Automobile filter processing die

Abstract

This invention relates to the field of automotive filter processing technology, specifically to an automotive filter processing mold, comprising two fixed plates and an upper mold base and a lower mold base distributed between and connected to the fixed plates. The fixed plate on the upper mold base is connected to an external hydraulic cylinder device to control the vertical displacement of the upper mold base and cooperate with the lower mold base to complete injection molding. The upper mold base has an injection channel on its right side connected to an external injection molding machine; an upper mold head is fixed to the lower end face of the upper mold base, and the injection channel extends to the lower end face of the upper mold head; the upper end face of the lower mold base has a mold cavity matching the upper mold head, and the mold cavity has a convex-shaped structure. This application, through the design of an ejection mechanism, can quickly realize the demolding of the automotive filter after injection molding. Compared with the traditional ejector-type demolding method, no additional drive structure is required; the demolding effect of the ejection mechanism of this application can be achieved solely by the closing and opening of the upper and lower mold bases.

Description

Technical Field

[0001] This invention relates to the field of automotive filter processing technology, and in particular to an automotive filter processing mold. Background Technology

[0002] Automotive air filters are auxiliary parts for engines. They can be classified according to different filtration functions, such as oil filters, fuel filters, air filters, and cabin air filters. They can also be used to filter media in the lubrication system, combustion system, engine intake system, and passenger compartment air circulation system.

[0003] In the existing technology, the upper housing of automotive air filters is generally processed by injection molding to achieve one-time molding. However, after injection molding, the finished product is not easy to demold from the injection mold cavity. The traditional ejector pin demolding structure is very easy to damage the product that has just cooled and solidified. Manual demolding is generally done by using tools to lift the edge of the injection mold. This method increases the labor intensity of workers and also increases the defect rate of products.

[0004] Therefore, a processing mold for automotive filters is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a processing mold for automotive filters. This application, through the design of an ejection mechanism, can quickly realize the demolding of automotive filters after injection molding. Compared with the traditional ejector-type demolding method, no additional drive structure is required. The demolding effect of the ejection mechanism of this application on automotive filters can be achieved simply by relying on the closing and disengagement of the upper mold base and the lower mold base, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automotive filter processing mold, comprising two fixed plates and an upper mold base and a lower mold base distributed between the two fixed plates and connected to the fixed plates, wherein the fixed plate on the upper mold base is connected to an external hydraulic cylinder device to control the up and down displacement of the upper mold base and cooperate with the lower mold base to complete injection molding, characterized in that: an injection channel is provided on the right side of the upper mold base to connect to an external injection molding machine;

[0007] The upper mold head is fixed to the lower end face of the upper mold base, and the injection channel extends to the lower end face of the upper mold head. The upper end face of the lower mold base is provided with a mold cavity that matches the upper mold head. The mold cavity has a convex-shaped structure design, and four sets of ejection mechanisms are respectively provided around the top opening edge of the mold cavity.

[0008] The ejection mechanism includes a movable groove opened at the edge of the top opening of the mold cavity, and an ejection plate rotatably connected in the movable groove. It is used for injection molding by fitting the upper mold base and the lower mold base together. When the upper mold base and the lower mold base separate, the ejection plate ejects the filter housing edge molded into the inner wall of the mold cavity and demolds it.

[0009] Preferably, a protrusion is fixed on the lower end face of the fixing plate on the upper mold base, and a slot is provided on the upper end face of the lower mold base at a position corresponding to the protrusion, and the slot matches the protrusion.

[0010] Preferably, the slot is rotatably connected to a gear, and a rack is meshed with one side of the gear. A pressure block is fixedly connected to the top of the rack, and the pressure block is slidably connected to the slot.

[0011] Preferably, the bottom of the slot has an extension groove communicating with the slot, the extension groove matches the rack, and a spring is provided in the extension groove, one end of the spring is fixed to the bottom of the extension groove, and the other end is fixed to the bottom of the rack.

[0012] Preferably, the gear is internally rotatably connected to a connecting shaft, and the connecting shaft is externally provided with a one-way rotation structure. The connecting shaft extends through the slot into the movable slot and is fixed to the top plate.

[0013] Preferably, the upper surface of the ejector plate is horizontally aligned with the mold cavity opening, and the ejector plate is made of metal.

[0014] Preferably, the unidirectional drive structure includes an electromagnetic ring embedded in the gear, and the electromagnetic ring is sleeved on the outside of the connecting shaft, which is made of magnetic metal.

[0015] Preferably, the unidirectional drive structure includes a unidirectional ratchet structure located between the gear and the connecting shaft.

[0016] Preferably, the lower mold base is fixed with guide columns connected to the fixing plate around its perimeter, and the top of the guide columns passes through the upper fixing plate and is movably connected to the upper fixing plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This application, through the design of an ejection mechanism, enables rapid demolding of automotive filters after injection molding. Compared to the traditional ejector-type demolding method, no additional drive structure is required; the demolding effect of the ejection mechanism of this application can be achieved solely by the closing and disengagement of the upper and lower mold bases. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall structural view of the present invention;

[0021] Figure 2 This is a rear view of the overall structure of the present invention;

[0022] Figure 3 This is a front view of the overall structure of the present invention;

[0023] Figure 4 This is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 5 This is an exploded view of the overall structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 A bottom view;

[0026] Figure 7 This is a structural view of the ejection mechanism of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Fixing plate; 2. Lower mold base; 3. Upper mold base; 4. Guide pillars; 5. Injection channel; 6. Mold cavity;

[0029] 7. Ejection mechanism; 71. Ejection plate; 72. Slot; 73. Rotating groove; 74. Protrusion; 75. Pressure block; 76. Rack; 77. Gear; 78. Connecting shaft; 79. Extension groove; 791. Spring; 792. Electromagnetic ring; 8. Die head. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 7 The present invention provides a technical solution:

[0032] An automotive filter processing mold includes two fixed plates and an upper mold base and a lower mold base distributed between the two fixed plates and connected to the fixed plates. The fixed plate on the upper mold base is connected to an external hydraulic cylinder device to control the up and down displacement of the upper mold base and cooperate with the lower mold base to complete the injection molding. An injection channel is opened on the right side of the upper mold base and connected to an external injection molding machine.

[0033] The upper mold head is fixed to the lower end face of the upper mold base, and the injection channel extends to the lower end face of the upper mold head. The upper end face of the lower mold base is provided with a mold cavity that matches the upper mold head. The mold cavity has a convex-shaped structure design, and four sets of ejection mechanisms are respectively provided around the top opening edge of the mold cavity.

[0034] The ejection mechanism includes a movable groove opened at the edge of the top opening of the mold cavity, and an ejection plate rotatably connected in the movable groove. It is used for injection molding by fitting the upper mold base and the lower mold base together. When the upper mold base and the lower mold base separate, the ejection plate ejects the filter housing edge molded into the inner wall of the mold cavity and demolds it.

[0035] Specifically, a protrusion is fixed to the lower end face of the fixing plate on the upper mold base, and a slot is opened on the upper end face of the lower mold base corresponding to the protrusion. The slot matches the protrusion, and a gear is rotatably connected inside the slot. A rack is meshed on one side of the gear. A pressure block is fixedly connected to the top of the rack. The pressure block is slidably connected to the slot. An extension groove communicating with the slot is opened at the bottom of the slot. The extension groove matches the rack, and a spring is installed inside the extension groove. One end of the spring is fixed to the bottom of the extension groove, and the other end is fixed to the bottom of the rack. A connecting shaft is rotatably connected inside the gear. A one-way rotation structure is provided outside the connecting shaft. The connecting shaft extends through the slot into the movable groove and is fixed to the ejector plate. The upper end face of the ejector plate is horizontally aligned with the mold cavity opening, and the ejector plate is made of metal.

[0036] Specifically, the unidirectional drive structure includes an electromagnetic ring embedded in the gear, and the electromagnetic ring is sleeved on the outside of the connecting shaft, which is made of magnetic metal.

[0037] Specifically, the unidirectional drive structure includes a unidirectional ratchet structure located between the gear and the connecting shaft.

[0038] Specifically, the lower mold base is fixed with guide columns connected to the fixing plate around its perimeter, and the top of the guide columns passes through the upper fixing plate and is movably connected to the upper fixing plate.

[0039] Working Principle: During operation, the upper and lower mold bases close, and the upper mold head is inserted into the mold cavity. Then, the injection molding machine connects to the injection channel and injects molten liquid into the mold cavity. After cooling and solidification, it forms the outer shell of the automotive filter. During the second process, the upper and lower mold bases close, and the protrusion inserts into the slot, squeezing the pressure block in the slot. The pressure block moves downward in the slot, driving the rack to move downward. Under the action of the one-way drive structure, the downward movement of the rack does not drive the gear to rotate. The bottom of the rack enters the extension groove and compresses the spring. After subsequent injection molding, when the upper mold base disengages from the lower mold base, the protrusion moves upward, and the pressure block presses down to restrict the protrusion. At this time, under the action of the spring, the rack moves upward synchronously. Under the action of the one-way drive structure, it drives the rack to rotate. The wheel rotates 90 degrees, which in turn drives the connecting shaft to rotate 90 degrees. This causes the ejector plate, which is fixed to the connecting shaft, to rotate 90 degrees inside the movable groove. At this time, the ejector plate will push the edge of the car filter housing, causing it to separate from the mold cavity, thus achieving the effect of demolding the car filter. Because the ejector plate has a large area, the force-bearing area with the car filter is large and the force is even, which will not cause damage to the car filter. In addition, the one-way drive structure uses an electromagnetic ring, which requires a controller connected to the electromagnetic ring. The controller controls the electromagnetic ring to conduct electricity and generate magnetic force to magnetically attract the connecting shaft to fix it to the gear and drive synchronously. Alternatively, a one-way ratchet structure can be used to achieve the method that the rack moves down without driving the gear to rotate, and the rack moves up to drive the gear to rotate.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing mold for an automotive filter, comprising two fixed plates (1) and an upper mold base (3) and a lower mold base (2) distributed between the two fixed plates (1) and connected to the fixed plates (1), wherein the fixed plate (1) on the upper mold base (3) is connected to an external hydraulic cylinder device to control the vertical displacement of the upper mold base (3) and cooperate with the lower mold base (2) to complete injection molding, characterized in that: The upper mold base (3) has an injection channel (5) on its right side that connects to an external injection molding machine; The upper mold base (3) has an upper mold head (8) fixed on its lower end face. The injection channel (5) extends to the lower end face of the upper mold head (8). The upper end face of the lower mold base (2) has a mold cavity (6) that matches the upper mold head (8). The mold cavity (6) has a convex-shaped structure design, and four sets of ejection mechanisms (7) are respectively arranged around the top opening edge of the mold cavity (6). The ejection mechanism (7) includes a movable groove opened at the top opening edge of the mold cavity (6) and an ejection plate (71) rotatably connected in the movable groove. It is used for injection molding by fitting the upper mold base (3) and the lower mold base (2). When the upper mold base (3) and the lower mold base (2) separate, the filter shell edge of the injection molded on the inner wall of the mold cavity (6) is ejected and demolded by the ejection plate (71).

2. The automotive filter processing mold according to claim 1, characterized in that: The lower end face of the fixing plate (1) on the upper mold base (3) is fixed with a protrusion (74), and the upper end face of the lower mold base (2) is provided with a slot (72) corresponding to the protrusion (74), and the slot (72) matches the protrusion (74).

3. The automotive filter processing mold according to claim 2, characterized in that: The slot (72) is rotatably connected to a gear (77), and a rack (76) is meshed on one side of the gear (77). A pressure block (75) is fixedly connected to the top of the rack (76), and the pressure block (75) is slidably connected to the slot (72).

4. The automotive filter processing mold according to claim 3, characterized in that: The bottom of the slot (72) is provided with an extension groove (79) that communicates with the slot (72). The extension groove (79) matches the rack (76), and a spring (791) is provided in the extension groove (79). One end of the spring (791) is fixed to the bottom of the extension groove (79), and the other end is fixed to the bottom of the rack (76).

5. The automotive filter processing mold according to claim 4, characterized in that: The gear (77) is internally rotatably connected to a connecting shaft (78), and the connecting shaft (78) is externally provided with a one-way rotation structure. The connecting shaft (78) extends through the slot (72) into the movable slot and is fixed to the ejector plate (71).

6. The automotive filter processing mold according to claim 5, characterized in that: The upper surface of the ejector plate (71) is level with the opening of the mold cavity (6), and the ejector plate (71) is made of metal.

7. The automotive filter processing mold according to claim 6, characterized in that: The unidirectional drive structure includes an electromagnetic ring (792) embedded in the gear (77), and the electromagnetic ring (792) is sleeved on the outside of the connecting shaft (78), which is made of magnetic metal.

8. The automotive filter processing mold according to claim 7, characterized in that: The unidirectional drive structure includes a unidirectional ratchet structure located between the gear (77) and the connecting shaft (78).

9. The automotive filter processing mold according to claim 8, characterized in that: The lower mold base (2) is fixed around the perimeter with guide columns (4) that are connected to the fixing plate (1), and the top of the guide column (4) passes through the upper fixing plate (1) and is movably connected to the upper fixing plate (1).

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