CN108582737B

CN108582737B - Air bag pressurizing fixed multipoint self-forming plastic uptake upper die

Info

Publication number: CN108582737B
Application number: CN201810622542.0A
Authority: CN
Inventors: 刘丹涛; 刘博�
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2023-04-28
Anticipated expiration: 2038-06-15
Also published as: CN108582737A

Abstract

The invention provides an air bag pressurizing fixed multipoint self-forming plastic uptake upper die, which comprises a shaping part (100) positioned at the upper part and a plastic uptake cloth part (200) positioned at the lower part, wherein the shaping part (100) comprises a positioning frame (101) and a plurality of shaping rods (105), and the positioning frame (101) comprises a lower positioning screen (102), an air bag layer (104) and a cavity (110); the air bag layer (104) is provided with a plurality of branch air bags (107), and the branch air bags (107) are uniformly inserted into gaps between the shaping rods (105); the plastic sucking cloth part (200) is paved at the lower end of the shaping rod (105). The shaping rod (105) which is fixed by the pressure of the air bag and is lifted at multiple points can form a shape close to any lower die and form a plane fitting with the lower die.

Description

Air bag pressurizing fixed multipoint self-forming plastic uptake upper die

Technical Field

The invention relates to an air bag pressurizing fixed multipoint self-forming plastic uptake upper die, and belongs to the field of plastic uptake processing manufacturing in the plastic packaging industry.

Background

The main principle of the plastic sucking processing technology is as follows: the coiled sheet is pulled into an electric furnace oven to be heated to a softening state, then pulled above a plastic sucking mould by heat, the mould moves upwards and vacuumizes, the softened sheet is adsorbed on the surface of the mould, meanwhile, cooling water is sprayed on the surface of the formed sheet in a mist form to harden the formed sheet, the formed sheet is automatically pulled into a storage box, and a pneumatic cutter separates the formed sheet from the non-formed sheet, so that the whole process is completed.

The existing processing technology has the defects that:

1. the plastic is not absorbed in place, the shape deformation occurs, and the plastic is not absorbed into a product with the same shape as the die;

2. excessive plastic uptake, so that the product is too thin;

3. an undesirable line mark appears on the molded product;

4. the thickness of the product is uneven.

Solving the above-mentioned problems requires debugging the mold in place, including: the sheet advancing time, the heating temperature and time, the vacuumizing strength and time, the falling position of the upper die, the time and depth, the placing position of the dies in the imposition, whether accessories are added between the dies or not, and the like.

The quality of the product is directly determined by the fit fineness of the upper die and the lower die. In the production process, an upper die is matched with a lower die, at present, in the plastic sucking packaging industry, in order to save the time and the fund for removing the die and opening the die for a long time, the upper dies are usually made by manually using materials such as wood, gypsum and the like, and each upper die needs to be manually processed for a plurality of days by a professional technical worker, and a large amount of space is occupied for storing different upper dies. There is a significant waste of capital sites in terms of operating efficiency. In addition, after the upper die is manually manufactured by a professional technical worker, the traditional plastic-absorbing cloth is required to be adhered on the upper die by glue, so that the manufacturing difficulty is high, the working procedure is complicated, the stability of the matching and shaping effect with the lower die is difficult to ensure, and the problems of undesirable line marks on a formed product or uneven thickness of the product can be caused.

Disclosure of Invention

The purpose of the invention is that:

aiming at the defects of the prior art, the utility model provides an air bag pressurizing fixed multipoint self-forming plastic uptake upper die which aims at the defects of low anastomosis degree of the upper die and the lower die and low efficiency of manufacturing and changing the upper die each time. The shaping bar 105 which is fixed by the pressure of the air bag and can be lifted up and down at multiple points can form a shape close to any lower die and a plane fitting with the lower die.

The aim of the invention can be achieved by the following technical scheme:

the utility model provides an gasbag pressurization fixed multiple spot is from shaping plastic uptake upper mould, includes the design portion that is located the upper portion and is located the plastic uptake cloth portion of lower part, the design portion includes locating frame and several shaping pole, including the lower locating screen cloth that is located its bottom in the locating frame, the gasbag layer and the cavity that are located its top that are located its middle part, open the several locating screen holes of matrix type homogeneous arrangement on the lower locating screen cloth, the shaping pole matches with locating screen hole, insert in every locating screen hole, the lower part of shaping pole stretches out locating frame, the height of shaping pole is higher than gasbag layer, shaping pole top is equipped with the stopper; the air bag layer is provided with a plurality of branch air bags, and the branch air bags are uniformly inserted into gaps between the shaping rods; the plastic sucking cloth part is paved at the lower end of the shaping rod.

The positioning frame further comprises an upper positioning screen, the upper positioning screen is arranged above the air bag layer and below the cavity, a plurality of positioning screen holes which are uniformly arranged in a matrix mode are formed in the upper positioning screen, the number and the positions of the positioning screen holes are corresponding to those of the positioning screen holes on the lower positioning screen, the upper part of the shaping rod is inserted into the positioning screen holes of the upper positioning screen, and the height of the shaping rod is higher than that of the upper positioning screen.

The number of the positioning sieve holes and the number of the sizing rods are 8000-15000 respectively.

Foot pads are inlaid at the lower ends of the shaping rods.

The foot pad is made of magnetic metal materials.

The lower edge of the foot pad is a smooth plane or curved surface.

The air bag layer is an inflatable air bag and is communicated with an air inlet and outlet pipeline, and the air inlet and outlet pipeline is further provided with an air pressure gauge, an air pressure pump, a power supply, a pressure stabilizing switch and a pressure reducing switch. The barometer can observe the pressure value of the air bag layer in real time. One end of the air inlet and outlet pipeline is connected with the pressure stabilizing switch and the pneumatic pump to form a loop, the pneumatic pump can inflate the air bag layer, the pneumatic pump is driven to inflate when the pressure stabilizing switch is opened, and the pneumatic pump stops inflating when the pressure stabilizing switch is closed. When the air pressure is lower than a set value (preset according to the actual working condition), the voltage stabilizing switch is opened, and is closed otherwise. One end of the air inlet and outlet pipeline is communicated with a decompression switch, and the decompression switch is opened to deflate the air bag layer.

The branch air bags are net-shaped air bags or a plurality of parallel air bag strips.

The air bag layer is connected with the branch air bags in parallel.

The plastic sucking cloth part comprises a magnetic adhesive layer, an iron adhesive cloth layer and a sponge layer from top to bottom. The magnetic adhesive layer is adsorbed with the iron adhesive layer through magnetic force, and the iron adhesive layer is adhered with the sponge layer through glue. The foot pad of the lower end of the shaping rod made of magnetic metal material is adsorbed by the magnetic force and the magnetic adhesive layer.

The invention has the beneficial effects that:

1. the multi-point lifting and setting rod 105 fixed by the air bag pressure can be matched with any lower die, and an upper die does not need to be independently manufactured for different lower dies. The manufacturing time, the consumable and the occupied storage space of the upper die are saved, the production efficiency is greatly improved, and the production cost is also greatly saved.

2. The air bag pressurizing and fixing multipoint self-forming plastic uptake upper die can be matched with the lower die in height, and the problem of uneven thickness of products caused by excessive or insufficient plastic uptake is solved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic view of a partial structure of the present invention, which is a schematic view of a cross-sectional structure of the lower positioning screen 102, and the structure of the upper positioning screen 108 is the same as that of the lower positioning screen 102.

Fig. 3 is a schematic view of a partial structure of an embodiment of the present invention, which is a schematic view of a vertical section of a positioning frame 101, in which the positioning frame 101 includes a lower positioning screen 102 at the bottom thereof, an air bag layer 104 at the middle thereof, and a cavity 110 at the top thereof.

Fig. 4 is a schematic view of a partial structure of an embodiment of the present invention, which is a schematic view of a vertical section of a positioning frame 101, in which the positioning frame 101 includes a lower positioning screen 102 at the bottom thereof, an air bag layer 104 at the middle thereof, an upper positioning screen 108 at the upper thereof, and a cavity 110 at the top thereof.

Fig. 5 is a schematic partial structure of an embodiment of the present invention, which is a schematic cross-sectional view of the positioning frame 101, and in this embodiment, the bypass airbag 107 is a plurality of parallel airbag strips.

Fig. 6 is a schematic partial structure of an embodiment of the present invention, which is a schematic cross-sectional view of the positioning frame 101, and in this embodiment, the bypass airbag 107 is a mesh airbag.

Fig. 7 is a schematic diagram of a partial structure of the present invention, which is a connection relationship between the air inlet and outlet pipe 111 and the barometer, the pneumatic pump, the power supply, the voltage stabilizing switch, and the pressure reducing switch.

Wherein:

100. a shaping part; 101. a positioning frame; 102. a lower positioning screen; 103. positioning sieve holes; 104. an air bag layer; 105. a shaping rod; 106. a limiting block; 107. a bypass airbag; 108. a positioning screen is arranged on the upper part; 109. foot pads; 110. a cavity; 111. an air inlet and outlet pipeline;

200. a plastic suction cloth part; 201. a magnetic adhesive layer; 202. an iron adhesive cloth layer; 203. a sponge layer;

300. and (5) lower die.

Detailed Description

The invention will be further described with reference to the drawings and the specific examples.

As shown in fig. 1, the air bag pressurizing and fixing multi-point self-forming upper plastic sucking mould comprises a shaping part 100 positioned at the upper part and a plastic sucking cloth part 200 positioned at the lower part, wherein the shaping part 100 comprises a positioning frame 101 and a plurality of shaping rods 105, and the positioning frame 101 comprises a lower positioning screen 102 positioned at the bottom of the positioning frame, an air bag layer 104 positioned at the middle part of the positioning screen and a cavity 110 positioned at the top of the positioning screen.

As shown in fig. 2, a plurality of positioning sieve holes 103 are uniformly arranged on the lower positioning sieve 102, a shaping rod 105 is matched with the positioning sieve holes 103 and is inserted into each positioning sieve hole 103, the shaping rod 105 can move up and down, the lower part of the shaping rod 105 extends out of the positioning frame 101, the height of the shaping rod 105 is higher than that of the air bag layer 104, and a limiting block 106 is arranged at the top of the shaping rod 105 to prevent the shaping rod 105 from falling down; the air bag layer 104 is provided with a plurality of branch air bags 107, and the branch air bags 107 are uniformly inserted into gaps between the shaping rods 105; the plastic suction cloth part 200 is laid at the lower end of the shaping bar 105.

As shown in fig. 4, the positioning frame 101 may further include an upper positioning screen 108, the upper positioning screen 108 is disposed above the air bag layer 104 and below the cavity 110, a plurality of positioning screen holes 103 are formed on the upper positioning screen 102 and are uniformly arranged in a lattice manner, the number and positions of the positioning screen holes 103 correspond to those of the positioning screen holes 103 on the lower positioning screen 102, the upper portion of the shaping rod 105 is inserted into the positioning screen holes 103 of the upper positioning screen 108, and the height of the shaping rod 105 is higher than that of the upper positioning screen 108. The arrangement of the upper positioning screen 108 can make the up-and-down movement track of the shaping rod 105 and the positioning effect of the air bag more stable.

The number of the positioning screen holes 103 and the setting bars 105 is 8000 to 15000, preferably 10000 to 12000.

Foot pads 109 are embedded in the lower ends of the shaping rods 105, and the foot pads 109 are made of magnetic metal materials.

The lower edge of the foot pad 109 is a smooth plane or curved surface.

The air bag layer 104 is an inflatable air bag, and the air bag layer 104 is communicated with an air inlet and outlet pipeline 111. As shown in fig. 7, the air inlet and outlet pipeline 111 is further provided with an air pressure gauge, an air pressure pump, a power supply, a voltage stabilizing switch and a pressure reducing switch. The barometer can observe the pressure value of the air bag layer 104 in real time. One end of the air inlet and outlet pipeline 111 is connected with a pressure stabilizing switch and a pneumatic pump to form a loop, the pneumatic pump can charge air to the air bag layer 104, the pneumatic pump is driven to charge air when the pressure stabilizing switch is opened, and the pneumatic pump stops charging when the pressure stabilizing switch is closed. When the air pressure is lower than a set value (preset according to the actual working condition), the voltage stabilizing switch is opened, and is closed otherwise. One end of the air inlet and outlet pipeline 111 is communicated with a decompression switch, and when the decompression switch is opened, the air bag layer 104 is deflated.

As shown in fig. 6, the bypass balloon 107 may be a mesh balloon; or as shown in fig. 5, the bypass airbag 107 is a plurality of parallel airbag strips. The airbag layer 104 is connected in parallel with the bypass airbag 107. In actual production, the region of the shaping bar 105 (hereinafter referred to as the effective region) that is attached to the lower mold 300 is usually located in the middle region of the positioning frame 101, so that the deployment of the bypass airbag 107 is mainly performed to ensure that the shaping bar 105 in the effective region is fixed.

The plastic sucking cloth part 200 comprises a magnetic adhesive layer 201, an iron adhesive cloth layer 202 and a sponge layer 203 from top to bottom. The magnetic adhesive layer 201 is adsorbed with the iron adhesive layer 202 by magnetic force, and the iron adhesive layer 202 is adhered with the sponge layer 203 by glue. The foot pad 109 which is made of magnetic metal material and is arranged at the lower end of the shaping rod is adsorbed to the magnetic adhesive layer 201 through magnetic force.

The working principle and main working process of the invention are as follows: the air bag layer 104 is in a decompression state, the shaping bars 105 are in a state of being free to move up and down, then the shaping bars 105 are dropped into the lower die 300 to form a shape corresponding to the lower die 300, and then the air bag layer 104 is inflated, so that the up and down positions of the shaping bars 105 are fixed. The magnetic adhesive layer 201, the iron adhesive layer 202 and the sponge layer 203 which correspond to the shape of the lower die are trimmed, the magnetic adhesive layer 201 is adsorbed to the foot pad 109 which is arranged at the lower end of the shaping rod and is made of magnetic metal, the magnetic adhesive layer 201 is adsorbed to the iron adhesive layer 202 downwards through magnetic force, and the iron adhesive layer 202 is adhered to the sponge layer 203 through glue. The plastic sucking operation can be further performed.

Example 1:

as shown in FIG. 1, the air bag pressurizing fixing multi-point self-forming upper plastic sucking mould comprises a shaping part 100 positioned at the upper part and a plastic sucking cloth part 200 positioned at the lower part, wherein the shaping part 100 comprises a positioning frame 101 and a plurality of shaping rods 105, and as shown in FIG. 4, the positioning frame 101 comprises a lower positioning screen 102 positioned at the bottom of the positioning frame, an air bag layer 104 positioned at the middle of the positioning frame, an upper positioning screen 108 positioned at the upper part of the positioning frame and a cavity 110 positioned at the top of the positioning frame.

The number of the positioning sieve holes 103 and the shaping bars 105 is 10000 respectively.

Foot pads 109 are embedded in the lower ends of the shaping rods 105, the foot pads 109 are made of magnetic metal materials, and the lower edges of the foot pads 109 are smooth planes or curved surfaces.

As shown in fig. 5, the bypass airbag 107 is a plurality of parallel airbag strips. The airbag layer 104 is connected in parallel with the bypass airbag 107.

The plastic suction cloth part 200 comprises a magnetic adhesive layer 201, a ferromagnetic cloth layer 202 and a sponge layer 203 from top to bottom. The magnetic adhesive layer 201 is adsorbed with the iron adhesive layer 202 by magnetic force, and the iron adhesive layer 202 is adhered with the sponge layer 203 by glue. The foot pad 109 which is made of magnetic metal material and is arranged at the lower end of the shaping rod is adsorbed to the magnetic adhesive layer 201 through magnetic force.

Example 2:

as shown in connection with fig. 1, 2, 3, 5 and 7, embodiment 2 differs from embodiment 1 only in that: example 2 as shown in fig. 3, the positioning frame 101 includes a lower positioning screen 102 at the bottom thereof, an air bag layer 104 at the middle thereof, and a cavity 110 at the top thereof. In example 2, the upper positioning screen 108 located at the upper portion of the positioning frame 101 is not provided.

Example 3:

as shown in connection with fig. 1, 2, 4, 6 and 7, embodiment 3 differs from embodiment 1 only in that: example 3 as shown in fig. 6, the bypass balloon 107 is a mesh balloon.

Example 4:

as shown in connection with fig. 1, 2, 3, 6 and 7, embodiment 4 differs from embodiment 1 in that: example 4 as shown in fig. 3, the positioning frame 101 includes a lower positioning screen 102 at the bottom thereof, an air bag layer 104 at the middle thereof, and a cavity 110 at the top thereof-example 4 does not provide an upper positioning screen 108 at the upper portion of the positioning frame 101.

Example 4 as shown in fig. 6, the bypass balloon 107 is a mesh balloon.

Example 5:

as shown in connection with fig. 1, 2, 4, 5 and 7, embodiment 5 differs from embodiment 1 only in that: the number of the positioning holes 103 and the setting bars 105 in example 5 was 12000.

Although the invention has been described and illustrated herein with respect to a certain specific configuration or arrangements, it is not intended to limit the details as various modifications and structural changes may be made within the scope of the claims without departing from the spirit of the invention.

The present invention relates to a device which is partly the same as or can be implemented by the prior art.

Claims

1. The utility model provides an gasbag pressurization fixed multiple spot is from shaping plastic uptake upper mould, includes shaping portion (100) and plastic uptake cloth portion (200) that are located the lower part that are located the upper portion, characterized in that shaping portion (100) have included locating frame (101) and several shaping pole (105), locating frame (101) have included locating screen cloth (102) down in its bottom, gasbag layer (104) in its middle part and cavity (110) in its top that are located, offer several location sieve mesh (103) of lattice type even arrangement on locating screen cloth (102) down, shaping pole (105) match with location sieve mesh (103), insert in every location sieve mesh (103), the lower part of shaping pole (105) stretches out locating frame (101), the height of shaping pole (105) is higher than gasbag layer (104), shaping pole (105) top is equipped with stopper (106); the air bag layer (104) is provided with a plurality of branch air bags (107), and the branch air bags (107) are uniformly inserted into gaps between the shaping rods (105); the plastic sucking cloth part (200) is paved at the lower end of the shaping rod (105); foot pads (109) are inlaid at the lower ends of the shaping rods (105), and the foot pads (109) are made of magnetic metal materials; the lower edge of the foot pad (109) is a smooth plane or curved surface; the plastic suction cloth part (200) comprises a magnetic adhesive layer (201), an iron adhesive cloth layer (202) and a sponge layer (203) from top to bottom; the magnetic adhesive layer (201) is adsorbed with the iron adhesive layer (202) through magnetic force, and the iron adhesive layer (202) is adhered with the sponge layer (203) through glue; the foot pad (109) which is made of magnetic metal and is arranged at the lower end of the shaping rod (105) is adsorbed with the magnetic adhesive layer (201) through magnetic force.

2. The air bag pressurizing fixed multipoint self-forming plastic uptake upper die according to claim 1, characterized in that the positioning frame (101) further comprises an upper positioning screen (108), the upper positioning screen (108) is arranged above the air bag layer (104) and below the cavity (110), a plurality of positioning screen holes (103) which are uniformly arranged in a lattice mode are arranged on the upper positioning screen (108), the number and the positions of the positioning screen holes (103) correspond to those of the positioning screen holes (103) on the lower positioning screen (102), the upper part of the shaping rod (105) is inserted into the positioning screen holes (103) of the upper positioning screen (108), and the height of the shaping rod (105) is higher than that of the upper positioning screen (108).

3. The air bag pressurizing fixed multi-point self-forming plastic uptake mold according to claim 1 or 2, characterized in that the number of the positioning sieve holes (103) and the shaping bars (105) is 8000-15000.

4. The air bag pressurizing fixed multipoint self-forming plastic uptake upper die according to claim 1, wherein the air bag layer (104) is an inflatable air bag, the air bag layer (104) is communicated with an air inlet and outlet pipeline (111), and an air pressure gauge, an air pressure pump, a power supply, a pressure stabilizing switch and a pressure reducing switch are further arranged on the air inlet and outlet pipeline (111).

5. The airbag pressurizing fixed multi-point self-forming plastic uptake mold according to claim 1, characterized in that the bypass airbag (107) is a net airbag or a plurality of parallel airbag strips.

6. The airbag pressurizing fixed multi-point self-forming plastic uptake mold according to claim 1, 4 or 5, characterized in that the airbag layer (104) and the bypass airbag (107) are connected in parallel.