JPH0826435A - Workpiece pressing and transferring apparatus - Google Patents

Abstract

PURPOSE:To effectively prevent an endless belt from lateral deviation on the lower part by locking guide plates on both sides of the endless belt trained over front and rear rollers and providing small width parts suspended short from the longitudinally intermediate parts of guide plates and wide width parts suspended largely downward from the front and rear ends. CONSTITUTION:A plurality of rollers 12 are supportingly arranged longitudinally on one side of a machine body 11 suspended supportingly from a frame 10 in a predetermined pitch and an endless belt 13 is trained over the front and rear rollers 12-1, 12-2 in a workpiece pressing and transferring apparatus. Guide plates 14 are suspended fixedly from both sides of the machine body 11. The guide plates 14 are formed respectively on the longitudinally intermediate parts with small width parts 14a suspended short therefrom to be opposed to on both sides of the upper side 13a of the endless belt 13, while being formed respectively on the front and rear ends with wide width parts 14b suspended largely therefrom to opposed to each other on both sides of the front and rear curved parts 13c of the endless belt 13, so that the endless belt 13 is prevented from the lateral displacement (lateral deviation) on the lower side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work pressing / transferring device for pressing a work such as a plate material or a square material placed on a table and transferring the work in a fixed direction.

[0002]

2. Description of the Related Art There is a conventional technique shown in FIGS. 3 and 4. In FIG. 3, reference numeral 2 denotes a machine body suspended and supported by the frame 1, which is elongated in the front-rear direction. A large number of rollers 3 are horizontally and arrayed and supported on one side surface (right side) of the machine body 2 at a predetermined pitch in the front-rear direction, and an endless belt 4 is suspended between the front-rear rollers 3-1 and 3-2. A guide plate 5 that restricts lateral displacement (lateral movement) of the endless belt 4 is suspended and fixed to the machine body 2. This guide plate 5 is formed of a plate material having a narrow width in the front-rear direction, and as shown in FIG.
An upper surface cover 6 that covers the upper surface of the endless belt 4 is projectingly fixed to the side surface (right side surface) of the machine body 2 toward the outer side, and the guide plates 5 are locked to the left and right sides of the upper surface cover 6 downward. , Its lower end is on the upper side 4a of the endless belt 4
Face both sides of.

[0003]

In the above-mentioned prior art, since the guide plates 5 face only both sides of the upper side 4a of the endless belt 4, the lower side 4b of the endless belt 4 is laterally loaded by the work. When receiving, the lower side 4b is laterally displaced (moved laterally), and there is a drawback that the machining accuracy of the work is lowered. SUMMARY OF THE INVENTION It is an object of the present invention to obtain a new work pressing and transferring device which solves the above drawbacks.

[0004]

The present invention is configured as follows to achieve the above object. That is, a large number of rollers are supported horizontally on a suspended body with a predetermined pitch in the front-rear direction, an endless belt is suspended between the front and rear rollers, and guide plates facing both sides of the endless belt are attached to the body. At the same time, the guide plate faces the upper and lower sides of the endless belt with its front-rear direction intermediate portion as a small width portion that hangs downward downwardly, and its front and rear end portions as a wide portion that hangs downwards. The front and rear curved portions are made to face each other on both sides. Further, the roller is formed of a synthetic resin material having elasticity, and the front roller and the rear roller are formed to have a gradually narrower width from the axial center side toward the outer peripheral side, and the width of the outer peripheral end is the width of the endless belt. The width is narrower than that.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a II-II sectional view thereof. 1 and 2, reference numeral 11 denotes a machine body of a work pressing / transporting device suspended and supported by a frame 10, which is formed to be long in the front-rear direction (left-right direction in FIG. 1) as in the conventional case. A large number of rollers 12 are horizontally and arrayed and supported on one side surface (right side surface in FIG. 2) of the machine body 11 at a predetermined pitch in the front-rear direction, and an endless belt 13 is suspended between the front and rear rollers 12-1, 12-2. To do.

A guide plate 14 for restricting lateral displacement (lateral movement) of the endless belt 13 is suspended and fixed to the machine body 11. That is, as shown in FIG. 2, the side surface (right side surface) of the machine body 11
An upper cover 15 that covers the upper surface of the endless belt 13 is projected and fixed outward, and a pair of metal plate guide plates 14 is fixed to the lower surface of the upper cover 15 downward by screws.

Each of the guide plates 14 is formed with a small width portion 14a that hangs downward in the front-rear direction to face both sides of the upper side 13a of the endless belt 13, and the front-and-rear end portions of the guide plate 14 hang downward greatly. The endless belt 13 is formed on the wide width portion 14b so as to face both sides of the front and rear curved portions 13c. The lower end of the wide width portion 14b is positioned slightly above the lower end of the roller 12 to prevent contact with the work.

The above-mentioned roller 12 comprises a metal boss portion 12a and an elastic synthetic resin body portion 12b fixedly attached to the outer circumference of the boss portion 12a.
As shown in FIG. 2, 1 and 12-2 are formed such that the width of the body portion 12b is gradually reduced from the axial center side toward the outer peripheral side, and the width W1 of the outer peripheral end thereof is slightly smaller than the width W2 of the endless belt. The width of the body 12b of each roller 12 between the front and rear rollers 12-1 and 12-2 is made the same as the length of the boss 12a. A transmission mechanism including a gear or a chain driven by a motor and a sprocket is installed in the machine body 11, and each roller 12 is rotated in the same direction and at a constant speed by the transmission mechanism.

According to the above-mentioned embodiment, when each roller 12 is rotated in the predetermined direction, the endless belt 1 wound around them is formed.
3 circulates in a predetermined direction, and the lower side 1 of this endless belt 13
3b pushes the work supplied on the table from above, and transfers the work forward (to the left in FIG. 1). In this case, the upper side 13a of the endless belt 13 and the curved portion 13c
The lateral movement of the guide plate 14 is restricted by the narrow width portion 14a and the wide width portion 14b of the guide plate 14.

The lower side 13 of the endless belt 13
When b is laterally loaded by the work, the wide width portion 14b of the guide plate 14 causes lateral deviation (lateral movement) of the start end portion and the end portion of the endless belt 13, that is, the curved portion 13c.
To prevent the lower side 13 of the endless belt 13
Since b does not laterally shift, the work can be accurately transferred. In addition, the front and rear rollers 12-1, 12-2
Is formed such that the width of the body portion 12b is gradually reduced from the axial center side toward the outer peripheral side as shown by an imaginary line, and the width W of the outer peripheral end is
Since 1 is made slightly smaller than the width W2 of the endless belt, the body portion 12b is elastically deformed by the tension of the endless belt 13,
Alternatively, even if the work is pressed and elastically deformed, the left and right side surfaces 12c do not bulge outside the endless belt as shown by the solid line in FIG. Even if the endless belt 13 is improved in lateral deviation prevention performance by approaching the end face, the both side surfaces 12c do not come into contact with the wide portion 14b of the guide plate 14.

[0011]

As is clear from the above description, according to the present invention, the function of restricting the lateral movement (lateral deviation) of the lower side of the endless belt becomes high, and the work can be transferred with high accuracy. Further, even if the roller is elastically deformed due to the pressing of the work or the tension of the endless belt, the roller does not come into contact with the wide portion of the guide plate, and the transfer load is reduced while increasing the lateral movement regulation of the lower side of the endless belt. It has the effect of being able to

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a side view showing a conventional example.

4 is a sectional view taken along line IV-IV of FIG.

[Explanation of symbols]

 10 Frame 11 Airframe 12 Roller 12-1 Front Roller 12-2 Rear Roller 12a Boss 12b Body 12c Both Sides 13 Endless Belt 13a Upper Side 13b Lower Side 13c Curved Part 14 Guide Plate 14a Small Width 14b Wide Width 15 Top cover

Claims (2)

[Claims] 1. A guide that supports a large number of rollers horizontally and at a predetermined pitch in the front-rear direction on a body that is supported by suspension, suspends an endless belt between the front and rear rollers, and faces the body on both sides of the endless belt. While locking the plate, the guide plate faces the upper and lower sides of the endless belt as a narrow width portion having its front-rear direction intermediate portion hanging downward, and its front-back end portion serving as a wide width portion hanging downward greatly. A work pressing and transferring device, characterized in that the endless belt is faced to both sides of front and rear curved portions. 2. The roller is formed of a synthetic resin material having elasticity, and the front roller and the rear roller are formed so that the width gradually decreases from the axial center side toward the outer peripheral side, and the width of the outer peripheral end is endless. The work pressing / transferring device according to claim 1, wherein the width is smaller than the width of the belt.