Heating type plastic suction mold

Abstract

The utility model discloses a heating type plastic suction mold which comprises a base platform, a square opening is formed in the middle of the base platform, a lower mold base is fixedly connected in the square opening, a push plate is slidably connected in the lower mold base, a plurality of diffusion spray heads are fixedly arranged on the push plate in a rectangular array mode, and each diffusion spray head is in a hopper shape with the wide upper portion and the narrow lower portion. The bottom of the diffusion nozzle communicates with a gas pipe. According to the utility model, the diffusion nozzles are arranged in a rectangular array, so that hot air can be ensured to be uniformly distributed on the surface of a plastic material during heating, the problem of non-uniform heating is avoided, the hot air is effectively utilized, the energy loss is reduced, and the heating efficiency is improved; through the arrangement of the air delivery pipe and the diffusion spray head, after plastic uptake work is completed, redundant parts in the lower mold base are extracted out through cooperation of the parts, cooling of plastic materials is accelerated, the forming quality and stability of the plastic materials are improved, the rejection rate is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold equipment, and in particular to a heated vacuum forming mold. Background Technology

[0002] Vacuum forming molds are used in vacuum forming production to shape heated hard plastic sheets into various products through vacuum adsorption. Heated vacuum forming molds are a type of mold specifically designed for vacuum forming. They soften the plastic sheet by heating it, and then use negative pressure to adhere it to the mold to form the desired product shape.

[0003] Existing heated vacuum forming molds typically fail to distribute heat evenly onto the plastic material, resulting in uneven heating. Furthermore, they cannot effectively utilize heat during heating, increasing energy loss and reducing heating efficiency.

[0004] Therefore, it is necessary to propose a heated vacuum forming mold to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a heated vacuum forming mold to solve the problem that when heating plastic materials, heat cannot be evenly distributed on the plastic, resulting in uneven heating. At the same time, the heat cannot be effectively utilized during heating, increasing energy loss and reducing heating efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heated vacuum forming mold, comprising a base, a square opening in the center of the base, a lower mold base fixedly connected inside the square opening, a push plate slidably connected inside the lower mold base, and a plurality of diffusion nozzles fixedly arranged in a rectangular array on the push plate, the diffusion nozzles being funnel-shaped with a wider top and a narrower bottom, and an air supply pipe connected to the bottom of the diffusion nozzles;

[0007] A portal frame is fixedly connected to the top surface of the base, and an upper mold base is slidably arranged between the inner walls of the portal frame.

[0008] Preferably, a movable plate is slidably disposed on the bottom surface of the base, and cylindrical rods are fixedly connected to the four corners of the top surface of the movable plate. The cylindrical rods are slidably connected to the lower mold base, and the top end of the cylindrical rods passes through the lower mold base and is fixedly connected to the bottom surface of the push plate. The movable plate is fixedly connected to the gas supply pipe.

[0009] Preferably, a fixing plate is fixedly connected to the bottom of the base, a first electric cylinder is fixedly connected to the top surface of the fixing plate, a connecting frame is fixedly connected to the piston rod end of the first electric cylinder, and the connecting frame is fixedly connected to the bottom surface of the movable plate.

[0010] Preferably, the door type frame top surface is fixedly connected with a second electric cylinder, and the piston rod end of the second electric cylinder penetrates through the door type frame and is fixedly connected with the upper die seat top surface.

[0011] Preferably, the door type frame bottom surface is fixedly connected with a discharging frame on both sides, the discharging frame is slidably arranged with a clamping plate between the interiors, the discharging frame bottom is provided with two lead screws, the discharging frame bottom surface is provided with two lead screw holes, the lead screw is in matched connection with the corresponding lead screw hole, and the lead screw top end penetrates through the discharging frame and is rotatably connected with the clamping plate bottom surface.

[0012] Preferably, the base top surface is provided with two grooves, the two grooves are located on both sides of the square opening, and the discharging frame is located directly above the corresponding groove and is consistent in size with the groove.

[0013] The technical effect of the utility model lies in: the arrangement of the diffusion nozzle rectangular array can ensure that hot air is uniformly distributed on the plastic material surface during heating, avoids uneven heating, effectively utilizes hot air, reduces energy loss, and improves heating efficiency; through the setting of the gas conveying pipe and the diffusion nozzle, after the vacuum forming work is completed, the cooperation of the parts extracts the excess in the lower die seat, accelerates the cooling of the plastic material, improves the forming quality and stability of the plastic material, reduces the scrap rate, and reduces the production cost; the diffusion nozzle can more effectively cool the plastic material by conveying cold air in the lower die seat, reduces the temperature gradient in the plastic material, avoids deformation caused by uneven cooling, and reduces the adhesion between the lower die seat and the plastic material after the cold air is blown into the lower die seat, so that demolding is more smooth, and the cold air can also help to remove impurities on the surface of the lower die seat, further reduce the resistance during demolding, after cooling, the push plate moves upward to push out the plastic material, forms a continuous and efficient production process, is favorable for reducing the waiting time in production, improves the production efficiency, and reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the heating type vacuum forming mold.

[0015] Figure 2 It is a schematic view of the heating type vacuum forming mold.

[0016] Figure 3 It is a schematic view of the heating type vacuum forming mold. Figure 2 It is an enlarged schematic view of A in the middle.

[0017] In the figure: 1, base; 11, square opening; 12, fixed plate; 13, groove;

[0018] 2, lower die seat; 21, gas conveying pipe; 22, diffusion nozzle; 23, push plate;

[0019] 3. first electric cylinder; 31. connecting frame; 32. moving plate; 33. cylindrical rod;

[0020] 4. door type frame; 41. second electric cylinder; 42. upper die holder; 43. material placing frame; 44. clamping plate; 45. screw rod. DETAILED DESCRIPTION

[0021] The utility model discloses a plastic material heating device, including the plastic material, the plastic material is placed on the material placing frame 43 top, the material placing frame 43 is fixedly connected on the door type frame 4 top, the door type frame 4 top is fixedly connected with the second electric cylinder 41, the second electric cylinder 41 piston rod end is fixedly connected with the upper die holder 42, the upper die holder 42 is fixedly connected with the clamping plate 44, the clamping plate 44 is fixedly connected with the screw rod 45, the screw rod 45 is fixedly connected with the moving plate 32, the moving plate 32 is fixedly connected with the first electric cylinder 3, the first electric cylinder 3 is fixedly connected with the connecting frame 31, the connecting frame 31 is fixedly connected with the cylindrical rod 33.

[0022] As Figures 1-3 The utility model discloses a heating type's suction plastic mould, including base 1, the middle part of base 1 is equipped with square opening 11, and the inside fixedly connected with lower die holder 2 of square opening 11, and the inside sliding connection of lower die holder 2 has push plate 23, and push plate 23 is fixedly provided with a plurality of diffusion shower nozzle 22 in rectangular array, and diffusion shower nozzle 22 is the bucket shape of wide top narrow bottom, and diffusion shower nozzle 22 bottom is connected with gas pipe 21, when carrying out suction plastic, need to heat plastic material, when heating, place plastic material to the just above of lower die holder 2, remove push plate 23, and push plate 23 removes gas pipe 21 and diffusion shower nozzle 22 and moves, when push plate 23 moves diffusion shower nozzle 22 to be close to the below of plastic material, add hot air in gas pipe 21, and hot air is sprayed to plastic material through diffusion shower nozzle 22, and plastic material is heated evenly.

[0023] Because the arrangement of diffusion shower nozzle 22 rectangular array, can ensure that hot air is evenly distributed on the surface of plastic material when heating, avoid the problem of uneven heating, effectively utilize hot air, reduce energy loss, improve heating efficiency.

[0024] Need to explain, the bottom of gas pipe 21 is connected with the gas pipeline of conveying air, and the control valve of cold and hot air conversion is installed on the gas pipeline, and when producing, can adjust the conveying of cold and hot air and suction work according to actual work demand, and necessary equipment such as exhaust fan, compressor, hot blast furnace is installed on the end of pipeline, and other equipment can also be other equipment, and the specific equipment is not limited, and the above is the mature technology of prior art, and is not shown in the figure, and will not be repeated here.

[0025] In the utility model, the top surface of the door type frame 4 is fixedly connected with the second electric cylinder 41, the piston rod end of the second electric cylinder 41 penetrates through the door type frame 4 and is fixedly connected with the top surface of the upper die holder 42; when adjusting the upper die holder 42, the second electric cylinder 41 is opened, the second electric cylinder 41 drives the upper die holder 42 to move through the piston rod, and the adjustment is completed.

[0026] It needs to be explained that the top surface of the base 1 is fixedly connected with a door-shaped frame 4, and the inner walls of the door-shaped frame 4 are slidably provided with an upper mold seat 42; the plastic material is placed at the bottom surface position of the upper mold seat 42, and when heated, the upper mold seat 42 moves above the lower mold seat 2, but does not adhere to the lower mold seat 2, and after heating is completed, the upper mold seat 42 is pressed downward to adhere to the top end of the lower mold seat 2, and a sealing structure is installed at the adhering position, which is prior art and not shown in the figure, and will not be described here.

[0027] In the utility model, the bottom of the base 1 is fixedly connected with a fixed plate 12, the top surface of the fixed plate 12 is fixedly connected with a first electric cylinder 3, the piston rod end of the first electric cylinder 3 is fixedly connected with a connecting frame 31, and the connecting frame 31 is fixedly connected to the bottom surface of a moving plate 32; the first electric cylinder 3 is opened, the connecting frame 31 is driven to move by the piston rod of the first electric cylinder 3, the moving plate 32 is driven to move by the movement of the connecting frame 31, and thus the adjustment of the subsequent push plate 23 is completed.

[0028] It needs to be explained that the bottom surface of the base 1 is slidably provided with a moving plate 32, the top surface of the moving plate 32 is fixedly connected with a cylindrical rod 33 at four corners, the cylindrical rod 33 is slidably connected with the lower mold seat 2, the top end of the cylindrical rod 33 penetrates through the lower mold seat 2 and is fixedly connected with the bottom surface of the push plate 23, and the moving plate 32 is fixedly connected with the gas conveying pipe 21; through the position of the moving plate 32, the heating or suction molding and cooling of the plastic material can be realized, the moving plate 32 is moved, the moving plate 32 drives the cylindrical rod 33 to move, the cylindrical rod 33 drives the push plate 23 and the diffusion nozzle 22 to move, and the staff can adjust according to production needs.

[0029] When suction molding starts, the push plate 23 moves to the bottom of the lower mold seat 2, and the exhaust fan is opened, the exhaust fan draws out the air in the lower mold seat 2 through the gas conveying pipe 21 and the diffusion nozzle 22, the exhaust fan draws out the air in the lower mold seat 2, completes the suction molding work, and when the excess gas in the lower mold seat 2 is removed, the cooling of the plastic material can be accelerated, the forming quality and stability of the plastic material are improved, the waste rate is reduced, and the production cost is reduced.

[0030] After production is completed, the upper mold seat 42 moves upward away from the lower mold seat 2, the diffusion nozzle 22 conveys cold air into the lower mold seat 2, the plastic material can be cooled more effectively, the temperature gradient in the plastic material is reduced, and deformation caused by uneven cooling is avoided.

[0031] When the cold air is blown into the lower mold seat 2, the adhesion between the lower mold seat 2 and the plastic material can be reduced, the demolding is more smooth, the cold air also helps to remove impurities on the surface of the lower mold seat 2, further reduces the resistance during demolding, after cooling, the push plate 23 is moved, the push plate 23 moves upward to push out the plastic material, through component cooperation, a continuous and efficient production process is formed, which is conducive to reducing the waiting time in production, improving the production efficiency and reducing the production cost.

[0032] The utility model discloses a door type frame 4 bottom surface both sides fixedly connected have the material placing rack 43, the material placing rack 43 inside between the sliding setting has the clamping plate 44, and the material placing rack 43 bottom is provided with two screw rods 45, and the material placing rack 43 bottom surface is provided with two silk holes, and the screw rod 45 is connected with the corresponding silk hole cooperation, and the screw rod 45 top passes through the material placing rack 43 and is rotatably connected with the clamping plate 44 bottom surface, plastic material passes through the gap of material placing rack 43 and places to the upper die holder 42 bottom surface, rotates the screw rod 45, and the screw rod 45 drives the clamping plate 44 and moves upwards, and the clamping plate 44 moves upwards and fixes the plastic material, and the subsequent production work is convenient.

[0033] The utility model discloses a base 1 top surface is provided with two grooves 13, and two grooves 13 are located square aperture 11 both sides, and the material placing rack 43 is located corresponding groove 13 directly above, and the material placing rack 43 is identical with groove 13 in size, when the upper die holder 42 of top moves down, and its material placing rack 43 inserts the inside of groove 13, thereby makes the upper die holder 42 and lower die holder 2 more closely and is attached, is favorable for the smooth operation of subsequent work.

Claims

1. A heated blister mold comprising a base (1), characterized in that: The middle part of the base (1) is provided with a square opening (11), and the square opening (11) is fixedly connected with a lower mold base (2) inside, the lower mold base (2) is slidably connected with a push plate (23) inside, a plurality of diffusion nozzles (22) are fixedly arranged on the push plate (23) in a rectangular array, the diffusion nozzle (22) is a wide-top narrow-bottom bucket shape, and the diffusion nozzle (22) is communicated with a gas conveying pipe (21) at the bottom; the top surface of the base (1) is fixedly connected with a door-shaped frame (4), and the upper mold base (42) is slidably arranged between the inner walls of the door-shaped frame (4).

2. The heated blister mold according to claim 1, wherein: The bottom surface of the base (1) is slidably provided with a moving plate (32), the top surface of the moving plate (32) is fixedly connected with a cylindrical rod (33) at four corners, the cylindrical rod (33) is slidably connected with the lower mold base (2), the top end of the cylindrical rod (33) penetrates through the lower mold base (2) and is fixedly connected with the bottom surface of the push plate (23), and the moving plate (32) is fixedly connected with the gas conveying pipe (21).

3. The heated blister mold of claim 2, wherein: The bottom of the base (1) is fixedly connected with a fixed plate (12), the top surface of the fixed plate (12) is fixedly connected with a first electric cylinder (3), the piston rod end of the first electric cylinder (3) is fixedly connected with a connecting frame (31), and the connecting frame (31) is fixedly connected to the bottom surface of the moving plate (32).

4. The heated blister mold of claim 1, wherein: The top surface of the door-shaped frame (4) is fixedly connected with a second electric cylinder (41), and the piston rod end of the second electric cylinder (41) penetrates through the door-shaped frame (4) and is fixedly connected with the top surface of the upper mold base (42).

5. The heated blister mold of claim 1, wherein: The bottom surface of the door-shaped frame (4) is fixedly connected with a discharging frame (43) on both sides, the discharging frame (43) is slidably arranged between the inner plates (44), the bottom of the discharging frame (43) is provided with two lead screws (45), the bottom surface of the discharging frame (43) is provided with two silk holes, the lead screw (45) is connected with the corresponding silk hole, and the top end of the lead screw (45) penetrates through the discharging frame (43) and is rotatably connected with the bottom surface of the clamping plate (44).

6. The heated blister mold of claim 5, wherein: The top surface of the base (1) is provided with two grooves (13), and the two grooves (13) are located on both sides of the square opening (11), the discharging frame (43) is located directly above the corresponding groove (13), and the size of the discharging frame (43) is consistent with that of the groove (13).

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