Film positioning and cutting device

Abstract

The utility model relates to a thin film positioning and cutting device which comprises a cutting assembly, a positioning assembly, a cutting assembly and a cutting assembly. The cutting assembly comprises a working platform, a guide rod, a sliding sleeve and an ultrasonic knife; the ultrasonic knife comprises a transducer and a blade; a through groove is formed in the working platform in the width direction of the working platform, the position of the through groove corresponds to the position of the guide rod, and the ultrasonic knife penetrates through the through groove and then is used for cutting the film. The positioning assembly is mounted on the top surface of the cutting assembly; the positioning assembly comprises a portal frame, a downward pressing plate and a downward pressing air cylinder. A piston rod of the pressing cylinder is downwards connected with a pressing plate; a guide groove is formed in the bottom face of the lower pressing plate in the length direction of the lower pressing plate, corresponds to the through groove and is used for containing the blade. The film positioning and cutting device is simple in structure and convenient to use, the guide groove is formed in the bottom face of the lower pressing plate, the blade of the ultrasonic knife is limited through the guide groove, cutting deviation can be effectively prevented, it is guaranteed that the appearance of a notch of a plastic film is intact, and the product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, in particular to a film positioning and cutting device. Background Art

[0002] The production of plastic film is that the plastic particles are extruded and plasticized, and then formed into a film in a special mold, and then rolled up after shaping. After rolling to a certain size, it is cut horizontally into a roll. After production is completed, the film roll needs to be cut into sheets for packaging and shipment.

[0003] Existing plastic film cutting adopts assembly line cutting, and long-term reciprocating cutting will easily blunt the blade edge, causing the blade to easily shift during the cutting process, causing local deformation of the cut position of the plastic film, seriously reducing the product quality. Utility Model Content

[0004] Based on this, the utility model provides a film positioning and cutting device with a simple structure and easy use. A guide groove is provided on the bottom surface of the lower pressure plate. The guide groove is used to limit the blade of the ultrasonic knife, which can effectively prevent the cutting from being offset, ensure the incision appearance of the plastic film is intact, and ensure product quality.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A film positioning and cutting device, comprising:

[0007] The cutting assembly comprises a working platform, a guide rod installed on the bottom surface of the working platform, a sliding sleeve slidably connected to the guide rod, and an ultrasonic knife installed on the sliding sleeve; the ultrasonic knife comprises a transducer installed on the sliding sleeve, and a blade connected to the transducer; a slot is provided on the working platform along the width direction of the working platform, the position of the slot corresponds to the position of the guide rod, and the ultrasonic knife is used to cut the film after passing through the slot; and

[0008] A positioning assembly is installed on the top surface of the cutting assembly; the positioning assembly includes a gantry installed above the working platform, a lower pressure plate slidably connected to the inside of the gantry, and a lower pressure cylinder installed on the top of the gantry; the piston rod of the lower pressure cylinder is downwardly connected to the lower pressure plate; the bottom surface of the lower pressure plate is provided with a guide groove along the length direction of the lower pressure plate, the guide groove corresponds to the over-slot, and the guide groove is used to accommodate the blade.

[0009] The above-mentioned film positioning and cutting device has a simple structure and is easy to use. The bottom surface of the lower pressure plate is provided with a guide groove. The guide groove is used to limit the blade of the ultrasonic knife, which can effectively prevent the cutting from being offset, ensure the incision appearance of the plastic film is intact, and ensure product quality.

[0010] In one embodiment, the cutting assembly further comprises a first connecting rod hinged to one side of the sliding sleeve, a second connecting rod hinged to an end of the first connecting rod away from the sliding sleeve, and a driving cylinder hinged to the middle of the first connecting rod.

[0011] In one embodiment, an end of the second connecting rod away from the first connecting rod is used to articulate the working platform, and an end of the driving cylinder away from the first connecting rod is used to articulate the working platform.

[0012] In one embodiment, the length of the first connecting rod is greater than the length of the second connecting rod.

[0013] In one of the embodiments, a plurality of adjustment holes are provided at intervals in the middle of the first connecting rod, and the adjustment holes are used to match the articulation drive cylinder.

[0014] In one of the embodiments, the cutting assembly further includes a distance sensor installed on one side of the second connecting rod, and a center console installed on one side of the working platform; the distance sensor and the driving cylinder are both electrically connected to the center console. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a film positioning and cutting device according to one embodiment of the utility model;

[0016] Figure 2 for Figure 1 An exploded schematic diagram of a film positioning and cutting device is shown;

[0017] Figure 3 for Figure 1 A three-dimensional schematic diagram of the film positioning and cutting device from another perspective shown;

[0018] Figure 4 for Figure 2 A three-dimensional schematic diagram of the film positioning and cutting device from another perspective shown;

[0019] Figure 5 for Figure 4 An enlarged schematic diagram of circle A shown;

[0020] Figure 6 for Figure 2 The internal structure diagram of the film positioning and cutting device shown;

[0021] Figure 7 for Figure 1 A three-dimensional schematic diagram of the positioning component in the film positioning and cutting device shown.

[0022] Notes on the attached drawings:

[0023] 10-cutting assembly, 11-working platform, 110-slot, 12-guide rod, 13-sliding sleeve, 14-ultrasonic knife, 141-transducer, 142-blade, 15-first connecting rod, 150-adjusting hole, 16-second connecting rod, 17-distance sensor, 18-driving cylinder, 19-center console;

[0024] 20-positioning assembly, 21-gantry, 22-lower pressure plate, 220-guide groove, 23-downward pressure cylinder. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] See also Figures 1 to 7 , is a film positioning and cutting device according to an embodiment of the present invention, comprising a cutting assembly 10 and a positioning assembly 20 installed on the top surface of the cutting assembly 10 .

[0029] The cutting assembly 10 includes a working platform 11, a guide rod 12 installed on the bottom surface of the working platform 11, a sleeve 13 slidably connected to the guide rod 12, an ultrasonic knife 14 installed on the sleeve 13, a first connecting rod 15 hinged on one side of the sleeve 13, a second connecting rod 16 hinged on one end of the first connecting rod 15 away from the sleeve 13, a distance sensor 17 installed on one side of the second connecting rod 16, a driving cylinder 18 hinged on the middle of the first connecting rod 15, and a central console 19 installed on one side of the working platform 11. Specifically, the end of the second connecting rod 16 away from the first connecting rod 15 is used to hinge the working platform 11, and the end of the driving cylinder 18 away from the first connecting rod 15 is used to hinge the working platform 11. Through the cooperation of the first connecting rod 15 and the second connecting rod 16, the driving cylinder 18 can drive the sleeve 13 to move along the length direction of the guide rod 12, so that the ultrasonic knife 14 cuts the film. Among them, the distance sensor 17 and the driving cylinder 18 are both electrically connected to the central console 19. The distance sensor 17 is used to detect the swing position of the second connecting rod 16, so as to control the start and stop of the driving cylinder 18, effectively limit the stroke of the ultrasonic knife 14, and prevent the ultrasonic knife 14 from undercutting or overcutting.

[0030] The working platform 11 is used for allowing the film to pass through. A slot 110 is provided on the working platform 11 along its width direction. The position of the slot 110 corresponds to the position of the guide rod 12. The ultrasonic knife 14 is used to cut the film after passing through the slot 110.

[0031] In this embodiment, the ultrasonic knife 14 includes a transducer 141 mounted on the sleeve 13, and a blade 142 connected to the transducer 141. The energy of ultrasonic waves is used to heat and melt the film locally, and the purpose of rapid cutting can be achieved without a sharp blade or a lot of pressure, thereby ensuring the cutting quality of the product.

[0032] In this embodiment, the length of the first connecting rod 15 is greater than that of the second connecting rod 16, and a plurality of adjustment holes 150 are provided at intervals in the middle of the first connecting rod 15, and the adjustment holes 150 are used to match the articulated driving cylinder 18. In actual use, different adjustment holes 150 can be selected to connect the driving cylinder 18, thereby changing the sliding distance of the first connecting rod 15, that is, changing the stroke size of the ultrasonic knife 14, to form different cutting lengths.

[0033] The positioning assembly 20 includes a gantry 21 installed above the working platform 11, a lower pressure plate 22 slidably connected to the inside of the gantry 21, and a lower pressure cylinder 23 installed on the top of the gantry 21; the piston rod of the lower pressure cylinder 23 is downwardly connected to the lower pressure plate 22 to drive the lower pressure plate 22 to fall.

[0034] In this embodiment, the bottom surface of the lower pressing plate 22 is provided with a guide groove 220 along its length direction, the guide groove 220 corresponds to the through groove 110, and the guide groove 220 is used to accommodate the blade 142. When cutting, the lower pressing plate 22 falls and presses the film. At this time, the blade 142 is restricted to move inside the guide groove 220 to cut the film. The limiting effect of the guide groove 220 can effectively prevent the ultrasonic knife 14 from deviating, ensure the appearance of the cut of the film is intact, and ensure the product quality.

[0035] The above-mentioned film positioning and cutting device has a simple structure and is easy to use. A guide groove 220 is provided on the bottom surface of the lower pressure plate 22. The guide groove 220 is used to limit the blade 142 of the ultrasonic knife 14, which can effectively prevent the cutting from being offset, ensure the incision appearance of the film is intact, and ensure product quality.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A film positioning and cutting device, characterized in that: include: The cutting assembly comprises a working platform, a guide rod installed on the bottom surface of the working platform, a sliding sleeve slidably connected to the guide rod, and an ultrasonic knife installed on the sliding sleeve; the ultrasonic knife comprises a transducer installed on the sliding sleeve, and a blade connected to the transducer; a slot is provided on the working platform along the width direction of the working platform, the position of the slot corresponds to the position of the guide rod, and the ultrasonic knife is used to cut the film after passing through the slot; and A positioning assembly is installed on the top surface of the cutting assembly; the positioning assembly includes a gantry installed above the working platform, a lower pressure plate slidably connected to the inside of the gantry, and a lower pressure cylinder installed on the top of the gantry; the piston rod of the lower pressure cylinder is downwardly connected to the lower pressure plate; the bottom surface of the lower pressure plate is provided with a guide groove along the length direction of the lower pressure plate, the guide groove corresponds to the over-slot, and the guide groove is used to accommodate the blade.

2. The film positioning and cutting device according to claim 1, characterized in that: The cutting assembly also includes a first connecting rod hinged on one side of the sliding sleeve, a second connecting rod hinged on an end of the first connecting rod away from the sliding sleeve, and a driving cylinder hinged on the middle part of the first connecting rod.

3. The film positioning and cutting device according to claim 2, characterized in that: One end of the second connecting rod away from the first connecting rod is used for articulating the working platform, and one end of the driving cylinder away from the first connecting rod is used for articulating the working platform.

4. The film positioning and cutting device according to claim 2, characterized in that: The length of the first connecting rod is greater than the length of the second connecting rod.

5. The film positioning and cutting device according to claim 2, characterized in that: A plurality of adjustment holes are arranged at intervals in the middle of the first connecting rod, and the adjustment holes are used to match the articulated driving cylinder.

6. The film positioning and cutting device according to claim 2, characterized in that: The cutting assembly also includes a distance sensor installed on one side of the second connecting rod, and a central console installed on one side of the working platform; the distance sensor and the driving cylinder are both electrically connected to the central console.

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