Through-feed type processing device

Abstract

To provide a through-feed type processing device which triggers flow of a workpiece from a temporary receiver to a drive roller and can prevent stoppage of the workpiece.SOLUTION: A through-feed type processing device according to the invention includes: a pair of drive rollers 102a, 102b which are arranged in a substantially horizontal manner so as to have predetermined torsional angles relative to each other and transport a workpiece while rotating the workpiece; a film polishing device which polishes the workpiece 110 which is transported while rotating between the pair of drive rollers; a carrying-in conveyor which carries the workpiece into the pair of drive rollers; a temporary receiver 118 which is disposed between the carrying-in conveyor and the pair of drive rollers and temporarily supports the workpiece before the workpiece is carried into the pair of drive rollers; and a vibration mechanism 126 which causes the temporary receiver to vibrate.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a through-feed type processing device having a pair of drive rollers that transports a workpiece while rotating it. [Background technology]

[0002] A through-feed type processing device is a processing device that carries out workpiece loading, processing, and removal in an assembly line process. One type of through-feed type processing device is configured to transport the workpiece with a pair of drive rollers. The pair of drive rollers are arranged approximately horizontally and approximately parallel with a specified twist angle (tilt angle), and the workpiece is placed between the pair of drive rollers so as to be sandwiched between them and the drive rollers are rotated. Then, since the angle of the axes of the pair of drive rollers is twisted, the workpiece can be transported while being rotated. In the processing device, the workpiece that is being transported while rotating is polished, for example, with a grinding wheel or film.

[0003] Patent Document 1 describes a method for processing the end of a cylindrical member. In this processing method, the cylindrical member, which is the workpiece, is fed from one side between a pair of conveying rollers (drive rollers), the end of the cylindrical member is super-finished with a grindstone, and the cylindrical member is taken out as is in the direction of travel. The pair of conveying rollers are installed parallel to each other, and a relative inclination angle is formed in the axial direction. The inclination of the pair of conveying rollers generates a component of frictional force in the conveying direction, and the cylindrical member is automatically conveyed in the axial direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-118926 A Summary of the Invention [Problem to be solved by the invention]

[0005] In through-feed processing equipment, the workpiece is carried in by a carry-in conveyor against a pair of drive rollers. However, because bearings and a drive motor are placed at the end of the drive roller, a gap is created between the carry-in conveyor and the drive roller. To prevent the workpiece from falling into this gap, a temporary support is placed between the carry-in conveyor and the drive roller, and the temporary support temporarily supports the workpiece.

[0006] However, there are cases where the workpiece comes into contact with the temporary support and stops rotating. In other words, the rotation of the drive roller is not transmitted to the workpiece, and the drive roller spins freely. When the drive roller spins freely, the workpiece does not move forward, and stops on the temporary support. When the workpiece stops, the processing equipment must be restarted to return to normal operation, and the workpiece cannot be processed, resulting in a decrease in operating rate.

[0007] In view of the above problems, the present invention aims to provide a through-feed type processing device that can trigger the workpiece to flow from the temporary holder to the drive roller, thereby preventing the workpiece from stopping. [Means for solving the problem]

[0008] In order to solve the above problems, a typical configuration of a through-feed type processing device according to the present invention is characterized in that it comprises a pair of drive rollers arranged approximately horizontally with a predetermined twist angle relative to each other and which transport the workpiece while rotating it, a film polishing device which polishes the workpiece being transported between the pair of drive rollers while rotating, an input conveyor which transports the workpiece to the pair of drive rollers, a temporary holder which is arranged between the input conveyor and the pair of drive rollers and which temporarily supports the workpiece before it is transported to the pair of drive rollers, and a vibration mechanism which vibrates the temporary holder.

[0009] It is preferable that the temporary support has a V-groove formed on the upper surface that supports the workpiece. Effect of the Invention

[0010] According to the present invention, it is possible to provide a through-feed type processing device that can create an opportunity for the workpiece to flow from the temporary holder to the drive roller, thereby preventing the workpiece from stopping. [Brief description of the drawings]

[0011] [Figure 1] 1 is a diagram showing an outline of the configuration of a through-feed type processing device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an enlarged front view showing a main part of the processing device in FIG. [Diagram 3] 3 is a rear view of the temporary support and vibration mechanism of the processing apparatus of FIG. 2. [Figure 4] 3 is a side view showing a main part of the processing device of FIG. 2. [Diagram 5] 3 is a cross-sectional view of the processing apparatus taken along line AA in FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific values ​​shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are given the same reference numerals to avoid repeated explanations, and elements not directly related to the present invention are not shown.

[0013] Fig. 1 is a diagram showing an outline of the configuration of a through-feed type processing device 100 in an embodiment of the present invention. Fig. 1(a) is a front view showing the entire processing device 100. Fig. 1(b) is a perspective view showing a part of the processing device 100 of Fig. 1(a). Fig. 2 is a front view showing an enlarged view of a main part of the processing device 100 of Fig. 1(a).

[0014] The processing device 100 includes a pair of drive rollers 102a and 102b shown in FIG. 1(b), a film polishing device 104 shown in FIG. 1(a), an input conveyor 106, and an output conveyor 108.

[0015] The carry-in conveyor 106 carries a rod-shaped workpiece (workpiece 110) shown in Fig. 1(b) onto the drive rollers 102a, 102b. The drive rollers 102a, 102b are arranged substantially horizontally with a predetermined twist angle (tilt angle), and rotate the workpiece 110 positioned between them. The workpiece 110 rotates by being positioned between the drive rollers 102a, 102b as shown in Fig. 1(b), and is carried by a component of friction in the carrying direction caused by the inclination of the drive rollers 102a, 102b.

[0016] The film polishing device 104 is a device that polishes the workpiece 110 that is conveyed while rotating between the drive rollers 102a and 102b. The film polishing device 104 has a plurality of polishing films 112a, 112b, 112c, and 112d (four in this example) with different grindstone grain sizes, and backup rollers 114a, 114b, 114c, and 114d shown in Fig. 1(b). The backup rollers 114a, 114b, 114c, and 114d are each arranged at a predetermined interval along the direction in which the workpiece 110 is conveyed, and press the polishing films 112a, 112b, 112c, and 112d against the workpiece 110.

[0017] Therefore, the workpiece 110 is polished by the polishing films 112a, 112b, 112c, and 112d in order while being conveyed while rotating between the drive rollers 102a and 102b. Then, the workpiece 110 polished by the film polishing device 104 is carried out to the carry-out conveyor .

[0018] 1(b), drive mechanisms 116a, 116b, 116c, and 116d, such as bearings and drive motors, are disposed on both ends of the drive rollers 102a and 102b in the processing apparatus 100. For this reason, a gap (e.g., about 400 mm) is formed between the carry-in conveyor 106 and the carry-out conveyor 108 and between the drive rollers 102a and 102b, respectively.

[0019] For this reason, in the processing apparatus 100, in order to prevent the workpiece 110 from falling into these gaps, a temporary support 118 on the loading side and a temporary support 120 on the unloading side are placed between the loading conveyor 106 and the unloading conveyor 108 and the drive rollers 102a, 102b, respectively, and the temporary supports 118, 120 temporarily support the workpiece 110.

[0020] 2, the processing device 100 is equipped with work sensors 122, 124. The work sensors 122, 124 are installed above the temporary rests 118, 120, respectively, and detect the position of the work 110 supported by the temporary rests 118, 120, etc.

[0021] In the through-feed type processing apparatus 100 of this embodiment, a configuration is adopted that can prevent the workpiece 110 from stopping by creating an opportunity for the workpiece 110 to flow from the temporary holder 118 on the carry-in side to the drive rollers 102a and 102b. That is, the processing apparatus 100 is provided with a vibration mechanism 126 that vibrates the temporary holder 118 on the carry-in side shown in FIG.

[0022] Fig. 3 is a rear view of the temporary holder 118 and the vibration mechanism 126 of the processing apparatus 100 of Fig. 2. Fig. 4 is a side view showing a main part of the processing apparatus 100 of Fig. 2. Fig. 5 is a cross-sectional view of the processing apparatus 100 of Fig. 2 taken along line AA.

[0023] The temporary holder 118 is an elongated member as shown in Fig. 3. A V-shaped groove 128 (see Fig. 4) is formed on the upper surface of the temporary holder 118 that supports the workpiece 110. The vibration mechanism 126 is a mechanism that vibrates the temporary holder 118.

[0024] The vibration mechanism 126 has an arm 130 as a support pillar that supports the temporary support 118, gas springs 132a and 132b that function as dampers, and two legs 136 and 138 that are fixed to a base plate 134 or the like shown in Fig. 4. Also, the arm 130 is located between the legs 136 and 138 as shown in Fig. 4.

[0025] As shown in Figures 3 and 4, the gas spring 132a has an upper end 140a connected to the arm 130 via a mounting bracket 142a, and a lower end 144a connected to the leg 136 via a mounting bracket 146a. As shown in Figure 3, the gas spring 132b has an upper end 140b connected to the arm 130 via a mounting bracket 142b, and a lower end 144b connected to the leg 136 via a mounting bracket 146b.

[0026] 4 and 5, the vibration mechanism 126 has a support shaft 148 and a motor 150. The support shaft 148 is disposed so as to penetrate the legs 136, 138 and the arm 130, and has a cam 152 attached thereto for vibrating the arm 130. The support shaft 148 is journaled to the leg 136 via a bearing 156, and journaled to the leg 138 via a bearing 158. The cam 152 is journaled to the arm 130 via a bearing 154.

[0027] A gear head 160 (reduction gear) is attached to the motor 150. The gear head 160 of the motor 150 is connected to the support shaft 148 by a coupling 162 (shown in FIG. 5) provided on the support shaft 148.

[0028] As a result, in the vibration mechanism 126, when the motor 150 is driven, the support shaft 148 connected via the coupling 162 rotates, and the cam 152 attached to the support shaft 148 also rotates. The rotation direction of the cam 152 is preferably the direction of arrow B (clockwise) in FIG. 3. When the cam 152 rotates, the arm 130 and the temporary holder 118 rotate in the direction of arrow C. That is, the temporary holder 118 vibrates in the vertical direction and in the forward and backward directions of the transport of the workpiece 110. When the temporary holder 118 vibrates in the vertical direction, the workpiece 110 is always in a bouncing state. This reduces the frictional resistance between the workpiece 110 and the temporary holder 118, and prevents the tip of the workpiece 110 from hitting the ends of the drive rollers 102a and 102b and getting caught. When the temporary holder 118 also vibrates in the forward and backward directions of the transport, a transport force is applied to the workpiece 110 between the drive rollers 102a and 102b. Furthermore, when the temporary support 118 vibrates, the gas springs 132a and 132b function as dampers, so that the temporary support 118 vibrates stably.

[0029] In this manner, in the processing apparatus 100, the temporary holder 118 on the carry-in side, which is disposed between the carry-in conveyor 106 and the drive rollers 102a, 102b, is vibrated by the vibration mechanism 126. This creates an opportunity for the workpiece 110 to flow from the temporary holder 118 to the drive rollers 102a, 102b, and prevents the workpiece 110 from stopping.

[0030] In addition, because temporary receiver 118 forms V-groove 128 (see FIG. 4), an aligning effect is achieved, and a force acts to move workpiece 110 toward the center of V-groove 128. Therefore, even if workpiece 110 supported by temporary receiver 118 is misaligned or tilted, workpiece 110 can be moved stably between drive rollers 102a and 102b.

[0031] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an example. It is clear that a person skilled in the art can think of various modified or altered examples within the scope of the claims, and it is understood that such examples also naturally belong to the technical scope of the present invention. [Industrial Applicability]

[0032] The present invention can be used as a through-feed type processing device having a pair of drive rollers that transports a workpiece while rotating it. [Explanation of symbols]

[0033] 100... through-feed type processing device, 102a, 102b... drive rollers, 104... film polishing device, 106... input conveyor, 108... output conveyor, 110... workpiece, 112a, 112b, 112c, 112d... polishing film, 114a, 114b, 114c, 114d... backup rollers, 116a, 116b, 116c, 116d... drive mechanism, 118, 120... temporary holder, 122, 124... workpiece sensor, 126 ...Vibration mechanism, 128...V-groove, 130...Arm, 132a, 132b...Gas spring, 134...Base plate, 136, 138...Leg, 140a, 140b...Upper end of gas spring, 142a, 142b, 146a, 146b...Mounting bracket, 144a, 144b...Lower end of gas spring, 148...Support shaft, 150...Motor, 152...Cam, 154, 156, 158...Bearing, 160...Gear head, 162...Coupling

Claims

1. A pair of drive rollers arranged substantially horizontally so as to have a predetermined twist angle with respect to each other and which convey the work while rotating it; a film polishing device that polishes the workpiece being conveyed while rotating between the pair of drive rollers; a carry-in conveyor that carries the workpiece onto the pair of drive rollers; a temporary support disposed between the carry-in conveyor and the pair of drive rollers, for temporarily supporting the work before the work is carried into the pair of drive rollers; and a vibration mechanism for vibrating the temporary holder.

2. 2. The through-feed type processing device according to claim 1, wherein the temporary holder has a V-shaped groove formed on an upper surface thereof that supports the workpiece.

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