TWI566855B - The manufacturing method of the chained bush - Google Patents

Description

Method for manufacturing slotted bushing of chain

The present invention relates to a chain, and more particularly to a method of manufacturing a slotted bushing of a chain.

Generally, a chain is usually designed by a plurality of serially connected units connected in a loop shape, and each of the series connecting units substantially comprises: two spaced inner chain pieces, and two pieces respectively located outside the inner chain pieces. An outer chain piece, a chain shaft through which the inner chain pieces are respectively connected to the outer chain pieces, and a bushing for coupling the inner chain pieces and sleeved on the outer periphery of the chain shaft, and A chain roll that is placed around the periphery of the bushing.

The bushing and the inner chain pieces form a combined body, and the chain shaft and the outer chain pieces are connected to form a linkage body, and the linkage body can be pivoted with respect to the combination body, thereby allowing the chain to have The characteristics of the bend. Since the chain of the coaxial bushing and the chain shaft are relatively pivoted to generate friction during the bending process, the chain is generally added with lubricating oil at the joint portion during use to prevent excessive wear between the components, so that It works more smoothly.

However, since the inner peripheral surface of the conventional bushing is a smooth and flat surface, it is easy to add lubricating oil to the joint portion of the chain. Loss and overflow, the lubrication effect is not easy to last, often resulting in rapid wear of the chain components and shortened service life. In addition, the bushing can be roughly divided into a seamed bushing and a seamless bushing according to the forming method, and the inventor of the present invention has developed and improved the manufacturing method of the seamed bushing so that the inner circumference of the seamed bushing is made. The recess is provided with an oil storage tank, which can store lubricating oil and maintain lubrication effect, so as to provide consumers with a choice of opportunities.

Accordingly, it is an object of the present invention to provide a method of manufacturing a seamed bushing which is easy to process and which can reduce costs and enhance market competitiveness.

Thus, the method for manufacturing a slotted bushing of the chain of the present invention comprises using a bushing forming machine to form a sheet of a plurality of slit bushings, the bushing forming machine comprising a press groove device, the press groove device comprising a stamping seat located on the opposite side of the sheet and movable relative to each other and an abutting seat having a plurality of ribs spaced apart and extending toward a processing surface of the sheet, and the manufacturing method comprises: conveying a step of conveying the sheet along a production line direction; and a step of pressing the groove to stop the movement of the sheet, and the abutting seat of the press forming device of the bushing forming machine is moved closer to the punching seat, and then through the punching The ribs of the seat punch the machined surface of the sheet into a plurality of oil storage grooves spaced apart from each other.

Further, the present invention provides a method for manufacturing a slotted bushing of another chain by using a bushing forming machine to form a single plate into a plurality of slotted bushings, the bushing forming machine comprising a press groove device, the grooved groove Device includes a grooving wheel and a feed wheel respectively rotatably opposite to the sheet and rotatable to move the sheet in a line direction, the grooving wheel having a plurality of spaced intervals and extending toward a processing surface of the sheet a rib, and the manufacturing method comprises: a conveying groove step, the squeezing wheel and the feeding wheel rotate to drive the plate to move along the line direction, and the plate is reinforced by the rib of the grooving wheel A plurality of oil storage grooves spaced apart from each other are rolled on the machined surface.

The invention has the effect that the invention forms an oil storage groove on the processing surface of the plate material by imprinting, which is not only not found in the existing manufacturing method of the slotted bushing, but also the above means can make the processing and molding easy and the cost can be reduced. Improve market competitiveness.

1‧‧‧ plates

11‧‧‧Processing surface

12‧‧‧ Back

2‧‧‧ bushing body

21‧‧‧ edge

3‧‧‧Sewed bushing

31‧‧‧ inner surface

32‧‧‧ outer surface

33‧‧‧ oil storage tank

4‧‧‧Blinding machine

41‧‧‧ Positioning device

411‧‧‧ body

412‧‧‧ positioning slot

42‧‧‧clotting device

421‧‧‧Pressing seat

422‧‧ ‧ ribs

423‧‧‧ by seat

424‧‧‧Indenter

425‧‧‧Slot wheel

426‧‧ ‧ ribs

427‧‧‧ Feeding wheel

43‧‧‧Conveyor

431‧‧‧Transport wheel

44‧‧‧ Cutting device

441‧‧‧ fixed seat

442‧‧‧cut end face

443‧‧‧ 座座

444‧‧‧

445‧‧‧ cutting seat

446‧‧‧Molding

447‧‧‧ Side knife department

448‧‧‧ molding space

449‧‧‧fixed slot

61‧‧‧ Positioning steps

62‧‧‧Transporting tank step

63‧‧‧ cutting steps

71‧‧‧Transportation steps

72‧‧‧ Positioning steps

73‧‧‧Slotting step

74‧‧‧ cutting steps

81‧‧‧ axis

82‧‧‧Production direction

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is one of the sewed linings produced by the method of manufacturing a slotted bushing of the chain of the present invention. Fig. 2 is a schematic view of a manufacturing process illustrating a process of using a bushing forming machine in a first preferred embodiment of the method for manufacturing a slotted bushing of the chain of the present invention; and Fig. 3 is a perspective view showing the bushing forming Figure 4 is a block diagram of a manufacturing process of the first preferred embodiment; Figure 5 is a top plan view showing a plurality of embossed surfaces of the plate The state of the oil reservoirs that are spaced apart from each other; Figure 6 is a schematic view of a manufacturing process showing a second preferred embodiment of the method for manufacturing a slotted bushing of the chain of the present invention using a bushing forming machine; Figure 7 is a manufacturing of the second preferred embodiment Figure 8 is a perspective view of another slitted bushing made by the method for manufacturing a slotted bushing of the chain of the present invention; Figure 9 is a schematic view of a manufacturing process showing the seamed bushing of the chain of the present invention. A third preferred embodiment of the manufacturing method uses a process of a bushing forming machine; FIG. 10 is a top plan view showing a state in which a plurality of oil storage grooves are embossed on one working surface of a sheet; and Figure 11 is a schematic view of a manufacturing process showing a process of using a bushing forming machine in a fourth preferred embodiment of the method of manufacturing a slotted bushing of the chain of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figure 1, one of the slotted bushings 3 of the present invention extends longitudinally along an axis 81 having an inner surface 31 and an outer surface 32 about the axis 81 opposite each other inside and outside. And a plurality of oil reservoirs 33 extending longitudinally along the axis 81 and recessed parallel to each other on the inner surface 31. In the present embodiment, the circumferential length of the inner surface 31 about the axis 81 may be 8 to 12 times the width of the oil reservoirs 33, and the number of the oil reservoirs 33 of the present embodiment is six.

Referring to Figures 1, 2, and 3, a first comparison of the manufacturing method of the present invention In a preferred embodiment, a plate forming machine 4 is used to form a sheet of material 1 into a plurality of slitted bushings 3 as shown in FIG. 1 (only one of which is shown in the drawings). Set 3 is an example.

The sheet material 1 of the embodiment is a strip extending in a long direction. And having a processing surface 11 and a back surface 12 opposite to each other. The bushing forming machine 4 of the present embodiment includes a positioning device 41, a press groove device 42, a conveying device 43, and a cutting device 44 which are sequentially arranged along a line direction 82.

The positioning device 41 includes a seat body 411, and a The seat body 411 defines a positioning groove 412 extending in the direction of the line direction 82, and the positioning groove 412 allows the plate material 1 to pass through without offset. The press groove device 42 includes a pair of abutment 423 and a punching seat 421 which are respectively located on the upper and lower sides of the sheet material 1 and are movable relative to each other. The stamping seat 421 is located below the working surface 11 and has a plurality of ribs 422 arranged at intervals and extending toward the processing surface 11 of the sheet material 1. The abutment seat 423 is located above the back surface 12 and has a head 424 that can be driven to move against the sheet material 1 against the back surface 12. In practice, there is no need to limit the form in which the punching seat 421 and the abutting seat 423 are relatively moved.

The conveying device 43 comprises two clamps respectively on the sheet 1 A conveying wheel 431 that is movable on the upper and lower sides and that moves the sheet material 1 in the line direction 82. The cutting device 44 includes a fixing seat 441 through which the sheet material 1 can pass without offset, and a cutting seat 445 and a blocking seat 443 which are respectively located on the upper and lower sides of the sheet material 1 and are movable relative to each other.

The fixing seat 441 has a cutting end surface 442, and a A fixing groove 449 extending in the direction of the line 82 and extending through the cutting end surface 442, the fixing groove 449 is provided for the sheet material 1 to pass without offset.

The cutting seat 445 is located above the back surface 12 and can be driven The sheet 1 is cut while moving toward the sheet 1. The cutting seat 445 has a mold portion 446, two side knife portions 447 extending downward from the mold portion 446, and a molding defined by the mold portion 446 and the side cutter portions 447 with the opening facing downward. Space 448. One of the side cutter portions 447 of the cutting seat 445 is adjacent to the shear end surface 442.

Referring to Figures 1, 2, 4, and 5, the manufacturing method of this embodiment includes:

(1) Conveying step 71: The conveying wheel 431 passing through the conveying device 43 is rotatably held against the opposite side of the sheet material 1, and the sheet material 1 is conveyed along the line direction 82.

(2) Positioning step 72: When the plate 1 passes through the positioning groove 412 of the positioning device 41, the plate 1 is restricted by the positioning groove 412, so that the plate 1 can only advance along the line direction 82. The left and right offset or the up and down offset does not occur, thereby increasing manufacturing precision and manufacturing yield in the subsequent steps.

(3) Pressure groove step 73: When the sheet material 1 continues to move along the line direction 82 and passes through the pressure groove device 42, the sheet material 1 is first stopped, and the pressure head 424 of the abutment seat 423 is driven toward The plate 1 is moved such that the ram 424 and the ridge 422 of the punching seat 421 are respectively clamped against the back surface 12 of the sheet material 1 and the processing surface 11 so that the ribs 422 are on the processing surface. The oil reservoirs 33 spaced apart from each other are punched out 11 as shown in FIG.

It should be noted that the extension of the rib 422 of this embodiment The longitudinal direction of the oil sump 33 formed by the grooving device 42 is also arranged in parallel with each other in the direction perpendicular to the line direction 82.

(d) cutting step 74: the last press step 73 in the order While the sheet 1 stops moving forward, the striker portion 444 of the retaining seat 443 is located below the machined surface 11. Then, the cutting seat 445 is driven to move toward the plate 1. At this time, the cutting seat 445 moves downward along the cutting end surface 442 of the fixing seat 441, thereby cutting the plate 1 at the same time. The portion 447 continues to move downward to force the two end edges 21 of the cut sheet 1 to move downward. By the cooperation of the mold portion 446 and the collision portion 444, the cut sheet 1 is bent to form a sheet. The bushing body 2 has a C-shaped cross section.

After that, the cutting seat 445 will move upwards away from the collision portion. 444, the bushing body 2 can be removed from the striker portion 444, and a closing step of joining the end edges 21 is performed, that is, the manufacturing process of the seamed bushing 3 of the present embodiment is completed. It should be noted that since the aforementioned closing step is not an improvement of the present invention, it will not be described in detail.

It is further explained that, in the cutting step 74 of the embodiment, the sheet material 1 may be simply cut out into a sheet-like plate body, and then a bending step is performed to wind the cut sheet. 1. The bushing body 2 of this embodiment can also be obtained.

It should be noted that, in the conveying step 71 of the embodiment, the sheet material 1 is conveyed intermittently, and the oil storage tanks 33 are conveyed each time. After the moving distance of 10 times the width, the conveying is stopped first, and the pressing device 42 is used to press the plate 1 , and the cutting device 44 cuts the sheet 1 into the sleeve body 2 . Thus, the slit bushing 3 having the inner surface 31 having a circumferential length of 10 times the width of the oil reservoirs 33 can be obtained.

Referring to Figures 1, 2, and 4, as can be seen from the above description, the present embodiment The manufacturing method mainly forms an oil sump 33 on the processing surface 11 of the plate material 1 in the press step 73, which is not only easy to process and can reduce the cost and enhance the market competitiveness, and the foregoing means are not found in the existing In the method of manufacturing the slitted bushing 3. Therefore, when the slitted bushing 3 obtained in the embodiment is used as the chain of the member, the lubricating oil can be stored through the oil reservoirs 33, so that the lubrication effect of the chain is more durable and the wear resistance is improved, so that the chain is made. It is smoother during operation and extends the life of the chain.

Referring to Figures 1, 6, and 7, a second comparison of the manufacturing method of the present invention The preferred embodiment is substantially identical to the first preferred embodiment. The bushing forming machine 4 of the second preferred embodiment also includes a positioning device 41, a pressure groove device 42 and a cutting device 44. The cutting device 44 also has a mounting seat 441, a retaining seat 443 and a cutting seat 445.

The difference between the two is: the components of the bushing forming machine 4 The means for transporting the sheet material 1 and means for embossing the oil reservoirs 33 on the processing surface 11 of the sheet material 1.

The pressing device 42 of the embodiment includes a clamping plate respectively A feed wheel 427 and a grooving wheel 425 of the upper and lower sides of the 1 and which are rotatable to move the sheet 1 in the line direction 82. The grooving wheel 425 is located on the plate Below the machined surface 11 of the material 1, there are a plurality of ribs 426 arranged at intervals and extending toward the processing surface 11. The feed wheel 427 is located above the back side 12 of the sheet material 1.

The manufacturing method of this embodiment includes:

(a) positioning step 61: when the sheet 1 passes through the positioning device When the positioning groove 412 of the 41 is disposed, the plate 1 is restrained by the positioning groove 412, so that the plate 1 can only advance along the line direction 82 without left-right offset or up-and-down offset, thereby increasing the follow-up Manufacturing precision and manufacturing yield at the time of the step.

(2) conveying the pressure tank step 62: passing the pressure tank device 42 The grooving wheel 425 and the feeding wheel 427 are respectively rotatably clamped to the sheet material 1, and the sheet material 1 is conveyed along the line direction 82. The nip wheel 425 and the feeding wheel 427 rotate to drive the sheet material 1 forward. At the same time, the ribs 422 of the grooving wheel 425 roll out the oil sump 33 on the working surface 11.

(3) Cutting step 63: when the sheet 1 continues along the line When the direction 82 is moved and passed through the cutting device 44, the plate member 1 can be cut and wound into the bushing body 2 through the cutting device 44. Since the cutting step 63 is the same as the foregoing first preferred embodiment, it will not be described again.

It should be noted that this embodiment is in the conveying pressure tank step 62. The sheet 1 is also conveyed in an intermittent manner, and after each transporting the moving distance of the width of the oil storage tank 33 by 10 times, the conveying is stopped first, and the cutting device 44 cuts the sheet 1 into a roll. In the bushing body 2, the slit bushing 3 having a circumferential length of the inner surface 31 of 10 times the width of the oil reservoirs 33 can be obtained.

Since the embodiment is in the conveying pressure step 62, it is rolling The manner of pressing forms the oil sump 33 on the processing surface 11 of the sheet material 1. This method also has the advantages of easy processing and molding, which can reduce cost and enhance market competitiveness, and the method is also not found in the existing slotted bushing 3 . In the manufacturing method.

In addition, since the press tank device 42 has both transport and The function of rolling, so the bushing forming machine 4 of the present embodiment can omit the conveying device 43 (see Fig. 2). From this, it is understood that the apparatus used in the manufacturing method of the present embodiment is relatively compact, and thus the manufacturing cost can be reduced.

Referring to Figure 8, another slitted bushing 3 made by the present invention, The slotted bushing 3 also has an inner surface 31 and an outer surface 32 opposite to each other inside and outside, and a plurality of oil reservoirs 33 recessed in parallel on the inner surface 31. However, the direction in which the oil sump 33 of the slotted bushing 3 extends is not parallel to the axis 81 of the slotted bushing 3.

Referring to Figures 8, 9, and 10, a third method of the manufacturing method of the present invention The preferred embodiment is substantially the same as the first preferred embodiment. The difference between the two is that the extending direction of the ribs 422 of the punching seat 421 of the embodiment is not perpendicular to the line direction 82 and is parallel to each other. Therefore, in the step of pressing, the oil reservoirs 33 are embossed on the processing surface 11 of the sheet material 1 through the ribs 422, and the direction of extension of the oil reservoirs 33 is correspondingly not perpendicular to the production line. The directions 82 are spaced apart from each other in parallel. Then, the slitting bushing 3 as shown in Fig. 8 can be obtained by performing the steps of cutting, winding, closing, etc., and will not be described in detail.

Referring to Figures 8 and 11, a fourth preferred embodiment of the manufacturing method of the present invention The embodiment is substantially the same as the second preferred embodiment, and the difference between the two is that the extending direction of the ribs 426 of the grooving wheel 425 of the present embodiment is not perpendicular to the line direction 82 and is spaced apart from each other in parallel. Therefore, the oil reservoirs 33 are formed in the step of transporting the grooves, and the extending directions thereof are also arranged in parallel with each other without being perpendicular to the line direction 82. Then, the slitting bushing 3 as shown in Fig. 8 can be obtained by performing the steps of cutting, winding, closing, etc., and will not be described in detail.

In summary, the present invention is embossed in the form of the sheet. The formation of the oil sump on the working surface is not only found in the conventional method for manufacturing the seamed bushing, but the above-mentioned means can also facilitate the processing and molding, thereby reducing the cost and improving the market competitiveness. By storing the lubricating oil through the sump of the slotted bushing, the lubrication effect of the chain can be made longer and the wear resistance can be improved, the chain can be operated more smoothly, and the service life of the chain can be prolonged.

However, the above is only the preferred embodiment of the present invention. The scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the present invention in the scope of the invention and the scope of the patent specification are still within the scope of the invention.

1‧‧‧ plates

11‧‧‧Processing surface

12‧‧‧ Back

2‧‧‧ bushing body

21‧‧‧ edge

3‧‧‧Sewed bushing

31‧‧‧ inner surface

4‧‧‧Blinding machine

41‧‧‧ Positioning device

411‧‧‧ body

412‧‧‧ positioning slot

42‧‧‧clotting device

421‧‧‧Pressing seat

422‧‧ ‧ ribs

423‧‧‧ by seat

424‧‧‧Indenter

43‧‧‧Conveyor

431‧‧‧Transport wheel

44‧‧‧ Cutting device

441‧‧‧ fixed seat

442‧‧‧cut end face

443‧‧‧ 座座

444‧‧‧

445‧‧‧ cutting seat

446‧‧‧Molding

447‧‧‧ Side knife department

448‧‧‧ molding space

449‧‧‧fixed slot

82‧‧‧Production direction

Claims (14)

A method for manufacturing a slotted bushing of a chain is to form a single plate into a plurality of slotted bushings by using a bushing forming machine, the bushing forming machine comprising a press groove device, the press groove device comprising the plate member respectively a punching seat opposite to each other and relatively movable relative to each other, and a pressing seat having a plurality of ribs spaced apart and extending toward a processing surface of the sheet, and the manufacturing method comprises: a conveying step, The plate is conveyed along a production line direction; and a groove step is adopted to stop the movement of the plate, and the abutment of the groove forming device of the bushing forming machine is moved closer to the punching seat, and then the convex portion of the punching seat is moved. Striping the machined surface of the sheet material into a plurality of oil storage tanks spaced apart from each other; wherein the liner forming machine further comprises a positioning device located upstream of the pressure tank device, the manufacturing method further comprising a pressure groove in the pressure groove a positioning step before the step, in which the positioning device is used to pass the sheet only in the direction of the line without offset. The method of manufacturing a slotted bushing of a chain according to claim 1, wherein the positioning device comprises a seat body, and a positioning groove defined by the seat body and extending longitudinally along the line direction. In the positioning step, the plate is restricted by passing through the positioning groove, and can only advance along the line direction without left-right offset or up-and-down offset. A method of manufacturing a slotted bushing of a chain according to claim 1, wherein the bushing forming machine further comprises a conveying device located downstream of the press groove device, the conveying device comprising two respectively clamped thereto On the plate The lower side and the rotatable transport wheel, in the transporting step, transport the sheet material along the line direction through the transport wheel of the transport device. A method of manufacturing a slotted bushing of a chain according to claim 1, wherein in the conveying step, the sheet material is conveyed intermittently, and the moving distance of the oil storage tank is 8 to 12 times each time. . The method of manufacturing a slotted bushing of a chain according to any one of claims 1 to 4, wherein an extending direction of the oil sump formed in the pressing step is vertically parallel to the line direction and arranged in parallel with each other . The method of manufacturing a slit bushing of a chain according to any one of claims 1 to 4, wherein an extending direction of the oil sump formed in the pressing step is not perpendicular to the line direction and is parallel to each other arrangement. A method of manufacturing a slotted bushing of a chain according to any one of claims 1 to 4, wherein the bushing forming machine further comprises a cutting device located downstream of the press groove device, the cutting device a cutting seat and a retaining seat respectively located on opposite sides of the plate and movable relative to each other, the manufacturing method further comprising a cutting step after the pressing step, in which the cutting step is utilized The cutting seat of the cutting device is moved closer to the blocking seat, and the sheet conveyed in the direction of the production line is cut into a C-shaped bushing body. A method for manufacturing a slotted bushing of a chain is to form a plate with a plurality of slotted bushings by using a bushing forming machine, the bushing forming machine comprising a press groove device, the press groove device comprising a clamping device respectively a pressing wheel and a feeding wheel which are opposite to the side of the plate and are rotatable to move the plate in a line direction, the groove wheel is arranged at intervals and facing a processing strip extending from a processing surface of the sheet, and the manufacturing method comprises: a conveying groove step, wherein the pressing wheel and the feeding wheel rotate to drive the sheet to move along the line direction, and the pressing groove is utilized The ribs of the wheel roll the machined surface of the sheet into a plurality of oil sumpes spaced apart from one another. A method of manufacturing a slotted bushing of a chain according to claim 8, wherein the bushing forming machine further comprises a positioning device located upstream of the press groove device, the manufacturing method further comprising a transfer groove in the transfer groove a positioning step before the step, in which the positioning device is used to pass the sheet only in the direction of the line without offset. The method of manufacturing a slotted bushing of a chain according to claim 9, wherein the positioning device comprises a seat body, and a positioning groove defined by the seat body and extending longitudinally along the line direction. In the positioning step, the plate is restricted by passing through the positioning groove, and can only advance along the line direction without left-right offset or up-and-down offset. The method of manufacturing a slotted bushing of a chain according to claim 8, wherein in the step of conveying the groove, the plate is conveyed intermittently, and the width of the oil storage tank is 8 to 12 times each time. Moving distance. The method of manufacturing a slotted bushing of a chain according to any one of claims 8 to 11, wherein an extending direction of the oil sump formed in the conveying groove step is perpendicular to the line direction and parallel to each other arrangement. The method of manufacturing a slotted bushing of a chain according to any one of claims 8 to 11, wherein an extending direction of the oil sump formed in the conveying groove step is not perpendicular to the line direction and parallel to each other Arranged at intervals. The manufacture of the slotted bushing of the chain according to any one of claims 8 to 11 The method of manufacturing, wherein the bushing forming machine further comprises a cutting device located downstream of the press groove device, the cutting device comprising a cutting seat and a movable one on opposite sides of the plate and movable relative to each other a retaining seat, the manufacturing method further comprising a cutting step after the step of transporting the groove, wherein in the cutting step, the cutting seat of the cutting device is moved closer to the retaining seat and the product is to be produced The sheet cut from the line direction is formed into a C-shaped bushing body in cross section.