Filter injection mold with turntable positioning device

Abstract

The utility model discloses a filter injection mold with a turntable positioning device, which comprises a first front mold core, a second front mold core, two rear mold cores, a front mold plate, a rear mold plate, a turntable, a transmission mechanism, a power device, a positioning mechanism, a first ejector pin and an ejection mechanism, the two rear mold cores are embedded in the rotating disc, the rotating disc is arranged on the rear mold plate, the power device is connected with the rotating disc through the transmission mechanism and can drive the rotating disc to rotate, the positioning mechanism is detachably installed on the rear mold plate and can fix the rotating disc, the front mold plate can be connected with the rear mold plate, and a filter body cavity can be defined by the first front mold core and the rear mold cores. A filter upper cover cavity can be defined by the second front mold core and the rear mold cores, one rear mold core can move to the position of the other rear mold core through rotation of the rotary disc, and the ejection mechanism can eject the first ejector pin to enable one end of the first ejector pin to extend into the filter upper cover cavity.

Description

Technical Field

[0001] The utility model relates to the field of mold design, in particular to a filter injection mold with a turntable positioning device. Background Art

[0002] Injection molding is a common method for producing industrial products. It has the advantages of high production efficiency and high degree of automation, and is particularly suitable for mass production and molding of complex-shaped products. Filters are widely used in the fields of chemistry, water treatment, or aquaculture. Since filters have different shapes and structures depending on their usage scenarios, many filters are often obtained by injection molding.

[0003] Some filters on the market will set cotton paper between the filter body and the upper cover to ensure its filtering performance and improve its dustproof, waterproof and breathable performance. The current common practice is to add cotton paper by gluing or snapping after obtaining the filter. However, this method has many processing steps, cumbersome processing, and large cumulative errors, which will affect product accuracy and quality reliability. At the same time, under this method, the cotton paper is fixed at a later stage, and the fixation reliability of the cotton paper on the filter is low and it is easy to fall off, which is particularly difficult to achieve for products that require the cotton paper to be set in the filter. Utility Model Content

[0004] The purpose of the utility model is to provide a filter injection mold with a turntable positioning device, which can solve one or more of the above problems.

[0005] According to one aspect of the utility model, a filter injection mold with a turntable positioning device is provided, characterized in that it includes a first front mold core, a second front mold core, two rear mold cores, a front mold plate, a rear mold plate, a turntable, a transmission mechanism, a power device, a positioning mechanism, a first ejector pin and an ejection mechanism, the first front mold core and the second front mold core are both embedded in the front mold plate, the two rear mold cores are both embedded in the turntable, the turntable is arranged on the rear mold plate, the power device is connected to the turntable through the transmission mechanism and can drive the turntable to rotate, the positioning mechanism is installed on the rear mold plate and can detachably fix the turntable, the front mold plate can be connected to the rear mold plate, the first front mold core can surround the filter body cavity with the rear mold core, the second front mold core can surround the filter cover cavity with the rear mold core, one of the rear mold cores can be moved to the position of another rear mold core through the rotation of the turntable, and the ejection mechanism can push the first ejector pin so that one end of the first ejector pin extends into the filter cover cavity.

[0006] The beneficial effect of the utility model is that the utility model can be used for injection molding filters, and during injection molding, the filter body cavity can first be used to mold the filter body, then the mold can be opened, and after the cotton paper is placed, the power device drives the turntable to rotate to move the rear mold core that has been molded with the filter body, so that it can reach the second front mold core, and then the mold is closed to mold the upper cover on the filter body with the cotton paper. Therefore, the utility model can obtain the production of a filter with cotton paper inside through multi-step injection molding, and the filter obtained in this way has a strong fixation reliability of the cotton paper therein. At the same time, the utility model is also provided with a positioning mechanism, which can fix the position of the turntable after rotation and avoid misoperation of the turntable during injection molding. Combined with the two injection moldings, there is no need to specifically take out the filter body first, so that the error can be effectively reduced and the precision of the finished product can be improved. The utility model is also provided with a two-stage ejection structure to avoid damage to the ejection mechanism such as the ejector pin when the turntable rotates, ensuring the rotation action, and having strong reliability.

[0007] In some embodiments, the transmission mechanism includes a gear shaft and a gear rod, wherein the gear rod is connected to the power device, the gear shaft is connected to the turntable, and the gear rod is meshed with the gear shaft, so that the power device can realize the rotation of the turntable by pushing the gear rod to move.

[0008] In some embodiments, the positioning mechanism includes a clamping block, a connecting block and a connecting column, the rotating disk is provided with a clamping slot, the clamping block can be detachably clamped on the clamping slot, the clamping block is provided with a connecting hole, the connecting block is provided with a hole, and the connecting column passes through the connecting hole and the hole. Thus, the clamping block and the connecting block can be effectively connected through the connecting column, so that it is convenient for the external power device to realize the movement of the clamping block by driving the connecting block to move, thereby controlling the separation of the clamping block and the clamping slot.

[0009] In some embodiments, the positioning mechanism includes a limit block, the limit block is fixedly mounted on the rear template, the limit block is provided with a limit groove, and the clamping block is arranged in the limit groove. The limit groove can play a certain role in limiting and guiding the movement of the clamping block to reduce the erroneous movement of the clamping block.

[0010] In some embodiments, the positioning mechanism includes a height limiting block, a groove is provided on the top of the turntable, and the height limiting block extends into the groove. The height limiting block and the rear template can limit the axial movement of the turntable during rotation to ensure that the turntable only rotates as much as possible.

[0011] In some embodiments, a positioning protrusion is installed on the turntable, and an insert is embedded in the front template, and the insert is provided with a groove, and the positioning protrusion can be embedded in the groove. Thus, when the front template and the rear template are connected, the positions of the two can be accurately guaranteed, thereby ensuring the accuracy of the shapes of the various cavities surrounded by the first front mold core, the second front mold core and the rear mold core.

[0012] In some embodiments, the ejection mechanism includes a second ejector pin and an ejector plate, one end of the second ejector pin is embedded in the ejector plate, and the other end of the second ejector pin passes through the rear template. Thus, the ejector plate can drive the second ejector pin to move, so that the second ejector pin can eject the first ejector pin.

[0013] In some embodiments, the utility model further comprises an upper base plate, a lower base plate and a mold foot, wherein the upper base plate is connected to the rear mold plate, and one end of the mold foot is connected to the upper base plate and the other end is connected to the lower base plate.

[0014] In some embodiments, the ejection mechanism includes a guide column, one end of which is connected to the upper bottom plate, and the other end of which is connected to the lower bottom plate, and the guide column passes through the top plate. The guide column can guide the movement of the top plate to ensure the accuracy of the movement of the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic structural diagram of a filter injection mold with a turntable positioning device according to an embodiment of the present invention.

[0016] Figure 2 An exploded view of the structure schematic diagram of a filter injection mold with a turntable positioning device according to an embodiment of the utility model.

[0017] Figure 3 It is a cross-sectional view of a structural schematic diagram of a filter injection mold with a turntable positioning device according to an embodiment of the utility model.

[0018] Figure 4 The figure is a schematic diagram of the structure of a turntable of a filter injection mold with a turntable positioning device according to an embodiment of the utility model.

[0019] Figure 5 The figure is a schematic diagram of the structure of a turntable of a filter injection mold with a turntable positioning device according to an embodiment of the utility model.

[0020] In the figure: 1. first front mold core, 2. second front mold core, 3. rear mold core, 4. front mold plate, 5. rear mold plate, 6. turntable, 7. transmission mechanism, 8. power device, 9. positioning mechanism, 10. first ejector, 11. ejection mechanism, 12. upper base plate, 13. lower base plate, 14. mold foot, 61. slot, 62. slot, 63. positioning protrusion, 71. gear shaft, 72. gear rod, 91. block, 92. connecting block, 93. connecting column, 94. limit block, 95. height limit block, 911. connecting hole, 921. hole, 941. limit slot, 111. second ejector, 112. ejector plate and 113. guide column. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The utility model discloses a filter injection mold with a turntable positioning device, comprising a first front mold core 1, a second front mold core 2, two rear mold cores 3, a front mold plate 4, a rear mold plate 5, a turntable 6, a transmission mechanism 7, a power device 8, a positioning mechanism 9, a first ejector pin 10 and an ejection mechanism 11.

[0023] The first front mold core 1 and the second front mold core 2 are both fixedly mounted in the front mold plate 4 by bolts. The two rear mold cores 3 are both fixedly mounted in the turntable 6 by bolts. The rear mold plate 5 is provided with a receiving cavity, and the turntable 6 is rotatably arranged on the rear mold plate 5, and one rear mold core 3 after being arranged can be moved to the position of another rear mold core 3 by the rotation of the turntable 6, and one rear mold core 3 is located below the first front mold core 1, and the other rear mold core 3 is located below the second front mold core 2.

[0024] When closing the mold, the front template 4 can be connected to the rear template 5, the first front mold core 1 can enclose the filter body cavity with the rear mold core 3, and the filter body cavity can be used for molding the filter body, and the second front mold core 2 can enclose the filter cover cavity with the rear mold core 3, and the filter cover cavity can be used for molding the filter cover.

[0025] A positioning protrusion 63 is installed on the turntable 6, and an insert is embedded in the front template 4. The insert is provided with a groove. When the mold is closed, that is, when the front template 4 can be connected with the rear template 5, the positioning protrusion 63 can be embedded in the groove to ensure that the filter body cavity and the filter cover cavity are accurately enclosed.

[0026] The power device 8 is preferably a cylinder, and the cylinder body of the power device 8 is fixedly connected to the rear template 5 by bolts. The transmission mechanism 7 includes a gear shaft 71 and a gear rod 72. One end of the gear rod 72 is fixedly connected to the piston rod of the power device 8 by bolts, and the top of the gear shaft 71 is fixedly connected to the center of the bottom of the turntable 6 by bolts, and the gear rod 72 is meshed with the gear shaft 71. The power device 8 can drive the gear rod 72 to move linearly, and the linear movement of the gear rod 72 can drive the gear shaft 71 to rotate, so that the turntable 6 connected to the gear shaft 71 also rotates accordingly, that is, the power device 8 can be connected to the turntable 6 through the transmission mechanism 7, and can drive the turntable 6 to rotate.

[0027] The positioning mechanism 9 includes a clamping block 91, a connecting block 92, a connecting column 93 and a limiting block 94. The limiting block 94 is fixedly mounted on the rear template 5 by bolts, and the limiting block 94 is provided with a limiting groove 941, and the clamping block 91 is arranged in the limiting groove 941. The turntable 6 is provided with a clamping groove 61, and the clamping block 91 is provided with a connecting hole 911, and the connecting block 92 is provided with a hole 921, and the connecting column 93 passes through the connecting hole 911 and the hole 921, and the clamping block 91 can be clamped on the clamping groove 61, thereby fixing the turntable 6, so that the connecting block 92 is connected to the clamping block 91, so that the clamping block 91 can be driven by an external power device to drive the connecting block 92 to drive the clamping block 91 to be clamped or disengaged from the clamping groove 61, so that the turntable 6 can be fixed or released by the positioning mechanism 9. In addition, there are preferably two positioning mechanisms 9, and similarly, there are preferably two slots 61 of the turntable 6. The block 91 of each positioning mechanism 9 can be stuck on any slot 61 to fix the turntable 6, and one slot 61 can be moved to the position of another rear mold core 3 through the rotation of the turntable 6. Then, after the turntable 6 is rotated, the block 91 of the positioning mechanism 9 can always be stuck and fixed on the slot 61 located in front of it.

[0028] The positioning mechanism 9 also includes a height limiting block 95. The side of the top of the turntable 6 is provided with an annular groove 62. The height limiting block 95 extends into the groove 62, so that the height limiting block 95 and the rear template 5 can limit the axial movement of the turntable 6 to ensure that the turntable 6 can only perform rotational movement as much as possible.

[0029] The filter injection mold with a turntable positioning device of the utility model further includes an upper bottom plate 12, a lower bottom plate 13 and a mold foot 14. The upper bottom plate 12 is fixedly connected to the bottom of the rear mold plate 5 by bolts, one end of the mold foot 14 is fixedly connected to the upper bottom plate 12 by bolts, and the other end of the connecting plate 14 is fixedly connected to the lower bottom plate 13 by bolts.

[0030] The ejection mechanism 11 includes a second ejector pin 111 and an ejector plate 112. The ejector plate 112 is a double-layer plate structure. One end of the second ejector pin 111 is embedded in the ejector plate 112, and the other end of the second ejector pin 111 passes through the upper base plate 12 and the rear mold plate 5. The first ejector pin 10 is embedded in the turntable 6, and the first ejector pin 10 extends into the rear mold core 3. When the ejector plate 112 moves, the second ejector pin 111 can push the first ejector pin 10, so that one end of the first ejector pin 10 passes through the rear mold core 3.

[0031] The ejection mechanism 11 also includes a guide column 113, one end of which is fixedly embedded in the upper base plate 12 to be fixedly connected to the upper base plate 12, and the other end of the guide column 113 is fixedly embedded in the lower base plate 13 to be connected to the lower base plate, and the guide column 113 passes through the top plate 112, and the movement of the top plate 112 can be limited and guided by the guide column 113.

[0032] When the utility model is used, the utility model is first molded, that is, the front mold plate 4 and the rear mold plate 5 are connected, so that the first front mold core 1 can surround the filter body cavity with the rear mold core 3, and the second front mold core 2 can surround the filter cover cavity with the rear mold core 3, and at this time, the connecting column 93 of the positioning mechanism 9 is moved to make the clamping block 91 clamped on the clamping groove 61, that is, the turntable 6 is fixed, and the turntable 6 cannot rotate at this time. At this time, the filter body cavity can be injected for the first time to form the filter body in the filter body cavity.

[0033] After the first injection molding is completed, the utility model is opened for the first time, that is, the front template 4 and the rear template 5 are separated, and then, the card block 91 is driven by the connecting block to separate the card block 91 from the card slot 61, the turntable 6 becomes rotatable, and the power device 8 is started. The power device 8 drives the turntable 6 to rotate through the transmission mechanism 7, so that the rear mold core 3 with the filter body injected can be moved to the position of another rear mold core 3 through the rotation of the turntable 6. Correspondingly, the rear mold core 3 that has not been injected is moved to the position of the rear mold core 3 that has been injected.

[0034] After the rotation is in place, the block 91 can be moved again by the connecting block, so that the block 91 is stuck on the slot 61 rotated to the front of the block 91, so that the turntable 6 becomes non-rotatable again. At this time, cotton paper can be placed on the filter body obtained by injection molding through a robot or other device, and then the mold is closed again, and the filter cover cavity is injected for the second time, so as to inject the cover on the filter body, so as to obtain a complete filter by injection molding. At this time, the cotton paper can be reliably fixed between the filter body and the cover. In addition, while performing the second injection molding, the above-mentioned first injection molding can be performed, that is, a new filter body can be obtained by injection molding at the same time, so as to facilitate the subsequent second injection molding to improve production efficiency.

[0035] After the injection molding is completed, the mold can be opened for the second time, that is, the front template 4 and the rear template 5 are separated again, and then the top plate 112 can be moved by a cylinder or the like, so that the top plate 112 drives the second ejector 111 to move, and the second ejector 111 can push a part of the first ejector 10, so that one end of the part of the first ejector 10 extends into the filter upper cover cavity to eject the filter located on the cavity to obtain the filter.

[0036] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A filter injection mold with a turntable positioning device, characterized in that: The invention comprises a first front mold core, a second front mold core, two rear mold cores, a front mold plate, a rear mold plate, a turntable, a transmission mechanism, a power device, a positioning mechanism, a first ejector pin and an ejection mechanism. The first front mold core and the second front mold core are both embedded in the front mold plate, and the two rear mold cores are both embedded in the turntable. The turntable is arranged on the rear mold plate. The power device is connected to the turntable through the transmission mechanism and can drive the turntable to rotate. The positioning mechanism is installed on the rear mold plate and can detachably fix the turntable. The front mold plate can be connected to the rear mold plate. The first front mold core can surround a filter body cavity with the rear mold core, and the second front mold core can surround a filter cover cavity with the rear mold core. One rear mold core can be moved to the position of another rear mold core through the rotation of the turntable. The first ejector pin is arranged in the turntable. The ejection mechanism can push the first ejector pin so that one end of the first ejector pin extends into the filter cover cavity.

2. A filter injection mold with a turntable positioning device according to claim 1, characterized in that: The transmission mechanism comprises a gear shaft and a gear rod, the gear rod is connected to the power device, the gear shaft is connected to the rotating disk, and the gear rod is meshed with the gear shaft.

3. The filter injection mold with a turntable positioning device according to claim 1, characterized in that: The positioning mechanism includes a clamping block, a connecting block and a connecting column. The turntable is provided with a clamping slot, the clamping block can be detachably clamped on the clamping slot, the clamping block is provided with a connecting hole, the connecting block is provided with a hole, the connecting column passes through the connecting hole and the hole, and the connecting column can move along the hole.

4. A filter injection mold with a turntable positioning device according to claim 3, characterized in that: The positioning mechanism comprises a limiting block, the limiting block is fixedly mounted on the rear template, the limiting block is provided with a limiting groove, and the clamping block is arranged in the limiting groove.

5. The filter injection mold with a turntable positioning device according to claim 1, characterized in that: The positioning mechanism comprises a height limiting block, a groove is provided on the top of the rotating disk, and the height limiting block extends into the groove.

6. The filter injection mold with a turntable positioning device according to claim 1, characterized in that: The rotating disk is provided with a positioning protrusion, the front template is embedded with an insert block, the insert block is provided with a groove, and the positioning protrusion can be embedded in the groove.

7. The filter injection mold with a turntable positioning device according to claim 1, characterized in that: The ejection mechanism comprises a second ejector pin and an ejector plate, one end of the second ejector pin is embedded in the ejector plate, and the other end of the second ejector pin passes through the rear template.

8. The filter injection mold with a turntable positioning device according to claim 7, characterized in that: It comprises an upper bottom plate, a lower bottom plate and a mold foot, wherein the upper bottom plate is connected to the rear mold plate, one end of the mold foot is connected to the upper bottom plate, and the other end is connected to the lower bottom plate.

9. The filter injection mold with a turntable positioning device according to claim 8, characterized in that: The ejection mechanism comprises a guide column, one end of which is connected to the upper bottom plate, and the other end of which is connected to the lower bottom plate, and the guide column passes through the top plate.

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