TW499358B - Method of manufacturing roller shaft - Google Patents

Abstract

Disclosed is a method of manufacturing roller shaft, comprising the steps of: forming symmetrical, semi-tubular cavities on each of an upper mold and a lower mold. The cavities are each formed with semi-circular bearing holes at its opposite ends. On one side of the semi-tubular cavity of the upper mold is provided with a runner channel. A central shaft may pass through a seamless tube, which is then placed between the upper and lower molds. Rubber material is then injected between the central shaft and the seamless tube through the runner channel such as to form a rubber roller around the central shaft. As such, a rubber roller without mold lines but with a smooth surface is formed around the central shaft.

Description

499358 V. Description of the invention α) A "manufacturing method of a roller rod", especially a method for manufacturing a rubber roller without a mold line on a central axis. The surface of the rubber roller is smooth and has no mold line. Press, a general printer or business machine, on which a roller for feeding photocopy paper or list paper is attached to a central shaft a made of metal to form a rubber roller b, and it is conventionally made on the central shaft a As shown in the seventh figure, the method for manufacturing the rubber roller b is provided on the upper mold c and the lower mold d with a symmetrical semi-tubular mold cavities c 1 and d 1, and the semi-tubular mold cavities c 1 and d 1 Both ends are provided with semi-circular bearing holes c2, d2, and a material trough c3 is provided on the top surface of the upper die c. A pressing plate e for extruding rubber material is set above the material trough c3, and the The pressure plate e is installed under an extruder (not shown in the figure), and a washing channel <c4> is provided between the trough c3 and the side of the semi-tubular mold cavity c1. Both ends of a straddle the semi-circular bearing holes c 2 and d 2 of the upper die c and the lower die d, and then the pressing plate e squeezes the rubber material of the material tank c 3 of the upper die c into the upper die c through the washing channel 4. The semi-tubular mold 6 (: 1, and a rubber roller b is formed on the central axis a; and the finished product taken out after the mold is opened is shown in FIG. 8). However, the semi-tubular mold of the upper mold c and the lower mold d There is a mold clamping between the holes c 1 and d 1 Surface, so after the rubber roller b is formed, two clamping lines b 1 will be generated on the surface of the rubber roller b, as shown in the ninth figure, so the rubber roller b must be ground again to obtain a better Roundness; and because the rubber roller b must be ground after being formed on the central axis a, it is more troublesome and inconvenient in manufacturing, and the manufacturing cost is increased. Moreover, because the rubber roller b must be cut and ground, The

499358 V. Description of the invention (2) The outer diameter of the rubber roller b must have a machining allowance, and the production of waste after grinding processing increases the cost of materials. In addition, the position of the mold line b 1 of the rubber roller b is prone to hardening and stress concentration, so that the position of the mold line b 1 will be contracted in the future, so the roundness is lost, and the quality of the product is lowered. The inventor felt that the conventional roller lever had the above-mentioned shortcomings, so he set out to conceive, and finally designed a method for manufacturing a roller lever, which is mainly provided with a symmetrical semi-tubular mold cavity between the upper and lower molds. Semi-circular bearing holes are provided at both ends, and a runner is provided at the side of the semi-tubular cavity of the upper mold; a central shaft must be passed through a seamless tube and placed in the upper and lower molds, and then rubber The material is injected between the central axis and the seamless pipe from the washing channel to form a rubber roller I wheel on the central axis. According to the manufacturing method described above, a rubber roller without a mold line and a smooth surface can be formed outside the central axis. Therefore, the main object of the present invention is to provide a method for manufacturing a rubber roller without a mold line on a central axis. The surface of the rubber roller is smooth and has no mold line, so as to obtain better manufacturing quality. In order to make the present invention more clear and detailed, the following drawings are described in detail below: First, please refer to the first to third drawings. The present invention is mainly composed of the following manufacturing steps, which are described as follows: ( a) The symmetrical semi-tubular mold cavities 1 1 and 21 are opened between the upper mold 1 and the lower mold 2, and semi-circular bearing holes 1 2 and 2 2 are provided at both ends of the semi-tubular mold cavities 1 1 and 21, and A top groove 1 3 is provided on the top surface of the upper die 1, and a pressing plate 3 for extruding rubber material is set above the trough 13

The 499358 h pressure groove clearly states that the Yuanfa sheet is as follows, and 4, IX is poured on the side.} A machine is shown with a side-by-side side view. C, press 1 and squeeze the cavity. (3) Equipped with half-three lines and 3 3

5 Pipes without any puncture 4 ΙΦ JJ9 Heart 1 •, will be shown b Figure C 4 Axial center and rH circle in the hole 2 half, 1 ·, 2 to 1 shows the shape of the two points of the acupoint The first half of the mold is as follows, and the shaft T- 同 LO is placed on the same mold tube 5 in the seamless span to make no union, 4 2 axis 2 center, middle 2 make warp and the center of the 4th rubber axis, 3 in 6 1 into the groove to squeeze the rolling material 1 glue 1 rubber 1 cavity into the shape of the mold and shape the tube 4 3 the center of the axis plate 1 ± Φ— the model is described above and forward, so as to make time} 4 of the C τ- C LO C pipe joints are taken out of nothing as shown in Figure 4 and a 5 pipe joint is not the same as 4gc after the mold av4_J in \ ly •, .α is shown in the figure in the figure. And the drawing will be like five, like,, but after cooling out 6 5 wheel tube roll seam glue without rubber from the wheel on the rubber and rubber e C; 4 shaft tube 5 half pipe seam 2 There is no mold for borrowing and gaining 1 for the mold. On the 5th, the tube has no seam. There are two ways to build the internal system. The shape of the root cavity mold is shaped. The 6-wire wheel mold is made of rolled rubber. The upper thread table mold 6 is the rubber of the roller. 2 The mold is placed on the lower and upper 14 shafts. Avoid opening in the heart and drawing in the back. 5 pipe seams without ο ^ 31 Surface 6 The rubber of the surface roller smooth rubber should be finished and there are 6 wheels of rubber rubber. Grinding the text, the production, the process, the rework, must be low, not reduced, it is complete, that is, the order ^ 1

Page 6 499358 Yu Gong plus stay need to cut without grinding and grinding without 6 roller glue 4) rubber / V this month and Mingfa can be exempted and wire mold 0 combined without material and surface material table low 6 The down wheel has to be rolled and glued, and the province should be made by the French side after the production of the deformation caused by the deformation of the rubber is eliminated. The exposure of the Zhenming Collection in the Exponential Revealing Circles should be better. It can be described as a result of the above-mentioned reason, and the comprehensive model conditions are reasonable. The special statement issued to the Prestige Bureau has been issued, hopefully, and the special statement of effectiveness and profit is posted to Dashen. Be able to pray

Hr Page 7 499358 The diagram is a brief description of the first diagram, the second diagram, the third diagram, the fourth diagram, the fifth diagram, the sixth diagram, the seventh diagram, the eighth diagram, and the ninth diagram. In-mold lower mold, lower mold, upper and upper part of the hair, this figure is shown in the figure, the wheel is cut out, the roller is rolled out, the rubber tube body is shaped like a rubber seam, the shape of the pipe is not formed, and the center of the pipe is connected with the shaft. Taken from the book issued by Ming Mingfa, the book is a picture of the body of the book, the view of the book is made of the book, the book of the book is the view of the book, the book of the book of the book, the book of the book 2 2 1 S early irH rH rH CXI CO LO Jane hole hole module bearing pipe mold round track tube sheet seam half wash half pressure without semi-tubular die six material trough lower die semicircle bearing hole central axis rubber roller

oo 1 ± 1 ± CO%

Claims (1)

499358 Six-J rod-and-roller roller fan made by the French method, please include-including the mold surface, the top pipe mold, the upper half of the mold, the right and the right, the hole, the open half of the circle, and the lower end of the mold. The upper part of the two mold cavities is a half of the tube and the other half of the cavity pressure tube is squeezed with the rubber of the grooved material, and the organic pressure is obtained; There is a material installed between the board and the blank holder on the side of the side. The hole mold has a die on the center of the tube across the axis of the tube. The tube is sewn in the middle and the tube is sewn. The hole axis passes through the centerless pair that passes through the half-slot center of the circular tube axis and the same axis. The center and center of the two b's are moulded down, and the mold cavity is poured into the channel. The gap between the materials is the best. The shape of the material and the center of the mold axis will be pressed into the cavity of the squeeze. The shape of the mold will be taken out of the C mold of the tube half C and 1 tube seam is not the same as the 4ec •, the rear wheel mold is rolled and glued to the rubber} to d In the shape of the upper axis of the shape C, the center of the shaft will be able to stop immediately. Cold out of round pomelo * 3 ^ · 一 〆 '* roll in the rubber tube, the seam of the roller should be free of the cause &gt; roll e rubber C rubber on ^ 1 Page 9