CN114103071B - Plastic cover punching device for plastic cup processing and processing method thereof - Google Patents

Abstract

The invention relates to the field of plastic cup production, in particular to a plastic cover punching device for plastic cup processing and a processing method thereof. The technical problem is as follows: when the punching knife and the punch oppositely punch the plastic cover, the punched plastic cover is easy to have the phenomenon that the structure is punched and deformed. The technical scheme is as follows: a mould cover punching device for processing a plastic cup and a processing method thereof comprise a punching unit, a gear unit and the like; the left side of the punching unit is connected with a gear unit. This technical scheme has following advantage, between punching and cutting knife and collecting vessel, baffle parts have been introduced, punching and cutting knife and drift are carrying out die-cut during operation to moulding the lid, baffle parts can provide the holding power to the top of moulding the lid, the die-cut apical structure who moulds the lid that obtains of realization possess the uniformity of height, be equipped with cardboard parts in collecting vessel inside in addition, avoid by the lid of moulding of punching, serious deformation appears in next a set of die-cut work, the work efficiency and the yields of lid production are moulded in the improvement.

Description

Plastic cover punching device for plastic cup processing and processing method thereof

Technical Field

The invention relates to the field of plastic cup production, in particular to a plastic cover punching device for plastic cup processing and a processing method thereof.

Background

In the plastic cover production process assembled on the plastic cup, the preliminary shape of the plastic cover needs to be formed by hot pressing on a plastic raw material through hot pressing equipment in advance, then a punch located on the upper side and a blanking knife located on the lower side are used for mutually matching, the punch and the blanking knife are controlled through the punching equipment, the area of the plastic cover in the shape is formed by hot pressing on the plastic raw material is subjected to punching, the plastic cover is punched and cut off from the plastic raw material, a collecting barrel is further arranged below the blanking knife, the punched plastic cover is stacked in the collecting barrel, subsequent uniform unloading is realized, and the unloading time in the plastic cover production process is saved.

Because the design is link up with the collecting vessel to the punching cutter, consequently, the top and the bottom of punching cutter are non-confined closed loop structure, when punching the lid of moulding in opposite directions, there is not the holding power by the punching the lid top of moulding that cuts, and the phenomenon of hunch-up easily appears, the structure that leads to moulding the lid appears more obvious nonconformity, in addition, because the drift resets after accomplishing the die-cut work of moulding the lid, by the lid of moulding in the collecting vessel of punching, the drift phenomenon appears in the easy follow drift rebound of drift, lead to the drift to carry out the during operation once more, the lid punching press deformation that moulds that the skew will appear easily.

Disclosure of Invention

The invention provides a plastic cover punching device for plastic cup processing and a processing method thereof, aiming at overcoming the defect that the punched plastic cover is easy to have the phenomenon of punching deformation of a structure when a punching cutter and a punch press perform punching work on the plastic cover oppositely.

The technical scheme is as follows: a plastic cover punching device for processing a plastic cup comprises a punching die unit, a punching unit, a gear unit, a main trigger unit, a bottom support platform, a top cross beam frame, conveying equipment and a collecting box; the upper front part and the upper rear part of the bottom support platform are respectively fixedly connected with a top cross beam frame; the left side of the bottom support platform is fixedly connected with conveying equipment; a collecting box is arranged on the right side of the bottom support platform; the lower part of the left side of the bottom bracket platform is connected with a die punching unit for punching and demoulding; the upper side of the top cross beam frame is connected with a punching unit for punching and cutting the plastic cover; the left side of the punching unit is connected with a gear unit for assisting in molding the plastic cover; the upper side of the punching unit is connected with a main trigger unit for triggering the gear unit to work; the lower side of the main trigger unit is connected with a gear unit.

As a further preferable scheme, the conveying equipment comprises a supporting plate, an electric sliding rail, a sliding block bracket and a push plate; the front part of the left side of the bottom support platform is fixedly connected with a support plate; two electric slide rails are fixedly connected to the rear part of the left side of the bottom support platform; the rear sides of the two electric slide rails are respectively connected with a slide block bracket in a sliding way; the upper ends of the two sliding block brackets are respectively fixedly connected with an electric clamping plate.

As a further preferable mode, the die unit includes a lower punch member and a punch; the lower part of the left side of the bottom bracket platform is fixedly connected with a lower stamping part; the upper push rod part of the lower punching part is fixedly connected with a punch.

As a further preferable scheme, the punching unit comprises a slide rail, an electric slide block, a first fixed frame, an upper punching part, a sleeve, a punching knife, a loop bar, a clamping plate and a first torsion spring; the upper sides of the two top cross beam frames are respectively fixedly connected with a sliding rail; the left sides of the two sliding rails are respectively connected with an electric sliding block in a sliding manner; a first fixing frame is fixedly connected between the two electric sliding blocks; the inner side of the first fixed frame is fixedly connected with an upper stamping part; the lower push rod part of the upper punching part is fixedly connected with a sleeve; a punching knife is fixedly connected to the lower side of the sleeve; the front part of the inner lower side and the rear part of the inner lower side of the sleeve are respectively and rotatably connected with a loop bar; the upper sides of the two loop bars are respectively fixedly connected with a clamping plate; a first torsion spring is fixedly connected between the left side and the right side of the clamping plate and the sleeve respectively, and the first torsion spring is sleeved on the outer surface of the sleeve rod; the sleeve is connected with the gear unit; the first fixing frame is connected with the main trigger unit; the left part of the lower side of the sleeve is provided with a notch.

As a further preferable scheme, the gear unit comprises a second fixed frame, a first fixed block, a rotating shaft, a telescopic arm, a second torsion spring, a fixed rod, a baffle, a side sliding rod, a first fixed ring, a side arm and a shifting block; two second fixing frames are fixedly connected to the upper part of the left side of the sleeve; a first fixing block is fixedly connected between the lower sides of the two second fixing frames; the inner part of the first fixed block is rotatably connected with a rotating shaft; the front side and the rear side of the rotating shaft are respectively fixedly connected with a telescopic arm; a second torsion spring is fixedly connected between the inner sides of the two telescopic arms and the first fixed block respectively, and the second torsion spring is sleeved on the outer surface of the rotating shaft; a fixed rod is rotatably connected between the lower telescopic ends of the two telescopic arms through a rotating shaft; the right side of the fixed rod is fixedly connected with a baffle; the front side and the rear side of the baffle are respectively fixedly connected with a side sliding rod; the lower part of the outer ring surface of the sleeve is fixedly connected with a first fixing ring; a side arm is fixedly connected to the front side and the rear side of the first fixing ring respectively; the two side sliding rods are respectively connected with one adjacent side arm in a sliding manner; the right sides of the upper ends of the two telescopic arms are fixedly connected with a shifting block respectively; the shifting block is connected with the main trigger unit.

As a further preferable scheme, the right side of the baffle is of a cambered surface structure.

As a further preferable scheme, the main trigger unit comprises a fixed support arm and a limiting rod; the front part of the lower side of the first fixing frame and the rear part of the lower side of the first fixing frame are respectively fixedly connected with a fixing support arm; a limiting rod is fixedly connected between the lower ends of the two fixed support arms; both the shifting blocks contact the limiting rod.

As a further preferable scheme, the device further comprises a discharging unit, wherein the discharging unit is arranged on the first fixing ring and comprises a second fixing block, a first lifting part and a push plate; a second fixed block is fixedly connected to the right side of the first fixed ring; a first lifting component is fixedly connected to the upper side of the second fixed block; the upper side in the sleeve is connected with a push plate in a sliding way; the upper lifting end of the first lifting part is fixedly connected with the push plate.

As a further preferable scheme, the device further comprises an auxiliary triggering unit, wherein the auxiliary triggering unit is arranged on the right side of the bottom support platform and comprises a third fixing frame, a second lifting part, a second fixing ring and a triggering plate; a third fixing frame is fixedly connected to the right side of the bottom support table; the front part of the left side of the third fixing frame and the rear part of the left side of the third fixing frame are respectively fixedly connected with a second lifting part; a second fixing ring is fixedly connected between the upper lifting ends of the two second lifting parts; the front part of the inner side surface of the second fixing ring and the rear part of the inner side surface of the second fixing ring are respectively fixedly connected with a trigger plate.

A processing method of a plastic cover punching device for processing a plastic cup comprises the following working steps:

s1: hot-press molding, namely hot-pressing the plastic raw material into the shape of a plastic cover by hot-press equipment;

s2: punching, namely controlling a punch and a blanking knife through punching equipment, punching an area with the shape of the plastic cover on the plastic raw material in a hot pressing mode, and providing a supporting force for the top of the plastic cover through a baffle plate so that the plastic cover is punched and cut out of the plastic raw material;

s3: filling, namely filling and stacking the punched plastic cover in a collecting cylinder arranged above a punching knife, and clamping the plastic cover through a clamping plate to prevent the plastic cover from falling from the collecting cylinder;

s4: and (4) collecting, namely collecting the plastic cover filled in the collecting cylinder into the collecting box at one time.

Has the beneficial effects that: between blanking sword and collecting vessel, baffle parts has been introduced, blanking sword and drift are carrying out die-cut during operation to moulding the lid, baffle parts can provide the holding power to the top of moulding the lid, the top structure of moulding the lid that realizes die-cut obtaining possesses the uniformity of height, be equipped with cardboard parts in collecting vessel inside in addition, every is moulded the lid and is accomplishing die-cut work back, because of being blocked by the inside cardboard parts of collecting vessel, and be difficult for following the drift and remove the skew of appearing, avoid being stamped the lid of moulding of cutting out, serious deformation phenomenon appears in the die-cut work of next set of, the work efficiency of lid production and the yields of product are moulded in the improvement.

Drawings

FIG. 1 is a schematic perspective view of a first plastic cap punching apparatus;

FIG. 2 is a schematic partial perspective view of the plastic cap punching apparatus;

FIG. 3 is a schematic perspective view of a die unit of the plastic cap punching device;

FIG. 4 is a schematic diagram of a first three-dimensional structure of a gear unit of the plastic cover punching device;

FIG. 5 is an enlarged view of the die-cutting device for plastic caps in area C;

FIG. 6 is a schematic diagram of a second three-dimensional structure of a gear unit of the plastic cap punching device;

FIG. 7 is a schematic perspective view of a discharge unit of the present apparatus for die-cutting plastic caps;

FIG. 8 is a schematic perspective view of an auxiliary trigger unit of the plastic cap punching device;

fig. 9 is a schematic perspective view of a second plastic cap punching device.

Reference numerals: 1-bottom support table, 2-top cross beam frame, 3-conveying device, 4-collecting box, 31-supporting plate, 32-electric slide rail, 33-slide block support, 34-electric clamping plate, 101-lower punching component, 102-punch head, 201-slide rail, 202-electric slide block, 203-first fixing frame, 204-upper punching component, 205-sleeve, 206-punching cutter, 207-sleeve rod, 208-clamping plate, 209-first torsion spring, 301-second fixing frame, 302-first fixing block, 303-rotating shaft, 304-telescopic arm, 305-second torsion spring, 306-fixing rod, 307-baffle plate, 308-side slide rod, 309-first fixing ring, 310-side arm, 311-shifting block, 401-fixed support arm, 402-limiting rod, 501-second fixed block, 502-first lifting part, 503-push plate, 601-third fixed frame, 602-second lifting part, 603-second fixed ring and 604-trigger plate.

Detailed Description

The invention is further described in the following examples, which are intended to illustrate, unless otherwise explicitly stated or limited, terms such as: the arrangement, installation, connection are to be understood broadly, for example, they may be fixed, detachable, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the embodiment of the present invention, the lower punching member 101 and the upper punching member 204 are both referred to as a cylinder, and the first elevation member 502 and the second elevation member 602 are both referred to as an electric push rod.

Example 1

A plastic cover punching device for processing a plastic cup is shown in figures 1-2 and comprises a punching die unit, a punching unit, a gear unit, a main trigger unit, a bottom support platform 1, a top cross beam frame 2, a conveying device 3 and a collecting box 4; the upper front part and the upper rear part of the bottom support platform 1 are respectively fixedly connected with a top cross beam frame 2; the left side of the bottom support table 1 is fixedly connected with a conveying device 3; a collecting box 4 is arranged on the right side of the bottom bracket platform 1; the lower part of the left side of the bottom bracket table 1 is connected with a die punching unit; the upper side of the top cross beam frame 2 is connected with a punching unit; the left side of the punching unit is connected with a gear unit; the upper side of the punching unit is connected with a main trigger unit; the lower side of the main trigger unit is connected with a gear unit.

As shown in fig. 2, the conveying device 3 includes a support plate 31, an electric slide rail 32, a slide bracket 33, and an electric clamp plate 34; the front part of the left side of the bottom bracket platform 1 is connected with a supporting plate 31 through a bolt; two electric slide rails 32 are fixedly connected to the rear part of the left side of the bottom bracket platform 1; the rear sides of the two electric slide rails 32 are respectively connected with a slide block bracket 33 through an electric slide block in a sliding way; the upper ends of the two sliding block brackets 33 are respectively fixedly connected with an electric clamping plate 34.

As shown in fig. 3, the die unit includes a lower punch member 101 and a punch 102; the lower part of the left side of the bottom bracket platform 1 is connected with a lower stamping part 101 through a bolt; a punch 102 is fixed to an upper ram member of the lower punch member 101.

As shown in fig. 3-5, the punching unit includes a slide rail 201, an electric slider 202, a first fixing frame 203, an upper punching component 204, a sleeve 205, a punching blade 206, a loop bar 207, a catch plate 208 and a first torsion spring 209; the upper sides of the two top cross beam frames 2 are respectively fixedly connected with a slide rail 201; the left sides of the two sliding rails 201 are respectively connected with an electric sliding block 202 in a sliding manner; a first fixing frame 203 is connected between the two electric sliding blocks 202 through bolts; an upper punching component 204 is bolted on the inner side of the first fixing frame 203; a sleeve 205 is fixedly connected to the lower push rod part of the upper punching part 204; a punching knife 206 is fixedly connected to the lower side of the sleeve 205; a sleeve rod 207 is rotatably connected to the front part of the inner lower side and the rear part of the inner lower side of the sleeve 205; the upper sides of the two loop bars 207 are respectively fixedly connected with a clamping plate 208; a first torsion spring 209 is fixedly connected between the left side and the right side of the clamping plate 208 and the sleeve 205 respectively, and the first torsion spring 209 is sleeved on the outer surface of the sleeve rod 207; the sleeve 205 is connected with a gear unit; the first fixing frame 203 is connected with the main trigger unit; the left part of the lower side of the sleeve 205 is notched.

As shown in fig. 4 and 6, the gear unit includes a second fixing frame 301, a first fixing block 302, a rotating shaft 303, a telescopic arm 304, a second torsion spring 305, a fixing rod 306, a baffle 307, a side sliding rod 308, a first fixing ring 309, a side arm 310 and a shifting block 311; two second fixing frames 301 are connected to the upper part of the left side of the sleeve 205 through bolts; a first fixing block 302 is fixedly connected between the lower sides of the two second fixing frames 301; a rotating shaft 303 is rotatably connected inside the first fixing block 302; a telescopic arm 304 is fixedly connected to the front side and the rear side of the rotating shaft 303 respectively; a second torsion spring 305 is fixedly connected between the inner sides of the two telescopic arms 304 and the first fixing block 302, and the second torsion spring 305 is sleeved on the outer surface of the rotating shaft 303; a fixed rod 306 is rotatably connected between the lower telescopic ends of the two telescopic arms 304 through a rotating shaft 303; a baffle 307 is fixedly connected to the right side of the fixed rod 306; the front side and the rear side of the baffle 307 are respectively connected with a side sliding rod 308 through bolts; a first fixing ring 309 is welded to the lower portion of the outer circumferential surface of the sleeve 205; a side arm 310 is fixedly connected to each of the front and rear sides of the first fixing ring 309; the two side sliding rods 308 are respectively connected with one side arm 310 adjacent to each other in a sliding manner; the right sides of the upper ends of the two telescopic arms 304 are respectively fixedly connected with a shifting block 311; the shifting block 311 is connected with the main trigger unit; the right side of the baffle 307 is of a cambered surface structure.

As shown in fig. 4 and 6, the main trigger unit includes a fixed arm 401 and a limit rod 402; a fixed support arm 401 is connected to each bolt at the front part of the lower side and the rear part of the lower side of the first fixing frame 203; a limiting rod 402 is fixedly connected between the lower ends of the two fixed support arms 401; both of the two shift blocks 311 contact the stopper rod 402.

Firstly, a preliminary shape of a plastic cover is hot-pressed on a plastic raw material in advance through an external hot-pressing device, then the plastic raw material which is subjected to hot-pressing pretreatment is conveyed to a position between a left electric clamping plate 34 and a right electric clamping plate 34 and the upper surface of a supporting plate 31, then the two electric clamping plates 34 are respectively clamped at the left side and the right side of the plastic raw material, then a slide block bracket 33 drives the electric clamping plates 34 to move towards the supporting plate 31 along an electric slide rail 32, a region which is subjected to the hot-pressing operation in the plastic raw material is conveyed to a position between a punch 102 and a blanking knife 206, then the electric clamping plates 34 loosen the plastic raw material, meanwhile, the slide block bracket 33 drives the electric clamping plates 34 to reversely move and reset along the electric slide rail 32, then the steps are repeated, the region which is subjected to the hot-pressing operation in the plastic raw material is sequentially conveyed to a position between the punch 102 and the blanking knife 206 by a lower punching part 101 to upwards push the punch 102, the upper punching member 204 pushes the sleeve 205 and the punching blade 206 downward to perform the plastic cap punching work on the area of the plastic log where the preliminary hot pressing work is completed.

The upper punching part 204 drives the gear unit to move downwards while pushing the sleeve 205 and the punching blade 206 to move downwards, so that the downward moving shifting block 311 is blocked by the limiting rod 402, and drives the telescopic arm 304 and the second torsion spring 305 to rotate around the axis of the rotating shaft 303, and meanwhile, the rotating telescopic arm 304 pushes the fixed rod 306, the baffle 307 and the side sliding rod 308 through the rotating shaft 303, and moves towards the sleeve 205 along the side arm 310, so that the baffle 307 moving towards the right is inserted into the sleeve 205 from the notch at the left part of the lower side of the sleeve 205, when the punch 102 and the punching blade 206 perform punching work on the plastic cover, the baffle 307 provides enough upper supporting force for the top of the plastic cover, and the top structure of the punched plastic cover has high consistency.

After completing the punching of a set of plastic covers, the lower punching part 101 drives the punch 102 to reset downwards, the upper punching part 204 continues to push the sleeve 205 and the punching blade 206 downwards, after the shifting block 311 which continues to move downwards leaves the limiting rod 402, the twisted second torsion spring 305 drives the telescopic arm 304 to rotate reversely and reset, so that the telescopic arm 304 pulls the fixed rod 306, the baffle 307 and the side sliding rod 308 through the rotating shaft 303 to move reversely along the side arm 310 and leave the inside of the sleeve 205, after the lower punching part 101 drives the punch 102 to reset and stop moving, the sleeve 205 drives the punched plastic cover to move downwards continuously, so that the plastic cover which moves downwards is pushed into the sleeve 205 by the stationary punch 102, when the plastic cover passes through the clamping plate 208, the plastic cover which moves upwards pushes the clamping plate 208 to turn around the axis of the sleeve rod 207 in the direction close to the inner wall of the sleeve 205, and the first torsion spring 209 is twisted at the same time, after the plastic cover moving upwards leaves the clamping plate 208 and enters the sleeve 205, the clamping plate 208 at the top end of the twisted first torsion spring 209 turns around the axis of the sleeve rod 207 to reset, and the plastic cover positioned in the sleeve 205 is clamped by the reset clamping plate 208, so that when the upper punching part 204 drives the sleeve 205 and the punching knife 206 to reset upwards and leaves the punch 102, the plastic cover in the sleeve 205 is clamped by the clamping plate 208 and cannot fall off, and therefore the phenomenon that the punched plastic cover is seriously deformed in the punching operation of the next group is avoided.

After the plastic covers in the areas where the pre-hot pressing work is completed in the plastic raw material are sequentially punched according to the steps, when a specified number of plastic covers are filled in the sleeve 205, the plastic covers in the sleeve 205 begin to be unloaded, firstly, the electric slider 202 moves rightwards along the slide rail 201 to enable the sleeve 205 to be positioned above the collecting box 4, then, an operator manually or through an external unloading device pushes the two clamping plates 208 to turn around the axis of the sleeve rod 207 towards the direction close to the inner wall of the sleeve 205, so that after the clamping plates 208 loosen the plastic covers, the plastic covers filled in the sleeve 205 fall into the collecting box 4, and the plastic cover collecting work is completed.

Example 2

As shown in fig. 1-2 and 7, on the basis of embodiment 1, the device further includes a discharging unit, the first fixing ring 309 is provided with the discharging unit, and the discharging unit includes a second fixing block 501, a first lifting member 502 and a pushing plate 503; a second fixing block 501 is fixedly connected to the right side of the first fixing ring 309; a first lifting component 502 is connected to the upper side of the second fixing block 501 through bolts; the push plate 503 is connected with the inner upper side of the sleeve 205 in a sliding way; the upper lifting end of the first lifting member 502 is fixedly connected to the pushing plate 503.

As shown in fig. 7-8, the portable electronic device further comprises an auxiliary triggering unit, the right side of the bottom support stand 1 is provided with the auxiliary triggering unit, and the auxiliary triggering unit comprises a third fixing frame 601, a second lifting component 602, a second fixing ring 603 and a triggering plate 604; the right side of the bottom bracket table 1 is connected with a third fixing frame 601 through a bolt; a second lifting part 602 is connected to each bolt of the front part and the rear part of the left side of the third fixing frame 601; a second fixing ring 603 is bolted between the upper lifting ends of the two second lifting members 602; a trigger plate 604 is bolted to each of the front portion of the inner side surface and the rear portion of the inner side surface of the second fixing ring 603.

In this embodiment, further describing the collection operation of the plastic cover contained in the sleeve 205, first, the electric slider 202 moves rightward along the sliding rail 201, so that the sleeve 205 is located above the collection box 4, and the two clamping plates 208 are aligned with the two trigger plates 604, then the upper lifting end of the second lifting part 602 pushes the second fixing ring 603 and the trigger plate 604 to move upward, so that the two trigger plates 604 moving upward push the two clamping plates 208, respectively, to turn around the axis of the loop bar 207 toward the direction close to the inner wall of the sleeve 205, and then the upper lifting end of the first lifting part 502 drives the push plate 503 to move downward along the inner wall of the sleeve 205, so that after the clamping plates 208 release the plastic cover, the push plate 503 pushes the plastic cover downward, so that the plastic cover contained in the sleeve 205 falls into the collection box 4, and the collection operation of the plastic cover is completed.

Example 3

On the basis of embodiment 2, as shown in fig. 9, a plurality of sets of die units, punching units, gear units, main trigger units and discharge units are arranged on the left sides of the bottom support platform 1 and the top cross beam frame 2, auxiliary trigger units and collecting boxes 4 which are the same in number as the die units are arranged on the right side of the bottom support platform 1, and the sets of die units, punching units, gear units, main trigger units, discharge units and auxiliary trigger units are arranged in a straight line from left to right.

Firstly, transversely and thermally extruding plastic raw materials in advance through external hot pressing equipment, conveying the plastic raw materials to the positions between each group of punch heads 102 and blanking knives 206 to enable each region completing the pre-hot pressing work in the plastic raw materials to respectively correspond to one group of punch heads 102 and blanking knives 206 by the conveying equipment 3, and performing plastic cover punching work on the plastic raw materials according to the steps to realize synchronous plastic cover punching work on the plastic raw materials by the plurality of groups of punch heads 102 and the blanking knives 206.

A processing method of a plastic cover punching device for processing a plastic cup comprises the following working steps:

s1: hot-press molding, namely hot-pressing the plastic raw material into the shape of a plastic cover by hot-press equipment;

s2: punching, namely controlling a punch and a blanking knife through punching equipment, punching an area with the shape of the plastic cover on the plastic raw material in a hot pressing mode, and providing a supporting force for the top of the plastic cover through a baffle plate so that the plastic cover is punched and cut out of the plastic raw material;

s3: filling, namely filling and stacking the punched plastic cover in a collecting cylinder arranged above a blanking knife, and clamping the plastic cover by a clamping plate to prevent the plastic cover from falling from the collecting cylinder;

s4: and (4) collecting, namely collecting the plastic cover filled in the collecting cylinder into the collecting box at one time.

It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Claims (6)

1. A plastic cover punching device for processing a plastic cup comprises a bottom support platform (1), a top cross beam frame (2), a conveying device (3) and a collecting box (4); the upper front part and the upper rear part of the bottom support platform (1) are respectively fixedly connected with a top cross beam frame (2); the left side of the bottom support table (1) is fixedly connected with a conveying device (3); a collecting box (4) is arranged on the right side of the bottom support platform (1); the punching device is characterized by also comprising a punching die unit, a punching unit, a gear unit and a main trigger unit; the lower part of the left side of the bottom bracket table (1) is connected with a die punching unit for punching a die; the upper side of the top cross beam frame (2) is connected with a punching unit for punching and cutting the plastic cover; the left side of the punching unit is connected with a gear unit for assisting in molding the plastic cover; the upper side of the punching unit is connected with a main trigger unit for triggering the gear unit to work; the lower side of the main trigger unit is connected with a gear unit;

the die unit comprises a lower punching component (101) and a punch (102); the lower part of the left side of the bottom bracket table (1) is fixedly connected with a lower stamping part (101); a punch (102) is fixedly connected to an upper push rod part of the lower punching part (101);

the punching unit comprises a slide rail (201), an electric slide block (202), a first fixing frame (203), an upper punching component (204), a sleeve (205), a punching knife (206), a loop bar (207), a clamping plate (208) and a first torsion spring (209); the upper sides of the two top cross beam frames (2) are respectively fixedly connected with a sliding rail (201); the left sides of the two sliding rails (201) are respectively connected with an electric sliding block (202) in a sliding way; a first fixing frame (203) is fixedly connected between the two electric sliding blocks (202); an upper punching component (204) is fixedly connected to the inner side of the first fixing frame (203); a sleeve (205) is fixedly connected to the lower push rod part of the upper stamping part (204); a punching knife (206) is fixedly connected to the lower side of the sleeve (205); the front part of the inner lower side and the rear part of the inner lower side of the sleeve (205) are respectively and rotatably connected with a sleeve rod (207); the upper sides of the two loop bars (207) are respectively fixedly connected with a clamping plate (208); a first torsion spring (209) is fixedly connected between the left side and the right side of the clamping plate (208) and the sleeve (205), and the first torsion spring (209) is sleeved on the outer surface of the sleeve rod (207); the sleeve (205) is connected with the gear unit; the first fixing frame (203) is connected with the main trigger unit; the left part of the lower side of the sleeve (205) is provided with a notch;

the gear unit comprises a second fixed frame (301), a first fixed block (302), a rotating shaft (303), a telescopic arm (304), a second torsion spring (305), a fixed rod (306), a baffle (307), a side sliding rod (308), a first fixed ring (309), a side arm (310) and a shifting block (311); two second fixing frames (301) are fixedly connected to the upper part of the left side of the sleeve (205); a first fixed block (302) is fixedly connected between the lower sides of the two second fixed frames (301); a rotating shaft (303) is rotatably connected inside the first fixed block (302); the front side and the rear side of the rotating shaft (303) are respectively fixedly connected with a telescopic arm (304); a second torsion spring (305) is fixedly connected between the inner sides of the two telescopic arms (304) and the first fixed block (302), and the second torsion spring (305) is sleeved on the outer surface of the rotating shaft (303); a fixed rod (306) is rotatably connected between the lower telescopic ends of the two telescopic arms (304) through a rotating shaft (303); a baffle (307) is fixedly connected to the right side of the fixed rod (306); a side sliding rod (308) is fixedly connected to the front side and the rear side of the baffle (307) respectively; a first fixing ring (309) is fixedly connected to the lower part of the outer ring surface of the sleeve (205); the front side and the rear side of the first fixing ring (309) are fixedly connected with a side arm (310) respectively; the two side sliding rods (308) are respectively connected with one adjacent side arm (310) in a sliding manner; the right sides of the upper ends of the two telescopic arms (304) are respectively fixedly connected with a shifting block (311); the shifting block (311) is connected with the main trigger unit;

the main trigger unit comprises a fixed support arm (401) and a limiting rod (402); the front part of the lower side of the first fixing frame (203) and the rear part of the lower side are respectively fixedly connected with a fixing support arm (401); a limiting rod (402) is fixedly connected between the lower ends of the two fixed support arms (401); the two shifting blocks (311) are both contacted with the limiting rod (402).

2. The plastic cover punching device for processing the plastic cup as claimed in claim 1, wherein the conveying device (3) comprises a supporting plate (31), an electric sliding rail (32), a sliding block bracket (33) and an electric clamping plate (34); a supporting plate (31) is fixedly connected to the front part of the left side of the bottom support table (1); two electric slide rails (32) are fixedly connected to the rear part of the left side of the bottom support table (1); a sliding block bracket (33) is respectively arranged at the rear sides of the two electric sliding rails (32) in a sliding way; the upper ends of the two sliding block brackets (33) are respectively fixedly connected with an electric clamping plate (34).

3. A device for blanking a plastic cap for processing a plastic cup as claimed in claim 2, wherein the right side of the baffle plate (307) has a cambered surface structure.

4. The plastic cap punching device for processing the plastic cup as claimed in claim 3, further comprising a discharging unit, wherein the first fixing ring (309) is provided with the discharging unit, and the discharging unit comprises a second fixing block (501), a first lifting part (502) and a pushing plate (503); a second fixed block (501) is fixedly connected to the right side of the first fixed ring (309); a first lifting component (502) is fixedly connected to the upper side of the second fixed block (501); the inner upper side of the sleeve (205) is connected with a push plate (503) in a sliding way; the upper lifting end of the first lifting component (502) is fixedly connected with the push plate (503).

5. The plastic cover punching device for processing the plastic cup as claimed in claim 4, further comprising an auxiliary triggering unit, wherein the auxiliary triggering unit is arranged on the right side of the bottom support stand (1), and comprises a third fixing frame (601), a second lifting component (602), a second fixing ring (603) and a triggering plate (604); a third fixing frame (601) is fixedly connected to the right side of the bottom support platform (1); a front part on the left side and a rear part on the left side of the third fixing frame (601) are respectively fixedly connected with a second lifting component (602); a second fixing ring (603) is fixedly connected between the upper lifting ends of the two second lifting parts (602); the front part of the inner side surface of the second fixing ring (603) and the rear part of the inner side surface are respectively fixedly connected with a trigger plate (604).

6. A processing method of a plastic cover punching device for processing a plastic cup is characterized in that: the method uses the plastic cover punching device for plastic cup processing according to any one of claims 1 to 5, and comprises the following working steps:

s1: hot-press molding, namely hot-pressing the plastic raw material into the shape of a plastic cover by hot-press equipment;

s2: punching, namely controlling a punch and a punching knife through punching equipment, punching the area with the shape of the plastic cover hot-pressed on the plastic raw material, and providing a supporting force for the top of the plastic cover through a baffle plate to punch and cut the plastic cover from the plastic raw material;

s3: filling, namely filling and stacking the punched plastic cover in a collecting cylinder arranged above a blanking knife, and clamping the plastic cover by a clamping plate to prevent the plastic cover from falling from the collecting cylinder;

s4: and (4) collecting, namely collecting the plastic cover filled in the collecting cylinder into the collecting box at one time.

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