Die

Abstract

The embodiment of the utility model relates to the technical field of molds, and discloses a mold which comprises an upper mold body, a lower mold body, an ejection mechanism and a side pulling mechanism, at least one of the upper mold body and the lower mold body can move in the vertical direction, and a cavity is formed between the upper mold body and the lower mold body; the ejection mechanism is arranged on the side wall of the lower die and can at least partially move in the vertical direction; the side pulling mechanism is connected with the ejection mechanism, the ejection mechanism drives the side pulling mechanism to move in the vertical direction, at least part of the side pulling mechanism extends into the cavity, and at least part of the upper surface of the side pulling mechanism is configured to abut against the lower surface of the upper mold when the upper mold is matched with the lower mold. According to the mold, no ejection trace exists on the lower surface of a product produced by the mold, the situation that the ejection trace influences the strength of the product is avoided, and the product is attractive.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of mold technology, and in particular to a mold. Background Art

[0002] In the existing technology, traditional mold structures require a corresponding ejection mechanism during the mold opening process. The product is ejected by the ejection mechanism (ejector pin / ejector block / elevator) and then removed manually or by a robot. Ejection marks are left on the product and the strength of the product is affected. Utility Model Content

[0003] In view of this, an embodiment of the present application provides a mold, wherein the lower surface of the product produced by the mold has no ejection marks, thereby avoiding the ejection marks affecting the strength of the product, and the product is more beautiful.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application provides a mold, which includes an upper mold, a lower mold, an ejection mechanism and a side withdrawal mechanism. At least one of the upper mold and the lower mold is movable in the up and down directions, and a cavity is provided between the upper mold and the lower mold; the ejection mechanism is provided on the side wall of the lower mold and is at least partially movable in the up and down directions; the side withdrawal mechanism is connected to the ejection mechanism, and the ejection mechanism drives the side withdrawal mechanism to move in the up and down directions, at least part of the side withdrawal mechanism extends into the cavity, and at least part of the upper surface of the side withdrawal mechanism is configured to stop against the lower surface of the upper mold when the upper mold and the lower mold are matched.

[0006] In the mold provided in the embodiment of the present application, the ejection mechanism is arranged on the side wall of the lower mold and is at least partially movable in the up and down direction. The side withdrawal mechanism is connected to the ejection mechanism, and the ejection mechanism drives the side withdrawal mechanism to move in the up and down direction. At least a portion of the side withdrawal mechanism extends into the mold cavity. After the injection molding of the product is completed, the mold is separated, and the ejection mechanism drives the side withdrawal mechanism to move upward. The product molded in the mold cavity moves upward as a whole with the side withdrawal mechanism, and the product as a whole is separated from the lower mold. There are no ejection marks on the lower surface of the product, which avoids the ejection marks affecting the strength of the product, and the product is more beautiful.

[0007] In a possible implementation of the present application, the ejection mechanism includes an ejection cylinder and a first push rod, the ejection cylinder is fixedly connected to the side wall of the lower mold; at least a portion of the first push rod is movably arranged in the ejection cylinder along the up and down directions, and the upper end of the first push rod is fixedly connected to the side withdrawal mechanism.

[0008] In a possible implementation of the present application, the side pumping mechanism includes a base, a slider and a side pumping cylinder, the base is fixedly connected to the first push rod; the slider is movably arranged on the base along a first direction, and the first direction is perpendicular to the up and down direction; along the first direction, the side pumping cylinder is arranged on the side of the slider away from the lower mold, and the side pumping cylinder is fixedly connected to the base.

[0009] In a possible implementation of the present application, the side pumping mechanism further includes a second push rod, which is movably disposed in the side pumping cylinder along the first direction, and the second push rod is fixedly connected to the slider.

[0010] In a possible implementation of the present application, the second push rod and the slider are an integral part.

[0011] In a possible implementation of the present application, the mold cavity includes a pouring runner, and along the first direction, the end of the sliding block away from the side pumping cylinder abuts against the pouring runner.

[0012] In a possible implementation of the present application, the base includes a first base and a second base, and the first base is fixedly connected to the first push rod; along the first direction, the second base, the first base and the side pumping cylinder are arranged in sequence and fixedly connected, and at least a portion of the slider is passed through the second base.

[0013] In a possible implementation of the present application, the first push rod is connected to the first base via a fastener; and / or the first base is connected to the second base via a fastener.

[0014] In a possible implementation of the present application, the sliding block includes a first mating surface, which is inclined toward the side pumping cylinder from top to bottom and abuts against the upper mold.

[0015] In a possible implementation of the present application, the mold further includes a locking block, which connects the ejection mechanism and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a mold provided in an embodiment of the present application;

[0017] Figure 2 A three-dimensional diagram of the side extraction mechanism, ejection mechanism, product, and gate of the mold provided in an embodiment of the present application;

[0018] Figure 3 A three-dimensional diagram of a mold provided in an embodiment of the present application;

[0019] Figure 4 A schematic diagram of the first step of opening the mold provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of the second step of opening the mold provided in an embodiment of the present application;

[0021] Figure 6 A schematic diagram of the third step of opening the mold provided in an embodiment of the present application;

[0022] Figure 7 A schematic diagram of the fourth step of opening the mold according to an embodiment of the present application;

[0023] Figure 8 A schematic diagram of action five of opening the mold provided in an embodiment of the present application;

[0024] Figure 9 An exploded view of the ejection mechanism and side extraction mechanism of the mold provided in an embodiment of the present application;

[0025] Figure 10 An exploded view of the side draw mechanism of the mold provided in an embodiment of the present application;

[0026] Figure 11 Schematic diagram of the ejection mechanism and side extraction mechanism of the mold provided in the embodiment of the present application;

[0027] Figure 12 A schematic diagram of removing the base of the side extraction mechanism of the mold provided in an embodiment of the present application;

[0028] Figure 13 Schematic diagram of the slider, product and gate of the mold provided in the embodiment of the present application;

[0029] Figure 14 Explosion of the slider, product and gate of the mold provided in the embodiment of the present application.

[0030] Reference numerals:

[0031] 100. Mould;

[0032] 1. Upper die; 11. Inclined guide pin;

[0033] 2. Lower die; 21. Cavity; 22. Side pull-out slider;

[0034] 3. Ejector mechanism; 31. Ejector cylinder; 32. First push rod;

[0035] 4. Side-draw mechanism; 41. Base; 411. First base; 412. Second base; 42. Slider; 421. First mating surface; 43. Side-draw cylinder; 44. Second push rod;

[0036] 5. Locking block;

[0037] 200. Product; 201. Gate. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0039] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of this application, unless otherwise specified, "plurality" means two or more.

[0040] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0041] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0042] In the embodiments of the present application, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0043] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being more preferred or advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0044] The present application provides a mold. It should be noted that the mold herein can refer to a compression mold, a stamping mold, a die-casting mold, and the like. For example, based on the molding material, the mold herein can be a metal mold, such as a stamping mold, a plastic mold, such as a compression mold or an injection mold, or a special mold, such as a die-casting mold. Furthermore, the mold requires auxiliary components, such as a mold base, a mold frame, a mold core, and a part ejection device. These components are generally manufactured to be universal.

[0045] It should be noted that in the embodiments of this application, the mold material is not further limited. Exemplary mold materials include steel (such as cold work die steel, hot work die steel, plastic mold steel, etc.), aluminum alloy, and cast iron. These materials have advantages such as high hardness, good heat resistance, and high strength, and can meet the processing requirements of different molds.

[0046] The mold 100 provided in the embodiment of the present application is specifically used for injection molding.

[0047] For example, some molds are injection molds made of steel. Injection molds can rapidly mass-produce products with identical properties in a short period of time, significantly improving production efficiency. Furthermore, injection mold design and manufacturing are highly flexible and can be customized to meet diverse product requirements.

[0048] On this basis, refer to Figure 1 and Figure 3 An embodiment of the present application provides a mold 100, including an upper mold 1, a lower mold 2, an ejection mechanism 3 and a side extraction mechanism 4.

[0049] In order to better illustrate the mold 100 provided in the embodiment of the present application, refer to Figure 1 、 Figure 2 and Figure 3 , at least one of the upper mold 1 and the lower mold 2 is along the up-down direction (such as Figure 1 The upper mold 1 and the lower mold 2 are movable in the upper and lower directions as shown, and a cavity 21 is provided between the upper mold 1 and the lower mold 2. It can be understood that when the upper mold 1 and the lower mold 2 cooperate, a cavity 21 is formed between the upper mold 1 and the lower mold 2 for molding the product 200. After the injection molding of the product 200 is completed, at least one of the upper mold 1 and the lower mold 2 is moved in the upper and lower directions, the mold 100 is separated, and the product 200 can be taken out of the cavity 21 to complete the production of the product 200.

[0050] Reference Figure 1 and Figure 3The ejection mechanism 3 is provided on the side wall of the lower mold 2 and is at least partially movable in the up-down direction. The side withdrawal mechanism 4 is connected to the ejection mechanism 3. The ejection mechanism 3 drives the side withdrawal mechanism 4 to move in the up-down direction, and at least a portion of the side withdrawal mechanism 4 extends into the cavity 21. It can be understood that when the upper mold 1 and the lower mold 2 are matched, at least a portion of the upper surface of the side withdrawal mechanism 4 abuts against the lower surface of the upper mold 1. After the injection molding of the product 200 is completed, at least one of the upper mold 1 and the lower mold 2 moves in the up-down direction, the mold 100 is separated, at least a portion of the ejection mechanism 3 moves upward, driving the side withdrawal mechanism 4 to move upward, and the product 200 formed in the cavity 21 moves upward as a whole with the side withdrawal mechanism 4. The product 200 is separated from the lower mold 2 as a whole. There are no ejection marks on the product 200 itself, which avoids the ejection marks affecting the strength of the product 200, and the product 200 is more beautiful.

[0051] At least part of the upper surface of the side withdrawal mechanism 4 is constructed to stop against the lower surface of the upper mold 1 when the upper mold 1 and the lower mold 2 are matched. The upper mold 1 can limit the side withdrawal mechanism 4 when the upper mold 1 and the lower mold 2 are matched, ensuring the reliability of the position of the part of the side withdrawal mechanism 4 extending into the cavity 21, and avoiding affecting the accuracy of the product 200.

[0052] The mold 100 provided in the embodiment of the present application is referred to Figure 1 and Figure 3 The ejection mechanism 3 is provided on the side wall of the lower mold 2 and is at least partially movable in the up and down direction. The side withdrawal mechanism 4 is connected to the ejection mechanism 3. The ejection mechanism 3 drives the side withdrawal mechanism 4 to move in the up and down direction. At least part of the side withdrawal mechanism 4 extends into the cavity 21. After the injection molding of the product 200 is completed, the mold 100 is separated, and the ejection mechanism 3 drives the side withdrawal mechanism 4 to move upward. The product 200 formed in the cavity 21 moves upward as a whole with the side withdrawal mechanism 4, and the product 200 is separated from the lower mold 2 as a whole. There is no ejection mark on the lower surface of the product 200, which avoids the ejection mark affecting the strength of the product 200, and the product 200 is more beautiful.

[0053] In some embodiments of the present application, reference is made to Figure 1 and Figure 9 The ejection mechanism 3 includes an ejection cylinder 31 and a first push rod 32. The ejection cylinder 31 is fixedly connected to the side wall of the lower mold 2. At least a portion of the first push rod 32 is vertically movable within the ejection cylinder 31. The hydraulic pressure of the ejection cylinder 31 provides power for the vertical movement of the first push rod 32. The ejection cylinder 31 is relatively small, making it convenient for placement on the side wall of the lower mold 2. The upper end of the first push rod 32 is fixedly connected to the side withdrawal mechanism 4. The side withdrawal mechanism 4 moves with the movement of the first push rod 32, making it relatively simple and convenient to drive.

[0054] Further, refer to Figure 1 、 Figure 10 and Figure 11 The side pumping mechanism 4 includes a base 41, a slider 42 and a side pumping cylinder 43. The base 41 is fixedly connected to the first push rod 32. The first push rod 32 directly drives the base 41 to move in the up and down directions. The slider 42 moves in the first direction (such as Figure 1 The first direction shown in the figure is movably arranged on the base 41. The first direction is perpendicular to the up and down direction. The slider 42 can move the product 200 along the first direction and move the product 200 to the outside of the mold 100 to facilitate the removal of the product 200. Along the first direction, the side pumping cylinder 43 is arranged on the side of the slider 42 away from the lower mold 2. The side pumping cylinder 43 is fixedly connected to the base 41. The hydraulic pressure of the side pumping cylinder 43 can provide power for the movement of the slider 42 along the first direction. The side pumping cylinder 43 is small in size and is easy to arrange.

[0055] Further, refer to Figure 1 and Figure 12 The side pumping mechanism 4 also includes a second push rod 44, which is movably arranged in the side pumping cylinder 43 along the first direction. The second push rod 44 is fixedly connected to the slider 42, and the slider 42 can be displaced as the second push rod 44 moves. The driving of the slider 42 is relatively simple and convenient.

[0056] Further, refer to Figure 1 The second push rod 44 and the slider 42 are integrated into one piece, which can simplify the assembly process of the side drawer mechanism 4 and the assembly process of the mold 100.

[0057] In some embodiments of the present application, reference is made to Figure 1 and Figure 13 The mold cavity 21 includes a pouring runner. Along the first direction, one end of the slider 42 away from the side pumping cylinder 43 stops at the pouring runner. After the injection molding of the product 200 is completed, the slider 42 is connected to the gate 201 filled in the pouring runner. Figure 14 As shown, the gate 201 is used as waste after the product 200 is taken out. While ensuring that the slider 42 can move the product 200 along the first direction, it can also prevent the slider 42 from affecting the appearance and dimensional accuracy of the product 200, thereby increasing the yield of the product 200.

[0058] In some embodiments of the present application, reference is made to Figure 1 and Figure 9The base 41 includes a first base 411 and a second base 412. The first base 411 is fixedly connected to the first push rod 32. Along the first direction, the second base 412, the first base 411, and the side pumping cylinder 43 are sequentially arranged and fixedly connected. At least a portion of the slider 42 extends through the second base 412. After the injection molding of the product 200 is completed, at least one of the upper mold 1 and the lower mold 2 moves vertically, the mold 100 is separated, and at least a portion of the ejection mechanism 3 moves upward, driving the side pumping mechanism 4 to move upward. The product 200 molded in the cavity 21 moves upward along with the side pumping mechanism 4, separating the product 200 from the lower mold 2. This prevents any undercuts on the product 200 from adhering to the lower mold 2 and damaging the product 200. When the slider 42 is withdrawn outward along the first direction, the product 200 abuts against the side of the second base 412 away from the side pumping cylinder 43, causing the product 200 to fall off the slider 42, making it easier to remove the product 200.

[0059] In addition, a transition section is provided at one end of the slider 42 connected to the gate 201 , and the diameter of the transition section gradually decreases along the direction from the side pumping cylinder 43 to the second base 412 , making it easier for the slider 42 to fall off from the gate 201 .

[0060] Further, refer to Figure 1 The first push rod 32 is connected to the first base 411 through a fastener. The connection between the first push rod 32 and the first base 411 is relatively simple and convenient, and it is easy to disassemble the first push rod 32 and the first base 411.

[0061] Further, refer to Figure 1 、 Figure 9 and Figure 10 The first base 411 and the second base 412 are connected by fasteners. The connection between the first base 411 and the second base 412 is relatively simple and convenient, and it is easy to disassemble the first base 411 and the second base 412.

[0062] In some embodiments of the present application, reference is made to Figure 1 The slider 42 includes a first mating surface 421. From top to bottom, the first mating surface 421 is inclined toward the side pumping cylinder 43 and abuts against the upper mold 1. This prevents the first mating surface 421 from scratching the upper mold 1 when the upper mold 1 and lower mold 2 mate, and also provides guidance for the slider 42, ensuring a more secure position.

[0063] In some embodiments of the present application, reference is made to Figure 1The mold 100 further includes a locking block 5, which connects the ejection mechanism 3 and the lower mold 2. The locking block 5 can firmly fix the ejection mechanism 3 and the lower mold 2, thereby significantly enhancing the stability of the mold 100, preventing the ejection mechanism 3 and the lower mold 2 from loosening, falling off, or accidentally moving, thereby ensuring the safety and reliability of the mold 100 during operation.

[0064] Please refer to the following Figure 1 and attached Figure 4 -Attached Figure 8 The following describes the operation flow of the mold 100 according to a specific embodiment of the present application. It is worth noting that the following description is merely exemplary and is intended to be used to explain the present application, and should not be construed as a limitation on the present application.

[0065] Specifically, when the injection molding process of the mold 100 is completed, the product 200 remains in the mold cavity 21, and the state of the mold 100 is as follows: Figure 1 shown.

[0066] The mold 100 enters the mold opening state, as shown in FIG. Figure 5 As shown, the mold 100 enters action one, the lower mold 2 moves downward (for example, 82 mm) to open the mold, and the side pull-out slider 22 slides to the left (for example, 30 mm) under the action of the inclined guide column 11 of the upper mold 1. When the end of the side pull-out slider 22 away from the cavity 21 is limited, it stops sliding and the undercut area on the left side of the product 200 is pulled out.

[0067] like Figure 6 As shown, the mold 100 enters action 2, and the lower mold 2 continues to move downward. The mold opening distance can be determined according to actual production (for example, 162 mm), so that the robot or the employee's arm has a larger operating space, which facilitates the smooth removal of the product 200.

[0068] like Figure 7 As shown, the mold 100 enters action three, and the ejection cylinder 31 starts to move. Under the action of the ejection cylinder 31, the product 200, the gate 201 and the entire side withdrawal mechanism 4 are ejected upward (for example, 20 mm), and the product 200, the gate 201 and the entire side withdrawal mechanism 4 are separated from the lower mold 2 together;

[0069] like Figure 8 As shown, the mold 100 enters action four, the side pumping cylinder 43 starts to move, driving the slider 42 to move to the right (for example, 34.15 mm) until the product 200 contacts the second base 412.

[0070] like Figure 9As shown, the mold 100 enters action five. After the product 200 contacts the second base 412, the product 200 cannot move further, but the side pumping cylinder 43 continues to drive the slider 42 to move to the right. Under the reaction force of the second base 412, the product 200 slowly separates from the slider 42. The product 200 completes the entire ejection process. The gate 201 peels off from the product 200 and falls out of the slider 42. There is no trace of ejection on the product 200, ensuring the good appearance of the product 200.

[0071] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A mold, characterized in that: include: Upper mold(1); a lower mold (2), wherein at least one of the upper mold (1) and the lower mold (2) is movable in an up-down direction, and a mold cavity (21) is provided between the upper mold (1) and the lower mold (2); An ejection mechanism (3), the ejection mechanism (3) being arranged on the side wall of the lower mold (2) and at least partially movable in the up-down direction; A side withdrawal mechanism (4), wherein the side withdrawal mechanism (4) is connected to the ejection mechanism (3), and the ejection mechanism (3) drives the side withdrawal mechanism (4) to move in the up-down direction, at least a portion of the side withdrawal mechanism (4) extends into the mold cavity (21), and at least a portion of the upper surface of the side withdrawal mechanism (4) is configured to abut against the lower surface of the upper mold (1) when the upper mold (1) and the lower mold (2) are matched.

2. The mold according to claim 1, characterized in that The ejection mechanism (3) comprises: An ejection oil cylinder (31), wherein the ejection oil cylinder (31) is fixedly connected to the side wall of the lower mold (2); A first push rod (32), at least a portion of which is movably disposed in the ejection cylinder (31) in an up-down direction, and an upper end of the first push rod (32) is fixedly connected to the side extraction mechanism (4).

3. The mold according to claim 2, characterized in that The side-drawing mechanism (4) comprises: a base (41), wherein the base (41) is fixedly connected to the first push rod (32); a slider (42), the slider (42) being movably disposed on the base (41) along a first direction, the first direction being perpendicular to the up-down direction; A side pumping cylinder (43) is provided on a side of the slider (42) away from the lower die (2) along the first direction, and the side pumping cylinder (43) is fixedly connected to the base (41).

4. The mold according to claim 3, characterized in that The side-drawing mechanism (4) further comprises: A second push rod (44) is movably disposed in the side pumping cylinder (43) along the first direction, and the second push rod (44) is fixedly connected to the slider (42).

5. The mold according to claim 4, characterized in that The second push rod (44) and the slider (42) are an integral part.

6. The mold according to claim 3, characterized in that The mold cavity (21) includes a pouring flow channel, and along the first direction, the end of the slider (42) away from the side pumping cylinder (43) abuts against the pouring flow channel.

7. The mold according to claim 3, characterized in that The base (41) comprises: a first base (411), wherein the first base (411) is fixedly connected to the first push rod (32); A second base (412), along the first direction, the second base (412), the first base (411) and the side pumping cylinder (43) are arranged in sequence and fixedly connected, and at least a portion of the slider (42) is inserted into the second base (412).

8. The mold according to claim 7, characterized in that The first push rod (32) is connected to the first base (411) via a fastener; And / or, the first base (411) and the second base (412) are connected via fasteners.

9. The mold according to claim 3, characterized in that The sliding block (42) includes a first mating surface (421). From top to bottom, the first mating surface (421) is inclined toward the direction close to the side pumping cylinder (43) and abuts against the upper die (1).

10. The mold according to claim 1, characterized in that Also includes: A locking block (5), wherein the locking block (5) connects the ejection mechanism (3) and the lower mold (2).

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