Film covering device for cutting soft material with large expansion coefficient

Abstract

The utility model discloses a film covering device for cutting soft materials with large expansion coefficient, which comprises a first film collecting and releasing assembly, a second film collecting and releasing assembly and a film, one end of the film is connected with the first film collecting and releasing assembly, and the other end of the film is connected with the second film collecting and releasing assembly. The second film collecting and releasing assembly is movably arranged above a material picking table or a vacuum adsorption area of the cutting bed in a striding mode. The utility model has the advantages that the film can be ensured to be always attached to the material picking table of the cutting bed and the material on the vacuum adsorption area, the material separated from the vacuum adsorption area is prevented from leaking air and expanding too early, and the material is continuously in a certain negative pressure state, so that the accurate cutting of the material in the vacuum adsorption area can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent cutting tables, in particular to a laminating device for cutting soft materials with a large expansion coefficient. Background Art

[0002] like Figure 1 and Figure 2 As shown, the existing film coating device of the cutting bed is composed of two parts: a fixed rod 1 and a rotating film retracting rod 2. During the film coating operation, one end of the film 300 is first fixed on the fixed rod 1, and the other end is wound on the rotating film retracting rod 2, and then the rotating film retracting rod 2 is allowed to reciprocate with the cutting head 403 of the cutting bed 400 to rotate and tighten the film, so that the film 300 is always covered on the soft material surface of the vacuum adsorption area, so as to achieve the function of auxiliary sealing and maintaining vacuum pressure. However, the existing film coating device of the cutting bed is generally suitable for cutting soft materials whose thickness does not change much after vacuum adsorption, but is not suitable for soft materials with a large expansion coefficient, because the cut part of the soft material with a large expansion coefficient will be separated from the film coating area (i.e., the vacuum adsorption area) after passing through the tooth plate 404 of the cutting bed 400, resulting in the material outside the film coating area (i.e., the material picking table) starting to deflate and expand prematurely, which will affect the vacuum airtightness of the vacuum adsorption area 402, and further affect the cutting accuracy of the material on the vacuum adsorption area 402. Utility Model Content

[0003] In view of the problems in the background technology, the purpose of the utility model is to provide a coating device for cutting soft materials with a large expansion coefficient.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A coating device for cutting soft materials with a large expansion coefficient comprises a first retractable film assembly, a second retractable film assembly and a film, one end of the film is connected to the first retractable film assembly, and the other end is connected to the second retractable film assembly. When in use, the first retractable film assembly is fixedly arranged above the picking table of the cutting table, and the second retractable film assembly is movably arranged above the picking table or vacuum adsorption area of ​​the cutting table.

[0006] Furthermore, the first film retracting and releasing assembly includes a gantry fixedly arranged across the upper front end of the material picking platform, a first rotating film retracting and releasing rod arranged on the inner side of the gantry for rotating the film retracting and releasing, and a rotating film retracting and releasing driving mechanism arranged at one end of the gantry and transmission-connected to the first rotating film retracting and releasing rod.

[0007] Further, the rotary winding and unwinding film driving mechanism includes a rotary motor, a motor wheel, a driven wheel and a transmission belt. The rotary motor is fixedly arranged at one end of the gantry. The motor wheel is arranged on the power transmission shaft of the rotary motor and is in transmission connection with the driven wheel through the transmission belt. The driven wheel is arranged at one end of the first rotary winding and unwinding film rod.

[0008] Further, the motor wheel is provided with a one-way bearing, and the motor wheel is sleeved on the output shaft of the rotary motor through the one-way bearing.

[0009] Further, the first winding and unwinding film assembly further includes a rotary shaft, a counterweight rod and a tension rod arranged inside the gantry. The rotary shaft is rotatably arranged inside the gantry, and both ends of the rotary shaft are respectively connected to the counterweight rod and the tension rod through a first connecting plate.

[0010] Further, a limit inductor is arranged at one end of the gantry for sensing the tension rod.

[0011] Further, the second winding and unwinding film assembly includes a second rotary winding and unwinding film rod straddling the material picking table or the vacuum adsorption area of the cutting table and two second connecting plates arranged at both ends of the second rotary winding and unwinding film rod for connecting the second rotary winding and unwinding film rod with the cutting head of the cutting table.

[0012] Compared with the prior art, the advantages of the present utility model are as follows: It ensures that the film always adheres to the materials on the material picking table and the vacuum adsorption area of the cutting table, preventing the materials that have left the vacuum adsorption area (i.e., the material picking table) from leaking air and expanding prematurely, but keeping them in a certain negative pressure state, thereby ensuring accurate cutting of the materials in the vacuum adsorption area.

[0013] Generally speaking, the film covering device of the prior art is located above the vacuum adsorption area of the cutting table, that is, the film covering area is located on the vacuum adsorption area. Once the materials in the vacuum adsorption area are cut and sent to the material picking table through the toothed plate of the cutting table, these materials will fall off the film covering area and are no longer affected by the adhesion of the film; while the film covering device of the present application is partially located above the material picking table and partially located on the vacuum adsorption area, that is, the film covering area straddles the material picking table and the vacuum adsorption area. When the materials on the vacuum adsorption area are cut and sent to the material picking table through the toothed plate of the cutting table, there will still be a section of film attached to them, preventing them from leaking air and expanding prematurely due to leaving the vacuum adsorption area. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of an existing film laminating device;

[0016] Figure 2 is a schematic assembly structure diagram of an existing film laminating device and a cutting table;

[0017] Figure 3 is a schematic structural diagram of the film laminating device provided by an embodiment of the present invention;

[0018] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0019] Figure 5 is Figure 3 an enlarged schematic diagram of part B in

[0020] Figure 6 is a schematic assembly structure diagram of the film laminating device and the cutting table provided by an embodiment of the present invention;

[0021] Description of reference numerals: 100, first film winding and unwinding assembly; 101, gantry; 102, first rotating film winding and unwinding rod; 103, rotating film winding and unwinding drive mechanism; 103a, rotating motor; 103b, motor pulley; 103c, driven pulley; 103d, transmission belt; 104, rotating shaft; 105, counterweight rod; 106, tension rod; 107, first connecting plate; 108, limit inductor; 200, second film winding and unwinding assembly; 201, second rotating film winding and unwinding rod; 202, second connecting plate; 300, film; 400, cutting table; 401, material picking table; 402, vacuum adsorption area; 403, cutting head; 404, toothed plate. Detailed implementation manners

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings and specific embodiments.

[0023] Please refer to Figures 3 to 6, an embodiment of the present utility model provides a film covering device for cutting soft materials with a large coefficient of expansion, including a first film winding and unwinding assembly 100, a second film winding and unwinding assembly 200, and a film 300; wherein, one end of the film 300 is connected to the first film winding and unwinding assembly 100, and the other end is connected to the second film winding and unwinding assembly 200; during use, the first film winding and unwinding assembly 100 is fixedly spanned above the material picking table 401 of the cutting table 400, and the second film winding and unwinding assembly 200 is movably spanned above the material picking table 401 or the vacuum adsorption area 402 of the cutting table 400 and is fixedly connected to the cutting head 403 of the cutting table 400. The second film winding and unwinding assembly 200 can move back and forth along the length direction of the cutting table 400 together with the cutting head 402 above the material picking table 401 and the vacuum adsorption area 402, which can ensure that the film 300 always adheres to the material above the material picking table 401 and the vacuum adsorption area 402, and can ensure that the material cut by the cutting head 402 still maintains a certain negative pressure state after leaving the vacuum adsorption area 402, thereby ensuring the accurate cutting of the subsequent material on the vacuum adsorption area 402.

[0024] Please continue to refer to Figures 3 to 6 , in the embodiment of the present utility model, the first film winding and unwinding assembly 100 includes a gantry 101 fixedly spanned above the upper part of the front end of the material picking table 400, a first rotary film winding and unwinding rod 102 arranged inside the gantry 501 for rotating and winding and unwinding the film 300, and a rotary film winding and unwinding driving mechanism 103 arranged at one end of the gantry 101 and drivingly connected to the first rotary film winding and unwinding rod 102.

[0025] Please continue to refer to Figure 5 , in the embodiment of the present utility model, the rotary film winding and unwinding driving mechanism 103 includes a rotary motor 103a, a motor wheel 103b, a driven wheel 103c, and a transmission belt 103d. Among them, the rotary motor 103a is fixedly arranged at one end of the gantry 101, the motor wheel 103b is arranged on the power transmission shaft of the rotary motor 103a, and is drivingly connected to the driven wheel 103c through the transmission belt 103d, and the driven wheel 103c is arranged at one end of the first rotary film winding and unwinding rod 102.

[0026] Furthermore, the motor wheel 103b and the driven wheel 103c can adopt synchronous wheels or toothed sprockets, and the transmission belt 103d can adopt synchronous belts or chains. Among them, when the motor wheel 103b and the driven wheel 103c adopt synchronous wheels, the transmission belt 103d adopts a synchronous belt; when the motor wheel 103b and the driven wheel 103c adopt sprockets, the transmission belt 103d adopts a chain.

[0027] Furthermore, the motor wheel 103b is provided with a one-way bearing, and the motor wheel 103b is sleeved on the output shaft of the rotary motor 103a through the one-way bearing, so that the motor wheel 103b can only rotate counterclockwise with the rotary motor 103a and cannot rotate clockwise.

[0028] Please continue to refer to Figure 4 and Figure 5 , in the embodiment of the present utility model, the first film winding and unwinding assembly 100 further includes a rotating shaft 104, a counterweight rod 105 and a tension rod 106 disposed inside the gantry 101. Among them, the rotating shaft 104 is rotatably disposed inside the gantry 101, and both ends of the rotating shaft 104 are respectively connected to the counterweight rod 105 and the tension rod 106 through a first connecting plate 107.

[0029] Please continue to refer to Figure 5 , in the embodiment of the present utility model, a limit inductor 108 is further disposed on one side of the gantry 101, and the limit inductor 108 is used to sense the tension rod 106 to detect whether the film 300 is tensioned.

[0030] Please refer to Figure 3 , in the embodiment of the present utility model, the second film winding and unwinding assembly 200 includes a second rotating film winding and unwinding rod 201 straddling the material picking table 401 or the vacuum adsorption area 402 of the cutting table 400 and two second connecting plates 202 disposed at both ends of the second rotating film winding and unwinding rod 201 and used to connect the second rotating film winding and unwinding rod 201 and the cutting head 403 of the cutting table 400.

[0031] The working principle of the film covering device for cutting soft materials with a large coefficient of thermal expansion provided by the embodiment of the present utility model is as follows:

[0032] During use, one end of the film 300 is wound around the first rotating film winding and unwinding rod 102 of the first film winding and unwinding assembly 100, and the other end is wound around the second rotating film winding and unwinding rod 201 of the second film winding and unwinding assembly 200.

[0033] When the cutting table 400 is working, the cutting head 403 of the cutting table 400 will cut the soft material with a large expansion coefficient placed on the vacuum adsorption area 402 of the cutting table 400 from front to back. At this time, the second retractable film assembly 200 will move from front to back along with the cutting head 403. In the process of the second retractable film assembly 200 moving from front to back along with the cutting head 403, the film 300 wrapped around the first rotating retractable film rod 102 will have a backward pulling force, thereby pulling the first rotating retractable film rod 102 to rotate counterclockwise to release the film, and then the film 300 is attached to the material surface (i.e., the soft material with a large expansion coefficient) of the picking table 401 and the vacuum adsorption area 402. After part of the material in the vacuum adsorption area 402 is cut off, the material is fed toward the picking table 401 of the cutting table 400. It passes over the tooth plate 404 of the cutting bed 400, leaves the vacuum adsorption area 402 of the cutting bed 400 and enters the material picking table 401. At this time, the material that has left the vacuum adsorption area 402 has no power for adsorption. Since the soft material with a large expansion coefficient will deflate and expand prematurely when there is no adsorption force, it will affect the accurate cutting of the subsequent material in the vacuum adsorption area 402. In order to ensure the accurate cutting of the subsequent material in the vacuum adsorption area 402, it is necessary to start the rotating motor 103a in the first film retracting and releasing assembly 100. The rotating motor 103a controls the first rotating film retracting and releasing rod 102 to release the film through the driven wheel 103c, to ensure that the film 300 is always attached to the material on the material picking table 402, and the material that has left the vacuum adsorption area 402 is not allowed to leak and expand, so that it is in a certain negative pressure state.

[0034] Among them, when the cutting head 401 moves forward, the film 300 will separate downward from the tension rod 106 due to its own weight. At this time, the tension rod 106 will tilt downward because there is no upward lifting force given by the film 300, and will separate from the sensing area of ​​the limit sensor 108. At this time, the rotating motor 103a needs to rotate clockwise. Due to the one-way bearing, the rotating motor 103a will drive the motor wheel 103b to rotate clockwise, and the motor wheel 103b will drive the driven wheel 103c to rotate clockwise through the transmission belt 503d. The driven wheel 103c will drive the second rotating film retracting rod 201 to rotate and retract the film until the tension rod 106 is sensed by the limit sensor 108 again. At this time, the film 300 will maintain a close fit with the tension rod 106, that is, the film 300 is in a tensioned state.

[0035] Finally, it should be noted that the above description is only an embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the present utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A laminating device for cutting soft materials with large expansion coefficients, characterized in that: It comprises a first retractable film assembly (100), a second retractable film assembly (200) and a film (300), wherein one end of the film (300) is connected to the first retractable film assembly (100), and the other end is connected to the second retractable film assembly (200), the first retractable film assembly (100) is fixedly arranged above a material picking table (401) of a cutting table (400), and the second retractable film assembly (200) is movably arranged above a material picking table (401) or a vacuum adsorption area (402) of the cutting table (400).

2. The laminating device for cutting soft materials with large expansion coefficient according to claim 1, characterized in that: The first film retracting and releasing assembly (100) comprises a gantry (101) fixedly arranged across the upper front end of the material picking platform (401), a first rotating film retracting and releasing rod (102) rotatably arranged on the inner side of the gantry (101) for rotating the film retracting and releasing (300), and a rotating film retracting and releasing driving mechanism (103) arranged at one end of the gantry (101) and transmission-connected to the first rotating film retracting and releasing rod (102).

3. The laminating device for cutting soft materials with large expansion coefficient according to claim 2, characterized in that: The rotary film retracting and unretracting driving mechanism (103) comprises a rotary motor (103a), a motor wheel (103b), a driven wheel (103c) and a transmission belt (103d); the rotary motor (103a) is fixedly arranged at one end of the gantry (101); the motor wheel (103b) is arranged on the power transmission shaft of the rotary motor (103a) and is transmission-connected to the driven wheel (103c) via the transmission belt (103d); and the driven wheel (103c) is arranged at one end of the first rotary film retracting and unretracting rod (102).

4. The laminating device for cutting soft materials with large expansion coefficient according to claim 3, characterized in that: The motor wheel (103b) is provided with a one-way bearing, and the motor wheel (103b) is sleeved on the output shaft of the rotating motor (103a) via the one-way bearing.

5. The laminating device for cutting soft materials with large expansion coefficient according to claim 2, characterized in that: The first film retracting and unretracting assembly (100) further comprises a rotating shaft (104), a counterweight rod (105) and a tension rod (106) arranged on the inner side of the gantry (101); the rotating shaft (104) is rotatably arranged on the inner side of the gantry (101), and both ends of the rotating shaft (104) are respectively connected to the counterweight rod (105) and the tension rod (106) via a first connecting plate (107).

6. The laminating device for cutting soft materials with large expansion coefficient according to claim 5, characterized in that: A limit sensor (108) is provided on one side of the gantry (101) for sensing the tension rod (106).

7. The laminating device for cutting soft materials with large expansion coefficient according to claim 1, characterized in that: The second film retracting assembly (200) comprises a second rotating film retracting rod (201) straddling a material picking table (401) or a vacuum adsorption area (402) of a cutting table (400), and two second connecting plates (202) arranged at both ends of the second rotating film retracting rod (201) and used for connecting the second rotating film retracting rod (201) and a cutting head (403) of the cutting table (400).

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