CN115846494B

CN115846494B - Aluminum package stretch forming mechanism and multi-station continuous stretch forming device

Info

Publication number: CN115846494B
Application number: CN202211467138.3A
Authority: CN
Inventors: 何思毅; 何思贤
Original assignee: Shaoxing Xinhong Packing Co ltd
Current assignee: Shaoxing Xinhong Packing Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2024-02-23
Anticipated expiration: 2042-11-22
Also published as: CN115846494A

Abstract

The invention discloses an aluminum package stretch forming mechanism and a multi-station continuous stretch forming device, which have the technical scheme that: the device comprises a lower die, an upper die, a first hydraulic rod and a second hydraulic rod, wherein the lower die is arranged on a frame, a bracket is arranged at the upper part of the frame, the upper die is arranged on the bracket through the first hydraulic rod and is right opposite to the position right above the lower die, the upper die and the lower die are mutually matched, and the upper die can be molded by pressing down through the hydraulic rod; the device also comprises a traversing device, a finger cylinder and two clamping pieces, wherein the two clamping pieces are arranged at two output ends of the finger cylinder and can clamp a workpiece; the finger cylinder is arranged on the frame through the transverse moving device and can horizontally move to the upper part of the lower die, the lower die comprises a supporting part and a movable part, the supporting part is fixed on the frame, and the movable part is positioned on the upper part of the supporting part. The invention has good strength conveying stability, keeps smooth conveying of the workpiece, avoids the condition that the workpiece and the lower die are interfered by movement, and has good forming stability.

Description

Aluminum package stretch forming mechanism and multi-station continuous stretch forming device

Technical Field

The invention relates to the technical field of forming equipment, in particular to an aluminum package stretch forming mechanism and a multi-station aluminum package continuous stretch forming device.

Background

Current aluminum packaging products are in the process of being processed. The aluminum sheet is required to be processed by an extrusion molding apparatus, and the sheet is continuously extruded and stretched to form a part in the shape of a lid or the like. However, for an end cap that is elongated and has a large depth, it is often necessary to perform multiple sequential forming processes and gradually stretch the end cap into the desired shape.

The Chinese patent with publication number of CN215826009U discloses a multi-working-procedure continuous forming device for aluminum packaging, which has the technical scheme that: the automatic lifting device comprises a workbench and a supporting table, wherein the workbench is arranged below the workbench, a plurality of machining positions are arranged on the workbench along straight lines at equal intervals, lifting seats are movably connected to the supporting table above each machining position through hydraulic cylinders, lifting rods are arranged below the workbench corresponding to each working position, through grooves for the upper ends of the lifting rods to penetrate through are formed in the workbench, and the upper ends of the lifting rods and the lower sides of the lifting seats are used for installing tools. The scheme adopts a structure with multiple working cooperation processes, and can be suitable for the forming process of complex aluminum packaging products.

In the forming process, the workpiece needs to move between the lower dies of all the processing stations, the workpiece is clamped by the clamping mechanism, and then the workpiece can be driven by the moving mechanism to move to the next lower die. In the moving process of the workpiece, the workpiece on the lower die is clamped by the clamping piece and then translated to the upper end face of the next lower die, and the workpiece possibly interferes with the lower die in the moving process due to the translation action of the workpiece. Moreover, the workpiece is clamped by the clamping piece, so that the lower end face of the clamping piece and the upper end face of the lower die are offset, and collision and interference can be caused.

And part of equipment is in the work piece removal in-process, need carry out the regulation from top to bottom to finger cylinder and work piece, promptly after with the work piece centre gripping, carry the work piece earlier for separate between work piece downside and the lower mould, then on moving to next lower mould, on the lower side upper die up end, and in the work piece carries out the regulation removal in-process from top to bottom to the centre gripping back work piece, will produce the centre gripping skew between holder and the work piece, leads to the work piece to produce on the lower mould and put unstable and the condition of misalignment.

There is therefore a need to propose a new solution to this problem.

Disclosure of Invention

The invention aims to solve the problems and provide an aluminum package stretch forming mechanism which has good strength conveying stability, keeps smooth conveying of workpieces, avoids the condition that the workpieces interfere with the lower die in a moving way, and has good forming stability.

The technical aim of the invention is realized by the following technical scheme:

the aluminum package stretch forming mechanism comprises a lower die, an upper die, a first hydraulic rod and a second hydraulic rod, wherein the lower die is arranged on a frame, a bracket is arranged at the upper part of the frame, the upper die is arranged on the bracket through the first hydraulic rod and is right opposite to the position right above the lower die, the upper die and the lower die are mutually matched, and the upper die can be formed by pressing down the hydraulic rod; the device also comprises a traversing device, a finger cylinder and two clamping pieces, wherein the two clamping pieces are arranged at two output ends of the finger cylinder and can clamp a workpiece; the finger cylinder is arranged on the frame through a transverse moving device and can horizontally move to the position above the lower die;

the lower mould includes supporting part and movable part, the supporting part is fixed in the frame, the movable part is located the upper portion of supporting part, and the upper end of supporting part sets up the arc concave surface, and the lower extreme of movable part sets up the arc convex surface, and arc convex surface and arc concave surface adapt to each other, and movable part can follow arc convex surface and arc concave surface slope swing, and the up end of movable part descends towards the direction slope of finger cylinder, and up end one side of movable part is less than the work piece lower terminal surface of finger cylinder centre gripping.

The invention is further provided that a die channel which is penetrated up and down is arranged in the supporting part, an adaptive supporting column is arranged in the die channel, and the supporting column is adjusted in a lifting way through a second hydraulic rod; an extending channel which penetrates up and down is arranged in the movable part, the extending channel is mutually matched with the die channel, and the supporting column can extend in from the lower end of the extending channel and is used for supporting a workpiece in the extending channel.

The invention is further characterized in that a transition notch is formed in one side of the downward inclined lower end of the extension channel, and the transition notch is in arc transition and is used for guiding the support column mutually when the movable part is inclined.

The invention is further characterized in that a guide wheel is arranged in the transition gap, the guide wheel is rotationally connected in a containing cavity formed at the transition gap, and the surface of the guide wheel protrudes out of the surface of the transition gap and is used for rolling and guiding with the support column.

The invention is further arranged that the lower side surface of the clamping piece is higher than the upper end surface of the movable part, and when the clamping piece moves to the upper end surface of the movable part, the movable part is pushed to swing and return; the bottom of the clamping piece is rotationally connected with a pressing wheel, and the pressing wheel is used for pressing and rolling with the upper end face of the movable part.

The invention is further arranged that the outer side of the movable part is fixedly connected with an arc-shaped rail, an arc-shaped groove is formed in the middle of the arc-shaped rail, and the circle of the arc-shaped groove is consistent with the circle center of the arc-shaped convex surface; a sliding block is connected in the arc-shaped groove in a sliding way, and the sliding block can slide in the arc-shaped groove in an arc-shaped way; the outside fixedly connected with supporting seat of supporting part, the upper portion of supporting seat is connected with the bracing piece, the upper end and the slider fixed connection of bracing piece.

The invention is further arranged that the sliding block is arc-shaped, a plurality of pulleys are rotatably connected on the arc-shaped sliding block, and the sliding block is guided to slide through the rolling of the pulleys and the arc-shaped groove.

The invention is further arranged that one side of the supporting rod is fixedly connected with a first connecting point, the outer side of the movable part is fixedly connected with a second connecting point, an elastic piece is connected between the first connecting point and the second connecting point, and the elastic piece is used for elastically driving the movable part to incline and swing.

The invention is further arranged that the supporting seat is provided with an inner cavity, the inner cavity is connected with the adjusting block in a sliding way, and the up-and-down sliding can be realized through a sliding groove in the inner cavity; the upper end of the adjusting block is fixedly connected with the lower end of the supporting rod, and the supporting rod upwards penetrates through the supporting seat, so that lifting sliding adjustment can be realized; the upper end of the supporting seat is connected with a first bolt in a threaded manner, and the first bolt extends into the supporting seat and is used for propping and limiting the adjusting block; the lower side of the supporting seat is elastically propped against a spring, and the adjusting block is upwards propped against the lower end of the bolt through the spring.

The invention is further arranged that the lower side of the supporting seat is connected with a second bolt in a threaded manner, and the second bolt extends into the inner cavity of the supporting seat and is used for pressing and limiting the pressing block; the outer side wall of the supporting part is provided with a through linkage hole, and the linkage hole correspondingly extends to the inner cavity of the supporting seat; the linkage hole sliding connection has the linkage piece, and the one end of linkage piece stretches into the inner chamber of supporting seat and offsets with the linkage inclined plane of regulating block upside, and the other end stretches into in the mould passageway for with the support column looks adaptation each other, the support column rises the in-process, can support to press the promotion linkage piece, drives the regulating block and moves down.

The invention also provides a multi-station continuous stretch forming device, which comprises a frame and a plurality of groups of stretch forming mechanisms, wherein each stretch forming mechanism is supported by the frame and distributed along a straight line; the rack is provided with a traversing device which can slide back and forth along the directions of the stretching and forming mechanisms and is used for driving the workpiece to move to the next stretching and forming mechanism.

In summary, the invention has the following beneficial effects:

by adopting the movable part capable of movably swinging, the guide tracks of the arc convex surface and the arc concave surface on the movable part and the support part are mutually matched, so that the sliding smoothness of the movable part is kept; in the process of sequentially conveying the workpieces, the movable part in the lower die swings to give way, so that the height of one side of the upper end surface of the lower die is reduced, the workpieces can smoothly move to the upper side of the lower die, and interference collision between the workpieces and the lower die in the process of conveying the workpieces is avoided. The finger cylinder and the clamping piece do not need to generate up-and-down jolt motions, so that the stability of clamping the workpiece can be maintained, and the workpiece can be stably conveyed.

Drawings

FIG. 1 is a schematic structural view of a continuous stretch forming apparatus for multi-station aluminum packaging according to the present invention;

FIG. 2 is a schematic view of a stretch forming mechanism for aluminum packaging according to the present invention;

FIG. 3 is a schematic diagram of the structure of the lower mold, the finger cylinder and the clamping member;

FIG. 4 is a schematic view of the structure of a workpiece and a lower die clamped by a finger cylinder according to the invention;

FIG. 5 is a schematic view of the structure of the guide wheel in the transition gap of the present invention;

FIG. 6 is a schematic diagram II of the structure of the lower die, the finger cylinder and the clamping member;

FIG. 7 is a schematic view of the structure of the support and movable parts of the lower die of the present invention;

FIG. 8 is a schematic view of the structure of the support base, support bar and arc rail of the present invention;

FIG. 9 is a schematic view of the lower mold and the support base of the present invention;

fig. 10 is a schematic view of the internal structure of the support base, the linkage hole and the linkage piece according to the present invention.

Reference numerals: 100. a workpiece; 101. a lower end surface; 1. a frame; 2. a first hydraulic rod; 3. a lower die; 4. a bracket; 5. a second hydraulic rod; 6. an upper die; 7. a traversing device; 8. a finger cylinder; 9. a clamping member; 91. a pressing wheel; 10. a die passage; 11. a support column; 12. a support part; 13. a movable part; 131. an upper end surface; 14. an extension channel; 15. a transition gap; 16. an arcuate convex surface; 17. an arc-shaped concave surface; 18. a guide wheel; 181. a cavity; 19. an arc-shaped rail; 20. an arc-shaped groove; 21. a slide block; 22. a pulley; 23. a support rod; 24. a support base; 25. a first connecting point; 26. a second connecting point; 27. an elastic member; 28. an inner cavity; 29. a chute; 30. an adjusting block; 31. a spring; 32. a first bolt; 33. a second bolt; 34. a linkage hole; 35. a first linkage block; 36. a screw; 37. a second linkage block; 38. and a linkage inclined plane.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment also discloses an aluminum packaging stretch forming mechanism, as shown in fig. 2, comprising a lower die 3, an upper die 6, a first hydraulic rod 2 and a second hydraulic rod 5, wherein the lower die 3 is arranged on the frame 1, the upper part of the frame 1 is provided with a bracket 4, the bracket 4 is provided with the first hydraulic rod 2, the lower end of the first hydraulic rod 2 is provided with the upper die 6, the upper die 6 is right above the lower die 3, and the lifting action of the upper die 6 can be driven and regulated through the first hydraulic rod 2. The upper die 6 and the lower die 3 are mutually matched, the workpiece 100 is placed on the lower die 3, and the workpiece 100 can be extruded and stretched by pressing the upper die 6.

For example, the lower die 3 has a cylindrical structure, and is internally provided with a circular hole penetrating up and down to form a die channel 10; the upper die 6 has a cylindrical shape which is mutually matched with the die channel 10, can be mutually matched with the die channel 10, and can realize the stretch forming of the workpiece 100.

The stretching and forming mechanism further comprises a traversing device 7, a finger cylinder 8 and two clamping pieces 9, wherein the two clamping pieces 9 are arranged at two output ends of the finger cylinder 8, and are driven by the finger cylinder 8 to drive the two clamping pieces 9 to open and close so as to clamp a workpiece 100; the transverse moving device 7 is arranged on the frame 1, the finger cylinder 8 is arranged through the transverse moving device 7, and can drive the finger cylinder 8 to horizontally move to the upper side of the lower die 3, and the workpiece 100 clamped by the finger cylinder 8 can be moved to the upper side of the lower die 3.

As shown in fig. 3, the lower die 3 includes a support portion 12 and a movable portion 13, the support portion 12 and the movable portion 13 each have a substantially cylindrical structure, the lower end of the support portion 12 is fixedly mounted on the frame 1, and the movable portion 13 is mounted on the upper portion of the support portion 12. The upper end of supporting part 12 is arc concave surface 17, and the lower extreme of movable part 13 is arc convex surface 16, and arc convex surface 16 and arc concave surface 17 mutually support, and movable part 13 installs in the upside of supporting part 12 to through the support guiding action of arcwall face, make movable part 13 can follow arc convex surface 16 and arc concave surface 17 tilt swinging.

In the swinging process, the device is provided with two swinging limiting positions, as shown in fig. 3 and 6, and can swing within a certain angle range. As shown in fig. 3, after the upper end surface 131 of the movable portion 13 swings downward and inclined toward the direction of the finger cylinder 8, one side of the upper end surface 131 of the movable portion 13 is lower than the lower end surface 101 of the workpiece 100 clamped by the finger cylinder 8, so that the height of the side is lowered, and further, the clamped workpiece 100 generates interference collision after moving to the upper end surface 131 of the lower die 3. Since the workpiece 100 is located at a position slightly higher than the position of the movable portion 13 when moving to the upper side of the movable portion 13, and then the movable portion 13 is driven to swing under the action of the clamping member 9 and the workpiece 100 as the workpiece 100 moves, the upper end surface 131 of the movable portion 13 swings to a state close to horizontal, as shown in fig. 6.

In order to enable the movable portion 13 to swing stably and smoothly, a guide structure may be installed between the movable portion 13 and the support portion 12. As shown in fig. 7, arc rails 19 are fixedly connected to the peripheries of the front and rear sides of the movable portion 13, an arc groove 20 is formed in the middle of each arc rail 19, and the circle of each arc groove 20 is consistent with the circle center of each arc convex surface 16, so that the guiding track of each arc groove 20 is consistent with the guiding tracks of each arc convex surface 16 and each arc concave surface 17, and the sliding smoothness of the movable portion 13 is maintained.

A sliding block 21 is slidably connected in the arc-shaped groove 20, the sliding block 21 has an arc-shaped structure with a certain length, can slide in an arc shape in the arc-shaped groove 20, is limited by the sliding of the sliding block 21 to control the swing angle of the movable part 13, and is generally adjusted in the range of the horizontal and 5-degree inclination of the inclination angle of the movable part 13.

The outside fixedly connected with supporting seat 24 at supporting part 12, the upper portion of supporting seat 24 is connected with bracing piece 23, and the upper end and the slider 21 fixed connection of bracing piece 23 realize being connected between supporting part 12 and the slider 21, and then make movable part 13 can produce the ascending slip regulation of arc direction under the spacing effect of arc rail 19 and slider 21 to maintain the stability of movable part 13.

In order to improve the smooth guiding between the sliding block 21 and the arc-shaped groove 20, three pulleys 22 may be installed on the arc-shaped sliding block 21, and the sliding stability of the movable portion 13 may be improved by rolling the rotatable pulleys 22 and the arc-shaped groove 20.

The lower side surface of the clamping piece 9 on the finger cylinder 8 is higher than the upper end surface 131 of the movable part 13, and when the clamping piece 9 moves to the upper end surface 131 of the movable part 13, the movable part 13 is pushed to swing and return.

As shown in fig. 4, in order to drive the movable portion 13, a pressing roller 91 may be rotatably connected to the bottom of the clamping member 9 to keep the smoothness of pressing between the clamping member 9 and the movable portion 13, the pressing roller 91 may press and roll against the upper end surface 131 of the movable portion 13, the pressing roller 91 may realize the pressing limit on the upper end surface 131 of the movable portion 13, and the upper end surface 131 of the movable portion 13 may be gradually pressed down until the movable portion is in a horizontal state along with the movement of the clamping member 9. Because the two clamping pieces 9 are provided, and the pressing wheels 91 are installed at the lower sides of the two clamping pieces 9, the upper end face of the movable portion 13 can be pressed and limited through the pressing wheels 91 at the two sides, so that when the workpiece 100 moves to the position right above the movable portion 13, the pressing wheels 91 at the two sides can press and limit the movable portion 13 at the two sides, and the stable state of the movable portion 13 can be maintained.

In order to drive the swing motion of the movable portion 13, an elastic member is installed between the support rod 23 and the movable portion 13, and the movable portion 13 swings automatically by the elastic action of the elastic member. As shown in fig. 7, a first connection point 25 is fixedly connected to one side of the support rod 23, a second connection point 26 is fixedly connected to the outer side of the movable portion 13, the first connection point 25 and the second connection point 26 form a support, the elastic member can adopt a spring 31, and two ends of the spring 31 are respectively connected between the first connection point 25 and the second connection point 26 to form elastic stretching effect, so that the movable portion 13 can be driven to tilt and swing. Under the action of the spring 31, the movable portion 13 can automatically and elastically swing to an inclined state as shown in fig. 3, and after each machining, the movable portion 13 will automatically swing to an inclined state, so that the workpiece 100 can be conveniently moved to the upper side of the movable portion 13.

As shown in fig. 3 and 6, a vertically penetrating mold channel 10 is provided in the support portion 12, a support column 11 with a size adapted is mounted in the mold channel 10, the support column 11 can be adjusted to be lifted up and down in the mold channel 10, a second hydraulic rod 5 is mounted at the lower end of the support portion 12, and lifting driving of the support column 11 can be achieved through the second hydraulic rod 5.

An extending channel 14 penetrating up and down is arranged in the movable part 13, and the extending channel 14 is mutually matched with the die channel 10 to form upward extension of the die channel 10, and the die channel 10 and the extending channel 14 are connected to form a formed hole channel together. The support column 11 can stretch into from the lower end of the extension channel 14 in the upward movement process, and in the forming process, the upper end of the support column 11 is positioned in the extension channel 14, so that the support column can play a supporting role on the workpiece 100 in the forming process, and further cooperate with the upper die 6 stretching into the extension channel 14 to perform extrusion stretch forming processing on the workpiece 100. Moreover, since the dimensions of the support column 11 and the dimensions of the extension channel 14 in the movable portion 13 are mutually adapted, when the support column 11 extends into the extension channel 14, the extension channel 14 of the movable portion 13 and the support column 11 will maintain a coaxial state, i.e. the upper end face 131 of the movable portion 13 can be controlled to be in a horizontal state.

Since the movable portion 13 is in an inclined state in a relaxed state, the extending channel 14 and the supporting column 11 are inclined and offset before each other, in order to enable the supporting column 11 to smoothly enter the extending channel 14, an arc-shaped chamfer can be formed at the upper end edge of the supporting column 11, and then a certain floating adjusting and guiding effect can be achieved in the inserting process of the supporting column 11.

A transition gap 15 is formed at the lower end of the extension channel 14, the transition gap 15 is positioned at one side inclined downwards, and the transition gap 15 is in arc transition, so that a larger hole can be formed at the lower end of the extension channel 14, and a mutual guide can be formed between the support column 11, so that the support column 11 can be smoothly led into the channel of the movable part 13. Under the action of the supporting column 11, the movable part 13 can be driven to swing, so that the movable part 13 can realize automatic swing adjustment, and swing to the upper end face 131 to be in a horizontal state.

Further, as shown in fig. 5, a guiding wheel 18 is provided in the transition gap 15, a cavity 181 is provided at the transition gap 15, the guiding wheel 18 is rotatably installed in the cavity 181, the surface of the guiding wheel 18 protrudes out of the surface of the transition gap 15, and the guiding wheel 18 can roll and guide with the upper end of the supporting column 11, so that smooth guiding and linkage actions of the supporting column 11 and the movable portion 13 can be maintained.

The embodiment also discloses a multi-station continuous stretch forming device, as shown in fig. 1, which comprises a frame 1 and a plurality of groups of stretch forming mechanisms in the embodiment, wherein each stretch forming mechanism is supported by the frame 1 and distributed along a straight line. The frame 1 is provided with a traversing device 7, and the traversing device 7 is a traversing frame capable of reciprocally sliding along the direction of each stretching and forming mechanism and is reciprocally driven by a screw rod device of a servo motor. The finger cylinder 8 in the stretch forming mechanism is arranged on the transverse moving frame, and the finger cylinder 8 and the clamping piece 9 can reciprocate between the two groups of stretch forming mechanisms through reciprocating movement.

During operation, the metal sheet to be processed is input into each first stretch forming mechanism and is extruded and formed under the pressing action of the upper die 6 and the lower die 3; then, the gripping member 9 at the corresponding position moves the gripping workpiece 100 to the next stretch forming mechanism, the movable portion 13 of the lower die 3 in the next stretch forming mechanism swings to the inclined state as shown in fig. 4, and one side of the upper end surface 131 of the movable portion 13 is lower than the height of the lower end surface 101 of the gripped workpiece 100, so that the workpiece 100 can be smoothly moved to the upper end surface 131 of the next stretch forming mechanism. And then the movable part 13 adjusts the swing to be in a horizontal state, and is matched with the supporting part 12 to form a complete lower die 3, and further extrusion and stretching forming of the workpiece 100 are realized through the matching of the upper die 6 and the lower die 3.

In the process of sequentially conveying the workpieces 100, the movable part 13 in the lower die 3 generates swing abdication, and the finger cylinder 8 and the clamping piece 9 do not need to generate up-down jolting action, so that the stability of clamping the workpieces 100 can be maintained, and the workpieces 100 can be stably conveyed.

Moreover, since the support column 11 is always positioned in the extension channel 14 of the movable seat during the process of stripping the workpiece 100 from the lower die 3 and clamping by the clamping piece 9, the horizontal state of the movable seat is limited, and the workpiece 100 can be ensured to be normally clamped and output.

By sequentially forming by each group of stretch forming mechanisms in the forming device, the workpiece 100 can be gradually subjected to gradual stretch forming, the metal sheet can be stretched and formed into an elongated end cover-like structure, and continuous forming processing of the workpiece 100 can be realized.

Further, the design can be further optimized on the basis of the above embodiment, the movable portion 13 is formed in a state that the movable portion can slightly float up and down, in the swinging process, the movable portion 13 slightly rises upwards, a gap is formed between the arc-shaped convex surface 16 and the arc-shaped concave surface 17, the distance of the gap is between 0.5mm and 1.5mm, and further, in the swinging process, the arc-shaped convex surface 16 and the arc-shaped concave surface 17 can be mutually separated, the situation of excessive abrasion in the swinging process is avoided, and the maintenance time can be prolonged.

As shown in fig. 8, an inner cavity 28 is formed in the support seat 24, an adjusting block 30 is slidably connected in the inner cavity 28, sliding grooves 29 are formed in two side walls of the inner cavity 28, and two side positions of the adjusting block 30 are embedded in the sliding grooves 29, so that vertical sliding guiding can be realized.

The upper end of the adjusting block 30 is fixedly connected with the lower end of the supporting rod 23, the supporting rod 23 upwards penetrates through the supporting seat 24, the supporting rod 23 is in sliding connection with a hole on the adjusting seat, sliding guiding of the supporting rod 23 can be achieved, and lifting sliding adjustment can be achieved.

The first bolt 32 is connected to the upper end of the supporting seat 24 in a threaded manner, and the first bolt 32 extends into the supporting seat 24 and is used for pressing and limiting the adjusting block 30; the spring 31 is elastically pressed against the lower side of the supporting seat 24, the adjusting block 30 is pressed against the lower end of the first bolt 32 upwards through the spring 31, and the limit of the adjusting block 30 can be kept under the action of the spring 31 and the first bolt 32. The first threaded adjusting bolt 32 can adjust the supporting seat 24, the supporting rod 23 and the movable part 13 at the upper end of the supporting rod 23 to a proper height position, so that a proper gap height is formed between the movable part 13 and the supporting part 12, the movable part 13 can be kept to rotate and swing smoothly, and the situation of excessive deviation caused by overlarge gap can be avoided.

A certain gap is formed between the arc-shaped convex surface 16 and the arc-shaped concave surface 17, the lower part of the adjusting block 30 is supported by a spring 31, and the adjusting block 30 can elastically float downwards. In the molding extrusion process, the upper die 6 moves downwards to press the workpiece 100, after the workpiece 100 is pressed, a certain downward pressure is generated on the movable portion 13, so that the elastic support of the spring 31 can be overcome, the movable portion 13 is pressed downwards, a gap between the movable portion 13 and the supporting portion 12 is eliminated, the arc-shaped convex surface 16 and the arc-shaped concave surface 17 are mutually attached, the structural stability of the movable portion 13 and the whole lower die 3 can be further maintained, and the stability of the molding process is maintained.

The second bolt 33 is connected to the lower side of the supporting seat 24 in a threaded manner, and the second bolt 33 extends into the inner cavity 28 of the supporting seat 24 and is used for pressing and limiting the pressing block; the downward formation of the adjusting block 30 can be limited by the second bolt 33, so that the adjustment formation of the adjusting seat can be further limited by the second bolt 33.

Further, a through-link hole 34 is formed in the outer wall of the support portion 12, and the link hole 34 corresponds to the support seat 24 and extends through the inner cavity 28 of the support seat 24. The linkage hole 34 is slidably connected with a linkage piece, one end of the linkage piece extends into the inner cavity 28 of the supporting seat 24, the upper side of the regulating block 30 in the inner cavity 28 faces the upper angular position of the linkage piece to form a linkage inclined surface 38, the linkage inclined surface 38 is mutually propped and matched with the linkage piece, and when the linkage piece moves towards the inner cavity 28, the propping and pressing of the regulating block 30 can be realized, so that the regulating block 30 descends; the other end of the linkage piece stretches into the die channel 10 and is used for being mutually matched with the support column 11, and the support column 11 can be propped and pushed to move the linkage piece in the direction of the support seat 24 in the ascending process of the support column 11.

In the upward movement process of the support column 11, when the upper end surface 131 of the support column 11 moves to the position of the linkage member, the linkage member is pushed to move towards the support seat 24, and the support column 11 is pushed inwards; the linkage piece is linked with the linkage inclined plane 38 of the regulating block 30 to drive the regulating block 30 to descend, and meanwhile, the supporting rod 23 drives the sliding block 21 and the movable part 13 on the upper part to move downwards, so that the movable part 13 is stably limited on the upper part of the supporting part 12, the relative positioning and stability of the positions between the movable part 13 and the supporting part 12 are realized, and the overall stability of the lower die 3 in the forming process can be further maintained.

In order to improve the transmission smoothness between the linkage piece and the upper ends of the linkage inclined surface 38 and the support column 11, the two ends of the linkage piece can be processed into a ball-head-shaped structure, and a smooth transmission pushing effect can be achieved through a spherical surface.

The linkage piece can also adopt the structure of adjustable length, as shown in fig. 10, the linkage piece includes linkage piece one 35, linkage piece two 37 and screw rod 36, screw rod 36 fixed connection is on linkage piece one 35, and extend to the direction of linkage piece two 37, linkage piece two 37 threaded connection is on screw rod 36, realize being connected between linkage piece one 35, screw rod 36 and the linkage piece two 37, and through screw thread adjustment linkage piece two 37, can adjust the overall length of linkage piece, and then realize forming the regulation to the lift of regulating block 30 in the linkage process, and then can adapt to fashioned action.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. The utility model provides an aluminium package stretch forming mechanism, includes lower mould (3), goes up mould (6), hydraulic rod one (2) and hydraulic rod two (5), lower mould (3) are installed in frame (1), and the upper portion of frame (1) sets up support (4), goes up mould (6) and is installed in support (4) through hydraulic rod one (2) to just above lower mould (3), go up mould (6), lower mould (3) mutually support, go up mould (6) and push down through hydraulic rod one (2) and can realize the shaping; the device also comprises a traversing device (7), a finger cylinder (8) and two clamping pieces (9), wherein the two clamping pieces (9) are arranged at two output ends of the finger cylinder (8) and can clamp a workpiece (100); the finger cylinder (8) is arranged on the frame (1) through the transverse moving device (7) and can horizontally move to the position above the lower die (3), and is characterized in that the lower die (3) comprises a supporting part (12) and a movable part (13), the supporting part (12) is fixed on the frame (1), the movable part (13) is positioned at the upper part of the supporting part (12), an arc concave surface (17) is arranged at the upper end of the supporting part (12), an arc convex surface (16) is arranged at the lower end of the movable part (13), the arc convex surface (16) and the arc concave surface (17) are mutually matched, the movable part (13) can obliquely swing along the arc convex surface (16) and the arc concave surface (17), the upper end surface (131) of the movable part (13) obliquely descends towards the direction of the finger cylinder (8), and one side of the upper end surface (131) of the movable part (13) is lower than the lower end surface (101) of a workpiece (100) clamped by the finger cylinder (8);

an arc-shaped rail (19) is fixedly connected to the outer side of the movable part (13), an arc-shaped groove (20) is formed in the middle of the arc-shaped rail (19), and the circle of the arc-shaped groove (20) is consistent with the circle center of the arc-shaped convex surface (16); a sliding block (21) is connected in the arc-shaped groove (20) in a sliding way, and the sliding block (21) can slide in an arc shape in the arc-shaped groove (20); the outer side of the supporting part (12) is fixedly connected with a supporting seat (24), the upper part of the supporting seat (24) is connected with a supporting rod (23), and the upper end of the supporting rod (23) is fixedly connected with a sliding block (21);

one side of the supporting rod (23) is fixedly connected with a first connecting point (25), the outer side of the movable part (13) is fixedly connected with a second connecting point (26), an elastic piece (27) is connected between the first connecting point (25) and the second connecting point (26), and the elastic piece (27) is used for elastically driving the movable part (13) to incline and swing.

2. The aluminum package stretch-forming mechanism according to claim 1, wherein a die channel (10) penetrating up and down is arranged in the supporting part (12), an adaptive supporting column (11) is arranged in the die channel (10), and the supporting column (11) is adjusted in a lifting manner through a hydraulic rod II (5); an extending channel (14) which is vertically penetrated is arranged in the movable part (13), the extending channel (14) is mutually matched with the die channel (10), and the supporting column (11) can extend in from the lower end of the extending channel (14) and is used for supporting a workpiece (100) in the extending channel (14).

3. The aluminum package stretch-forming mechanism according to claim 2, wherein a transition notch (15) is formed in one side of the lower end of the extension channel (14) inclined downwards, and the transition notch (15) is in arc transition and is used for guiding with the support column (11) when the movable part (13) is inclined.

4. An aluminum packaging stretch-forming mechanism according to claim 3, wherein a guide wheel (18) is arranged in the transition gap (15), the guide wheel (18) is rotatably connected in a cavity (181) formed at the transition gap (15), and the surface of the guide wheel (18) protrudes out of the surface of the transition gap (15) and is used for rolling guide with the support column (11).

5. The aluminum package stretch-forming mechanism according to claim 1, wherein the lower side surface of the clamping piece (9) is higher than the upper end surface (131) of the movable portion (13), and when the clamping piece (9) moves to the upper end surface (131) of the movable portion (13), the movable portion (13) is pushed to swing back; the bottom of the clamping piece (9) is rotationally connected with a pressing wheel (91), and the pressing wheel (91) is used for pressing and rolling with the upper end face (131) of the movable part (13).

6. The aluminum package stretch-forming mechanism according to claim 1, wherein the supporting seat (24) is provided with an inner cavity (28), an adjusting block (30) is connected in a sliding manner in the inner cavity (28), and the upward and downward sliding can be realized through a sliding groove (29) in the inner cavity (28); the upper end of the adjusting block (30) is fixedly connected with the lower end of the supporting rod (23), and the supporting rod (23) upwards penetrates through the supporting seat (24) to realize lifting sliding adjustment; the upper end of the supporting seat (24) is connected with a first bolt (32) in a threaded manner, and the first bolt (32) stretches into the supporting seat (24) and is used for propping and limiting the adjusting block (30); the lower side of the supporting seat (24) is elastically pressed with a spring (31), and the adjusting block (30) is pressed against the lower end of the first bolt (32) upwards through the spring (31).

7. The aluminum package stretch-forming mechanism according to claim 6, wherein the lower side of the supporting seat (24) is connected with a second bolt (33) in a threaded manner, and the second bolt (33) extends into the inner cavity (28) of the supporting seat (24) and is used for pressing and limiting a pressing block; the outer side wall of the supporting part (12) is provided with a through linkage hole (34), and the linkage hole (34) correspondingly extends to the inner cavity (28) of the supporting seat (24); the linkage hole (34) is internally connected with a linkage piece in a sliding manner, one end of the linkage piece extends into the inner cavity (28) of the supporting seat (24) and is propped against the linkage inclined surface (38) at the upper side of the adjusting block (30), and the other end of the linkage piece extends into the die passage (10) and is used for being mutually matched with the supporting column (11), and the supporting column (11) can prop and push the linkage piece in the rising process to drive the adjusting block (30) to move downwards.

8. A multi-station continuous stretch forming device, which is characterized by comprising a frame (1) and a plurality of groups of stretch forming mechanisms according to any one of claims 1-7, wherein each stretch forming mechanism is supported by the frame (1) and distributed along a straight line; the machine frame (1) is provided with a traversing device (7), and the traversing device (7) can slide back and forth along the directions of the stretching and forming mechanisms and is used for driving the workpiece (100) to move to the next stretching and forming mechanism.