Mold facilitating demolding of internal thread structure of inclined sliding block
By using a combination of traction components and traction holes in the mold, the problem of complex demolding structures in the prior art is solved, and a simplified mold opening and demolding process is achieved, reducing costs and failure risks.
Patent Information
- Application Number
- CN202520517303.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The existing demolding structure of the inclined slider internal thread mold is complex, requiring multiple components and a power unit, resulting in high mold cost and susceptibility to mechanical failure.
The design employs a combination of traction components and traction holes. The opening action of the rear mold drives the movement of the front mold plate, thereby achieving demolding of the internal thread. This simplifies the structure and reduces reliance on components and power units.
This allows for simultaneous product demolding during the opening of the rear mold, simplifying the mold opening and demolding process and reducing mold costs and the risk of mechanical failure.
Smart Images
Figure CN223904437U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the mould field, more specifically, relate to a mould convenient to slanting slide block inner thread structure demoulding. BACKGROUND
[0002] Now internal thread demoulding basically adopts rotation demoulding, and the structure is complex, and the reset is troublesome, and the mechanical failure of not smooth reset appears easily, and there is the risk of pressing mould. Some adopt electric, and some adopt pneumatic, and then adopt gear rotation, and because the structure is complex, the mould specific volume is big, the product step distance is big, the water gap is long, and waste is serious.
[0003] Now the technology provides a slanting slide block inner side core-pulling thread-removing mould. The slanting slide block inner side core-pulling thread-removing mould, including fixed die plate and support plate, be equipped with upper push piece plate and lower push piece plate between the fixed die plate and support plate, the fixed seat is installed in the middle part of support plate, the fixed seat is connected with the main core of the cross section of triangular shape, the outer wall of main core is equipped with guide sliding groove, and the guide sliding groove is embedded with the thread slanting slide block of pushing plastic piece;Pushing device is installed on the lower push piece plate.Demoulding, the push plate pushes the push rod and makes the upper push piece plate and lower push piece plate push out plastic piece, and thread slanting slide block is pushed up, and thread slanting slide block moves inwards along the guide sliding groove of main core, so that the internal thread part is removed. Through the inward movement of thread slanting slide block along the guide sliding groove of main core, the pushing effect is good, and the product quality is improved.
[0004] But in the above technical scheme, push rod, upper push piece plate and lower push piece plate need to be set up to realize mold opening and product demoulding, that is, in addition to the power device that needs to pull the mold opening of movable die plate, external force needs to be applied to the push rod to realize demoulding, resulting in the complex structure of demoulding, which can cause the rise of mould cost, and many components are involved in mold opening. UTILITY MODEL CONTENTS
[0005] The utility model provides a mould convenient to slanting slide block inner thread structure demoulding to overcome the problem of complex demoulding structure in the above prior art, and can realize the demoulding of product simultaneously when opening the mould.
[0006] To solve the above technical problems, the utility model adopts the technical scheme: a mould convenient to demould inner thread structure of inclined slide block, including front mould and back mould, the front mould includes front mould fixed plate and front mould movable plate connected with front mould fixed plate slidingly, be provided with fixed core on the front mould fixed plate, be provided with inclined slide block on the front mould movable plate, the fixed core with the inclined slide block are connected through the guiding structure slidingly, be provided with front mould kernel on the front mould movable plate, the inclined slide block with the fixed core, the inclined slide block with the back mould enclose product cavity, the inclined slide block with the front mould kernel slidingly connected;Front mould movable plate is provided with traction hole, the back mould is installed with traction piece, in the mould closing state of the front mould with the back mould, the traction piece is inserted into the traction hole and is in interference fit with the traction hole.
[0007] In the above technical scheme, after product injection molding is completed, the external mold opening power device pulls the back mould and the front mould apart, when the back mould separates, because the traction piece and the traction hole are in interference fit, the friction between the two makes the front mould movable plate move with the back mould, in the process of the front mould movable plate moving, the fixed core is fixed on the front mould fixed plate and does not move, the inclined slide block slides inwards under the guidance of the fixed core, so that the inner thread corresponding to the inclined slide block is demoulded. When moving to the limit position of separation between the front mould fixed plate and the front mould movable plate, the friction between the traction piece and the traction hole is not enough to drive the front mould movable plate to move, the traction piece will slide relative to the traction hole and separate from the traction hole, realizing the separation of the back mould and the front mould movable plate, and completing mold opening. After mold opening, the product is located in the front mould kernel and has been separated from the fixed core and the inclined slide block, and the inner thread of the product is no longer limited, so the product can be directly taken out.
[0008] In addition, the action between the traction piece and the traction hole can also be that the friction between the two can make the front mould movable plate move with the traction piece, but the moving distance of the traction piece is greater than that of the front mould movable plate, so the traction piece will separate from the traction hole after moving a distance with the back mould, realizing the separation of the back mould and the front mould movable plate.
[0009] Further, the traction piece is a rubber cylinder, and the traction piece is installed on the back mould through a first fastener. The rubber traction piece has good deformation ability, and can be smoothly inserted into the traction hole in the case of interference between the size of the traction piece and the traction hole. When the front mould movable plate moves to the limit position, it can also smoothly separate from the traction hole under the action of external force, without causing large resistance to the movement of the back mould. In addition, even if the limit position of the front mould movable plate and the front mould top plate is not limited, the size of the traction piece can be set so that the traction piece will separate from the traction hole after moving a distance with the back mould, realizing the separation of the back mould and the front mould movable plate.
[0010] Further, the traction holes are provided with two groups and are respectively located on the opposite sides of the front mold moving plate, the number of the traction members is consistent with the number of the traction holes and one-to-one correspondence. One-to-one correspondence means that each traction member is respectively inserted into a traction hole, and the traction holes are distributed on the opposite sides of the front mold moving plate, which can make the traction force received by the front mold moving plate more uniform.
[0011] Further, the front mold is provided with an exhaust channel on the end face of the traction hole. When the traction member is inserted into the traction hole, if the air in the traction hole cannot be exhausted, the air will be compressed with the insertion of the traction member, and the compressed air will form a larger air resistance to the traction member to prevent the action of the traction member. The setting of the exhaust channel can exhaust the air in the traction hole when the traction member is inserted into the traction hole, so that the traction member will not be affected by the air resistance from the traction hole.
[0012] Further, the rear mold is provided with a positioning groove for placing the traction member. The positioning groove can facilitate the installation of the traction member.
[0013] Further, the front mold positioning plate is provided with a limiting rod provided with a limiting part, the limiting rod penetrates through the front mold moving plate and is in sliding connection with the front mold moving plate; one end of the front mold moving plate away from the front mold positioning plate is provided with a countersunk hole, and the limiting part of the limiting rod is located in the countersunk hole and can slide along the countersunk hole. When the front mold moving plate and the front mold positioning plate are separated, the front mold moving plate moves along the limiting rod, and when it moves to the limit position separated from the front mold positioning plate, the limiting part of the limiting rod abuts against the inner wall surface of the countersunk hole. The limiting rod can limit the movement of the front mold moving plate, making the movement more stable, and also limiting the separation distance between the front mold positioning plate and the front mold moving plate through the limiting part.
[0014] Further, the front mold positioning plate and the front mold moving plate are provided with an elastic member for pushing the front mold moving plate away from the front mold positioning plate. In the closed mold state of the front mold and the rear mold, the front mold moving plate compresses the elastic member, and in the opening mold state of the rear mold, the elastic member can assist the front mold moving plate to move through the elastic force driven by the traction member, making the movement of the front mold moving plate more smooth, especially at the beginning of the opening mold action of the rear mold, the combined action of the elastic force and the traction force can reduce the jamming of the opening mold action.
[0015] Further, one end of the front mold moving plate close to the front mold positioning plate is provided with a containing hole, the elastic member is a spring and at least part of it is located in the containing hole; one end of the elastic member abuts against the front mold positioning plate, and the other end abuts against the bottom surface of the containing hole; the elastic member is sleeved on the limiting rod. The containing hole and the limiting rod limit the elastic member, avoiding the deviation of the elastic force when the elastic member is compressed and stretched, and also avoiding the disengagement of the elastic member from the front mold positioning plate and the front mold moving plate.
[0016] Further, the front mold moving plate is provided with the elastic member on the side adjacent to the traction member. The elastic force of the elastic member and the traction force of the traction member are distributed in four directions of the front mold moving plate, so that the stress of the front mold moving plate is more uniform.
[0017] Further, the guide structure comprises a protruding part arranged on two sides of the shaping core and an inclined sliding groove arranged on the inclined sliding block and engaged with the protruding part.
[0018] Compared with the prior art, the beneficial effects are that through cooperation of the traction member and the traction hole, the rear mold drives the front mold moving plate to move and realize the action of opening the mold at the same time when the rear mold is opened, that is, the product is demolded at the same time when the rear mold is opened, and that no pushing rod or other power device for pushing the front mold moving plate to move is needed to be added to the front mold, so that the structure of mold opening and demolding is simplified. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a top view of the mold convenient for demolding of an inclined sliding block internal thread structure;
[0020] Figure 2 is a sectional view of A-A direction of Figure 1
[0021] Figure 3 is a sectional view of B-B direction of Figure 1
[0022] In the figure, 100 is a rear mold; 110 is a traction member; 120 is a first fastener; 130 is a positioning groove; 200 is a front mold plate; 210 is a shaping core; 220 is a limiting rod; 221 is a limiting part; 300 is a front mold moving plate; 310 is an inclined sliding block; 320 is a front mold core; 330 is a traction hole; 340 is an exhaust channel; 350 is a counterbore hole; 360 is a containing hole; and 400 is an elastic member. DETAILED DESCRIPTION
[0023] The drawings are only used for illustrative description and cannot be understood as limitation of the patent; in order to better illustrate the embodiment, some parts of the drawings are omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for illustrative description and cannot be understood as limitation of the patent.
[0024] The same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "long", "short" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation and be operated, therefore, the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0025] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.
[0026] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0027] The technical solutions of the present application will be further described in detail below through specific embodiments and in combination with the drawings:
[0028] Embodiment 1
[0029] As Figure 1An embodiment 1 of a mold facilitating demolding of an inner thread structure of an inclined sliding block is shown, comprising a front mold and a rear mold 100, the front mold comprising a front mold fixed plate 200 and a front mold movable plate 300 in sliding connection with the front mold fixed plate 200, the front mold fixed plate 200 being provided with a shaped core 210, the front mold movable plate 300 being provided with an inclined sliding block 310, the shaped core 210 and the inclined sliding block 310 being in sliding connection through a guide structure, the front mold movable plate 300 being provided with a front mold kernel 320, the inclined sliding block 310, the shaped core 210, the inclined sliding block 310 and the rear mold 100 surrounding a product cavity, the inclined sliding block 310 being in sliding connection with the front mold kernel 320; the front mold movable plate 300 being provided with a traction hole 330, the rear mold 100 being provided with a traction member 110, in a closed state of the front mold and the rear mold 100, the traction member 110 being inserted into the traction hole 330 and being in interference fit with the traction hole 330.
[0030] Specifically, the traction member 110 is a cylinder of rubber material, the traction member 110 being installed on the rear mold 100 through a first fastener 120. The traction member 110 of rubber material has good deformation ability, and in the case that the size of the traction member 110 is in interference with the traction hole 330, the traction member 110 can also be more smoothly inserted into the traction hole 330 through deformation. When the front mold movable plate 300 moves to the limit position, it can also be more smoothly separated from the traction hole 330 under the action of external force, without bringing great resistance to the movement of the rear mold 100. In addition, even if the limit position of the front mold movable plate 300 and the front mold top plate is not provided with a limit, the size of the traction member 110 can be set so that the traction member 110 will be separated from the traction hole 330 after moving a distance with the rear mold 100, realizing the separation of the rear mold 100 and the front mold movable plate 300.
[0031] In the present embodiment, the traction hole 330 is provided with two groups and is located on the opposite sides of the front mold movable plate 300, the number of the traction members 110 being consistent with and corresponding to the number of the traction holes 330. One-to-one correspondence means that each traction member 110 is respectively inserted into one traction hole 330, and distributing the traction holes 330 on the opposite sides of the front mold movable plate 300 can make the traction force received by the front mold movable plate 300 more uniform. In the present embodiment, the traction holes 330 on each side are provided with two.
[0032] In the present embodiment, the front mold moving plate 300 is provided with a communication traction hole 330 and an exhaust channel 340 on the end surface of the front mold moving plate. The rear mold 100 is provided with a positioning groove 130 for placing the traction member 110. When the traction member 110 is inserted into the traction hole 330, if the air in the traction hole 330 cannot be exhausted, the air will be compressed gradually with the insertion of the traction member 110, and the compressed air will form a large air resistance to the traction member 110 to prevent the action of the traction member 110. The setting of the exhaust channel 340 can exhaust the air in the traction hole 330 from the exhaust channel 340 when the traction member 110 is inserted into the traction hole 330, so that the traction member 110 will not be subjected to air resistance from the traction hole 330. The positioning groove 130 can facilitate the installation of the traction member 110.
[0033] In the present embodiment, the front mold moving plate 300 is provided with a communication traction hole 330 and an exhaust channel 340 on the end surface of the front mold moving plate. The rear mold 100 is provided with a positioning groove 130 for placing the traction member 110. When the traction member 110 is inserted into the traction hole 330, if the air in the traction hole 330 cannot be exhausted, the air will be compressed gradually with the insertion of the traction member 110, and the compressed air will form a large air resistance to the traction member 110 to prevent the action of the traction member 110. The setting of the exhaust channel 340 can exhaust the air in the traction hole 330 from the exhaust channel 340 when the traction member 110 is inserted into the traction hole 330, so that the traction member 110 will not be subjected to air resistance from the traction hole 330. The positioning groove 130 can facilitate the installation of the traction member 110.
[0034] The working principle or working process of the present embodiment is as follows: after the product is injection molded, the external mold opening power device pulls the rear mold 100 and the front mold apart. When the rear mold 100 is separated, the traction member 110 is in interference fit with the traction hole 330, so the friction between the two causes the front mold moving plate 300 to move with the rear mold 100. In the process of moving the front mold moving plate 300, the shaping core 210 is fixed on the front mold fixed plate 200 and does not move, and the inclined slide block 310 slides inward under the guidance of the shaping core 210, so that the corresponding internal thread at the inclined slide block 310 is demolded. The front mold fixed plate 200 moves to the bottom surface of the countersunk hole 350 and abuts against the limiting portion 221, so the front mold moving plate 300 cannot move with the rear mold 100 any more. The friction between the traction member 110 and the traction hole 330 is not enough to drive the front mold moving plate 300 to move, so the traction member 110 will slide relative to the traction hole 330 and be separated from the traction hole 330, realizing the separation of the rear mold 100 and the front mold moving plate 300 and completing mold opening. After mold opening, the product is located in the front mold core 320 and has been separated from the shaping core 210 and the inclined slide block 310, and the internal thread of the product is no longer limited, so the product can be directly taken out.
[0035] The beneficial effect of the embodiment: through the cooperation of the traction member 110 and the traction hole 330, the rear mold 100 drives the front mold moving plate 300 to move and realize the action of opening the mold at the same time when the rear mold 100 is opened, that is, the product is demolded at the same time when the rear mold 100 is opened, without the need to increase a push rod and other components for pushing the front mold moving plate 300 to move and additional power devices in the front mold, thereby simplifying the structure of mold opening and demolding.
[0036] Embodiment 2
[0037] The difference between the embodiment 2 of the mold facilitating the demolding of the inclined sliding block inner thread structure and the embodiment 1 is that the elastic member 400 for pushing the front mold moving plate 300 away from the front mold fixed plate 200 is arranged between the front mold fixed plate 200 and the front mold moving plate 300. In the closed mold state of the front mold and the rear mold 100, the front mold moving plate 300 compresses the elastic member 400, and when the rear mold 100 is opened, the elastic member 400 can assist the traction member 110 in driving the front mold moving plate 300 to move through the elastic force, so that the movement of the front mold moving plate 300 is smoother, especially at the moment when the rear mold 100 starts to act when opening the mold, the combined action of the elastic force and the traction force can reduce the jamming of the opening action.
[0038] Specifically, the end of the front mold moving plate 300 close to the front mold fixed plate 200 is provided with a containing hole 360, and the elastic member 400 is a spring and at least partially located in the containing hole 360; one end of the elastic member 400 abuts against the front mold fixed plate 200, and the other end abuts against the bottom surface of the containing hole 360; and the elastic member 400 is sleeved on the limiting rod 220. The side of the front mold moving plate 300 adjacent to the traction member 110 is provided with the elastic member 400.
[0039] The containing hole 360 and the limiting rod 220 limit the elastic member 400, so as to avoid the deviation of the elastic force when the elastic member 400 is compressed and stretched, and also to avoid the elastic member 400 from being separated from the front mold fixed plate 200 and the front mold moving plate 300. The elastic force of the elastic member 400 and the traction force of the traction member 110 are distributed in four directions of the front mold moving plate 300, so that the stress of the front mold moving plate 300 is more uniform.
[0040] The remaining features and working principles of the embodiment are consistent with those of the embodiment 1.
[0041] Embodiment 3
[0042] The difference between the embodiment 3 of the mold facilitating the demolding of the inclined sliding block inner thread structure and the embodiments 1 and 2 is that the guide structure includes the protruding parts arranged on both sides of the shaping core 210 and the inclined sliding groove arranged on the inclined sliding block 310 and engaged with the protruding parts.
[0043] The remaining features and working principles of the embodiment are consistent with those of the embodiment 1 or 2.
[0044] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation manners of the present application. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and also impossible to enumerate all the implementation manners. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A mold for easy demolding of an inclined slider internal thread structure, comprising a front mold and a rear mold (100), wherein the front mold comprises a front mold fixed plate (200) and a front mold movable plate (300) slidably connected to the front mold fixed plate (200), a shaping core (210) is provided on the front mold fixed plate (200), and an inclined slider (310) is provided on the front mold movable plate (300), wherein the shaping core (210) and the inclined slider (310) are slidably connected by a guide structure, characterized in that, The front mold moving plate (300) is provided with a front mold core (320). The inclined slider (310), the shaping core (210), the inclined slider (310) and the rear mold (100) form a product cavity. The inclined slider (310) is slidably connected to the front mold core (320). The front mold moving plate (300) is provided with a traction hole (330). The rear mold (100) is equipped with a traction member (110). When the front mold and the rear mold (100) are in the closed state, the traction member (110) is inserted into the traction hole (330) and is interference-fitted with the traction hole (330).
2. The mold for easy demolding of the inclined slider internal thread structure according to claim 1, characterized in that, The traction component (110) is a cylindrical rubber material, and the traction component (110) is installed on the rear mold (100) by a first fastener (120).
3. The mold for easy demolding of the inclined slider internal thread structure according to claim 2, characterized in that, Two sets of traction holes (330) are provided and are located on opposite sides of the front mold moving plate (300). The number of traction components (110) is consistent with the number of traction holes (330) and corresponds one-to-one.
4. The mold for easy demolding of the inclined slider internal thread structure according to claim 3, characterized in that, The front mold moving plate (300) is provided with an exhaust channel (340) that connects the traction hole (330) and the end face of the front mold moving plate (300).
5. A mold for easy demolding of an inclined slider with an internal thread structure according to claim 2, characterized in that, The rear mold (100) is provided with a positioning groove (130) for placing the traction member (110).
6. A mold for easy demolding of an inclined slider with an internal thread structure according to any one of claims 1-5, characterized in that, The front mold fixed plate (200) is equipped with a limiting rod (220) having a limiting part (221). The limiting rod (220) passes through the front mold moving plate (300) and is slidably connected to the front mold moving plate (300). A countersunk hole (350) is provided at one end of the front mold moving plate (300) away from the front mold fixed plate (200). The limiting part (221) of the limiting rod (220) is located in the countersunk hole (350) and can slide along the countersunk hole (350).
7. A mold for easy demolding of an inclined slider with an internal thread structure according to claim 6, characterized in that, An elastic element (400) is provided between the front mold fixed plate (200) and the front mold moving plate (300) to push the front mold moving plate (300) away from the front mold fixed plate (200).
8. A mold for easy demolding of an inclined slider with an internal thread structure according to claim 7, characterized in that, The front mold moving plate (300) has a receiving hole (360) at one end near the front mold fixed plate (200), and the elastic element (400) is a spring and is at least partially located in the receiving hole (360); one end of the elastic element (400) abuts against the front mold fixed plate (200), and the other end abuts against the bottom surface of the receiving hole (360); the elastic element (400) is fitted onto the limiting rod (220).
9. A mold for easy demolding of an inclined slider with an internal thread structure according to claim 7, characterized in that, The elastic element (400) is provided on the side of the front mold moving plate (300) adjacent to the traction member (110).
10. A mold for easy demolding of an inclined slider with an internal thread structure according to any one of claims 1-5, characterized in that, The guide structure includes protrusions on both sides of the shaping core (210) and oblique grooves on the oblique slider (310) that engage with the protrusions.