CN115475883A

CN115475883A - Take plastic die carrier and trimmer of automatic demoulding mechanism

Info

Publication number: CN115475883A
Application number: CN202211175006.3A
Authority: CN
Inventors: 汤世伟
Original assignee: Shanxi Xinhuan Powder Metallurgy Co ltd
Current assignee: Shanxi Xinhuan Powder Metallurgy Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-12-16

Abstract

The invention belongs to the technical field of shaping devices, and particularly relates to a shaping die carrier with an automatic demolding mechanism and a shaping machine, which comprise a base, an upper plate, a lower plate, a female die mounting plate and a demolding rod, wherein the upper plate and the lower plate are both connected with the base in a sliding manner, and the upper plate is positioned above the lower plate; the demoulding rod is connected with the upper plate and the lower plate in a sliding manner, a spring is sleeved on the demoulding rod, two ends of the spring are respectively abutted against the upper plate and the lower plate, limiting parts are fixed at two ends of the demoulding rod, and the upper plate and the lower plate are limited by the limiting parts to move so as to prevent the upper plate and the lower plate from falling off from the demoulding rod; the female die mounting plate is positioned between the upper plate and the lower plate and is fixedly connected with the base, and a female die is fixed on the female die mounting plate; an upper punch is fixed on the upper plate, a lower punch is fixed on the lower plate, the upper punch and the lower punch are arranged oppositely, and both the upper punch and the lower punch can extend into the female die. The shaping die carrier is compact and exquisite in structure, and the rigidity of the die carrier is higher than that of a common shaping tool.

Description

Take plastic die carrier and trimmer of automatic demoulding mechanism

Technical Field

The invention belongs to the technical field of shaping devices, and particularly relates to a shaping die frame with an automatic demolding mechanism and a shaping machine.

Background

Compared with the traditional mechanical shaping machine, the hydraulic shaping machine has the advantages of stable shaping size and small product deformation; but the production efficiency is low, the equipment is heavy, and the debugging is difficult.

A shaping die carrier and a finishing machine thereof previously reported by the applicant (the patent application number is 202120123121.0); the shaping precision is improved and the automation of feeding and discharging is completed through the structure of the push boat type feeding mechanism and the shaping guide sleeve; the shaping die frame adopted by the method is not provided with a demoulding mechanism, and an additional demoulding device is required to be arranged; therefore, it is necessary to improve the mold frame and the shaping machine, and provide another shaping mold frame with a demolding mechanism.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide a shaping mold frame with an automatic demolding mechanism, which is provided with a demolding mechanism; the invention also aims to provide a shaping machine containing the shaping die carrier.

In order to solve the technical problems, the invention adopts the technical scheme that:

a shaping die carrier with an automatic demoulding mechanism comprises a base, an upper plate, a lower plate, a female die mounting plate and a demoulding rod, wherein the upper plate and the lower plate are both connected with the base in a sliding manner, and the upper plate is positioned above the lower plate; the demoulding rod is connected with the upper plate and the lower plate in a sliding manner, a spring is sleeved on the demoulding rod, two ends of the spring are respectively abutted against the upper plate and the lower plate, limiting parts are fixed at two ends of the demoulding rod, and the upper plate and the lower plate are limited by the limiting parts to move so as to prevent the upper plate and the lower plate from falling off from the demoulding rod;

the female die mounting plate is positioned between the upper plate and the lower plate and is fixedly connected with the base, and a female die is fixed on the female die mounting plate; the upper punch is fixed on the upper plate, the lower punch is fixed on the lower plate, the upper punch and the lower punch are arranged oppositely, and both the upper punch and the lower punch can extend into the female die.

The connecting cylinder is provided with openings at the upper end and the lower end, a blind rivet is arranged in the connecting cylinder and can penetrate through the opening at the lower end of the connecting cylinder to be fixedly connected with the upper plate, and the upper end of the connecting cylinder is fixedly connected with the pressing block flange; the blind rivet is characterized in that a buffer block is sleeved outside the blind rivet, and two ends of the buffer block are abutted against the blind rivet and the connecting cylinder.

And a safety groove is arranged on the blind rivet.

The base is fixed with a guide post, and the upper plate and the lower plate are connected with the base in a sliding manner through the guide post; the guide post fixing plate is arranged on the upper end of the guide post, and the upper end of each guide post is fixedly connected with the guide post fixing plate; and a lower punching height adjusting block is fixed on the lower plate and can be abutted against the base.

The limiting piece is a locking nut, and two ends of the demoulding rod are in threaded connection with the locking nut; still include the dabber, the lower extreme and the base fixed connection of dabber, the dabber can stretch into down in the punching.

A shaping machine comprises a hydraulic machine and a shaping mould frame, wherein a base of the shaping mould frame is fixed on a workbench of the hydraulic machine, and a movable beam of the hydraulic machine is fixedly connected with an upper plate of the shaping mould frame and drives the upper plate to move up and down;

the hydraulic press is provided with a conveying mechanism, the conveying mechanism comprises a feeding and discharging mechanism and a movable material picking paw, and the workpiece is transferred through the feeding and discharging mechanism and the material picking paw.

The feeding and discharging mechanism comprises a support frame, a first telescopic cylinder and a second telescopic cylinder, and the support frame is fixedly connected with a workbench of the hydraulic machine; the first telescopic cylinder and the second telescopic cylinder are any one of an electric cylinder, an air cylinder or an oil cylinder; the first conveyor and the second conveyor both adopt conveying belts;

a feeding groove is fixed on the supporting frame, the first telescopic cylinder is fixedly connected with the supporting frame or the feeding groove, a feeding port and a discharging port are arranged on the feeding groove, a first conveyor and a second conveyor are respectively arranged at the feeding port and the discharging port, and the second telescopic cylinder is positioned above the discharging port and is fixedly connected with the supporting frame or the feeding groove; the feeding trough is hinged with a turning plate, a torsion spring is arranged at the hinged position, and the turning plate is used for shielding the discharging opening; the material picking paw can move to the lower part of the feed opening and the upper part with the female die;

a workpiece to be shaped on the first conveyor enters the feeding groove through the feeding port, and the workpiece in the feeding groove is pushed to the discharging port through the first telescopic cylinder; and pushing the workpiece at the feed opening onto the material picking paw through the second telescopic cylinder, and ejecting the shaped workpiece clamped on the material picking paw onto a second conveyor.

The material picking paw adopts a spring paw; the material picking paw is connected with a driving mechanism, and the driving mechanism drives the material picking paw to move; the driving mechanism adopts any one of a linear moving mechanism, a linear motor or a servo linear module;

the two conveying mechanisms are respectively positioned at the left side and the right side of the hydraulic press; the material picking paws in the two conveying mechanisms are respectively connected with a driving mechanism or are connected with the same driving mechanism.

The material picking paw comprises a paw mounting plate and two paw jaws, wherein the two paw jaws are connected with the paw mounting plate through a link mechanism respectively; the locking mechanism comprises a claw mounting plate, a locking pull rod, a connecting rod, a locking mechanism and a locking mechanism, wherein the claw mounting plate is arranged on the upper portion of the claw mounting plate; and a clamping spring is sleeved on the locking pull rod, and two ends of the clamping spring are respectively abutted against the paw mounting plate and the adjusting nut.

The connecting rod mechanism comprises a swing rod and a driving swing rod, two ends of the swing rod are hinged with the gripper jaw and the gripper mounting plate respectively, one end of the driving swing rod is hinged with the gripper jaw, the other end of the driving swing rod is hinged with the connecting rod through a hinged plate, and two ends of the hinged plate are hinged with the other end of the driving swing rod and the connecting rod respectively; the middle part of the driving swing rod is hinged with the paw mounting plate.

Compared with the prior art, the invention has the following beneficial effects:

the shaping die carrier is compact and small in structure, the rigidity of the die carrier is higher than that of a common shaping tool, products are convenient to replace, only the whole die carrier needs to be replaced, a die does not need to be adjusted, one product corresponds to one die carrier (containing the die), and the shaping die carrier is suitable for being used for large-batch products. And a demoulding oil cylinder is not required to be installed, and demoulding is driven by a demoulding rod, so that the adjusting procedures and equipment faults are reduced.

The blind rivet structure with the polyurethane buffer block can reduce the damage to a mold caused by inaccurate positioning of a conventional hydraulic machine, a safety groove is formed in the blind rivet, and once a positioning sensor of the hydraulic machine breaks down, the blind rivet breaks, so that the shaping mold frame is prevented from being damaged.

The material picking paw uses a spring with a small force value through a pull rod; a swing rod; the linkage of mechanisms such as connecting rod ensures that opening and closing of the jaw can have a coaxial precision, the adjusting nut is used for adjusting the locking force value of the jaw, and the length of the locking pull rod can determine whether self-locking exists after locking.

The small electric cylinder is used for replacing the air cylinder, one-time investment is high, but energy consumption is greatly reduced, the action is stable and reliable, and the use cost is low in the long run. The spring plate turnover mechanism is matched with the unpowered paw, and the feeding and discharging actions can be completed simultaneously in one action period of the second telescopic cylinder, so that the action beat of the equipment is improved.

The shaping machine adopts double material picking claws, double feeding mechanisms and double feeding and discharging mechanisms 201 to sequentially move left and right so as to improve shaping efficiency to the maximum extent. The efficiency of the hydraulic die carrier shaping machine is improved by 40 percent compared with the original hydraulic die carrier shaping machine. The shaping precision meets the requirements of drawings, and the equipment acceptance is already finished. The loading and unloading actions are stable, and mechanical faults are few.

Drawings

FIG. 1 is a schematic structural view of the sizing die carrier of the present invention;

FIG. 2 is a schematic view of a three-dimensional half-section structure of the plastic mold frame of the invention;

FIG. 3 is a schematic view of a planar half-section structure of the plastic scaffold of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic diagram of the structure of the undershoot height adjustment block of the present invention;

FIG. 6 is a structural schematic view of one direction of the trimmer of the present invention;

FIG. 7 is a schematic view of the trimmer of the present invention in another orientation;

FIG. 8 is a schematic view of the trimmer of the present invention in yet another orientation;

fig. 9 is a partial enlarged view at B in fig. 6;

FIG. 10 is an enlarged view of a portion of FIG. 7 at C;

FIG. 11 is an enlarged view of a portion of FIG. 8 at D;

FIG. 12 is a schematic view of one directional structure of the conveying mechanism of the present invention;

FIG. 13 is a schematic view of one orientation of the delivery mechanism of the present invention;

FIG. 14 is a schematic structural view of a loading and unloading mechanism according to the present invention;

FIG. 15 is a schematic structural view of the flap of the present invention;

figure 16 is a schematic view of the pick-up gripper of the present invention;

figure 17 is a schematic view of the connection of the pick-up gripper and the drive mechanism of the present invention;

wherein: 1, a shaping die frame, 100, 101, 102, 103, a female die mounting plate, 104, a stripper rod, 105, a spring, 106, a limiting piece, 107, a female die, 108, an upper punch, 109, a lower punch, 110, a connecting cylinder, 111, a pressing block flange, 112, a rivet, 113, a buffer block, 114, a safety groove, 115, a guide post, 116, a guide post fixing plate, 117, a female die heightening block, 118, a lower punch height adjusting block, 119, an upper pressing block, 120, a lower pressing block, 121, a female die pressing plate and 122, a mandrel;

2, a shaping machine, 200, a hydraulic machine, 201, a feeding and discharging mechanism, 202, a material picking paw, 203, a support frame, 204, a first telescopic cylinder, 2040, a push plate, 205, a second telescopic cylinder, 206, a feeding groove, 2060, a feeding port, 2061, a discharging port, 207, a turning plate, 208, a torsion spring, 209, a first conveyor, 210, a second conveyor, 211, a driving mechanism, 212, a paw mounting plate, 213, a paw jaw, 214, a connecting rod mechanism, 215, 216, a locking pull rod, 217, an adjusting nut, 218, a clamping spring, 219, a swing rod, 220, a driving swing rod, 221, a flat plate feeding machine, 222, a disc blanking machine, 223, a hinged plate and 224, wherein the feeding plate is a driving mechanism, the feeding mechanism is a driving mechanism, the feeding mechanism is a disc blanking mechanism, the feeding mechanism is a hinged plate, and the mounting plate is 224; and 3, a workpiece.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 5, a form setting frame with an automatic demolding mechanism comprises a base 100, an upper plate 101, a lower plate 102, a female mold mounting plate 103 and a demolding rod 104, wherein the upper plate 101 and the lower plate 102 are slidably connected with the base 100, and the upper plate 101 is positioned above the lower plate 102. A female die mounting plate 103 is positioned between the upper plate 101 and the lower plate 102 and is fixedly connected with the base 100, and a female die 107 is fixed on the female die mounting plate 103; an upper punch 108 is fixed on the upper plate 101, a lower punch 109 is fixed on the lower plate 102, the upper punch 108 and the lower punch 109 are oppositely arranged, and both the upper punch 108 and the lower punch 109 can extend into the female die 107.

The demolding rod 104 is connected with the upper plate 101 and the lower plate 102 in a sliding mode, a spring 105 is sleeved on the demolding rod 104, two ends of the spring 105 are respectively abutted against the upper plate 101 and the lower plate 102, limiting parts 106 are fixed to two ends of the demolding rod 104, and the limiting parts 106 limit the movement of the upper plate 101 and the lower plate 102 to prevent the upper plate 101 and the lower plate 102 from being separated from the demolding rod 104; through the structural arrangement of the demoulding rod 104 and the spring 105, the upper plate 101 can be moved without influence, and meanwhile, the lower plate 102 and the lower punch 109 on the lower plate can be driven to move upwards to eject the workpiece in the process of moving upwards the upper plate 101.

The number of the above-mentioned ejector pins 104 is set according to the actual application, and may be one or more, preferably two.

When the shaping die set is used, the shaping die set is placed at the position of a hydraulic press 200, a workpiece to be shaped is placed in a female die 107, the workpiece to be shaped is pressed downwards through the four-column hydraulic press 200, an upper punch 108 drives a product to enter the female die 107, the product props against a lower punch 109, the lower punch 109 drives a lower plate 102 of the shaping die set to descend, the lower plate 102 stops descending after contacting a base 100, at the moment, the upper plate 101 continues to move downwards and compresses a spring 105, the upper punch 108 and the lower punch 109 fully extrude the workpiece to be shaped, and the shaping process is finished after the pressing delay.

The spring 105 has two functions: firstly, the impact vibration of the lower punch assembly is reduced when the upper plate 101 of the die frame moves upwards quickly; secondly, when the lower plate 102 moves down to the right position, the lower punch 109 is advanced to be in position by the spring force, and the risk of position deviation when a product enters the female die is reduced.

After shaping is finished, the oil cylinder of the hydraulic press 200 moves upwards, the upper plate 101 also moves upwards, and the lower plate 102 is driven to move upwards through the limiting piece 106 at the lower end of the demoulding rod 104, so that the shaped workpiece is taken out by the lower punch 109 on the lower plate 102; taking out the workpiece and then putting a new workpiece for further shaping.

Further, the upper plate 101 may be directly connected to the hydraulic press 200, but when a positioning sensor of the hydraulic press 200 fails, the upper plate 101 may move upwards continuously, and the entire die carrier may be damaged.

Therefore, the connecting cylinder 110 and the pressing block flange 111 are further arranged, openings are formed in the upper end and the lower end of the connecting cylinder 110, a pull nail 112 is arranged in the connecting cylinder 110, the pull nail 112 can penetrate through the opening in the lower end of the connecting cylinder 110 to be fixedly connected with the upper plate 101, and the upper end of the connecting cylinder 110 is fixedly connected with the pressing block flange 111; the outer sleeve of the rivet 112 is provided with a buffer block 113, and both ends of the buffer block 113 are respectively abutted against the rivet 112 and the connecting cylinder 110. The buffer block 113 is specifically a polyurethane buffer block 113; safety grooves 114 are provided on the pull stud 112, which can break when the pulling force is excessive.

When the forming die frame is used, the pressing block flange 111 is connected with the hydraulic press 200, so that when the conventional hydraulic press 200 is not accurately positioned, the pull nails 112 can be broken in the continuous traction process of the upper plate 101, and the forming die frame is further prevented from being damaged.

Further, the sliding connection between the upper plate 101, the lower plate 102 and the base 100 can be realized by adopting various structures, such as setting slide rails and the like; the following structural arrangement is preferably adopted:

the base 100 is fixed with guide posts 115, and the upper plate 101 and the lower plate 102 are slidably connected with the base 100 through the guide posts 115; the device also comprises guide post fixing plates 116, at least two guide posts 115 are arranged, and the upper end of each guide post 115 is fixedly connected with the guide post fixing plate 116.

Further, in order to limit the distance that the lower plate 102 moves, a lower punch height adjusting block 118 is fixed to the lower plate 102, and the lower punch height adjusting block 118 can abut against the base 100. Lower punch height adjustment block 118 may be fixedly attached to lower plate 102 by bolts; undershoot height adjustment blocks 118 of different heights may be replaced as desired.

Further, the retaining member 106 has a lock nut, and both ends of the ejector rod 104 are screwed with the lock nuts, that is, the upper plate 101 and the lower plate 102 are retained by the nuts.

Further, the punch press further comprises a mandrel 122, the lower end of the mandrel 122 is fixedly connected with the base 100, and the mandrel 122 can extend into the lower punch 109.

Further, the female die mounting plate 103 is fixedly connected with the base 100 through a female die block 117; the female die mounting plate 103, the female die heightening block 117 and the base 100 can be fixedly connected in a bolt mode; the height of the female die mounting plate 103 can also be adjusted by replacing the female die raising block 117 of different heights as required.

Further, the upper punch 108, the lower punch 109 and the die 107 may be directly and fixedly connected to the upper plate 101, the lower plate 102 and the die mounting plate 103; however, for ease of installation and replacement, corresponding upper and lower punch blocks 119, 120 may be provided; the upper punch 108 is fixedly connected with the upper plate 101 through an upper punch block 119, and the lower punch 109 is fixedly connected with the lower plate 102 through a lower punch block 120; similarly, the female die 107 may be fixedly connected to the female die mounting plate 103 via a female die pressing plate 121.

Specifically, the method comprises the following steps: the upper punch block 119 and the lower punch block 120 are provided with stepped holes, the upper punch 108 and the lower punch 109 are provided with corresponding stepped portions, and both the upper punch block 119 and the lower punch block 120 are fixedly connected with the upper plate 101 and the lower plate 102 in a bolt manner, so that the upper punch 108 and the lower punch 109 are respectively and fixedly pressed on the upper plate 101 and the lower plate 102. The female die pressing plate 121 can be arranged in a flange structure and is in bolted connection with the female die mounting plate 103; corresponding step through holes are formed in the female die mounting plate 103, the female die 107 is placed into the step through holes, and then the female die pressing plate 121 is screwed and tightly pressed through bolts.

Example 2

The demoulding rod 104 is arranged in the embodiment 1, so that the demoulding of the pressed workpiece can be realized, but the placing process also needs manual operation, and the efficiency is not high; therefore, a conveying mechanism is arranged on the basis of the embodiment 1, and conveying of the workpiece to be shaped and the shaped workpiece is realized through the conveying mechanism.

As shown in fig. 6 to 17, a shaping machine comprises a hydraulic machine 200 and a shaping mold frame, wherein a base 100 of the shaping mold frame is fixed on a workbench of the hydraulic machine 200, and a movable beam of the hydraulic machine 200 is fixedly connected with an upper plate 101 of the shaping mold frame to drive the upper plate 101 to move up and down;

the hydraulic press 200 is provided with a conveying mechanism, the conveying mechanism comprises a feeding and discharging mechanism 201 and a movable material picking paw 202, and the workpieces are transferred through the feeding and discharging mechanism 201 and the material picking paw 202.

During shaping, a workpiece to be shaped at the feeding and discharging mechanism 201 is transferred to a shaping die carrier through the material picking paw 202 to carry out shaping operation; after shaping, the workpiece shaped at the shaping die set is transferred to the feeding and discharging mechanism 201 through the material picking paw 202, and the shaped workpiece is transferred through the feeding and discharging mechanism 201.

Further, the loading and unloading mechanism 201 comprises a support frame 203, a first telescopic cylinder 204 and a second telescopic cylinder 205, and the support frame 203 is fixedly connected with a workbench of the hydraulic press 200; the first telescopic cylinder 204 and the second telescopic cylinder 205 are any one of an electric cylinder, an air cylinder or an oil cylinder; preferably, the electric cylinder is used, and although the disposable investment is high, the energy consumption is greatly reduced, the operation is stable and reliable, and the use cost is low in the long run.

A feeding groove 206 is fixed on the supporting frame 203, the first telescopic cylinder 204 is fixedly connected with the supporting frame 203 or the feeding groove 206, a feeding opening 2060 and a discharging opening 2061 are arranged on the feeding groove 206, a first conveyor 209 and a second conveyor 210 are respectively arranged at the feeding opening 2060 and the discharging opening 2061, and the second telescopic cylinder 205 is positioned above the discharging opening 2061 and is fixedly connected with the supporting frame 203 or the feeding groove 206.

A turning plate 207 is hinged on the feeding groove 206, a torsion spring 208 is arranged at the hinged position, and the turning plate 207 is used for shielding the discharging opening 2061; the number of the turning plates 207 can be set according to the actual situation, and preferably two turning plates 207 are provided, and the two turning plates 207 form a structure of a 'split door'.

The pick-up gripper 202 can be moved below the feed opening 2061 and above the female die 107, so that the workpiece is transferred.

The working process of the loading and unloading mechanism 201 is as follows: a workpiece to be shaped on the first conveyor 209 enters the feeding groove 206 through the feeding port 2060, and the workpiece in the feeding groove 206 is pushed to the discharging port 2061 through the extension of the piston rod of the first telescopic cylinder 204; the piston rod of the second telescopic cylinder 205 moves down to push the workpiece at the feed opening 2061 to the material picking claw 202, and push the shaped workpiece clamped on the material picking claw 202 out to the second conveyor 210, and the second conveyor 210 conveys the shaped workpiece to the next process (position).

After the unshaped workpiece is pushed out by the second telescopic cylinder 205 to finish the finished product, the unshaped workpiece stays on the material picking paw 202; the material picking paw 202 moves to enable a product to stay above a female die 107 of the shaping die set; then, the shaping is carried out according to the steps in the embodiment 1; after shaping, the lower punch 109 is lifted to separate the shaped workpiece from the female die 107, and the workpiece is pushed into the material picking paw 202 above the female die 107; finally, the material picking claw 202 drives the shaped workpiece to move to the material outlet 2061, and waits for the material loading and unloading action (the second telescopic cylinder 205 extends).

During the shaping process, whether one of the pick-up grippers 202 is on the female mould 107 or not is avoided, thus saving time for gripping and releasing the grippers.

Specifically, the method comprises the following steps: the cylinder body of the first telescopic cylinder 204 is fixedly connected with the support frame 203, and the telescopic rod of the first telescopic cylinder can extend into the feeding trough 206, so that the workpiece in the feeding trough 206 is pushed to move. The cylinder body of the second telescopic cylinder 205 is fixedly connected with the feeding chute 206, and the telescopic rod of the second telescopic cylinder can extend to the discharging opening 2061, so that a workpiece above the discharging opening 2061 is ejected; during the ejection process, the flap 207 is pushed away, so that the workpiece can enter the material picking gripper 202 from the feed opening 2061, and when the piston rod of the second telescopic cylinder 205 retracts, the flap 207 is reset to shield the feed opening 2061 again.

One or two support frames 203 can be arranged, and the two support frames 203 are respectively used for fixing the feeding trough 206 and the first telescopic cylinder 204. The concrete setting and adjustment can be carried out according to actual conditions. The piston rod of the second telescopic cylinder 205 can directly push the workpiece to move, but in order to increase the contact area with the workpiece, a corresponding push plate 2040 can be fixedly connected to the front end of the piston rod of the second telescopic cylinder 205, and the push plate 2040 can be slidably connected to the feeding chute 206.

Further, the pick-up gripper 202 may be a spring gripper as in the prior art, which requires additional power to clamp the workpiece by the spring 105. Of course, it is also possible to use a prior art gripper or a gripper cylinder, but these require additional power to clamp the workpiece.

The lower end of a workpiece to be pressed is provided with a step (reducing) structure, and chamfers are arranged on the upper surface and the lower surface of the workpiece; therefore, when the second telescopic cylinder 205 pushes the workpiece (not shaped) downward, the workpiece can push the workpiece (shaped) on the material picking claw 202 to be ejected, and with the downward movement, the material picking claw 202 is spread by the workpiece to be clamped. When demoulding, the lower punch 109 drives the shaped workpiece to move upwards and open (push into) the material picking paw 202 so as to be clamped.

Further, the material picking paw 202 drives the material picking paw 202 to move through the driving mechanism 211; the driving mechanism 211 is any one of a linear moving mechanism, a linear motor, and a servo linear module. The drive mechanism 211 may be fixed to the hydraulic machine 200 or may be fixed to the ground.

Taking the servo linear module as an example, the fixed part is fixed on the workbench of the hydraulic press 200, and the material picking claw 202 is fixedly connected with the movable part of the servo linear module, so as to drive the material picking claw 202 to move.

Further, in order to improve the working efficiency, two conveying mechanisms are provided, and the two conveying mechanisms are respectively positioned at the left side and the right side of the hydraulic press 200; the material picking claws 202 in the two conveying mechanisms are respectively connected with a driving mechanism 211 or are both connected with the same driving mechanism 211, and preferably, the material picking claws 202 in the two conveying mechanisms are driven to move by one driving mechanism 211. Specifically, the method comprises the following steps: both the two material picking claws 202 (hereinafter, the gripper mounting plates 224) are fixed to the mounting plates 224, and the mounting plates 224 are fixedly connected to the moving portion of the driving mechanism 211.

Further, the material picking paw 202 comprises a paw mounting plate 224 and two paw jaws 213, wherein the two paw jaws 213 are respectively connected with the paw mounting plate 212 through a link mechanism 214, and the workpiece is clamped by the two paw jaws 213.

The locking device is characterized by further comprising a connecting rod 215, the two connecting rod mechanisms 214 are connected with the connecting rod 215, a locking pull rod 216 is arranged between the connecting rod 215 and the paw mounting plate 212, the locking pull rod 216 is connected with the paw mounting plate 212 in a sliding mode, one end of the locking pull rod 216 is fixedly connected with the connecting rod 215, and the other end of the locking pull rod 216 is connected with an adjusting nut 217 in a threaded mode.

A clamping spring 218 is sleeved on the locking pull rod 216, and two ends of the clamping spring 218 are respectively abutted against the paw mounting plate 212 and the adjusting nut 217. By rotating the adjusting nut 217, the deformation of the clamping spring 218 can be changed, thereby adjusting the clamping force.

In use, a workpiece is pushed/jacked into the front ends of the two gripper jaws 213, increasing the distance between the two gripper jaws 213 and deforming the clamping spring 218, thereby clamping the workpiece.

Further, the link mechanism 214 specifically includes a swing rod 219 and a driving swing rod 220, two ends of the swing rod 219 are respectively hinged to the gripper jaw 213 and the gripper mounting plate 212, one end of the driving swing rod 220 is hinged to the gripper jaw 213, the other end is hinged to the connecting rod 215 through a hinge plate 223, and two ends of the hinge plate 223 are respectively hinged to the other end of the driving swing rod 220 and the connecting rod 215; the middle part of the driving swing rod 220 is hinged with the paw mounting plate 212.

Further, the first conveyor 209 and the second conveyor 210 are preferably conveyor belts in the prior art, and specifically, belt conveyor belts are used. Specifically, the method comprises the following steps: one end of the first conveyor 209 is located at the feeding port 2060, the other end of the first conveyor 209 is located at the flat plate feeder 221, and the workpiece on the flat plate feeder 221 is transferred into the feeding groove 206 through the first conveyor 209; one end of the second conveyor 210 is located below the feed opening 2061, the other end of the second conveyor is located at the disk blanking machine 222, and the shaped workpiece is conveyed to the disk blanking machine 222 through the second conveyor 210.

Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are included in the scope of the present invention.

Claims

1. The utility model provides a take plastic die carrier of automatic demoulding mechanism which characterized in that: the demoulding device comprises a base (100), an upper plate (101), a lower plate (102), a female die mounting plate (103) and a demoulding rod (104), wherein the upper plate (101) and the lower plate (102) are both connected with the base (100) in a sliding manner, and the upper plate (101) is positioned above the lower plate (102); the demolding rod (104) is connected with the upper plate (101) and the lower plate (102) in a sliding mode, a spring (105) is sleeved on the demolding rod (104), two ends of the spring (105) are respectively abutted against the upper plate (101) and the lower plate (102), limiting parts (106) are fixed to two ends of the demolding rod (104), and the limiting parts (106) limit the movement of the upper plate (101) and the lower plate (102) to prevent the demolding rod (104);

the female die mounting plate (103) is positioned between the upper plate (101) and the lower plate (102) and is fixedly connected with the base (100), and a female die (107) is fixed on the female die mounting plate (103); an upper punch (108) is fixed on the upper plate (101), a lower punch (109) is fixed on the lower plate (102), the upper punch (108) and the lower punch (109) are oppositely arranged, and both the upper punch (108) and the lower punch (109) can extend into the female die (107).

2. The shaping die carrier with the automatic demolding mechanism according to claim 1, wherein: the connecting device is characterized by further comprising a connecting cylinder (110) and a pressing block flange (111), wherein openings are formed in the upper end and the lower end of the connecting cylinder (110), a pull nail (112) is arranged in the connecting cylinder (110), the pull nail (112) can penetrate through the opening in the lower end of the connecting cylinder (110) to be fixedly connected with the upper plate (101), and the upper end of the connecting cylinder (110) is fixedly connected with the pressing block flange (111); the blind rivet (112) is sleeved with a buffer block (113), and two ends of the buffer block (113) are respectively propped against the blind rivet (112) and the connecting cylinder (110).

3. The shaping die carrier with the automatic demolding mechanism according to claim 2, wherein: a safety groove (114) is arranged on the blind rivet (112).

4. The shaping die carrier with the automatic demolding mechanism according to claim 1, characterized in that: the base (100) is fixed with guide posts (115), and the upper plate (101) and the lower plate (102) are in sliding connection with the base (100) through the guide posts (115); the device is characterized by further comprising at least two guide post fixing plates (116), wherein the upper end of each guide post (115) is fixedly connected with the guide post fixing plate (116); and a lower punching height adjusting block (118) is fixed on the lower plate (102), and the lower punching height adjusting block (118) can be abutted against the base (100).

5. The shaping die carrier with the automatic demolding mechanism according to claim 1, characterized in that: the limiting piece (106) is a locking nut, and two ends of the demolding rod (104) are in threaded connection with the locking nut; the punching die further comprises a mandrel (122), the lower end of the mandrel (122) is fixedly connected with the base (100), and the mandrel (122) can extend into the lower punch (109).

6. A trimmer, characterized in that: the shaping die carrier comprises a hydraulic machine (200) and the shaping die carrier as claimed in any one of claims 1 to 5, wherein a base (100) of the shaping die carrier is fixed on a workbench of the hydraulic machine (200), and a movable beam of the hydraulic machine (200) is fixedly connected with an upper plate (101) of the shaping die carrier to drive the upper plate (101) to move up and down;

the hydraulic machine (200) is provided with a conveying mechanism, the conveying mechanism comprises a feeding and discharging mechanism (201) and a movable material picking paw (202), and the workpiece is transferred through the feeding and discharging mechanism (201) and the material picking paw (202).

7. The trimmer of claim 6, wherein: the feeding and discharging mechanism (201) comprises a support frame (203), a first telescopic cylinder (204) and a second telescopic cylinder (205), and the support frame (203) is fixedly connected with a workbench of the hydraulic machine (200); the first telescopic cylinder (204) and the second telescopic cylinder (205) are any one of an electric cylinder, a pneumatic cylinder or an oil cylinder;

a feeding groove (206) is fixed on the supporting frame (203), the first telescopic cylinder (204) is fixedly connected with the supporting frame (203) or the feeding groove (206), a feeding opening (2060) and a discharging opening (2061) are arranged on the feeding groove (206), a first conveyor (209) and a second conveyor (210) are respectively arranged at the feeding opening (2060) and the discharging opening (2061), and the second telescopic cylinder (205) is positioned above the discharging opening (2061) and is fixedly connected with the supporting frame (203) or the feeding groove (206); a turning plate (207) is hinged on the feeding trough (206), a torsion spring (208) is arranged at the hinged position, and the turning plate (207) is used for shielding the discharging opening (2061); the material picking paw (202) can move to the lower part of the feed opening (2061) and the upper part of the female die (107);

a workpiece to be shaped on the first conveyor (209) enters the feeding groove (206) through the feeding port (2060), and the workpiece in the feeding groove (206) is pushed to the discharging port (2061) through the first telescopic cylinder (204); the workpiece at the feed opening (2061) is pushed onto the material picking paw (202) through the second telescopic cylinder (205), and the shaped workpiece clamped on the material picking paw (202) is ejected onto the second conveyor (210).

8. A shaper according to claim 6 or 7, characterized in that: the material picking paw (202) adopts a spring paw; the material picking paw (202) is connected with a driving mechanism (211), and the material picking paw (202) is driven to move by the driving mechanism (211); the driving mechanism (211) adopts any one of a linear moving mechanism, a linear motor or a servo linear module; the first conveyor (209) and the second conveyor (210) both adopt conveying belts;

the two conveying mechanisms are respectively positioned at the left side and the right side of the hydraulic machine (200); the material picking claws (202) in the two conveying mechanisms are respectively connected with a driving mechanism (211) or are both connected with the same driving mechanism (211).

9. The trimmer of claim 6, wherein: the material picking paw (202) comprises a paw mounting plate (224) and two paw jaws (213), wherein the two paw jaws (213) are respectively connected with the paw mounting plate (212) through a link mechanism (214); the locking mechanism is characterized by further comprising a connecting rod (215), the two connecting rod mechanisms (214) are connected with the connecting rod (215), a locking pull rod (216) is arranged between the connecting rod (215) and the paw mounting plate (212), the locking pull rod (216) is connected with the paw mounting plate (212) in a sliding mode, one end of the locking pull rod (216) is fixedly connected with the connecting rod (215), and the other end of the locking pull rod (216) is connected with an adjusting nut (217) in a threaded mode; the locking pull rod (216) is sleeved with a clamping spring (218), and two ends of the clamping spring (218) are respectively propped against the paw mounting plate (212) and the adjusting nut (217).

10. A shaper according to claim 9, wherein: the link mechanism (214) comprises a swing rod (219) and a driving swing rod (220), two ends of the swing rod (219) are hinged with the gripper jaw (213) and the gripper mounting plate (212) respectively, one end of the driving swing rod (220) is hinged with the gripper jaw (213), the other end of the driving swing rod (220) is hinged with the connecting rod (215) through a hinged plate (223), and two ends of the hinged plate (223) are hinged with the other end of the driving swing rod (220) and the connecting rod (215) respectively; the middle part of the driving swing rod (220) is hinged with the paw mounting plate (212).