Butterfly valve seat sealing ring valve hole automatic punching tool

Abstract

The utility model discloses an automatic punching tool for a valve hole of a butterfly valve seat sealing ring, and belongs to the technical field of butterfly valve seat sealing ring machining. The device comprises a machine cabinet, a supporting frame is fixedly arranged on the machine cabinet, a through hole is formed in the machine cabinet, and a positioning assembly used for positioning a sealing ring to the position above the through hole is detachably installed on the machine cabinet; the device further comprises a punching device, a transverse moving assembly for driving the punching device to transversely move along the supporting frame is arranged on the supporting frame, and the punching device comprises a lifting assembly connected with the transverse moving assembly in a matched mode. When the trimming machine is used, the cutting cylinder is used for cutting the roots of trimmings, after cutting is completed, the push-pull assembly shrinks, the cutting cylinder is driven to move upwards along the tamping cylinder, the lifting assembly moves downwards, the tamping cylinder is driven to extrude the trimmings, and the trimmings on the positioning cylinder are fed into the feeding port along the slope face on the inner side of the upper end of the positioning cylinder and then enter the through hole; and finally, the flash falls into the collecting barrel, so that the flash is cut, separated and collected.

Description

An automatic punching fixture for butterfly valve seat sealing rings and valve holes Technical Field

[0001] This utility model relates to the field of butterfly valve seat sealing ring processing technology, and in particular to an automatic punching tool for butterfly valve seat sealing ring valve hole. Background Technology

[0002] The butterfly valve seat seal ring is a ring-shaped sealing element installed inside the butterfly valve body. Its main function is to ensure the sealing performance of the butterfly valve and prevent fluid leakage. The machining of the butterfly valve seat seal ring refers to a series of manufacturing processes performed on the ring-shaped sealing element used for sealing the butterfly valve.

[0003] The processing steps typically include injection molding, in which elastic materials such as rubber are injected into a mold to form a preliminary sealing ring blank; then stamping and cutting, usually using mechanical equipment to cut the sealing ring to remove excess flash, and then workers manually remove the flash from the machine and take away the sealing ring, thus separating the sealing ring from the flash.

[0004] The shortcomings of the above-mentioned existing technical solutions are that the efficiency of manually separating flash and sealing rings is low, which makes it difficult to meet the needs of large-scale production. Summary of the Invention

[0005] This utility model provides an automatic punching fixture for butterfly valve seat sealing ring valve hole, which can solve the problem that the efficiency of manually separating the flash and sealing ring in the existing flash cutting process is low and it is difficult to meet the needs of large-scale production.

[0006] An automatic punching fixture for the valve seat sealing ring valve hole of a butterfly valve includes a cabinet, on which a support frame is fixedly mounted. A through hole is provided in the cabinet, and a positioning component for positioning the sealing ring above the through hole is detachably mounted on the cabinet. The device also includes a punching device. A lateral moving component is provided on the support frame to drive the punching device to move laterally along the support frame. The punching device includes a lifting component connected to the lateral moving component. A connecting bracket is connected to the output end of the lifting component. A fixing plate is fixedly mounted at the lower end of the connecting bracket. A tamping cylinder for feeding the burr of the sealing ring into the through hole is fixedly mounted at the bottom of the fixing plate. A sliding plate is slidably fitted on the side of the tamping cylinder. A cutting cylinder for cutting off the burr of the sealing ring valve hole is fixedly mounted on the sliding plate. The cutting cylinder is sleeved on the outside of the tamping cylinder and coaxially arranged with the tamping cylinder. A push-pull component is provided on the fixing plate to drive the sliding plate to move up and down along the tamping cylinder.

[0007] As a further embodiment of this utility model: the positioning component includes a mold that can be detachably installed with the cabinet. The mold has a positioning groove for placing the sealing ring. A positioning cylinder for positioning the inner edge of the sealing ring is coaxially fixed at the bottom of the positioning groove. The upper end of the positioning cylinder can press against the lower surface of the flash. The cutting cylinder corresponds to the positioning cylinder. A feeding port that penetrates the mold and is connected to the through hole is provided inside the positioning groove. The transverse diameter of both the feeding port and the through hole is larger than that of the tamping cylinder.

[0008] As a further embodiment of this utility model: a limiting groove is provided on the cabinet, the mold is positioned and placed inside the limiting groove, and the through hole is provided inside the limiting groove and corresponds to the position of the feeding port on the mold.

[0009] As a further embodiment of this utility model, the inner edge of the upper end of the positioning cylinder is provided with a slope.

[0010] As a further embodiment of this utility model: the outer edge of the lower end of the tamping cylinder is provided with a slope that matches the inner edge of the positioning cylinder.

[0011] As a further embodiment of this utility model: the transverse component includes an electric guide rail fixedly mounted on the support frame, the lifting component includes an electric lifting device mounted on the electric guide rail, the electric lifting device is mounted on the electric guide rail, and the connecting bracket is mounted on the output end of the electric lifting device.

[0012] As a further embodiment of this utility model: the push-pull assembly includes an electric telescopic rod fixedly mounted on a fixed plate, and the telescopic end of the electric telescopic rod is fixedly connected to the fixed plate.

[0013] As a further embodiment of this utility model, handles are fixedly provided on both sides of the mold.

[0014] As a further embodiment of this utility model: a receiving bin for receiving burrs is provided inside the cabinet, and the opening of the receiving bin corresponds to the position of the through hole and the feeding port.

[0015] As a further embodiment of this utility model: the lower end of the tamping cylinder is wrapped with a flexible silicone layer.

[0016] The beneficial effects of this utility model are:

[0017] 1. In use, the transverse component moves the punching device onto the mold, while the push-pull component extends, pushing the cutting cylinder downwards so that the lower end of the cutting cylinder is lower than the lower end of the tamping cylinder. The lifting component moves the tamping cylinder and the cutting cylinder downwards, with the cutting cylinder contacting the flash first to cut the root of the flash. The positioning cylinder, located below the flash, supports the side wall of the sealing valve hole and the area below the flash, preventing displacement or rebound of the flash due to material elasticity during cutting, which would affect the cutting effect. After cutting, the push-pull component retracts, moving the cutting cylinder upwards along the tamping cylinder, so that the lower end of the cutting cylinder is away from the lower end of the tamping cylinder. The lifting component moves downwards, causing the tamping cylinder to squeeze the flash, sending the flash on the positioning cylinder along the slope of the upper inner side of the positioning cylinder into the feeding port, then into the through hole, and finally falling into the receiving hopper, thus achieving the cutting, separation, and collection of the flash.

[0018] 2. When this utility model is in use, after the cutting is completed, the lifting component retracts, driving the cutting cylinder and the tamping cylinder to move upward. Then, the horizontal moving component drives the punching device to move horizontally to the top of another set of molds to cut the sealing rings on the other set of molds. At the same time, it is convenient for the staff to collect the sealing rings after the cutting is completed, realizing the effect of cyclic cutting, thereby improving the overall cutting efficiency. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall main structure of an automatic punching tool for valve seat sealing ring valve hole of a butterfly valve provided by this utility model.

[0020] Figure 2 is a schematic diagram of the overall front view of an automatic punching fixture for valve seat sealing ring and valve hole of a butterfly valve provided by this utility model.

[0021] Figure 3 is a schematic diagram of the through hole structure of an automatic punching tool for valve hole of a butterfly valve seat sealing ring provided by this utility model.

[0022] Figure 4 is a schematic diagram of the automatic punching device for punching the valve seat sealing ring and valve hole of a butterfly valve provided by this utility model.

[0023] Figure 5 is a schematic diagram of the longitudinal section of the punching device of the automatic punching tool for the valve seat sealing ring and valve hole of a butterfly valve provided by this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cabinet; 101. Limiting groove; 102. Through hole; 2. Support frame; 3. Punching device; 301. Lifting assembly; 302. Connecting bracket; 303. Fixing plate; 304. Tamping cylinder; 305. Push-pull assembly; 306. Sliding plate; 307. Cutting cylinder; 4. Mold; 401. Positioning groove; 402. Positioning cylinder; 403. Handle; 404. Feed port; 5. Receiving bin; 6. Horizontal movement assembly. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0027] As shown in Figures 1 to 5, an automatic punching fixture for the valve seat sealing ring valve hole of a butterfly valve provided in this embodiment of the present invention includes a cabinet 1, on which a support frame 2 is fixedly mounted. The device also includes a punching device 3. As shown in Figures 3 and 4, a transverse moving assembly 6 is provided on the support frame 2 to drive the punching device 3 to move laterally along the support frame 2. The punching device 3 includes a lifting assembly 301 that is connected to the transverse moving assembly 6. The transverse moving assembly 6 includes an electric guide rail fixedly mounted on the support frame 2, or it can be an electric telescopic rod that laterally pushes the punching device 3 to move. The lifting assembly 301 includes an electric lifting device that is mounted on the electric guide rail, preferably an electric lifting platform. As shown in Figure 4, the output end of the lifting assembly 301 is connected to a connecting bracket 302. A fixing plate 303 is fixedly installed at the lower end of the connecting bracket 302. Multiple sets of tamping cylinders 304 for feeding the flash of the sealing ring into the through hole 102 are fixedly installed at the bottom of the fixing plate 303. A set of sliding plates 306 are slidably fitted on the sides of the multiple sets of tamping cylinders 304. The sliding plates 306 can move stably up and down along the tamping cylinders 304. Multiple sets of cutting cylinders 307 for cutting off the flash of the sealing ring valve hole are fixedly installed on the sliding plates 306. Each set of cutting cylinders 307 is sleeved on the outside of the corresponding tamping cylinder 304 and is coaxially arranged with the corresponding tamping cylinder 304. The fixed plate 303 is provided with a push-pull assembly 305 for driving the sliding plate 306 to move up and down along the tamping cylinder 304. The push-pull assembly 305 can be an electric telescopic rod fixedly installed on the fixed plate 303, with the telescopic end of the electric telescopic rod fixedly connected to the fixed plate 303. It can also be other devices with lifting functions that can achieve similar effects, all of which fall within the protection scope of this patent.

[0028] The cabinet 1 has multiple sets of limiting grooves 101, each set of limiting grooves 101 having four sets of through holes 102. A mold 4 is positioned and placed in the limiting groove 101. The mold 4 has four sets of positioning grooves 401 for placing the sealing ring. A positioning cylinder 402 for positioning the valve hole of the sealing ring is coaxially fixed at the bottom of each positioning groove 401, as shown in Figure 1. The upper end of the positioning cylinder 402 can press against the lower surface of the flash. Each set of cutting cylinders 307 corresponds to the position of the corresponding positioning cylinder 402. When the cutting cylinder 307 moves down, it cuts the root of the flash located above the positioning cylinder 402, thereby achieving the cutting of the flash. A feeding port 404 is provided inside the positioning groove 401, penetrating the mold 4 and communicating with the through holes 102. The transverse diameter of the feeding port 404 and the through holes 102 is larger than that of the tamping cylinder 304, which facilitates the free entry and exit of the tamping cylinder 304 into the feeding port 404 and the through holes 102. The cut flash will fall into the feed port 404 and the through hole 102 under the pushing action of the tamping cylinder 304, realizing the automatic separation of the flash from the sealing ring.

[0029] Each positioning cylinder 402 has a beveled inner edge at its upper end, and the tamping cylinder 304 has a beveled outer edge at its lower end that matches the inner edge of the positioning cylinder 402, thus facilitating the pushing of the cut-off, annular flash. It is important to note that the inner sides of the tamping cylinder 304 and the positioning cylinder 402 must not come into contact with each other, as this could cause the flash to get stuck between them. The lower end of the tamping cylinder 304 can be wrapped with a flexible silicone layer to increase the contact area between the tamping cylinder 304 and the flash, making it easier for the tamping cylinder 304 to feed the flash into the feeding port 404.

[0030] Each mold 4 is equipped with handles 403 on both sides, as shown in Figure 2, which facilitates timely replacement or maintenance of the corresponding molds by the staff and improves cutting efficiency.

[0031] The inner side of the cabinet 1 is equipped with a receiving bin 5 for receiving flash, as shown in Figure 2. The opening of the receiving bin 5 corresponds to the positions of the through hole 102 and the feed port 404. The cut flash will pass through the feed port 404 and the through hole 102 in sequence, and finally fall into the receiving bin 5. After the receiving bin 5 is full, it will send the flash into the compressor for compression, so as to facilitate remelting and injection molding.

[0032] Working principle: When in use, multiple sets of molds 4 are placed in the corresponding limiting grooves 101 in sequence, and the sealing ring is placed in the positioning groove 401 on the mold 4 so that the positioning groove 401 matches the shape of the lower end of the sealing ring. At the same time, the positioning cylinder 402 contacts and presses against the side wall of the valve hole of the sealing ring, and the upper end of the positioning cylinder 402 presses against the bottom of the flash, thereby realizing the positioning of the sealing ring and the flash.

[0033] The lateral movement component 6 moves the punching device 3 onto the mold 4. The push-pull component 305 is in an extended state, pushing the cutting cylinder 307 downward so that the lower end of the cutting cylinder 307 is lower than the lower end of the tamping cylinder 304. The lifting component 301 moves the tamping cylinder 304 and the cutting cylinder 307 downward. The cutting cylinder 307 contacts the flash first and cuts the root of the flash. The positioning cylinder 402 is located below the flash and supports the side wall of the sealing valve hole and the lower part of the flash to prevent displacement or rebound caused by the elasticity of the material when the flash is cut, which would affect the cutting effect. After the cutting is completed, the push-pull component 305 retracts, moving the cutting cylinder 307 upward along the tamping cylinder 304 so that the lower end of the cutting cylinder 307 is away from the lower end of the tamping cylinder 304. The lifting component 301 moves down, driving the tamping cylinder 304 to squeeze the flash, and sending the flash on the positioning cylinder 402 along the slope of the inner side of the upper end of the positioning cylinder 402 into the feeding port 404, then into the through hole 102, and finally falling into the collection bucket 5, thereby realizing the cutting, separation and collection of the flash.

[0034] After cutting, the lifting component 301 retracts, causing the cutting cylinder 307 and the tamping cylinder 304 to move upward. Then, the lateral moving component 6 moves the punching device 3 laterally to directly above another set of molds 4 to cut the sealing rings on the other set of molds 4. This also facilitates the collection of the cut sealing rings by the staff, achieving a cyclic cutting effect and thus improving the overall cutting efficiency.

[0035] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An automatic punching fixture for the valve seat sealing ring valve hole of a butterfly valve, comprising a cabinet (1), wherein a support frame (2) is fixedly mounted on the cabinet (1), characterized in that, The cabinet (1) has a through hole (102), and a positioning component for positioning the sealing ring above the through hole (102) is detachably installed on the cabinet (1); it also includes a punching device (3), and a transverse moving component (6) is provided on the support frame (2) to drive the punching device (3) to move laterally along the support frame (2). The punching device (3) includes a lifting component (301) that is connected to the transverse moving component (6). The output end of the lifting component (301) is connected to a connecting bracket (302), and a fixing plate is fixedly provided at the lower end of the connecting bracket (302). 303), the bottom of the fixed plate (303) is fixedly provided with a tamping cylinder (304) for feeding the burr of the sealing ring into the through hole (102), the side of the tamping cylinder (304) is slidably fitted with a sliding plate (306), the sliding plate (306) is fixedly provided with a cutting cylinder (307) for cutting off the burr of the sealing ring valve hole, the cutting cylinder (307) is sleeved on the outside of the tamping cylinder (304) and is coaxially arranged with the tamping cylinder (304), the fixed plate (303) is provided with a push-pull assembly (305) for driving the sliding plate (306) to move up and down along the tamping cylinder (304).

2. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 1, characterized in that, The positioning component includes a mold (4) that can be detachably installed with the cabinet (1). The mold (4) has a positioning groove (401) for placing the sealing ring. A positioning cylinder (402) for positioning the inner edge of the sealing ring is coaxially fixed at the bottom of the positioning groove (401). The upper end of the positioning cylinder (402) can press against the lower surface of the flash. The cutting cylinder (307) is positioned opposite to the positioning cylinder (402). A feeding port (404) is provided inside the positioning groove (401) that penetrates the mold (4) and is connected to the through hole (102). The transverse diameter of the feeding port (404) and the through hole (102) is larger than that of the tamping cylinder (304).

3. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 2, characterized in that, The cabinet (1) has a limiting groove (101) and the mold (4) is positioned inside the limiting groove (101). The through hole (102) is opened inside the limiting groove (101) and corresponds to the position of the feeding port (404) on the mold (4).

4. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 3, characterized in that, The upper inner edge of the positioning cylinder (402) is provided with a slope.

5. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 4, characterized in that, The lower outer edge of the tamping cylinder (304) is provided with a slope that matches the inner edge of the positioning cylinder (402).

6. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 1 or 4, characterized in that, The transverse component (6) includes an electric guide rail fixedly mounted on the support frame (2), the lifting component (301) includes an electric lifting device mounted on the electric guide rail, the electric lifting device is mounted on the electric guide rail, and the connecting bracket (302) is mounted on the output end of the electric lifting device.

7. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 6, characterized in that, The push-pull assembly (305) includes an electric telescopic rod fixedly mounted on a fixed plate (303), and the telescopic end of the electric telescopic rod is fixedly connected to the fixed plate (303).

8. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 2, characterized in that, Handles (403) are fixedly provided on both sides of the mold (4).

9. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 1, characterized in that, The cabinet (1) is equipped with a receiving bin (5) for receiving scrap. The opening of the receiving bin (5) corresponds to the position of the through hole (102) and the feeding port (404).

10. The automatic punching fixture for the valve seat sealing ring and valve hole of a butterfly valve as described in claim 5, characterized in that, The lower end of the tamping cylinder (304) is wrapped with a flexible silicone layer.

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