JP4897271B2 - Opening and closing cover for bar feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening and closing cover of a bar material feeder, opened and closed from both of right and left sides. <P>SOLUTION: This opening and closing cover 12 covering the upper part of the bar material feeder along the material feeding direction (a), includes: a main cover 13; and a sub-cover 15 covering an opening part 14 provided in the main cover, wherein one side edge along the material feeding direction (a) of the main cover is connected to a frame 16 of the bar material feeder through a first pivot part 18, and one side edge along the material feeding direction (a) of the sub-cover is connected to the main cover through a second pivot part 23. The main cover is opened to form a large opening part above the bar material feeder, and with the main cover closed, the sub-cover is opened to form an opening part in part of the main cover. The main cover is opened and also the sub-cover is opened to form a larger opening part above the bar material feeder. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to an opening / closing cover for a bar feeder.

  The bar feeder is a device that feeds the bar from its tip to a processing machine such as a lathe and supports the rear part of the bar while the machine is processing the tip of the bar. Covered by an open / close cover extending along the direction.

  The opening / closing cover 1 shown in FIG. 6 is connected via a hinge 2 to one side of the frame of the bar feeder along the feeding direction a (see FIG. 1). In FIG. 6, the symbol A indicates a bar placed on the material shelf 4 of the bar feeder. When inspecting the inside of the bar feeder, lift the open / close cover 1 by holding the handle 3 to open the open / close cover 1 upward with the hinge 2 as a fulcrum to expose the upper part of the bar feeder. Can do.

  Moreover, the open / close covers 5 and 6 shown in FIG. 7 are connected to both sides of a beam 7 provided along the feed direction above the bar feeder via hinges 8 and 9, respectively. When inspecting the inside of the bar feeder, the opening / closing covers 5 and 6 are lifted by holding the handle 10 to open upward with the hinges 8 and 9 as fulcrums to expose the upper part of the bar feeder. be able to.

  The open / close cover 1 shown in FIG. 6 can be opened from one side of the bar feeder, but cannot be opened from the opposite side, which makes it difficult to work from the opposite side. Further, the open / close covers 5 and 6 shown in FIG. 7 can be opened from both sides of the bar feeder, but there are the open / close covers 5 and 6 and the beams 7 in the upper center of the bar feeder. Therefore, there is a problem that it interferes with inspection work.

  An object of this invention is to provide the opening / closing cover of the bar feeder which can solve such a problem.

  In order to solve the above problems, the present invention employs the following configuration.

That is, according to the first aspect of the present invention, in the open / close cover (12) that covers the upper portion of the bar feeder along the feed direction (a) and opens and closes in the vertical direction, the open / close cover (12) rotates in the vertical direction. The main cover (13) includes a movable main cover (13), and an auxiliary cover (15) that covers the opening (14) provided in the main cover (13) and is rotatable in the vertical direction. ) Can be rotated to the frame (16) of the bar feeder through a first pivot (18) as a horizontal fulcrum provided in the horizontal direction at one side edge along the feed direction (a). The main cover (13) is connected via a second pivot (23) as a horizontal fulcrum that is connected and has one side edge along the feeding direction (a) of the sub cover (15) provided in the horizontal direction. to be pivotally connected, said main cover (13) and the sub-cover (15) both Will have a state, with the opening of the operation main cover (13) the second pivot portion of the sub-cover (15) (23), characterized in that the rise.

According to a second aspect of the present invention, in the opening / closing cover (12) of the bar feeder according to the first aspect, the opening (14) is closer to the first pivot (18) in the main cover (13). The second pivot (23) is provided on the opposite side of the opening (14) from the first pivot (18), and the main cover (13) In a direction crossing the feeding direction from each of the top wall (13b) extending from one end of the frame (16) to the opposite end in the intersecting direction and the front and rear ends of the feeding direction (a) of the top wall (13b) Extending and rotatably connected to the opposite end of the frame (16) using a first pivot (18), having front and rear arms (19, 19) spaced apart from each other , the top wall (13b) and the front and rear The arms (19, 19) are opened in the direction crossing the feed direction (a). The sub-cover (15) is disposed between the front and rear arms (19, 19), extends from the opposite end of the frame (16) to the top wall (13b), and extends to the top wall (13b). It is characterized in that it is pivotably connected to.

The invention according to claim 3 is the opening / closing cover (12) of the bar feeder according to claim 1 or 2 , wherein the main cover (13) is connected to the frame ( 16), and the sub cover (15) is connected to the main cover (13) via the opening / closing actuator (24).

  According to a fourth aspect of the present invention, in the opening / closing cover (12) of the bar feeder according to the third aspect, the opening / closing actuators (20, 24) are fluid damper devices.

  According to the first aspect of the present invention, in the open / close cover (12) that covers the upper portion of the bar feeder along the feed direction (a), the open / close cover (12) includes the main cover (13) and the main cover ( 13) and a sub cover (15) covering the opening (14) provided in the main cover (13). One side edge along the feed direction (a) of the main cover (13) is the first pivot portion. (18) is connected to the frame (16) of the bar feeder, and one side edge of the sub cover (15) along the feeding direction (a) is connected to the second pivot (23). Since the main cover (13) is connected, the main cover (13) is opened to form a large opening (14) at the top of the bar feeder, and the main cover (13) is closed. An opening (14) is formed in a part of the main cover (13) by opening the sub cover (15). By opening the main cover (13) and opening the sub-cover (15), a larger opening (14) can be formed in the upper part of the bar feeder, and thus the upper part of the bar feeder. In addition, it is possible to secure a work space of a size according to the work content and improve work efficiency.

  According to the invention of claim 2, in the opening / closing cover (12) of the bar feeder according to claim 1, the opening (14) is closer to the first pivot (18) of the main cover (13). And the second pivot (23) is provided on the opposite side of the opening (14) from the first pivot (18), so that the pivot of the main cover (13) is provided. The side can be opened, and therefore the work can be easily performed from the pivot side of the main cover (13).

  According to the invention of claim 3, in the opening / closing cover (12) of the bar feeder according to claim 1 or claim, the main cover (13) is connected to the frame (16) via the opening / closing actuator (20). ) And the sub cover (15) is connected to the main cover (13) via the opening / closing actuator (24), so that the main cover (13) and the sub cover (15) can be opened and closed easily and quickly. be able to.

  According to the invention of claim 4, in the opening / closing cover (12) of the bar feeder according to claim 3, since the opening / closing actuators (20, 24) are fluid damper devices, the main cover (13) Alternatively, the sub cover (15) can be easily opened and closed by an operator by hand.

  The best mode for carrying out the invention will be described below with reference to the drawings.

  As shown in FIGS. 1A and 1B, the bar feeder is disposed beside a lathe 11 that is a processing machine, and its upper portion is covered with an opening / closing cover 12 extending along the feed direction a. Below the opening / closing cover 12, a drive unit such as a push rod (not shown) for feeding the bar A to the lathe 11 from its front end while holding the rear end of the bar A is disposed. As shown in FIG. 2, a material shelf 21 on which a plurality of bars A are placed is provided below the opening / closing cover 12. The bar A is sent one by one from the material shelf 21 to the front of the push bar.

  As shown in FIGS. 1 and 2, the open / close cover 12 includes a main cover 13 and a sub cover 15 that covers the opening 14 provided in the main cover 13. The entire upper opening of the bar feeder is covered with the opening / closing cover 12 so as to be freely opened and closed.

  As shown in FIGS. 1 and 2, the main cover 13 has a side wall 13 a that rises from the left side along the feeding direction a of the frame 16 of the bar feeder, and extends from the side wall 13 a to a substantially central portion of the opening / closing cover. And the top wall 13b. As shown in the figure, the top wall 13b of the main cover 13 lacks approximately half of the side opposite to the side wall 13a, and the lacked portion is an opening 14 covered with the sub cover 15. The top wall 13b and the side wall 13a are integrally formed by a thin plate, and a plurality of ribs 13c are intermittently provided on the inner surfaces thereof in the feed direction. Each rib 13c extends from the inner surface of the side wall 13a to the inner surface of the top wall 13b. A handle 17 is disposed on the outer surface of the top wall 13b.

  As shown in FIGS. 1 and 2, one side edge of the main cover 13 along the feed direction is connected to the frame 16 of the bar feeder via the first pivotal support 18. Specifically, the arm 19 is fixed in parallel to the front and rear ends of the main cover 13, and both arms 19 are located on the right side in the feed direction a of the frame 16 of the bar feeder so that the opening 14 is sandwiched from the front and rear. These extended ends are pivotally attached to the frame 16 via a support shaft 18a. As shown in FIGS. 2 and 3, the main cover 13 can be rotated in the vertical direction with the support shaft 18a as a fulcrum, thereby opening and closing the upper portion of the bar feeder.

  As shown in FIGS. 1 to 3, the main cover 13 is connected to the frame 16 via an opening / closing actuator 20 provided as necessary. The opening / closing actuator 20 can be composed of various cylinder devices such as a piston / cylinder device. In this embodiment, a gas damper device which is a fluid damper device is used. Thus, the main cover 13 can be opened and closed simply by the operator holding the handle 17 and applying light force. As shown in the illustrated example, the opening / closing actuator 20 is provided at a position where there is no hindrance to the insertion and removal of the bar A.

  As shown in FIG. 1A, FIG. 2 and FIG. 4, the sub cover 15 includes a side wall 15a standing from the right side along the feed direction a of the frame 16 of the bar feeder, and an opening / closing cover from the side wall 15a. And a ceiling wall 15b extending substantially to the center. The sub cover 15 covers the opening 14 having the area of the substantially right half of the main cover 13. The top wall 15b and the side wall 15a are integrally formed of a thin plate, and a plurality of ribs 15c are intermittently provided on the inner surfaces thereof in the feed direction. Each rib 15c extends from the inner surface of the side wall 15a to the inner surface of the top wall 15b. A handle 22 is fixed to the outer surface of the top wall 15b.

  As shown in FIGS. 1 and 2, one side edge of the sub cover 15 along the feeding direction “a” is connected to the frame 13 d of the main cover 13 via the second pivotal support portion 23. The frame 13d of the main cover 13 extends in the center direction of the main cover 13 along the feeding direction a, and the second pivot portion 23 whose side edge along the feeding direction a of the sub cover 15 is a hinge on the frame 13d. It is connected via. As a result, as shown in FIGS. 2 and 4, the sub cover 15 can be rotated upward at the center of the opening / closing cover 12 with the pivot shaft 23a of the hinge as a fulcrum. Can be opened and closed.

  As shown in FIGS. 1 to 4, the sub cover 15 is connected to the frame 13 d of the main cover 13 via an opening / closing actuator 24 provided as necessary. The opening / closing actuator 24 can be composed of various cylinder devices. In this embodiment, a gas damper device that is a fluid damper device is used. As a result, the sub cover 15 can be opened and closed on the main cover 13 simply by the operator holding the handle and applying light force. As shown in the illustrated example, the opening / closing actuator 24 is provided at a position where there is no hindrance to the insertion and removal of the bar A. As shown in FIG. 5, the sub-cover 15 can open the opening 14 on the main cover 13 with the main cover 13 opened.

  Next, the operation of the opening / closing cover having the above configuration will be described.

  When working on the inside of the bar feeder from the left side, the handle 17 of the main cover 13 is lifted slightly in the state shown in FIG. As a result, the gas damper device, which is the opening / closing actuator 20, operates, and the main cover 13 rotates upward about the support shaft 18a as shown in FIG. When the main cover 13 is raised to the uppermost position, a large opening is formed at the top of the bar feeder. The operator can check the state, presence / absence, and the like of the bar A through the large opening, and supply the bar A onto the material shelf 21.

  When working from the right side inside the bar feeder, the sub cover 15 is lifted slightly with the handle 22 in the state shown in FIG. As a result, the gas damper device which is the opening / closing actuator 24 operates, and the sub cover 15 rotates upward with the pivot shaft 23a of the hinge as a fulcrum as shown in FIG. When the sub-cover 15 is raised to the uppermost position, a large opening is formed by opening the opening 14 of the main cover 13 in the upper right half of the bar feeder. The operator can check the state, presence / absence, etc. of the bar A from the right side of the bar feeder through this opening, or supply the bar A onto the material shelf 21.

  Further, by opening the main cover 13 as shown in FIG. 3 and then opening the sub cover 15 as shown in FIG. 5, the upper portion of the bar feeder can be opened more widely. This makes it possible to perform operations such as inspection and bar supply from both the left and right sides of the bar supply machine.

  In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the meaning of this invention. For example, in the above embodiment, the opening and the sub cover are provided in one half of the main cover, but the area may be smaller or larger than that. It is also possible to change the position on the main cover.

The bar feeder provided with the opening / closing cover which concerns on this invention is shown, (A) (B) is the top view and front view, respectively. 2A is a cross-sectional view taken along the line II-II in FIG. It is sectional drawing similar to FIG. 2 which shows the state which opened the main cover. It is sectional drawing similar to FIG. 2 which shows the state which opened the sub cover. It is sectional drawing similar to FIG. 2 which shows the state which opened the main and sub covers. It is a cross-sectional view showing a conventional opening / closing cover. It is a cross-sectional view showing another conventional opening / closing cover.

Explanation of symbols

a ... Feeding direction 12 ... Opening / closing cover 13 ... Main cover 14 ... Opening 15 ... Sub cover 16 ... Frame of bar feeder 18 ... First pivot 20, 24 Open / close actuator 23 ... Second pivot

Claims (4)

An open / close cover that covers the upper part of the bar feeder along the feed direction and opens and closes in the vertical direction. The open / close cover covers the main cover that can be rotated in the vertical direction, and covers the opening provided in the main cover. And a sub-cover capable of rotating in a direction, and a bar feeder through a first pivot as a horizontal fulcrum provided with one side edge along the feed direction of the main cover in the horizontal direction The side cover of the sub-cover is pivotably connected to the main cover through a second pivot as a horizontal fulcrum provided in the horizontal direction. Concatenated ,
An opening / closing cover for a bar feeder, wherein the main cover and the sub cover are both opened, and the second pivot of the sub cover is raised with the opening operation of the main cover. The opening / closing cover of the bar feeder according to claim 1, wherein the opening is formed at a location near the first pivot in the main cover, and the second pivot is the first pivot in the opening. Provided on the opposite side of the branch,
The main cover extends in a direction intersecting the feeding direction from each of the top wall extending from one end of the frame toward the opposite end in a direction intersecting the feeding direction and the front and rear ends of the top wall in the feeding direction. Using a single pivot, rotatably connected to the opposite end of the frame, and having front and rear arms separated from each other ;
The top wall and the front and rear arms define the opening that opens in a direction intersecting the feed direction,
An opening / closing cover for a bar feeder, wherein the sub cover is disposed between the front and rear arms, extends from the opposite end of the frame to the top wall, and is rotatably connected to the top wall.   3. The opening / closing cover of the bar feeder according to claim 1 or 2, wherein the main cover is connected to the frame via an opening / closing actuator, and the sub cover is connected to the main cover via an opening / closing actuator. Opening / closing cover for bar feeder.   4. The opening / closing cover of the bar feeder according to claim 3, wherein the opening / closing actuator is a fluid damper device.

Images