US3779155A

US3779155A - Plural-slide transfer pressing apparatus

Info

Publication number: US3779155A
Application number: US00213409A
Authority: US
Inventors: E Ohno
Original assignee: Komatsu Ltd
Current assignee: Komatsu Ltd
Priority date: 1970-12-31
Filing date: 1971-12-29
Publication date: 1973-12-18
Anticipated expiration: 1990-12-18
Also published as: AU472149B2; AU4797172A; DE2165365A1

Abstract

Plural-slide transfer pressing apparatus wherein a plurality of single action presses are connected right and left at their bed portions, a transmitting shaft provided on a crown of one of the presses and a transmitting shaft provided on a crown of the other press are connected with flexible couplings, both of the presses are driven or stopped by a clutch and a brake provided in one press, and moreover a transfer bar provided across both of the presses is driven by the rotating force taken from either one of main gears provided in a crown of one of the presses.

Description

[4 1 Dec. 18,1973

1 1 PLURAL-SLIDE TRANSFER PRESSING APPARATUS [75] Inventor:

[73] Assignee: Kabushiki Kaisha Komatsu Seisakusho, Tokyo-to, Japan 22 Filed: Dec. 29, 1971 21 Appl. No.: 213,409

Eiji Ohno, Komatsu, Japan [30] Foreign Application Priority Data Heiberger 100/207 X FOREIGN PATENTS OR APPLICATIONS 967,056 8/1964 Great Britain 100/207 1,169,524 11/1969 Great Britain 100/207 Primary ExaminerWayne A. Morse, Jr. Assistant Examiner-Arthur 0. Henderson Att0rneyDavid Toren et a1.

[57] ABSTRACT Plural-slide transfer pressing apparatus wherein a plurality of single action presses are connected right and left at their bed portions, a transmitting shaft provided on a crown of one of the presses and a transmitting shaft provided on a crown of the other press are connected with flexible couplings, both of the presses are driven or stopped by a clutch and a brake provided in one press, and moreover a transfer bar provided across both of the presses is driven by the rotating force taken from either one of main gears provided in a crown of one of the presses.

2 Claims, 4 Drawing Figures PATENIH] DEE] 81373 SHEET 2 BF 3 FIG. 3

FIG. 2

I N VEN TOR. Z r/ mwo PAIENIEBBEB! 8I975 a. 779, 155

SHEETSBFI! 1 N VENT OR.

I? arm PLURAL-SLIDE TRANSFER PRESSING APPARATUS BACKGROUND OF THE INVENTION In the multi-slide transfer presses of the prior art, they are constituted by three columns which results in their large size, and they are not constituted so as to be taken apart easily. Accordingly, their transport is much restricted, that is, there is much difficulty with them in that they are too long on right and left to put in a freight car and they are so heavy that they cannot be taken apart conveniently for the purpose of constructing at the destination.

The present invention furnishes a pressing apparatus which is characterized in that each single action press is alined right and left, the bed portions of each single action press is firmly connected, the transmitting shaft driving system is substantially the same, the transmitting shaft driving system can be separated to each single action press driving system, and a transfer bar provided across both of single-action presses is driven by the rotating force taken from the main gear of one single action press.

SUMMARY OF THE INVENTION The present invention relates to a transfer pressing apparatus comprising plural slides.

The object of the present invention is to provide a transfer pressing apparatus comprising plural slides which is made separable to each single action press very easily, thereby their transport is very convenient.

Another object of the present invention is to provide a plural-slide transfer pressing apparatus which is able to drive and stop each single action press by one set of a clutch and a brake, a driving system of one single action press being the same as that of the other.

Still another object of the present invention is to provide a plural-slide transfer pressing apparatus wherein a transfer bar extending over both single action presses is driven by the rotating force taken from a main gear furnished in one single action press of the plural single action presses.

Further object of the present invention is to provide a plural-slide transfer pressing apparatus in which one single action press having a comparatively large capacity and another having a comparatively small capacity are connected together right and left at each of their bed portions, a transmitting shaft of one single action press is extended above the other press, control of both the presses is made by a set of a clutch and a brake, and at the same time a transfer bar provided extending over both of the presses is made to drive freely by the rotating force from one of the main gears.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a pressing apparatus, according to the present invention, partly removed and shown in longitudinal cross section,

FIG. 2 is a sectional view shown along a line II-II in FIG. 1,

FIG. 3 is a sectional view along a line III-III in FIG. 1, and

FIG. 4 is a detailed view of parts where the bed of the press A and that of the press B are firmly connected.

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described referring to an embodimental example. A transmitting shaft 4 is supported by bearings 2 and 3 provided on a crown 1 of the large capacity press A. A clutch 5 is provided at the end of said transmitting shaft 4, and there is provided a brake 6 on the transmitting shaft 4 between the bearings 2 and 3. A pinion 7 is mounted on the transmitting shaft 4 between the bearing 2 and the brake 6. On the crown l, a driving shaft 12 is supported by bearings 8, 9, 10, and 11. On the driving shaft 12, a pinion 13 is fixed between bearings 8 and 9, a gear 14 is fixed I between bearings 9 and 10, a pinion 15 is fixed between bearings 10 and 11. The pinion 7 is engaged with the gear 14, when the motor 16 mounted on the crown 1 is actuated and the clutch 5 is set, the brake 6 is cut, the transmitting shaft 4 is rotated, thereby, the driving shaft 12 is rotated through the pinion 7 and gear 14. A main gear 20 is fixed on a main shaft 19 supported by mounting portions 17 and 18 provided inside the crown 1.

The main gear 20 consists of gear portion 21 and the eccentric circular plate portion 22 formed at one side of the gear portion 21. The centre of the gear portion 21 is alined with the centre of the main shaft 19, but the centre of the eccentric circular plate portion 22 is made eccentric by a predetermined distance from the centre of the main shaft 19.

A linklever 23 is connected with the main gear 20 by means of a circular fitting portion 24 formed on the upper portion of the link-lever 23 and which fits on the outer periphery of the eccentric circular plate portion 22. The inner peripheral surface of the circular fitting portion 24 is made so as to slide in the peripheral direction against the outer peripheral surface of the eccentric circular plate portion 22.

An inserting hole 25 is provided in the lower portion of the link-lever 23. On the lower portion of the crown 1, there is a cylindrical guiding member 26. A connecting rod 27, which is made so as to slide upward and downward against the inner surface of the cylindrical guiding member 26, is connected with the link-lever 23 by means of the upper portion of the connecting rod 27 connected to the lower portion of the link-lever 23 by a pin 28. The lower end of the connecting rod 27 is fixed to the upper portion of the slide 29.

In the same manner as mentioned before, a main shaft 32 is fixed at each end by a mounting portions 30 and 31. A main gear 33 is mounted rotatably on the main shaft 32, a circular fitting portion 36 of a linklever 35 is fitted so as to slide with an eccentric circular plate portion 34 of the main gear 33, the link-lever 35 is connected with the connecting rod 38 by a pin 37, the lower end of the connecting rod 38 is fixed on the upper portion of the slide 29, and the upper portion of the connecting rod 38 is able to slide upwardly and downwardly against the inner surface of a cylindrical guide member 39, which is provided at the lower portion of the crown l.

A die mounting member 40 is mounted on the lower portion of the slide 29, and a knock out mechanism 41 is provided on the inside of the slide 29. Numeral 42 is a balancer. In the press A, the crown 1,

uprights

43, 43, and bed 44 are connected by tightly four

tie rods

45, 45, and

nuts

46, 47 fitted with the upper end and lower end of each

tie rod

45, 45.

Next, in the small capacity press B, a driving shaft 54 is supported by bearing

portions

49, 50, 51, 52 and 53 provided on a crown 48. A pinion 55, gear 56 and pin- 7 ion 57 are fixed on the driving shaft 54 respectively. A

transmitting shaft 60 is supported by hearing portions 58 and 59 provided on the crown 48. A pinion 61 fixed the transmitting shaft 60 is engaged with the gear 56.

An end portion of the transmitting shaft 60, projecting from the bearing portion 59, is connecting with a left end portion of an inter-connecting shaft 62 by means of a flexible coupling 63, and an end portion of the transmitting shaft 64 projecting from the bearing portion 2 on the crown 1 of the press A is connecting with a right end portion of the inter-connecting shaft 62 by a flexible coupling 64. Accordingly, when the transmitting shaft 4 is rotated by setting of the clutch and disengaging of the brake 6, the rotating force is transmitted to the transmitting shaft of the press B side through the flexible coupling 64, inter-connecting shaft 62 and flexible coupling 63. Thus, the transmitting shaft 4 of the press A is substantially the same shaft as the transmitting shaft 60 of the press B, thereby the presses A and B are controlled by the clutch 5 and the brake 6.

Inside of the crown 48 of the press B, there is a main shaft 67 supported by hearing

portions

65 and 66. A main gear 68 fitted on the main shaft 67 is engaged with the pinion 55. An eccentric circular plate portion 69 of the main gear 68 is fitted with the circular fitting portion 71 of a link-lever 70. In this case, the outer peripheral surface of the eccentric circular plate portion 69 is made so as to slide in the peripheral direction against the inner peripheral surface of the circular fitting portion 71.

The link-lever 70 is connected with a connecting rod 73 by a pin 72, the connecting rod '73 is able to slide upwardly and downwardly within a cylindrical guiding member 74 provided at the lower portion of the crown 48, and the lower end of the connecting rod 73 is fixed to the upper portion of a slide 75.

In the same manner, on a main shaft '77 supported by bearing

portions

76, 76 is fitted with a main gear 78, and main gear 78 engages the pinion 57 mounting on the driving shaft 54. An eccentric circular plate portion 79 of the main gear 78 is fitted so as to slide in the peripheral direction relative to a circular fitting portion 81 of a link-lever 80. The upper portion of a connecting rod 82 is connected with the lower portion of the linklever by a pin 83. The lower end of the connecting rod 82 is fixed to the upper portion of the slide 74.

In the press B, the crown 48,

uprights

84, 84 and bed 85 are connected tightly together in the upward and downward direction by four

tie rods

86, 86, and

nuts

87 and 88 fitted on the upper end and the lower end of each

tie rod

86, 86. In a left-side frame portion 89 of the bed 44 of the press A, note FIG. 4, an outer plate portion 90 and inner plate portion 91 each have four inserting holes 92, 92, 93, 93, respectively, spaced substantially equal distances apart in the upward and downward directions in front of and behind the press A. Also, in a right-side frame portion 94 of the bed 85 of the press B, an outer plate portion 95 and inner plate portion 96 each have four inserting holes 97, 97, 98, 98, respectively, spaced substantially equal distances apart in the upward and downward directions in the front of and behind the press B. Inserting holes 92, 92, 93, 93, of the left-side frame portion 89 of the bed 44 of the press A are positioned in alignment with inserting holes 97, 97, 98, 98, of the right side frame portion 94 of the bed 85 of the press B. An abutting plate 99 is fixed at the inside of the outer plate portion 90 of the bed 44 of the press A. An abuting plate 100 is fixed at the inside of the outer plate portion 95 of the bed 85 of the press B. In this case, the height of the left side frame portion 89 is equal to the height of the right side frame portion 94, so that the upper surface of the bed 85 of the press B is alined in the horizontal direction with the upper surface of the bed 44 of the press A.

Reinforcing

plates

101, 101, 101 are provided between and are fixed at their ends to the outer plate portion 90 and the inner plate portion 91. Reinforcing

plates

102, 102, 102 are provided inside of the right side frame portion 94. The reinforcing

plates

101, 101, 101 are positioned in the same horizontal planes as the corresponding reinforcing

plates

102, 102, 102.

i A left side frame portion 103 of the crown 1, left side upright 43 and left side frame portion 89 of the bed 44 in the press A are in close contact with a right side frame portion 104 of the crown 48, right side upright 84 and right side frame portion 94 of the bed 85 in the press B so that the press A and presss B are arranged in the interval facing the front. Especially, the bed 44 of the press A is connected strongly with the bed 85 of the press B. Namely, each connecting

bolt

105, 105, 105 is inserted through the inserting

holes

92, 93, 97 and 98 respectively, and

nuts

106 and 107 are fitted on the end screw portions of each connecting

bolt

105, 105, 105 projecting from the inner plate portion 91 and the inner plate portion 96, thereby the bed 44 is connected with the bed 85.

Each abutting plate 99, 100 has a

key way

108, 108 extending in the front and back directions respectively, and a key 109 is fitted into the

key way

108, 108, so that the sliding movement in the upward and downward directions between the bed 44 and the bed 85 is prevented. Also, each of the central portions of the left side frame portion 89 and the right side frame portion 94 have a key way 110, respectively.

By fitting a key 111 into the key way 110, the sliding movement in the front and back directions between the bed 44 and bed 85 is prevented. Numeral 112 is a bolster of the press A, 113 is a knock out mechanism, and 114 is a bolster of the press B.

A transfer bar actuating mechanism 115, is mounted on the left side upright 84 of the press B. The transfer bar actuating mechanism 115, is shown in FIGS. 1 and 3, and includes a gear 116 engaged with the main gear 68, a gear 117 fixed on one end of a mounting shaft 1 18 is engaged with the gear 116. A bevel gear 119 is positioned on the other end of the mounting shaft 118 and is in engagement with another bevel gear 120. The bevel gear 120 is fixed to the upper end of a vertically arranged rotating shaft 121 positioned alongside the left side upright 84. At the lower end of the rotating shaft 121 there is a bevel gear 122 which is in engagement with a bevel gear 123 mounted on a shaft 124. A cam 125 is fixed on the shaft 124. Transfer bars 127 are actuated through a crank mechanism 126 by the rotation of the cam 125 through followers in contact with its cam shaped periphery. The transfer bars 127, 127 extend from the press A to the press B, and have

fingers

128, 128 for the being transferred article.

The present apparatus is actuated as following. When the motor 16 is actuated, the clutch 5 sets and brake 6 disengaged and, the transmitting shaft 4 is rotated. Simultaneously, the transmitting shaft 60 is rotated through the coupling 64, inter-connecting shaft 62 and coupling 63. In the press A, the rotating force of the transmitting shaft 4 is transmitted to the driving shaft 12 through the pinion 7 and the gear 14, the driving shaft 12 rotates each of main gear and 33 through pinions 13, 15, respectively, and each link-lever 23, is moved in the upward and downward directions by the corresponding eccentric

circular plate portion

22, 24 of the

main gear

20, 33, each connecting rod 27, 38 is moved in the up and down directions, the slide 29 is moved in the upward and downward directions by the connecting rod 27, 38.

In the press B, the rotating force of the transmitting shaft 60 is transmitted to the driving shaft 54 through the pinion 61 and the gear 56. The

main gear

68, 78 is rotated through the pinion 55, 57, respectively, and the link-lever 70, 80 moves in the upward and downward directions, and, as a result, the connecting

rod

73, 82 is moved in the up and down directions, and the slide 75 is moved in the upward and downward directions by the connecting

rods

73, 82.

Simultaneously, the rotating force of the main gear 68 of the press B is transmitted to the rotating shaft 121 through gears 116, 117 and

bevel gears

119, 120. The cam 125 is rotated by

bevel gears

122, 123, and the transfer bars 127, 127 are actuated through the crank mechanism 126.

Both of the presses A, B can share the loads accoding to their capacity ranges, that is, heavy load processes such as coining are alloted to the press A which has a large capacity, and light load processes such as piercing or trimming are alloted to the press B which has a small capacity. As a result, both of the presses can be operated at their highest efficiencies. Furthermore, both of the presses can be driven simultaneously by operation of the clutch 5 and the brake 6. Particularly, both of the presses are fixed to one another at their beds, thus preventing lateral shifting, and at the same time, the transmitting shaft of the press A is connected with the transmitting shaft of the press B through flexible couplings and inter-connecting shaft, so that relative motion between the upper portions of the presses is allowed so that damage can be prevented, and pressing operations can be carried out at high efficiency by means of the transfer bar on both of the press A and B by the rotating force introduced from the main gear.

When the plural-slide transfer pressing apparatus according to the present invention is to be transported, both of the presses can be disassembled into singleaction presses by taking off the couplings and connecting bolts which connect the beds of each press A, B,

and these can be further separated into small parts, so that they can be transported quite safely. In operation, there is the advantage that each of the presses can operate the works which are the most appropriate for their specific capacities.

What is claimed is:

l. A plural-slide transfer pressing apparatus comprising at least two single action presses, each said press comprises a frame including a crown, uprights, and a bed, a slide arranged to move up and down in each said frame, said frames are arranged in side-by-side relationship and said bed portions thereof are firmly connected together, a transmitting shaft provided on said crown of each said press, means including flexible couplings arranged for interconnecting said transmitting shafts, a main gear provided in said crown of each said press, a drive system in each said press in engagement with said transmitting gear and said main gear therein for driving said main gear from said transmitting gear, a clutch and a brake arranged to control said transmitting gear, transfer bars extending across both of said presses, a cam, means for rotating said cam from said main gear of one of said presses, and a crank mechanism interconnecting said cam and said transfer bars for driving said transfer bars.

2. A plural-slide transfer pressing apparatus comprising at least two single action presses, each said press comprises a frame including a crown, uprights, and a bed, a slide arranged to move up and down in each said frame, said frames are arranged in side-by-side relationship and said bed portions thereof are firmly connected together, a transmitting shaft provided on said crown of each said press, means including flexible couplings arranged for interconnecting said transmitting shafts, a main gear provided in said crown of each said press, a drive system in each said press in engagement with said transmitting gear and said main gear therein for driving said main gear from said transmitting gear, a clutch and a brake arranged to control said transmitting gear, transfer bars extending across both of said presses, a cam, means for rotating said cam from said main gear of one of said presses, a crank mechanism interconnecting said cam and said transfer bars for driving said transfer bars, each said bed of said frames having a side frame portion, each said side frame portion including an upwardly extending inner plate portion and an upwardly extending outer plate portion disposed in spaced relation and a plurality of connecting bolts extending through said inner and outer plate portions of said side frames for fixing said presses together. l= a:

Claims

1. A plural-slide transfer pressing apparatus comprising at least two single action presses, each said press comprises a frame including a crown, uprights, and a bed, a slide arranged to move up and down in each said frame, said frames are arranged in side-by-side relationship and said bed portions thereof are firmly connected together, a transmitting shaft provided on said crown of each said press, means including flexible couplings arranged for interconnecting said transmitting shafts, a main gear provided in said crown of each said press, a drive system in each said press in engagement with said transmitting gear and said main gear therein for driving said main gear from said transmitting gear, a clutch and a brake arranged to control said transmitting gear, transfer bars extending across both of said presses, a cam, means for rotating said cam from said main gear of one of said presses, and a crank mechanism interconnecting said cam and said transfer bars for driving said transfer bars.

2. A plural-slide transfer pressing apparatus comprising at least two single action presses, each said press comprises a frame including a crown, uprights, and a bed, a slide arranged to move up and down in each said frame, said frames are arranged in side-by-side relationship and said bed portions thereof are firmly connected together, a transmitting shaft provided on said crown of each said press, means including flexible couplings arranged for interconnecting said transmitting shafts, a main gear provided in said crown of each said press, a drive system in each said press in engagement with said transmitting gear and said main gear therein for driving said main gear from said transmitting gear, a clutch and a brake arranged to control said transmitting gear, transfer bars extending across both of said presses, a cam, means for rotating said cam from said main gear of one of said presses, a crank mechanism interconnecting said cam and said transfer baRs for driving said transfer bars, each said bed of said frames having a side frame portion, each said side frame portion including an upwardly extending inner plate portion and an upwardly extending outer plate portion disposed in spaced relation and a plurality of connecting bolts extending through said inner and outer plate portions of said side frames for fixing said presses together.