CN207724458U - A kind of plastic parts stamping equipment - Google Patents

Abstract

The utility model discloses stamping equipment for plastic parts, which comprises a bottom frame, an upper bracket, a first-stage cylinder and a second-stage cylinder, a template is placed above the bottom frame, the upper bracket is fixedly installed on the bottom frame, and The upper bracket is located outside the template; the top of the upper bracket is equipped with the first-level cylinder, the first-level cylinder is electrically connected to the controller, and the piston rod of the first-level cylinder extends vertically downward, and A connecting plate is installed on the head of the piston rod of the first-stage cylinder, and a guide column is arranged above the connecting plate, and the guide column is vertically upward. The beneficial effect is that: the workpiece is pressed by the pressing mechanism, thereby preventing the punching head from lifting the workpiece upward; by setting the primary cylinder and the secondary cylinder, the The stamping head descends quickly before touching the workpiece, and descends slowly after touching the workpiece, thereby reducing the time spent on plastic hot stamping and improving production efficiency.

Description

A stamping equipment for plastic parts

technical field

The utility model relates to the field of processing plastic parts, in particular to a punching equipment for plastic parts.

Background technique

Compared with metal, stone, and wood, plastic products have the advantages of low cost and strong plasticity, so they are widely used in the national economy. Plastic processing methods include injection molding, extrusion molding, calendaring molding, blow molding, stamping molding, etc. The stamping of plastics can be divided into cold stamping and hot stamping.

The applicant found that there are at least the following technical problems in the prior art: when the punch is lifted up when the punch is cold punched, the workpiece on the template is easy to hang on the punch and move up together, causing the punch to unload Difficult, but in hot stamping, due to the need to slowly stamp the plastic, the feed speed of the stamping cylinder is usually relatively slow, resulting in a long time-consuming useless stroke of the punch before it contacts the plastic, resulting in low stamping efficiency and the punch When pushing the material, because the formed plastic is wrapped on the outside of the punch, it is easy to stick to the punch, which makes it difficult to return the formed plastic.

Utility model content

The purpose of this utility model is to provide a stamping equipment for plastic parts in order to solve the above problems, so as to solve the problem that in the prior art, when the punch is moved up, the workpiece is easy to be lifted up when the punch is moved up, resulting in difficulty in unloading and heat. During stamping, the useless stroke of the punch takes a long time, resulting in technical problems such as low stamping efficiency and difficulty in returning materials. Among the many technical solutions provided by the utility model, the preferred technical solution has: press the workpiece through the pressing mechanism, thereby solving the problem of difficult material return of the stamping head during cold punching and hot stamping, and During stamping, the first-stage cylinder first drives the stamping head to quickly descend, thereby shortening the time spent by the stamping head in the useless stroke section and other technical effects, which are described in detail below.

In order to achieve the above object, the utility model provides the following technical solutions:

The utility model provides a stamping equipment for plastic parts, comprising a bottom frame, an upper bracket, a primary cylinder and a secondary cylinder, a template is placed above the bottom frame, the upper frame is fixedly installed on the bottom frame, and The upper bracket is located outside the template;

The first-stage air cylinder is installed on the top of the upper support, and the first-stage air cylinder is electrically connected to the controller. The piston rod of the first-stage air cylinder extends vertically downward, and the piston rod head of the first-stage air cylinder A connecting plate is installed, and a guide column is arranged above the connecting plate, and the guide column is vertically upward, and the upper end passes through the top of the upper bracket;

The secondary cylinder is installed below the connecting plate, the secondary cylinder is electrically connected to the controller, and the piston rod of the secondary cylinder extends vertically downwards, and the cylinder body of the secondary cylinder A fixed plate is installed on the head, and a vertically downward pressing mechanism is installed on the fixed plate; the pressing mechanism includes a pressing guide column, a pressing plate and a spring, and the pressing guide column penetrates the fixing plate up and down , the bottom of the pressing guide post is provided with the pressure plate, the spring is arranged above the pressing plate, and the spring is sleeved on the outer circle of the pressing guide post; the piston rod of the secondary cylinder The head is equipped with a punching head;

A photoelectric switch is arranged on one side of the pressing mechanism, the detection probe of the photoelectric switch faces the pressing mechanism, and the photoelectric switch is electrically connected to the controller;

The controller is fixedly installed on the outside of the upper bracket.

Using the above-mentioned stamping equipment for plastic parts, during cold punching, the first-stage cylinder first protrudes downwards, so that the pressing plate of the pressing mechanism is pressed against the surface of the workpiece above the template, and when the photoelectric When the switch detects the fixed plate, it transmits the detection signal to the controller, and the controller controls the first-stage cylinder to stop, and at the same time controls the second-stage cylinder to start, driving the stamping head down quickly. Stretch out to punch the workpiece on the template. When the stamping head is retracted upward, because the pressure plate is always pressed against the workpiece, the stamping head can pass through the workpiece smoothly and lift upwards, thereby To solve the problem of difficult unloading, during hot stamping, the extension and retraction speed of the secondary cylinder is set by the controller, so that the extension speed of the secondary cylinder adapts to the plastic stretching speed of the plastic, and the shrinkage The return speed is set to 3-4 times of the extension speed. First, the first-stage cylinder is extended downward quickly, so that the pressing mechanism is pressed against the workpiece of the template. When the photoelectric switch detects When the fixed plate is fixed, the detection signal is sent to the controller, and the controller controls the first-stage air cylinder to stop moving, and at the same time controls the second-stage air cylinder to extend downward slowly, so as to move the workpiece toward the Stamping in the cavity causes the workpiece to undergo plastic deformation. When pushing the material, the secondary cylinder quickly retracts, and at the same time, the workpiece remains on the template under the action of the pressure plate, thereby preventing the formed plastic from sticking to the mold. On the stamping head, the stamping speed of hot stamping can also be greatly improved.

Preferably, the template is provided with a punching hole, and the punching hole corresponds to the punching head up and down.

Preferably, there are at least two guide columns, which are arranged symmetrically on both sides of the first-stage cylinder, and the guide columns are slidingly connected to the upper bracket through linear bearings.

Preferably, the fixing plate is installed on the cylinder body of the secondary cylinder through bolts.

Preferably, the photoelectric switch is mounted on the upper bracket through threads.

The beneficial effects are as follows: 1. The utility model presses the workpiece through the pressing mechanism, thereby preventing the workpiece from being lifted up when the stamping head is lifted upward;

2. By setting the first-stage cylinder and the second-stage cylinder, the stamping head will drop rapidly before it touches the workpiece, and then drop slowly after touching the workpiece, thereby reducing the time spent on plastic hot stamping and improving production efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the front view of the utility model;

Fig. 2 is a block diagram of the control system of the present utility model.

The reference signs are explained as follows:

1. Underframe; 2. Formwork; 3. Top pressure mechanism; 31. Press plate; 32. Top pressure guide column; 33. Spring; 4. Fixed plate; 5. Secondary cylinder; 6. Primary cylinder; 7. Guide Column; 8. Connecting plate; 9. Upper bracket; 10. Controller; 11. Photoelectric switch; 12. Punching head.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other implementations obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

Referring to Fig. 1-Fig. 2, the utility model provides a kind of stamping equipment for plastic parts, comprising a chassis 1, an upper bracket 9, a primary cylinder 6 and a secondary cylinder 5, a template 2 is placed above the chassis 1, and the upper The bracket 9 is fixedly installed on the bottom frame 1, and the upper bracket 9 is located outside the formwork 2;

A first-stage cylinder 6 is installed on the top of the upper support 9, and the first-stage cylinder 6 is electrically connected to the controller 10. The piston rod of the first-stage cylinder 6 extends vertically downward, and the head of the piston rod of the first-stage cylinder 6 is equipped with a connecting plate 8 , a guide post 7 is arranged above the connecting plate 8, the guide post 7 is vertically upward, and the upper end passes through the top of the upper bracket 9;

The secondary cylinder 5 is installed below the connection plate 8, the secondary cylinder 5 is electrically connected to the controller 10, and the piston rod of the secondary cylinder 5 extends vertically downwards, and the cylinder head of the secondary cylinder 5 is equipped with a fixed plate 4. The fixed plate 4 is equipped with a vertically downward pressing mechanism 3; the pressing mechanism 3 includes a pressing guide post 32, a pressing plate 31 and a spring 33, the pressing guide post 32 runs through the fixing plate 4 up and down, and the pressing guide post 32 is provided with a pressing plate 31 on the bottom of the pressing plate 31, and a spring 33 is arranged above the pressing plate 31, and the spring 33 is sleeved on the outer circle of the pressing guide post 32. Finally, through its own compression, the pressure plate 31 maintains a certain pre-pressure, thereby compressing the workpiece; the piston rod head of the secondary cylinder 5 is equipped with a stamping head 12;

One side of the pressing mechanism 3 is provided with a photoelectric switch 11, the detection probe of the photoelectric switch 11 faces the pressing mechanism 3, and the photoelectric switch 11 is electrically connected with the controller 10;

The controller 10 is fixedly installed on the outside of the upper bracket 9 .

Preferably, the template 2 is provided with a punching hole, and the punching hole corresponds to the punching head 12 up and down, so that the punching head 12 can extend into the punching hole to complete the plastic blanking or hot stamping deformation process.

There are at least two guide columns 7, and they are arranged symmetrically on both sides of the first-stage cylinder 6. The guide columns 7 and the upper bracket 9 are slidingly connected by linear bearings. This arrangement facilitates the connection plate 8 to move through the guide columns 7 during the lifting process. Keeping the balance, the guide column 7 is slidably connected with the upper bracket 9, so that the connecting plate 8 can be lifted and lowered freely under the action of the primary cylinder 6.

The fixed plate 4 is installed on the cylinder block of the secondary cylinder 5 by bolts, so that the fixed plate 4 and the secondary cylinder 5 can be lifted together under the action of the primary cylinder 6, so that when the primary cylinder 6 descends, Firstly drive the pressing mechanism 3 to press and fix the workpiece.

The photoelectric switch 11 is mounted on the upper bracket 9 by threads, so that the photoelectric switch 11 is conveniently fixed, and the photoelectric switch 11 is convenient for detecting the fixed plate 4 .

With the above structure, during cold punching, the primary cylinder 6 first protrudes downwards, so that the pressing plate 31 of the pressing mechanism 3 is pressed against the surface of the workpiece above the template 2, and when the photoelectric switch 11 detects the fixing plate 4, the The detection signal is transmitted to the controller 10, the controller 10 controls the primary cylinder 6 to stop, and at the same time controls the secondary cylinder 5 to start, driving the stamping head 12 to quickly extend downwards to punch the workpiece on the template 2, the stamping head 12 When retracting upwards, since the pressing plate 31 is always pressed against the workpiece, the stamping head 12 can pass through the workpiece and be lifted upwards, thereby solving the problem of difficult unloading. During hot stamping, the controller 10 is used to set the secondary cylinder The stretching and retracting speed of 5 makes the stretching speed of the secondary cylinder 5 adapt to the plastic stretching speed of the plastic, and the retracting speed is set at 3-4 times of the stretching speed. First, the primary cylinder 6 extends downward quickly. When the photoelectric switch 11 detects the fixed plate 4, the detection signal is sent to the controller 10, and the controller 10 controls the first-stage cylinder 6 to stop moving, and at the same time controls the The secondary cylinder 5 slowly extends downwards to press the workpiece into the mold cavity of the template 2, causing the workpiece to undergo plastic deformation. On the template 2, thereby avoiding the formed plastic from sticking to the stamping head 12, it can also greatly increase the stamping speed of hot stamping.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (5)

1. A stamping equipment for plastic parts, characterized in that: it comprises an underframe (1), an upper bracket (9), a primary cylinder (6) and a secondary cylinder (5), and the underframe (1) is placed with template (2), the upper bracket (9) is fixedly installed on the underframe (1), and the upper bracket (9) is located outside the template (2); The top of the upper bracket (9) is equipped with the primary cylinder (6), the primary cylinder (6) is electrically connected to the controller (10), and the piston rod of the primary cylinder (6) is vertically protruding from the bottom, and the piston rod head of the first-stage cylinder (6) is equipped with a connecting plate (8), and a guide post (7) is arranged above the connecting plate (8), and the guide post (7) is vertical Straight upwards, and the upper end passes through the top of the upper bracket (9); The secondary cylinder (5) is installed below the connecting plate (8), the secondary cylinder (5) is electrically connected to the controller (10), and the piston rod of the secondary cylinder (5) Stretch out vertically downwards, the cylinder head of described secondary air cylinder (5) is equipped with fixed plate (4), and described fixed plate (4) is equipped with vertically downward pressing mechanism (3); The pressing mechanism (3) comprises a pressing guide post (32), a pressing plate (31) and a spring (33), the pressing guide post (32) penetrates the fixed plate (4) up and down, and the pressing The bottom of the guide post (32) is provided with the press plate (31), the spring (33) is provided above the press plate (31), and the spring (33) is sleeved on the pressing guide post (32). ) on the outer circle; the piston rod head of the secondary cylinder (5) is equipped with a stamping head (12); One side of the pressing mechanism (3) is provided with a photoelectric switch (11), the detection probe of the photoelectric switch (11) faces the pressing mechanism (3), and the photoelectric switch (11) and the controller (10) electrical connection; The controller (10) is fixedly installed on the outside of the upper bracket (9). 2. The stamping equipment for plastic parts according to claim 1, characterized in that: the template (2) is provided with a punching hole, and the punching hole corresponds to the punching head (12) up and down. 3. The stamping equipment for plastic parts according to claim 1, characterized in that: at least two guide columns (7) are arranged symmetrically on both sides of the first-stage cylinder (6), and the guide columns (7) is slidingly connected with the upper bracket (9) through a linear bearing. 4. The stamping equipment for plastic parts according to claim 1, characterized in that: the fixing plate (4) is mounted on the cylinder body of the secondary cylinder (5) through bolts. 5. The stamping equipment for plastic parts according to claim 1, characterized in that: the photoelectric switch (11) is mounted on the upper bracket (9) through threads.