CN210525204U

CN210525204U - Automatic cutting device for plastic forming sheet

Info

Publication number: CN210525204U
Application number: CN201921391197.0U
Authority: CN
Inventors: 冯国强
Original assignee: Quanzhou Jinlin High New Environmental Protection Material Co ltd
Current assignee: Quanzhou Jinlin High New Environmental Protection Material Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-15
Anticipated expiration: 2029-08-26

Abstract

The utility model relates to a plastic sheet processing equipment field, concretely relates to device is tailor in automation for plastics shaping sheet, including blank subassembly, pressure material subassembly, detecting element and feeding unit. The utility model discloses the position with the last cutting edge of blank subassembly and lower sword contact processes into sharp blade, goes up the cutting edge and is the high slope form of the low other end of one end and forms certain contained angle with the lower sword. By utilizing the principle of shearing by the scissors, the punching of the plastic sheet by the upper and lower cutters is changed into staggered shearing of the upper and lower blades, so that the problems that the plastic sheet is difficult to cut or the edge is not neat because the upper and lower cutters are not flat and can not be completely attached in the traditional punching mode and the problems that rigid punching is easy to break and the blades are worn are solved; meanwhile, the automatic length fixing during cutting is realized by utilizing photoelectric detection. The utility model discloses can solve the plastic sheet tradition and tailor the mode and cut the quality unstable, because of tipping and wearing and tearing cost of maintenance are high, inefficiency, cut the low scheduling problem of qualification rate.

Description

Automatic cutting device for plastic forming sheet

Technical Field

The utility model relates to a plastic sheet processing equipment field, concretely relates to device is tailor in automation for plastic molding sheet.

Background

The products produced by automatic plastic sheet production lines are often given lengths of fixed width rolls or continuous lengths. Before the materials are processed into bags or other finished products with different shapes, the coiled materials or long materials need to be cut into fixed lengths according to set lengths. The existing cutting modes comprise manual cutting, automatic transverse cutting, online blanking and the like, but the manual cutting and the automatic transverse cutting have low cutting efficiency, the cut edges cannot be neat, the cutting quality is unstable, and in addition, the manual length fixing has low efficiency; although some cutters are transversely punched by external power at present, the upper blade and the lower blade anvil are parallel, and the upper blade is directly punched on a rigid plane of the lower blade anvil, so that the upper blade is easy to break and wear, the blade is frequently required to be frequently polished or replaced, and the cut edge cannot be neat due to the break and the wear of the blade, so that the problems of low production efficiency, high maintenance cost, low cutting qualified rate and the like are caused.

SUMMERY OF THE UTILITY MODEL

For overcoming not enough among the prior art, the utility model discloses a device is tailor in automation for plastic molding sheet, including blank subassembly, pressure material subassembly, detecting element and feeding unit. The utility model discloses the last cutting edge with the lower sword contact site with blank subassembly processes into sharp blade, goes up the cutting edge blade and is the high slope form of the low other end of one end and forms certain contained angle with the lower sword at length direction. By utilizing the principle of shearing by the scissors, the upper and lower blades do not need to be in full line contact during blanking, so that the problem that plastic sheets are difficult to cut or the cut edges are not neat because the upper and lower blades are not flat and cannot be completely attached is solved; meanwhile, the upper and lower blades are used for shearing in a staggered manner, so that the problem that the upper blade is easy to break and wear due to the fact that the upper blade is directly punched on a rigid plane of a lower knife anvil is solved; in addition, the photoelectric switch arranged at the cutting discharge end is utilized to realize the automatic fixed length cutting of the plastic sheet and improve the production efficiency. The utility model discloses can solve the plastic sheet tradition and tailor the mode and cut the quality unstable, because of tipping and wearing and tearing cost of maintenance are high, inefficiency, cut the low scheduling problem of qualification rate.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an automatic device of tailorring for plastic molding sheet, includes plastic sheet, material feeding unit, liquid gas supply controlling part and electrical system, its characterized in that: the cutting assembly comprises an upper knife and a lower knife, the contact part of the upper knife and the lower knife is processed into a sharp cutting edge, the cutting edge and the cutting edge surface are straight lines and planes which are precisely processed, the cutting edge of the upper knife is inclined in the length direction with the left end low and the right end high and forms a plurality of included angles with the cutting edge of the lower knife, the cutting assembly further comprises a power cylinder, a knife beam and a sliding seat, the power cylinder and the sliding seat are respectively provided with one piece on the left and right, two ends of the knife beam are hinged on a cylinder rod of the power cylinder and can respectively insert into the sliding seats provided with sliding grooves to slide up and down, the upper knife is locked on the knife beam, the lower knife is locked on the horizontal plate surface of the frame, the cutting edge surface of the upper knife is fully attached to the cutting edge surface of the corresponding lower knife when the upper knife slides down to cut plastic sheets, and the pressing assembly comprises a pressing block, a pressing block and a pressing block, The plastic sheet which is not cut penetrates between the pressing block and the pad anvil in a belt shape, simultaneously penetrates between the upper knife and the lower knife and is arranged on the equal-height surfaces of the pad anvil and the lower knife.

The power cylinder and the material pressing cylinder are respectively locked on the main beam, two ends of the main beam are locked on the upper end of the sliding seat, and the lower end of the sliding seat is locked with the rack.

The detection elements are a left photoelectric switch and a right photoelectric switch which are respectively arranged at the left side and the right side of the discharge end of the feeding unit, and the horizontal distance between the probe of the photoelectric switch and the cutting edge of the upper knife is equal to the length of the cut plastic sheet.

The feeder group include feeding conveyer and discharge conveyor, arrange the feed end and the discharge end of blank subassembly, pressure material subassembly respectively in, the plastics sheet is placed and is realized feeding and ejection of compact on its conveyer belt.

The power cylinder is an oil cylinder or an air cylinder, preferably the air cylinder, and the material pressing cylinder is an air cylinder.

The pressing block and the pad anvil are machined parts made of nylon or polyurethane materials, and the nylon materials are preferably machined.

The hydraulic-pneumatic control assembly comprises a hydraulic oil path assembly and a pneumatic path assembly, wherein the hydraulic oil path assembly and the pneumatic path assembly respectively comprise a plurality of electromagnetic directional valves and pipe connecting pieces, and the electromagnetic directional valves and the pipe connecting pieces are respectively connected with the power cylinder or the material pressing cylinder in series.

The material cutting component, the material pressing component, the detection element and the execution motor or the electric execution component of the feeding unit are all connected in series with the electric control system.

According to the above description, the utility model provides a pair of a device is tailor in automation for plastic forming sheet, with the position processing of last cutting edge and lower sword contact sharp blade, go up the cutting edge and be the slope form that one end is low the other end height and form certain contained angle with lower sword. By utilizing the principle of shearing by the scissors, the punching of the plastic sheet by the upper and lower cutters is changed into staggered shearing of the upper and lower blades, so that the problems that the plastic sheet is difficult to cut or the edge is not neat because the upper and lower cutters are not flat and can not be completely attached in the traditional punching mode and the problems that rigid punching is easy to break and the blades are worn are solved; meanwhile, the automatic length fixing during cutting is realized by utilizing photoelectric detection. The utility model discloses can solve the plastic sheet tradition and tailor the mode and cut the quality unstable, because of tipping and wearing and tearing cost of maintenance are high, inefficiency, cut the low scheduling problem of qualification rate. The utility model relates to a rationally, simple structure, low cost, facilitate promotion.

Drawings

FIG. 1 is a general schematic view of an automatic cutting device for plastic formed sheets

FIG. 2 is a schematic sectional view taken along line A-A

Reference numerals:

1, cutting a material component; 11 a power cylinder; 12 knife beam; 13, feeding a cutter; 14, cutting; 15 a slide seat;

2, pressing a material component; 21, a material pressing cylinder; 22 pressing blocks; 23, a pad anvil; 3 main beam; 4 a detection element;

5, a feeding unit; 51 a feed conveyor; 52 an outfeed conveyor; 6, a frame;

7 liquid and gas supply control parts; 71 a hydraulic oil passage assembly; 72 gas path closing parts; 8, an electric control system; 9 plastic sheet.

Detailed Description

The present invention will be further described with reference to the following detailed description.

As shown in fig. 1 and 2, the utility model discloses an automatic cutting device for plastic forming sheet, including blank subassembly 1, press material subassembly 2, girder 3, detecting element 4, feeder unit 5, frame 6, liquid gas supply controlling part 7, electrical system 8 and the plastic sheet 9 that waits to cut. The blanking assembly 1 comprises a power cylinder 11, a knife beam 12, an upper knife 13, a lower knife 14 and a sliding seat 15; the swaging assembly 2 includes a swaging cylinder 21, a swaging block 22, and a pad anvil 23. The sliding seat 15 and the lower knife 14 of the blanking assembly 1 and the pad anvil 23 of the pressing assembly 2 are respectively locked on a horizontal panel of the frame 6 by bolts; the two ends of the main beam 3 are locked on the sliding seat 15 by equal-height pillars; the power cylinder 11 of the blanking assembly 1 and the pressing cylinder 21 of the pressing assembly 2 are respectively locked on the main beam 3 by bolts; both ends of a knife beam 12 of the blanking assembly 1 are hinged on a cylinder rod of the power cylinder 11 and are respectively inserted into a sliding seat 15 provided with a sliding chute; an upper knife 13 of the blanking assembly 1 is locked on a knife beam 12 by bolts and is driven by a power cylinder 11 to slide up and down; the uncut plastic sheet 9 is passed in a strip-like shape between the nip block 22 and the pad anvil 23, while passing between the upper blade 13 and the lower blade 14 and is placed on the equal-height surfaces of the pad anvil 23 and the lower blade 14.

As shown in fig. 1 and 2, the feeding unit 5 of the present invention includes a feeding conveyor 51 and a discharging conveyor 52, which are respectively disposed at the feeding end and the discharging end of the blanking assembly 1 and the pressing assembly 2, and the plastic sheet 9 is disposed on the conveyor belt thereof to realize feeding and discharging; the detection elements 4 are a left photoelectric switch and a right photoelectric switch which are respectively locked on the fixing plates on the left side and the right side of the discharge end of the feeding unit 5 by bolts.

As shown in fig. 1 and 2, the liquid-gas supply control assembly 7 of the present invention includes a hydraulic oil path assembly 71 and an air path assembly 72; the liquid-gas supply control component 7 and the electric control system 8 are respectively fixed on the side surface of the frame 6 by bolts; the liquid-gas supply control part 7 is respectively connected with the power cylinder 11 of the material cutting component 1 and the material pressing cylinder 21 of the material pressing component 2 in series; the electric control system 8 is respectively connected in series with the electromagnetic valve of the liquid-gas supply control assembly 7, the detection element 4 and the driving motor of the feeding unit 5.

An automatic cutting device application method for plastic molding sheet as follows:

and starting the oil supply and air supply sources of the electric control system 8 and the liquid-air supply control assembly 7, lifting the power cylinder 11 of the material cutting assembly 1 and the material pressing cylinder 21 of the material pressing assembly 2 by the instruction of the electric control system 8, and starting the feeding unit 5.

The uncut plastic sheet 9 is advanced in a band-like shape through between the nip block 22 and the pad anvil 23, simultaneously through between the upper blade 13 and the lower blade 14 and on the equal-height surfaces of the pad anvil 23 and the lower blade 14 by the feeding of the feeding conveyor 51. Continuing feeding until the photoelectric switch of the detection element 4 detects the edge of the foremost end of the plastic sheet 9, and sending an instruction by the electronic control system 8 to the feeding conveyor 51 to stop feeding; the electromagnetic valve of the pressing cylinder 21 of the pressing component 2 is instructed to act, and the pressing cylinder 21 drives the pressing block 22 to press the plastic sheet 9; simultaneously, the electromagnetic valve of the power cylinder 11 of the material cutting assembly 1 is instructed to act, the power cylinder 11 drives the upper knife 13 to move downwards, the lowest point of the upper knife edge contacts with the cutting edges of the plastic sheet 9 and the lower knife 14 firstly, the upper knife 13 continues to move downwards until the highest point of the upper knife edge also completely contacts with the cutting edges of the plastic sheet 9 and the lower knife 14, at the moment, the plastic sheet 9 is completely cut off, and the power cylinder 11 drives the upper knife 13 to lift; the cut plastic sheet 9 is sent to the next process by the discharge of the discharge conveyor 52, and the entire cutting operation is completed.

And continuous feeding and punching are carried out in the same way, so that the automatic cutting of the plastic forming sheet is realized.

The utility model discloses utilize the principle that the scissors was cuted, the dislocation of cutting edge was cuted about becoming the die-cut of upper and lower sword to plastic sheet is cuted, utilizes photoelectric detection to realize cutting out automatic fixed length simultaneously. The problems of unstable cutting quality, easy edge breakage, high abrasion and maintenance cost, low efficiency, low cutting qualified rate and the like of the traditional cutting mode of the plastic sheet are solved.

In the explanation of the present invention, the terms such as "left", "right", "up", "down", etc. are used for indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for convenience of simplifying the description, and do not explicitly or implicitly indicate the specific orientation or position relationship which must be possessed, and therefore, the present invention should not be interpreted as being limited to the protection content of the present invention.

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, and the present invention is to be modified immaterial by this concept, and all should belong to the act of infringing the protection scope of the present invention.

Claims

1. The utility model provides an automatic cutting device for plastic molding sheet, includes plastic sheet (9), material feeding unit (5), liquid gas supply controlling part (7) and electrical system (8), its characterized in that: the cutting device comprises a main beam (3), a rack (6), a cutting assembly (1), a pressing assembly (2) and a detection element (4), wherein the cutting assembly (1) is arranged on the main beam, the cutting assembly (1) comprises an upper cutter (13) and a lower cutter (14), the contact part of the upper cutter (13) corresponding to the lower cutter (14) is machined into a sharp cutting edge, the cutting edge and the cutting edge surface are precisely machined straight lines and planes, the cutting edge of the upper cutter (13) is inclined from the left end to the right end in the length direction and forms a plurality of included angles with the cutting edge of the lower cutter (14), the cutting assembly (1) further comprises a power cylinder (11), a cutter beam (12) and a sliding seat (15), the power cylinder (11) and the sliding seat (15) are respectively arranged on the left and the right, two ends of the cutter beam (12) are hinged to a cylinder rod of the power cylinder (11) and are respectively inserted into the sliding seat (15) with sliding grooves to slide up and down, the plastic sheet cutting device is characterized in that the upper knife (13) is locked on a knife beam (12), the lower knife (14) is locked on a horizontal plate surface of the rack (6), the edge surface of the upper knife (13) is fully attached to the edge surface of the corresponding lower knife (14) when sliding downwards to cut the plastic sheet (9), the pressing assembly (2) comprises a pressing block (22), a pad anvil (23) and a pressing cylinder (21), the pressing block (22) is hinged with a cylinder rod of the pressing cylinder (21), the pad anvil (23) is locked on the horizontal plate surface of the rack (6), and the uncut plastic sheet (9) penetrates between the pressing block (22) and the pad anvil (23) in a strip shape and simultaneously penetrates between the upper knife (13) and the lower knife (14) and is placed on the equal-height surfaces of the pad anvil (23) and the lower knife (14).

2. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the power cylinder (11) and the material pressing cylinder (21) are respectively locked on the main beam (3), two ends of the main beam (3) are locked at the upper end of the sliding seat (15), and the lower end of the sliding seat (15) is locked with the frame (6).

3. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the detection elements (4) are a left photoelectric switch and a right photoelectric switch which are respectively arranged at the left side and the right side of the discharge end of the feeding unit (5), and the horizontal distance between the probe of the photoelectric switch and the cutting edge of the upper knife (13) is equal to the length of the cut plastic sheet (9).

4. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the feeding unit (5) comprises a feeding conveyor (51) and a discharging conveyor (52) which are respectively arranged at the feeding end and the discharging end of the blanking assembly (1) and the pressing assembly (2), and the plastic sheet (9) is arranged on a conveyor belt of the feeding unit to realize feeding and discharging.

5. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the power cylinder (11) is an oil cylinder or an air cylinder, and the material pressing cylinder (21) is an air cylinder.

6. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the pressing block (22) and the pad anvil (23) are workpieces made of nylon or polyurethane materials.

7. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the hydraulic-pneumatic control assembly (7) comprises a hydraulic oil path assembly (71) and an air path assembly (72), wherein the hydraulic oil path assembly (71) and the air path assembly (72) respectively comprise a plurality of electromagnetic directional valves and pipe connecting pieces, and the electromagnetic directional valves and the pipe connecting pieces are respectively connected with the power cylinder (11) or the material pressing cylinder (21) in series.

8. An automatic cutting device for plastic shaped sheets, according to claim 1, characterized in that: the execution motors or electric execution parts of the blanking assembly (1), the pressing assembly (2), the detection element (4) and the feeding unit (5) are all connected in series with an electric control system (8).