A rotary mold for an automated production line

Abstract

The present application relates to the field of oil filter stamping dies, and in particular to a rotary die for use in an automated production line, which includes a lower die seat for placing the oil filter and a lower die sleeve arranged outside the lower die seat for limiting the position of the oil filter, a limiting space for limiting the position of the oil filter is formed between the lower die sleeve and the lower die seat, the lower die sleeve is slidably connected to the lower die seat, the lower die sleeve is driven to slide downward by an external force, a reset component for driving the lower die sleeve to reset is arranged between the lower die seat and the lower die, a rotary limit component for controlling the reset position of the lower die sleeve by sliding the lower die sleeve is arranged between the lower die seat and the lower die sleeve, and the rotary limit component can control the lower die sleeve to reset to extend out of the upper end of the lower die seat or reset to be flush with the upper end of the lower die seat. The present application has the effect that after the oil filter is stamped, the lower die sleeve is flush with the lower die seat, which is convenient for adapting to the robot gripping requirements on the automated production line.

Description

Technical Field

[0001] The present application relates to the field of oil filter stamping dies, and in particular to a rotary die used in an automated production line. Background Art

[0002] The oil filter is an important part of the oil filter machine, playing an important role in filtering impurities in the oil. The commonly used oil filter processing technology currently includes die stamping technology. Die stamping refers to a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform it, thereby obtaining the required parts.

[0003] Reference Figure 1 , is a schematic diagram of an existing oil filter, the oil filter 9 includes two disc-shaped filter screens 92, a support member 93 located between the two filter screens 92, and a liner 91 wrapped around the outside of the filter screen 92, one end of the liner 91 is bent inward to form a first flange 911. When stamping the oil filter 9, it is necessary to place the two filter screens 92 and the support member 93 in the liner 91, and make the filter screen 92 abut against the first flange 911 of the liner 91 to form the oil filter 9 to be stamped. Then, the oil filter 9 is placed on a punching machine, and the oil filter 9 is punched by the punching machine, so that the side of the liner 91 away from the first flange 911 is bent inward to wrap the filter screen 92 and the support member 93.

[0004] Reference Figure 2The punching machine currently used includes a vertically sliding punch (not shown in the figure) and an upper die 3 mounted on the punch for punching the oil filter 9. In order to ensure that when the upper die 3 is punched on the liner 91, the liner 91 can be bent inward to wrap the filter 92 and the support 93, a guide groove 31 is provided at the lower end of the upper die 3 to guide the bending direction of the liner 91. The guide groove 31 is truncated cone-shaped as a whole, and the diameter of the lower end of the guide groove 31 is greater than the diameter of the upper end of the guide groove 31, so that when the upper die 3 is driven by the punching machine to abut against the oil filter 9, the liner 91 can be bent inward along the inclined groove wall of the guide groove 31. In order to ensure that the liner 91 after the final molding can be bent to the inner wall to abut against the filter 92, four upper dies 3 are provided, and the groove wall slopes of the four guide grooves 31 opened on the upper dies 3 increase from 0 degrees to 90 degrees in sequence, so that the oil filter 9 can be punched in sequence through multiple upper dies 3. The plurality of upper dies 3 are respectively called the first upper die 32, the second upper die 33, the third upper die 34 and the fourth upper die 35 according to the inclination degree of the side wall of the guide groove 31. The four upper dies 3 are all mounted on the punch and are evenly spaced around the axis of the punch, and the four upper dies 3 can rotate around the axis of the punch. When the oil filter 9 to be punched is placed directly below the first upper die 32, the oil filter 9 is punched through the first upper die 32, and the positions of the upper dies 3 can be changed by rotating the four upper dies 3 around the axis of the punch, so that the bushing 91 of the oil filter 9 can be punched in and out in sequence through the four upper dies 3.

[0005] In order to facilitate the fixing of the oil filter 9, a stamping die is placed on the stamping machine. Figure 3 The existing stamping die mainly includes a lower die seat 1 for placing the oil filter 9 and a limiting cylinder 10 sleeved on the lower die seat 1 for limiting the position of the oil filter 9. One end of the limiting cylinder 10 extends out of the lower die seat 1, and a limiting space 11 for limiting the position of the oil filter 9 is formed between the portion of the limiting cylinder 10 extending out of the lower die seat 1 and the lower die seat 1. By placing the oil filter 9 to be stamped in the limiting space 11, the positioning of the oil filter 9 can be achieved, and stamping is more convenient. Finally, the finished oil filter 9 after stamping will be located in the limiting space 11, and the oil filter 9 in the limiting space 11 will be picked up and collected manually and transported to the next process.

[0006] However, this manual picking method of oil filter products will cause a waste of manpower costs and cannot meet the needs of automated production lines. In addition, during the manual picking process, if the operation is not careful or the punching machine fails, it may pose a certain degree of threat to the life and health of the staff. Summary of the invention

[0007] In order to reduce labor costs, facilitate the formed oil filter products to adapt to the needs of automated production lines, and reduce the risks to workers due to improper operation or failure of the stamping machine, the present application provides a rotary mold for an automated production line.

[0008] The present application provides a rotary mold for an automated production line using the following technical solution:

[0009] A rotary mold for an automated production line comprises a lower mold base for placing an oil filter and a lower mold sleeve arranged outside the lower mold base for limiting the oil filter, a limiting space for limiting the position of the oil filter is formed between the lower mold sleeve and the lower mold base, the lower mold sleeve is slidably connected to the lower mold base, the lower mold sleeve is driven to slide downward by an external force, a reset component for driving the lower mold sleeve to reset is arranged between the lower mold base and the lower mold sleeve, a rotation limit component for controlling the reset position of the lower mold sleeve by sliding the lower mold sleeve is arranged between the lower mold base and the lower mold sleeve, and the rotation limit component can control the end of the lower mold sleeve to reset to extend out of the upper end of the lower mold base or reset to be flush with the upper end of the lower mold base.

[0010] By adopting the above technical scheme, the limiting space formed between the lower die sleeve and the lower die base limits the position of the oil filter during stamping, thereby ensuring the accuracy of the upper die stamping. The rotation limiting assembly and the reset assembly can drive the lower die sleeve to rotate and slide down through the stamping of the upper die and control the reset position of the lower die sleeve during reset. When the lower die sleeve is reset to be flush with the upper end of the lower die base, the oil filter is stamped and is easy to be mechanically collected and grasped on the automated production line.

[0011] Optionally, the reset assembly includes a reset spring sleeved on the lower die base, one end of the reset spring is fixedly connected to the lower die base, and the other end abuts against the lower die sleeve.

[0012] By adopting the above technical solution, when the lower die sleeve slides downward under the punching pressure of the upper die, the return spring is compressed downward by force, and when the pressure applied to the lower die sleeve disappears, the lower die sleeve is reset under the elastic force of the return spring.

[0013] Optionally, the lower die sleeve is externally sleeved with a die sleeve fixed to the lower die base; the rotation limit assembly includes a guide pin installed on the side wall of the die sleeve and an annular gear ring fixed to the lower die sleeve on the side facing the die sleeve, the annular gear ring is composed of a plurality of teeth arranged in series, a V-shaped groove for the guide pin to slide into is formed between two adjacent teeth, and when the lower die sleeve is driven to slide downward by the external force, the guide pin reaches into the V-shaped groove from the side wall of the tooth abutting therewith to drive the lower die sleeve to rotate and slide down along the inclination of the side wall of the tooth.

[0014] By adopting the above technical solution, when the lower mold sleeve is driven to slide downward by external force, the annular gear ring slides in the direction of the guide pin. When the annular gear ring slides to the point where the guide pin abuts against the side wall of the tooth, the annular gear ring is driven by the guide pin to rotate and slide down along the inclination of the side wall of the tooth until the annular gear ring slides to the point where the guide pin abuts against the bottom of the V-groove.

[0015] Optionally, an escape space is provided on the side wall of the lower die sleeve, the escape space is opened around the side wall of the lower die sleeve, the guide pin extends into the escape space, and the annular gear ring is installed in the escape space.

[0016] By adopting the above technical solution, the avoidance space can prevent the guide pin from blocking the lower mold sleeve when the lower mold sleeve slides down.

[0017] Optionally, the rotation limit assembly also includes a hook installed on the lower die base and an outer gear ring fixed to the inner wall of the lower die sleeve, the outer gear ring is located on the side of the hook away from the limiting space, the outer gear ring is composed of a plurality of saw teeth arranged in succession, and a limiting groove for the hook to be embedded is formed between two adjacent saw teeth; when the lower die sleeve is driven to rotate by the guide pin, the hook rotates from the corresponding position of the limit groove to the corresponding position of the groove wall of another limit groove; when the lower die sleeve is driven to reset by the reset assembly, the hook reaches the bottom of the other limit groove from the corresponding position of the groove wall of the other limit groove to drive the lower die sleeve to rotate and reset.

[0018] By adopting the above technical solution, when the upper die is pressed down, the guide pin drives the lower die sleeve to rotate once, so that the hook is located directly above the wall of the limiting groove; when the lower die sleeve rises due to the elastic force of the reset spring, the hook drives the outer gear ring to rotate and rise along the slope of the serrated side wall, and the outer gear ring also drives the lower die sleeve to rotate and rise, completing a stamping work, and the hook reaches the bottom of one limiting groove from the bottom of another limiting groove.

[0019] Optionally, the number of the saw teeth is the same as the number of the teeth, and when the hook and the side wall of the saw teeth are located in the same vertical plane, the guide pin is located at the bottom of the V-shaped groove; when the hook is located in the limit groove, the guide pin and the side wall of the V-shaped groove are located in the same vertical plane.

[0020] By adopting the above technical solution, it can be ensured that the matching relationship between the guide pin and the teeth and the matching relationship between the hook and the saw teeth are always consistent, ensuring that the rotation limit assembly works normally and continuously.

[0021] Optionally, the shape of the hook side wall is designed to fit the shape of the serrated side wall.

[0022] By adopting the above technical solution, the saw teeth can be smoothly rotated and raised along the shape of the side wall of the hook, thereby reducing the friction resistance between the side wall of the saw teeth and the hook.

[0023] Optionally, the limit groove includes a plurality of first limit grooves and second limit grooves for controlling the reset position of the lower die sleeve; the first limit groove controls the end of the lower die sleeve to reset to extend out of the upper end of the lower die base, and the second limit groove controls the end of the lower die sleeve to reset to be flush with the lower die base; the first limit groove and the second limit groove are staggered.

[0024] By adopting the above technical solution, when the hook is inserted into the first limit groove, the cylinder drives the upper die to continue the stamping work; when the hook is inserted into the second limit groove, the stamping work of the oil filter is completed, and the end of the lower die sleeve is flush with the lower die seat, which is convenient for the robot to grab it to the next process.

[0025] Optionally, a bearing is provided between the lower die seat and the lower die sleeve.

[0026] By adopting the above technical solution, the bearing can support the lower die sleeve and reduce the friction between the lower die sleeve and the reset assembly when the lower die sleeve rotates.

[0027] Optionally, a cross bar is detachably connected to the lower mold base, and the cross bar extends out of the lower mold base and is fixedly connected to the hook; the mold sleeve is a cylinder with one end closed, and the lower mold base and the closed end of the mold sleeve are fixedly connected by a top screw; a groove is provided on the side of the cross bar facing the closed end of the mold sleeve, and the top screw extends into the groove.

[0028] By adopting the above technical solution, the cross bar can realize the detachable connection between the hook and the lower die base, saving welding costs; by inserting the top screw into the slot, the position of the cross bar in the lower die base can be fixed to prevent the cross bar from shaking and affecting the matching relationship between the hook and the outer gear ring, thereby ensuring the normal operation of the rotation limit assembly.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The present application makes the reset position of the end of the lower die sleeve adjustable by slidingly connecting the lower die sleeve with the lower die seat; by setting the reset component, when the pressure applied to the lower die sleeve disappears, the lower die sleeve is automatically reset; the setting of the rotation limit component can control the reset position of the lower die sleeve while stamping the oil filter. When the end of the lower die sleeve is reset to be flush with the lower die seat, the oil filter is stamped, which is convenient for the robot on the automated production line to grab and transport it to the next process;

[0031] 2. The cooperation of the guide pin and the annular gear ring in the rotation limit assembly ensures that when the lower die sleeve is pressed down by the upper die, the guide pin and the side wall of the tooth abut against each other. When the lower die sleeve continues to descend, it will rotate and slide down along the slope of the side wall of the tooth driven by the guide pin to complete one-time stamping of the oil filter. The cooperation of the hook and the outer gear ring ensures that when one-time stamping of the oil filter is completed, the hook reaches the top of the wall of the limit groove from the bottom of the limit groove. When the lower die sleeve is reset by the reset assembly, the hook drives the lower die sleeve to rotate and rise along the slope of the serrated side wall until the end of the lower die sleeve is reset to extend above the lower die seat, waiting for the next stamping.

[0032] 3. The setting of the first limit groove and the second limit groove can control the reset position of the end of the lower die sleeve. When the upper die continues to stamp the oil filter, the lower die sleeve rotates down and rotates to reset until the hook is stuck at the bottom of the second limit groove. At this time, the stamping work of the oil filter is completed, and the reset position of the end of the lower die sleeve is flush with the lower die sleeve, which is convenient for the robot to grab. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram made in the background technology of this application to reflect the existing oil filter structure.

[0034] Figure 2 This is a schematic diagram of the background technology of this application to illustrate the structure of the upper die connected to the punch of the punching machine.

[0035] Figure 3 It is a schematic diagram made in the background technology of this application to reflect the existing stamping die structure.

[0036] Figure 4 It is a schematic diagram of the overall structure of the rotary mold of this application.

[0037] Figure 5 It is a cross-sectional schematic diagram made to illustrate the internal structure of the rotary mold of the present application.

[0038] Figure 6 It is a partial cross-sectional schematic diagram made to reflect the matching relationship of the rotation limit assembly when the lower mold sleeve is in the initial position.

[0039] Figure 7 It is a partial cross-sectional schematic diagram made to reflect the cooperation relationship of the rotation limit assembly when the lower die sleeve moves to be flush with the lower die base.

[0040] Description of reference numerals: 1. lower die seat; 11. limit space; 12. first lower die seat; 13. second lower die seat; 131. avoidance space; 14. placement table; 15. placement space; 2. lower die sleeve; 3. upper die; 31. guide groove; 32. first upper die; 33. second upper die; 34. third upper die; 35. fourth upper die; 5. die jacket; 6. reset assembly; 61. reset spring; 7. rotation limit assembly; 71. guide pin; 72 , annular gear ring; 721, teeth; 722, V-shaped groove; 73, outer gear ring; 731, serration; 7311, deep serration; 7312, shallow serration; 732, limit groove; 7321, first limit groove; 7322, second limit groove; 74, hook; 75, cross bar; 751, slot; 8, bearing; 81, shaft ring; 9, oil filter; 91, bushing; 911, first flange; 92, filter; 93, support; 10, limit cylinder. DETAILED DESCRIPTION

[0041] The following is combined with Figure 4-7 This application is described in further detail.

[0042] Since the stamped oil filter falls into the groove formed by the limited space, it is not convenient for the robot to pick it up; and since the oil filter is in the shape of a filter mesh, it cannot be sucked out of the limited space by the adsorption device and transported to the next process, so it cannot meet the needs of an automated production line.

[0043] The present application embodiment discloses a rotary mold for an automated production line. It can be installed on an existing production line and used in conjunction with an existing upper mold 3. Figure 4 The rotary mold used in the automated production line includes a lower mold base 1 for placing the oil filter 9 and a lower mold sleeve 2 which is sleeved outside the lower mold base 1 and used to limit the position of the oil filter 9. One end of the lower mold sleeve 2 extends out of the lower mold base 1, and a limiting space 11 is formed between the lower mold base 1 and the lower mold base 1, where the upper end of the lower mold sleeve 2 extends out of the lower mold base 1, to limit the position of the oil filter 9 during stamping.

[0044] Among them, the lower die sleeve 2 is slidably connected to the lower die base 1, and a reset component 6 for driving the lower die sleeve 2 to reset and a rotation limit component 7 for controlling the reset position of the lower die sleeve 2 by sliding the lower die sleeve 2 are arranged between the lower die base 1 and the lower die sleeve 2. The rotation limit component 7 can drive the lower die sleeve 2 to reset until the end extends out of the upper end of the lower die base 1 or resets to the end flush with the upper end of the lower die base 1.

[0045] When in use, the rotary mold can be installed on the assembly line of the automated production line, and the four existing upper molds 3 are respectively installed on the linear drive device just above the assembly line, and the four upper molds 3 are sequentially spaced and distributed along the length direction of the assembly line. When the assembly line drives the rotary mold to slide to the first upper mold 32, the linear drive device will drive the first upper mold 32 to punch the oil filter 9 located at the rotary mold, and the rotary limit assembly 7 controls the lower mold sleeve 2 to reset to the upper end of the end extending out of the lower mold seat 1; then the assembly line drives the rotary mold to slide to the second upper mold 33 to punch the oil filter through the second upper mold 33, and the cycle is repeated until the oil filter 9 is punched through the fourth upper mold 35 to form a finished oil filter 9, and the rotary limit assembly 7 controls the lower mold sleeve 2 to reset to be flush with the upper end of the lower mold seat 1, so that the manipulator on the automated production line can grab the finished oil filter 9 to the next process, so as to reduce labor costs and the danger of manual operation.

[0046] Among them, the linear drive device can be a cylinder, or it can be a punch of a stamping machine, an electric push rod, etc. The specific one can be selected according to actual needs. This application takes the use of a cylinder as an example for the linear drive device.

[0047] Of course, the rotary die can also be installed under the punch of the punching machine, and the oil filter 9 can be punched by operating the four upper dies 3 to rotate around the axis of the punch. After the punching is completed, the punched oil filter 9 can be taken away by a robot.

[0048] Reference Figure 5 A mold jacket 5 is sleeved on the outside of the lower mold sleeve 2. The mold jacket 5 is cylindrical with one end sealed. The lower mold base 1 is fixedly connected to the closed end of the mold jacket 5. The lower mold sleeve 2 is slidably connected between the lower mold base 1 and the mold jacket 5. The lower mold base 1 includes a first lower mold base 12 fixedly connected to the closed end of the mold jacket 5 and a second lower mold base 13 fixedly connected to the end of the first lower mold base 12 away from the closed end of the mold jacket 5. The limiting space 11 is located on the side of the second lower mold base 13 away from the first lower mold base 12. The diameter of the first lower mold base 12 is greater than the diameter of the second lower mold base 13, and a placement platform 14 is formed at the connection between the first lower mold base 12 and the second lower mold base 13. A placement groove is circumferentially opened on the inner wall of the lower mold sleeve 2 near the end of the second lower mold base 13, and a placement space 15 for placing the reset component 6 is formed between the placement platform 14 and the placement groove.

[0049] Reference Figure 5The reset assembly 6 includes a reset spring 61, which is sleeved on the second lower die seat 13. One end of the reset spring 61 is fixedly connected to the placement table 14, and the other end is in contact with the wall of the placement slot. When the cylinder drives the upper die 3 to punch the oil filter 9, the upper die 3 also applies a downward pressure to the lower die sleeve 2, driving the lower die sleeve 2 to move downward first, and the reset spring 61 is also compressed downward; when the lower die sleeve 2 is flush with the lower die seat 1, pressure is applied to the oil filter 9 to punch the oil filter 9. When the upper die 3 completes the initial punching of the oil filter 9, the pressure applied to the lower die sleeve 2 disappears, and the lower die sleeve 2 is reset under the elastic force of the reset spring 61.

[0050] Reference Figure 5 and Figure 6 The rotation limit assembly 7 includes a guide pin 71 mounted on the side wall of the mold sleeve 5 and an annular gear ring 72 fixed to the outer wall of the lower mold sleeve 2. The annular gear ring 72 includes a plurality of teeth 721 connected end to end, and a V-shaped groove 722 is formed between two adjacent teeth 721 for the guide pin 71 to be embedded.

[0051] There can be one guide pin 71, or multiple guide pins 71 can be arranged around the axis of the mold jacket 5, as long as the two guide pins 71 can be simultaneously located at the bottom of the corresponding V-shaped groove 722. This application takes the example of two guide pins 71 being arranged and the connecting line of the two guide pins 71 being perpendicular to the axis of the mold jacket 5 as an example for explanation.

[0052] In order to prevent the guide pin 71 from obstructing the lower die sleeve 2 when the lower die sleeve 2 moves downward, an escape space 131 is further opened on the side wall of the lower die sleeve 2. The escape space 131 is opened around the side wall of the lower die sleeve 2, and the annular gear ring 72 is fixedly connected in the escape space 131. The guide pin 71 is located on the side of the annular gear ring 72 away from the limiting space 11, and the ends of the two guide pins 71 both extend into the escape space 131 to cooperate with the annular gear ring 72.

[0053] When the lower die sleeve 2 is pressed down by the upper die 3, the annular gear ring 72 also slides in the direction of the guide pin 71 until the guide pin 71 abuts against the side wall of any tooth 721. When the lower die sleeve 2 continues to slide downward under the stamping action of the upper die 3, the guide pin 71 reaches the V-shaped groove 722 from the side wall of the tooth 721 abutting against it, so as to drive the lower die sleeve 2 to rotate and slide down along the inclination of the side wall of the tooth 721 until the guide pin 71 abuts against the bottom of the V-shaped groove 722.

[0054] Reference Figure 6 and Figure 7The rotation limiting assembly 7 further includes a hook 74 mounted on the lower die base 1 and an outer gear ring 73 fixed to the inner wall of the lower die sleeve 2. The hook 74 can be mounted on the first lower die base 12 or on the second lower die base 13. This application takes the hook 74 mounted on the first lower die base 12 as an example for explanation. The outer gear ring 73 is located on the side of the hook 74 away from the second lower die base 13. The outer gear ring 73 includes a plurality of saw teeth 731 connected end to end, and a limiting groove 732 for the hook 74 to be embedded is formed between two adjacent saw teeth 731.

[0055] There can be one or more hooks 74, as long as all the hooks 74 can reach the bottom of the limiting groove 732 at the same time. This application takes the example of two hooks 74 and the line connecting the two hooks 74 being perpendicular to the axis of the lower mold base 1 as an example.

[0056] In order to ensure that the rotation limit assembly 7 can control the lower die sleeve 2 to continuously rotate, slide down and rotate to reset when the upper die 3 is pressed down, the number of teeth 721 is the same as the number of saw teeth 731 .

[0057] In the initial position, the hook 74 is located at the bottom of the limiting groove 732 , and the guide pin 71 is located directly below the side wall of the V-shaped groove 722 . When the lower die sleeve 2 is pressed by the upper die 3 and slides vertically downward, the outer gear ring 73 also moves downward, gradually releasing the matching relationship between the hook 74 and the outer gear ring 73, and when the lower die sleeve 2 slides until the guide pin 71 abuts against the side wall of the tooth 721, under the action of the pressure continuously applied by the upper die 3, the lower die sleeve 2 is driven by the guide pin 71 to rotate and slide down at the same time, and at this time the hook 74 reaches from the top of one limiting groove 732 to the top of the groove wall of the other limiting groove 732 until the oil filter 9 is stamped once; after the stamping is completed, the cylinder drives the upper die 3 to rise, the pressure applied to the lower die sleeve 2 disappears, and the lower die sleeve 2 is driven to reset by the reset assembly 6, and the hook 74 reaches from the top of the groove wall of the other limiting groove 732 to the bottom of the other limiting groove 732 to drive the lower die sleeve 2 to rotate and reset, and at this time the relative position of the tooth 721 and the guide pin 71 is the same as the initial position, completing a stamping work, and then the assembly line drives the rotary die to move until the rotary die reaches the bottom of the next upper die.

[0058] Reference Figure 6 and Figure 7 In order to facilitate the hook 74 to drive the outer gear ring 73 to rotate and reduce the friction resistance between the hook 74 and the side wall of the limiting groove 732, the shape of the hook 74 is designed to fit the shape of the side wall of the limiting groove 732 abutting against it.

[0059] In order to realize the punching of the oil filter 9 with the upper die 3, the outer gear ring 73 gradually rotates until the punching of the oil filter 9 is completed through the fourth upper die 35, and the reset position of the lower die sleeve 2 is flush with the lower die base 1, which is convenient for the robot to grab. The limit groove 732 located between two adjacent saw teeth 731 includes a plurality of first limit grooves 7321 and a plurality of second limit grooves 7322 for controlling the reset position of the lower die sleeve 2, and the first limit groove 7321 and the second limit groove 7322 are staggered. When the hook 74 is located at the bottom of the first limit groove 7321, the end of the lower die sleeve 2 is reset to extend above the lower die base 1; when the hook 74 is located at the bottom of the second limit groove 7322, the end of the lower die sleeve 2 is reset to be flush with the lower die base 1. In the present application, three first limiting grooves 7321 and one second limiting groove 7322 are staggered so that after the lower die sleeve 2 is pressed down four times, the lower die sleeve 2 is reset to the end flush with the lower die base 1, so that the robot arm can grab the oil filter 9 after stamping.

[0060] Reference Figure 5 In order to reduce the friction between the lower die sleeve 2 and the return spring 61 when it rotates, and to ensure the stability of the lower die sleeve 2 installed between the mold outer sleeve 5 and the lower die base 1, a bearing 8 is installed between the return spring 61 and the lower die sleeve 2, and one shaft ring 81 of the bearing 8 is fixedly connected to one end of the return spring 61 facing the lower die sleeve 2, and the other shaft ring 81 is fixedly connected to the inner wall of the lower die sleeve 2.

[0061] Reference Figure 5 The two hooks 74 can be fixedly connected to the side wall of the first lower die base 12 or detachably connected to the side wall of the first lower die base 12. This application takes the example of the hook 74 being detachable from the first lower die base 12 as an example for explanation. A cross bar 75 is detachably connected inside the first lower die base 12. The cross bar 75 runs through the inside of the first lower die base 12 and both ends of the cross bar 75 are fixedly connected to the hook 74, so as to realize the detachable connection between the hook 74 and the first lower die base 12.

[0062] Reference Figure 5 The first lower die base 12 is fixedly connected to the closed end of the die sleeve 5 by a top screw. In order to prevent the cross bar 75 from shaking and affecting the matching relationship between the hook 74 and the outer gear ring 73, thereby ensuring the normal operation of the rotation limit assembly 7, the top screw extends to the cross bar 75, and a slot 751 is opened at one end of the cross bar 75 facing the top screw. The top screw extends into the slot 751 to enhance the stability of the cross bar 75.

[0063] The implementation principle of a rotary mold used in an automated production line in the embodiment of the present application is as follows: when in use, the rotary mold is first installed on the conveyor belt on the automated production line, and the existing four upper molds 3 are sequentially installed above the automated production line according to the degree of closing, and the rotary mold is driven by the conveyor belt to the bottom of each upper mold 3 in turn, so that the oil filter 9 is stamped cyclically and continuously in turn through the four upper molds 3. When stamping the oil filter 9, the staff will first place the assembled oil filter 9 in the limited space 11, and the cylinder controls the first upper mold to move downward, first driving the lower mold sleeve 2 located above the oil filter 9 to move downward, and when the upper mold 3 continues to press down to stamp the oil filter 9, the guide pin 71 forces the lower mold sleeve 2 to rotate and slide down along the slope of the teeth 721 until the oil filter 9 is stamped once. Then the cylinder drives the upper die 3 to rise, and the lower die sleeve 2 is also reset under the elastic force of the reset spring 61, and driven by the hook 74, it rotates and rises until the hook 74 is stuck in the first limit groove 7321, and the end of the lower die sleeve 2 is reset to extend above the lower die seat 1. Then the conveyor belt drives the rotating die to move until it reaches directly below the second upper die 33, and the second upper die 33 repeats the above steps to complete a stamping, and the cycle is repeated in sequence until the oil filter 9 is stamped by the fourth upper die 35, and the stamping and forming of the oil filter 9 is completed. At this time, the lower die sleeve 2 also rotates so that the hook 74 is stuck at the bottom of the second limit groove 7322, and the reset position of the lower die sleeve 2 is flush with the lower die seat 1, and the oil filter 9 is horizontally clamped by the manipulator on the automated production line to the next process.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary mold for an automated production line, comprising a lower mold base (1) for placing an oil filter and a lower mold sleeve (2) arranged outside the lower mold base (1) for limiting the position of the oil filter (9), wherein a limiting space (11) for limiting the position of the oil filter is formed between the lower mold sleeve (2) and the lower mold base (1), characterized in that: The lower die sleeve (2) is slidably connected to the lower die base (1), and the lower die sleeve (2) is driven to slide downward by an external force. A reset component (6) is provided between the lower die base (1) and the lower die sleeve (2) for driving the lower die sleeve (2) to reset. A rotation limit component (7) is provided between the lower die base (1) and the lower die sleeve (2) for controlling the reset position of the lower die sleeve (2) through the sliding of the lower die sleeve (2). The rotation limit component (7) can control the end of the lower die sleeve (2) to reset to extend out of the upper end of the lower die base (1) or reset to be flush with the upper end of the lower die base (1); the outer sleeve of the lower die sleeve (2) is provided with a mold fixedly connected to the lower die base (12). The sleeve (5) is provided with a rotation limit assembly (7), comprising a guide pin (71) mounted on the side wall of the mold sleeve (5) and an annular gear ring (72) fixedly connected to the side of the lower mold sleeve (2) facing the mold sleeve (5), wherein the annular gear ring (72) comprises a plurality of teeth (721) connected end to end, and a V-shaped groove (722) for the guide pin (71) to slide into is formed between two adjacent teeth (721), and when the lower mold sleeve (2) is forced to slide downward, the guide pin (71) reaches the V-shaped groove (722) from the side wall of the tooth (721) abutting against it, so as to drive the lower mold sleeve (2) to rotate and slide down along the inclination of the side wall of the tooth (721).

2. The rotary mold for an automated production line according to claim 1, characterized in that: The reset assembly (6) comprises a reset spring (61) sleeved on the lower die base (1), the reset spring (61) being vertically arranged along the axis of the lower die base (1), the lower end of the reset spring (61) being fixedly connected to the lower die base (14), and the upper end of the reset spring (61) being in contact with the lower die sleeve (2) to apply an upward force to the lower die sleeve (2).

3. The rotary mold for an automated production line according to claim 1, characterized in that: An escape space (131) is provided on the side wall of the lower die sleeve (2), the escape space (131) is provided around the side wall of the lower die sleeve (2), the guide pin (71) extends into the escape space (131), and the annular gear ring (72) is installed in the escape space (131).

4. The rotary mold for an automated production line according to claim 1, characterized in that: The rotation limiting assembly (7) further comprises a hook (74) mounted on the lower die base (1) and an outer tooth ring (73) fixedly connected to the inner wall of the lower die sleeve (2), wherein the outer tooth ring (73) is located on a side of the hook (74) away from the limiting space (11), and the outer tooth ring (73) comprises a plurality of saw teeth (731) connected end to end, and a limiting groove (732) for the hook (74) to be embedded is formed between two adjacent saw teeth (731); when the When the lower die sleeve (2) is driven to rotate by the guide pin (71), the hook (74) rotates from a corresponding position at the bottom of one limiting groove (732) to a corresponding position at the wall of another limiting groove (732); when the lower die sleeve (2) is driven to reset by the reset assembly (6), the hook (74) reaches the bottom of another limiting groove (732) from a corresponding position at the wall of another limiting groove (732) to drive the lower die sleeve (2) to rotate and reset.

5. The rotary mold for an automated production line according to claim 4, characterized in that: The number of the saw teeth (731) is the same as the number of the teeth (721); when the hook (74) and the side wall of the saw teeth (731) are located in the same vertical plane, the guide pin (71) is located at the bottom of the V-shaped groove (722); when the hook (74) is located in the limiting groove (732), the guide pin (71) and the side wall of the V-shaped groove (722) are located in the same vertical plane.

6. The rotary mold for an automated production line according to claim 4, characterized in that: The shape of the side wall of the hook (74) is designed to fit the shape of the side wall of the sawtooth (731).

7. The rotary mold for an automated production line according to claim 5, characterized in that: The limiting grooves (732) include a plurality of first limiting grooves (7321) and second limiting grooves (7322) for controlling the reset position of the lower die sleeve (2); the first limiting grooves (7321) control the end of the lower die sleeve (2) to reset to extend out of the upper end of the lower die base (1), and the second limiting grooves (7322) control the end of the lower die sleeve (2) to reset to be flush with the lower die base (1); the first limiting grooves (7321) and the second limiting grooves (7322) are arranged alternately.

8. The rotary mold for an automated production line according to claim 2, characterized in that: A bearing (8) is provided between the lower die seat (1) and the lower die sleeve (2).

9. The rotary mold for an automated production line according to claim 4, characterized in that: A cross bar (75) is detachably connected to the lower die base (1), and the cross bar (75) extends out of the lower die base (1) and is fixedly connected to the hook (74); the die jacket (5) is cylindrical with one end closed, and the lower die base is fixedly connected to the closed end of the die jacket (5) by means of a top screw; a slot (751) is provided on the side of the cross bar (75) facing the closed end of the die jacket (5), and the top screw extends into the slot (751).

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