CN220005716U - Punch press loading attachment - Google Patents

Abstract

The utility model discloses a feeding device of a punch press, which comprises a carrying table, wherein a carrying surface which is horizontally arranged is arranged on the carrying table; the pushing assembly is positioned above the carrying platform and comprises a pushing frame and a reciprocating pressing mechanism for applying force to the pushing frame; the pushing frame is a parallel four-bar mechanism and comprises a first plate body, a second plate body and a pair of guide plates, wherein the first plate body and the second plate body are opposite to each other; the first plate body is provided with a pushing wheel which is turned to be single, the second plate body is connected with the output end of the reciprocating pressing mechanism, and an adjustable limiting mechanism for limiting the swinging angle of the guide plate is arranged between the second plate body and at least one guide plate. According to the utility model, the limiting mechanism is arranged to limit the swing angle of the guide plate, so that a gap is automatically reserved between the bottom end of the pushing wheel and the loading surface, and the feeding difficulty is reduced.

Description

Punch press loading attachment

Technical Field

The utility model relates to the technical field of punching machines, in particular to a feeding device of a punching machine.

Background

The design principle of the punching machine, also called punching press, is that the circular motion is converted into the linear motion, the flywheel is driven by the main motor to rotate, and the parts such as gears, crankshafts, connecting rods and the like are driven by the clutch to run, so that the linear motion of the sliding block is realized, and the sliding block drives the die to finish the punching production of the workpiece.

The production efficiency of the punching machine is positively related to the automation degree of the punching machine, the continuous production efficiency of the full-automatic punching machine is highest, but the equipment use and maintenance cost is higher, so that a large number of common punching machines still exist on the market, the common punching machines are more dependent on manual operation, particularly in the aspect of feeding, raw materials processed by the punching machines are rectangular metal sheets, the positions of the plates are required to be manually and continuously adjusted, the punching heads of the punching machines are punched at proper positions, the processing efficiency is low and unstable, and in this way, the Chinese patent publication No. CN216065247U discloses a continuous feeding device for the punching machine, which can realize continuous feeding by repeatedly extruding a pushing frame through a cylinder and continuously pushing the metal sheets by matching with a pushing mechanism which rotates unidirectionally.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects of inconvenient feeding and manual adjustment of the continuous feeding device for the punch press, thereby providing the feeding device for the punch press.

In order to solve the technical problems, the utility model provides a feeding device of a punch press, which comprises a carrying platform, wherein a carrying surface which is horizontally arranged is arranged on the carrying platform; the pushing assembly is positioned above the carrying table and comprises a pushing frame and a reciprocating pressing mechanism for applying force to the pushing frame; the pushing frame is a parallel four-bar mechanism and comprises a first plate body, a second plate body and a pair of guide plates, wherein the first plate body and the second plate body are opposite to each other; the first plate body is provided with a pushing wheel which is single in steering, the second plate body is connected with the output end of the reciprocating pressing mechanism, and an adjustable limiting mechanism for limiting the swinging angle of the guide plate is arranged between the second plate body and at least one guide plate; the adjustable limiting mechanism comprises a stop block and an adjustable supporting block, and the adjustable supporting block is abutted with the stop block through a selected gear.

Through above-mentioned scheme, by reciprocal pressing mechanism reciprocal extrusion pushing away the work or material rest, make pushing away the work or material rest and take place deformation repeatedly and produce static friction by pushing away the locking of material wheel and promote the flitch and advance, and through setting up the biggest contained angle between adjustable stop gear restriction deflector and the second plate body, make to push away automatic reservation play between material wheel bottom and the loading face, reduce the feeding degree of difficulty.

Optionally, the stop block is disposed at one end of the guide plate hinged to the second plate body and biased outwards, and the adjustable support block includes a polygonal block eccentrically and rotatably connected to the second plate body, and an axis of the polygonal block is perpendicular to an upper surface of the second plate body.

Optionally, the dog sets up on the second plate body, adjustable supporting shoe includes locating shaft and polygon piece, the locating shaft sets up the deflector articulates the one end of second plate body and outwards bias, polygon piece is eccentric, rotationally connects on the locating shaft, all be equipped with the card hole on every circumference side of polygon piece, be equipped with the elasticity butt on the locating shaft the spring buckle of card hole.

Optionally, the material of the stop block is gray cast iron or plastic.

Further, reciprocating press mechanism includes the motor, the output of motor is connected with the runner, the runner eccentric hinge has the push rod, still includes the guide rail, the guide rail is positioned push away work or material rest top, sliding connection has the slider in the guide rail, the one end of slider with the bottom of push rod is articulated, the other end of slider is connected the top of second plate body presses, and current cylinder relatively presses, and the motion track is more steady, and should not change, and changes through the adjustment motor rotational speed and press the frequency, adapt to high frequency punching press production in a flexible way.

Further, a slot hole is formed in the second plate body, the pushing wheel is installed in the slot hole and comprises a supporting shaft and a one-way bearing, the supporting shaft is fixedly connected in the slot hole, an inner ring of the one-way bearing is connected to the supporting shaft, and a rubber wheel sleeve is arranged on an outer ring of the one-way bearing.

Further, the automatic feeding device also comprises a plurality of rollers with parallel axes, wherein a conveyor belt is connected with the rollers in a common unpowered mode, and the loading surface is defined on the upper top surface of the conveyor belt.

Compared with the prior art, the utility model has the advantages that:

1. the swing angle of the guide plate is limited by arranging the adjustable limiting mechanism, so that a feeding gap is formed between the bottom end of the pushing wheel and the loading surface in a stop state, the feeding difficulty is reduced, and potential safety hazards are eliminated;

2. the adjustable supporting block is provided with a plurality of working surfaces, and the feeding gap between the bottom end of the pushing wheel and the loading surface can be flexibly adjusted according to the thickness of different material plates;

3. the reciprocating pressing mechanism is realized by a motor matched with the sliding block, the output power is high, the return stroke is quick, and the movement process is more balanced.

Drawings

FIG. 1 is a schematic perspective view of a feeding device of a punching machine according to the present utility model when the feeding device is applied to the punching machine;

fig. 2 is a schematic perspective view of a first embodiment of a feeding device of a punching machine according to the present utility model;

FIG. 3 is a schematic structural view of a polygonal block in a first embodiment of a feeding device of a punching machine according to the present utility model;

fig. 4 is a schematic perspective view of a second embodiment of a feeding device of a punching machine according to the present utility model;

FIG. 5 is a cross-sectional view of a polygonal block in a second embodiment of a punch press loading apparatus according to the present utility model;

FIG. 6 is a schematic view of a positioning shaft in a second embodiment of a feeding device of a punching machine according to the present utility model;

reference numerals: 1. a material carrying table; 11. a loading surface; 12. a roller; 13. a conveyor belt; 2. a material plate; 3. a pushing frame; 31. a first plate body; 32. a second plate body; 33. a guide plate; 34. a slot hole; 4. a reciprocating pressing mechanism; 41. a motor; 42. a rotating wheel; 43. a push rod; 44. a slide block; 45. a guide rail; 5. a pushing wheel; 51. a support shaft; 52. a one-way bearing; 53. a rubber wheel sleeve; 6. an adjustable stop mechanism; 61. a stop block; 62. an adjustable support block; 621. a polygonal block; 622. a bolt; 623. an eccentric hole; 624. positioning a shaft; 625. a clamping hole; 626. a spring buckle; 7. and (5) punching.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model is described in further detail below with reference to the accompanying drawings:

the specific implementation mode of the utility model is as follows:

as shown in fig. 1, a feeding device of a punch press 7 comprises a carrying platform 1, wherein a carrying surface 11 which is horizontally arranged and used for placing a material plate 2 is arranged on the carrying platform 1, a pushing component is positioned above the carrying surface 11, the pushing component comprises a pushing frame 3 which is longitudinally extruded and can horizontally and transversely deform and a reciprocating pressing mechanism 4 used for applying force to the pushing frame 3, the bottom end of the pushing frame 3 is provided with a pushing wheel 5 which is unidirectionally rotated and used for pushing the material plate 2, the material plate 2 is placed on the carrying surface 11 in working, and the telescopic end of the reciprocating pressing mechanism 4 is connected to the pushing frame 3 and longitudinally extrudes the pushing frame 3 in a reciprocating lifting manner, so that the pushing frame 3 horizontally and transversely stretches and pushes the material plate 2 to the punch press 7 through the pushing wheel 5, and continuous feeding is realized.

Referring to fig. 2, the pushing frame 3 is integrally a parallel four-bar mechanism, and includes a first plate 31 and a second plate 32 opposite to each other, the second plate 32 is located above the first plate 31, two sets of guide plates 33 opposite to each other are disposed between the first plate 31 and the second plate 32, bottom ends of the two sets of guide plates 33 are hinged to two ends of the first plate 31, top ends of the two sets of guide plates 33 are hinged to two ends of the second plate 32, so that the first plate 31, the second plate 32 and the guide plates 33 form a parallelogram frame easy to deform, when the reciprocating pressing mechanism 4 drives the second plate 32 to vertically lift, the guide plates 33 swing relative to the second plate 32 to apply pressure to the first plate 31 and drive the latter to horizontally and transversely move relative to the loading surface 11, and in addition, the process is stable and smooth, by increasing the number of sets of guide plates 33, the strength and stability of the pushing frame 3 during operation can be further increased.

Referring to fig. 2, the reciprocating pressing mechanism 4 includes a motor 41 mounted at the top end of a frame, a rotating wheel 42 is provided at the output end of the motor 41, a push rod 43 is eccentrically hinged to the rotating wheel 42, a slider 44 is hinged to the end of the push rod 43 far away from the rotating wheel 42, and a guide rail 45 for positioning and longitudinally sliding the slider 44 is provided on the frame. During operation, the motor 41 rotates and drives the sliding block 44 to longitudinally slide in the guide rail 45 through the rotating wheel 42 and the push rod 43, stable and large thrust can be output to the pushing frame 3, and during operation, the motor 41 drives the rotating wheel 42 to eccentrically rotate, so that non-intermittent operation can be realized, and further, the pushing frame 3 can be subjected to high-frequency reciprocating horizontal transverse deformation, and high-speed continuous feeding can be realized.

The first plate body 31 is provided with a plurality of slotted holes 34, at least one group of pushing wheels 5 are arranged in each slotted hole 34, each pushing wheel 5 comprises a supporting shaft 51, two ends of each supporting shaft 51 are connected to two ends of each slotted hole 34, each supporting shaft 51 is provided with a one-way bearing 52, an inner ring of each one-way bearing 52 is sleeved on the outer surface of each supporting shaft 51, and a rubber wheel sleeve 53 is arranged on the outer ring of each one-way bearing 52. The principle that the pushing wheel 5 realizes unidirectional rotation and pushes the material plate 2 through unidirectional axial direction is as follows: when the pushing frame 3 is extruded by the reciprocating pressing mechanism 4 to transversely deform, the one-way bearing 52 can be used for self-locking to limit the pushing wheel 5 to rotate, at the moment, the rubber wheel sleeve 53 of the pushing wheel 5 is directly abutted against the material plate 2 and pushes the material plate 2 under the action of static friction, and when the reciprocating pressing mechanism 4 drives the pushing frame 3 to reset, the one-way bearing 52 is automatically unlocked, the pushing wheel 5 is in rolling contact with the material plate 2 in the rollback process and cannot apply thrust to the material plate 2, so that section-by-section feeding is realized, and the feeding length is uniform and the error is smaller every time. The unidirectional bearing 52 is relatively common, is easy to obtain and has low manufacturing cost, and according to the replacement principle, the unidirectional rotation of the pushing wheel 5 can be realized through a unidirectional structure such as a ratchet wheel.

The loading surface 11 can be a fixed platform, but in order to reduce the resistance when the pushing frame 3 pushes materials, in this embodiment, the loading platform 1 is connected with a plurality of groups of rollers 12 and a group of conveyor belts 13, the rollers 12 are rotatably connected to the loading platform 1, the conveyor belts 13 are adapted to be arranged on the outer walls of the plurality of groups of rollers 12, the loading surface 11 is defined on the upper top surface of the conveyor belts 13, so that the loading surface 11 is movable, and during working, the pushing plate 2 can generate static friction force between the material plate 2 and the conveyor belts 13 through extruding the material plate 2, so that the conveyor belts 13 move to drive the material plate 2 to move, the labor is saved, the material plate 2 is not easy to slip, and the feeding precision is higher.

As shown in fig. 2 and 3, the most improvement of the present utility model is that: an adjustable limiting mechanism 6 for limiting the backswing angle of the guide plate 33 is arranged between the second plate body 32 of the pushing frame 3 and at least one group of guide plates 33, the adjustable limiting mechanism 6 comprises a stop block 61 and an adjustable supporting block 62, the stop block 61 is arranged at one end of the guide plate 33 hinged with the second plate body 32 and is biased outwards, the corresponding adjustable supporting block 62 is arranged on the upper surface of the second plate body 32, when the reciprocating pressing mechanism 4 is in a stop state, the adjustable supporting block 62 prevents the guide plate 33 from excessively backswing through abutting the stop block 61, the first plate body 31 and the pushing wheel 5 are supported, so that the pushing wheel 5 hovers above the carrying surface 11, a feeding gap for the feeding plate 2 to enter is reserved between the carrying surface 11 and the pushing wheel 5, and accordingly the effects of reducing feeding difficulty and potential safety hazards are achieved.

Considering that the above-mentioned feeding gaps are different for different material plates 2, in order to improve the adaptation degree and the application range of the adjustable limiting mechanism 6, the adjustable supporting block 62 is provided with a plurality of gears, corresponding to different feeding gaps, specifically: the adjustable supporting block 62 comprises a polygonal block 621 and a bolt 622, wherein an eccentric hole 623 for adapting to the bolt 622 is formed in the polygonal block 621, and when the adjustable supporting block is used, the polygonal block 621 can be detachably mounted on the second plate body 32 through the eccentric hole 623 by the bolt 622, and one side surface corresponding to the polygonal block 621 can be turned to the stop block 61 according to the actual thickness of the material plate 2, so that multistage adjustment is realized. In addition, according to the replacement principle, the bolt 622 may be replaced by a fastener, such as a pin, a buckle, or the like, which can achieve the detachable connection, and after reading the present embodiment, those skilled in the art should be able to conceive that the stop 61 is disposed on the guide plate 33, and the technical features of the polygonal block 621, the bolt 622, etc. are disposed on the second plate 32, so that the possible technical solutions will not be repeated in the present embodiment.

Considering that the adjustable support block 62 is detachably connected by the bolt 622 to achieve the rotatable adjustment of the polygonal block 621 in the above embodiment, each adjustment requires re-tightening the bolt 622, which is inefficient and laborious, so that this embodiment provides another embodiment of the feeding device of the punching machine, as shown in fig. 4, 5 and 6, the second embodiment is different from the first embodiment in that: the adjustable supporting block 62 comprises a positioning shaft 624 and a polygonal block 621 rotatably connected to the positioning shaft 624, the positioning shaft 624 is arranged at one end of the guide plate hinged to the second plate body and is biased outwards, the polygonal block 621 is eccentrically and rotatably connected to the positioning shaft 624, each circumferential side of the polygonal block 621 is provided with a clamping hole 625, the positioning shaft 624 is provided with a spring buckle 626 elastically abutted against the clamping hole 625, when in use, the spring buckle 626 on the positioning shaft 624 can elastically abut against the inner clamping hole 625 on the corresponding side of the polygonal block 621 under the action of self elastic pre-tightening force, so that the polygonal block 621 is fixed, and when the thickness of a feeding gap needs to be adjusted, only torque needs to be applied to the polygonal block 621 and the elastic resistance of the spring buckle 626 is overcome, the corresponding side of the polygonal block 621 can be rotated to face the stop block 61, and the positioning can be completed again by the spring buckle 626 abutting against the new side inner clamping hole 625.

The stop block 61 is made of gray cast iron or plastic, so that the effects of buffering and noise reduction can be achieved, and the abrasion of the adjustable support block 62 to the stop block 61 is reduced.

The above embodiments are merely illustrative embodiments of the present utility model, but the technical features of the present utility model are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present utility model are included in the scope of the present utility model.

Claims (7)

1. A feeding device of a punching machine, which is used for continuously conveying a feeding plate (2), and is characterized by comprising a carrying table (1), wherein a carrying surface (11) which is horizontally arranged is arranged on the carrying table (1);

a pushing assembly positioned above the loading table (1) and comprising a pushing frame (3) and a reciprocating pressing mechanism (4) for applying force to the pushing frame (3);

wherein the pushing frame (3) is a parallel four-bar mechanism and comprises a first plate body (31) and a second plate body (32) which are opposite to each other and a pair of guide plates (33) which are opposite to each other; the first plate body (31) is provided with a pushing wheel (5) which is single in steering, the second plate body (32) is connected with the output end of the reciprocating pressing mechanism (4), and an adjustable limiting mechanism (6) for limiting the backswing angle of the guide plate (33) is arranged between the second plate body (32) and at least one guide plate (33); the adjustable limiting mechanism (6) comprises a stop block (61) and an adjustable supporting block (62), and the adjustable supporting block (62) is abutted with the stop block (61) through a selected gear.

2. The punch press feeding device of claim 1, wherein: the stop block (61) is arranged at one end of the guide plate (33) hinged to the second plate body (32) and is biased outwards, the adjustable supporting block (62) comprises a polygonal block (621), the polygonal block (621) is eccentrically and rotatably connected to the second plate body (32), and the axis of the polygonal block (621) is perpendicular to the upper surface of the second plate body (32).

3. The punch press feeding device of claim 1, wherein: the stop block (61) is arranged on the second plate body (32), the adjustable supporting block (62) comprises a positioning shaft (624) and a polygonal block (621), the positioning shaft (624) is arranged on the guide plate (33) to be hinged with one end of the second plate body (32) and is biased outwards, the polygonal block (621) is eccentrically and rotatably connected onto the positioning shaft (624), a clamping hole (625) is formed in each circumferential side surface of the polygonal block (621), and a spring buckle (626) elastically abutted to the clamping hole (625) is arranged on the positioning shaft (624).

4. A punch press feeding device as claimed in claim 1 or 2 or 3, wherein: the material of the stop block (61) is gray cast iron or plastic.

5. A punch press feeding device as claimed in claim 1 or 2 or 3, wherein: the reciprocating pressing mechanism (4) comprises a motor (41), the output end of the motor (41) is connected with a rotating wheel (42), the rotating wheel (42) is eccentrically hinged with a push rod (43), the reciprocating pressing mechanism further comprises a guide rail (45), the guide rail (45) is positioned above the pushing frame (3), a sliding block (44) is slidably connected in the guide rail (45), one end of the sliding block (44) is hinged with the bottom end of the push rod (43), and the other end of the sliding block (44) is connected with the top end of the second plate body (32).

6. A punch press feeding device as claimed in claim 1 or 2 or 3, wherein: be equipped with the cell body on second plate body (32), push away material wheel (5) and install in the cell body, push away material wheel (5) including back shaft (51) and one-way bearing (52), back shaft (51) fixed connection in the cell body, the inner circle of one-way bearing (52) connect in on back shaft (51), in the outer lane of one-way bearing (52) is provided with rubber wheel cover (53).

7. A punch press feeding device as claimed in claim 1 or 2 or 3, wherein: the material carrying table (1) is provided with a plurality of groups of rollers (12), the rollers (12) are connected with a conveyor belt (13) in a common unpowered mode, and the material carrying surface (11) is defined on the upper top surface of the conveyor belt (13).