TWM597216U - Hot press forming machine - Google Patents

Abstract

This creation discloses a hot press forming machine, which includes a heating furnace and a hydraulic forming machine. The heating furnace is composed of an upper heating plate, a lower heating plate, a slide rail seat, and a frame. The hydraulic forming machine includes a four-column hydraulic machine and four guide columns installed on it The discharge base on the top, the slider and the bottom plate of the four-column hydraulic machine are respectively equipped with a female mold and a male mold. The slide rail seat of the heating furnace and the discharge base of the hydraulic forming machine are equipped with slide rails and Under the action of the electronic control system, the clamping frame moving on the sliding rail is docked with the sliding rail of the sliding base and the clamping frame can be moved between the hydraulic forming machine and the heating furnace. The sheet to be formed is clamped on the clamping frame and moved into the heating furnace. The heated and softened sheet is moved into the hydraulic forming machine with the clamping frame. The female mold and the male mold are pressed against each other. After cooling and shaping, the shell is formed. . This creation has high production efficiency, low labor intensity, and good molding quality.

Description

Hot press forming machine

This creation relates to a shell molding device, especially a hot-press molding device that forms a plastic composite sheet or a plastic sheet into a three-dimensional shell, for example, a plastic composite sheet or a plastic sheet into a suitcase case.

Conventional suitcase shells are usually formed into a suitcase shell by a single-layer plastic sheet by vacuum blister molding or injection molding process, but neither vacuum blister molding nor injection molding can mold plastic composite sheets . In addition, compared to plastic composite sheets, the suitcase shell molded from a single-layer plastic sheet has poor toughness, is easily damaged by impact during use, and its low temperature resistance is poor. When used in severe cold environments, the shell will change Brittle and easily broken.

Conventionally, forming a plastic case from a plastic composite sheet into a suitcase case is usually accomplished using separate heating equipment and a press, namely a hot-air oven and a universal four-column hydraulic press. The production process is fully manual, that is, a piece of composite sheet is manually Put it in a hot air oven for heating. After heating and softening, manually take it out of the oven, and then put it into the mold of the hydraulic machine to start the hydraulic press to form. This type of equipment has low production efficiency and high labor intensity. The temperature cannot be accurately controlled, and the product defect rate is high. Because the standard four-column hydraulic press does not have a sheet clamping device suitable for the molding process, it also results in a high product defect rate. Heating the plastic composite sheet with a hot air oven has a long heating time. The problem of low heating efficiency. Therefore, it is necessary to develop a thermoforming machine which is integrated with thermoforming and conforms to the thermoforming process.

This creation provides a hot press forming machine, which combines a heating furnace and a hydraulic forming machine as a whole device to improve production efficiency, reduce labor intensity, and make the product defective rate low.

The hot press forming machine of this creation includes a heating furnace and a hydraulic forming machine arranged side by side. The heating furnace is composed of an upper heating plate, a lower heating plate, a slide rail seat and a frame. The upper heating plate, the lower heating plate and the slide rail seat are It can be fixed on the frame by moving up and down. The hydraulic forming machine includes a four-column hydraulic machine and a discharge base. The slider and the bottom plate of the four-column hydraulic machine are respectively equipped with a female mold and a male mold. The discharge base is installed on the four-column hydraulic machine. The four guide columns are located between the slider and the bottom plate of the four-column hydraulic machine. The slide rail seat of the heating furnace and the discharge base of the hydraulic forming machine are equipped with slide rails. The clamping frame moving on the rail can move between the hydraulic forming machine and the heating furnace when the sliding rail of the sliding rail seat and the sliding rail of the discharge base are docked.

The upper heating plate, the lower heating plate and the slide rail seat are respectively fixed on the frame of the heating furnace by a cantilever structure which can move up and down. The cantilever structure that can move up and down includes a linear guide rail and a transmission mechanism, the upper heating plate is installed on the first linear guide rail, the first transmission mechanism is driven by a motor to drive the upper heating plate to move up and down on the first linear guide rail, and the lower heating plate is installed On the second linear guide rail, the second heating mechanism is driven by the motor to drive the lower heating plate to move up and down on the second linear guide rail, the slide rail seat is installed on the third linear guide rail, and the third transmission mechanism is driven by the motor to drive the sliding The rail seat moves up and down on the third linear guide rail.

The upper heating plate and the lower heating plate are assembled by a plurality of far-infrared radiation heating elements, and each piece of far-infrared radiation heating element can be individually controlled in temperature.

The slide rail seat is provided with upper and lower double-layer slide rails, and a total of two material clamping frames are placed on the three pairs of slide rails of the discharge base and the slide rail seat.

The discharge base is provided with four guide holes, which are slidingly installed with the four guide columns of the four-column hydraulic machine, and the discharge base can move up and down along the four guide columns; the four corners of the discharge base are provided with four spring elements Supported on the base of the four-column hydraulic machine, the discharge base relies on the spring element to provide thrust for upward movement; the spring barrel of the spring element has an adjustment nut, and the height of the discharge base can be adjusted by the adjustment nut when it stops moving upward. Four push rods are installed at four corners of the slider of the four-column hydraulic press.

The clamping frame includes an upper clamping arm, a lower clamping frame, and a bracket. The lower clamping frame is fixed on the bracket. The upper clamping arm is mounted on the bracket by a rotating shaft. The upper clamping arm is driven and opened and closed by the rotating shaft. The material sheet is clamped, and the bracket is provided with a hook. The hot press forming machine is provided with a clamping frame push-pull mechanism. The clamping frame push-pull mechanism uses the hook to push the clamping frame to move.

The clamping frame push-pull mechanism is installed on the fourth linear guide rail, and the fourth transmission mechanism is driven by the motor to drive the clamping frame push-pull mechanism to move left and right on the fourth linear guide rail.

A loading table is added on the side of the heating furnace. The loading table, the heating furnace and the hydraulic forming machine are arranged in a row. The loading table is provided with a pair of slide rails, which are provided on the slide rails to move on the slide rails. Clip box.

The beneficial effects of this creation are:

The creative hot-press forming machine is an integrated device for heating and forming, which avoids manual movement of the sheet between the heating furnace and the hydraulic forming machine, reduces manual labor intensity, improves production efficiency, and improves product quality.

The clamping frame of this creative hot-press forming machine can be adjusted steplessly to adapt to different sheet sizes, which is convenient for production and eliminates the cost of supporting different specifications of clamping frames for different sizes of sheets.

The discharge base of the original hot press forming machine cooperates with the action of the hydraulic forming machine, which improves the quality of the molded product, and automatically releases the mold, reducing the labor intensity of the operator.

The upper heating plate, the lower heating plate and the slide rail seat of the original hot-press forming machine can move up and down, and the upper and lower heating plates can set a suitable heating distance according to different sheets to be formed, thereby improving the molding quality.

This creative hot press forming machine uses far-infrared radiation heating elements to heat the sheet to be formed, with high heating efficiency and fast heating speed.

The creation will be further described below with reference to the drawings and specific embodiments.

Example one

A double-station hot press forming machine, see Figure 1 and Figure 2, includes a heating furnace 1 and a hydraulic forming machine 2 arranged side by side. The heating furnace 1 is composed of an upper heating plate 3, a lower heating plate 4, a slide rail seat 5 and The frame 6 is composed of an upper heating plate 3, a lower heating plate 4 and a slide rail seat 5 fixed on the frame 6 in a movable manner. The hydraulic forming machine 2 of this embodiment is on the right side of the heating furnace 1. The hydraulic forming machine includes The four-column hydraulic machine 7 and the discharge base 8 are equipped with a female mold 11 and a male mold 12 on the slider 9 and the bottom plate 10 of the four-column hydraulic machine 7, respectively, and the discharge base 8 is installed on the four guide columns 24 of the four-column hydraulic machine 7 And the discharge base 8 is located between the slider 9 and the bottom plate 10 of the four-column hydraulic machine 7, and the slide rail seat 5 of the heating furnace 1 and the discharge base 8 of the hydraulic molding machine 2 are equipped with slide rails (such as The first slide rail 14, the second slide rail 15 and the third slide rail 23 described later) are provided with a first clamping frame 13 that can be moved on the slide rail, and a first slide rail on the slide rail seat 5 When the 14 or the third slide rail 23 and the second slide rail 15 of the discharge base 8 are docked, the first clamping frame 13 can move between the hydraulic molding machine 2 and the heating furnace 1. In use, the sheet to be formed is placed in the first clamping frame 13 on the discharge base 8 and clamped on the first clamping frame 13, and then moved into the heating furnace 1 to heat and soften the sheet As the first clamping frame 13 moves out to the hydraulic molding machine 2, the female mold 11 and the male mold 12 are pressed against each other, and the shell is formed after cooling and shaping.

The upper heating plate 3, the lower heating plate 4 and the slide rail seat 5 are respectively fixed on the frame 6 of the heating furnace by a cantilever structure movable up and down.

The cantilever structure that can move up and down includes a linear guide rail and a transmission mechanism. Specifically, the upper heating plate 3 is installed on the first linear guide rail 16, and the first transmission mechanism 17 is driven by a motor (common component, not shown in the figure) to drive the upper The heating plate 3 moves up and down on the first linear guide rail 16, the lower heating plate 4 is installed on the second linear guide rail 18, and the second transmission mechanism 19 is driven by a motor (common component, not shown) to drive the lower heating plate 4 Move up and down on the second linear guide rail 18, the slide rail seat 5 is installed on the third linear guide rail 20, and the third transmission mechanism 21 is driven by a motor (common component, not shown in the figure) to drive the slide rail seat 5 The third linear guide 20 is moved up and down. The transmission mechanism of the cantilever structure can be a ball screw transmission mechanism or a rack and pinion transmission mechanism.

The distances of the upper heating plate 3 and the lower heating plate 4 relative to the first slide rail 14 on the slide rail base 5 can be automatically adjusted according to settings. That is, different heating distances can be set according to different sheets to be formed.

The upper heating plate 3 and the lower heating plate 4 are assembled by a plurality of far-infrared radiation heating elements 22, and each piece of far-infrared radiation heating element 22 can be individually temperature controlled.

The far infrared radiation heating element 22 can be a far infrared ceramic heating plate or a far infrared quartz heating plate.

The slide rail seat 5 is provided with upper and lower double-layer slide rails, the upper layer is the first slide rail 14 and the lower layer is the third slide rail 23.

The discharge base 8 is provided with four guide holes, which are installed in sliding cooperation with the four guide columns 24 of the four-column hydraulic machine 7, and the discharge base 8 can move up and down along the four guide columns 24. The four corners of the discharge base 8 are provided with four spring elements 25 supported on the bottom plate 10 of the four-column hydraulic machine 7, and the discharge base 8 relies on the spring elements 25 to provide thrust for upward movement. An adjusting nut 27 is arranged on the outer cylinder of the spring element 25, and the height when the discharge base 8 moves upward and stops can be adjusted by the adjusting nut 27. The spring element 25 may be a compression spring or a gas spring.

Four push rods 35 are installed at the four corners of the slider 9 of the four-column hydraulic machine 7. When the slider 9 is pressed, the push rod 35 pushes the discharge base 8 downward, so that the first clamp on the discharge base 8 The sheet material in the frame 13 also moves downward until the sheet material closely adheres to the male mold 12 on the bottom plate 10 of the four-column hydraulic machine 7 in order to improve the molding quality. When the slider 9 moves up, the discharge base 8 is in four springs The element 25 moves upwards under the action of the element 25, and the molded housing held by the first clamping frame 13 on the discharge base 8 also moves upwards away from the male mold 12 to achieve the function of automatic demoulding.

A total of two first clamping frames 13 can be placed on the second slide rail 15 of the discharge base 8 and the first slide rail 14 and the third slide rail 23 of the slide rail seat 5 to reach one sheet in the hydroforming machine 2 While forming, another sheet can be continuously heated in the heating furnace 1, greatly improving the efficiency.

The first clamping frame 13, see FIGS. 3 and 4, includes an upper clamping arm 28, a lower clamping frame 29 and a bracket 30. The lower clamping frame 29 is fixed on the bracket 30, and the upper clamping arm 28 is installed on the bracket 30 by a rotating shaft. The upper clamping arm 28 is driven and opened and closed by the rotating shaft. When closing, the material sheet is clamped. The hook 26 is equipped with a clamping frame push-pull mechanism 34 in the hot press forming machine. The clamping frame push-pull mechanism 34 pushes the first clamping frame 13 to move through the hook 26. Specifically, the clamping frame push-pull mechanism 34 is installed on the fourth linear guide rail 36, and the fourth transmission mechanism 37 is driven by a motor to drive the clamping frame push-pull mechanism 34 to move left and right on the fourth linear guide rail 36. The fourth transmission mechanism 37 is a ball screw transmission mechanism or a rack and pinion transmission mechanism.

Both the upper clamping arm 28 and the lower clamping frame 29 of the first clamping frame 13 can be telescopically adjusted in size to adapt to clamping of sheets of different sizes.

This creation combines the heating furnace 1 and the hydraulic forming machine 2 as a whole device, with a discharge base 8 and a first clamping frame 13, the heating furnace 1 uses a far-infrared radiation heater 22 as a heating element, which can be matched with the control system , Automatically move the plastic composite sheet to be formed into the heating furnace 1 for heating, and then automatically move into the hydraulic forming machine 2 to automatically start the female mold 11 and the male mold 12 to close the mold and complete the molding of the sheet. The hydraulic press 7, the discharge base 8 and the first clamping frame 13 act in conjunction, and the molded shell is automatically released from the mold. This creation is also suitable for hot pressing of plastic sheets.

Example 2

For a three-station hot press forming machine, see Figure 5. The main structure, principle, and efficacy of this embodiment are the same as those in Embodiment 1, and are not repeated here. The difference is that, compared with Embodiment 1, this implementation For example, a loading table 33 is added on the left side of the heating furnace 1 as shown in Fig. 5, and the loading table 33, the heating furnace 1, and the hydraulic forming machine 2 are arranged in a row. Specifically, the loading table 33 is provided with a pair of fourth slide rails 31, and the second clamping frame 32 is mounted on the fourth slide rails 31. Put the sheet to be formed into the second clamping frame 32 on the fourth slide rail 31, and clamp it on the second clamping frame 32 and move it into the heating furnace 1, the first clamping material on the hydraulic molding machine 2 The frame 13 moves into the lower third slide rail 23 of the slide rail seat 5, the heated and softened sheet moves out of the hydraulic molding machine 2 along with the second clamping frame 32, the female mold 11 and the male mold 12 are pressed, and after cooling and setting Complete the molding of the shell.

This embodiment is more conveniently applied to an automatic assembly line, and in particular can cooperate with a loading manipulator and a unloading manipulator to form a fully automatic unmanned hot press molding machine.

The above content is only the preferred embodiment of this creation. For those of ordinary knowledge in the field, according to the idea of this creation, there will be changes in the specific implementation and scope of application. The content of this specification should not be interpreted as a limits.

1: heating furnace 2:Hydraulic forming machine 3: Upper heating plate 4: Lower heating plate 5: Slide rail seat 6: rack 7: Four-column hydraulic press 8: Unloading base 9: Slider 10: bottom plate 11: Female 12: positive model 13: The first clamping frame 14: the first slide 15: Second rail 16: First linear guide 17: The first transmission mechanism 18: Second linear guide 19: Second transmission mechanism 20: Third linear guide 21: Third transmission mechanism 22: Far infrared radiation heating element 23: Third rail 24: Guide post 25: spring element 26: hook 27: Adjusting nut 28: Upper clamp arm 29: Lower clip frame 30: Bracket 31: Fourth rail 32: Second clamping frame 33: loading table 34: Push-pull mechanism of clamping frame 35: putter 36: Fourth linear guide 37: Fourth transmission mechanism

Figure 1 is a three-dimensional schematic diagram of the first embodiment of the creation; Figure 2 is a schematic diagram of the arrangement of the third linear guide rail in the first embodiment of the creation; Figure 3 is a schematic diagram of the structure of the clamping frame of the first embodiment of the creation; Figure 4 is a bottom view of the clamping frame structure of the first embodiment of the creation; FIG. 5 is a three-dimensional schematic diagram of the second embodiment of the creation.

1: heating furnace

2:Hydraulic forming machine

3: Upper heating plate

4: Lower heating plate

5: Slide rail seat

6: rack

7: Four-column hydraulic press

8: Unloading base

9: Slider

10: bottom plate

11: Female

12: positive model

13: The first clamping frame

14: the first slide

15: Second rail

16: First linear guide

17: The first transmission mechanism

18: Second linear guide

19: Second transmission mechanism

22: Far infrared radiation heating element

23: Third rail

24: Guide post

25: spring element

27: Adjusting nut

34: Push-pull mechanism of clamping frame

35: putter

Claims (10)

A hot press forming machine includes a heating furnace and a hydraulic forming machine arranged side by side, the heating furnace is composed of an upper heating plate, a lower heating plate, a slide rail seat and a frame, the upper heating plate and the lower The heating plate and the slide rail seat are fixed on the frame in a movable manner up and down. The hydraulic forming machine includes a four-column hydraulic machine and a discharge base. A slider and a bottom plate of the four-column hydraulic machine are respectively installed There is a female mold and a male mold, the discharge base is mounted on the four guide columns of the four-column hydraulic machine and is located between the slider and the bottom plate of the four-column hydraulic machine, on the slide rail seat of the heating furnace and the The discharge base of the hydraulic forming machine is equipped with a slide rail, a clamping frame that can be moved on the slide rail is provided on the slide rail, the slide rail and the discharge base on the slide rail seat When the slide rails of the seat are docked, the clamping frame can move between the hydraulic forming machine and the heating furnace. The hot press forming machine according to claim 1, wherein: the upper heating plate, the lower heating plate and the slide rail seat are respectively fixed on the frame of the heating furnace by a cantilever structure movable up and down. The hot press forming machine according to claim 2, wherein: the cantilever structure movable up and down includes a linear guide rail and a transmission mechanism, the upper heating plate is installed on a first linear guide rail, and a first transmission mechanism is driven by a motor The upper heating plate is driven to move up and down on the first linear guide rail, the lower heating plate is installed on a second linear guide rail, and a second transmission mechanism is driven by a motor to drive the lower heating plate to do on the second linear guide rail Moving up and down, the slide rail seat is installed on a third linear guide rail, and a third transmission mechanism is driven by a motor to drive the slide rail seat to move up and down on the third linear guide rail. The hot press forming machine according to claim 1, wherein: the upper heating plate and the lower heating plate are assembled by a plurality of far-infrared radiation heating elements, and each piece of the far-infrared radiation heating element can be individually temperature controlled. The hot press forming machine according to claim 1, wherein: the slide rail seat is provided with upper and lower double layers of the slide rail, and the three of the discharge base and the slide rail seat are placed on the slide rail in total There are two such clamping frames. The hot press forming machine according to claim 1, wherein: the discharge base is provided with four guide holes, which are installed in sliding cooperation with the four guide columns of the four-column hydraulic machine, and the discharge base can be moved along the four The guide column moves up and down; the four corners of the discharge base are provided with four spring elements supported on the bottom plate of the four-column hydraulic machine, and the discharge base relies on the spring element to provide thrust for upward movement; The adjusting nut can be used to adjust the height of the discharge base when it stops moving upward. The hot press forming machine according to claim 6, wherein four push rods are installed at four corners of the slider of the four-column hydraulic press. The hot press forming machine according to claim 1, wherein the clamping frame includes an upper clamping arm, a lower clamping frame and a bracket, the lower clamping frame is fixed on the bracket, and the upper clamping arm is mounted on the rotating shaft On the bracket, the upper clamping arm is opened and closed by driving the rotating shaft, and the material sheet is clamped when closed. The bracket is provided with a hook, and a clamping frame push-pull mechanism is installed in the hot compression molding machine. The frame push-pull mechanism pushes the clamping frame to move by the hook. The hot press forming machine according to claim 8, wherein: the clamping frame push-pull mechanism is installed on a fourth linear guide rail, and a fourth transmission mechanism is driven by a motor to drive the clamping frame push-pull mechanism on the fourth straight line Move left and right on the rail. The hot press forming machine according to claim 1, wherein: a loading table is further added on the side of the heating furnace, the loading table, the heating furnace and the hydraulic forming machine are arranged in a row, and the loading table is provided There is a pair of slide rails, and the clamping frame can be moved on the slide rails.

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