Glass fiber shell hot-pressing forming machine

Abstract

The utility model provides a glass fiber shell hot-pressing forming machine. The glass fiber shell hot-pressing forming machine is characterized by comprising a forming mold with an upper mold plate and a lower mold plate, the rack is provided with a first supporting position for a hot press molding process and a second supporting position for a material taking and placing process; the mold opening device corresponds to the second supporting position and comprises an upward moving device and a downward moving device, and the upward moving device comprises a mounting plate, a first lifting mechanism, an upper cooling plate and an upper clamping jaw used for lifting the upper mold plate; the downward moving device comprises a lower cooling plate, a lower clamping jaw used for jacking the lower die plate and a second lifting mechanism. When the mold is opened, the upper clamping jaw lifts the upper mold plate, so that a clearance space is formed between the upper mold plate and the upper cooling plate, and the lower clamping jaw jacks the lower mold plate, so that a clearance space is formed between the lower mold plate and the lower cooling plate. In the mold opening process, the cooling plate can be prevented from continuously cooling the forming mold, and the forming mold can be heated to the hot pressing temperature more quickly in the next hot pressing forming period, so that the forming period is shortened, and the energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic product glass fiber shell hot press forming equipment technical field. BACKGROUND

[0002] Because glass fiber plate has the advantages of light weight but high strength, excellent electromagnetic performance, environmental protection, easy processing and the like, is used as back shell in more and more mobile phones and other electronic products. The glass fiber plate used as back shell is in the hot press forming process, temperature control is the key factor influencing product quality and forming efficiency. When the hot press equipment continuously produces, the glass fiber plate needs to be kept under certain pressure to gradually cool after completing hot pressing in the forming die, so as to avoid generating internal stress. The existing hot press equipment usually sets the station for taking and placing material, and the forming die after completing hot pressing is gradually cooled by the upper and lower adhered water-cooled plate at the station, and the product is taken out after being cooled to the set mold opening temperature, and the glass fiber plate blank is placed into the next hot press forming cycle, and then the forming die is heated to the set hot press temperature again. But the cooling plate will continue to cool the forming die in the process of taking out the product and placing the glass fiber plate blank, which will cause the forming die to be low in temperature, and the time of heating to the set hot press temperature when hot press forming is carried out is long, which not only reduces the production efficiency, but also has high energy consumption. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a glass fiber shell hot press forming machine capable of improving production efficiency and reducing energy consumption.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that

[0005] A glass fiber shell hot press forming machine for hot press forming glass fiber plate into electronic product shell, comprising

[0006] The forming die comprises an upper die plate and a lower die plate.

[0007] The machine frame is provided with a first support position corresponding to the hot press forming process, a second support position corresponding to the taking and placing material process, and a mechanical hand device for step-by-step transmission of the forming die between the first support position and the second support position.

[0008] The mold opening device for keeping pressure and opening and closing the forming mold comprises an upward moving device arranged above the second support position and a downward moving device arranged below the second support position; the upward moving device comprises a horizontally arranged mounting plate, a first lifting mechanism for driving the mounting plate to lift, an upper cooling plate fixedly mounted at the bottom of the mounting plate for cooling the upper mold plate, and two groups of upper clamping jaws arranged at both sides of the mounting plate for lifting the upper mold plate; the downward moving device comprises a lower cooling plate fixedly arranged on the second support position for supporting and cooling the lower mold plate, two groups of lower clamping jaws arranged at both sides for clamping and jacking up the lower mold plate, and a second lifting mechanism for driving the two groups of lower clamping jaws to lift; when the mold is opened, the upper clamping jaws lift the upper mold plate so that a gap space is formed between the top surface of the upper mold plate and the upper cooling plate, and the lower clamping jaws lift the lower mold plate so that a gap space is formed between the bottom surface of the lower mold plate and the lower cooling plate.

[0009] In a preferred solution, the upper mold plate is provided with first step portions at both sides for cooperating with the upper clamping jaws, and the lower mold plate is provided with second step portions at both sides for cooperating with the lower clamping jaws.

[0010] In a preferred solution, the upper clamping jaws comprise first pneumatic linear mechanisms arranged horizontally, and L-shaped arms driven by the first pneumatic linear mechanisms and extending vertically downward from the sides of the mounting plate.

[0011] In a preferred solution, the lower clamping jaws comprise second pneumatic linear mechanisms arranged horizontally, and F-shaped arms driven by the second pneumatic linear mechanisms and extending vertically upward from the sides of the lower cooling plate.

[0012] In a preferred solution, the rack is further provided with a third support position corresponding to a material taking and placing process, the third support position is arranged linearly with the second support position on both sides of the first support position, and the third support position is correspondingly provided with the mold opening device; the mechanical arm device reciprocally transfers the two groups of forming molds between the three support positions.

[0013] In a preferred solution, the mechanical arm device comprises a gear and rack transmission mechanism arranged along the arrangement direction of each support position, and a plurality of spacer arranged push plates for pushing the forming mold vertically mounted on the gear and rack transmission mechanism.

[0014] A preferred scheme, corresponding to the first support position is arranged with hot pressing device, the hot pressing device includes the sealing bottom plate arranged below the forming die, the lower heating plate arranged between the sealing bottom plate and the lower die plate, the upper heating plate arranged above the upper die plate, the servo oil pressure mechanism driving the upper heating plate to lift, and the vacuum sealing cover covering the outside of the upper heating plate and lifting with the upper heating plate, the vacuum sealing cover forms the vacuumizable sealed cavity with the sealing bottom plate after descending.

[0015] The beneficial effect of the utility model lies in: when the forming die is cooled to the set temperature and the mold is opened at the second support position, the upper clamp jaw lifts the upper die plate, a gap space is formed between the lifted upper die plate and the upper cooling plate, and the lower clamp jaw synchronously lifts the lower die plate, so that a gap space is formed between the bottom surface of the lower die plate and the lower cooling plate, which can avoid the upper cooling plate and the lower cooling plate continuing to cool the forming die, so that the forming die can be heated to the set hot pressing temperature more quickly when entering the next hot pressing forming cycle, which not only shortens the forming cycle and improves the production efficiency, but also obviously reduces the heat loss of the forming die and saves energy in the production process. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0017] Figure 1 It is the main structure schematic diagram of hot pressing forming machine in example;

[0018] Figure 2 It is the structure schematic diagram of forming die in example;

[0019] Figure 3 It is the structure schematic diagram of upper moving device in example;

[0020] Figure 4 It is the installation structure schematic diagram of lower moving device in example;

[0021] Figure 5 It is the structure schematic diagram of mechanical hand device in example;

[0022] Figure 6 It is the structure schematic diagram of hot pressing device in example. PREFERRED EMBODIMENT

[0023] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0024] It should be noted that the words indicating the direction in the application file, such as back, inside, outside, etc., are only for the convenience of more intuitive description of the structure in combination with the drawings, and are not a limitation on the product structure.

[0025] Reference Figures 1 to 6 The glass fiber shell hot press forming machine of the embodiment is used for hot press forming of a glass fiber plate into an electronic product shell, and comprises

[0026] The forming die 1 comprises an upper die plate 11 and a lower die plate 12.

[0027] The machine frame 2 is provided with a first support position 21 corresponding to the hot press forming process, a second support position 22 corresponding to the material taking and placing process, and a mechanical hand device 3 for step-by-step transmission of the forming die 1 between the first support position 21 and the second support position 22.

[0028] The opening and closing device for the forming die comprises an upper moving device arranged above the second support position and a lower moving device arranged below the second support position; the upper moving device comprises a mounting plate arranged horizontally, a first lifting mechanism for driving the mounting plate to lift, an upper cooling plate fixedly mounted at the bottom of the mounting plate for cooling the upper die plate, and two groups of upper clamping jaws arranged at both sides of the mounting plate for lifting the upper die plate; the lower moving device comprises a lower cooling plate fixed to the second support position for supporting and cooling the lower die plate, two groups of lower clamping jaws arranged at both sides for clamping and jacking up the lower die plate, and a second lifting mechanism for driving the two groups of lower clamping jaws to lift; when the die is opened, the upper clamping jaws lift the upper die plate so that a gap space is formed between the top surface of the upper die plate and the upper cooling plate, and the lower clamping jaws lift the lower die plate so that a gap space is formed between the bottom surface of the lower die plate and the lower cooling plate.

[0029] The opening and closing device for the forming die 1 comprises an upper moving device arranged above the second support position and a lower moving device arranged below the second support position; the upper moving device 41 comprises a mounting plate 411 arranged horizontally, a first lifting mechanism 412 for driving the mounting plate 411 to lift, an upper cooling plate 413 fixedly mounted at the bottom of the mounting plate 411 for cooling the upper die plate 11, and two groups of upper clamping jaws 414 arranged at both sides of the mounting plate 411 for lifting the upper die plate 11; the lower moving device 42 comprises a lower cooling plate 421 fixed to the second support position 22 for supporting and cooling the lower die plate 12, two groups of lower clamping jaws 422 arranged at both sides for clamping and jacking up the lower die plate 12, and a second lifting mechanism 423 for driving the two groups of lower clamping jaws 422 to lift; when the die is opened, the upper clamping jaws 414 lift the upper die plate 11 so that a gap space is formed between the top surface of the upper die plate 11 and the upper cooling plate 413, and the lower clamping jaws 422 lift the lower die plate 12 so that a gap space is formed between the bottom surface of the lower die plate 12 and the lower cooling plate 421.

[0030] In production, the forming mold 1 is opened by the mold opening device 4, the glass fiber plate blank is placed in the mold cavity, the forming mold 1 is closed, and the mechanical hand device 3 sends the forming mold 1 to the first supporting position 21 for hot pressing forming. After hot pressing, the forming mold 1 is sent back to the second supporting position 22 by the mechanical hand device 3, is pressed down by the upward moving device 41, and is pressure maintained. At the same time, the forming mold 1 is cooled by the upper cooling plate 413 and the lower cooling plate 421. When the temperature reaches the set temperature, the forming mold 1 is opened by the mold opening device 4, the product is taken out, and the glass fiber plate blank is placed to enter the next production cycle. When the forming mold 1 is opened after being pressure maintained and cooled to the set temperature at the second supporting position 22, the upper clamping jaw 414 lifts the upper mold plate 11, a gap space is formed between the lifted upper mold plate 11 and the upper cooling plate 413, the lower clamping jaw 422 synchronously lifts the lower mold plate 12, and a gap space is formed between the bottom surface of the lower mold plate 12 and the lower cooling plate 421. In this way, the upper cooling plate 413 and the lower cooling plate 421 can continue to cool the forming mold 1, so that the forming mold 1 can be heated to the set hot pressing temperature more quickly when entering the next hot pressing forming cycle. This not only shortens the forming cycle and improves the production efficiency, but also significantly reduces the heat loss of the forming mold 1 and saves energy in the production process.

[0031] In a preferred embodiment, the upper mold plate 11 of the embodiment is provided with first step portions 111 on both sides, which cooperate with the upper clamping jaw 414. The lower mold plate 12 is provided with second step portions 121 on both sides, which cooperate with the lower clamping jaw 422. In other embodiments, the upper clamping jaw 414 and the first step portions 111 can be provided in other structures that are convenient to lift, and the lower clamping jaw 422 and the second step portions 121 can be provided in other structures that are convenient to lift. For example, holes are provided on both sides of the upper mold plate 11 or the lower mold plate 12, and the upper clamping jaw 414 and the lower clamping jaw 422 are provided in the form of rods to be inserted into the holes to lift or lift the upper mold plate 11 or the lower mold plate 12.

[0032] In a preferred embodiment, the upper clamping jaw 414 of the embodiment includes a first pneumatic linear mechanism 4141 arranged horizontally, and an L-shaped arm 4142 driven by the first pneumatic linear mechanism 4141 and extending vertically downward from the side of the mounting plate 411. The L-shaped arms 4142 on both sides can lift the upper mold plate 11 through the first step portions 111 on both sides.

[0033] In a preferred embodiment, the lower clamping jaw 422 of the embodiment includes a second pneumatic linear mechanism 4221 arranged horizontally, and an F-shaped arm 4222 driven by the second pneumatic linear mechanism 4221 and extending vertically upward from the side of the lower cooling plate 421. The top of the F-shaped arm 4222 on both sides can be inserted into the second step portions 121 on both sides to lift the lower mold plate 12.

[0034] A third supporting position 23 corresponding to the loading and unloading process is arranged on the rack 2 of the embodiment, and the third supporting position 23 is arranged in a straight line with the second supporting position 22 on both sides of the first supporting position 21, and the third supporting position 23 is correspondingly provided with the mold opening device 4; the mechanical arm device 3 reciprocates two groups of the forming molds 1 between the three supporting positions. Since the pressure maintaining and cooling and the loading and unloading operation take a long time, the second supporting position 22 and the third supporting position 23 are both set as the loading and unloading positions, and the pressure maintaining and cooling and the loading and unloading are alternately performed, so that the production efficiency can be significantly improved.

[0035] A gear and rack transmission mechanism 31 arranged along the arrangement direction of each supporting position, and three spaced-apart push plates 32 for pushing the forming molds 1 vertically installed on the rack of the gear and rack transmission mechanism 31 are included in the mechanical arm device 3 of the embodiment. The rack of the gear and rack transmission mechanism 31 reciprocates, and two groups of the forming molds 1 can be reciprocated between the three supporting positions through the three push plates 32, so that the structure is simple and reliable.

[0036] A hot pressing device 5 corresponding to the first supporting position 21 is arranged in the embodiment, and the hot pressing device 5 includes a sealing bottom plate 51 arranged below the forming mold 1, a lower heating plate 52 arranged between the sealing bottom plate 51 and the lower mold plate 12, an upper heating plate arranged above the upper mold plate 11, a servo oil pressure mechanism 53 driving the upper heating plate to ascend and descend, and a vacuum sealing cover 54 covering the outside of the upper heating plate and ascending and descending with the upper heating plate, and the vacuum sealing cover 54 forms a sealable cavity after descending and the sealing bottom plate 51. When the mold is hot pressed, the sealable cavity is formed by the vacuum sealing cover 54 and the sealing bottom plate 51, and the sealable cavity is vacuumized, so that the air bubbles between the layers of the glass fiber plate blank can be avoided to affect the product quality.

[0037] The above description does not limit the technical range of the utility model in any way, and any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belong to the technical range of the utility model.

Claims

1. A fiberglass shell hot pressing molding machine, used for hot pressing fiberglass sheets into electronic product shells, characterized in that, include The forming mold includes an upper mold plate and a lower mold plate; The frame is provided with a first support position corresponding to the hot pressing process, a second support position corresponding to the material handling process, and a robotic arm device for stepping and transferring the molding die between the first support position and the second support position. The mold opening device, used for maintaining pressure and opening / closing the forming mold, includes an upward moving device arranged above the second support position and a downward moving device arranged below the second support position; the upward moving device includes a horizontally arranged mounting plate, a first lifting mechanism for driving the mounting plate to rise and fall, an upper cooling plate fixedly installed at the bottom of the mounting plate for cooling the upper template, and two sets of upper clamping jaws arranged on both sides of the mounting plate for lifting the upper template; the downward moving device includes a lower cooling plate fixed on the second support position for supporting and cooling the lower template, two sets of lower clamping jaws arranged on both sides for clamping and lifting the lower template, and a second lifting mechanism for driving the two sets of lower clamping jaws to rise and fall; When the mold is opened, the upper jaw lifts the upper template, creating a gap between the top surface of the upper template and the upper cooling plate, while the lower jaw lifts the lower template, creating a gap between the bottom surface of the lower template and the lower cooling plate.

2. The fiberglass shell hot pressing forming machine according to claim 1, characterized in that: The upper template has a first stepped portion on both sides that cooperates with the upper clamping jaw, while the lower template has a second stepped portion on both sides that cooperates with the lower clamping jaw.

3. The fiberglass shell hot pressing forming machine according to claim 2, characterized in that: The upper gripper includes a first pneumatic linear mechanism arranged horizontally, and an L-shaped arm driven by the first pneumatic linear mechanism and extending vertically downward from the side of the mounting plate.

4. The fiberglass shell hot pressing forming machine according to claim 2, characterized in that: The lower gripper includes a horizontally arranged second pneumatic linear mechanism and an F-shaped arm driven by the second pneumatic linear mechanism and extending vertically upward from the side of the lower cooling plate.

5. A glass fiber shell hot pressing forming machine according to claim 1, characterized in that: The frame is also provided with a third support position corresponding to the material handling process. The third support position and the second support position are arranged in a straight line on both sides of the first support position. The mold opening device is provided in the third support position. The robotic arm device reciprocates between the two sets of forming molds and the three support positions.

6. A glass fiber shell hot pressing forming machine according to claim 5, characterized in that: The robotic arm device includes a gear and rack transmission mechanism arranged along the direction of each support position, and a plurality of push plates arranged at intervals on the gear and rack transmission mechanism for pushing the forming mold.

7. A glass fiber shell hot pressing forming machine according to claim 1, characterized in that: A hot pressing device is arranged corresponding to the first support position. The hot pressing device includes a sealing base plate arranged below the forming mold, a lower heating plate arranged between the sealing base plate and the lower template, an upper heating plate arranged above the upper template, a servo hydraulic mechanism for driving the upper heating plate to rise and fall, and a vacuum sealing cover covering the upper heating plate and rising and falling with the upper heating plate. After the vacuum sealing cover descends, it forms a vacuum-sealed cavity with the sealing base plate.

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