Rubber seal trimming device

Abstract

The application discloses a rubber sealing piece trimming device, which comprises a blade installed on a frame, an upper feeding frame clamped on the top of the frame, a bearing shaft located at the bottom of the upper feeding frame, and an automatic discharging mechanism installed on the frame. The automatic discharging mechanism rotates the rubber sealing piece to a downward state through a fixing ring, automatically realizes discharging, and the fixing ring is located at the inner sides of the frame. The rubber sealing piece trimming device is equivalent to the existing trimming device in the background technology, and the function of automatic feeding and discharging is added. The fixing ring rotates to make the limiting plate, the base and the bearing shaft rotate. After the bearing shaft rotates to the lower side, the sealing pieces accumulated on the bearing shaft automatically slide downward. The blocking rod blocks the sealing ring in the upper feeding opening in the process of rotating the bearing shaft, so that the sealing ring in the upper feeding opening is prevented from falling off. The parts do not need to be disassembled and installed, the operation steps are reduced, and the work efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of rubber seal processing technology, specifically to a rubber seal trimming device. Background Technology

[0002] Natural rubber has high elasticity and slight plasticity at room temperature, excellent mechanical strength, low hysteresis loss, and low heat generation during repeated deformation, resulting in good flexural resistance. Furthermore, as a non-polar rubber, it has good electrical insulation properties. Rubber also possesses excellent sealing properties, and rubber seals come in various shapes, including O-rings, rotary oil seals, X-rings, and V-ring combinations. Rubber seals are produced through thermoplastic extrusion using a two-piece mold. The outer surface of the rubber seal at the mold joint often has burrs, requiring trimming.

[0003] For example, in the rubber seal trimming device disclosed in CN219505264U, the output shaft of the motor is connected to one end of the bearing shaft. A retaining ring is provided at the end of the bearing shaft near the motor. A pressure ring is slidably fitted on the other end of the bearing shaft. Multiple rubber sealing rings are fitted on the bearing shaft. A pressing mechanism is installed at the end of the bearing shaft near the pressure ring and presses the pressure ring and multiple rubber sealing rings against the retaining ring. The pressure ring is slidably fitted on the other end of the bearing shaft.

[0004] The aforementioned rubber seal trimming device limits the position of multiple rubber seals by setting up a bearing shaft and a pressure ring. After the rubber seal trimming is completed, the pressure ring on the bearing shaft and the rubber seal need to be removed. After the rubber seal is placed, the pressure ring is then installed, which is inconvenient to operate. Summary of the Invention

[0005] The purpose of this invention is to provide a rubber seal trimming device to solve the problem mentioned in the background art that the current rubber seal trimming devices on the market require lifting and lowering the pressure ring during the trimming process, which is inconvenient to operate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rubber seal trimming device, including a blade mounted on a frame, and a feeding frame engaged at the top of the frame, with a bearing shaft located at the bottom of the feeding frame. An automatic feeding mechanism is installed on the frame, which rotates the rubber seal to a downward position via a fixing ring to automatically feed the seal. The fixing ring is located on both sides inside the frame.

[0007] Preferably, a collection frame is placed on the side of the frame, and a feeding port with the same outer diameter as the rubber seal is opened on the feeding frame, and the depth of the feeding port is the same as the height of the feeding frame.

[0008] Preferably, the automatic feeding mechanism includes a fixed ring, a base and a connecting rod, a rotating rod is rotatably connected to the frame, and a connecting rod is installed on the rotating rod, with a fixed ring installed at the other end of the connecting rod;

[0009] A base is rotatably connected to the fixed ring, a guide rod is installed on the base, and a bearing shaft is sleeved on the guide rod. The diameter of the bearing shaft is the same as the inner diameter of the rubber seal. The rubber seal is a circular ring structure.

[0010] Preferably, a limiting plate is installed at the bottom of the bearing shaft. The diameter of the limiting plate is the same as the diameter of the feeding port. A through hole is opened inside the limiting plate, and the guide rod is inserted into the through hole.

[0011] Preferably, the feeding frame is equipped with fixing rods on both sides, and a limit rod is installed at the other end of the fixing rod. The limit rod and the side of the frame are both provided with sliding grooves.

[0012] Preferably, the center of the groove is on the extended line formed by the center of the two fixed rings, and an installation rod passes through the inside of the groove, with the other end of the installation rod fixed to the limiting plate.

[0013] Preferably, the side of the frame is provided with a through groove, which is connected to the sliding groove. A connecting post installed on the fixing ring is connected to a stop bar. The center of the stop bar is on the extension line of the straight line formed by the centers of the two fixing rings. The top of the stop bar is in contact with the outer side of the rubber seal, and the top of the bearing shaft is flush with the top of the stop bar.

[0014] Preferably, a servo motor is installed on the side of the frame, and a transmission rod is installed at the output end of the servo motor. Two sets of bevel gears are provided between the transmission rod and the base, and each set of bevel gears consists of two meshing bevel gears.

[0015] Preferably, the blade length is equal to the height of the bearing shaft, the trimming side of the blade is aligned with the side of the feeding port, the bearing shaft rotation angle is greater than 90 degrees and less than 180 degrees, and a collection frame is attached to the side of the frame, which collects the rubber seal.

[0016] Preferably, the feeding port is located directly above the bearing shaft, and the feeding port corresponds one-to-one with the bearing shaft.

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

[0018] 1. The present invention is equivalent to the prior art trimming device in the background art, which adds the function of automatic loading and unloading. The rotation of the fixed ring causes the limiting plate, the base and the bearing shaft to rotate. After the bearing shaft rotates to the bottom, the seals accumulated on the bearing shaft automatically slide down. During the rotation of the bearing shaft, the stop bar blocks the sealing ring inside the loading port to prevent the sealing ring inside the loading port from falling off. There is no need to disassemble and install the parts, reducing the operation steps and greatly improving the work efficiency.

[0019] 2. This invention uses a fixing rod, a limiting rod, and an installation rod. The fixing rod connects the feeding frame to the limiting plate. This trimming device allows the feeding frame and the bearing shaft to be replaced according to the specifications of the sealing ring, thereby greatly expanding the applicability of the trimming device. It eliminates the need for multiple trimming devices, significantly reducing equipment costs. The installation rod slides inside the groove without affecting the normal rotation of the fixing ring.

[0020] 3. In this invention, the through hole and the guide rod are connected by a spline. The bearing shaft is sleeved on the guide rod. During the rotation of the guide rod, the bearing shaft can be driven to rotate synchronously, thereby causing the sealing ring sleeved on the bearing shaft to rotate synchronously. The outer side of the sealing ring is always in contact with the trimming edge of the blade. The blade slides on the edge. The position of the blade can be changed according to the specifications of the sealing ring being processed. The blade trims the outer perimeter of the sealing ring. Multiple rubber sealing rings can be trimmed at the same time, which greatly improves the trimming efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0023] Figure 3 This is a top view of the bearing shaft structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the main structure of the fixing ring of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the structure after the bearing shaft and guide rod of the present invention are separated;

[0027] Figure 7 This is a schematic diagram of the stop bar structure of the present invention.

[0028] In the diagram: 1. Frame; 2. Feed port; 3. Feed frame; 4. Collection frame; 5. Fixing ring; 6. Connecting column; 7. Rotating rod; 8. Slide groove; 9. Bearing shaft; 10. Limiting rod; 11. Stop bar; 12. Blade; 13. Limiting plate; 14. Through groove; 15. Base; 16. Servo motor; 17. Transmission rod; 18. Connecting rod; 19. Bevel gear; 20. Through hole; 21. Guide rod; 22. Fixing rod; 23. Mounting rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-7 The present invention provides a technical solution:

[0031] A rubber seal trimming device includes a blade 12 mounted on a frame 1, a feeding frame 3 engaged at the top of the frame 1, a bearing shaft 9 located at the bottom of the feeding frame 3, a base 15 rotatably connected to a fixing ring 5, a guide rod 21 mounted on the base 15, and the bearing shaft 9 sleeved on the guide rod 21. The diameter of the bearing shaft 9 is the same as the inner diameter of the rubber seal. The rubber seal has a circular ring structure. A collection frame 4 is placed on the side of the frame 1. The feeding frame 3 has a feeding port 2 with the same outer diameter as the rubber seal, and the depth of the feeding port 2 is the same as the height of the feeding frame 3.

[0032] The sealing ring is placed inside the feeding port 2 and falls downward through the feeding port 2. The sealing ring is fitted onto the bearing shaft 9. The limiting plate 13 limits the lowest sealing ring until the top of the sealing ring is flush with the bottom of the feeding port 2. Then the sealing ring will no longer fall downward, realizing automatic feeding. The inner ring of the sealing ring is in contact with the outer side of the bearing shaft 9. The position of the conditional blade 12 is used to align the outer side of the sealing ring with the trimming side of the blade 12.

[0033] An automatic feeding mechanism is installed on the frame 1. The automatic feeding mechanism rotates the rubber seal to a downward position through the fixing ring 5 to automatically feed the rubber seal. The fixing ring 5 is located on both sides inside the frame 1. The automatic feeding mechanism includes the fixing ring 5, the base 15 and the connecting rod 18. A rotating rod 7 is rotatably connected to the frame 1, and the connecting rod 18 is installed on the rotating rod 7. The other end of the connecting rod 18 is installed with the fixing ring 5. The connecting post 6 installed on the fixing ring 5 is connected to the stop rod 11. The center of the stop rod 11 is on the straight line extension line formed by the centers of the two fixing rings 5. The top of the stop rod 11 is in contact with the outer side of the rubber seal, and the top of the bearing shaft 9 is flush with the top of the stop rod 11.

[0034] After the sealing ring on the bearing shaft 9 is trimmed, rotate the rotating rod 7 by hand. During the rotation of the rotating rod 7, the connecting rod 18 rotates synchronously, which in turn rotates the fixing ring 5. The base 15 rotates synchronously with the fixing ring 5, which in turn rotates synchronously with the fixing ring 5. The guide rod 21 rotates synchronously to the side, which in turn rotates the limiting plate 13 and the bearing shaft 9. The fixing ring 5 rotates synchronously with the stop rod 11, which rotates to the side. During the rotation of the stop rod 11, its outer side contacts the bottom of the feeding port 2, thus facilitating the feeding process. The sealing ring placed inside the feed port 2 is used to limit the movement and prevent the sealing ring inside the feed port 2 from falling downwards during the side rotation of the bearing shaft 9. After the bearing shaft 9 rotates to the downward position, the sealing ring on the bearing shaft 9 slides into the collection frame 4, thus collecting the sealing ring. During the rotation of the base 15, the mounting rod 23 rotates synchronously. The mounting rod 23 slides inside the slide groove 8 without affecting the normal rotation of the bearing shaft 9. Then, the rotating rod 7 is rotated in the opposite direction by hand until the mounting rod 23 slides to the point where it can no longer slide. At this time, the bearing shaft 9 remains vertical and returns to its original position.

[0035] The guide rod 21 is splined to the through hole 20. A limiting plate 13 is installed at the bottom of the bearing shaft 9. The diameter of the limiting plate 13 is the same as the diameter of the feeding port 2. A through hole 20 is opened inside the limiting plate 13. The guide rod 21 is inserted into the through hole 20. Fixing rods 22 are installed on both sides of the feeding frame 3. A limiting rod 10 is installed at the other end of the fixing rod 22. A sliding groove 8 is opened inside the limiting rod 10 and on the side of the frame 1. The center of the sliding groove 8 is on the extension line of the straight line formed by the center of the two fixing rings 5. An installation rod 23 passes through the sliding groove 8. The other end of the installation rod 23 is fixed to the limiting plate 13. A through groove 14 is opened on the side of the frame 1. The through groove 14 is connected to the sliding groove 8.

[0036] When it is necessary to replace the sealing ring of different specifications, push the mounting rod 23 upward by hand. The mounting rod 23 slides inside the slide groove 8 until it reaches the uppermost position of the slide groove 8. Pull the feeding frame 3 upward by hand. The upward movement of the feeding frame 3 causes the fixing rod 22 to move upward synchronously. During the upward movement of the fixing rod 22, the limiting rod 10 moves upward synchronously. During the upward movement of the limiting rod 10, the mounting rod 23 is pulled upward synchronously. The upward movement of the mounting rod 23 causes the limiting plate 13 to move upward synchronously. The upward movement of the limiting plate 13 causes the bearing shaft 9 to move upward synchronously. As the bearing shaft 9 moves upward, it gradually separates from the guide rod 21, disassembling the loading frame 3 and the bearing shaft 9. Then, a new workpiece is taken and inserted into the inside of the frame 1, and the loading frame 3 is snapped onto the frame 1. The new bearing shaft 9 and the limiting plate 13 are fitted onto the guide rod 21 until the bottom of the limiting plate 13 contacts the base 15 and the loading frame 3 can no longer be pushed downward, thus realizing the installation of the new workpiece. The sealing ring can be replaced according to the specifications of the processing, greatly expanding the application range of the trimming device. Different specifications of sealing rings do not require corresponding trimming devices, reducing production and processing costs.

[0037] A servo motor 16 is installed on the side of the frame 1, and a transmission rod 17 is installed at the output end of the servo motor 16. Two sets of bevel gears 19 are arranged between the transmission rod 17 and the base 15. Each set of bevel gears 19 consists of two meshing bevel gears 19. The length of the blade 12 is equal to the height of the bearing shaft 9. The trimming side of the blade 12 is aligned with the side of the feed port 2. The rotation angle of the bearing shaft 9 is greater than 90 degrees and less than 180 degrees. A collection frame 4 is attached to the side of the frame 1. The collection frame 4 collects the rubber seal. The feed port 2 is located directly above the bearing shaft 9. The feed port 2 corresponds one-to-one with the bearing shaft 9.

[0038] During trimming, the servo motor 16 runs, causing the transmission rod 17 to rotate. The rotation of the transmission rod 17 drives the vertical bevel gear 19 to rotate synchronously. The rotation of the vertical bevel gear 19 drives the horizontal bevel gear 19 to rotate. The horizontal bevel gear 19 drives the base 15 and the guide rod 21 to rotate synchronously. Since the guide rod 21 is splinedly connected to the through hole 20, the rotation of the guide rod 21 drives the limiting plate 13 and the bearing shaft 9 to rotate synchronously. The rotation of the bearing shaft 9 causes the sleeved sealing ring to rotate synchronously. The rotation of the sealing ring causes its circumference to contact the blade 12. The blade 12 trims the circumference of the sealing ring. Multiple sealing rings can be trimmed at once.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rubber seal trimming device, comprising a blade (12) mounted on a frame (1), characterized in that, The top of the frame (1) is fitted with a feeding frame (3), the bearing shaft (9) is located at the bottom of the feeding frame (3), and an automatic feeding mechanism is installed on the frame (1). The automatic feeding mechanism rotates the rubber seal to the downward position through the fixing ring (5) to automatically feed the material. The fixing ring (5) is located on both sides inside the frame (1). The automatic feeding mechanism includes a fixed ring (5), a base (15) and a connecting rod (18). A rotating rod (7) is rotatably connected to the frame (1), and a connecting rod (18) is installed on the rotating rod (7). A fixed ring (5) is installed at the other end of the connecting rod (18). A base (15) is rotatably connected to the fixed ring (5), a guide rod (21) is installed on the base (15), and a bearing shaft (9) is sleeved on the guide rod (21). A limiting plate (13) is installed at the bottom of the bearing shaft (9); The feeding frame (3) is equipped with fixing rods (22) on both sides, and a limit rod (10) is installed at the other end of the fixing rod (22). The limit rod (10) and the side of the frame (1) are both provided with sliding grooves (8). The center of the groove (8) is on the straight line extension line formed by the centers of the two fixing rings (5). The interior of the groove (8) is penetrated by an installation rod (23), and the other end of the installation rod (23) is fixed to the limiting plate (13). The side of the frame (1) is provided with a through groove (14), which is connected to the slide groove (8). The connecting post (6) installed on the fixing ring (5) is connected to the stop rod (11). The center of the stop rod (11) is on the straight line extension line formed by the centers of the two fixing rings (5). The top of the stop rod (11) is in contact with the outside of the rubber seal. The top of the bearing shaft (9) is flush with the top of the stop rod (11). The feed port (2) is located directly above the bearing shaft (9).

2. The rubber seal trimming device according to claim 1, characterized in that: A collection frame (4) is placed on the side of the frame (1), and a feeding port (2) with the same outer diameter as the rubber seal is opened on the feeding frame (3). The depth of the feeding port (2) is the same as the height of the feeding frame (3).

3. The rubber seal trimming device according to claim 1, characterized in that: The diameter of the bearing shaft (9) is the same as the inner diameter of the rubber seal, which is a ring structure.

4. The rubber seal trimming device according to claim 1, characterized in that: The diameter of the limiting plate (13) is the same as the diameter of the feeding port (2). The limiting plate (13) has a through hole (20) inside, and the guide rod (21) is inserted into the through hole (20).

5. The rubber seal trimming device according to claim 1, characterized in that: A servo motor (16) is installed on the side of the frame (1), and a transmission rod (17) is installed at the output end of the servo motor (16). Two sets of bevel gears (19) are provided between the transmission rod (17) and the base (15). Each set of bevel gears (19) consists of two meshing bevel gears (19).

6. The rubber seal trimming device according to claim 2, characterized in that: The blade (12) is equal in length to the height of the bearing shaft (9). The trimming side of the blade (12) is aligned with the side of the feed port (2). The bearing shaft (9) rotates at an angle greater than 90 degrees and less than 180 degrees. The side of the frame (1) is against a collection frame (4). The collection frame (4) collects the rubber seal.

7. A rubber seal trimming device according to claim 6, characterized in that: The feeding port (2) corresponds one-to-one with the bearing shaft (9).

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