WO2018014462A1

WO2018014462A1 - Apparatus for automatic adjustment of sheet material pressing mold of edge folding machine

Info

Publication number: WO2018014462A1
Application number: PCT/CN2016/104260
Authority: WO
Inventors: 涂芬芬; 王金荣; 桂长华; 佘杰; 冷志斌
Original assignee: 江苏亚威机床股份有限公司
Priority date: 2016-07-20
Filing date: 2016-11-01
Publication date: 2018-01-25
Also published as: CN105945156B; CN105945156A

Abstract

An apparatus for the automatic adjustment of a sheet material pressing mold of an edge folding machine, comprising a mold base (1), a mold-adjustment facilitation mechanism (2) mounted on a middle portion of a lower end of the mold base (1), an insertion-type mold adjusting mechanism (3) mounted on the mold base (1) and provided at each of the left and right sides of the mold-adjustment facilitation mechanism (2), and a standard mold adjusting mechanism (4) provided at each of the left and right ends of the mold base (1), the lower end of the mold base (1) being a trapezoidal guide rail. The automatic adjustment apparatus for the sheet material pressing mold of an edge folding machine has a simple structure and is easy to operate; in the case of a flanged workpiece, the adjustable mold can narrow the width to an extent, and be restored when the workpiece is clamped, the standard mold adjusting mechanism can achieve the adjustment with a large width variation, and the insertion-type mold adjusting mechanism can achieve the adjustment with a small width variation. The present invention has the function of center-aligned adjustment for flanging, saving time and effort, improving working efficiency, being able to meet the complicated requirements of an edge folding process for a workpiece.

Description

Folding machine plate pressing mold automatic adjusting device

Technical field

The invention relates to an automatic adjusting device for a pressing die of a folding machine plate, belonging to the technical field of a folding machine tool.

Background technique

The folding machine is a mechanical device for processing the edge of the product. The folding machine is a simple bending machine, which can be manual or motorized. When the plate is folded on the folding machine, the plate needs to be pressed to press the pressure. Tightening and folding, at present, the folding machine on the market adopts a simple mold change method of manually changing the mold or only replacing two sets of molds when the sheets are folded differently, and the manual mold change is time consuming and laborious. The work efficiency is low, and the simple mold change is only applicable to the single, regular, and non-inverted workpieces. For workpieces with inner flanges, the complicated folding process is difficult to apply.

Summary of the invention

In view of the above drawbacks, the object of the present invention is to provide a simple structure, convenient operation, automatic width adjustment, and a function of centering to avoid the flanging function, saving time and labor, and improving work efficiency. Device.

To this end, the technical solution adopted by the present invention is:

The mold base includes a avoidance die mechanism at an intermediate portion of the lower end of the mold base, and the insert mold adjustment mechanism mounted on the mold base is respectively disposed on the left and right sides of the avoidance die mechanism, and the left and right ends of the mold base are respectively disposed There is a standard mold adjustment mechanism, and the lower end of the mold base is a trapezoidal guide rail.

As a further improvement of the above technical solution, the avoidance die mechanism comprises a center telescopic mold frame, a left telescopic mold, a right telescopic mold, a center telescopic mold, a center hydraulic cylinder, a left hydraulic cylinder and a right hydraulic cylinder, and the center is disposed The upper end of the telescopic mold frame is fixedly mounted on the lower end of the mold base, the central telescopic mold frame is an inverted U-shaped structure, the central telescopic mold is a convex structure, and the central hydraulic cylinder is fixedly mounted in the middle telescopic mold frame. The piston rod of the central hydraulic cylinder is fixedly connected with the upper end of the center telescopic mold, and the left telescopic mold and the right telescopic mold are respectively connected to the left and right sides of the middle telescopic mold frame through the left hydraulic cylinder and the right hydraulic cylinder, respectively, the left The lower end of the telescopic mold and the right telescopic mold are respectively provided with inwardly folded flanges, and the upper end surface of the left telescopic mold and the right telescopic mold are provided with a dovetail groove I matched with the trapezoidal guide rail, and the central telescopic mold The lower end width is greater than the width of the center telescopic mold frame.

As a further improvement of the above technical solution, the insert mold adjusting mechanism includes a bracket mounted on a front end surface of the mold base, and one end of the bracket is mounted with a motor and a reduction motor I, and the motor is located above the reduction motor I, The output end of the reduction motor I is connected with a rotating shaft, and the output end of the motor is connected with a screw through a coupling, and the screw is sleeved a nut, the nut is connected with a connecting plate I, a middle portion of the connecting plate 1 is fixedly connected with a limiting block, and the rotating shaft is sleeved with a connecting plate II movable left and right along the rotating shaft, and the other end of the connecting plate II is connected a latching shaft, the lower end of the connecting plate I is provided with a slit, and one end of the connecting plate II sleeved on the rotating shaft is located in the opening, and the other end of the bracket is provided with a plurality of inserts on the rotating shaft a die having a socket engaged with the pin shaft, and a connecting block fixed on the rotating shaft between the connecting plate II and the blade die, and the other end sleeve of the connecting block On the bolt shaft, the bracket is provided with a cylinder I, the upper end of the piston rod of the cylinder I is provided with a gusset plate, and the bottom of the insert mold is provided with a buckle groove matched with the gusset plate, and the insert mold The upper end is provided with a limiting slot, and the lower end of the front side of the limiting block is provided with a boss, and the boss cooperates with the limiting slot.

As a further improvement of the above technical solution, the standard mold adjusting mechanism comprises a plurality of standard molds movably mounted on the trapezoidal guide rails at both ends of the mold base, and the upper end surface of the standard mold is provided with a dovetail slot II matched with the trapezoidal guide rail. A hollow cavity is disposed in the dovetail slot II, and a cylinder II is fixedly mounted in the cavity. The lower end surface of the trapezoidal guide rail is provided with a sliding slot, and the sliding slot is provided with a sliding strip, and the two ends of the mold base A geared motor II is fixedly mounted, a gear is mounted on the output end of the geared motor II, a rack corresponding to the gear is mounted on the outer side of the upper end of the sliding bar, and a plurality of cylinders are disposed on the lower end surface of the sliding bar The positioning hole of the piston rod cooperates.

As a further improvement of the above technical solution, a guide shaft is respectively mounted on the upper and lower ends of the two sides of the center telescopic mold frame, and the upper and lower ends of the left telescopic mold and the right telescopic mold are provided with guide holes that cooperate with the guide shaft. .

The advantages of the invention are:

The invention has the advantages of simple structure and convenient operation. When the workpiece is turned over, the avoiding mold can shorten a certain width, and can be restored again when the workpiece is clamped, and the standard mold adjusting mechanism can realize the adjustment of the width variation amount, and the insert mold adjusting mechanism It can realize the adjustment of the small change of the width, has the function of avoiding the flanging in the center, saves the time and labor, improves the work efficiency, and can meet the complex workpiece requirements of the hemming process.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

2 is a schematic structural view of the avoidance mold of FIG. 1.

Figure 3 is a right side view of Figure 2.

4 is a schematic structural view of the insert type mold adjusting mechanism of FIG. 1.

Figure 5 is a cross-sectional view taken along line A-A of Figure 4;

Figure 6 is a cross-sectional view taken along line B-B of Figure 4;

Figure 7 is a schematic view showing the structure of the standard mold adjusting mechanism of Figure 1.

Figure 8 is a right side view of Figure 7.

1 is the mold base, 2 is the avoidance mold mechanism, 3 is the insert mold adjustment mechanism, 4 is the standard mold adjustment mechanism, 5 is the center telescopic mold frame, 6 is the left telescopic mold, 7 is the right telescopic mold, 8 It is a center-mounted telescopic mold, 9 is a center hydraulic cylinder, 10 is a left hydraulic cylinder, 11 is a right hydraulic cylinder, 12 is a flange, 13 is a dovetail groove I, 14 is a bracket, 15 is a motor, 16 is a geared motor I, 17 is a rotating shaft, 18 is a coupling, 19 is a screw, 20 is a nut, 21 is a connecting plate I, 22 is a limiting block, 23 is a connecting plate II, 24 is a pin shaft, 25 is a blade mold, 26 It is a jack, 27 is a connecting block, 28 is a cylinder I, 29 is a gusset, 30 is a buckle groove, 31 is a limit groove, 32 is a boss, 33 is a standard mold, 34 is a cylinder II, 35 is a slide bar, 36 is a geared motor II, 37 is a gear, 38 is a rack, 39 is a positioning hole, and 40 is a guide shaft.

detailed description

The utility model relates to an automatic adjusting device for a pressing machine for a folding machine, comprising a mold base 1, wherein an intermediate part of the lower end of the mold base 1 is mounted with a avoidance mold mechanism 2, and the left and right sides of the avoidance mold mechanism 2 are respectively installed on the mold base 1 In the upper insert mold adjusting mechanism 3, the left and right ends of the mold base 1 are respectively provided with a standard mold adjusting mechanism 4, and the lower end of the mold base 1 is a trapezoidal guide rail.

As a further improvement of the above technical solution, the avoidance die mechanism 2 includes a center telescopic mold frame 5, a left telescopic mold 6, a right telescopic mold 7, a center telescopic mold 8, a center hydraulic cylinder 9, a left hydraulic cylinder 10, and a right a hydraulic cylinder 11, the upper end of the center telescopic mold frame 5 is fixedly mounted on the lower end of the mold base 1, the center telescopic mold frame 5 is an inverted U-shaped structure, and the center telescopic mold 8 is a convex structure, wherein the middle cylinder The hydraulic cylinder 9 is fixedly mounted in the center telescopic mold frame 5, and the piston rod of the center hydraulic cylinder 9 is fixedly connected to the upper end of the center telescopic mold 8, and the left telescopic mold 6 and the right telescopic mold 7 are respectively passed through the left hydraulic cylinder. 10 and the right hydraulic cylinder 11 are connected to the left and right sides of the center telescopic mold frame 5, and the lower ends of the left telescopic mold 6 and the right telescopic mold 7 are respectively provided with inwardly folded flanges 12, the left telescopic mold 6 and The upper end surface of the right telescopic mold 7 is provided with a dovetail groove I13 that cooperates with the trapezoidal guide rail, and the width of the lower end of the center telescopic mold 8 is larger than the width of the center telescopic mold frame 5.

As a further improvement of the above technical solution, the blade type mold adjusting mechanism 3 includes a bracket 14 mounted on a front end surface of the mold base 1, and the bracket 14 is mounted at one end thereof with a motor 15 and a reduction motor I16, and the motor 15 is located at a geared motor Above the I16, the output end of the geared motor I16 is connected with a rotating shaft 17, and the output end of the motor 15 is connected with a screw rod 19 via a coupling 18, and the threaded rod 19 is sleeved with a nut 20, the nut 20 is connected to the connecting plate I21, the middle portion of the connecting plate I21 is fixedly connected to the limiting block 22, and the rotating shaft 17 is covered with a connecting plate II23 which is movable left and right along the rotating shaft 17, and the other end of the connecting plate II23 is connected a latching shaft 24, a lower end of the connecting plate I21 is provided with a slit, and one end of the connecting plate II23 sleeved on the rotating shaft 17 is located in the opening, and the other end of the bracket 14 is provided with a plurality of sleeves on the rotating shaft 17 a blade die 25, the blade die 25 is provided with a socket 26 for cooperating with the pin shaft 24, the connector A connecting block 27 is fixedly disposed on the rotating shaft 17 between the connecting plate II23 and the inserting die 25. The other end of the connecting block 27 is sleeved on the latch shaft 24, and the bracket 14 is provided with a cylinder I28. The upper end of the piston rod of the cylinder I28 is provided with a gusset 29, and the bottom of the inserting mold 25 is provided with a buckle groove 30 matched with the gusset 29, and the upper end of the inserting mold 25 is provided with a limiting slot 31, the limit The lower end of the front side of the block 22 is provided with a boss 32 which cooperates with the limiting groove 31.

As a further improvement of the above technical solution, the standard mold adjusting mechanism 4 includes a plurality of standard molds 33 movably mounted on the trapezoidal guide rails at both ends of the mold base 1, and the upper end surface of the standard mold 33 is provided with a dovetail matched with the trapezoidal guide rail. a slot II is disposed in the dovetail slot II, and a cylinder II34 is fixedly mounted in the recessed cavity. The lower end surface of the trapezoidal guide rail is provided with a sliding slot, and the sliding slot 35 is mounted in the sliding slot. A geared motor II36 is fixedly mounted on both ends of the die holder 1 , and a gear 37 is mounted on the output end of the geared motor II 36 . A rack 38 that cooperates with the gear 37 is mounted on the outer side of the upper end of the sliding bar 35 . The lower end surface is provided with a plurality of positioning holes 39 that cooperate with the piston rods of the cylinders II34.

As a further improvement of the above technical solution, the upper and lower ends of the center telescopic mold frame 5 are respectively respectively mounted with guide shafts 40, and the upper and lower ends of the left telescopic mold 6 and the right telescopic mold 7 are opened and guided with the guide shaft 40 Matching guide holes.

When processing the flanged workpiece, the center hydraulic cylinder 9 of the avoidance mold mechanism 2 drives the center telescopic mold 8 to move upward, and the left telescopic mold 6 and the right telescopic mold 7 are along the mold base 1 under the thrust of the standard molds 33 on both sides. The trapezoidal guide rail at the lower end moves in the middle, and the width of the mold is shortened by a certain distance; when the mold is restored, the left telescopic mold 6 and the right telescopic mold 7 are respectively along the lower end of the mold base 1 under the thrust of the left hydraulic cylinder 10 and the right hydraulic cylinder 11 The trapezoidal guide rail moves to both sides, and the center telescopic mold 8 moves downward under the action of the center hydraulic cylinder 9, and the guide shaft 40 effectively ensures the position of the left telescopic mold 6 and the right telescopic mold 7 during the movement.

When the insert type mold adjusting mechanism 3 is in operation, the gusset 29 at the upper end of the cylinder I28 lowers all the insert dies 25 from above, and the motor 15 drives the lead screw 19 to rotate through the coupling 18, and the nut 20 fitted on the lead rod 19 The limiting block 22 and the latch shaft 24 are moved to the right by the connecting plate I21. The latch shaft 24 is inserted into the insertion hole 26 of the unnecessary insert die 25, and the boss 32 at the lower end of the front end of the limiting block 22 is released. The rotational degree of freedom of the insert die 25 is rotatable about the rotary shaft 17, and the reduction motor I16 drives the rotary shaft 17 to rotate. The rotary shaft 17 rotates the latch shaft 24 about the rotary shaft 17 through the connecting block 27 and drives the unnecessary insert die. 25 is synchronously turned upside down, and the buckle plate 30 is fastened by the gusset plate 29 to the buckle groove 30 on the unnecessary blade die 25.

When the standard mold adjusting mechanism 4 is in operation, the gear motor II36 drives the gear 37 on the output end to rotate, the gear 37 drives the rack 38 to move left and right, and the rack 38 drives the slide bar 35 to move synchronously. When the standard mold 33 needs to move, the standard mold The piston rod of the cylinder II34 in the cavity 33 protrudes into the positioning hole 39 of the lower end surface of the sliding bar 35, so that the standard The mold 33 is fixedly coupled to the slide bar 35 and moves synchronously along the trapezoidal guide rail at the lower end of the die holder 1.

The mold width adjustment range of the invention is wide, the width adjustment variation is small, the adjustment automation degree is high, the centering avoidance flanging function is saved, the time and labor are saved, the work efficiency is improved, and the workpiece requirement of the hemming process is complicated.

Claims

The utility model relates to an automatic adjusting device for a pressering plate of a folding machine, which comprises a mold base, a middle part of the lower end of the mold base is mounted with a avoidance mold mechanism, and the left and right sides of the avoidance mold mechanism are respectively arranged on the mold base The insert type mold adjusting mechanism is provided with a standard mold adjusting mechanism on the left and right ends of the mold base, and the lower end of the mold base is a trapezoidal guide rail.
The automatic adjusting device for the crimping plate pressing mold according to claim 1, wherein the avoiding die mechanism comprises a middle telescopic mold frame, a left telescopic mold, a right telescopic mold, a center telescopic mold, and a middle The hydraulic cylinder, the left hydraulic cylinder and the right hydraulic cylinder are fixedly mounted on the lower end of the mold base, the central telescopic mold frame is an inverted U-shaped structure, and the central telescopic mold is a convex structure. The central hydraulic cylinder is fixedly mounted in the middle telescopic mold frame, and the piston rod of the middle hydraulic cylinder is fixedly connected with the upper end of the center telescopic mold, and the left telescopic mold and the right telescopic mold respectively pass the left hydraulic cylinder and the right The hydraulic cylinder is connected to the left and right sides of the center telescopic mold frame, and the lower ends of the left telescopic mold and the right telescopic mold are respectively provided with inwardly folded flanges, and the upper end surfaces of the left telescopic mold and the right telescopic mold are provided with The dovetail groove I is matched with the trapezoidal guide rail, and the width of the lower end of the center telescopic mold is larger than the width of the center telescopic mold frame.
The automatic adjusting device for a crimping plate pressing mold according to claim 1, wherein the insert mold adjusting mechanism comprises a bracket mounted on a front end surface of the mold base, and the motor is mounted at one end of the bracket. a geared motor I, the motor is located above the geared motor I, the output end of the geared motor I is connected with a rotating shaft, the output end of the motor is connected with a screw through a coupling, and the screw is sleeved with a nut The nut is connected with a connecting plate I. The middle portion of the connecting plate 1 is fixedly connected with a limiting block. The rotating shaft is sleeved with a connecting plate II movable to the left and right along the rotating shaft, and the other end of the connecting plate II is connected with a connecting plate. a latching shaft, the lower end of the connecting plate I is provided with a slit opening, one end of the connecting plate II sleeved on the rotating shaft is located in the opening of the opening, and the other side of the other end of the bracket is provided with a plurality of inserting molds on the rotating shaft The insert mold is provided with a socket corresponding to the bolt shaft, and a connecting block fixed on the rotating shaft is disposed between the connecting plate II and the insert mold, and the other end of the connecting block is sleeved On the pin shaft, the bracket a cylinder I is disposed on the upper end of the piston rod of the cylinder I, and a buckle plate is disposed on the bottom of the piston mold. The bottom end of the insert mold is provided with a limiting slot. The lower end of the front side of the limiting block is provided with a boss, and the boss cooperates with the limiting slot.
The automatic adjusting device for the crimping plate pressing mold according to claim 1, wherein the standard mold adjusting mechanism comprises a plurality of standard molds movably mounted on the trapezoidal guide rails at both ends of the mold base, the standard The upper end surface of the mold is provided with a dovetail slot II matched with the trapezoidal guide rail. The dovetail slot II is provided with a concave cavity. The cavity is fixedly mounted with a cylinder II, and the lower end surface of the trapezoidal guide rail is provided with a sliding slot. A sliding bar is installed in the sliding slot, and a geared motor II is fixedly mounted on both ends of the die holder. The output end of the geared motor II is mounted with a gear, and a rack corresponding to the gear is mounted on the outer side of the upper end of the sliding bar. a plurality of pistons of the cylinder II are disposed on the lower end surface of the sliding strip A matching hole for the rod to match.
The automatic adjusting device for the crimping plate pressing mold of the folding machine according to claim 2, wherein the upper and lower ends of the central telescopic mold frame are respectively mounted with guiding shafts, the left telescopic mold and the right telescopic A guide hole that cooperates with the guide shaft is opened at the upper and lower ends of the inner side of the mold.