KR20080111746A - End surface continuously processing machine for rod-shaped work - Google Patents

Abstract

A continuous rod end cutting machine is provided to automate a series of processes including the input, charging, gripping, cutting, and eject for machining the end surface of a rod-type work piece. A continuous rod end cutting machine comprises an upper plate(10) on which a supporting frame(13) is installed, a put-in unit(20) which is enclosed with a wall(21) in order to load a plurality of work pieces(W) and guides and ejects the loaded work pieces one by one along an inclined plate(23) to an outlet, a charge unit(30) which strikes the work piece in a charge block(31) with a charge groove(33) by a striking cylinder(35) in order to push out the work piece in the axial direction, a grip unit(40) which grips and transfers the work pieces successively, a cutting unit(70) cutting the other end surface of the work piece, a collecting container(80) which temporarily stores the cut work piece(W') ejected from the grip unit, and a controller(90) controlling the striking cylinder according to the sensing of a sensor(91) installed near the grip unit.

Description

End surface continuously processing machine for rod-shaped work}

1 is a view schematically showing a conventional single rod processing method.

Figure 2 is a perspective view showing the appearance of the single-ended end surface continuous cutting machine according to the present invention.

3 is a perspective view showing the back of FIG.

4 is a right side view of a part omitted in order to show the main part of FIG.

5 is a plan view of FIG. 4.

FIG. 6 is a perspective view of a portion omitted in FIG.

7 is a perspective view of a cutting wheel.

8 is a view for explaining the operation of the gripping shown in Figure 6, Figure 8a is a state in which the fixed gripping hole is closed by the gripping to hold the workpiece, Figure 8b is a fixed gripping hole is opened to hold the workpiece Each of the released states is shown.

9 is a perspective view showing a cutting state of the workpiece by the cutting wheel.

<Description of the symbols for the main parts of the drawings>

1: Single End End Continuous Cutting Machine 10: Top Plate

11 leg 13 support frame

17: support plate 20: input tray

21: wall 30: loading section

31: loading block 33: loading groove

35: blow cylinder 40: gripping portion

41,72: Drive motor 42: Holding wheel

43: gripper transmission means 44: open cylinder

45: hub 49: fixed gripping holes

51: grip 52: floating grip ball

55: locking slot 57: locking pin

58: guide pin 61: rebound spring

62: chain 63, 64: sprocket

65: push rod 70: cutting part

71: cutting wheel 75: cutting unit transmission means

79: electric belt 80: recovery

81,82: pulley 90: control unit

91: detection sensor 92: cover projection

93: control box

The present invention relates to a single-ended end cutter, and more particularly, to automatically cut one end of the workpiece while continuously supplying a short rod-shaped workpiece made of a soft material such as wood or synthetic resin. A single-ended end face continuous cutter.

In general, in the manufacture of short rod-shaped workpieces such as paint, soft materials, such as wood or synthetic resin, are easily cut into desired sizes, surface treated, and drilled to insert various patterns. The work is completed by applying paint and finishing.

However, in the first step of the manufacturing process, the workpiece cutting process is to cut or shape the material such as wood or synthetic resin into a long thin rod first, and then cut to a predetermined length to obtain a short and thick single rod-like workpiece. .

The processed single rod is, for example, when used in the production of painting, etc., as shown in 101 in FIG. The end surface 103 is finished by the bite 105 approaching in the direction of the arrow while turning the rod 101 at high speed as in a turning machine, or as shown in the milling cutter. After fixing, the end face can be cut by a milling cutter rotating at high speed, or the end face can be finished by hand using a grinding wheel rotating at high speed.

However, when finishing the end surface 103 of the single rod 101 by turning, planing, grinding, etc. as described above, the single rod 101 is loaded on a turning machine, a milling cutter, or the like, or an operator picks up the single rod 101 and grinds it. Since the grindstone has to be polished one by one, there is a problem in that work efficiency and safety are considerably deteriorated, such as a long time due to preparation and processing, a large number of hands, and a high possibility of an accident due to a malfunction or carelessness due to a malfunction. .

The present invention has been proposed to solve the problems of the conventional single end surface cutting method as described above, in the finishing of the end of the short rod-shaped workpiece, that is, the single rod is to be continuously inserted into the cutting position automatically By greatly reducing the number of work and time required for cutting and cutting the end of the single end, the productivity of cutting is improved, and the safety and convenience of cutting the end is further improved. There is a purpose.

Therefore, the present invention, in order to achieve the above object, a plurality of legs is attached to the bottom, the upper plate is installed across the support frame at a predetermined interval on the top; It is attached to one side of the support frame installed on the top plate is surrounded by a wall to load a plurality of workpieces inside, the plurality of workpieces are guided to the discharge port one by one by the inclined plate located at the bottom to discharge sequentially ; Temporarily receiving the workpiece discharged from the discharge port in the loading groove of the loading block attached to the bottom of the input box, and hitting one end surface of the workpiece accommodated in the loading block by a striking cylinder coaxially with the loading groove A loading part for detaching the workpiece in the axial direction; A gripping part rotatably installed adjacent to the loading block to sequentially rotate and transport the workpiece to be separated from the loading groove; A cutting part rotatably installed adjacent to the holding part to cut the other end surface of the plurality of workpieces which are rotated at a low speed and sequentially conveyed while being held by the holding part; A retrieval unit temporarily installed opposite to the striking cylinder of the gripping unit to temporarily receive the pre-cut workpiece discharged from the gripping unit due to the collision with the work coming in from the loading unit; And a control unit which strikes the workpiece in the loading unit and loads the holding unit by operating the striking cylinder when the holding unit is detected by the sensing sensor installed adjacent to the holding unit. Provide end face continuous cutter.

Hereinafter, the single-ended end surface continuous cutting machine according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Single end end continuous cutting machine of the present invention, as shown by the reference numeral 1 in Fig. 2, and loaded into the loading section 30 by loading the workpiece (W) in the form of the top plate 10, the cutting object is a cutting object of the base large. The loading section 20, the loading section 30 for loading the workpiece (W) injected from the input box 20 to the holding unit 40, the holding the workpiece (W) loaded in the loading section 30 The holding part 40 which rotates at low speed, the cutting part 70 which cut | disconnects the end surface of the workpiece | work W held by this holding part 40, and the workpiece | work W which is cut and discharged from the holding part 40 is completed. Collection box 80 for temporarily accommodating '), and a control unit 90 for adjusting the overall operation.

Here, first, the top plate 10, as shown in Figures 2 to 6, forming the base of the single-ended end surface continuous cutter 1, the legs 11 are attached to each of the four corners, like a general table, , A support frame 13 having a predetermined height or more is provided across the upper middle portion. A cutting edge discharge hole 14 for discharging the cutting chip penetrates the center portion where the cutting wheel 71 is located, and a rear edge at which the grip portion transmission means 43 and the cutting portion transmission means 75 are located. A cutout groove 15 is recessed in the portion, and a shelf supporting the bearing housing 76 for axially supporting the rotary shaft 74 of the cutting wheel 71 between the discharge hole 14 and the cutout groove 15 ( 16) is attached. In addition, the support plate 17 is connected to the bottom of the bottom to attach the gripper 40 and the driving motors 41 and 72 of the cutting unit 70.

In addition, the input tray 20 which is to input the work (W) is a kind of chute for temporarily storing the work (W), as shown in Figures 2 to 5, attached to one side of the support frame 13 It consists of a wall 21 surrounding the four sides and the bottom except the open top surface and the inclined plate 23 attached to the bottom wall. At this time, a discharge port 25 for discharging the work W loaded therein is opened between the front wall and the bottom wall, and the inclined plate 23 has a discharge port 25 for smoothly discharging the work W. It is inclined downward so that the workpiece W is guided to the discharge port 25 by its own weight.

As shown in FIG. 2, the loading unit 30 configured to load the work W discharged from the discharge port 25 into the gripper 40 is temporarily inserted into the input work W as illustrated in FIG. 2. Composed of the loading block 31 to be received and the blow cylinder (35) to be loaded into the holding portion 40 by hitting the workpiece (W) accommodated in the loading block (31). Here, the loading block 31 is a block having a loading groove 33, is attached to the bottom wall bottom of the input tray 20, the loading block for temporarily receiving the work (W) from the center upwards The groove 33 is cut out in the longitudinal direction. In addition, the striking cylinder 35 is arranged in one line on one side of the loading block 31 so that the center of the workpiece (W) placed in the loading groove (33) coincides, so that one side of the work (W) by the push rod 36 By hitting the end surface (W-1), the workpiece (W) is axially separated from the loading groove (33) to be inserted into the gripping portion 40 fixed gripping hole (49).

On the other hand, as shown in Figures 2 to 6, the holding portion 40 provided adjacent to the exit side of the loading block 31 is held by the cutting portion (W) to hold the workpiece (W) which is inserted in sequence from the loading portion (30) As a part for rotationally conveying at a low speed up to 70, as shown in the drawing, the driving motor 41, the grip wheel 42, the transmission means 43, and the open cylinder 44 are largely formed.

Here, firstly, the drive motor 41 is a driving source for rotating the holding part 40, as shown in FIGS. 3 and 4, under the upper plate 10 by the support plate 17 so that the drive shaft 53 faces backward. It is installed.

The transmission means 43 connected to the drive motor 41 is a means for transmitting the driving force generated in the drive motor 41 to the grip wheel 42, as shown in Figs. However, in this embodiment, chain 62 and sprockets 63 and 64 are used as shown. That is, the drive sprocket 63 and the driven sprocket 64 are respectively coupled to the drive shaft 53 of the drive motor 41 and the rotation shaft 54 of the grip wheel 42 and connected by the chain 62 to the drive motor ( The driving force of 41 causes the grip wheel 64 to be rotated, and since the diameter of the drive sprocket 63 is much smaller than the diameter of the driven sprocket 64, the grip wheel 64 is rotated at a low speed but strong torque. do.

The grip wheel 42 connected to the drive motor 41 through the transmission means 43 is rotated by the shaft support housing 65 shown in FIG. 9 so as to rotate at a low speed by the rotational force of the drive motor 41. The rotary shaft 54 is axially supported, and as shown in Figs. 2 to 6, the front and rear pairs of disks 47 and 48 constituting the body and the disks 47 and 48 are movable in a radial direction. It consists of a some holding | gripping tool 51 interposed.

Here, the pair of disks 47 and 48 are connected via a hub 45 coaxially interposed on the rotary shaft 54 to secure a constant gap therebetween, and through the gap 51 the grip 51. Is inserted radially. In addition, a plurality of fixed gripping holes 49 pass through the circumferential direction of each of the discs 47 and 48 so as to insert the workpiece W supplied from the loading section 30. A plurality of locking pins 57 protrude so as to correspond one-to-one to the radially inner side of 49, and are inserted into the locking slots 55 of the grip 51 so that the length of the locking slots 55 is as long as the length of the locking slots 55. While allowing for movement, the grip 51 does not completely escape out of the grip wheel 42. Further, the plurality of guide pins 58 protruding between the plurality of fixed gripping holes 49 penetrating through the edges of the discs 47 and 48 are similarly arranged in the circumferential direction between the discs 47 and 48 and thus the discs ( It is adapted to guide the radial movement of the gripping 51 inserted between 47 and 48. Finally, the pair of discs 47 and 48 are radially machined on the outer circumferential surface of the hub 45 interposed in the central portion, with a plurality of spring seating holes 59 corresponding to the fixed gripping holes 49 one-to-one. The repelling spring 61 is inserted into each of the seating holes 59 to elastically support the grip 51 which is radially guided along the guide pin 58.

In addition, the grip 51 inserted between the pair of disks 47 and 48 as described above and moved radially by the resilience of the rebound spring 61 is a workpiece (inserted into the fixed gripping hole 49). Clamping means for directly pressing W) to generate a gripping force, the interference with the upper having a relatively large width to form the flow gripping hole 52 as shown in Figs. 6, 8A and 8B In order to avoid it is a lower part with a relatively small width. At this time, the flow gripping hole 52 penetrated therein is fixed gripping hole 49 when the grip 51 is pressed by the push rod 66 of the opening cylinder 44 as shown in FIG. 8B. It has a diameter equal to or larger than the diameter of the fixed gripping hole 49 so as not to interfere with the workpiece (W) inserted into the. In addition, a locking slot 55 for inserting a plurality of locking pins 57 protruding between the discs 47 and 48 penetrates radially in the lower portion.

Finally, as shown in FIGS. 2 and 3, the open cylinder 44 installed downward on the support frame 13 toward the grip wheel 42 presses the upper end surface of the grip 51 having reached the loading position. A hydraulic cylinder having a push rod 66 to press the upper surface of the grip 51 by the push rod 66, as shown in Figure 8b (partially covered by the grip 51) Opening the fixed gripping hole 49 of the 47 and 48 releases the grip on the post-cut work W ', which is fitted into the floating gripping hole 52 and pushes the push rod 66 as shown in FIG. 8A. By returning to the original position and allowing the grip 51 to be pushed up by the reaction force of the rebound spring 61, the fixed grip hole 49 is closed by the grip 51 to hold the newly loaded work W. It is supposed to be.

On the other hand, the cutting part 70 which is arranged to cut in turn the plurality of workpieces W rotatably held by the holding part 40 is as shown in Figs. 2, 3, 5, and 6. , A cutting wheel 71 for cutting the work W directly, a driving motor 72 for generating the rotational force necessary for cutting, and a transmission means for transmitting the rotational driving force generated from the driving motor 72 to the cutting wheel 71. It consists of 75.

Here, the drive motor 72 is first mounted to the lower side of the upper plate 10 by the support plate 17 as a driving source of the cutting unit 70, by the switch 77 of the control box 93 attached to one side The operation is turned off.

In addition, the transmission means 75 is a means for transmitting the driving force generated from the drive motor 72 to the cutting wheel 71, as in the grip portion transmission means 43 may be used in various forms, this embodiment In the following, the transmission belt 79 and the pulleys 81 and 82 are used. Among them, the driving pulley 81 is connected to the drive shaft 73 of the driving motor 72 as shown in FIGS. 3 and 9, and the driven pulley 82 is a cutting wheel as shown in FIGS. 3, 5, and 9. It is attached to the rotating shaft 74, respectively, and the electric belt 79 is wound on these pulleys 81 and 82. As shown in FIG. At this time, since the diameter of the drive pulley 81 is larger than the diameter of the driven pulley 82, the cutting wheel 71 rotates at a much higher speed than the grip wheel 64.

Finally, as illustrated in FIG. 5, the cutting wheel 71 is configured to cut the back end surface W-2 of the work W, which is bitten by the grip wheel 64 and is rotated and fed at a low speed, at a high speed. As shown in FIGS. 2 and 3, the rotary shaft 74 is rotatably mounted to the center of the upper plate 10 by a bearing housing 76 rotatably supported, as shown in FIGS. 5 and 6. The rear end surface (W-2) of the plurality of workpieces (W) inserted into the fixed gripping hole (49) along the edge of the gripping wheel (42) by being arranged adjacently so as to partially overlap the wheel (42). In order to cut in order, the outer peripheral portion is wrapped in the cover housing 83 except for the front surface facing the grip wheel 42 so that the cutting chips generated at this time can be discharged to the cutting chip discharge hole (14).

In addition, as shown in more detail in FIG. 7, the cutting wheel 71 has a plurality of cutting arms 85 protruding radially about the hub 84 to which the rotating shaft 74 is axially coupled, and the hub 84. ), A plurality of bolt holes 86 through which the bolts for coupling the rotation shaft 74 are inserted penetrate around the shaft holes 87. Moreover, the chamfering tip 89 which the cutting edge 88 protrudes to the front surface is attached to the front-end | tip of each cutting arm 85. As shown in FIG.

On the other hand, the retrieval box 80 which has been cut by the cutting wheel 71 to temporarily receive the workpiece W 'discharged from the holding wheel 42 is a kind of chute, and the strike of the holding wheel 42 is performed. The workpiece W 'is disposed on the opposite side of the cylinder 35 and escapes from the fixed gripping hole 49 to guide the workpiece W' to a storage container (not shown) which is installed separately from the cutting machine 1.

Finally, the control unit 90, which serves to organically operate the respective operating units, such as the striking cylinder 35, the gripper transmission means 43, the open cylinder 44, the cutting unit transmission means 75 is shown in FIG. As shown in FIG. 9, a control plate (not shown) mounted in the control box 93 under the support plate 17 and a detection sensor 91 mounted at a point adjacent to the grip wheel 42 on the top plate 10. ) Therefore, by detecting the rotational position of the grip wheel 42 by the detection sensor 91 to determine whether the grip wheel 42 is in the loading position, and according to the determination result the striking cylinder 35 and the open cylinder 44 Or the like is determined. At this time, the grip wheel 42 is one-to-one correspondence with the fixed gripping hole 49, as shown in Figure 2, 4, 5, and 9 so that the rotation angle detection by the detection sensor 91 can be made accurately The plurality of cover protrusions 92 protrude in the circumferential direction so as to protrude.

Now, the operation of the single-ended end surface continuous cutter 1 according to a preferred embodiment of the present invention configured as described above.

As described above, the single-ended end cutter 1 of the present invention continuously rotates and feeds the plurality of workpieces W having a short rod shape to finish cutting the rear end surface W-2 of the workpiece W in sequence. As a device to perform the following operation process.

First, a plurality of workpieces W are temporarily or sequentially received by the operator into the input tray 20 shown in FIGS. 2 and 5.

The workpiece W accommodated in the input box 20 immediately rolls toward the discharge port 25 along the inclined plate 23 and is introduced into the loading part 30 through the discharge port 25.

The workpiece W injected into the loading unit 30 is accommodated long in the loading groove 33 of the loading block 31 back and forth to wait for loading.

At the same time, when the driving motor 41 of the holding part 40 starts to operate, the holding wheel 42 starts to rotate at a low speed by the rotational driving force transmitted from the driving motor 41 through the transmission means 43. do.

The holding wheel 42 which is started to rotate has a cover protrusion 92 protruding from the side thereof and is detected by the sensor 91, and the controller 90 grips the rotation position at which the first cover protrusion 92 is detected. The reference position of the wheel 42 is set.

As soon as the next cover projection 92 is detected by the sensor 91, the controller 90 sees that the grip wheel 42 has reached the first loading position and operates the opening cylinder 44. By pressing the grip 51 by the push rod 66 as shown in 8a, the floating grip hole 52 of the grip 51 and the fixed grip hole 49 of the grip wheel 42 interfere with each other. The gripping space blocked by the gripping 51 is opened without causing the alignment.

Subsequently, as soon as the opening cylinder 44 is operated and the gripping space is opened, the control unit 90 operates the striking cylinder 35, whereby the striking cylinder 35 is loaded by the push rod 36. 8) and loads the workpiece W into the gripping space formed by the fixed gripping holes 49 and the floating gripping holes 52 arranged in a straight line as shown in FIG. 8A.

When loading of the workpiece W to the gripping holes 49 and 52 is completed, the operation of the opening cylinder 44 is terminated and the push rod 66 is returned to its original position as shown in FIG. As the pressing force disappears, the grip 51 is raised by the repulsive force of the rebound spring 61. As a result, the floating gripping hole 52 is raised to align the fixed gripping hole 49 and the workpiece W is momentarily buried between the two gripping holes 49 and 52.

In this way, the holding wheel 42, which gradually grasps the workpiece W by the cooperation of the gripping holes 49 and 52 while gradually rotating, has a cutting wheel 71 as shown in FIGS. 4, 5, and 9. Once the turning trajectories overlap, the cutting edge 88 causes the rear end face W-2 of the workpiece W to come twice, that is, once the turning trajectories of the grip wheel 42 and the cutting wheel 71 start to overlap each other. When you do it again, you cut twice.

The workpiece W 'thus cut is continuously rotated to reenter the loading position, and is opened by the opening cylinder 44 when aligned with the loading groove 33 as described above, and then the loading groove 33 ) Collides with the work W, which is newly loaded by the striking cylinder 35, and is separated into the recovery box 80. The work W 'discharged to the recovery box 80 is transferred to and stored in a separate container via the recovery box 80 to finish a series of end surface cutting processes.

As described above, according to the single-ended end surface continuous cutting machine of the present invention, in processing a short rod-shaped workpiece, that is, the end surface of the single rod, a series of end surface cutting processes such as workpiece input, loading, gripping, cutting and discharging are continuously performed as a consistent process. As a result, it is possible to drastically reduce the labor time and time compared to the conventional method of relying on manual work, as well as to secure work safety and convenience, and ultimately improve the productivity of single end cutting work. Will be.

Claims (4)

A plurality of legs (11) attached to the lower side, and an upper plate (10) having a support frame (13) installed across the interval at an upper portion thereof; It is attached to one side of the support frame 13 installed on the top plate 10 is surrounded by a wall 21 to load a plurality of workpieces (W) therein, the plurality of workpieces (W) is inclined plate located at the bottom An input tray 20 which is guided to the discharge ports 25 one by one by 23 to discharge sequentially; The workpiece W discharged from the discharge port 25 is temporarily accommodated in the loading groove 33 of the loading block 31 attached to the bottom of the input tray 20, and the received in the loading block 31 A loading part 30 which strikes one end surface W-1 of the work piece W by a blow cylinder 35 provided coaxially with the loading groove 33 so as to detach the work piece W in the axial direction; A gripping portion 40 rotatably installed adjacent to the loading block 31 for gripping and rotating the workpiece W sequentially separated from the loading groove 33; The other end surface (W-2) of the plurality of the workpiece (W) which is rotatably installed adjacent to the holding portion 40 and rotated at a low speed while being conveyed by the holding portion 40 and sequentially transferred Cutting part 70; Proximal cutting discharged from the gripper 40 due to a collision with the workpiece W, which is installed adjacent to the striking cylinder 35 on the opposite side of the gripper 40 and is separated from the loading part 30. A retrieval box 80 for temporarily receiving the work W '; And The workpiece in the loading part 30 by operating the striking cylinder 35 when it is detected by the detection sensor 91 installed adjacent to the holding part 40 that the holding part 40 is in the loading position. Single end end continuous cutting machine, characterized in that consisting of; control unit 90 to strike the (W) to be loaded in the holding portion (40). According to claim 1, The gripping portion 40, A drive motor 41 installed under the upper plate 10 as a drive source; The work W is gripped and rotated by a plurality of fixed gripping holes 49 mounted on the top plate 10 so as to be rotatable by a driving force transmitted from the driving motor 41 and circumferentially penetrating the edge portion. A holding wheel 42 for conveying; The gripping wheel 42 is connected to the driving shaft 53 of the driving motor 41 and the rotation shaft 54 of the gripping wheel 42 to transmit the rotational force of the driving motor 41 to the gripping wheel 42. Power transmission means for rotating the 43; And The workpieces W and W 'inserted into the fixed gripping holes 49 are opened and closed by opening and closing the fixed gripping holes 49 of the gripping wheels 42 mounted on the support frame 13 to reach the loading position. Single cylinder end surface continuous cutting machine, characterized in that consisting of; The method of claim 2, The gripping wheel 42, A pair of discs 47 and 48 connected by a coaxial hub 45 interposed therebetween; A plurality of grippers (51) inserted between the pair of discs (47, 48) to enable elastic movement in the radial direction; And A resilient spring 61 inserted radially into the hub 45 to elastically support the lower end of the grip 51; The grip 51 is, A flow gripping hole 52 penetrated thereon to cooperate with the fixed gripping hole 49 of the pair of discs 47 and 48 to grip / release the work W and W '; And And a locking slot 55 penetrated in the longitudinal direction below the flow gripping hole 52. The pair of discs 47 and 48, A plurality of locking pins 57 protruding in one-to-one correspondence in the radial direction of the fixed gripping hole 49 and inserted into the locking slots 55, respectively; And And a plurality of guide pins (58) protruding between the plurality of fixed gripping holes (49) to guide the radial movement of the gripping (51). According to claim 1, The cutting unit 70, A drive motor 72 installed under the upper plate 10 as a drive source; A cutting wheel 71 installed adjacent to the gripping wheel 42 and at least partially overlapping the rotation wheel on the upper plate 10 so as to reversely rotate at high speed by a rotation driving force transmitted from the driving motor 72; And The cutting wheel 71 is connected to the driving shaft 73 of the driving motor 72 and the rotating shaft 74 of the cutting wheel 71 to transmit the rotational force of the driving motor 72 to the cutting wheel 71. Single end end continuous cutting machine, characterized in that consisting of;

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