Valve oil seal machining device

Abstract

The utility model relates to the field of machining, and aims to solve the problem that a feeding rubber head is cut off after a valve oil seal is produced. The valve oil seal machining device is characterized in that a feeding mechanism, a cutting mechanism and a clamping mechanism are sequentially mounted on a rack of the valve oil seal machining device in the length direction, and a transmission belt and a vibration disc of the feeding mechanism act together to convey a valve oil seal to the clamping mechanism. The cutting mechanism is fixedly installed at the tail end of the conveying belt, a cutter clamping part in the cutting mechanism is located on the inclined plane of the cutting mechanism, and a trimming cutter is clamped and aligned to a discharging port of the feeding mechanism. The clamping mechanism is provided with a chuck, a stepped shaft and more than two clamping jaws, the chuck coincides with the axis of a discharging port of the feeding mechanism and moves in the axis direction of the discharging port, the chuck coincides with the stepped shaft and is connected with the stepped shaft in a clamped mode to position the valve oil seal, and the clamping jaws slide in sliding grooves in the end face of the chuck to fix the lower end of the valve oil seal. And when the chuck rotates, the cutter approaches to the valve oil seal to jointly complete cutting action.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing, and specifically relates to a valve oil seal processing device. Background Technology

[0002] Valve stem seals are a type of oil seal and an important component of the engine valve assembly. The production process involves placing pre-treated fluororubber and other materials into the barrel of an injection molding machine. Through heating and the shearing action of the screw, the material is melted into a plastic molten metal. Under appropriate injection pressure and speed, the molten plastic is injected into the mold cavity, filling the mold and forming the shape of the valve stem seal. After injection, the molten plastic in the mold cools and solidifies, forming the finished valve stem seal. After injection molding, a feed nozzle is formed at the injection port. In subsequent processing, these feed nozzles are manually removed one by one, resulting in low production efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and design a cutting device for the valve stem seal feed head, so as to realize automated production and increase production efficiency.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A valve stem seal processing device includes a frame. A feeding mechanism, a cutting mechanism, and a clamping mechanism are sequentially mounted on the frame along its length. The feeding mechanism includes a transmission belt and a vibratory plate, with the vibratory plate located on the left side of the transmission belt. The cutting mechanism is fixedly installed at the end of the transmission belt and includes trimmers and a tool clamping part. The tool clamping part is fixedly installed on the inclined plane of the cutting mechanism. The trimmers are installed on the tool clamping part and aligned with the discharge port axis of the feeding mechanism. The clamping mechanism includes a chuck, a stepped shaft, and two or more jaws. The chuck coincides with the discharge port axis of the feeding mechanism and moves closer to or further away from the discharge port along the axial direction. The chuck coincides with and is engaged with the stepped shaft axis. Two or more jaws are slidably installed on the end face of the chuck. The chuck rotates with the stepped shaft, and the cutting blade moves in the direction closer to or further away from the stepped shaft to cut the feed head.

[0006] Preferably, the chuck includes a sliding groove, and the two or more jaws include sliding blocks that are slidably mounted on the inner wall of the sliding groove.

[0007] Preferably, the clamping mechanism also includes a stripping bar, which is mounted on the stepped shaft and moves near or away from the stepped shaft.

[0008] Preferably, the feeding mechanism includes a drive belt and a correction structure, the correction structure being mounted parallel above the drive belt and comprising two baffles perpendicular to the drive belt.

[0009] Preferably, the feeding mechanism includes a vibratory plate, which is cylindrical and includes a discharge trough and a feeding plate. The tail end of the feeding plate is connected to the inlet end of the discharge trough, and the discharge end of the discharge trough is connected to the transmission belt. The inner side of the feeding plate near the axis of the vibratory plate includes a rectangular groove, and the feed head of the valve oil seal cooperates with the rectangular groove.

[0010] Preferably, the cutting mechanism includes trimmers and a tool holder, the tool holder including a threaded hole, and the tool holder being fastened to the cutting mechanism by screws through the threaded hole.

[0011] Preferably, the clamping mechanism includes a screening structure and a stepped shaft. The screening structure is located directly below the stepped shaft. The screening structure includes an inclined slide with a straight groove that can only pass through the cut-off feed head.

[0012] In summary, the embodiments of this utility model have the following beneficial effects:

[0013] 1. The valve stem seal is positioned by engaging the lower opening of the valve stem seal with a stepped shaft, ensuring the accuracy of the clamp's fixing action. The sliding block slides within the sliding groove, and its structure enables smooth movement and provides a fixing function, reducing the need for manual fixing of the valve stem seal and improving work efficiency.

[0014] 2. By moving the stripper rod on the stepped shaft, the valve stem seals are stripped after cutting, reducing the workload of workers removing the valve stem seals after cutting, avoiding injuries to workers due to the cutting blade, and improving the production efficiency of valve stem seals.

[0015] 3. Two baffles are installed above the transmission belt to reduce the risk of valve oil seals falling off the transmission belt when entering the vibratory plate outlet. This also ensures that the valve oil seals do not change the direction of their lower opening when transported on the transmission belt, thus ensuring that the lower opening of the valve oil seals is properly connected to the stepped shaft after reaching the clamping mechanism, thereby improving the stability of the device during operation.

[0016] 4. A rectangular groove is provided on the inner side of the feeding plate of the vibratory feeder. The valve stem seals are screened and fed through the feeding head that cooperates with the rectangular groove. At the same time, the lower opening of the valve stem seals can move in the direction of cooperating with the stepped shaft during transportation. The cooperation between the rectangular groove and the valve stem seal feeding head reduces the probability of the valve stem seals falling off the feeding plate due to the vibration of the vibratory feeder, thereby achieving high efficiency and improving the stability of the working process.

[0017] 5. By fastening the tool holder and the cutting mechanism with screws, the mechanical vibration and noise generated by the cutting motion can be reduced. In addition, the screw fastening connection structure is simple, reliable, and detachable, which facilitates tool disassembly, maintenance and replacement of the tool, and improves cutting efficiency and cutting quality.

[0018] 6. By setting a straight slot on the inclined slide, the mechanical vibration generated by the rotation of the device and the conveyor belt accelerates the movement of the valve oil seal and the feed rubber head on the inclined slide. The feed rubber head falls through the straight slot, realizing the screening of valve oil seal and feed rubber head. The screening process of valve oil seal and feed rubber head after removal is not required by the operator, thus improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the valve stem seal device;

[0020] Figure 2 This is a schematic diagram of the chuck portion of the clamping mechanism;

[0021] Figure 3 yes Figure 1 Enlarged view of the correction section in region A;

[0022] Figure 4 yes Figure 1 A magnified partial cross-sectional view of the vibrating disc in region B;

[0023] Figure 5 yes Figure 1 A magnified view of the cutting mechanism in region C;

[0024] Figure 6 yes Figure 1 Side sectional view of the screening system in the middle D region;

[0025] Figure 7 These are before-and-after comparison images of valve stem seal machining.

[0026] In the diagram: 1. Feeding mechanism; 11. Transmission belt; 12. Correction structure; 13. Vibrating plate; 131. Discharge chute; 132. Feeding plate; 1321. Rectangular groove; 2. Clamping mechanism; 21. Chuck; 211. Sliding groove; 22. Stepped shaft; 23. Gripper; 231. Sliding block; 24. Screening system; 241. Inclined slide; 2411. Straight groove opening; 25. Unloading rod; 3. Cutting mechanism; 31. Trimming shears; 32. Tool clamping part; 321. Threaded hole; 4. Valve oil seal; 41. Feeding head. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1-2 As shown, a valve stem seal processing device includes a clamping mechanism 2 and a cutting mechanism 3. The cutting mechanism 3 and the clamping mechanism 2 are connected by bolts, and the cutting angle of the trimmer 31 is adjusted by adjusting the angle between the clamping mechanism 2 and the cutting mechanism 3. When the valve stem seal 4 reaches the clamping mechanism 2 via the feeding mechanism 1, the chuck 21 of the clamping mechanism 2 moves towards the lower opening of the valve stem seal 4, so that the stepped shaft 22 engages with the internal stepped part of the valve stem seal 4. The sliding block 231 of the gripper 23 moves inward in the sliding groove 211 of the chuck 21, clamping the valve stem seal 4 externally and fixing it. The motor connected to the stepped shaft 22 drives the chuck 21, which is rotatably connected to the stepped shaft 22, to rotate, and the valve stem seal 4 rotates with the chuck 21. The tool clamping part 32 of the cutting mechanism 3, driven by the hydraulic system, causes the trimmer 31 to move towards the feed head of the valve stem seal 4 to complete the cutting action. After the cutting action is completed, the sliding block 231 of the gripper 23 moves outward in the sliding groove 211 of the chuck 21, releasing the valve stem seal 4. The hydraulic system pushes the stripper rod 25 closer to the stepped shaft 22, disengaging the valve stem seal 4, which has completed the cutting work, from the stepped shaft 22. Furthermore, the operation of the motor and the hydraulic system of the tool clamping part 321 can be set to be performed simultaneously in the intelligent control panel, further improving work efficiency.

[0030] like Figure 3 As shown, the calibration part of the valve stem seal processing device includes a transmission belt 11 and a calibration structure 12. The calibration structure 12 is installed above the transmission belt 11, and two baffles 121 are installed perpendicularly to both sides of the transmission belt 11 on the calibration structure 12. When the valve stem seal 4 falls into the transmission belt 11, the two baffles 121 restrict the valve stem seal 4, preventing it from sliding off the transmission belt 11. Furthermore, during the transport of the valve stem seal 4 on the transmission belt 11, the baffles ensure that the lower opening of the valve stem seal 4 can engage with the stepped shaft 22.

[0031] like Figure 4As shown, the vibratory feeder 13 of the valve oil seal processing device is cylindrical and includes a feeding plate 132 and a rectangular groove 1321 on the feeding plate 132. The valve oil seal 4 vibrates through the vibratory feeder 13 and approaches the feeding port of the feeding plate 132. The rectangular groove 1321 must cooperate with the feeding head of the valve oil seal 4 to ensure that the valve oil seal 4 is in the same direction when transported on the feeding plate 132, and to avoid the valve oil seal 4 from falling off due to the vibration of the vibratory feeder 13, thereby improving the transportation efficiency. The vibratory feeder 13 also includes a discharge groove 131, and the tail end of the feeding plate 132 is connected to the feeding end of the discharge groove 131.

[0032] like Figure 5 As shown, the cutting mechanism 3 of the valve stem seal processing device includes a trimmer 31 and a tool holder 32. The tool holder 32 is provided with a threaded hole 321. The tool holder 32 is fastened to the cutting mechanism 3 with screws through the threaded hole 321, which reduces the mechanical vibration and noise caused by the cutting motion. The screw fastening connection structure is simple, reliable and detachable, which facilitates the disassembly of the tool and the maintenance and replacement of the trimmer 31, thereby improving the cutting efficiency and cutting quality.

[0033] like Figure 6 As shown, the screening system 24 of the valve stem seal processing device includes an inclined slide 241 with a straight groove 2411. The upper end of the inclined slide 241 is located directly below the stepped shaft 22. After cutting, the cut valve stem seal 4 feed head falls onto the inclined slide 241. When the ejector rod 25 pushes the cut valve stem seal 4 off the stepped shaft 22, it falls onto the inclined slide. Due to the inclination, the feed head 41 and valve stem seal 4 slide on the inclined slide 241. When passing the straight groove 2411, the valve stem seal 4 cannot pass through the straight groove 2411 and slides directly into the bottom of the inclined slide 241. The diameter of the feed head 41 is smaller than the straight groove 2411, so it falls below the inclined slide 241. Staff only need to place the collection box at the bottom and below the inclined slide 241 to screen and collect the cut feed head 41 and valve oil seal 4. In addition, the valve oil seal 4 processing device rotates, and the mechanical vibration generated by the transmission belt can accelerate the movement of valve oil seal 4 and feed head 41 on the inclined slide 241, improving collection efficiency.

Claims

1. A valve stem seal processing apparatus, wherein the valve stem seal (4) includes a feed head (41) to be cut, characterized in that, The valve stem seal processing device includes a frame, on which a feeding mechanism (1), a cutting mechanism (3), and a clamping mechanism (2) are sequentially installed along the length direction. The feeding mechanism (1) includes a transmission belt (11) and a vibrating plate (13). The vibrating plate (13) is located on the left side of the transmission belt (11). The cutting mechanism (3) is fixedly installed at the end of the transmission belt (11). The cutting mechanism (3) includes a trimmer (31) and a tool clamping part (32). The tool clamping part (32) is fixedly installed on the inclined plane of the cutting mechanism (3). 1) Installed on the tool clamping part (32) and aligned with the discharge port axis of the feeding mechanism (1), the clamping mechanism (2) includes a chuck (21), a stepped shaft (22) and two or more jaws (23). The chuck (21) coincides with the discharge port axis of the feeding mechanism (1) and is close to or away from the discharge port in the axial direction. The chuck (21) coincides with the axis of the stepped shaft (22) and is clamped. Two or more jaws (23) are slidably installed on the end face of the chuck (21). The chuck (21) rotates with the stepped shaft (22).

2. The valve stem seal processing device according to claim 1, characterized in that, The chuck (21) includes a sliding groove (211), and the two or more grippers (23) include sliding blocks (231), which are slidably mounted on the inner wall of the sliding groove (211).

3. The valve stem seal processing device according to claim 2, characterized in that, The clamping mechanism (2) further includes a stripping rod (25), which is mounted on the stepped shaft (22) and moves near or away from the stepped shaft (22).

4. The valve stem seal processing device according to claim 1, characterized in that, The feeding mechanism (1) includes a transmission belt (11) and a correction structure (12). The correction structure (12) is installed parallel above the transmission belt (11). The correction structure (12) includes two baffles (121) that are perpendicular to the transmission belt (11).

5. The valve stem seal processing apparatus according to claim 1, characterized in that, The feeding mechanism (1) includes a vibratory plate (13), which is cylindrical. The vibratory plate (13) includes a discharge trough (131) and a feeding plate (132). The tail end of the feeding plate (132) is connected to the feed end of the discharge trough (131). The discharge end of the discharge trough (131) is connected to the transmission belt (11). The inner side of the feeding plate (132) near the axis of the vibratory plate (13) includes a rectangular groove (1321). The feed head (41) of the valve oil seal (4) is engaged with the rectangular groove (1321).

6. The valve stem seal processing apparatus according to claim 1, characterized in that, The cutting mechanism (3) includes a trimmer (31) and a tool clamping part (32). The tool clamping part (32) includes a threaded hole (321). The tool clamping part (32) is fastened to the cutting mechanism (3) with screws through the threaded hole (321).

7. The valve stem seal processing apparatus according to claim 1, characterized in that, The clamping mechanism (2) includes a screening structure (24) and a stepped shaft (22). The screening structure (24) is located directly below the stepped shaft (22). The screening structure (24) includes an inclined slide (241). The inclined slide (241) has a straight groove (2411). The straight groove (2411) can only pass through the cut-off feed head (41).

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