Blister device for facilitating cooling and shaping

Abstract

The application discloses a blister packaging device convenient for cooling and shaping, and relates to the technical field of the blister packaging device, which comprises a device body, a clamping mechanism and a cooling mechanism. The cooling mechanism comprises a gas conveying pipe and a fixing frame. A three-way pipe is arranged on the gas inlet end of the gas conveying pipe. Two ports of the three-way pipe, which are away from the gas conveying pipe, are connected with a vacuum pump and a fan respectively. A plurality of air holes are formed in the top of the gas conveying pipe. The fixing frame is arranged on the top of the gas conveying pipe. A condenser pipe is inserted into the inner side of the fixing frame. Two ports of the condenser pipe are provided with a circulating water tank. The three-way pipe is connected with the vacuum pump. Vacuumization operation can be conducted on the inside of the blister packaging groove through the gas conveying pipe and the air holes, so that softened plate material is formed by blister packaging. The plate material in the blister packaging groove can be cooled through the condenser pipe. Meanwhile, the fan is connected with the three-way pipe. Cold air can be blown into the inside of the blister packaging groove through the gas conveying pipe and the air holes. Therefore, the efficiency of the blister packaging of the processed piece can be improved.

Description

Technical Field

[0001] This invention relates to the field of thermoforming equipment technology, and more specifically to a thermoforming equipment that facilitates cooling and shaping. Background Technology

[0002] Vacuum forming equipment (also known as vacuum forming machine or thermoforming machine) is an industrial equipment that uses the principle of vacuum adsorption to adsorb heated and softened thermoplastic sheets onto the surface of a mold for cooling and shaping, thereby manufacturing various plastic packaging or structural parts.

[0003] A continuously cooling thermoforming mold, authorized by publication number CN109955464A, is designed with an internal cooling device installed in a cylindrical mold cylinder. This device is connected to the external structure via a special structure, through which a cooling medium is introduced. After forming on the mold cylinder, rapid heat exchange occurs, and the heat is then carried away through thermoforming pipes, thus achieving the effect of cooling the mold cylinder and stabilizing the mold surface temperature. This continuous cooling mold production process allows sheet material to be directly thermoformed and cooled after extrusion, shortening intermediate sheet material turnover and reducing the large investment in downstream equipment, greatly contributing to cost reduction and production complexity reduction.

[0004] The existing technology has the following shortcomings: During the operation of existing vacuum forming equipment, water cooling or air cooling is usually used to cool and lower the temperature of the vacuum-formed sheet, which makes it impossible for the vacuum-formed sheet to cool and solidify quickly, and also makes it impossible to quickly remove the formed sheet from the mold, which affects the efficiency of sheet vacuum forming. Summary of the Invention

[0005] The purpose of this invention is to provide a vacuum forming device that facilitates cooling and shaping. By connecting a T-junction to a vacuum pump, a vacuum operation can be performed inside the vacuum forming tank through an air supply pipe and air vents, allowing the softened sheet material to be vacuum-formed. A condenser pipe can cool the sheet material inside the vacuum forming tank. Simultaneously, by connecting a fan to the T-junction, cold air can be blown inside the vacuum forming tank through an air supply pipe and air vents, thereby improving the efficiency of vacuum forming of processed parts and solving the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thermoforming device for easy cooling and shaping, comprising a device body, and further comprising: A clamping mechanism located on the inner side of the top of the device body and a cooling mechanism located on the inner side of the bottom of the device body; The clamping mechanism includes a fixed frame, a fixed groove is provided on the inner side of the fixed frame, and hydraulic cylinders are fixedly installed at both ends of the top of the fixed frame. Pressure plates are fixedly installed at the bottom of the piston rods of the two hydraulic cylinders. The cooling mechanism includes an air supply pipe and a fixing frame. The air supply pipe is located on the inner side of the bottom of the device body. A T-junction is fixedly installed at the air inlet end of the air supply pipe. The two ports of the T-junction away from the air supply pipe are respectively connected to a vacuum pump and a fan. Multiple air holes are opened at the top of the air supply pipe. The fixing frame is located at the top of the air supply pipe. A condenser pipe is arranged inside the fixing frame. A circulating water tank is fixedly installed at the two ports of the condenser pipe.

[0007] Preferably, the device body includes a vacuum forming template, the top of the vacuum forming template has a vacuum forming groove, the bottom of the vacuum forming groove has multiple through holes, and two guide rods are fixedly installed on the bottom of the outer walls at both ends of the vacuum forming template. A heating plate is slidably sleeved on the outer side of the top of the four guide rods.

[0008] Preferably, two movable seats are fixedly installed on the outer walls of both ends of the fixed frame, and the four movable seats are slidably sleeved on the outside of the four guide rods. The fixed frame is set at the bottom of the heating plate, and two telescopic members are fixedly installed on the top of both sides of the inner wall of the fixed groove. The bottom of the four telescopic members is fixedly connected to the top of both sides of the pressure plate.

[0009] Preferably, the air supply pipe is located at the bottom inner side of the blister template, the tee is located at the top of the outer wall of one end of the blister template, and valves are provided at the two ends of the tee away from the air supply pipe. Two mounting holes are provided on the inner walls of both ends of the blister template.

[0010] Preferably, each end of the fixing frame has two fixing holes, and a mounting bolt is threaded into the inner wall of the fixing hole. The outer wall of the mounting bolt away from the fixing hole is threaded to the inner wall of the adjacent mounting hole.

[0011] Preferably, the circulating water tank is fixedly installed on one side of the outer wall of the vacuum forming template, and the condenser pipe is located at the bottom of the vacuum forming tank.

[0012] Preferably, the cross-sectional area of ​​the inner side of the fixed frame is the same as the cross-sectional area of ​​the inner wall of the vacuum forming groove, and the cross-sectional area of ​​the outer side of the fixed frame is the same as the cross-sectional area of ​​the outer wall of the vacuum forming template.

[0013] The technical effects and advantages provided by the present invention in the above technical solution are as follows: By connecting the T-junction to the vacuum pump, and through the air supply pipe, air vents, and the through-hole at the bottom of the vacuum forming tank, a vacuum operation can be easily performed inside the vacuum forming tank. This allows the softened sheet material to be easily vacuum-formed inside the tank. After vacuum forming, the condenser pipe can cool the formed sheet material inside the vacuum forming tank. At the same time, by connecting the fan to the T-junction, cold air can be delivered into the vacuum forming tank through the air supply pipe and air vents to further cool the formed sheet material. Additionally, the upward blowing of cold air can separate the formed sheet material from the inner wall of the vacuum forming tank, making it easier for workers to demold it and thus improving the efficiency of sheet material vacuum forming. The sheet material can be placed and fixed through the fixing groove on the inner wall of the fixed frame. Then, two hydraulic cylinders extend synchronously, which can drive the pressure plate to move downward along the inner wall of the fixing groove. At the same time, the telescopic component can pull and limit the movement of the pressure plate, so that the pressure plate can stably press and limit the sheet material, thus keeping the sheet material stable during the heating and softening process. Meanwhile, the fixed frame moves downward along the outer wall of the four guide rods through four movable seats, which can evenly lay the softened sheet material into the vacuum forming groove at the top of the vacuum forming template, which can prevent the softened sheet material from shifting during the vacuum forming process. This allows the vacuum forming device to stably form the sheet material, ensuring the quality of the vacuum forming. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a partial cross-sectional view of the structure of the present invention.

[0017] Figure 3 For the present invention Figure 2 Enlarged view of part A in the image.

[0018] Figure 4 This is an exploded view of the device body of the present invention.

[0019] Figure 5 This is an exploded view of the clamping mechanism of the present invention.

[0020] Figure 6 This is an exploded view of the cooling mechanism of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Device body; 101. Vacuum forming template; 102. Vacuum forming trough; 103. Guide rod; 104. Heating plate; 105. Mounting hole; 2. Clamping mechanism; 201. Fixed frame; 202. Movable seat; 203. Fixed groove; 204. Hydraulic cylinder; 205. Pressure plate; 206. Telescopic component; 3. Cooling mechanism; 301. Tee; 302. Gas supply pipe; 303. Air vent; 304. Fixing bracket; 305. Condenser pipe; 306. Circulating water tank; 307. Fixing hole; 308. Mounting bolt. Detailed Implementation

[0022] This invention provides, for example Figure 1 The illustrated thermoforming device, which facilitates cooling and shaping, includes a device body 1 and further includes: The clamping mechanism 2, located on the inner top of the device body 1, and the cooling mechanism 3, located on the inner bottom of the device body 1, can clamp and fix the sheet material to keep it stable during the heating and softening process. At the same time, the cooling mechanism 3 can perform a vacuuming operation on the gap between the sheet material and the device body 1 and can cool the sheet material after vacuum forming, thereby improving the efficiency of sheet material vacuum forming.

[0023] To ensure the stability of the board material during the heating and softening process, such as Figure 1-3 and Figure 5 As shown, the clamping mechanism 2 includes a fixed frame 201, with a fixed groove 203 on the inner side of the fixed frame 201. Hydraulic cylinders 204 are fixedly installed at both ends of the top of the fixed frame 201. Pressure plates 205 are fixedly installed at the bottom of the piston rods of the two hydraulic cylinders 204. The plate can be placed and fixed through the fixed groove 203. Then, by extending the two hydraulic cylinders 204, the pressure plate 205 can be moved downward along the inner wall of the fixed groove 203, so that it can press and limit the plate around the edges, so that the plate remains stable during the heating and softening process, thereby ensuring the quality of the plate vacuum forming.

[0024] To allow the vacuum-formed sheets to cool quickly, such as Figure 1-2 and Figure 6As shown, the cooling mechanism 3 includes a gas supply pipe 302 and a fixing frame 304. The gas supply pipe 302 is located on the inner side of the bottom of the device body 1. A tee 301 is fixedly installed at the gas inlet end of the gas supply pipe 302. The two ends of the tee 301 away from the gas supply pipe 302 are connected to a vacuum pump and a fan, respectively. Multiple air holes 303 are opened at the top of the gas supply pipe 302. The fixing frame 304 is located at the top of the gas supply pipe 302. A condenser pipe 305 is arranged inside the fixing frame 304. A circulating water tank 306 is fixedly installed at the two ends of the condenser pipe 305. Through the connection of the vacuum pump and the tee 301, and through the gas supply pipe 302 and the air holes 303, the cooling mechanism 3 can be conveniently cooled. A vacuum process is performed inside the mold groove to vacuum-form the sheet material. The formed sheet material is then easily cooled by the circulating water tank 306 and the condenser pipe 305. The circulating water tank 306 is equipped with a semiconductor cooler to cool the circulating cooling water. At the same time, the vacuum pump is turned off and the fan is turned on, allowing cold air to pass through the tee 301 and the air supply pipe 302 and be discharged through the air hole 303. The cold air is sprayed upwards, which can further cool the vacuum-formed sheet material and separate it from the inner wall of the mold groove for easy demolding, thereby improving the efficiency of sheet material vacuum forming.

[0025] To facilitate the vacuum forming process of sheet materials, such as Figure 1-2 and Figure 4 As shown, the device body 1 includes a vacuum forming template 101. The top of the vacuum forming template 101 is provided with a vacuum forming groove 102, and the bottom of the vacuum forming groove 102 is provided with multiple through holes. Two guide rods 103 are fixedly installed on the bottom of the outer walls at both ends of the vacuum forming template 101. Heating plates 104 are slidably sleeved on the outer side of the top of the four guide rods 103. The heating plates 104 can heat and soften the board material fixed by the clamping mechanism 2. Then the clamping mechanism 2 moves downward along the guide rods 103 so that the softened board material can be laid into the vacuum forming groove 102. By vacuuming the inside of the vacuum forming groove 102, the board material can be easily vacuum formed.

[0026] In order to ensure that the clamping mechanism 2 stably clamps and fixes the plate, such as Figure 2-5As shown, two movable seats 202 are fixedly installed on the outer walls of both ends of the fixed frame 201. The four movable seats 202 are slidably sleeved on the outer sides of the four guide rods 103. The fixed frame 201 is set at the bottom of the heating plate 104. Two telescopic components 206 are fixedly installed on the top of both sides of the inner wall of the fixed groove 203. The bottoms of the four telescopic components 206 are fixedly connected to the top of both sides of the pressure plate 205. The top-view cross-sectional area of ​​the inner side of the fixed frame 201 is the same as the top-view cross-sectional area of ​​the inner wall of the vacuum forming groove 102. The top-view cross-sectional area of ​​the outer side of the fixed frame 201 is... The volume size is the same as the cross-sectional area of ​​the outer wall of the vacuum forming template 101 when viewed from above. The sheet is placed at the bottom of the inner wall of the fixing groove 203, and then the pressure plate 205 moves downward along the inner wall of the fixing groove 203 by extending through two hydraulic cylinders 204. At the same time, four telescopic members 206 can pull and limit the pressure plate 205. The telescopic members 206 include a damper and a spring sleeved on the outside of the damper. The fixing frame 201 moves downward along the outer wall of the four guide rods 103 through the movable seat 202, so that the heated and softened sheet can be laid into the vacuum forming groove 102.

[0027] In order to stably cool and shape the sheet material inside the thermoforming tank 102, such as Figure 2 , Figure 4 and Figure 6 As shown, the gas supply pipe 302 is located at the bottom inner side of the vacuum forming template 101, and the tee 301 is located at the top of the outer wall of one end of the vacuum forming template 101. Valves are installed at the two ends of the tee 301 furthest from the gas supply pipe 302. Two mounting holes 105 are opened on the inner walls of both ends of the vacuum forming template 101, and two fixing holes 307 are opened on both ends of the fixing bracket 304. Mounting bolts 308 are threaded into the inner walls of the fixing holes 307. The outer wall of the mounting bolt 308 furthest from the fixing hole 307 is threaded to the inner wall of the adjacent mounting hole 105. The circulating water tank 306 is fixedly installed on the vacuum forming template 101. On one side of the outer wall, the condenser pipe 305 is located at the bottom of the blister pack 102. The two ports of the tee 301 away from the gas delivery pipe 302 are connected to the vacuum pump and the air cooler respectively. By adjusting the valves inside the two ports of the tee 301, the working status of the vacuum pump and the air cooler can be adjusted respectively, so as to conveniently adjust between the two working states of vacuuming operation and cold air delivery operation. At the same time, the condenser pipe 305 can be conveniently installed and replaced by the mounting bolt 308 passing through the mounting hole 105 and threadedly connected to the inner wall of the adjacent fixing hole 307.

[0028] During the vacuum forming process, the sheet material is placed at the bottom of the inner wall of the fixing groove 203. Then, the PLC controller extends two hydraulic cylinders 204, causing the pressure plate 205 to move downwards along the inner wall of the fixing groove 203. Simultaneously, four telescopic components 206 can pull and limit the movement of the pressure plate 205, ensuring stable pressing and restraint of the sheet material. This maintains stability during the heating and softening process. Then, the PLC controller activates the heating plate 104 to heat and soften the sheet material. After softening, the fixed frame 201 moves downward along the four guide rods 103 via the movable seat 202 through the PLC controller, so that the softened sheet can be laid into the vacuum forming tank 102. Then, the valve connected to the vacuum pump via the three-way valve 301 is opened through the PLC controller. Through the operation of the vacuum pump, the air between the sheet and the vacuum forming tank 102 can be evacuated through the air supply pipe 302, the air hole 303 and the through hole at the bottom of the inner wall of the vacuum forming tank 102, so that the sheet can be vacuum formed inside the vacuum forming tank 102. After the vacuum forming is completed, the PLC controller causes the condensate inside the circulating water tank 306 to circulate through the condenser pipe 305, which can cool the sheet material inside the vacuum forming tank 102. At the same time, the semiconductor cooler inside the circulating water tank 306 can cool the condensate after heat exchange. Meanwhile, the valve between the three-way valve 301 and the vacuum pump is closed, and the valve between the three-way valve 301 and the air cooler is opened. The PLC controller enables the air cooler to work, and the cold air is delivered through the air pipe 302, so that the cold air can be sprayed upward through the air hole 303, which can further cool the bottom of the vacuum forming tank 102. At the same time, the formed sheet material can be separated from the inner wall of the vacuum forming tank 102, which can facilitate the demolding process of the formed sheet material and improve the efficiency of sheet material vacuum forming. Simultaneously, by loosening the mounting bolts 308 to separate them from the fixing holes 307 and 105, the fixing frame 304 is separated from the inner wall of the vacuum forming template 101. Thus, when the condenser pipe 305 is damaged, the staff can easily install and replace it, allowing the cooling mechanism 3 to be stably used for cooling the sheet material during vacuum forming, thereby improving the efficiency of sheet material vacuum forming. This embodiment specifically solves the problem in the prior art that it is impossible to quickly cool and demold the vacuum-formed sheet material.

[0029] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A thermoforming device for easy cooling and shaping, comprising a device body (1), characterized in that, Also includes: The clamping mechanism (2) is located on the inner side of the top of the device body (1) and the cooling mechanism (3) is located on the inner side of the bottom of the device body (1). The clamping mechanism (2) includes a fixed frame (201), a fixed groove (203) is provided on the inner side of the fixed frame (201), and hydraulic cylinders (204) are fixedly installed at both ends of the top of the fixed frame (201). Pressure plates (205) are fixedly installed at the bottom of the piston rods of the two hydraulic cylinders (204). The cooling mechanism (3) includes a gas supply pipe (302) and a fixing frame (304). The gas supply pipe (302) is located on the inner side of the bottom of the device body (1). A tee (301) is fixedly installed at the gas inlet end of the gas supply pipe (302). The two ports of the tee (301) away from the gas supply pipe (302) are respectively connected to a vacuum pump and a fan. Multiple air holes (303) are opened at the top of the gas supply pipe (302). The fixing frame (304) is located at the top of the gas supply pipe (302). A condenser pipe (305) is provided on the inner side of the fixing frame (304). A circulating water tank (306) is fixedly installed at the two ports of the condenser pipe (305).

2. The thermoforming device for easy cooling and shaping according to claim 1, characterized in that: The device body (1) includes a vacuum forming template (101), a vacuum forming groove (102) is provided on the top of the vacuum forming template (101), and multiple through holes are provided at the bottom of the vacuum forming groove (102). Two guide rods (103) are fixedly installed on the bottom of the outer walls at both ends of the vacuum forming template (101), and a heating plate (104) is slidably sleeved on the outer side of the top of the four guide rods (103).

3. The thermoforming device for easy cooling and shaping according to claim 2, characterized in that: Two movable seats (202) are fixedly installed on the outer walls of both ends of the fixed frame (201). The four movable seats (202) are slidably sleeved on the outside of the four guide rods (103). The fixed frame (201) is set at the bottom of the heating plate (104). Two telescopic parts (206) are fixedly installed on the top of both sides of the inner wall of the fixed groove (203). The bottom of the four telescopic parts (206) is fixedly connected to the top of both sides of the pressure plate (205).

4. The thermoforming device for easy cooling and shaping according to claim 2, characterized in that: The gas supply pipe (302) is located at the bottom inside of the blister template (101), and the tee (301) is located at the top of the outer wall of one end of the blister template (101). Valves are provided at the two ends of the tee (301) away from the gas supply pipe (302). Two mounting holes (105) are opened on the inner walls of both ends of the blister template (101).

5. The thermoforming device for easy cooling and shaping according to claim 4, characterized in that: The fixing bracket (304) has two fixing holes (307) at both ends. The inner wall of the fixing hole (307) is threaded with a mounting bolt (308). The outer wall of the mounting bolt (308) away from the fixing hole (307) is threaded to the inner wall of the adjacent mounting hole (105).

6. The thermoforming device for easy cooling and shaping according to claim 2, characterized in that: The circulating water tank (306) is fixedly installed on one side of the outer wall of the thermoforming template (101), and the condenser pipe (305) is set at the bottom of the thermoforming tank (102).

7. The thermoforming device for easy cooling and shaping according to claim 2, characterized in that: The top-view cross-sectional area of ​​the inner side of the fixed frame (201) is the same as the top-view cross-sectional area of ​​the inner wall of the vacuum forming groove (102), and the top-view cross-sectional area of ​​the outer side of the fixed frame (201) is the same as the top-view cross-sectional area of ​​the outer wall of the vacuum forming template (101).

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