A slideable demolding base mold

Abstract

The application discloses a base mold capable of slidable demolding, which comprises a front mold component, a rear mold component and a slidable demolding mechanism; the front mold component comprises a front mold plate, a cavity and a base female die are arranged in the front mold plate, the cavity is arranged above the base female die, and a first inclined guide hole is arranged on the base female die; the rear mold component comprises a rear mold plate, a base male die is arranged on the rear mold plate, and the base male die and the base female die form a base injection cavity; the slidable demolding mechanism comprises a first sliding piece and a first core, the first sliding piece is arranged in the cavity and is arranged to be slidable along the height direction of the cavity, the first core is connected with the first sliding piece and is arranged to be slidable along the width direction of the first sliding piece, and the first core penetrates through the first inclined guide hole and extends into the base injection cavity.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to a sliding demolding base mold. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. Injection molds typically consist of a front mold and a rear mold. When the front and rear molds are engaged, molten material is injected into the cavity through the gate. When the mold is opened, the front and rear molds separate to remove the plastic product.

[0003] A base for a binding machine is used to load batteries and power components. The base has upwardly extending sidewalls on both sides, and the inner and outer sides of the sidewalls have complex structures such as holes, grooves, and protrusions. The structure on the outer side of the sidewall can be formed by a side core-pulling mechanism. However, the structure on the inner side of the sidewall cannot be formed by the side core-pulling mechanism. If the front mold core is used to form the structure on the inner side of the sidewall, the formed product will be stuck with the front mold core, making it impossible for the formed product to be demolded smoothly. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a sliding demolding base mold to solve the technical problems of difficult molding and inconvenient demolding of binding machine bases in the prior art.

[0005] The present invention is achieved by the following technical solution: a sliding demolding base mold, comprising a front mold assembly, a rear mold assembly and a sliding demolding mechanism;

[0006] The front mold assembly includes a front template, which has a cavity and a base mold. The cavity is located above the base mold, and the base mold has a first oblique guide hole.

[0007] The rear mold assembly includes a rear template, on which a base punch is provided, and the base punch and the base die form a base injection cavity;

[0008] The sliding demolding mechanism includes a first sliding member and a first core. The first sliding member is disposed in the cavity and is slidably disposed along the height direction of the cavity. The first core is connected to the first sliding member and is slidably disposed along the width direction of the first sliding member. The first core passes through the first oblique guide hole and extends into the injection cavity of the base.

[0009] In one possible implementation, the first slider is provided with a groove, and the top of the first core is provided with a second slider, which is slidably disposed in the groove.

[0010] In one possible implementation, the first slider includes an upper slider and a lower slider that are fixedly connected. The groove is provided at the upper end of the lower slider, the upper slider covers the groove, and the lower end of the lower slider is provided with a through hole that communicates with the groove.

[0011] In one possible implementation, the first sliding member is provided with a first guide post, and the front template is provided with a first guide hole, with the first guide post passing through the first guide hole.

[0012] In one possible implementation, the lower end of the first core is provided with a shaping portion, which is used to form the desired shape on the product.

[0013] In one possible implementation, the front template is provided with a cover plate for closing the opening of the cavity.

[0014] In one possible implementation, a side core-pulling mechanism is also included, the side core-pulling mechanism including a second core and an oblique guide, one end of the second core extending into the injection cavity of the base, the other end of the second core being provided with a second oblique guide hole, and the oblique guide passing through the second oblique guide hole;

[0015] The front mold assembly further includes a front mold fixing plate, the front template is disposed on the front mold fixing plate, the second core is slidably disposed on the front template, the inclined guide is fixedly disposed on the front mold fixing plate, and the front template is provided with a through hole for the inclined guide to pass through.

[0016] In one possible implementation, the rear template is provided with a first clearance groove, which communicates with the second oblique guide hole, and one end of the oblique guide extends into the first clearance groove.

[0017] In one possible implementation, the front template is provided with a plurality of limiting bolts, which are located in the moving direction of the second core.

[0018] In one possible implementation, the front template is provided with a plurality of elastic positioning elements, and the second core is provided with a first positioning groove corresponding to the elastic positioning elements.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: when the molded product is needed, the front mold assembly and the rear mold assembly are separated. At this time, since the first core is engaged with the molded product, the first core moves with the rear mold assembly. Therefore, the first core drives the first sliding member to slide in the cavity. Due to the restriction of the first oblique guide hole, the first core will shift during the movement, thereby moving the first core away from the molded product to achieve demolding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the sliding demolding base mold of the present invention;

[0021] Figure 2 This is a schematic diagram of the front mold assembly in the slidable demolding base mold of the present invention;

[0022] Figure 3 This is a schematic diagram of the front mold assembly in the open mold state of the sliding demolding base mold of the present invention.

[0023] Figure 4 This is a schematic diagram of the front mold assembly in the slidable demolding base mold of the present invention after the second core is hidden;

[0024] Figure 5 This is a schematic diagram of the rear mold assembly in the slidable demolding base mold of the present invention;

[0025] Figure 6 This is a schematic diagram of the rear mold assembly in the open mold state of the slidable demolding base mold of the present invention.

[0026] Figure 7 This is a cross-sectional view of the slidable demolding base mold of the present invention;

[0027] Figure 8 This is an exploded view of the sliding demolding mechanism in the sliding demolding base mold of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the second core in the slidable demolding base mold of the present invention;

[0029] Figure 10 This is an exploded view of the second core in the sliding demolding base mold of the present invention.

[0030] In the picture:

[0031] 100. Front mold fixing plate; 101. Second guide post;

[0032] 200. Front mold pad;

[0033] 300. Front template; 301. Base die; 302. Cavity; 303. First inclined guide hole; 304. First guide hole; 305. Cover plate; 306. Limiting bolt; 307. Elastic positioning element; 308. Guide groove; 309. Limiting element;

[0034] 400. Rear template; 401. Base punch; 402. Second guide hole; 403. Third guide hole; 404. First clearance groove;

[0035] 500, spacer blocks;

[0036] 600. Rear mold fixing plate;

[0037] 700, First sliding member; 7001, Upper sliding member; 7002, Lower sliding member; 702, First core; 7021, Shaping part; 703, Slide groove; 704, Second sliding member; 705, First guide post;

[0038] 800, Second core; 801, Inclined guide; 8011, Second clearance groove; 802, Second inclined guide hole; 803, Top rod; 8031, Outer rod; 8032, Inner rod; 804, Second elastic element; 805, Outer slider; 8051, First positioning groove; 8052, Positioning protrusion; 806, Inner slider; 8061, Second positioning groove; 807, Limiting groove; 900, Lifting plate; 901, Top pin; 902, Third guide post; 903, First elastic element. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0042] like Figure 1-10The illustrated sliding demolding base mold includes a front mold assembly, a rear mold assembly, and a sliding demolding mechanism. The front mold assembly includes a front template 300, which has a cavity 302 and a base cavity 301. The cavity 302 is located above the base cavity 301, and the base cavity 301 has a first oblique guide hole 303. The rear mold assembly includes a rear template 400, which has a base punch 401. The base punch 401 and the base cavity 301 form a base injection cavity. The sliding demolding mechanism includes a first sliding member 700 and a first core 702. The first sliding member 700 is disposed in the cavity 302 and is slidably disposed along the height direction of the cavity 302. The first core 702 is connected to the first sliding member 700 and is slidably disposed along the width direction of the first sliding member 700. The first core 702 passes through the first oblique guide hole 303 and extends into the base injection cavity. It should be noted that when the molded product is needed, the front mold assembly and the rear mold assembly are separated. At this time, because the first core 702 is engaged with the molded product, the first core 702 moves with the rear mold assembly. Therefore, the first core 702 drives the first sliding member 700 to slide in the cavity 302. Due to the restriction of the first inclined guide hole 303, the first core 702 moves along the inclined direction of the first inclined guide hole 303, thereby achieving the effect of the first core 702 moving away from the molded product, which facilitates the demolding of the molded product. In addition, the front mold fixing plate 100 is also provided with a gate, which is connected to the main runner. The main runner is connected to two branch runners, which are connected to the base injection cavity. The molten material flows into the base injection cavity through the gate, and then is rapidly cooled and molded under the action of the mold cooling system. Finally, the mold is opened and the molded product is taken out.

[0043] Please refer to Figure 2 , Figure 5 and Figure 6The front mold assembly also includes a front mold fixing plate 100 and a front mold pad 200. The front mold pad 200 is disposed on the front mold fixing plate 100, and the front template 300 is disposed on the front mold pad 200. The rear mold assembly also includes a rear mold fixing plate 600 and two pads 500, which are respectively disposed on both sides of the rear mold fixing plate 600. The rear template 400 is disposed on the pads 500. The rear mold fixing plate 600 is provided with a lifting plate 900, and the lifting plate 900 is provided with multiple ejector pins 901. The rear template 400 and the base punch 401 are provided with multiple through pin holes, and each ejector pin 901 is slidably disposed in each pin hole. The front mold fixing plate 100 is provided with a second guide post 101, and the front template 300, the rear template 400, the pad, and the rear mold fixing plate 600 are all provided with the second guide post. The second guide post 101 is slidably connected to the second guide hole 402 corresponding to 101. This setting can improve the stability of the mold movement during mold opening and closing. The lifting plate 900 is provided with a third guide post 902, and the rear template 400 is provided with a third guide hole 403 corresponding to the third guide post 902. The third guide post 902 is slidably connected to the third guide hole 403. This setting can ensure the stability of the lifting plate 900 movement during demolding. A first elastic element 903 is sleeved on the third guide post 902. One end of the first elastic element 903 abuts against the lifting plate 900, and the other end of the first elastic element 903 abuts against the rear template 400. The setting of the first elastic element 903 can buffer the lifting movement of the lifting plate 900 and help the lifting plate 900 to reset.

[0044] Please refer to Figure 8 In one possible implementation, the first sliding member 700 is provided with a groove 703, and the top end of the first core 702 is provided with a second sliding member 704, which is slidably disposed within the groove 703. It is readily understood that there are two second sliding members 704, respectively located on opposite sides of the first core 702. The first core 702 and the second sliding members 704 are connected by a fixed shaft. The second sliding member 704 and the first core 702 together form a T-shape. When the product is demolded, the first core 702 slides along the extending direction of the groove 703. Furthermore, the second sliding member 704 and the groove 703 also guide the movement of the first core 702.

[0045] Please refer to Figure 8In one possible implementation, the first sliding member 700 includes an upper sliding block 7001 and a lower sliding block 7002 fixedly connected. A groove 703 is provided at the upper end of the lower sliding block 7002, and the upper sliding block 7001 covers the groove 703. The lower end of the lower sliding block 7002 is provided with a through hole, which communicates with the groove 703. It is easy to understand that the through hole and the groove 703 combine to form a T-shape, which matches the shape of the first core 702 and the second sliding member 704. This can limit the position of the first core 702 and prevent the first core 702 from accidentally detaching from the first sliding member 700. In addition, the upper sliding block 7001 and the lower sliding block 7002 are connected by fastening screws. When the first core 702 needs to be replaced, the operator must first remove the upper sliding block 7001, then remove the second sliding member 704, and finally pull out the first core 702.

[0046] Please refer to Figure 7 In one possible implementation, the first sliding member 700 is provided with a first guide post 705, and the front template 300 is provided with a first guide hole 304, with the first guide post 705 passing through the first guide hole 304. It should be noted that in this embodiment, there are two first guide posts 705, respectively located near both ends of the first sliding member 700. Correspondingly, there are also two first guide holes 304, respectively located on the front template 300 and the base die 301. The first guide posts 705 guide the movement of the first sliding member 700, preventing it from shifting during sliding.

[0047] Please refer to Figure 8 In one possible implementation, the lower end of the first core 702 is provided with a shaping part 7021, which is used to form the desired shape on the product. It should be noted that the shaping part 7021 has structures such as grooves, protrusions, and holes, which can be used to form the desired structure on the inner side of the product sidewall.

[0048] Please refer to Figure 7 In one possible implementation, a cover plate 305 is provided on the front template 300 to close the opening of the cavity 302. It is easy to understand that when the sliding demolding mechanism is installed in the cavity 302, the cover plate 305 closes the opening of the cavity 302, which not only limits the first sliding member 700 to prevent it from sliding out of the cavity 302, but also ensures the appearance integrity of the front template 300. Furthermore, the cover plate 305 is installed on the front template 300 with fastening screws, so when the operator needs to maintain or replace the sliding demolding mechanism, the cover plate 305 can be directly removed.

[0049] Please refer to Figure 3In one possible implementation, a side core-pulling mechanism is also included. The side core-pulling mechanism includes a second core 800 and an inclined guide 801. One end of the second core 800 extends into the injection cavity of the base, and the other end of the second core 800 is provided with a second inclined guide hole 802. The inclined guide 801 passes through the second inclined guide hole 802. The front mold assembly also includes a front mold fixing plate 100. The front template 300 is disposed on the front mold fixing plate 100. The second core 800 is slidably disposed on the front template 300. The inclined guide 801 is fixedly disposed on the front mold fixing plate 100. The front template 300 is provided with a through hole for the inclined guide 801 to pass through. It is easy to understand that when the mold opens, the front mold fixing plate 100 separates from the front template 300 under the action of the external driving component. The front mold fixing plate 100 will drive the inclined guide 801 to move together. During the movement, the inclined guide 801 drives the second core 800 away from the product, so that the product can be smoothly demolded from the second core 800. Subsequently, the rear mold assembly separates from the front template 300, and the product moves with the rear template 400. Since the product is engaged with the first core 702 at this time, the first core 702 moves with the product. The movement of the first sliding member 700 causes the first core 702 to move. Due to the restriction of the first inclined guide hole 303, the first core 702 can only move along the inclined direction of the first inclined guide hole 303. That is to say, the first core 702 will move to the left while moving downward, so as to separate the first core 702 from the molded product. Finally, the lifting plate 900 performs a lifting motion under the action of the external driving member, and the molded product located on the base punch 401 is ejected by the action of the ejector pin 901, so that the product is demolded.

[0050] Please refer to Figure 4 Specifically, there are two side core-pulling mechanisms, located on opposite sides of the mold. The two side core-pulling mechanisms have different structures to form different shapes on the two side walls of the product. In addition, the front template 300 is provided with a guide groove 308, and the second core 800 is slidably disposed in the guide groove 308. Limiting members 309 are provided on both sides of the guide groove 308, and the second core 800 is engaged with the limiting members 309. The guide groove 308 allows the second core 800 to slide smoothly along the guide groove 308, preventing the second core 800 from shifting and facilitating smooth separation of the second core 800 from the product. The limiting members 309 restrict the second core 800 to the front template 300, allowing the second core 800 to move away from the rear template 400 during demolding, thus preventing the second core 800 from obstructing product demolding.

[0051] Please refer to Figure 5In one possible implementation, the rear template 400 is provided with a first clearance groove 404, which communicates with a second oblique guide hole 802. One end of the oblique guide member 801 extends into the first clearance groove 404. It is easy to understand that when the mold is fully closed, the oblique guide member 801 will extend out of the second oblique guide hole 802 and into the first clearance groove 404, making the mold closing more thorough and also improving the driving effect of the oblique guide member 801 on the second core 800.

[0052] Please refer to Figure 2 In one possible implementation, the front template 300 is provided with a plurality of limiting bolts 306, which are located in the moving direction of the second core 800. It is readily understood that the limiting bolts 306 are located at the opening of the guide groove 308, and the second core 800 is provided with limiting grooves 807 corresponding to the limiting bolts 306. When the mold opens, as the second core 800 continues to slide outward under inertia, the limiting bolts 306 enter the limiting grooves 807, causing the second core 800 to stop moving.

[0053] Please refer to Figure 4 In one possible implementation, the front template 300 is provided with a plurality of elastic positioning elements 307, and the second core 800 is provided with a first positioning groove 8051 corresponding to the elastic positioning elements 307. It should be noted that the multiple first positioning grooves 8051 are respectively located at the movable limit positions of the second core 800. That is, when the second core 800 is in the closed state, the elastic positioning member 307 extends into the first positioning groove 8051. When the second core 800 is in the fully opened position, the elastic positioning member 307 extends into another first positioning groove 8051. During the sliding process of the second core 800, the elastic positioning member 307 is in a contracted state and abuts against the bottom surface of the second core 800. In addition, in this embodiment, the elastic positioning member 307 is composed of a spring and a positioning block. The positioning block can extend and retract under the support of the spring. When the positioning block corresponds to the position of the first positioning groove 8051, the positioning block automatically extends into the first positioning groove 8051 under the action of the spring to achieve the purpose of positioning the second core 800.

[0054] Please refer to Figure 4 and Figure 9Furthermore, the second core 800 is provided with a push rod 803, which is slidably disposed relative to the second core 800. The inclined guide 801 is provided with a second clearance groove 8011, which smoothly transitions to the outer surface of the inclined guide 801. One end of the push rod 803 extends into the second inclined guide hole 802 and is simultaneously located within the second clearance groove 8011. The other end of the push rod 803 extends into the injection cavity of the base. A second elastic element 804 is sleeved on the push rod 803. One end of the second elastic element 804 is connected to the ejector pin 803, and the other end of the second elastic element 804 is connected to the second core 800. When the molded product needs to be demolded, the front mold fixing plate 100 is driven by the external driving element to separate from the front mold plate 300. The front mold fixing plate 100 drives the inclined guide 801 to move together. As the inclined guide 801 rises, it drives the second core 800 away from the molded product. Furthermore, when the inclined guide 801 begins to rise, it causes the ejector pin 803 to slowly retract from the second clearance groove 8011. This causes the back surface of the inclined guide 801 to contact the push rod 803, preventing the push rod 803 from moving with the second core 800. In other words, when the second core 800 begins to move, the push rod 803 does not move with it, but instead contacts the molded product under the action of the inclined guide 801, facilitating easier separation of the second core 800 from the molded product. After the second core 800 separates from the molded product, it continues to move. At this point, the push rod 803... 03. As the second core 800 moves together, the side core pulling mechanism is completely separated from the molded product. The second elastic element 804 allows the ejector rod 803 to automatically reset. Specifically, when the mold is closed again, one end of the ejector rod 803 needs to re-enter the relief groove. Without the support of the inclined guide 801, the elastic force of the second elastic element 804 will reset the ejector rod 803. In this embodiment, both the first elastic element 903 and the second elastic element 804 are springs.

[0055] Please refer to Figure 10Furthermore, the second core 800 includes an outer slider 805 and an inner slider 806. A second oblique guide hole 802 is provided on the outer slider 805, and the inner slider 806 extends into the injection cavity of the base. The outer slider 805 and the inner slider 806 are fixed together by fastening bolts. A positioning protrusion 8052 is provided on the inner side wall of the outer slider 805, and a second positioning groove 8061 that mates with the positioning protrusion 8052 is provided on the outer side wall of the inner slider 806. The positioning protrusion 8052 and the second positioning groove 8061 can quickly position the outer slider 805 and the inner slider 806 during installation, thereby improving installation efficiency and accuracy, and can also make the connection between the outer slider 805 and the inner slider 806 tighter. The side of the inner slider 806 near the base die 301 has a forming surface, which is used to form various complex structures on the side wall of the product. Therefore, the interior of the inner slider 806 is provided with various parts for forming complex structures. When these parts need maintenance or replacement, the outer slider 805 and the inner slider 806 can be connected together. The inner slider 806 is disassembled to facilitate maintenance and replacement of parts by staff; the push rod 803 includes an outer rod 8031 ​​and an inner rod 8032. The outer rod 8031 ​​is located inside the outer slider 805, and the inner rod 8032 is located inside the inner slider 806. One end of the outer rod 8031 ​​extends into the second inclined guide hole 802, and one end of the inner rod 8032 extends into the injection cavity of the base. The end of the outer rod 8031 ​​abuts against the end of the inner rod 8032, thus dividing the push rod 803 into the outer rod 8031 ​​and the inner rod 8032. 32 facilitates the installation of the push rod 803. Furthermore, the end of the outer rod 8031 ​​that extends into the second inclined guide hole 802 is rounded to reduce the friction between the outer rod 8031 ​​and the inclined guide 801. The end of the inner rod 8032 that abuts against the outer rod 8031 ​​is provided with a rod cap. The second elastic member 804 is sleeved on the inner rod 8032. One end of the second elastic member 804 abuts against the rod cap, and the other end abuts against the inner slider 806. In addition, there are three push rods 803, which are spaced apart in the second core 800.

[0056] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A sliding demolding base mold, characterized in that, Includes front mold assembly, rear mold assembly, and sliding demolding mechanism; The front mold assembly includes a front template, which has a cavity and a base mold. The cavity is located above the base mold, and the base mold has a first oblique guide hole. The rear mold assembly includes a rear template, on which a base punch is provided, and the base punch and the base die form a base injection cavity; The sliding demolding mechanism includes a first sliding member and a first core. The first sliding member is disposed in the cavity and is slidably disposed along the height direction of the cavity. The first core is connected to the first sliding member and is slidably disposed along the width direction of the first sliding member. The first core passes through the first oblique guide hole and extends into the injection cavity of the base. The first sliding member has a sliding groove, and the top of the first core has a second sliding member, which is slidably disposed in the sliding groove. The first sliding member includes an upper sliding block and a lower sliding block that are fixedly connected. The sliding groove is provided at the upper end of the lower sliding block, the upper sliding block covers the sliding groove, and the lower end of the lower sliding block is provided with a through hole that communicates with the sliding groove. The first sliding member is provided with a first guide post, and the front template is provided with a first guide hole, with the first guide post passing through the first guide hole; The lower end of the first core is provided with a shaping part, which is used to form the desired shape on the product.

2. The slidable demolding base mold as described in claim 1, characterized in that, The front template is provided with a cover plate, which is used to close the opening of the cavity.

3. The slidable demolding base mold as described in claim 1, characterized in that, It also includes a side core-pulling mechanism, which includes a second core and an oblique guide. One end of the second core extends into the injection cavity of the base, and the other end of the second core is provided with a second oblique guide hole. The oblique guide passes through the second oblique guide hole. The front mold assembly further includes a front mold fixing plate, the front template is disposed on the front mold fixing plate, the second core is slidably disposed on the front template, the inclined guide is fixedly disposed on the front mold fixing plate, and the front template is provided with a through hole for the inclined guide to pass through.

4. The slidable demolding base mold as described in claim 3, characterized in that, The rear template is provided with a first clearance groove, which is connected to the second oblique guide hole, and one end of the oblique guide extends into the first clearance groove.

5. The slidable demolding base mold as described in claim 3, characterized in that, The front template is provided with multiple limiting bolts, which are located in the moving direction of the second core.

6. The slidable demolding base mold as described in claim 3, characterized in that, The front template is provided with a plurality of elastic positioning elements, and the second core is provided with a first positioning groove corresponding to the elastic positioning elements.

Images