Automatic edge trimmer for rubber sealing ring

Abstract

The invention relates to the technical field of sealing ring trimming, and discloses an automatic trimming machine for a rubber sealing ring, the automatic trimming machine comprises a trimming tool bit body and a trimming part, the trimming part comprises a rack, and the rack is rotatably provided with a rotating platform through an electric turntable frame arranged at the top of the rack; the trimming tool bit comprises a rotary platform, a trimming tool bit body is arranged on the rotary platform, a trimming part capable of being used for placing a rubber sealing ring blank is arranged above the rotary platform, the trimming tool bit body is located over the trimming part, the trimming part comprises a trimming rod, the outer surface of the circumference of the trimming rod is sleeved with bearing plates, and the two bearing plates are symmetrically distributed on the outer surface of the circumference of the trimming rod up and down. The automatic edge trimmer for the rubber sealing ring can effectively solve the problems that in the prior art, a conventional automatic edge trimmer can only achieve automatic edge trimming and burr removing treatment and cannot achieve automatic discharging, small fragments left on a clamp need to be manually blown away through an air gun, overall operation is tedious, and the production efficiency is high. And the automatic production takt is not facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of sealing ring trimming, and in particular to an automatic trimming machine for rubber sealing rings. Background Art

[0002] Rubber seals are a common sealing material used to seal the inlet and outlet of liquids, gases or dust. Due to their softness and corrosion resistance, they are often used in the sealing parts of pipes, valves, pumps and other equipment.

[0003] Put the refined rubber material into the mold according to a certain shape and size, and use pressure to fill the mold cavity and reach a certain density. Vulcanization is to cross-link the molded rubber parts under a certain temperature and pressure to obtain the required physical and mechanical properties and chemical stability. During the vulcanization of rubber sealing rings, the rubber will inevitably flow out to the parting surface and other parts to form overflow rubber edges, also known as burrs or flash. The number and thickness of the rubber edges depend on the structural accuracy of the mold. At present, most rubber sealing ring products need to be trimmed and deburred after vulcanization. Conventional automatic trimming machines can only realize automatic trimming and deburring, and cannot realize automatic unloading. In addition, small fragments remaining on the fixture need to be blown away manually with an air gun. The overall operation is cumbersome and not conducive to the automated production rhythm. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an automatic trimming machine for rubber sealing rings, which can effectively solve the problem in the prior art that conventional automatic trimming machines can only realize automatic trimming and burr removal processing, cannot realize automatic unloading, and small fragments remaining on the fixture need to be manually blown away using an air gun. The overall operation is cumbersome and is not conducive to the automated production rhythm.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides an automatic trimming machine for a rubber sealing ring, comprising:

[0009] Trimming cutter head body;

[0010] The trimming part includes a frame, the frame is rotatably mounted with a rotating platform through an electric turntable frame arranged on the top thereof, and a trimming piece for placing a rubber sealing ring blank is arranged above the rotating platform, and the trimming cutter head body is located directly above the trimming piece;

[0011] Among them, the trimming part includes a trimming rod, the circumferential outer surface of the trimming rod is sleeved with a load-bearing plate, two load-bearing plates are provided and are symmetrically distributed on the upper and lower circumferential outer surface of the trimming rod, the load-bearing plate is fixedly connected to the shaft rod through a bracket arranged on its circumferential outer surface, the upper surface of the rotating platform is fixedly connected to an axle seat that rotates with the circumferential outer surface of the shaft rod, the outer end of the trimming rod passes through the load-bearing plate and is provided with a clamp, and two of the clamps are provided and are symmetrically distributed around the trimming rod.

[0012] Furthermore, it also includes a collecting part, which includes a lifting platform. A collecting plate is arranged on the upper surface of the lifting platform. A limiting sliding rod is fixedly connected to the upper surface of the collecting plate, and the top end of the limiting sliding rod adopts an arc-shaped design.

[0013] Furthermore, a material discharge channel is provided inside the electric turntable frame and the rotating platform, the top end of the limiting slide rod passes through the material discharge channel, a driving unit connected to the upper surface of the rotating platform is provided on the outside of the shaft seat, and the output end of the driving unit is transmission-connected to the shaft rod.

[0014] Furthermore, the load-bearing plate is fixedly connected to a guide column on one side close to the clamp, and the guide column is fixedly connected to a T-shaped round rod on one end away from the load-bearing plate. A guide hole is opened on the circumferential outer surface of the T-shaped round rod. The clamp includes a clamping block, and the clamping block is internally threaded with a threaded rod that slides with the inner wall of the guide hole.

[0015] Furthermore, the clamping block is rotatably connected to a reciprocating plate via a rotating frame arranged at the bottom thereof, the interior of the reciprocating plate is slidably connected to the circumferential outer surface of the guide column, the circumferential outer surface of the reciprocating plate is fixedly connected to the outer end of the trimming rod via an ear block, and a strong spring connected to the lower surface of the T-shaped round rod is arranged on the side of the reciprocating plate close to the rotating frame.

[0016] Furthermore, the load-bearing plate is slidably connected to a smooth block via a through hole opened therein, the outer side of the smooth block is fixedly connected to the outer circumferential surface of the trimming rod, and the load-bearing plate is fixedly connected to a loading plate via a connecting plate on one side close to the T-shaped round rod.

[0017] Furthermore, a driving rod is rotatably connected inside the bracket, and the circumferential outer surface of the driving rod is sleeved with a smooth wheel that fits with the outer surface of the smooth block, and the smooth wheel and the driving rod are non-centrally installed, and a driven gear connected to the circumferential outer surface of the driving rod is provided on one side of the smooth wheel, and the bracket is meshed and connected to the driven gear through a driving motor arranged on its outside.

[0018] Beneficial Effects

[0019] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] The present invention is provided with a trimming part, and the rubber sealing ring blank is placed on the loading plate, and the smooth wheel is non-centrally installed between the driving rod. During the rotation of the driving rod, the outer circumferential surface of the smooth wheel will generate an upward thrust on the lower surface of the smooth block, and generate an upward pulling force on the rotating frame, driving the clamp block to expand to the side away from the T-shaped round rod, and the "space radius increased" surrounded by multiple groups of clamp blocks, so as to achieve rapid clamping of the rubber sealing ring blank. The driving unit is used to drive the shaft rod to rotate around the inside of the shaft seat, and the positions of the "upper" clamp and the "lower" clamp are rotated and interchanged. By rotating the smooth wheel, it can be realized synchronously that the "lower" clamp clamps the newly placed rubber sealing ring blank again, and the "upper" clamp synchronously releases the processed rubber sealing ring, and the small fragments remaining on the clamp fall synchronously with the rubber sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the collecting plate and the limiting sliding rod according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the electric turntable frame and the rotating platform being three-dimensionally separated according to an embodiment of the present invention;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of a trimming member according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure in which the driving rod, the smooth wheel, the driven gear and the smooth block are three-dimensionally separated in an embodiment of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the three-dimensional partial separation of the clamp according to an embodiment of the present invention.

[0028] The numbers in the figure represent: 1. trimming head body; 2. trimming part; 21. frame; 22. electric turntable frame; 221. material discharge channel; 23. rotating platform; 231. driving unit; 24. trimming piece; 241. trimming rod; 242. load-bearing plate; 2421. guide column; 2422. T-shaped round rod; 2423. guide hole; 2424. smooth block; 2425. loading plate; 243 , bracket; 2431, driving rod; 2432, smooth wheel; 2433, driven gear; 2434, driving motor; 244, shaft rod; 245, shaft seat; 246, clamp; 2461, clamp block; 2462, threaded rod; 2463, rotating frame; 2464, reciprocating plate; 2465, strong spring; 3, collecting part; 31, lifting platform; 32, collecting plate; 33, limiting slide bar. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] Example:

[0032] See also Figure 1-Figure 6 The present invention provides a technical solution: an automatic trimming machine for a rubber sealing ring, comprising:

[0033] Trimming cutter head body 1;

[0034] The trimming part 2 includes a frame 21, and the frame 21 is rotatably mounted with a rotating platform 23 through an electric turntable frame 22 arranged on the top thereof, and a trimming piece 24 for placing a rubber sealing ring blank is arranged above the rotating platform 23, and the trimming cutter head body 1 is located directly above the trimming piece 24;

[0035] Among them, the trimming part 24 includes a trimming rod 241, the circumferential outer surface of the trimming rod 241 is sleeved with a load-bearing plate 242, two load-bearing plates 242 are provided and are symmetrically distributed up and down on the circumferential outer surface of the trimming rod 241, the load-bearing plate 242 is fixedly connected to the shaft rod 244 through a bracket 243 arranged on its circumferential outer surface, and the upper surface of the rotating platform 23 is fixedly connected to an axle seat 245 that rotates with the circumferential outer surface of the shaft rod 244, the outer end of the trimming rod 241 passes through the load-bearing plate 242 and is provided with a clamp 246, and the clamp 246 is provided with two and is symmetrically distributed with the trimming rod 241 as the center.

[0036] It also includes a collecting part 3, which includes a lifting platform 31. A collecting plate 32 is arranged on the upper surface of the lifting platform 31. A limiting slide rod 33 is fixedly connected to the upper surface of the collecting plate 32, and the top end of the limiting slide rod 33 adopts an arc-shaped design to facilitate the rapid collection of the trimmed rubber sealing ring.

[0037] A material discharge channel 221 is provided inside the electric turntable frame 22 and the rotating platform 23. The top end of the limiting slide rod 33 passes through the material discharge channel 221. A driving unit 231 connected to the upper surface of the rotating platform 23 is provided on the outer side of the shaft seat 245, and the output end of the driving unit 231 is transmission-connected to the shaft rod 244.

[0038] A guide column 2421 is fixedly connected to one side of the load-bearing plate 242 close to the clamp 246, and a T-shaped round rod 2422 is fixedly connected to the end of the guide column 2421 away from the load-bearing plate 242. A guide hole 2423 is opened on the circumferential outer surface of the T-shaped round rod 2422. The clamp 246 includes a clamp block 2461, and the internal thread of the clamp block 2461 is connected to a threaded rod 2462 that slides with the inner wall of the guide hole 2423.

[0039] The clamping block 2461 is rotatably connected to a reciprocating plate 2464 via a rotating frame 2463 arranged at the bottom thereof. The interior of the reciprocating plate 2464 is slidably connected to the circumferential outer surface of the guide column 2421. The circumferential outer surface of the reciprocating plate 2464 is fixedly connected to the outer end of the trimming rod 241 via an ear block. A strong spring 2465 connected to the lower surface of the T-shaped round rod 2422 is arranged on the side of the reciprocating plate 2464 close to the rotating frame 2463.

[0040] The load-bearing plate 242 is slidably connected to a smooth block 2424 via a through hole provided therein, the outer side of the smooth block 2424 is fixedly connected to the outer circumferential surface of the trimming rod 241, and the load-bearing plate 242 is fixedly connected to a loading plate 2425 via a connecting plate on the side close to the T-shaped round rod 2422.

[0041] The bracket 243 is internally rotatably connected to a driving rod 2431, and a smooth wheel 2432 is sleeved on the circumferential outer surface of the driving rod 2431 and fits the outer surface of the smooth block 2424, and the smooth wheel 2432 and the driving rod 2431 are non-centrally installed, and a driven gear 2433 connected to the circumferential outer surface of the driving rod 2431 is provided on one side of the smooth wheel 2432, and the bracket 243 is meshedly connected to the driven gear 2433 via a driving motor 2434 arranged on its outer side.

[0042] refer to Figure 1-6, put the refined rubber material into the mold according to a certain shape and size, and use pressure to fill the mold cavity and reach a certain density. Vulcanization is to cross-link the molded rubber parts under a certain temperature and pressure to obtain the required physical and mechanical properties and chemical stability. During the vulcanization of rubber sealing rings, the rubber will inevitably flow out to the parting surface and other parts to form overflow rubber edges, also known as burrs or flash. The number and thickness of the rubber edges depend on the structural accuracy of the mold. At present, most rubber sealing ring products need to be trimmed and deburred after vulcanization. Conventional automatic trimming machines can only realize automatic trimming and deburring, and cannot realize automatic unloading. In addition, small fragments remaining on the fixture need to be blown away manually with an air gun. The overall operation is cumbersome and not conducive to the automated production rhythm;

[0043] In order to overcome the above-mentioned defects, the present invention designs an automatic trimming machine for rubber sealing rings.

[0044] Placement of rubber sealing ring blanks:

[0045] Initially, the driving unit 231 drives the shaft 244 on the trimming member 24 to rotate around the shaft seat 245, driving the bracket 243, the bearing plate 242, the trimming rod 241 and the clamp 246 to rotate as a whole until the clamp 246 rotates to a vertical state. Among them, the clamps 246 are provided with two and are symmetrically distributed up and down as the center of the trimming rod 241. Taking the "upper" clamp 246 as an example, when the smooth wheel 2432 no longer squeezes the lower surface of the smooth block 2424, the reciprocating plate 2464 of the "upper" clamp 246, under the combined action of its own gravity and the strong spring 2465, drives the reciprocating plate 2464 to slide downward along the outer surface of the guide column 2421, drives the trimming rod 241 to slide downward along the inside of the load-bearing plate 242, generates a downward pulling force on the rotating frame 2463, drives the clamping block 2461 to move closer to one side of the T-shaped round rod 2422, and the smooth rod part of the threaded rod 2462 slides into the guide hole 2423, and the rotating frame 2463 rotates, and the "space radius is reduced" surrounded by multiple groups of clamping blocks 2461, which is convenient for the rapid placement of the rubber sealing ring blank.

[0046] Next, the rubber seal ring blank is placed on the loading plate 2425, and the output end of the driving motor 2434 drives the driven gear 2433 to rotate, drives the driving rod 2431 to rotate around the inside of the shaft 244, and drives the smooth wheel 2432 to rotate. Since the smooth wheel 2432 and the driving rod 2431 are not installed centrally, during the rotation of the driving rod 2431, the outer surface of the circumference of the smooth wheel 2432 will generate an upward thrust on the lower surface of the smooth block 2424, drive the trimming rod 241 to slide upward along the inside of the load-bearing plate 242, generate an upward pulling force on the rotating frame 2463, drive the clamping block 2461 to expand to the side away from the T-shaped round rod 2422, and the light rod part of the threaded rod 2462 slides outward from the inside of the guide hole 2423, and the rotating frame 2463 rotates, and the "space radius enclosed by the multiple groups of clamping blocks 2461 increases", so as to achieve rapid clamping of the rubber seal ring blank.

[0047] Trimming of rubber sealing ring blanks:

[0048] After the rubber sealing ring blank and the clamp 246 are combined into a whole, the external CNC manipulator drives the trimming head body 1 to move toward one side of the rubber sealing ring blank until the trimming head body 1 moves to the part of the rubber sealing ring blank to be processed. Then, the electric turntable frame 22 drives the rotating platform 23, the trimming piece 24 and the rubber sealing ring blank to rotate synchronously and rapidly, and the trimming head body 1 is used to trim the burrs of the rubber sealing ring blank.

[0049] The trimming part 2 and the collecting part 3 cooperate to have the following advantages:

[0050] Advantage 1: Since the smooth wheel 2432 and the driving rod 2431 are not centrally mounted, the rotation of the smooth wheel 2432 can easily change the position of the clamping block 2461 on the clamp 246, thereby quickly positioning and clamping the rubber sealing ring blank. The electric turntable frame 22, the rotating platform 23 and the trimming cutter head body 1 can be used to quickly trim the rubber sealing ring blank.

[0051] Advantage 2: There are two groups of trimming parts 24, which are symmetrically distributed up and down. After the rubber sealing ring blank carried by the "upper" clamp 246 is trimmed, the driving unit 231 is used to drive the shaft rod 244 to rotate around the inside of the shaft seat 245, and the positions of the "upper" clamp 246 and the "lower" clamp 246 are rotated and interchanged, thereby realizing the automatic separation of the trimmed waste.

[0052] Advantage three, when the positions of the "upper" clamp 246 and the "lower" clamp 246 are interchanged, the rubber sealing ring carried by the "upper" clamp 246 rotates synchronously with it until the rubber sealing ring rotates to just above the limiting slide bar 33, and then, another set of rubber sealing ring blanks are placed on the "lower" clamp 246. Finally, by utilizing the rotation of the smooth wheel 2432, it can be achieved synchronously that the "lower" clamp 246 clamps the newly placed rubber sealing ring blank again, and the "upper" clamp 246 releases the processed rubber sealing ring synchronously, and the small fragments remaining on the clamp 246 fall synchronously with the rubber sealing ring, and the rubber sealing ring falls into the space surrounded by the limiting slide bar 33, realizing automatic unloading and eliminating the trouble of manual repeated disassembly.

[0053] Advantage four, the smooth wheel 2432 can be used to quickly rotate to achieve the movable adjustment of the "upper" clamp 246 and the "lower" clamp 246, which is convenient for removing impurities, or the shaft 244 can be rotated multiple times to use centrifugal force to throw out the impurities on the clamp 246.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic trimming machine for rubber sealing rings, characterized in that: include: A trimming cutter head body (1); A trimming section (2), the trimming section (2) comprising a frame (21), the frame (21) being rotatably mounted with a rotating platform (23) via an electric turntable frame (22) arranged on the top thereof, and a trimming piece (24) for placing a rubber sealing ring blank is arranged above the rotating platform (23), and the trimming cutter head body (1) is located directly above the trimming piece (24); The trimming member (24) comprises a trimming rod (241), the outer circumferential surface of the trimming rod (241) is sleeved with a load-bearing plate (242), two load-bearing plates (242) are provided and are symmetrically distributed on the upper and lower outer circumferential surface of the trimming rod (241), the load-bearing plate (242) is fixedly connected to an axle rod (244) via a bracket (243) provided on the outer circumferential surface thereof, the upper surface of the rotating platform (23) is fixedly connected to an axle seat (245) which rotates with the outer circumferential surface of the axle rod (244), the outer end of the trimming rod (241) passes through the load-bearing plate (242) and is provided with a clamp (246), and two of the clamps (246) are provided and are symmetrically distributed with the trimming rod (241) as the center.

2. The automatic trimming machine for rubber sealing ring according to claim 1, characterized in that: It also comprises a collecting part (3), the collecting part (3) comprising a lifting platform (31), the upper surface of the lifting platform (31) being provided with a collecting plate (32), the upper surface of the collecting plate (32) being fixedly connected to a limiting sliding rod (33), and the top end of the limiting sliding rod (33) is designed in an arc shape.

3. The automatic trimming machine for rubber sealing ring according to claim 2, characterized in that: The electric turntable frame (22) and the rotating platform (23) are both provided with a material discharge channel (221), the top end of the limiting slide rod (33) passes through the material discharge channel (221), and a driving unit (231) connected to the upper surface of the rotating platform (23) is provided on the outer side of the shaft seat (245), and the output end of the driving unit (231) is transmission-connected to the shaft rod (244).

4. The automatic trimming machine for rubber sealing ring according to claim 1, characterized in that: The load-bearing plate (242) is fixedly connected to a guide column (2421) on one side close to the clamp (246); the guide column (2421) is fixedly connected to a T-shaped round rod (2422) on one end away from the load-bearing plate (242); a guide hole (2423) is provided on the circumferential outer surface of the T-shaped round rod (2422); the clamp (246) comprises a clamp block (2461); the clamp block (2461) is internally threadedly connected to a threaded rod (2462) that slides with the inner wall of the guide hole (2423).

5. The automatic trimming machine for rubber sealing ring according to claim 4, characterized in that: The clamping block (2461) is rotatably connected to a reciprocating plate (2464) via a rotating frame (2463) arranged at the bottom thereof; the interior of the reciprocating plate (2464) is slidably connected to the circumferential outer surface of the guide column (2421); the circumferential outer surface of the reciprocating plate (2464) is fixedly connected to the outer end of the trimming rod (241) via an ear block; and a strong spring (2465) connected to the lower surface of the T-shaped round rod (2422) is arranged on one side of the reciprocating plate (2464) close to the rotating frame (2463).

6. The automatic trimming machine for rubber sealing ring according to claim 4, characterized in that: The load-bearing plate (242) is slidably connected to a smooth block (2424) via a through hole provided inside the load-bearing plate (242); the outer side of the smooth block (2424) is fixedly connected to the outer circumferential surface of the trimming rod (241); and the side of the load-bearing plate (242) close to the T-shaped round rod (2422) is fixedly connected to a loading plate (2425) via a connecting plate.

7. The automatic trimming machine for rubber sealing ring according to claim 6, characterized in that: The support (243) is internally rotatably connected to a driving rod (2431); the outer circumferential surface of the driving rod (2431) is sleeved with a smooth wheel (2432) that fits the outer surface of the smooth block (2424); the smooth wheel (2432) and the driving rod (2431) are non-centrally installed; one side of the smooth wheel (2432) is provided with a driven gear (2433) that is connected to the outer circumferential surface of the driving rod (2431); the support (243) is meshedly connected to the driven gear (2433) via a driving motor (2434) arranged on its outer side.

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