Die for producing automobile filter element

Abstract

The utility model relates to the field of automobile oil filter accessory production molds, in particular to a mold for producing an automobile filter element, the mold comprises a fixed mold assembly and a movable mold assembly, the fixed mold assembly comprises a fixed mold base, an inner mold and a side outer mold, the inner mold is connected with the fixed mold base, the side outer mold is arranged around the inner mold, and a first cavity is defined by the inner wall of the side outer mold and the outer wall of the inner mold; the movable mold assembly comprises a movable mold base and a top outer mold, the movable mold base is detachably connected with the fixed mold base, the top outer mold is connected with the fixed mold base, a second cavity is defined by the inner wall of the top outer mold and the outer wall of the inner mold, and the second cavity communicates with the first cavity; the movable mold base is provided with an injection molding opening, a main runner and a plurality of branch runners, the two ends of the main runner communicate with the injection molding opening and the branch runners correspondingly, and the branch runners communicate with the second cavity. The risk of defects in injection molding of the automobile filter element can be reduced, and the quality of the filter element product is improved.

Description

Technical Field

[0001] The present application relates to the field of automobile oil filter accessory production molds, and in particular to a mold for producing automobile filter elements. Background Art

[0002] The automobile filter element is an important component in the automobile engine lubrication system. Its main function is to filter impurities in the engine oil, ensure the cleanliness of the engine oil, and thus protect the normal operation of the engine.

[0003] In order to reduce the weight of the filter element, the automobile filter element is often produced by injection molding. Figure 1 The schematic diagram of an automotive filter element 200 is shown. It includes a housing 201, a top filter screen 202, and side filters 203. Before injection molding begins, the top filter screen 202 and the side filter screens 203 are placed in the mold cavity. Molten plastic is then injected into the mold cavity, allowing the plastic to combine with the filter screens to form the filter element 200. However, the presence of the filter screens increases the flow resistance of the plastic liquid, affecting the flow uniformity of the plastic liquid within the mold cavity. This, in turn, makes the filter element susceptible to defects, affecting product quality. Utility Model Content

[0004] In order to reduce the risk of defects in the injection molding of automobile filter elements and improve the quality of filter element products, the utility model provides a mold for producing automobile filter elements.

[0005] This application provides a mold for producing automobile filter elements, which adopts the following technical solutions:

[0006] A mold for producing automobile filter elements, comprising a fixed mold assembly and a movable mold assembly, the fixed mold assembly comprising a fixed mold base, an inner mold and a side outer mold, the inner mold being connected to the fixed mold base, the side outer mold being arranged around the inner mold, the inner wall of the side outer mold and the outer wall of the inner mold forming a first cavity; the movable mold assembly comprising a movable mold base and a top outer mold, the movable mold base being detachably connected to the fixed mold base, the top outer mold being connected to the fixed mold base, the inner wall of the top outer mold and the outer wall of the inner mold forming a second cavity, the second cavity being connected to the first cavity; the movable mold base having an injection port, a main channel and multiple branch channels, the two ends of the main channel being respectively connected to the injection port and the branch channel, and the multiple branch channels are all connected to the second cavity.

[0007] Optionally, the plurality of branch channels are evenly arranged along the circumference of the automobile filter element.

[0008] Optionally, the automobile filter element includes a side filter arranged in the first cavity and a top filter arranged in the second cavity; a heating device is provided inside the inner mold, and the heating device is arranged close to the side filter and / or the top filter.

[0009] Optionally, the heating device is a heating tube for accommodating a heating medium.

[0010] Optionally, the mold for producing automobile filter elements further includes a positioning assembly, which includes a positioning rod and a positioning sleeve, the positioning rod is connected to the movable mold base, the positioning sleeve is connected to the fixed mold base, and the positioning sleeve is slidably mounted on the positioning rod.

[0011] Optionally, the side outer mold includes a first half mold and a second half mold, and the first half mold and the second half mold are both slidably connected to the fixed mold base; the fixed mold assembly also includes a first telescopic member and a second telescopic member, the first telescopic member is used to drive the first half mold to slide, and the second telescopic member is used to drive the second half mold to slide.

[0012] Optionally, one of the first half mold and the second half mold is connected to a plug-in block, and the other has a plug-in slot for plugging the plug-in block.

[0013] Optionally, the movable mold base has a limiting cavity arranged toward the fixed mold base, and when the first half mold and the second half mold are in contact, the limiting cavity can be sleeved on the first half mold and the second half mold.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] By setting up multiple branch channels, during the injection molding process, the molten plastic liquid enters the mold cavity through multiple branch channels at the same time, which can increase the uniformity of the distribution of the plastic liquid in the mold cavity, so that the plastic liquid can evenly fill the entire mold cavity, thereby reducing the risk of defects during the injection molding of the automotive filter element and improving the quality of the filter element product;

[0016] By setting up a heating device, the side filter and the top filter can be heated during the injection molding process, so that the molten liquid near the side filter and the top filter can maintain good fluidity, further improving the uniformity of liquid flow and reducing the risk of defects in the filter element product.

[0017] By dividing the side outer mold into a first half mold and a second half mold and controlling the first half mold and the second half mold to move away from each other, the side outer mold can be demoulded. The demoulding process is relatively simple and the risk of damage to the filter element product during the demoulding process can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the automobile filter element according to an embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the overall structure of the mold for producing automobile filter elements in an embodiment of the present application.

[0020] Figure 3It is a schematic structural diagram of a cutaway movable mold base according to an embodiment of the present application.

[0021] Figure 4 It is a cross-sectional view of a mold for producing an automobile filter element according to an embodiment of the present application.

[0022] Figure 5 It is an exploded schematic diagram of the movable mold assembly and the fixed mold assembly of an embodiment of the present application.

[0023] Figure 6 This is a schematic diagram of the structure in which the first half mold and the second half mold are relatively far apart in an embodiment of the present application.

[0024] Reference numerals:

[0025] 1. Fixed mold assembly; 11. Fixed mold base; 12. Inner mold; 13. Side outer mold; 131. First cavity; 132. First half mold; 133. Second half mold; 1331. Connecting slot; 134. Connecting block; 14. First telescopic member; 15. Second telescopic member;

[0026] 2. Moving mold assembly; 21. Moving mold base; 211. Injection port; 212. Main runner; 213. Branch runner; 214. Limiting cavity; 22. Top outer mold; 221. Second cavity;

[0027] 3. Heating tube;

[0028] 4. Positioning assembly; 41. Positioning rod; 42. Positioning sleeve;

[0029] 5. Mould foot;

[0030] 200, filter element; 201, housing; 202, top filter; 203, side filter. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-6 This application is described in further detail.

[0032] Reference Figure 1 The automobile filter element 200 includes a shell 201, a top filter 202 and a side filter 203. The shell 201 is cylindrical, the top filter 202 is sealed on one end face of the shell 201, and the side filter 203 is arranged on the side of the shell 201 and away from the top filter 202. The side filter 203 is coaxial with the shell 201.

[0033] The present application embodiment discloses a mold for producing automobile filter element. Figure 2 and Figure 3The mold for producing automobile filter elements includes a fixed mold assembly 1 and a movable mold assembly 2. The fixed mold assembly 1 includes a fixed mold base 11, an inner mold 12 and a side outer mold 13. The inner mold 12 and the side outer mold 13 are both arranged on the fixed mold base 11. The side outer mold 13 is arranged around the inner mold 12. The side outer mold 13 and the inner mold 12 enclose a first cavity 131. The inner mold 12 is used to form the inner cavity of the automobile filter element 200, and the side outer mold 13 is used to form the outer side wall of the automobile filter element 200; the movable mold assembly 2 includes a movable mold base 21 and a top outer mold 22. The movable mold base 21 and the fixed mold base 11 is detachably connected, the top outer mold 22 is connected to the movable mold base 21, the inner wall of the top outer mold 22 and the outer wall of the inner mold 12 form a second cavity 221 connected to the first cavity 131, and the second cavity 221 and the first cavity 131 constitute a mold cavity for injection molding the automobile filter element 200; wherein, the movable mold base 21 has an injection port 211, a main channel 212 and a plurality of branch channels 213, the injection port 211, the main channel 212 and the branch channels 213 are connected in sequence, and the plurality of branch channels 213 are all connected to the second cavity 221.

[0034] The mold for producing automobile filter elements in this embodiment is provided with multiple branch channels 213. During the injection molding process, the molten plastic liquid enters the mold cavity through the multiple branch channels 213 at the same time, which can increase the uniformity of the distribution of the plastic liquid in the mold cavity, so that the plastic liquid can evenly fill the entire mold cavity, thereby reducing the risk of defects during the injection molding of the automobile filter element 200 and improving the product quality of the filter element 200.

[0035] Reference Figure 2 and Figure 3 The outer contour of the mold is rectangular, the movable mold base 21 is arranged on the upper side of the fixed mold base 11, the contour of the inner mold 12 is cylindrical and extends up and down, the inner wall of the side outer mold 13 is arranged around the inner mold 12, and there is a gap with the side wall of the inner mold 12 to form the above-mentioned first cavity 131, and the side filter 203 is installed in the first cavity 131; the top outer mold 22 is arranged on the upper side of the inner mold 12, and there is a gap with the top wall of the inner mold 12 to form the above-mentioned second cavity 221, and the top filter 202 is installed in the second cavity 221; thus, the axial direction of the cooled and formed automobile filter element 200 extends up and down, and the top filter 202 is located on the upper side of the side filter 203.

[0036] Those skilled in the art will appreciate that the side filter 203 and the top filter 202 need to be installed in the mold before injection molding begins; specifically, the side filter 203 is mounted on the inner mold 12, and the side walls of the inner mold 12 are provided with positioning steps to achieve positioning of the side filter 203; the top filter 202 is placed on the top of the inner mold 12, and the center of the top filter 202 has a through hole, which is coaxially installed with the inner mold 12; a positioning protrusion is connected to the top outer mold 22, and when the top outer mold 22 and the inner mold 12 form a second cavity 221, the positioning protrusion is inserted into the through hole of the filter to achieve positioning of the top filter 202, so that the top filter 202 and the side filter 203 can remain stable during the injection molding process.

[0037] Reference Figure 3 The injection port 211 is provided on the upper side of the movable mold base 21, the main channel 212 is provided between the injection port 211 and the branch channel 213, and the branch channel 213 is provided on the upper side of the second cavity 221; the number of the branch channels 213 is multiple, and this embodiment takes three as an example, and the three branch channels 213 are evenly arranged along the circumference of the automobile filter element 200; the molten plastic liquid is injected from the injection port 211, and the liquid flows into the three branch channels 213 through the main channel, and then enters the second cavity 221 at the same time through the three branch channels 213, and quickly and evenly fills the entire mold cavity, thereby reducing the risk of defects during injection molding of the automobile filter element 200 and improving the product quality of the filter element 200.

[0038] Reference Figure 3 A heating device is embedded in the interior of the inner mold 12, and the heating device is a heating tube 3, into which a heating medium, such as hot water or steam, is passed; there are two groups of heating tubes 3, and the two groups of heating tubes 3 are arranged close to the top filter 202 and the side filter 203 respectively; the heating tube 3 arranged close to the top filter 202 is arranged in a vortex shape with the axis of the filter element 200 as the center, and the heating tube 3 close to the side filter 203 is arranged in a spiral shape with the axis of the automobile filter element 200 as the center; thereby, the heat of the heating tube 3 can be transferred to the side filter 203 and the top filter 202 to the greatest extent, so that the molten liquid near the side filter 203 and the top filter 202 can maintain good fluidity, thereby filling the mold cavity more evenly, so as to reduce the risk of defects in the filter element 200 product.

[0039] After the molten plastic liquid is injected into the mold cavity, the heating medium in the heating tube 3 needs to be discharged after being maintained for a preset time. Subsequently, the cooling medium can be injected into the heating tube 3 to accelerate the cooling of the filter element 200 product.

[0040] Of course, in other embodiments, the heating device may also be an electric heating wire.

[0041] Reference Figure 5The mold for producing automobile filter elements also includes a positioning component 4, which includes a positioning rod 41 and a positioning sleeve 42. The positioning sleeve 42 is fixedly connected to the fixed mold base 11, the positioning rod 41 is fixedly connected to the movable mold base 21, and the positioning sleeve 42 is slidably inserted into the positioning rod 41; the number of positioning components 4 is four groups, and the four groups of positioning components 4 are respectively arranged at the four corners of the mold, thereby realizing the positioning of the fixed mold base 11.

[0042] In addition, a mold foot 5 is provided on one side of the movable mold base 21 and the fixed mold base 11. The mold foot 5 is used to prevent the mold from deflecting or shaking during the injection molding process, thereby improving the stability of the mold during the injection molding process.

[0043] Reference Figure 5 and Figure 6 The side outer mold 13 includes a first half mold 132 and a second half mold 133. The first half mold 132 and the second half mold 133 are relatively arranged on both sides of the inner mold 12. The first half mold 132 and the second half mold 133 are both slidably connected to the fixed mold base 11. When the first half mold 132 and the second half mold 133 are relatively close, the two fit together to form a complete side outer mold 13; the first half mold 132 and the second half mold 133 are relatively far away from each other, which can make the first half mold 132 and the second half mold 133 separate from the filter element 200, thereby realizing the demoulding of the side outer mold 13. The demoulding is relatively simple, which can reduce the risk of damage to the filter element 200 product during the demoulding process.

[0044] The fixed mold assembly 1 also includes a first telescopic part 14 and a second telescopic part 15. The first telescopic part 14 and the second telescopic part 15 are both oil cylinders. The cylinder body of the first telescopic part 14 is connected to the base body, and the piston rod of the first telescopic part 14 is connected to the first half mold 132. The sliding of the first half mold 132 can be controlled by the first telescopic part 14; the cylinder body of the second telescopic part 15 is connected to the base body, and the piston rod of the second telescopic part 15 is connected to the second half mold 133. The sliding of the second half mold 133 can be controlled by the second telescopic part 15.

[0045] Reference Figure 6 The first half mold 132 is fixedly connected to the side wall of the second half mold 133 with a plug-in block 134, and the second half mold 133 is provided with a plug-in groove 1331 on the side wall of the first half mold 132. When the first half mold 132 and the second half mold 133 are fitted together, the plug-in block 134 is plugged into the plug-in groove 1331, thereby fixing the relative positions of the first half mold 132 and the second half mold 133.

[0046] Reference Figure 3 and Figure 4When the first half mold 132 and the second half mold 133 are fitted together, their outer contours are in the shape of a regular quadrangular pyramid. The movable mold base 21 has a limiting cavity 214. The shape of the limiting cavity 214 matches the outer contour of the first half mold 132 and the second half mold 133 after fitting together, that is, the cross-section of the limiting cavity 214 along the vertical direction is an isosceles trapezoid. Therefore, when the top outer mold 22 is matched with the inner mold 12, the movable mold base 21 is sleeved on the first half mold 132 and the second half mold 133 through the limiting cavity 214, thereby realizing the positioning of the first half mold 132, the second half mold 133 and the top outer mold 22.

[0047] The implementation principle of the mold for producing automobile filter elements in the embodiment of the present application is as follows: before the injection molding begins, the side filter screen 203 and the top filter screen 202 are first installed to the preset positions in the mold cavity, and then the first half mold 132 and the second half mold 133 are controlled to be relatively close by the first telescopic member 14 and the second telescopic member 15, and the movable mold base 21 is controlled to drive the top outer mold 22 to descend to achieve mold closing; thereafter, the molten plastic liquid is injected through the injection port 211, and the plastic liquid enters the mold cavity through the three branch channels 213, which can improve the uniformity of the distribution of the plastic liquid in the mold cavity; at the same time, the heating device can heat the side filter screen 203 and the top filter screen 202, so that the liquid near the side filter screen 203 and the top filter screen 202 maintains good fluidity, improves the flow uniformity of the plastic liquid, thereby reducing the risk of defects in the automobile filter element 200 and improving product quality.

[0048] After the automobile filter element 200 is cooled and formed, the movable mold base 21 (including the top outer mold 22) is first controlled to rise upward, and then the first half mold 132 and the second half mold 133 are controlled to move relatively apart by the first telescopic member 14 and the second telescopic member 15. Finally, the automobile filter element 200 is taken out upward to complete the demolding process of the filter element 200.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mold for producing automobile filter elements, characterized by: include: A fixed mold assembly (1), the fixed mold assembly (1) comprising a fixed mold base (11), an inner mold (12) and a side outer mold (13), the inner mold (12) being connected to the fixed mold base (11), the side outer mold (13) being arranged around the inner mold (12), and the inner wall of the side outer mold (13) and the outer wall of the inner mold (12) forming a first cavity (131); A movable mold assembly (2), the movable mold assembly (2) comprising a movable mold base (21) and a top outer mold (22), the movable mold base (21) being detachably connected to the fixed mold base (11), the top outer mold (22) being connected to the fixed mold base (11), the inner wall of the top outer mold (22) and the outer wall of the inner mold (12) forming a second cavity (221), the second cavity (221) being in communication with the first cavity (131); The movable mold base (21) has an injection port (211), a main channel (212) and a plurality of branch channels (213), the two ends of the main channel (212) are respectively connected to the injection port (211) and the branch channels (213), and the plurality of branch channels (213) are all connected to the second cavity (221).

2. The mold for producing an automobile filter element according to claim 1, characterized in that: The plurality of branch flow channels (213) are evenly arranged along the circumference of the automobile filter element (200).

3. The mold for producing an automobile filter element according to claim 1, characterized in that: The automobile filter element (200) comprises a side filter (203) and a top filter (202); a heating device is provided inside the inner mold (12), and the heating device is arranged close to the side filter (203) and / or the top filter (202).

4. The mold for producing an automobile filter element according to claim 3, characterized in that: The heating device is a heating tube (3) for accommodating a heating medium.

5. The mold for producing an automobile filter element according to any one of claims 1 to 4, characterized in that: The mold assembly (4) further comprises a positioning assembly (4), wherein the positioning assembly (4) comprises a positioning rod (41) and a positioning sleeve (42), wherein the positioning rod (41) is connected to the movable mold base (21), and the positioning sleeve (42) is connected to the fixed mold base (11), and the positioning sleeve (42) is slidably sleeved on the positioning rod (41).

6. The mold for producing an automobile filter element according to any one of claims 1 to 4, characterized in that: The side outer mold (13) comprises a first half mold (132) and a second half mold (133), and the first half mold (132) and the second half mold (133) are both slidably connected to the fixed mold base (11); The fixed mold assembly (1) further comprises a first telescopic member (14) and a second telescopic member (15), wherein the first telescopic member (14) is used to drive the first half mold (132) to slide, and the second telescopic member (15) is used to drive the second half mold (133) to slide.

7. The mold for producing an automobile filter element according to claim 6, characterized in that: One of the first half mold (132) and the second half mold (133) is connected to a plug-in block (134), and the other has a plug-in slot (1331) for plugging the plug-in block (134).

8. The mold for producing an automobile filter element according to claim 6, characterized in that: The movable mold base (21) has a limiting cavity (214) arranged toward the fixed mold base (11); when the first half mold (132) and the second half mold (133) are in contact with each other, the limiting cavity (214) can be sleeved on the first half mold (132) and the second half mold (133).

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