejector pin 323 are gradually lowered; that is, the lower edge of the ejector pin 323 is located at the bottom of the entire ejection member 320, and first contacts the driving cylinder 310, followed by the ejector pin 323, and finally the outer sleeve 321. When the ejector pin 323 is subjected to force, it first rises and lifts the workpiece in the cavity 241, so that the workpiece is demolded in advance. At this time, the ejector rod 322 and the outer sleeve 321 are stationary, and relative movement occurs between them and the ejector pin 323, that is, one lift. As the ejector pin 323 continues to rise, when the lower edge of the ejector pin 323 is flush with the ejector rod 322, the ejector rod 323 is at this time. 2, along with the ejector pin 323, the ejector rod 322 pushes the mold core 240 to rise and leave the mold core cavity 231 until the outer sleeve 321, the ejector rod 322 and the lower edges of the ejector pin 323 are all flush, the outer sleeve 321 will limit the further rise of the ejector rod 322 and the ejector pin 323, and the ejection reaches the highest point; that is, in the present application, not only can the molded workpiece be demoulded and ejected in advance during one ejection, but the mold core 240 can also be ejected together with the second ejection, so that the mold core 240 can be cleaned while the workpiece is taken out, thereby improving the demoulding efficiency; the bottom of the ejector pin 323 is connected to a lower hammer head 324, and the top of the ejector pin 323 is connected to an upper Hammer 325; through the setting of the lower hammer 324, the ejector pin 323 can be indirectly contacted with the driving cylinder 310, and the contact area between the lifting member 320 and the driving cylinder 310 is increased, which is beneficial to protecting the ejector pin 323, and the setting of the upper hammer 325 can increase the contact area with the workpiece, which is beneficial to lifting the workpiece; the lifting assembly 300 is provided with two groups, which are symmetrically arranged with the center of the mold core 240 on the horizontal projection plane; by using at least two support points for the workpiece, the stability of the workpiece and the mold core 240 during lifting can be guaranteed, and the two support points are symmetrical with each other with the center of the mold core 240, so that the center of gravity of the mold core 240 is stable during lifting.

[0028] Continue to see Figure 3, a turntable 211 is rotatably provided on the bottom plate 210, and two driving cylinders 310 are both mounted on the turntable 211; in actual use, the turntable 211 can be connected to an external rotating device to drive the turntable 211 to rotate, thereby driving the two lifting assemblies 300 to rotate around the turntable 211, thereby driving the mold core 240 and the workpiece to rotate after being lifted, so as to cooperate with the external manipulator to take it out; there is a gap between the driving cylinder 310 and the lifting member 320, and two hoops 221 are arranged in the middle of the intermediate member 220, and the two hoops 221 are surrounded by the outside of the lifting member 320 and form a cage, and the driving cylinder 310 extends into the cage and docks with the lifting member 320 to achieve lifting; that is, by setting the driving cylinder 310 and the lifting member 320 at a distance, and the driving cylinder 310 is rotated on the turntable 211, under normal conditions, the driving cylinder 310 and the lifting member 320 are spaced apart. There is no interference with each other. At this time, even if the drive turntable 211 is driven to rotate, it can only drive the two driving cylinders 310 to rotate around the turntable 211, but cannot drive the mold core 240 and the workpiece to rotate; in the working state, the output end of the driving cylinder 310 rises and lifts the mold core 240 and the workpiece while extending into the cage. At this time, when the two driving cylinders 310 rotate around the turntable 211, they can rotate together with the cage, the lifting member 320, the lifted mold core 240 and the workpiece to realize the rotation drive of the mold core 240 and the workpiece, ensuring that the workpiece cannot be driven to rotate in the state of being lifted without demoulding, and avoiding the workpiece from rotating when the turntable 211 is mistakenly driven to rotate and driving the workpiece to rotate in the state of not being lifted; the intermediate member 220 is also provided with a limit member 222 corresponding to the lifting member 320, and the limit member 222 has a through hole, and the ejector pin 323 passes through the through hole; the arrangement of the through hole ensures that the ejector pin 323 is not easily offset when it moves.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A rotatable mold system for eliminating product parting and taking out, characterized in that: include: A lower mold body (200), wherein the butt end of the lower mold body (200) is provided with an inwardly concave mold core cavity (231), wherein a mold core (240) is arranged in the mold core cavity (231), and wherein the mold core (240) is provided with a mold cavity (241); A lifting assembly (300) is installed in the lower mold body (200). The lifting assembly (300) includes a driving cylinder (310) and a lifting member (320). When the driving cylinder (310) is started, the output end of the driving cylinder (310) can drive the lifting member (320) to lift the workpiece in the cavity (241).

2. A rotatable mold system for eliminating product parting and taking out according to claim 1, characterized in that: The lifting member (320) comprises an outer sleeve (321), a push rod (322) and a push pin (323) which are sequentially sleeved from the outside to the inside; the outer sleeve (321) is connected to the docking member (230); the push rod (322) is connected to the mold core (240); the push pin (323) is connected to the mold cavity (241); and the lower edges of the outer sleeve (321), the push rod (322) and the push pin (323) are gradually lowered.

3. A rotatable mold system for eliminating product parting and taking out according to claim 2, characterized in that: The bottom of the ejector pin (323) is connected to a lower hammer head (324), and the top of the ejector pin (323) is connected to an upper hammer head (325).

4. A rotatable mold system for eliminating product parting and taking out according to claim 3, characterized in that: The lifting components (300) are provided in two groups and are arranged symmetrically around the center of the mold core (240) on a horizontal projection plane.

5. The rotatable mold system for eliminating product parting and taking out according to claim 3 is characterized in that: The lower mold body (200) comprises a bottom plate (210), a middle piece (220) and a docking piece (230) which are sequentially connected from the outside to the inside; the mold core cavity (231) is provided on the docking piece (230); a turntable (211) is rotatably provided on the bottom plate (210), and two driving cylinders (310) are both installed on the turntable (211).

6. A rotatable mold system for eliminating product parting and taking out according to claim 5, characterized in that: There is a gap between the driving cylinder (310) and the lifting member (320), and two hoops (221) are arranged in the middle of the intermediate member (220). The two hoops (221) surround the lifting member (320) and form a cage. The driving cylinder (310) extends into the cage and docks with the lifting member (320) to achieve lifting.

7. A rotatable mold system for eliminating product parting and taking out according to claim 6, characterized in that: A limiting piece (222) corresponding to the lifting piece (320) is also arranged in the middle piece (220), and a through hole is provided on the limiting piece (222), and the ejector pin (323) passes through the through hole.

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