CN213383081U

CN213383081U - Mask forming machine

Info

Publication number: CN213383081U
Application number: CN202022115554.XU
Authority: CN
Inventors: 万金星
Original assignee: Changzhou Kanghao Polymer Material Technology Co ltd
Current assignee: Changzhou Kanghao Polymer Material Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-06-08
Anticipated expiration: 2030-09-23

Abstract

The application relates to a mask forming machine, which relates to the technical field of mask forming and comprises a rack, a driving piece, an upper die and a lower die, wherein the driving piece is connected with the rack; the upper die comprises an upper die plate and an upper hot pressing plate arranged on the upper die plate, the lower die comprises a lower die plate and a lower hot pressing plate arranged on the lower die plate, and the upper hot pressing plate and the lower hot pressing plate are arranged oppositely; the lower template is provided with a positioning groove for positioning the first veneering piece and the second veneering piece, and the first veneering piece and the second veneering piece are stacked; the lower hot pressing plate is positioned in the positioning groove, and one side, far away from the lug parts, of the first veneering piece and the second veneering piece is arranged on the lower hot pressing plate. This application has the effect of promoting the shaping quality of polyurethane gauze mask.

Description

Mask forming machine

Technical Field

The application relates to the field of mask forming, in particular to a mask forming machine.

Background

The polyurethane is a high molecular compound and can be made into polyurethane plastics, polyurethane fiber, polyurethane rubber and elastomer. The soft Polyurethane (PU) mainly has a thermoplastic linear structure, has better stability, chemical resistance, rebound resilience and mechanical property than PVC foaming materials, and has smaller compression deformability. Good heat insulation, sound insulation, shock resistance and gas defense performance. Therefore, the product is used as a packaging, sound insulation and filtering material. At present, part of the dust-proof mask can be made of polyurethane.

Polyurethane gauze mask among the correlation technique includes gauze mask body and hangers portion, and the gauze mask body is sewed up by first wainscot spare and second wainscot spare and is made, and first wainscot spare and second wainscot spare set up along the central line symmetry of gauze mask body. The hangers part is integrated with the first veneering piece and the second veneering piece, and the hangers part is respectively positioned on one side of the first veneering piece and the second veneering piece away from the central line of the mask body.

In view of the above-mentioned related arts, the inventor believes that forming a polyurethane mask by sewing easily deteriorates the sealability of the first and second attachment members at the joint, thereby easily reducing the forming quality of the mask.

SUMMERY OF THE UTILITY MODEL

In order to improve the lower problem of shaping quality when polyurethane gauze mask amalgamates, this application provides a gauze mask make-up machine.

The application provides a mask make-up machine adopts following technical scheme:

a mask forming machine comprises a rack, a driving part, an upper die and a lower die, wherein the driving part, the upper die and the lower die are connected with the rack; the upper die comprises an upper die plate and an upper hot pressing plate arranged on the upper die plate, the lower die comprises a lower die plate and a lower hot pressing plate arranged on the lower die plate, and the upper hot pressing plate and the lower hot pressing plate are arranged oppositely; the lower template is provided with a positioning groove for positioning the first veneering piece and the second veneering piece, and the first veneering piece and the second veneering piece are stacked; the lower hot pressing plate is positioned in the positioning groove, and one side, far away from the lug parts, of the first veneering piece and the second veneering piece is arranged on the lower hot pressing plate.

Through adopting above-mentioned technical scheme, the constant head tank is used for fixing a position and placing first wainscot spare and the second wainscot spare that piles up, goes up mould and lower mould compound die through the driving piece drive for go up the hot pressboard and keep away from one side of hangers portion with first wainscot spare of lower hot pressboard hot pressing and second wainscot spare, thereby connect fixed first wainscot spare and second wainscot spare. Connect first wainscot spare and second wainscot spare through the hot pressing shaping mode, it is less to the leakproofness influence of polyurethane gauze mask, and difficult fracture, does benefit to the shaping quality that promotes the polyurethane gauze mask.

Optionally, the outer surface of the lower hot pressing plate is provided with a high temperature resistant film.

Through adopting above-mentioned technical scheme, because first wainscot spare need place earlier with the second wainscot spare and fix the position in the constant head tank, so for last hot pressboard, the time of polyurethane gauze mask and lower hot pressboard contact is longer. The high-temperature resistant film can reduce the adhesion between the polyurethane mask and the lower hot pressboard when transferring the pressing temperature of the lower hot pressboard, and reduce the damage to the surface quality of the hot-pressing synthetic polyurethane mask.

Optionally, a cutting groove is formed between one side of the lower hot pressing plate far away from the lug part and the inner wall of the positioning groove, a cutter is connected to one side of the upper hot pressing plate far away from the lug part, and the orthographic projection of the cutter is located in the cutting groove.

Through adopting above-mentioned technical scheme, the cutter can excise the unnecessary part of first wainscot spare and second wainscot spare hot pressing department in hot pressing with the grooving cooperation, plays the effect of the appearance quality of repairing the polyurethane gauze mask.

Optionally, the lower die further comprises a lower die seat plate, and the lower die plate is mounted on the lower die seat plate; the upper die also comprises an upper die seat plate, and the upper die plate is arranged on the upper die seat plate; and the upper die base plate and the lower die base plate are provided with mounting holes, and electric heating pipes are mounted in the mounting holes.

Through adopting above-mentioned technical scheme, set up electric heating pipe on upper die base plate and the lower die bedplate, make upper hot pressboard and lower hot pressboard have the temperature of hot pressing through the heat-conduction of cope match-plate pattern and lower bolster. Because upper and lower hot pressboard is the position of direct forming product and is in operating condition for a long time, so generally will be higher than punch holder board and lower die holder board to the hardness and the intensity requirement of upper and lower hot pressboard, set up electric heating pipe on punch holder board and lower die holder board, be favorable to reducing the processing degree of difficulty of mould, and be convenient for make upper and lower hot pressboard thermally equivalent to can be convenient for promote the hot pressing quality of polyurethane gauze mask.

Optionally, the driving part drives the upper die to close the die towards one side of the lower die, the upper die further comprises a heat insulation plate, and the heat insulation plate is arranged on one side, far away from the upper die plate, of the upper die base plate.

Through adopting above-mentioned technical scheme, the heat insulating board is used for keeping apart punch holder board and driving piece to reduce the damage of high temperature to the driving piece.

Optionally, one side of the heat insulation plate, which is far away from the upper mold base plate, is connected with a bearing plate, and the hardness of the bearing plate is not less than that of the upper mold base plate.

By adopting the technical scheme, the bearing plate is used for bearing the pressure applied by the driving part to the upper die, so that the deformation of the heat insulation plate is favorably reduced, the influence of the deformation of the heat insulation plate on the displacement direction of the upper die can be reduced, and the die closing precision of the upper die and the lower die is convenient to promote.

Optionally, still include the direction subassembly, the direction subassembly includes makes and goes up first fitting piece and the second fitting piece of mould orientation lower mould displacement, first fitting piece is installed in the frame, the second fitting piece is installed in the one side of last mould towards the driving piece, first fitting piece and second fitting piece cooperation setting.

Through adopting above-mentioned technical scheme, the direction subassembly is used for the compound die direction of directional mould, through the cooperation of first fitting piece and second fitting piece for the directional displacement of mould is gone up in the driving piece drive, thereby makes to go up the directional compound die of mould orientation towards the lower mould side, is favorable to keeping the compound die precision of going up mould and lower mould.

Optionally, the first mating member is a guide sleeve, the second mating member is a guide pillar, and the guide sleeve is sleeved on the guide pillar in the circumferential direction and is in sliding connection with the guide pillar.

By adopting the technical scheme, the directional die assembly of the upper die is realized by adopting the guide sleeve and guide pillar matched mode, the guide is accurate, and the processing and forming are convenient.

Optionally, the device further comprises a height adjusting part, wherein the height adjusting part comprises a fixing plate, a plurality of adjusting studs, and a first adjusting nut and a second adjusting nut which are in threaded connection with the adjusting studs; the fixed plate is connected with the output of driving piece, the adjusting stud runs through the fixed plate and is connected fixedly with last mould, first adjusting nut is located the fixed plate and keeps away from the one side of last mould, second adjusting nut is located the fixed plate and goes up one side of mould towards.

By adopting the technical scheme, the driving stroke of the driving piece is relatively fixed, the die heights of the upper die and the lower die can be correspondingly adjusted along with different design requirements of different products, and the height adjusting piece is used for adjusting the die opening distance of the upper die and the lower die. The distance between the upper die and the fixing plate is adjusted by adjusting the positions of the first adjusting nut and the second adjusting nut on the adjusting stud, so that the die sinking distance between the upper die and the lower die is adjusted under the condition that the driving stroke of the driving piece is not changed.

Optionally, the upper die is connected with a fixing nut corresponding to the adjusting stud, and the adjusting stud is in threaded connection with the fixing nut.

By adopting the technical scheme, the fixing nut is in threaded connection with the adjusting stud, so that the adjusting stud is fixed with the upper die conveniently, and the adjusting stud can be detached and replaced conveniently.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the positioning groove, the upper hot pressing plate and the lower hot pressing plate can improve the sealing performance of the formed polyurethane mask, the polyurethane mask is not easy to crack, and the forming quality of the polyurethane mask is improved;

2. the high-temperature resistant film can improve the surface quality of the hot-pressing synthetic polyurethane mask;

3. through the setting of cutter and grooving, can play the effect of the appearance quality of repairing polyurethane gauze mask.

Drawings

Fig. 1 is a schematic view of the overall structure of a polyurethane mask of the related art.

Fig. 2 is a schematic view of the overall structure of the mask forming machine according to the embodiment of the present application.

Fig. 3 is a schematic view of the overall structure of a lower die according to an embodiment of the present application.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 1. a mask body; 11. a first facing member; 12. a second veneering element; 13. hanging ear parts; 2. a frame; 21. a work table; 22. a support pillar; 23. a support table; 3. a drive member; 4. a guide assembly; 41. a guide sleeve; 42. a guide post; 5. an upper die; 51. a pressure bearing plate; 52. a heat insulation plate; 53. an upper die base plate; 531. an electric heating tube; 54. mounting a template; 55. an upper hot pressing plate; 56. a cutter; 6. a lower die; 61. a lower die base plate; 62. a lower template; 621. positioning a groove; 622. positioning blocks; 623. an embedding groove; 63. a lower hot pressing plate; 64. a fixed block; 65. a high temperature resistant film; 7. a height adjustment member; 71. a fixing plate; 72. adjusting the stud; 73. a first adjusting nut; 74. a second adjusting nut; 75. and (5) fixing the nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

A polyurethane mask in the related art is shown in fig. 1, and includes a mask body 1 and a suspension loop portion 13, wherein the mask body 1 is formed by splicing a first surface-mount component 11 and a second surface-mount component 12, and the first surface-mount component 11 and the second surface-mount component 12 are symmetrically arranged along a center line of the mask body 1. The ear hanging parts 13 are integrally formed with the first veneering piece 11 and the second veneering piece 12, and the ear hanging parts 13 are respectively positioned on one sides of the first veneering piece 11 and the second veneering piece 12, which are far away from the central line of the mask body 1.

The embodiment of the application discloses a mask forming machine. Referring to fig. 1 and 2, a mask forming machine includes a frame 2, and a driving part 3, an upper die 5, and a lower die 6 connected to the frame 2, wherein a first surface-mounted part 11 and a second surface-mounted part 12 are stacked and located between the upper die 5 and the lower die 6, the driving part 3 drives the upper die 5 and the lower die 6 to be assembled, and the first surface-mounted part 11 and one side of the second surface-mounted part 12, which is far away from a lug part 13, are thermally pressed by heating the upper die 5 and the lower die 6.

Referring to fig. 2, the frame 2 includes a workbench 21 and a support column 22 installed on the workbench 21, a support table 23 parallel to the table surface of the workbench 21 is connected to a side wall of one end of the support column 22 away from the workbench 21, and the driving member 3 penetrates through the support table 23 and is connected and fixed with the support table 23. The driving part 3 adopts a driving hydraulic cylinder, and one side of an output shaft of the driving hydraulic cylinder facing the workbench 21 is connected with a height adjusting part 7. The height adjusting piece 7 is fixedly connected with the upper die 5, and the lower die 6 is arranged on the workbench 21 and corresponds to the upper die 5.

Referring to fig. 2, the height adjuster 7 includes a fixing plate 71, a plurality of adjustment studs 72, and first and

second adjustment nuts

73 and 74 threadedly coupled to the adjustment studs 72. The fixing plate 71 is connected with the output end of the driving part 3, a plurality of through holes are uniformly distributed on the fixing plate 71, and the adjusting studs 72 are inserted into the through holes and extend to the upper die 5 to be connected and fixed with the upper die 5. The first adjusting nut 73 is located on the side of the fixing plate 71 remote from the upper die 5, and the second adjusting nut 74 is located on the side of the fixing plate 71 facing the upper die 5. Under the condition that the driving stroke of the driving part 3 is not changed, the first adjusting nut 73 is screwed towards the driving part 3 side, and the die opening distance between the upper die 5 and the lower die 6 is reduced; the second adjusting nut 74 is screwed toward the upper die 5 side, and then the first adjusting nut 73 is screwed to be in contact with the fixing plate 71, so that the opening distance between the upper die 5 and the lower die 6 becomes large.

Referring to fig. 2, in order to facilitate the closing of the upper mold 5 oriented toward the lower mold 6, a guide assembly 4 is provided between the support table 23 and the fixed plate 71, the guide assembly 4 including a first mating member mounted on the support table 23 and a second mating member mounted on the fixed plate 71. The first mating member is a guide sleeve 41 and is located on one side of the support platform 23 facing the workbench 21, the second mating member is a guide post 42 and is located on one side of the fixing plate 71 facing the support platform 23, and the guide sleeve 41 is sleeved on the periphery of the guide post 42 and is slidably connected with the guide post 42.

Referring to fig. 2, the upper mold 5 includes a pressure-bearing plate 51, a heat-insulating plate 52, an upper mold base plate 53, an upper mold plate 54, and an upper hot-pressing plate 55, which are connected in sequence from top to bottom, wherein the pressure-bearing plate 51, the heat-insulating plate 52, and the upper mold base plate 53 are fixedly connected into a whole by screws, the upper mold plate 54 is fixed on the upper mold base plate 53 by a pressing plate, and the upper hot-pressing plate 55 may be provided in two and welded to the upper mold base. A fixing nut 75 is welded on the pressure bearing plate 51 at a position corresponding to the adjusting stud 72, and the upper die 5 is fixed through threaded connection of the adjusting stud 72 and the fixing nut 75. The hardness of the pressure plate 51 and the upper mold base plate 53 needs to be greater than that of the heat insulation plate 52, the pressure plate 51 and the upper mold base plate 53 can be made of 45 steel, and the heat insulation plate 52 can be made of asbestos or rock wool.

A plurality of mounting holes are uniformly distributed on the upper die base plate 53, the electric heating pipes 531 are inserted in the mounting holes, the electric heating pipes 531 are externally connected with a power supply, and after the electric heating pipes 531 are powered on, the upper die base plate 53 can be uniformly heated and conduct heat to the upper die plate 54 and the upper hot press plate 55.

Referring to fig. 2 and 3, the lower die 6 includes a lower die base plate 61, a lower die plate 62 and a lower hot press plate 63, which are sequentially arranged from bottom to top, the lower die base plate 61 is fixed on the table top of the workbench 21, the lower die plate 62 is fixed on the lower die base plate 61 through a press plate, and the lower hot press plate 63 is installed on the lower die plate 62. A plurality of mounting holes are uniformly distributed on the lower die seat plate 61, the electric heating tubes 531 are inserted in the mounting holes, the electric heating tubes 531 are externally connected with a power supply, and after the electric heating tubes 531 are electrified, the lower die seat plate 61 can be uniformly heated and conduct heat to the lower die plate 62 and the lower hot press plate 63.

The lower bolster 62 is offered towards one side of cope match-plate pattern 54 and is used for fixing a position constant head tank 621 of first wainscot spare 11 and second wainscot spare 12, and the appearance laminating of the interior shape of constant head tank 621 and first wainscot spare 11 is connected with locating piece 622 on the diapire of constant head tank 621, and hangers portion 13 department is used for the pot head of cover on the ear to locate the periphery of locating piece 622. An embedding groove 623 is formed in one side, away from the positioning block 622, of the bottom of the positioning groove 621, the two lower hot pressing plates 63 are welded to one fixing block 64, the fixing block 64 is embedded in the embedding groove 623, and the lower hot pressing plates 63 are arranged corresponding to the upper hot pressing plates 55. One side of the first veneering piece 11 and one side of the second veneering piece 12, which are far away from the ear hanging part 13, are arranged on the lower hot pressing plate 63, and when the upper die 5 and the lower die 6 are closed, the upper hot pressing plate 55 is used for hot pressing the first veneering piece 11 and the second veneering piece 12 on the lower hot pressing plate 63 to form the mask.

Referring to fig. 3, since the first and

second facing materials

11 and 12 need to be positioned in the positioning groove 621 first, the polyurethane mask is in contact with the lower hot platen 63 for a longer time than the upper hot platen 55. In order to reduce the adhesion between the polyurethane mask and the lower hot press plate 63, a high temperature resistant film 65 is disposed on the outer surface of the lower hot press plate 63 and on the side of the fixing block 64 facing the upper hot press plate 55. The high temperature resistant film 65 may be made of teflon.

Referring to fig. 3 and 4, in order to facilitate the trimming of the mask during the hot pressing, a cutting groove with a width of 3mm is formed between one side of the lower hot pressing plate 63 away from the ear hanging part 13 and the inner wall of the positioning groove 621, a cutter 56 with a thickness of 2mm is connected to one side of the upper hot pressing plate 55 away from the ear hanging part 13 through a bolt, an orthographic projection of the cutter 56 is located in the cutting groove, and the redundant parts of the first veneering member 11 and the second veneering member 12 are cut off during the hot pressing.

The implementation principle of a mask forming machine in the embodiment of the application is as follows: first, a mounting groove is formed in the table 21 at a position corresponding to the support table 23, and the mounting groove is provided coaxially with the driver 3. Next, the lower die 6 and the upper die 5 are processed and assembled, the upper die 5 and the lower die 6 are placed in a closed state, and the lower portion of the lower die base plate 61 is fitted into the mounting groove. Subsequently, the adjusting studs 72 and the fixing nuts 75 are screwed so that the fixing plate 71 and the upper mold 5 are integrally connected, and the distance between the fixing plate 71 and the upper mold 5 is adjusted by adjusting the positions of the first adjusting nuts 73 and the second adjusting nuts 74 on the adjusting studs 72 according to the designed mold opening stroke requirement.

Then, the driving member 3 is started to move the driving member 3 downward to abut against the fixing plate 71, and the driving member 3 is fixedly connected with the fixing plate 71 through a screw. Then, the driving member 3 is started to open the upper mold 5 and the lower mold 6, and the electric heating tube 531 is started until the electric heating tube 531 is heated to a specified temperature. Finally, the operator wears the gloves, puts the first veneering piece 11 and the second veneering piece 12 stacked together into the positioning groove 621, starts the driving piece 3 to drive the upper die 5 and the lower die 6 to be matched and hot-pressed to form the mask. After hot press molding, the upper die 5 and the lower die 6 are opened, and an operator takes out the mask and the waste materials and puts the next group of the first veneers 11 and the second veneers 12. In the embodiment, the hot-pressing pressure of the die is 1200N, the hot-pressing temperature is 200 ℃, and the time of each hot-pressing is 10 s.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A mask forming machine is characterized in that: the die comprises a rack (2), and a driving part (3), an upper die (5) and a lower die (6) which are connected with the rack (2), wherein the driving part (3) drives the upper die (5) and the lower die (6) to be matched; the upper die (5) comprises an upper die plate (54) and an upper hot pressing plate (55) arranged on the upper die plate (54), the lower die (6) comprises a lower die plate (62) and a lower hot pressing plate (63) arranged on the lower die plate (62), and the upper hot pressing plate (55) and the lower hot pressing plate (63) are arranged oppositely; the lower template (62) is provided with a positioning groove (621) for positioning the first veneering piece (11) and the second veneering piece (12), and the first veneering piece (11) and the second veneering piece (12) are stacked; the lower hot pressing plate (63) is located in the positioning groove (621), and one sides, far away from the lug parts (13), of the first veneering piece (11) and the second veneering piece (12) are arranged on the lower hot pressing plate (63).

2. A mask forming machine according to claim 1, wherein: and a high-temperature-resistant film (65) is arranged on the outer surface of the lower hot pressing plate (63).

3. A mask forming machine according to claim 2, wherein: a cutting groove is formed between one side of the lower hot pressing plate (63) far away from the lug hanging part (13) and the inner wall of the positioning groove (621), one side of the upper hot pressing plate (55) far away from the lug hanging part (13) is connected with a cutter (56), and the orthographic projection of the cutter (56) is positioned in the cutting groove.

4. A mask forming machine according to claim 1, wherein: the lower die (6) further comprises a lower die seat plate (61), and the lower die plate (62) is mounted on the lower die seat plate (61); the upper die (5) further comprises an upper die base plate (53), and the upper die plate (54) is mounted on the upper die base plate (53); and the upper die seat plate (53) and the lower die seat plate (61) are provided with mounting holes, and electric heating pipes (531) are mounted in the mounting holes.

5. A mask forming machine according to claim 4, wherein: the driving piece (3) drives the upper die (5) to close the die towards one side of the lower die (6), the upper die (5) further comprises a heat insulation plate (52), and the heat insulation plate (52) is arranged on one side, away from the upper die plate (54), of the seat plate of the upper die (5).

6. A mask forming machine according to claim 5, wherein: one side of the heat insulation plate (52) far away from the seat plate of the upper die (5) is connected with a bearing plate (51), and the hardness of the bearing plate (51) is not less than that of the upper die seat plate (53).

7. A mask forming machine according to claim 1, wherein: still include direction subassembly (4), direction subassembly (4) are including making last mould (5) orientation towards first fitting piece and the second fitting piece of lower mould (6) displacement, first fitting piece is installed in frame (2), the second fitting piece is installed in last mould (5) one side towards driving piece (3), first fitting piece and second fitting piece cooperation setting.

8. A mask forming machine according to claim 7, wherein: the first fitting piece adopts a guide sleeve (41), the second fitting piece adopts a guide post (42), and the guide sleeve (41) is sleeved on the periphery of the guide post (42) and is in sliding connection with the guide post (42).

9. A mask forming machine according to claim 1, wherein: the height adjusting device is characterized by further comprising a height adjusting part (7), wherein the height adjusting part (7) comprises a fixing plate (71), a plurality of adjusting studs (72), a first adjusting nut (73) and a second adjusting nut (74), and the first adjusting nut and the second adjusting nut are in threaded connection with the adjusting studs (72); the fixed plate (71) is connected with the output end of the driving piece (3), the adjusting stud (72) penetrates through the fixed plate (71) and is fixedly connected with the upper die (5), the first adjusting nut (73) is located on one side, away from the upper die (5), of the fixed plate (71), and the second adjusting nut (74) is located on one side, towards the upper die (5), of the fixed plate (71).

10. A mask forming machine according to claim 9, wherein: the upper die (5) is connected with a fixing nut (75) corresponding to the adjusting stud (72), and the adjusting stud (72) is in threaded connection with the fixing nut (75).