A stamping device for producing shading sheets with dust-proof function

Abstract

The present invention relates to the field of shading sheet production, and in particular to a stamping device for shading sheet production with dustproof function, including a stamping bed and a workbench, etc.; the workbench is installed on the stamping bed. The present invention realizes the formation of a closed space in the demoulding area through a fixed block, a sealing block and a dust cover, improves the demoulding and collecting effect of wind force on the shading sheet, and ensures that all the shading sheets can be accurately blown into the loading bag; at the same time, it prevents dust and hair impurities in the surrounding air from being brought into the loading trough, causing the shading sheet to be contaminated and affecting the subsequent use of the shading sheet; when the rotating plate moves the feeding, the airflow blown out from the air outlet of the air inlet trough is introduced into the collection trough, and then the dust and hair impurities on the surface of the shading sheet are removed; when the fixed plate moves down, the airflow blown out from the air outlet of the air inlet trough is introduced into the loading trough, and then the stamped shading sheet is demoulded and collected, and dust and hair impurities are prevented from being blown into the loading trough.

Description

Technical Field

[0001] The invention relates to the field of shading sheet production, and in particular to a punching device for producing shading sheets with a dustproof function. Background Art

[0002] The stamping process is widely used in the production of shading sheets, and has the advantages of high production efficiency, low cost and stable product quality.

[0003] During the stamping production process of sunshade sheets, in order to avoid the problem of using structures such as ejectors to demold the punched sunshade sheets by pushing them out of the mold, which would cause damage to the surface of the sunshade sheets, the punched sunshade sheets are usually demolded and collected by blowing air; that is, the sunshade sheets are blown out of the mold by wind and sent into a loading bag for collection; however, in the actual demolding process, because the demolding area cannot form a closed space, and the air in the production workshop is mixed with dust and hair impurities, when the sunshade sheets are blown out of the mold by wind and sent into the loading bag for collection, the dust and hair impurities mixed in the air will also be brought into the loading bag by the wind, causing the sunshade sheets to be contaminated and affecting their subsequent use; at the same time, when the sunshade sheets are blown out of the mold by wind and sent into the loading bag for collection, it cannot be guaranteed that all the sunshade sheets can be accurately blown into the loading bag, and a small amount of them will be blown to the ground. Summary of the invention

[0004] In order to overcome the disadvantage that during the existing demoulding process of shading sheets, since the demoulding area cannot form a closed space, when the shading sheets are blown out of the mold by wind and sent into a charging bag for collection, dust and hair impurities in the air will also be brought into the charging bag, causing the shading sheets to be contaminated and affecting the subsequent use of the shading sheets, the present invention provides a stamping equipment for producing shading sheets with a dustproof function.

[0005] The technical scheme of the present invention is: a stamping equipment for producing shading sheets with dustproof function, including a stamping bed, a workbench, a fixed plate, an upper mold and a lower mold; a workbench is installed on the stamping bed, and an air intake pipe is arranged on the front side of the workbench; a lower mold is fixedly connected to the workbench; the stamping bed is fixedly connected to the fixed plate through a first electric push rod; the fixed plate is driven to move up and down by the first electric push rod in the stamping bed; an upper mold is fixedly connected to the lower side of the fixed plate through a second electric push rod; the upper mold is driven to move up and down by the second electric push rod in the fixed plate; it also includes a fixed block, a clamping wheel, a sealing block and a cutter; two symmetrical front and rear molds are connected to the workbench A fixed block for clamping the shading sheet; the lower mold is located between the two fixed blocks; the left and right sides of each fixed block are rotatably connected with a clamping wheel; an air inlet and an air inlet groove are provided on the fixed block located on the front side of the workbench, and the air inlet and the air inlet groove are connected; the air inlet is connected to the air inlet pipe; the air outlet of the air inlet groove faces the lower mold; an air outlet groove is provided on the fixed block located on the rear side of the workbench; a loading trough is provided in the stamping bed; the feeding port of the loading trough is located on the rear side of the air outlet groove; a number of left-right symmetrical sealing blocks are fixedly connected to the lower side of the fixed plate; a number of cutting knives are fixedly connected to the lower side of the upper mold; a number of stamping grooves corresponding to the cutting knives are provided on the upper surface of the lower mold.

[0006] More preferably, the lower side of the sealing block is configured as a sponge block.

[0007] More preferably, a dust cover is further included; the dust cover is fixedly connected to the front side of the feed port of the charging chute, and the dust cover is in contact with the corresponding fixed block.

[0008] More preferably, it also includes a lower pressure plate and a rotating plate; a collecting groove is opened in the punching bed; the lower pressure plate is fixedly connected to the rear side of the fixed plate, and a plurality of extrusion parts are arranged on the lower side of the lower pressure plate; the dust cover is rotatably connected to the rotating plate through a torsion spring; the rotating plate divides the interior of the dust cover into a first connecting groove and a second connecting groove; a plurality of square grooves are opened on the upper side of the dust cover.

[0009] More preferably, the front side of the rotating plate is chamfered and provided with a sponge layer.

[0010] More preferably, a rotating wheel is further included; the lower side of each extrusion portion is rotatably connected to the rotating wheel.

[0011] More preferably, an alarm is also included; a plurality of alarms are fixedly connected to the upper side of the fixing plate.

[0012] More preferably, the alarm is electrically connected to the emergency stop switch of the punching machine.

[0013] The working principle of the above embodiment is as follows: More preferably, it also includes a second spring and an extrusion block; a second spring is fixedly connected between each fixed block and the workbench; the fixed block is slidably connected to the workbench; a plurality of extrusion blocks are arranged on the lower side of the fixed plate; the upper surface of the lower mold is lower than the upper vertex position of the lower clamping wheel.

[0014] More preferably, a rubber layer is provided on the lower side of the extrusion block.

[0015] The beneficial effects of the present invention are as follows: the present invention realizes that when the shading sheet is demoulded, a closed space is formed in the demoulding area through the fixing block, the sealing block and the dust cover, thereby improving the demoulding and collecting effect of the shading sheet by wind force, and ensuring that all the shading sheets can be accurately blown into the loading bag; at the same time, dust and hair impurities in the surrounding air are prevented from being brought into the loading trough, resulting in the shading sheet being contaminated, which affects the subsequent use of the shading sheet;

[0016] By rotating the plate, the airflow blown out from the air inlet outlet is introduced into the collecting trough during the moving feeding, thereby removing the dust and hair impurities on the surface of the shading sheet; when the fixed plate moves down, the airflow blown out from the air inlet outlet is introduced into the loading trough, thereby demoulding and collecting the shading sheet after stamping, thereby preventing dust and hair impurities from being blown into the loading trough, thereby affecting the quality of the shading sheet;

[0017] In the initial state, the fixed block is pushed upward by the second spring, so that the shading sheet is suspended in the air and does not contact the upper surface of the workbench and the lower mold when it is moved for feeding, and is exactly located at the air outlet of the air inlet groove, so that the airflow blown out of the air inlet groove can not only blow away the dust and hair on the upper surface of the shading sheet, but also blow away the dust and hair that enters between the lower surface of the shading sheet and the upper surface of the lower mold, greatly improving the cleaning and dustproof effect of the shading sheet and the lower mold; and when the fixed plate moves downward, the fixed block is pressed downward, so that the shading sheet fits the lower mold, avoiding the height error between the clamping area of ​​the clamping wheel and the upper surface of the lower mold, affecting the subsequent stamping.

[0018] The present invention also has the following beneficial effects:

[0019] An alarm is set on the upper side of the fixed plate. When the stamping equipment fails, the alarm will immediately sound an alarm to alert the staff. At the same time, the stamping bed will also be alerted by the alarm, activate the emergency stop switch, and suspend work to avoid damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a stamping device for producing a light shielding sheet with a dustproof function according to the present invention;

[0021] Figure 2 is a cross-sectional view of a workbench of the present invention;

[0022] Figure 3 is a cross-sectional view of a fixing block of the present invention;

[0023] Figure 4 It is a schematic diagram of the installation position of the cutter of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the lower pressing plate, rotating wheel, dust cover and rotating plate combination of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the dust cover and the rotating plate combination of the present invention;

[0026] Figure 7 It is a stamping state diagram of the present invention.

[0027] In the accompanying drawings: 1-punching bed, 1001-charging trough, 1002-collecting trough, 2-workbench, 2001-inlet pipe, 3-fixed plate, 101-upper mold, 102-lower mold, 10201-punching groove, 103-fixed block, 10301-air inlet, 10302-air inlet groove, 10303-air outlet groove, 104-second spring, 105-clamping wheel, 106-dust cover, 10601-square groove, 10602-first connecting groove, 10603-second connecting groove, 107-sealing block, 10701-sponge block, 108-extrusion block, 109-cutter, 110-alarm, 201-lower pressure plate, 20101-extrusion part, 202-rotating wheel, 203-rotating plate, 555-shading sheet. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Example

[0029] A punching device for producing a shading sheet with dustproof function, such as Figure 1-Figure 7 As shown, it includes a punching bed 1, a workbench 2, a fixed plate 3, an upper mold 101 and a lower mold 102; the workbench 2 is installed on the punching bed 1, and an air intake pipe 2001 is arranged on the front side of the workbench 2; the lower mold 102 is fixedly connected to the workbench 2; the punching bed 1 is fixedly connected to the fixed plate 3 through a first electric push rod; the fixed plate 3 is driven to move up and down by the first electric push rod in the punching bed 1; the upper mold 101 is fixedly connected to the lower side of the fixed plate 3 through a second electric push rod; the upper mold 101 is driven to move up and down by the second electric push rod in the fixed plate 3;

[0030] It also includes a fixed block 103, a clamping wheel 105, a sealing block 107 and a cutter 109; two front-to-back symmetrical fixed blocks 103 are connected to the workbench 2; the lower mold 102 is located between the two fixed blocks 103; the left and right sides of each fixed block 103 are rotatably connected to the clamping wheel 105, and the clamping wheel 105 is an electric drive wheel; the fixed block 103 located on the front side of the workbench 2 is provided with an air inlet 10301 and an air inlet groove 10302, and the air inlet 10301 and the air inlet groove 10302 are connected; the air inlet 10301 It is connected to the air inlet pipe 2001; the air outlet of the air inlet groove 10302 faces the lower mold 102; an air outlet groove 10303 is provided on the fixed block 103 located at the rear side of the workbench 2; a loading groove 1001 is provided in the punching bed 1; the inlet of the loading groove 1001 is located at the rear side of the air outlet groove 10303; two left-right symmetrical sealing blocks 107 are fixedly connected to the lower side of the fixed plate 3; a plurality of cutters 109 are fixedly connected to the lower side of the upper mold 101; a plurality of stamping grooves 10201 corresponding to the cutters 109 are provided on the upper surface of the lower mold 102.

[0031] The lower side of the sealing block 107 is configured as a sponge block 10701 .

[0032] A dust cover 106 is also included; the dust cover 106 is fixedly connected to the front side of the feed port of the charging trough 1001 , and the dust cover 106 is in contact with the corresponding fixing block 103 .

[0033] It also includes a lower pressure plate 201 and a rotating plate 203; a collecting groove 1002 is opened in the punching bed 1; the lower pressure plate 201 is fixedly connected to the rear side of the fixed plate 3, and two extrusion parts 20101 are arranged on the lower side of the lower pressure plate 201; the rotating plate 203 is rotatably connected to the dust cover 106 through a torsion spring; the rotating plate 203 divides the inside of the dust cover 106 into a first connecting groove 10602 and a second connecting groove 10603; the first connecting groove 10602 is connected to the collecting groove 1002; the second connecting groove 10603 is connected to the loading groove 1001; two square grooves 10601 are opened on the upper side of the dust cover 106.

[0034] The front side of the rotating plate 203 is chamfered and provided with a sponge layer.

[0035] It also includes a rotating wheel 202; the lower side of each extrusion portion 20101 is rotatably connected to the rotating wheel 202.

[0036] It also includes an alarm 110 ; two alarms 110 are fixedly connected to the upper side of the fixing plate 3 .

[0037] The alarm 110 is electrically connected to the emergency stop switch of the punching machine 1 .

[0038] The working principle of the above embodiment is as follows:

[0039] To solve the problems raised in the background technology, the present invention proposes the following method: firstly Figure 1 The shading sheet 555 is fed from right to left and passes between the upper and lower clamping wheels 105; at this time, the shading sheet 555 is clamped by the clamping wheel 105, and the clamping wheel 105 can be driven by electricity to rotate, thereby assisting in driving the shading sheet 555 to move; before stamping the shading sheet 555, the air inlet pipe 2001 is connected to the external air pump; when the shading sheet 555 moves to the stamping position, that is, the shading sheet 555 covers the lower mold 102, the feeding mechanism stops working, and then the fixed plate 3 and the upper mold 101 are driven downward by the first electric push rod in the punching bed 1. At this time, Figure 7As shown: the fixed plate 3 is in contact with the fixed block 103, and the sealing block 107 is in contact with the shading sheet 555 in the left and right areas of the lower mold 102, and the shading sheet 555 is pressed downward, so that the lower mold 102, the shading sheet 555 and the sealing block 107 are fitted together, and the lower side of the sealing block 107 is set as a sponge block 10701 to avoid wear of the shading sheet 555 when the sealing block 107 is pressed down. At the same time, the sponge block 10701 can be deformed during squeezing, thereby improving the fit between the sealing block 107 and the shading sheet 555 and improving the sealing effect; and then the left and right sides of the shading sheet 555 are pressed together. The upper mold 101 is then controlled to extend downward by the second electric push rod in the fixed plate 3, thereby driving the cutter 109 to move downward. At the same time, the cutter 109 extends downward, so that the cutter 109 is inserted into the stamping groove 10201 to stamp the shading sheet 555. After the stamping is completed, the second electric push rod in the fixed plate 3 controls the upper mold 101 to drive the cutter 109 to retract and reset upward; then the external air pump is started to supply air to the air inlet pipe 2 001, at this time, the airflow will enter the air inlet groove 10302 through the air inlet 10301, and blow out to the upper side of the lower mold 102. At this time, the upper side of the lower mold 102 is sealed by the sealing block 107 and the fixing block 103, so the airflow can only be blown out through the air outlet groove 10303, and then the airflow enters the charging trough 1001, and then the airflow blown out through the air outlet of the air inlet groove 10302 blows the punched shading sheet into the charging trough 1001, and the front side of the feeding port of the charging trough 1001 is fixed with a dust cover 106; therefore, the feeding section from the air outlet groove 10303 to the charging trough 1001 The area is also sealed, and a closed space is formed in the demoulding area by this method, and the demoulding and collecting effect of the wind on the shading sheet is improved, ensuring that all the shading sheets can be accurately blown into the loading bag; at the same time, dust and hair impurities in the surrounding air are prevented from being brought into the loading trough 1001, causing the shading sheet to be contaminated, affecting the subsequent use of the shading sheet; after the shading sheet is demoulded, the first electric push rod in the punching bed 1 controls the fixed plate 3 to move upward and reset, and at this time the feeding mechanism restarts to feed the material, so that the remaining positions of the shading sheet 555 to be punched are moved to the punching position and the above operation is repeated for punching;

[0040] Furthermore, although during stamping, a closed space can be formed in the demoulding area by the fixing plate 3, the fixing block 103 and the sealing block 107 to prevent dust and hair impurities in the surrounding air from being brought into the loading trough 1001 when the shading sheet is demoulded and collected by blowing; however, there are dust and hair impurities in the air in the stamping workshop. When the fixing plate 3 moves upward and resets, the demoulding area is no longer sealed. At this time, the dust and hair impurities in the stamping production workshop will enter the demoulding area and contact the shading sheet 555; therefore, in the initial state, Figure 5 As shown: the external air pump always blows air into the air inlet groove 10302. At this time, under the action of the torsion spring at the connection between the rotating plate 203 and the dust cover 106, the front side of the rotating plate 203 is located above the air outlet groove 10303, and the chamfered corner of the sponge material on the front side of the rotating plate 203 will contact the fixed block 103 at the rear. The front side of the rotating plate 203 is located above the air outlet groove 10303, and the chamfered corner of the sponge material on the front side of the rotating plate 203 is adaptively pressed, so that the rotating plate 203 is in close contact with the fixed block 103 at the rear. The second connecting groove 10603 is not connected to the air outlet groove 10303, and the first connecting groove 10602 is connected to the air outlet groove 10303. When the fixing plate 3 is not moved down, the external air pump will also blow air into the air inlet groove 10302, and the air flow will be blown out from the air outlet of the air inlet groove 10302, that is, from the front side of the lower mold 102, and the dust and hair impurities on the surface of the shading sheet 555 will be blown into the collecting groove 1002. In this process, the dust and hair impurities are blocked by the rotating plate 203 to avoid dust and hair impurities. The material enters the loading trough 1001 through the second connecting groove 10603, and then the dust and hair impurities on the surface of the shading sheet 555 are removed; when the fixed plate 3 moves downward, the fixed plate 3 will drive the lower pressure plate 201 to move downward, and then the extrusion part 20101 will enter the dust cover 106 through the square groove 10601, and squeeze the rotating plate 203 downward, and then the rotating plate 203 is pressed to rotate, and the torsion spring at the connection between the rotating plate 203 and the dust cover 106 is compressed. When the fixed plate 3 contacts the fixed block 103, At this time, the front side of the rotating plate 203 is pressed down to the bottom of the air outlet groove 10303 by the extrusion part 20101. At this time, the second connecting groove 10603 and the air outlet groove 10303 are connected, and the first connecting groove 10602 and the air outlet groove 10303 are not connected. Therefore, when the punched shading sheet is demolded and collected, the gas blown out from the air outlet of the air inlet groove 10302 will blow the punched shading sheet into the loading groove 1001, so as to prevent dust and hair impurities from being blown into the loading groove 1001 and affecting the subsequent use of the shading sheet.

[0041] It should be noted that the loading trough 1001 is connected to a loading bag for collecting the shading sheet after stamping and demolding, and the collecting trough 1002 is also connected to a loading bag for collecting the cleaned dust and hair impurities.

[0042] According to the above working principle, we know that the present invention has the following effects:

[0043] Through the fixing block 103, the sealing block 107 and the dust cover 106, when the shading sheet 555 is demoulded, a closed space is formed in the demoulding area, which improves the demoulding and collecting effect of the wind on the shading sheet, and ensures that all the shading sheets can be accurately blown into the loading bag; at the same time, it prevents dust and hair impurities in the surrounding air from being brought into the loading trough 1001, causing the shading sheet to be contaminated, affecting the subsequent use of the shading sheet;

[0044] By rotating the plate 203, the airflow blown out from the air outlet of the air inlet groove 10302 is introduced into the collecting groove 1002 when the material is moved, and the dust and hair impurities on the surface of the shading sheet 555 are removed; when the fixed plate 3 moves downward, the airflow blown out from the air outlet of the air inlet groove 10302 is introduced into the loading groove 1001, and the stamped shading sheet is demoulded and collected to prevent dust and hair impurities from being blown into the loading groove 1001 and affecting the quality of the shading sheet.

[0045] On the basis of the above technical effects, the present invention also has the following advantages:

[0046] An alarm 110 is provided on the upper side of the fixed plate 3. When the stamping equipment fails, the alarm 110 will immediately sound an alarm to alert the staff. At the same time, the stamping bed 1 will also be alerted by the alarm 110, and the emergency stop switch will be activated to suspend work to avoid damage to the equipment.

[0047] A rotating wheel 202 is provided at the lower side of the extrusion part 20101 to reduce the extrusion friction of the extrusion part 20101 on the rotating plate 203 and increase the service life of the equipment. Example

[0048] On the basis of Example 1, Figure 2 and Figure 7 As shown, it also includes a second spring 104 and an extrusion block 108; a second spring 104 is fixedly connected between each fixed block 103 and the workbench 2; the fixed block 103 is slidably connected to the workbench 2; four extrusion blocks 108 are arranged on the lower side of the fixed plate 3; the upper surface of the lower mold 102 is lower than the upper vertex position of the lower clamping wheel 105.

[0049] The lower side of the extrusion block 108 is provided with a rubber layer.

[0050] The working principle of the above embodiment is as follows:

[0051] When the shading sheet 555 is stamped, during the re-feeding process of the shading sheet 555, dust and hair impurities can easily enter the upper surface of the lower mold 102 directly through the stamped area of ​​the shading sheet 555; in the process of blowing the dust and hair on the shading sheet 555 into the collecting tank 1002 through the airflow described in the first embodiment, because the shading sheet 555 is conveyed close to the upper surface of the lower mold 102, the airflow blown out of the air outlet of the air inlet groove 10302 is difficult to clean the area between the lower mold 102 and the shading sheet 555; as a result, when the shading sheet 555 is conveyed, the shading sheet 555 will rub against the dust and hair impurities adhered to the surface of the lower mold 102, causing the shading sheet 555 to wear;

[0052] Therefore, Figure 2As shown: in the initial state, the second spring 104 pushes the fixed block 103 upward, and at this time, the clamping area of ​​the clamping wheel 105 is higher than the upper surface of the lower mold 102; therefore, the shading sheet 555 is in a suspended state when moving for feeding, and does not contact the upper surface of the workbench 2 and the lower mold 102, and is exactly located at the air outlet of the air inlet groove 10302; therefore, when moving for feeding, the airflow blown out by the air inlet groove 10302 can not only blow away the dust and hair on the upper surface of the shading sheet 555, but also blow away the dust and hair that enters between the lower surface of the shading sheet 555 and the upper surface of the lower mold 102, thereby greatly improving the cleaning and dustproof effect of the shading sheet 555 and the lower mold 102; when the fixed plate 3 moves downward, the extrusion block 108 will contact the upper surface of the fixed block 103 and squeeze downward The fixed block 103 is pressed, and the second spring 104 is compressed and contracted at this time, and the fixed block 103 moves downward on the workbench 2, so that the shading sheet 555 fits with the lower mold 102, avoiding the height error between the clamping area of ​​the clamping wheel 105 and the upper surface of the lower mold 102, which affects the subsequent stamping; and after the fixed block 103 moves downward, the chamfer of the sponge material on the front side of the squeezed rotating plate 203 is still located below the air outlet groove 10303 and in close contact with the fixed block 103. At this time, the second connecting groove 10603 is connected with the air outlet groove 10303, and the first connecting groove 10602 is not connected with the air outlet groove 10303, so it will not affect the demolding and collection work of the shading sheet; and a rubber layer is provided on the lower side of the extrusion block 108 to reduce the extrusion wear of the extrusion block 108 on the fixed block 103.

[0053] According to the above working principle, we know that the present invention has the following effects:

[0054] In the initial state, the fixed block 103 is lifted up by the second spring 104, so that the shading sheet 555 is suspended when moving for feeding, and does not contact the upper surface of the workbench 2 and the lower mold 102, and is exactly located at the air outlet of the air inlet groove 10302, so that the airflow blown out by the air inlet groove 10302 can not only blow away the dust and hair on the upper surface of the shading sheet 555, but also blow away the dust and hair entering between the lower surface of the shading sheet 555 and the upper surface of the lower mold 102, thereby greatly improving the cleaning and dustproof effect of the shading sheet 555 and the lower mold 102; when the fixed plate 3 moves downward, the fixed block 103 is pressed downward, so that the shading sheet 555 is fitted with the lower mold 102, avoiding the height error between the clamping area of ​​the clamping wheel 105 and the upper surface of the lower mold 102, which affects the subsequent stamping.

[0055] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A punching device for producing a shading sheet with a dustproof function, comprising a punching bed (1), a workbench (2), a fixed plate (3), an upper mold (101) and a lower mold (102); the punching bed (1) is mounted with a workbench (2), and an air intake pipe (2001) is arranged at the front side of the workbench (2); the lower mold (102) is fixedly connected to the workbench (2); the punching bed (1) is fixedly connected to the fixed plate (3) via a first electric push rod; the fixed plate (3) is driven to move up and down by the first electric push rod in the punching bed (1); the lower side of the fixed plate (3) is fixedly connected with the upper mold (101) via a second electric push rod; the upper mold (101) is driven to move up and down by the second electric push rod in the fixed plate (3); the characteristics are: It also includes a fixed block (103), a clamping wheel (105), a sealing block (107) and a cutter (109); the workbench (2) is connected to two fixed blocks (103) symmetrically arranged in front and back for clamping the light-shielding sheet (555); the lower mold (102) is located between the two fixed blocks (103); the left and right sides of each fixed block (103) are rotatably connected to the clamping wheel (105); the fixed block (103) located on the front side of the workbench (2) is provided with an air inlet (10301) and an air inlet groove (10302), the air inlet (10301) and the air inlet groove (10302) being connected; the air inlet (10301) The upper die (102) is connected to the air inlet pipe (2001); the air outlet of the air inlet groove (10302) faces the lower die (102); an air outlet groove (10303) is provided on the fixed block (103) located at the rear side of the workbench (2); a loading groove (1001) is provided in the punching bed (1); the inlet of the loading groove (1001) is located at the rear side of the air outlet groove (10303); a plurality of left-right symmetrical sealing blocks (107) are fixedly connected to the lower side of the fixed plate (3); a plurality of cutters (109) are fixedly connected to the lower side of the upper die (101); and a plurality of stamping grooves (10201) corresponding to the cutters (109) are provided on the upper surface of the lower die (102); The invention also comprises a lower pressing plate (201) and a rotating plate (203); a collecting groove (1002) is provided in the punching bed (1); the lower pressing plate (201) is fixedly connected to the rear side of the fixed plate (3), and a plurality of extrusion parts (20101) are provided on the lower side of the lower pressing plate (201); the rotating plate (203) is rotatably connected to the dust cover (106) via a torsion spring; the rotating plate (203) divides the interior of the dust cover (106) into a first connecting groove (10602) and a second connecting groove (10603); and a plurality of square grooves (10601) are provided on the upper side of the dust cover (106).

2. According to claim 1, a punching device for producing a shading sheet with a dustproof function, characterized in that: The lower side of the sealing block (107) is provided with a sponge block (10701).

3. The punching equipment for producing a shading sheet with dustproof function according to claim 1, characterized in that: It also includes a dust cover (106); the dust cover (106) is fixedly connected to the front side of the feeding port of the charging trough (1001), and the dust cover (106) is fixedly connected to the corresponding fixing block (103).

4. The punching equipment for producing a shading sheet with dustproof function according to claim 1, characterized in that: The front side of the rotating plate (203) is chamfered and provided with a sponge layer.

5. The punching equipment for producing a shading sheet with dustproof function according to claim 1, characterized in that: It also includes a rotating wheel (202); the lower side of each extrusion portion (20101) is rotatably connected to the rotating wheel (202).

6. The punching equipment for producing a shading sheet with dustproof function according to claim 1, characterized in that: It also includes an alarm (110); a plurality of alarms (110) are fixedly connected to the upper side of the fixing plate (3).

7. The punching equipment for producing a shading sheet with dustproof function according to claim 6, characterized in that: The alarm (110) is electrically connected to the emergency stop switch of the punching machine (1).

8. The punching equipment for producing a shading sheet with dustproof function according to claim 1, characterized in that: It also includes a second spring (104) and an extrusion block (108); a second spring (104) is fixedly connected between each fixed block (103) and the workbench (2); the fixed block (103) is slidably connected to the workbench (2); a plurality of extrusion blocks (108) are arranged on the lower side of the fixed plate (3); and the upper surface of the lower mold (102) is lower than the upper vertex position of the lower clamping wheel (105).

9. The punching equipment for producing a shading sheet with dustproof function according to claim 8, characterized in that: A rubber layer is provided on the lower side of the extrusion block (108).

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