Deburring die for sealing ring

Abstract

The utility model relates to the field of deburring equipment, in particular to a deburring die for a sealing ring, which comprises an upper die set and a lower die set. The lower die set comprises a lower die plate, a containing groove is formed in the lower die plate, a bearing block is arranged in the containing groove, a positioning block and an arc protruding block are arranged on the top face of the bearing block, and the positioning block and the arc protruding block correspond to the through hole and the arc protrusion in position respectively, the upper die set comprises an upper die plate and a cutter assembly, and a mounting groove is formed in the bottom face of the upper die plate. A positioning cylinder is arranged in the mounting groove, a driving groove is formed in the top face of the upper die plate, a driving plate is movably arranged in the driving groove, the cutter assembly is arranged on the peripheral side of the positioning cylinder in a surrounding mode and fixedly connected with the driving plate, the arc protrusion is positioned through the arc protruding block, the attaching tightness between the sealing ring and the bearing block is guaranteed, and the through hole is positioned through the positioning block. And the accuracy of the position of the sealing ring on the bearing block is guaranteed, the bottom face of the positioning cylinder abuts against and is attached to the top of the sealing ring, and the burr removing accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of deburring equipment, specifically to a deburring mold for sealing rings. Background Technology

[0002] Deburring equipment for rubber seals is an indispensable part of rubber product manufacturing. These machines are typically designed to efficiently and precisely remove burrs, flash, and parting lines from the edges of rubber seals, ensuring product quality and appearance. For example, an automatic deburring machine for rubber seals utilizes high-speed centrifugal suspension blocking technology to achieve automated production. The equipment is simple to operate, has stable and reliable performance, and can operate continuously.

[0003] In addition, there are various types of rubber edge stripping or deburring machines on the market. Although these devices may differ in design details and performance parameters, their basic principle is to remove the burrs from rubber seals using mechanical force or physical methods. For example, some devices may use tools such as rotating blades, grinding rollers, or abrasives, and through precise control and adjustment, achieve fine grinding and deburring of the seal edges.

[0004] However, most existing deburring equipment on the market is only suitable for flat sealing rings. It cannot accurately locate and precisely remove burrs for sealing rings with raised or bent structures, and its applicability is poor. Utility Model Content

[0005] The purpose of this invention is to provide a deburring mold for sealing rings, aiming to improve the problem that most existing deburring equipment is only suitable for flat sealing rings, and cannot accurately position and remove burrs for sealing rings with raised or bent structures, resulting in poor applicability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A deburring mold for a sealing ring, wherein the sealing ring has a through hole and an arc protrusion, the arc protrusion surrounding the periphery of the through hole, and includes an upper mold assembly and a lower mold assembly.

[0008] The lower module includes a lower template with a receiving groove. A support block is provided in the receiving groove, and the size of the support block is the same as that of the sealing ring. The top surface of the support block has a positioning block and an arc-shaped protrusion, which correspond to the positions of the through hole and the arc-shaped protrusion, respectively.

[0009] The upper module includes an upper template and a cutting blade assembly. An installation groove is provided on the bottom surface of the upper template, and a positioning cylinder is provided in the installation groove. The outer side of the positioning cylinder is located in the same extension direction as the outer side of the bearing block, and the inner side of the positioning cylinder is located outside the arc protrusion.

[0010] A drive groove is provided on the top surface of the upper template, and a drive plate is movably disposed in the drive groove. The cutter assembly is arranged around the periphery of the positioning cylinder, and a connecting arm is provided on the top of the cutter assembly. The end of the connecting arm passes through the upper template and is fixedly connected to the drive plate.

[0011] Furthermore, the support block is provided with at least three demolding channels, which are distributed at intervals around the periphery of the positioning block;

[0012] The lower module also includes a demolding template, on which at least three demolding rods are fixed. The demolding rods correspond one-to-one with the demolding channels and are inserted into the demolding channels.

[0013] Furthermore, the demolding channel is formed on the arc protrusion, and the top of the demolding rod is an arc surface, the arc surface having the same curvature as the arc protrusion.

[0014] Furthermore, the lower mold assembly also includes a lower mold base and pads, the pads being fixed to both sides of the top surface of the lower mold base, and the lower mold plate being fixed to the pads.

[0015] The template is located between the pad blocks, and the two sides of the template are in contact with the sides of the pad blocks.

[0016] Furthermore, the upper template is provided with an outer guide groove, and the pad and the lower template are provided with guide channels, the outer guide groove and the guide channels are located in the same extending direction;

[0017] A lower guide post is fixed on the lower mold base. The lower guide post passes through the guide channel and extends upward into the outer guide groove.

[0018] Furthermore, the drive groove is provided with an installation position, a guide position, and a reset drive position, the guide position being located at the bottom edge of the drive groove; the connecting arm passes through the installation position and is fixedly connected to the drive plate; the reset drive position is located between adjacent installation positions.

[0019] An inner guide post is fixed on the guide position, and an inner guide groove is opened on the bottom surface of the drive plate. The inner guide post and the inner guide groove correspond one to one.

[0020] The reset drive position is provided with a reset component, and the two ends of the reset component abut against the bottom of the drive groove and the bottom surface of the drive plate.

[0021] Furthermore, the top surface of the drive plate is flush with the top surface of the upper template, the end of the inner guide post is embedded in the inner guide groove, and the distance between the end of the inner guide post and the bottom of the inner guide groove is equal to the length of the movement path of the drive plate.

[0022] Furthermore, the inner guide post is provided with a limiting ring on its circumference, and the distance between the limiting ring and the bottom surface of the drive plate is equal to the distance between the end of the inner guide post and the bottom of the inner guide groove.

[0023] Furthermore, the cutting assembly includes a blade holder and a cutting blade fixed to the bottom of the blade holder, and the connecting arm is fixed to the top of the blade holder;

[0024] The bottom of the mounting slot has a connecting channel that connects the mounting slot and the drive slot. The connecting arm passes through the connecting channel and is fixedly connected to the drive plate.

[0025] Furthermore, the bottom end of the cutter is located above the bottom surface of the positioning cylinder, and the distance between the bottom end of the cutter and the bottom surface of the positioning cylinder is less than the length of the movement path of the drive plate.

[0026] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0027] The sealing ring is placed on the support block, and the arc-shaped protrusion positions the arc-shaped protrusion to ensure a tight fit between the sealing ring and the support block. The positioning block positions the through hole to ensure the accuracy of the sealing ring's position on the support block. Furthermore, the bottom surface of the positioning cylinder abuts against the top of the sealing ring, limiting the edge of the sealing ring and ensuring the stability of the sealing ring's position during burr removal, thereby improving the accuracy of burr removal. An external drive mechanism drives the drive plate downwards, which in turn drives the cutter assembly downwards to remove the burrs around the sealing ring, achieving high cutting accuracy and efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the deburring mold for the sealing ring of this utility model;

[0029] Figure 2 This is a cross-sectional structural diagram of the deburring mold for the sealing ring of this utility model;

[0030] Figure 3 This is an enlarged schematic diagram of part A of the deburring mold for the sealing ring of the present invention.

[0031] Figure 4 This is a schematic diagram of the lower module structure of the deburring mold for the sealing ring of this utility model;

[0032] Figure 5 This is an exploded structural diagram of the lower module of the deburring mold for the sealing ring of the present invention.

[0033] Figure 6 This is a schematic diagram of the upper module structure of the deburring mold for the sealing ring of this utility model;

[0034] Figure 7 This is an exploded view of the upper module structure of the deburring mold for the sealing ring of this utility model.

[0035] Figure 8 This is a schematic cross-sectional view of the upper module of the deburring mold for the sealing ring of this utility model.

[0036] Figure 9 This is a schematic diagram of the mounting position of the deburring mold for the sealing ring described in this utility model;

[0037] Figure 10 This is a schematic diagram of the reset drive position of the deburring mold for the sealing ring of the present invention.

[0038] Figure 11 This is a schematic diagram of the guide position of the deburring mold for the sealing ring described in this utility model.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Upper module; 11. Upper template; 111. Mounting slot; 1111. Connecting channel; 112. Positioning cylinder; 113. Drive slot; 1131. Mounting position; 1132. Guide position; 1133. Reset drive position; 1134. Inner guide post; 1135. Limiting ring; 114. Drive plate; 1141. Inner guide groove; 115. Outer guide groove; 12. Cutting assembly; 121. Cutting holder; 122. Cutting blade; 13. Connecting arm;

[0041] 2. Lower module; 21. Lower template; 211. Receiving groove; 2111. Ventilation hole; 212. Support block; 2121. Positioning block; 2122. Arc protrusion; 2123. Demolding channel; 22. Demolding template; 221. Demolding rod; 2211. Arc surface; 23. Pad block; 231. Guide channel; 24. Lower mold base;

[0042] 3. Sealing ring; 31. Through hole; 32. Rounded protrusion. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0044] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0046] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Example

[0048] Please refer to Figure 1-11 As shown, this embodiment provides a deburring mold for a sealing ring. The sealing ring 3 has a through hole 31 and an arc protrusion 32, which surrounds the through hole 31.

[0049] Specifically, the deburring mold includes an upper mold assembly 1 and a lower mold assembly 2. The lower mold assembly 2 includes a lower template 21, on which a receiving groove 211 is formed. A support block 212 is provided in the receiving groove 211, and the size of the support block 212 is the same as that of the sealing ring 3. The top surface of the support block 212 is provided with a positioning block 2121 and an arc-shaped protrusion 2122, which correspond to the positions of the through hole 31 and the arc-shaped protrusion 32, respectively.

[0050] The upper module 1 includes an upper template 11 and a cutter assembly 12. A mounting groove 111 is formed on the bottom surface of the upper template 11. A positioning cylinder 112 is provided within the mounting groove 111, with its outer surface aligned with the outer surface of the support block 212 along the same extension direction. The inner surface of the positioning cylinder 112 is located outside the arcuate protrusion 32, ensuring that the bottom surface of the positioning cylinder 112 can accurately press against the top end of the sealing ring 3, thus limiting the sealing ring 3. A drive groove 113 is formed on the top surface of the upper template 11, and a drive plate 114 is movably disposed within the drive groove 113. The cutter assembly 12 surrounds the positioning cylinder 112, and a connecting arm 13 is provided at the top of the cutter assembly 12. The end of the connecting arm 13 passes through the upper template 11 and is fixedly connected to the drive plate 114. In this embodiment, there are nine support blocks 212, arranged in an array within the receiving groove 211. There are also nine positioning cylinders 112, each corresponding to one of the support blocks 212. Similarly, the number of support blocks 212 and positioning cylinders 112 can be more or less. In this embodiment, the receiving groove 211 accommodates the removed burrs, and ventilation holes 2111 are provided on the sidewall of the receiving groove 211. These ventilation holes 2111 pass through the lower template 21 and communicate with the outside, facilitating airflow between the receiving groove 211 and the outside during mold closing, thus reducing mold closing resistance.

[0051] The sealing ring 3 is placed on the support block 212. The arc-shaped protrusion 2122 positions the arc-shaped protrusion 32, ensuring a tight fit between the sealing ring 3 and the support block 212. The positioning block 2121 positions the through hole 31, ensuring the accuracy of the sealing ring 3's position on the support block 212. Furthermore, the bottom surface of the positioning cylinder 112 abuts against the top of the sealing ring 3, limiting the edge of the sealing ring 3. This ensures the stability of the sealing ring 3's position during burr removal, thereby improving the accuracy of burr removal. The external drive mechanism drives the drive plate 114 downward, which in turn drives the cutter assembly 12 downward to remove the burrs around the sealing ring 3, achieving high cutting accuracy and efficiency.

[0052] Specifically, the support block 212 has at least three demolding channels 2123, which are spaced apart around the periphery of the positioning block 2121. The lower module 2 also includes a demolding template 22, on which at least three demolding rods 221 are fixed. The demolding rods 221 correspond one-to-one with the demolding channels 2123 and pass through the demolding channels 2123. In this embodiment, there are four demolding channels 2123 and four demolding rods 221. During the upward demolding process, the four demolding rods 221 stably lift the sealing ring 3, preventing the sealing ring 3 from falling off and affecting the material feeding. Furthermore, the demolding channels 2123 are formed on the arc protrusion 32, and the top of the demolding rod 221 is an arc surface 2211, which has the same curvature as the arc protrusion 32. That is, the ejector rod 221 ejects the bottom of the arc protrusion 32 of the sealing ring 3, and the arc surface 2211 is located inside the arc protrusion 32, which increases the contact area between the ejector rod 221 and the arc protrusion 32, and further improves the stability of the sealing ring 3 during the demolding process.

[0053] Please refer to Figure 4 and Figure 5 As shown, the lower mold assembly 2 further includes a lower mold base 24 and pads 23. Pads 23 are fixed to both sides of the top surface of the lower mold base 24, the lower mold plate 21 is fixed to the pads 23, and the ejector plate 22 is located between the pads 23. The pads 23 elevate the lower mold plate 21, providing upward and downward space for the convex mold plate, thus improving the integrity of the demolding process. The two sides of the ejector plate 22 are in contact with the sides of the pads 23. The pads 23 also guide the ejector plate 22, ensuring the accuracy of its movement path.

[0054] In this embodiment, the upper mold plate 11 has an outer guide groove 115, and the pad block 23 and the lower mold plate 21 have guide channels 231. The outer guide groove 115 and the guide channel 231 are located in the same extending direction, that is, the opening of the outer guide groove 115 faces downward and is connected to the guide channel 231. A lower guide post (not shown in the figure) is fixed on the lower mold base 24. The lower guide post passes through the guide channel 231 and extends upward into the outer guide groove 115. The lower guide post guides the upper mold plate 11 to ensure the accuracy of the mold closing process of the upper mold assembly 1 and the lower mold assembly 2.

[0055] Please refer to Figure 9-11As shown, the drive groove 113 is provided with an installation position 1131, a guide position 1132, and a reset drive position 1133. The guide position 1132 is located at the bottom edge of the drive groove 113. In this embodiment, there are eight guide positions 1132, which are distributed in pairs at the bottom edge of the drive groove 113. An inner guide post 1134 is fixed on the guide position 1132. An inner guide groove 1141 is formed on the bottom surface of the drive plate 114, and the inner guide post 1134 and the inner guide groove 1141 correspond one-to-one. The eight inner guide posts 1134 guide the drive plate 114 at the edge of the drive plate 114 and limit the drive plate 114, ensuring that the drive plate 114 maintains vertical movement during downward and upward movement, thus ensuring the accuracy of the yarn cutting process.

[0056] Please refer to Figure 6-8 As shown, the connecting arm 13 passes through the mounting position 1131 and is fixedly connected to the drive plate 114; the reset drive position 1133 is located between adjacent mounting positions 1131. The reset drive position 1133 is provided with a reset element (not shown in the figures), the two ends of which abut against the bottom of the drive groove 113 and the bottom surface of the drive plate 114. In this embodiment, the reset element is a spring. The drive plate 114 descends to compress the reset element, performing a burr removal process. After the burr removal is completed, the reset element provides a reverse thrust to the drive plate 114, reducing the drive energy output of the external drive mechanism to the drive plate 114 and reducing energy consumption.

[0057] In this embodiment, the top surface of the drive plate 114 is flush with the top surface of the upper template 11, and the end of the inner guide post 1134 is embedded in the inner guide groove 1141. In the initial state, the end of the inner guide post 1134 is located in the inner guide groove 1141, so that the inner guide post 1134 can guide and limit the guide plate throughout the movement of the drive plate 114. This avoids the drive plate 114 from tilting when it comes close to the inner guide groove 1141 due to the separation of the inner guide post 1134 and the inner guide groove 1141, which would cause the drive plate 114 to collide with the inner guide post 1134 and affect the burr removal process. Furthermore, the distance between the end of the inner guide post 1134 and the bottom of the inner guide groove 1141 is equal to the length of the movement path of the drive plate 114. That is, under the drive of the external drive mechanism, the drive plate 114 drives the cutter assembly 12 to move downward to remove the burrs. When the drive plate 114 moves to the lowest position, the end of the inner guide post 1134 and the bottom of the inner guide groove 1141 abut against each other. At the same time, the inner guide post 1134 limits the stroke of the drive plate 114 to avoid the drive plate 114 from traveling too far, which would cause the end of the cutter assembly 12 to collide with the bottom of the receiving groove 211 and damage the cutter 122.

[0058] Please refer to Figure 7 and Figure 8As shown, furthermore, a limiting ring 1135 is provided around the inner guide post 1134. The distance between the limiting ring 1135 and the bottom surface of the drive plate 114 is equal to the distance between the end of the inner guide post 1134 and the bottom of the inner guide groove 1141. The limiting ring 1135 is located outside the drive plate 114, further limiting the bottom surface of the drive plate 114 to ensure the accuracy of the stroke of the drive plate 114.

[0059] Specifically, the cutting assembly 12 includes a blade holder 121 and a cutting blade 122 fixed to the bottom of the blade holder 121, with a connecting arm 13 fixed to the top of the blade holder 121. A connecting channel 1111 is provided at the bottom of the mounting groove 111, connecting the mounting groove 111 and the drive groove 113. The connecting arm 13 passes through the connecting channel 1111 and is fixedly connected to the drive plate 114. In this embodiment, there are four connecting channels 1111 and four connecting arms 13. The four connecting channels 1111 are equally spaced around the periphery of the positioning cylinder 112. The connecting arms 13 connect the blade holder 121 and the cutting blade 122 from four directions, ensuring that the end face of the cutting blade 122 remains horizontal during the upward and downward movement of the cutting assembly 12, thus ensuring the accuracy of burr removal. Similarly, the number of connecting arms 13 and connecting channels 1111 can also be three or more.

[0060] Furthermore, the bottom end of the cutter 122 is located above the bottom surface of the positioning cylinder 112, so that the movement process of the cutter 122 includes the process of approaching the burr and the process of removing the burr. During the process of approaching the burr, the external drive mechanism can better improve the acceleration of the cutter 122, thereby accurately removing the burr. The distance between the bottom end of the cutter 122 and the bottom surface of the positioning cylinder 112 is less than the movement path length of the drive plate 114, thereby ensuring that when the drive plate 114 descends to the lowest position, the cutter 122 can protrude from the positioning cylinder 112 and completely remove the burr.

[0061] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A deburring mold for a sealing ring, wherein the sealing ring has a through hole and an arc-shaped protrusion surrounding the periphery of the through hole, characterized in that, Includes an upper module and a lower module; The lower module includes a lower template with a receiving groove. A support block is provided in the receiving groove, and the size of the support block is the same as that of the sealing ring. The top surface of the support block has a positioning block and an arc-shaped protrusion, which correspond to the positions of the through hole and the arc-shaped protrusion, respectively. The upper module includes an upper template and a cutting blade assembly. An installation groove is provided on the bottom surface of the upper template, and a positioning cylinder is provided in the installation groove. The outer side of the positioning cylinder is located in the same extension direction as the outer side of the bearing block, and the inner side of the positioning cylinder is located outside the arc protrusion. A drive groove is provided on the top surface of the upper template, and a drive plate is movably disposed in the drive groove. The cutter assembly is arranged around the periphery of the positioning cylinder, and a connecting arm is provided on the top of the cutter assembly. The end of the connecting arm passes through the upper template and is fixedly connected to the drive plate.

2. The deburring mold for the sealing ring according to claim 1, characterized in that: The support block has at least three demolding channels, which are spaced apart around the periphery of the positioning block; The lower module also includes a demolding template, on which at least three demolding rods are fixed. The demolding rods correspond one-to-one with the demolding channels and are inserted into the demolding channels.

3. The deburring mold for the sealing ring according to claim 2, characterized in that: The demolding channel is located on the arc protrusion, and the top of the demolding rod is an arc surface with the same curvature as the arc protrusion.

4. The deburring mold for the sealing ring according to claim 2, characterized in that: The lower module assembly also includes a lower mold base and pads. The pads are fixed to both sides of the top surface of the lower mold base, and the lower mold plate is fixed to the pads. The template is located between the pad blocks, and the two sides of the template are in contact with the sides of the pad blocks.

5. The deburring die for the sealing ring according to claim 4, characterized in that: The upper template has an outer guide groove, and the pad and the lower template have guide channels. The outer guide groove and the guide channels are located in the same extending direction. A lower guide post is fixed on the lower mold base. The lower guide post passes through the guide channel and extends upward into the outer guide groove.

6. The deburring die for the sealing ring according to claim 1, characterized in that: The drive slot is provided with an installation position, a guide position, and a reset drive position. The guide position is located at the bottom edge of the drive slot. The connecting arm passes through the installation position and is fixedly connected to the drive plate. The reset drive position is located between adjacent installation positions. An inner guide post is fixed on the guide position, and an inner guide groove is opened on the bottom surface of the drive plate. The inner guide post and the inner guide groove correspond one to one. The reset drive position is provided with a reset component, and the two ends of the reset component abut against the bottom of the drive groove and the bottom surface of the drive plate.

7. The deburring die for the sealing ring according to claim 6, characterized in that: The top surface of the drive plate is flush with the top surface of the upper template. The end of the inner guide post is embedded in the inner guide groove. The distance between the end of the inner guide post and the bottom of the inner guide groove is equal to the length of the movement path of the drive plate.

8. The deburring die for the sealing ring according to claim 7, characterized in that: The inner guide post is provided with a limiting ring on its circumference. The distance between the limiting ring and the bottom surface of the drive plate is equal to the distance between the end of the inner guide post and the bottom of the inner guide groove.

9. The deburring die for the sealing ring according to claim 1, characterized in that: The cutting assembly includes a blade holder and a cutting blade fixed to the bottom of the blade holder, and the connecting arm is fixed to the top of the blade holder; The bottom of the mounting slot has a connecting channel that connects the mounting slot and the drive slot. The connecting arm passes through the connecting channel and is fixedly connected to the drive plate.

10. The deburring die for the sealing ring according to claim 9, characterized in that: The bottom end of the cutter is located above the bottom surface of the positioning cylinder, and the distance between the bottom end of the cutter and the bottom surface of the positioning cylinder is less than the length of the movement path of the drive plate.

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