Die structure
The design of the female and male templates combined with the core-pulling assembly solves the problem of insufficient mold space, achieves compact molding of arc undercut products, improves production efficiency and mold strength, and reduces usage costs.
Patent Information
- Application Number
- CN202422668459.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In the prior art, when conventional mold designs arrange arc segments on a horizontal plane, the mold does not have sufficient effective space to form the arc segments, resulting in problems such as the mold being too large and insufficient in strength.
The design of female template and male template is adopted, combined with the primary core pulling assembly, secondary core pulling assembly and tertiary core pulling assembly. The forming of arc undercut products is realized through the coordinated movement of the slider insert and the arc insert. The inclined guide column and transmission component are used to drive the rotation and movement of the core pulling assembly to ensure the effective forming of the arc segment.
The compact structure of the arc undercut product is achieved, the mold size is reduced, the mold strength and production efficiency are improved, and the use cost is reduced.
Smart Images
Figure CN223419981U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to a mold structure. Background Art
[0002] In the automotive industry, the proportion of plastic products is rapidly increasing. Simultaneously, with the gradual development of the automotive industry, people's demands for the quality of various automotive products are also increasing. To meet the needs of various vehicle functions, the structure of automotive products is becoming increasingly complex. The corresponding plastic mold structure is more complex and more difficult. In the field of new energy vehicle battery packs, in order to achieve a smaller pressure drop at the inlet and outlet of the fluid, so that the fluid flows through the tube without dead angles and liquid accumulation, thereby achieving higher cooling efficiency, it is necessary to design the product into an arc shape, and in special cases, arrange it into a spatial arc shape.
[0003] Due to the particularity of the product structure, if the arc segments are arranged on a horizontal plane according to conventional mold design, the mold will not have enough effective space to form the arc segments. If additional motion mechanisms are required to force the arrangement within the plane, this will cause the mold to be too large and the mold strength to be insufficient. Utility Model Content
[0004] The purpose of the utility model is to provide a mold structure to alleviate the technical problem in the prior art that when the arc segments are arranged on a horizontal plane in a conventional mold design, the mold does not have enough effective space to form the arc segments.
[0005] The mold structure provided by the utility model is used to form arc undercut products, including a female template and a male template, including: a primary core pulling component, a secondary core pulling component, a tertiary core pulling component, a slider insert and an arc insert;
[0006] The arc undercut product has a straight segment and an arc segment, the arc segment is inclined toward the vertical direction, the slider insert is located on the outside of the straight segment, and the arc insert is located on the inside of the arc segment;
[0007] The top of the primary core-pulling assembly is connected to the mother template, and the primary core-pulling assembly is connected to the slider insert. The slider insert is used to form the straight section of the arc undercut product. The primary core-pulling assembly is configured to drive the slider insert to move in a direction away from the arc undercut product as the mother template opens the mold, so as to pull the slider insert out of the arc undercut product.
[0008] The primary core pulling assembly is slidably mounted on the tertiary core pulling assembly, the tertiary core pulling assembly is connected to the arc insert, and the tertiary core pulling assembly is configured to be rotatable relative to the arc undercut product to pull the arc insert out of the arc undercut product;
[0009] The secondary core-pulling assembly is connected with the male die plate, and is configured to be movable towards or away from the tertiary core-pulling assembly, so as to abut against or avoid the rotation space of the tertiary core-pulling assembly.
[0010] In an optional embodiment,
[0011] The primary core-pulling assembly comprises a primary core-pulling slider seat and an inclined guide column.
[0012] The primary core-pulling slider seat is slidingly installed on the tertiary core-pulling assembly, and is connected with the slider insert.
[0013] The inclined guide column is arranged obliquely relative to the vertical direction, one end of the inclined guide column is connected with the female die plate, and the other end of the inclined guide column passes through the primary core-pulling slider seat.
[0014] When the female die plate is opened upward, the female die plate drives the primary core-pulling slider seat to move away from the circular-arc reverse-drawing product through the inclined guide column, so as to draw out the slider insert from the straight line segment.
[0015] In an optional embodiment,
[0016] The tertiary core-pulling assembly comprises a tertiary core-pulling slider seat.
[0017] The primary core-pulling slider seat is slidingly connected to the tertiary core-pulling slider seat, so that the primary core-pulling slider seat is movable relative to the tertiary core-pulling slider seat.
[0018] In an optional embodiment,
[0019] The primary core-pulling assembly further comprises a pressing strip.
[0020] The pressing strip is connected with the tertiary core-pulling slider seat, and abuts against the primary core-pulling slider seat, and is used to limit the moving direction of the primary core-pulling slider seat, so that the primary core-pulling slider seat moves horizontally.
[0021] In an optional embodiment,
[0022] The tertiary core-pulling assembly comprises a first driving member and a transmission member.
[0023] The first driving member is in transmission connection with the transmission member, the transmission member is connected with the tertiary core-pulling slider seat, and the first driving member is configured to drive the tertiary core-pulling assembly to rotate in the vertical plane through the transmission member, so as to draw out the circular-arc insert from the circular-arc reverse-drawing product.
[0024] In an alternative embodiment,
[0025] The transmission member includes a rack, a gear set and a swing lever;
[0026] The rack is connected to the first driving member in a transmission connection, the gear set is meshed with the rack, and the gear set is connected to the swing rod, and the swing rod is connected to the three-core pulling slider seat;
[0027] The first driving member is configured to drive the rack to move, so as to drive the swing rod to rotate through the rack, so as to rotate the three-time core pulling assembly on a vertical plane.
[0028] In an alternative embodiment,
[0029] The three-time core pulling assembly also includes a guide block and a guide shaft;
[0030] The guide shaft is installed on the three-core pulling slider seat, and the guide block is provided with an arc-shaped guide groove. The guide shaft extends into the guide groove so that the three-core pulling slider seat can rotate along the guide groove.
[0031] In an alternative embodiment,
[0032] The secondary core pulling assembly includes a second driving member, a connecting rod, a secondary core pulling support block and a secondary core pulling slider;
[0033] The secondary core pulling support block is installed on the male template, and the secondary core pulling slider is connected to the secondary core pulling support block;
[0034] The second driving member is installed on the secondary core pulling support block, the driving end of the second driving member is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the secondary core pulling slider. The second driving member is configured to be able to drive the secondary core pulling slider to move toward or away from the tertiary core pulling slider seat through the connecting rod.
[0035] In an alternative embodiment,
[0036] The mold structure also includes a cooling component;
[0037] The cooling assembly includes a water nozzle and a water pipe;
[0038] The water nozzle is connected to the water pipe, and the water pipe passes through the primary core-pulling slider seat and extends into the arc undercut product to cool the arc undercut product.
[0039] In an alternative embodiment,
[0040] The water nozzle is arranged towards a vertical plane, and the water pipe is arranged towards a horizontal plane.
[0041] The mold structure provided by the utility model, when the mold opening action is performed after the arc reverse buckling product is formed, the female mold plate is opened, the one-time core pulling assembly moves along with the mold opening of the female mold plate to drive the sliding block insert to move away from the arc reverse buckling product, the sliding block insert is pulled out from the arc reverse buckling product, and then the secondary core pulling assembly moves away from the tertiary core pulling assembly, so as to avoid the rotation movement space of the tertiary core pulling assembly, the tertiary core pulling assembly rotates relative to the arc reverse buckling product, and the arc insert is pulled out from the arc reverse buckling product, so that the mold opening is completed, the arc segment of the arc reverse buckling product is formed in the mode that the tertiary core pulling assembly rotates, the structure is more compact, and the size is smaller, and the technical problem that the arc segment is arranged on the horizontal plane in the prior art mold design, so that the mold does not have enough effective space to form the arc segment is solved. BRIEF DESCRIPTION OF DRAWINGS
[0042] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0043] Figure 1 The overall structure of the mold structure provided by the embodiment of the utility model is shown in the sectional view.
[0044] Figure 2 The overall structure of the mold structure provided by the embodiment of the utility model is shown in the schematic view.
[0045] Figure 3 The sectional installation schematic view of the one-time core pulling assembly in the mold structure provided by the embodiment of the utility model is shown.
[0046] Figure 4 The installation structure schematic view of the one-time core pulling assembly in the mold structure provided by the embodiment of the utility model is shown.
[0047] Figure 5 The assembly schematic view of the sliding block insert, the arc insert and the arc reverse buckling product in the mold structure provided by the embodiment of the utility model is shown.
[0048] Figure 6 The structure schematic view of the arc reverse buckling product in the mold structure provided by the embodiment of the utility model is shown.
[0049] Figure 7 The installation structure schematic view of the tertiary core pulling assembly in the mold structure provided by the embodiment of the utility model is shown.
[0050] Figure 8 The structure section view of the secondary core-pulling assembly in the mold structure provided by the utility model embodiment is shown in the figure.
[0051] Figure 9 The structure schematic view of the cooling assembly in the mold structure provided by the utility model embodiment is shown in the figure.
[0052] Icon: 1-circular arc reverse buckling product; 2-straight line segment; 3-circular arc segment; 10-mother die plate; 20-male die plate; 30-upper die core; 40-lower die core; 50-supporting plate; 100-primary core-pulling assembly; 110-primary core-pulling slider seat; 120-inclined guide column; 130-pressing strip; 200-secondary core-pulling assembly; 210-second driving member; 220-connecting rod; 230-secondary core-pulling supporting block; 240-secondary core-pulling slider; 300-third core-pulling assembly; 310-third core-pulling slider seat; 320-first driving member; 330-transmission member; 331-rack; 332-gear set; 333-oscillating rod; 340-guiding block; 341-guiding groove; 350-guiding shaft; 400-slider insert; 500-circular arc insert; 600-cooling assembly; 610-water nozzle; 620-water pipe. DETAILED DESCRIPTION
[0053] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.
[0054] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0055] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0056] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.
[0057] like Figure 1 、 Figure 2 As shown, the mold structure provided in this embodiment is used to form an arc undercut product 1, including a female template 10 and a male template 20, the female template 10 is located at the top and the male template 20 is located at the bottom, and an upper mold core 30 and a lower mold core 40 are provided between the female template 10 and the male template 20, and a support plate 50 is also fixedly provided below the male template 20.
[0058] like Figure 5 、 Figure 6 As shown, the arc undercut product 1 has a straight segment 2 and an arc segment 3. The arc segment 3 is inclined toward the vertical direction, that is, there is an angle between the arc segment 3 and the horizontal plane. The arc segments 3 are arranged in a space and formed in the space. The slider insert 400 is located on the outside of the straight segment 2, and the arc insert 500 is located on the inside of the arc segment 3.
[0059] The mold structure further includes: a primary core pulling assembly 100 , a secondary core pulling assembly 200 , a tertiary core pulling assembly 300 , a slider insert 400 and an arc insert 500 .
[0060] The top of the one-time core-pulling component 100 is connected to the mother template 10, and the one-time core-pulling component 100 is connected to the slider insert 400. The slider insert 400 is used to form the straight section 2 of the arc undercut product 1. The one-time core-pulling component 100 is configured to be able to drive the slider insert 400 to move in a direction away from the arc undercut product 1 as the mother template 10 opens the mold, so as to pull the slider insert 400 out of the arc undercut product 1.
[0061] The primary core pulling assembly 100 is slidably mounted on the tertiary core pulling assembly 300 , which is connected to the arc insert 500 . The tertiary core pulling assembly 300 is configured to be rotatable relative to the arc inverted product 1 to pull the arc insert 500 out of the arc inverted product 1 .
[0062] The secondary core pulling assembly 200 is connected to the male template 20, and the secondary core pulling assembly 200 is configured to be able to move toward or away from the tertiary core pulling assembly 300, so that the secondary core pulling assembly 200 abuts against the tertiary core pulling assembly 300 or avoids the rotation space of the tertiary core pulling assembly 300.
[0063] The mold structure provided in this embodiment is that when the arc inverted product 1 is formed and the mold opening action is carried out, the mother template 10 is opened, and the primary core pulling component 100 moves upward as the mother template 10 opens, driving the slider insert 400 to move in the direction away from the arc inverted product 1, and the slider insert 400 is pulled out from the arc inverted product 1, and then the secondary core pulling component 200 moves in the direction away from the tertiary core pulling component 300, so as to make room for the tertiary core pulling component 300 to avoid rotational movement. The tertiary core pulling component 300 rotates relative to the arc inverted product 1 to pull the arc insert 500 out of the arc inverted product 1, thereby completing the mold opening, and the arc segment 3 of the arc inverted product 1 is formed by rotating the tertiary core pulling component 300, and the structure is more compact and the size is smaller, which alleviates the technical problem in the prior art that when the conventional mold design arranges the arc segment 3 on a horizontal plane, the mold does not have enough effective space to form the arc segment 3.
[0064] Regarding the structure of the primary core pulling assembly 100, specifically:
[0065] like Figure 3 、 Figure 4 As shown, the single core pulling assembly 100 includes a single core pulling slider seat 110 and an inclined guide column 120; the single core pulling slider seat 110 is slidably installed on the tertiary core pulling assembly 300, and the single core pulling slider seat 110 can slide freely relative to the tertiary core pulling assembly 300. Specifically, the tertiary core pulling assembly 300 includes a tertiary core pulling slider seat 310; the single core pulling slider seat 110 is slidably connected to the tertiary core pulling slider seat 310, so that the single core pulling slider seat 110 can move relative to the tertiary core pulling slider seat 310.
[0066] The primary core-pulling slider seat 110 is connected to the slider insert 400 , so that the slider insert 400 can slide along with the primary core-pulling slider seat 110 .
[0067] The inclined guide column 120 is set at an angle relative to the vertical direction. One end of the inclined guide column 120 is connected to the mother template 10, and the other end of the inclined guide column 120 passes through the one-time core-pulling slider seat 110. When the mother template 10 opens the mold and moves upward, the mother template 10 drives the one-time core-pulling slider seat 110 through the inclined guide column 120 to move away from the arc undercut product 1, so that the slider insert 400 is pulled out from the straight section 2.
[0068] Since the inclined guide column 120 is set at an angle, the inclined guide column 120 will generate an oblique upward force as the mother template 10 moves upward. In order to limit the moving direction of the single core pulling slider seat 110, in an optional embodiment, the single core pulling assembly 100 also includes a pressure strip 130; the pressure strip 130 is connected to the tertiary core pulling slider seat 310, and the pressure strip 130 is in contact with the single core pulling slider seat 110. The pressure strip 130 is used to limit the moving direction of the single core pulling slider seat 110 so that the single core pulling slider seat 110 moves horizontally.
[0069] Specifically, protrusions extend from both sides of the single core-pulling slider seat 110, and the pressure strip 130 abuts against the top surface of the protrusions. The pressure strip 130 can be used to limit the vertical movement of the single core-pulling slider seat 110, so that the single core-pulling slider seat 110 can only move horizontally, thereby utilizing the single core-pulling slider seat 110 to drive the slider insert 400 to move horizontally, and the slider insert 400 is pulled out from the arc inverted product 1.
[0070] Regarding the structure of the three-stage core pulling assembly 300, specifically:
[0071] like Figure 7 、 Figure 8 As shown, the three-time core pulling assembly 300 includes a first driving member 320 and a transmission member 330; the first driving member 320 is specifically configured as a cylinder, the first driving member 320 is fixed on the support plate 50, the driving end of the first driving member 320 is transmission-connected to the transmission member 330, the transmission member 330 is connected to the three-time core pulling slider seat 310, the driving force generated by the first driving member 320 acts on the three-time core pulling slider seat 310 through the transmission member 330, the first driving member 320 can drive the three-time core pulling assembly 300 to rotate on the vertical plane through the transmission member 330, so that the arc insert 500 rotates and the arc insert 500 is pulled out from the arc inverted product 1.
[0072] The transmission component 330 specifically includes a rack 331, a gear set 332 and a swing rod 333; the rack 331 is transmission-connected to the first driving component 320, the gear set 332 is meshed with the rack 331, and the gear set 332 is connected to the swing rod 333, and the swing rod 333 is connected to the three-core pulling slider seat 310.
[0073] Specifically, the gear set 332 includes a first transmission gear and a second transmission gear. The first transmission gear is meshed with the rack 331, and the second transmission gear is fixed to the end of the swing rod 333. The first transmission gear is meshed with the second transmission gear. The driving force generated by the first driving member 320 can drive the rack 331 to move, and then the first transmission gear and the second transmission gear to rotate, thereby driving the swing rod 333 to rotate, and then the three-time core pulling assembly 300 rotates on the vertical plane to complete the core pulling action of the arc segment 3 of the arc inverted product 1.
[0074] In an optional embodiment, the three-time core pulling assembly 300 also includes a guide block 340 and a guide shaft 350; the guide shaft 350 is installed on the three-time core pulling slider seat 310, the guide block 340 is fixed on the male template 20 or the support plate 50, and the guide block 340 is provided with an arc-shaped guide groove 341, and the guide shaft 350 extends into the guide groove 341, thereby limiting the rotation direction of the three-time core pulling slider seat 310, so that the three-time core pulling slider seat 310 can rotate along the guide groove 341.
[0075] Regarding the structure of the secondary core pulling assembly 200, specifically:
[0076] like Figure 8 As shown, the secondary core pulling assembly 200 includes a second driving member 210 , a connecting rod 220 , a secondary core pulling support block 230 and a secondary core pulling slider 240 .
[0077] The secondary core pulling support block 230 is installed on the male template 20, and the secondary core pulling slider 240 is connected to the secondary core pulling support block 230; the second driving member 210 is specifically configured as an oil cylinder, and the second driving member 210 is installed on the secondary core pulling support block 230. The driving end of the second driving member 210 is connected to one end of the connecting rod 220, and the other end of the connecting rod 220 is connected to the secondary core pulling slider 240. The driving force generated by the second driving member 210 can drive the secondary core pulling slider 240 to move toward or away from the tertiary core pulling slider seat 310 through the connecting rod 220.
[0078] During the mold opening process, the mother template 10 is opened, and the primary core-pulling slider seat 110 moves in the direction away from the arc undercut product 1 as the mother template 10 opens the mold. The primary core-pulling slider seat 110 drives the slider insert 400 to move, thereby pulling the slider insert 400 out from the straight segment 2. Then the second driving member 210 drives the secondary core-pulling slider 240 to move in the direction away from the tertiary core-pulling slider seat 310, leaving space for the tertiary core-pulling slider seat 310 to rotate. The first driving member 320 drives the tertiary core-pulling slider seat 310 to rotate, thereby driving the arc insert 500 to be pulled out from the arc segment 3, completing the mold opening action.
[0079] When the mold is closed, the tertiary core-pulling slide block seat 310 is first returned to the horizontal position, then the secondary core-pulling slide block 240 is moved towards the tertiary core-pulling slide block seat 310, so that the secondary core-pulling slide block 240 abuts against the tertiary core-pulling slide block seat 310, thereby limiting the position of the tertiary core-pulling slide block seat 310, and then the primary core-pulling slide block seat 110 is returned to the original position.
[0080] In an optional embodiment, as shown in Figure 9 The mold structure further comprises a cooling assembly 600; the cooling assembly 600 comprises a water nozzle 610 and a water pipe 620; the water nozzle 610 is connected with the water pipe 620, the water pipe 620 penetrates through the primary core-pulling slide block seat 110 and extends into the circular-arc undercut product 1, so as to cool the circular-arc undercut product 1; the water nozzle 610 is arranged towards the vertical plane, and the water pipe 620 is arranged towards the horizontal plane; compared with the traditional circular-arc core rod without water channel or with insufficient water channel, the arrangement of the water channel in the spatial circular-arc core rod can shorten the forming cycle and improve the stability of the product.
[0081] The mold structure provided by the utility model realizes the mold demolding action of spatial tertiary circular-arc core pulling, is stable in structure, low in cost, high in production efficiency, convenient in assembly of components, fast in disassembly, maintenance and assembly, high in production efficiency, stable in quality, small in mold size, uses a small-tonnage machine table, and is low in use cost.
[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A mold structure for forming an arc undercut product (1), comprising a female mold plate (10) and a male mold plate (20), characterized in that: include: A primary core pulling assembly (100), a secondary core pulling assembly (200), a tertiary core pulling assembly (300), a slider insert (400) and an arc insert (500); The arc undercut product (1) has a straight segment (2) and an arc segment (3), the arc segment (3) is inclined toward the vertical direction, the slider insert (400) is located outside the straight segment (2), and the arc insert (500) is located inside the arc segment (3); The top of the one-time core-pulling assembly (100) is connected to the mother template (10), and the one-time core-pulling assembly (100) is connected to the slider insert (400), and the slider insert (400) is used to form the straight section (2) of the arc undercut product (1). The one-time core-pulling assembly (100) is configured to be able to drive the slider insert (400) to move in a direction away from the arc undercut product (1) as the mother template (10) moves upward when the mold is opened, so as to pull the slider insert (400) out of the arc undercut product (1); The primary core pulling assembly (100) is slidably mounted on the tertiary core pulling assembly (300), the tertiary core pulling assembly (300) is connected to the arc insert (500), and the tertiary core pulling assembly (300) is configured to be rotatable relative to the arc undercut product (1) so as to pull the arc insert (500) out of the arc undercut product (1); The secondary core pulling assembly (200) is connected to the male template (20), and the secondary core pulling assembly (200) is configured to be able to move toward the direction close to the tertiary core pulling assembly (300) or away from the tertiary core pulling assembly (300), so that the secondary core pulling assembly (200) and the tertiary core pulling assembly (300) abut against or avoid the rotation space of the tertiary core pulling assembly (300).
2. The mold structure according to claim 1, characterized in that: The primary core pulling assembly (100) comprises a primary core pulling slider seat (110) and an inclined guide column (120); The primary core pulling slider seat (110) is slidably mounted on the tertiary core pulling assembly (300), and the primary core pulling slider seat (110) is connected to the slider insert (400); The inclined guide column (120) is arranged obliquely relative to the vertical direction, one end of the inclined guide column (120) is connected to the mother template (10), and the other end of the inclined guide column (120) passes through the primary core-pulling slider seat (110); When the mother template (10) opens the mold and moves upward, the mother template (10) drives the one-time core-pulling slider seat (110) to move in a direction away from the arc undercut product (1) through the inclined guide column (120), so that the slider insert (400) is pulled out from the straight section (2).
3. The mold structure according to claim 2, characterized in that: The three-time core pulling assembly (300) comprises a three-time core pulling slider seat (310); The primary core-pulling slider seat (110) is slidably connected to the tertiary core-pulling slider seat (310), so that the primary core-pulling slider seat (110) can move relative to the tertiary core-pulling slider seat (310).
4. The mold structure according to claim 3, characterized in that: The one-time core pulling assembly (100) further includes a pressure strip (130); The pressure strip (130) is connected to the third core-pulling slider seat (310), and the pressure strip (130) is in contact with the first core-pulling slider seat (110). The pressure strip (130) is used to limit the moving direction of the first core-pulling slider seat (110) so that the first core-pulling slider seat (110) moves horizontally.
5. The mold structure according to claim 3, characterized in that: The three-stage core pulling assembly (300) includes a first driving component (320) and a transmission component (330); The first driving member (320) is in transmission connection with the transmission member (330), and the transmission member (330) is connected to the three-core pulling slider seat (310). The first driving member (320) is configured to be able to drive the three-core pulling assembly (300) to rotate on a vertical plane through the transmission member (330) to extract the arc insert (500) from the arc undercut product (1).
6. The mold structure according to claim 5, characterized in that: The transmission component (330) includes a rack (331), a gear set (332) and a swing lever (333); The rack (331) is connected to the first driving member (320) in a transmission connection, the gear set (332) is meshed with the rack (331), and the gear set (332) is connected to the swing rod (333), and the swing rod (333) is connected to the three-core pulling slider seat (310); The first driving member (320) is configured to be able to drive the rack (331) to move, so as to drive the swing rod (333) to rotate through the rack (331), so as to make the three-time core pulling assembly (300) rotate on a vertical plane.
7. The mold structure according to claim 6, characterized in that: The three-stage core pulling assembly (300) further includes a guide block (340) and a guide shaft (350); The guide shaft (350) is installed on the three-core pulling slider seat (310), and the guide block (340) is provided with an arc-shaped guide groove (341). The guide shaft (350) extends into the guide groove (341) so that the three-core pulling slider seat (310) can rotate along the guide groove (341).
8. The mold structure according to claim 3, characterized in that: The secondary core pulling assembly (200) comprises a second driving member (210), a connecting rod (220), a secondary core pulling support block (230) and a secondary core pulling slider (240); The secondary core pulling support block (230) is installed on the male mold plate (20), and the secondary core pulling slider (240) is connected to the secondary core pulling support block (230); The second driving member (210) is installed on the secondary core pulling support block (230), the driving end of the second driving member (210) is connected to one end of the connecting rod (220), and the other end of the connecting rod (220) is connected to the secondary core pulling slider (240), and the second driving member (210) is configured to be able to drive the secondary core pulling slider (240) to move toward or away from the tertiary core pulling slider seat (310) through the connecting rod (220).
9. The mold structure according to claim 3, characterized in that: The mold structure further includes a cooling assembly (600); The cooling assembly (600) includes a water nozzle (610) and a water pipe (620); The water nozzle (610) is connected to the water pipe (620), and the water pipe (620) passes through the primary core-pulling slider seat (110) and extends into the circular arc undercut product (1) to cool the circular arc undercut product (1).
10. The mold structure according to claim 9, characterized in that: The water nozzle (610) is arranged toward a vertical plane, and the water pipe (620) is arranged toward a horizontal plane.