Circular knife cutting equipment for O-shaped sealing ring

By introducing a turntable and track plate structure into the O-ring circular knife cutting equipment, simultaneous cutting of raw materials on both sides is achieved, solving the problem of low cutting efficiency and improving the service life of the equipment and the stability of raw material conveying.

CN224275247UActive Publication Date: 2026-05-26BOILPEAK SEALS TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BOILPEAK SEALS TECH (JIANGSU) CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-26

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Abstract

The utility model discloses circular knife cutting equipment for O-shaped sealing rings, which relates to the technical field of O-shaped sealing rings and comprises a table body, the upper portion of the table body is rotatably connected with a turntable and fixedly connected with a track rod, a track plate is arranged on the track rod in a sliding mode, a cutting mechanism is arranged on the track plate, and the cutting mechanism is arranged on the turntable. The circular knife cutting equipment for the O-shaped sealing ring comprises a table body, a track plate is arranged on one side of the table body, a rotating disc is arranged on the track plate, a connecting rod is rotationally connected to the off-axis position of the track plate and one side of the rotating disc, two feeding ports are formed in one side of the table body, and the two feeding ports are located in the two sides of the track plate correspondingly. And when the cutting mechanism reciprocates, the raw materials on the left side and the right side can be cut, so that convenience brought by reciprocating operation of the cutting mechanism can be utilized to the greatest extent, and meanwhile, the cutting efficiency of the circular knife cutting equipment for the O-shaped sealing ring capable of cutting a plurality of raw materials at a time is improved.
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Description

Technical Field

[0001] This utility model relates to the field of O-ring technology, specifically a circular cutter cutting device for O-rings. Background Technology

[0002] An O-ring is a rubber seal with a circular cross-section. It is called an O-ring because of its O-shaped cross-section. Due to its low cost, simple manufacturing, reliable function, and easy installation, O-rings are the most common type of sealing material in mechanical designs. O-rings can be used in static applications as well as dynamic applications where there is relative movement between components, such as the shaft of a rotary pump and the piston of a hydraulic cylinder. During the production of O-rings, the raw material needs to be cut using a circular cutter.

[0003] Extensive research revealed the following: Chinese Utility Model Patent Announcement No. CN213890179U: A circular blade cutting device for producing O-ring seals, comprising a support platform, a conveyor belt at the upper end of the support platform, a sealing ring raw material tube slidably connected to the surface of the conveyor belt, a fixing block at one end of the support platform, a first support block and a second support block at the upper end of the fixing block, a fixing cover at the upper end of the first support block, and a cutting device inside the fixing cover at the upper end of the first support block. The cutting device includes a second motor housing, a slide groove, a movable plate, and a spring. The upper end of the slide groove is movably connected to the first motor housing, and a rotating shaft is penetrating through the front end of the first motor housing. A circular blade is provided on the surface of the rotating shaft.

[0004] While the above solution offers many advantages, it also has the following drawbacks: When cutting the O-ring material, it is necessary to ensure that the circular blade moves in a straight reciprocating motion. Therefore, the second motor housing of the device, which is set up so that the circular blade can move back and forth, can originally cut two sets of materials on the left and right sides in sequence, but the device can only cut a single material at a time. Therefore, it cannot make the most of the convenience of the circular blade's reciprocating motion, thereby reducing the cutting efficiency of the O-ring circular blade cutting equipment. Utility Model Content

[0005] The purpose of this invention is to provide a circular knife cutting device for O-rings to solve the problem of low cutting efficiency of existing circular knife cutting devices for O-rings.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circular knife cutting device for O-ring seals, comprising a platform, a turntable rotatably connected to the upper part of the platform, and a track rod fixedly connected thereto. A track plate is slidably arranged on the track rod, and a cutting mechanism is arranged on the track plate. A connecting rod is rotatably connected to the track plate at an off-center position on one side of the turntable. Two feeding ports are opened on one side of the platform, and the two feeding ports are respectively located on both sides of the track plate.

[0007] Preferably, a second servo motor is installed on the platform, the output shaft of the second servo motor is fixedly connected to the axis of the turntable, and the second servo motor is electrically connected to the power supply.

[0008] Preferably, the cutting mechanism includes a circular blade rotatably connected to one side of the track plate, a first servo motor is mounted on the upper part of the track plate, the output shaft of the first servo motor is fixedly connected to the axis of the circular blade, the first servo motor is electrically connected to a power supply, and the circular blade is located at the front end of the platform.

[0009] Preferably, a threaded rod is rotatably connected to one side of the turntable, and a threaded block is threadedly sleeved on the outer side of the threaded rod. The threaded block slides on the side wall of the turntable, and the end of the connecting rod is rotatably disposed on one side of the threaded block.

[0010] Preferably, a through-hole is provided on one side of the threaded block, and a limit rod is provided in the threaded hole. A linear array of slots is provided on the corresponding trajectory of the turntable relative to the limit rod. The movable end of the limit rod is adapted to the cavity of the slot.

[0011] Preferably, a guide plate is installed at the front end of the platform, the guide plate is located directly below the circular blade, and two placement slots are opened at the front end of the platform. A storage box with an open top is slidably disposed in the placement slot, and the storage box is located directly below the guide plate.

[0012] Preferably, the upper part of the platform is provided with two sets of first conveyor belts, the upper part of the platform is equipped with an installation frame, the installation frame is provided with a lifting plate that is slidably lifted and lowered, and a cylinder is installed on the installation frame. The telescopic end of the bottom of the cylinder is fixedly connected to the upper part of the lifting plate. The bottom of the lifting plate is provided with two sets of second conveyor belts, and the two sets of first conveyor belts are respectively arranged symmetrically above and below the two sets of second conveyor belts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application sets feeding ports on both sides of the cutting mechanism to transport raw materials. When the cutting mechanism reciprocates, it cuts the raw materials on the left and right sides. This maximizes the convenience brought by the reciprocating operation of the cutting mechanism and improves the cutting efficiency of the O-ring circular knife cutting equipment to cut multiple raw materials at one time.

[0015] 2. By setting up a turntable, connecting rod and track plate, this application can ensure that the motor bearing does not have to bear alternating impact loads due to frequent reversal, and avoid problems such as accelerated wear of seals due to the reciprocating motion of the piston rod of the hydraulic cylinder or air cylinder. Therefore, it effectively improves the service life of the drive equipment (motor or air cylinder, etc.).

[0016] 3. This application improves the stability of material conveying in the O-ring circular knife cutting equipment by setting up a first and second conveyor belt that cooperate with each other. This allows for slight compression or clamping of the raw material and conveying it for transport or movement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the circular knife cutting device for O-rings according to the present invention.

[0018] Figure 2 This is a frontal perspective three-dimensional schematic diagram of the platform of a circular knife cutting device for O-rings according to the present invention;

[0019] Figure 3 This is a side perspective three-dimensional schematic diagram of the platform of a circular knife cutting device for O-rings according to the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the combination of the turntable, connecting rod, and track plate of a circular knife cutting device for O-ring seals according to this utility model.

[0021] The following are the labels in the diagram: 1. Platform; 2. Turntable; 3. Track rod; 4. Track plate; 5. Cutting mechanism; 501. Circular blade; 502. First servo motor; 6. Connecting rod; 7. Feed port; 8. Second servo motor; 9. Threaded rod; 10. Threaded block; 11. Limiting rod; 12. Slot; 13. Guide plate; 14. Storage box; 15. First conveyor belt; 16. Mounting frame; 17. Lifting plate; 18. Cylinder; 19. Second conveyor belt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figure 1 - Figure 4 As shown, this utility model provides a technical solution for a circular knife cutting device for O-ring seals, including a platform 1, a turntable 2 rotatably connected to the upper part of the platform 1, and a track rod 3 fixedly connected to it. A track plate 4 is slidably arranged on the track rod 3, and a cutting mechanism 5 is arranged on the track plate 4. A connecting rod 6 is rotatably connected to the track plate 4 at the off-center of one side of the turntable 2. Two feeding ports 7 are opened on one side of the platform 1, and the two feeding ports 7 are located on both sides of the track plate 4 respectively.

[0024] The raw material is discharged from the feed port 7, and then the circular blade 501 on the cutting mechanism 5 cuts the raw material at the opening of the feed port 7. By rotating the turntable 2, the turntable 2 uses the connecting rod 6 and the track rod 3 to make the track plate 4 move back and forth in a straight line along the track rod 3. At this time, the circular blade 501 on the track plate 4 cuts the raw material on the left and right sides in turn.

[0025] like Figure 4 As shown, a second servo motor 8 is installed on the platform 1. The output shaft of the second servo motor 8 is fixedly connected to the axis of the turntable 2. The second servo motor 8 is electrically connected to the power supply.

[0026] The second servo motor 8 drives the turntable 2 to rotate.

[0027] like Figure 1 As shown, the cutting mechanism 5 includes a circular blade 501 rotatably connected to one side of the track plate 4. A first servo motor 502 is installed on the upper part of the track plate 4. The output shaft of the first servo motor 502 is fixedly connected to the axis of the circular blade 501. The first servo motor 502 is electrically connected to the power supply. The circular blade 501 is located at the front end of the platform 1.

[0028] The first servo motor 502 drives the circular blade 501 to rotate.

[0029] like Figure 4 As shown, a threaded rod 9 is rotatably connected to one side of the turntable 2, and a threaded block 10 is threadedly sleeved on the outer side of the threaded rod 9. The threaded block 10 slides on the side wall of the turntable 2, and the end of the connecting rod 6 is rotatably disposed on one side of the threaded block 10.

[0030] By rotating the threaded rod 9, the distance between the threaded block 10 and the axis of the turntable 2 can be adjusted, thereby adjusting the distance of the reciprocating linear motion of the circular blade 501.

[0031] like Figure 4 As shown, a through-hole is provided on one side of the threaded block 10, and a limit rod 11 is provided in the threaded hole. The corresponding trajectory of the turntable 2 relative to the limit rod 11 is provided with linearly arrayed slots 12, and the movable end of the limit rod 11 is adapted to the cavity of the slot 12.

[0032] By rotating the limiting rod 11, the movable end of the limiting rod 11 is inserted into the cavity of the corresponding slot 12. At the same time, the movable end of the limiting rod 11 abuts against the slot 12, increasing the friction between the threaded block 10 and the turntable 2, and simultaneously limiting the threaded block 10.

[0033] like Figure 1 and Figure 2 As shown, a guide plate 13 is installed at the front end of the platform 1. The guide plate 13 is located directly below the circular blade 501. Two placement slots are opened at the front end of the platform 1. A storage box 14 with an open top is slidably arranged in the placement slots. The storage box 14 is located directly below the guide plate 13.

[0034] The cut raw materials are stored in the storage box 14. The cut raw materials fall onto the guide plate 13 and then tilt down onto the storage box 14.

[0035] like Figure 1 - Figure 3 As shown, the upper part of the platform 1 is provided with two sets of first conveyor belts 15, the upper part of the platform 1 is provided with a mounting frame 16, the mounting frame 16 is provided with a lifting plate 17 that is slidably lifted and lowered, and a cylinder 18 is provided. The telescopic end of the bottom of the cylinder 18 is fixedly connected to the upper part of the lifting plate 17. The bottom of the lifting plate 17 is provided with two sets of second conveyor belts 19, and the two sets of first conveyor belts 15 are symmetrically arranged above and below the two sets of second conveyor belts 19 respectively.

[0036] A connecting rod is fixedly installed between the active rollers on the two first conveyor belts 15. A third servo motor is installed on the platform 1, and the output shaft of the third servo motor is fixedly connected to the end of the active roller of the first conveyor belt 15.

[0037] The cylinder 18 drives the mounting frame 16 to descend, thereby causing the second conveyor belt 19 to descend and slightly clamp the raw material with the first conveyor belt 15. Then, by rotating the belt on the first conveyor belt 15, the raw material is moved and transported.

[0038] The first conveyor belt 15 and the second conveyor belt 19 are both existing technology devices, and their specific forms and usage are not described in detail in this application.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circular knife cutting device for O-ring seals, comprising a platform (1), characterized in that: The upper part of the platform (1) is rotatably connected to a turntable (2) and fixedly connected to a track rod (3). A track plate (4) is slidably arranged on the track rod (3). A cutting mechanism (5) is arranged on the track plate (4). A connecting rod (6) is rotatably connected to the track plate (4) at the off-center of one side of the turntable (2). Two feeding ports (7) are opened on one side of the platform (1). The two feeding ports (7) are located on both sides of the track plate (4).

2. The circular knife cutting device for O-ring seals according to claim 1, characterized in that: A second servo motor (8) is installed on the platform (1), and the output shaft of the second servo motor (8) is fixedly connected to the axis of the turntable (2).

3. The circular knife cutting device for O-ring seals according to claim 1, characterized in that: The cutting mechanism (5) includes a circular blade (501) rotatably connected to one side of the track plate (4). A first servo motor (502) is mounted on the upper part of the track plate (4), and the output shaft of the first servo motor (502) is fixedly connected to the axis of the circular blade (501).

4. The circular knife cutting device for O-ring seals according to claim 1, characterized in that: A threaded rod (9) is rotatably connected to one side of the turntable (2), and a threaded block (10) is threadedly sleeved on the outer side of the threaded rod (9). The threaded block (10) slides on the side wall of the turntable (2), and the end of the connecting rod (6) is rotatably set on one side of the threaded block (10).

5. The circular knife cutting device for O-ring seals according to claim 4, characterized in that: The threaded block (10) has a through threaded hole on one side, and a limit rod (11) is threaded inside the threaded hole. The turntable (2) has a linear array of slots (12) on the corresponding trajectory of the movement of the limit rod (11). The movable end of the limit rod (11) is adapted to the cavity of the slot (12).

6. The circular knife cutting device for O-ring seals according to claim 1, characterized in that: The platform (1) is equipped with a guide plate (13) at the front end. The guide plate (13) is located directly below the circular blade (501). Two placement slots are opened at the front end of the platform (1). A storage box (14) with an open top is slidably arranged in the placement slot. The storage box (14) is located directly below the guide plate (13).

7. The circular knife cutting device for O-ring seals according to claim 1, characterized in that: The platform (1) is provided with two sets of first conveyor belts (15) on the upper part, and a mounting frame (16) is installed on the upper part of the platform (1). A lifting plate (17) is slidably mounted on the mounting frame (16), and a cylinder (18) is installed on it. The telescopic end of the bottom of the cylinder (18) is fixedly connected to the upper part of the lifting plate (17). Two sets of second conveyor belts (19) are provided at the bottom of the lifting plate (17).