Film tearing device of silk-screen printing equipment

Abstract

The utility model relates to a film tearing device of silk-screen printing equipment, which belongs to the technical field of printing equipment and comprises a fixed seat, the left end of the upper side of the fixed seat is provided with a film tearing device for tearing a silk-screen film, and the right end of the upper side of the fixed seat is provided with a winding device for winding the silk-screen; the winding device comprises two second vertical plates fixedly connected to the upper end of the right side of the fixing base, a second rotating shaft rotationally arranged between the two second vertical plates in a sleeving mode, a winding roller connected to the outer side of the second rotating shaft in a sleeving mode and a cutting device arranged on the left sides of the second vertical plates and used for cutting a silk screen. According to the film tearing device of the silk-screen printing equipment, a silk screen is wound through the winding roller, after the outer diameter of the wound silk screen is continuously increased and the wound silk screen abuts against the surface of a sensor, the silk screen can be cut through the cutting knife, and the burden of the silk screen on the outer side of the winding roller can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a film tearing device for screen printing equipment. Background Art

[0002] In the screen printing process, some of the printed items have a protective film, which needs to be torn off before printing.

[0003] After searching, Chinese patent CN212767244U in the prior art discloses a film-tearing device of a screen printing device and a screen printing device, including a film-tearing mechanism and a film-tearing driving mechanism. There are two film-tearing mechanisms, and the two film-tearing mechanisms are respectively located on both sides of the conveying line of the screen printing device. Each film-tearing mechanism includes a film-tearing rubber roller, and the angle between the axial direction of each film-tearing rubber roller and the conveying direction of the printed matter is an acute angle. The film-tearing driving mechanism is connected to the film-tearing mechanism, and the film-tearing driving mechanism is used to drive the film-tearing mechanism to move in the up and down directions. The film-tearing driving mechanism can also drive the two film-tearing mechanisms to move in the direction close to or away from each other. The utility model has a good film-tearing effect and can adapt to printed matters of different sizes, and has a wide range of applications.

[0004] However, the film tearing device of the utility model can only tear the film on the surface of the screen, and cannot cut the screen at the same time. As a result, if too much entangled screen is not processed, the weight of the outer side of the winding device will continue to increase, and in severe cases, the winding device will be damaged or malfunction. Therefore, a film tearing device for screen printing equipment is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a film tearing device for screen printing equipment, which has the advantages of tearing the film and cutting the screen at the same time, and solves the problem that the screen cannot be cut while tearing the film on the screen surface, resulting in excessive entangled screen that will continue to increase the weight of the outside of the winding device if not processed, and in serious cases, it will cause damage or malfunction of the winding device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a film tearing device of a screen printing device, comprising a fixed seat, a film tearing device for tearing the film of the screen is arranged at the left end of the upper side of the fixed seat, and a winding device for winding the screen is arranged at the right end of the upper side of the fixed seat;

[0007] The winding device comprises two second vertical plates fixedly connected to the upper right end of the fixing seat, a second rotating shaft rotatably sleeved between the two second vertical plates, a winding roller sleeved on the outside of the second rotating shaft, and a cutting device arranged on the left side of the second vertical plate for cutting the wire mesh;

[0008] The cutting device includes a second drive motor fixedly installed on one side of one of the second vertical plates, a threaded rod fixedly connected to the output end of the second drive motor, a threaded sleeve threadedly connected to the outside of the threaded rod, an electric push rod slidably sleeved on the inner wall of the threaded sleeve, a support frame fixedly connected to the left side of the threaded sleeve, an electric push rod fixedly installed on the inner top wall of the support frame, a chassis fixedly connected to the output end of the electric push rod, a third drive motor fixedly installed inside the chassis, a rotating shaft fixedly connected to the output end of the third drive motor, and a cutting knife sleeved on the outer wall of the left side of the rotating shaft.

[0009] Furthermore, the film tearing device includes two first vertical plates fixedly connected to the left end of the upper side of the fixed base, a first driving motor fixedly installed on one side of one of the first vertical plates, a third rotating shaft fixedly connected to the output end of the first driving motor, a film tearing tape sleeved on the outside of the third rotating shaft, a first belt transmission-connected to the outside of the third rotating shaft close to the first driving motor, a first rotating shaft transmission-connected to the side of the first belt away from the third rotating shaft, a film collecting roller sleeved on the outside of the first rotating shaft, and a second belt transmission-connected to the side of the third rotating shaft away from the film tearing tape.

[0010] Furthermore, a control device for controlling the second drive motor is disposed on the upper side of the fixing seat, and the control device includes two sensors embedded and installed on the right end of the upper side of the fixing seat.

[0011] Furthermore, a collecting groove is provided at the right end of the inner side of the fixing seat, and a sliding groove is provided at the left side of the supporting frame.

[0012] Furthermore, the right side of the chassis is slidably connected in the slide groove.

[0013] Furthermore, the two sensors are arranged transversely at the lower side end of the winding roller.

[0014] Furthermore, a side of the second belt away from the third rotating shaft is drivingly connected to an outer wall surface of one side of the second rotating shaft.

[0015] Compared with the prior art, the utility model provides a film tearing device for screen printing equipment, which has the following beneficial effects:

[0016] 1. The film tearing device of the screen printing equipment reels the screen through a reel. When the outer diameter of the reel continues to increase and contacts the sensor surface, the screen can be cut by a cutting knife, which can effectively avoid the burden of the screen on the outer side of the reel.

[0017] 2. The film-tearing device of the screen printing equipment drives the chassis to move upward through the output end of the electric push rod, and the cutting knife moves upward synchronously. When not in use, it is separated from the screen to reduce obstruction, which solves the problem of not being able to cut the screen while tearing the film on the screen surface. If the excessive entangled screen is not handled, the weight of the outside of the winding device will continue to increase, and serious damage or failure of the winding device will be caused. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 This is a top view of the structure of the utility model;

[0020] Figure 3 This is a structural side view of the support frame of the utility model;

[0021] Figure 4 It is a structural stereogram of the support frame of the utility model.

[0022] In the figure: 1 fixed seat, 2 first vertical plate, 3 first drive motor, 4 first belt, 5 first rotating shaft, 6 second vertical plate, 7 second drive motor, 8 second rotating shaft, 9 chassis, 10 third drive motor, 11 rotating shaft, 12 cutting knife, 13 collecting tank, 14 film taking-up roller, 15 third rotating shaft, 16 film tearing tape, 17 sensor, 18 threaded rod, 19 threaded sleeve, 20 support frame, 21 electric push rod, 22 second belt, 23 winding roller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4In this embodiment, a film tearing device of a screen printing device includes a fixed seat 1, a film tearing device for tearing the film of the screen is arranged at the left end of the upper side of the fixed seat 1, and a winding device for winding the screen is arranged at the right end of the upper side of the fixed seat 1. The winding device includes two second vertical plates 6 fixedly connected to the upper end of the right side of the fixed seat 1, a second rotating shaft 8 rotatably sleeved between the two second vertical plates 6, a winding roller 23 sleeved on the outside of the second rotating shaft 8, and a cutting device arranged on the left side of the second vertical plate 6 for cutting the screen. The cutting device includes a second drive motor 7 fixedly installed on one side of one of the second vertical plates 6, a threaded rod 18 fixedly connected to the output end of the second drive motor 7, a threaded sleeve 19 threadedly connected to the outside of the threaded rod 18, an electric push rod 21 slidably sleeved on the inner wall of the threaded sleeve 19, a support frame 20 fixedly connected to the left side of the threaded sleeve 19, an electric push rod 21 fixedly installed on the inner top wall of the support frame 20, a chassis 9 fixedly connected to the output end of the electric push rod 21, a third drive motor 10 fixedly installed inside the chassis 9, a rotating shaft 11 fixedly connected to the output end of the third drive motor 10, and a cutting knife 12 sleeved on the left outer wall of the rotating shaft 11.

[0025] The film tearing device includes two first vertical plates 2 fixedly connected to the left end of the upper side of the fixed base 1, a first driving motor 3 fixedly installed on one side of one of the first vertical plates 2, a third rotating shaft 15 fixedly connected to the output end of the first driving motor 3, a film tearing tape 16 sleeved on the outside of the third rotating shaft 15, a first belt 4 transmission-connected to the third rotating shaft 15 close to the outside of the first driving motor 3, a first rotating shaft 5 transmission-connected to the side of the first belt 4 away from the third rotating shaft 15, a film receiving roller 14 sleeved on the outside of the first rotating shaft 5, and a film receiving roller 14 transmission-connected to the outside of the first rotating shaft 5. The third rotating shaft 15 is away from the second belt 22 on the side of the tearing tape 16, and a control device for controlling the second drive motor 7 is arranged on the upper side of the fixed seat 1. The control device includes two sensors 17 embedded and installed on the right end of the upper side of the fixed seat 1. A collecting groove 13 is opened on the right end of the inner side of the fixed seat 1, and a slide groove is opened on the left side of the support frame 20. The right side of the chassis 9 is slidably connected in the slide groove, and the two sensors 17 are horizontally arranged at the lower side end of the winding roller 23. The second belt 22 is transmission-connected to the outer wall surface of one side of the second rotating shaft 8 on the side away from the third rotating shaft 15.

[0026] The working principle of the above embodiment is:

[0027] The film-tearing tape 16 is wound around the outer surface of the third rotating shaft 15, and the screen is passed from the upper side of the fixed seat 1 through the lower side of the film-tearing tape 16 and is wound around the outer surface of the winding roller 23. The first driving motor 3 is started to rotate and the film-taking roller 14 and the winding roller 23 are driven to rotate synchronously by the first belt 4 and the second belt 22 respectively. The film-tearing tape 16 winds the film torn off the screen through the film-taking roller 14 and fixes it. The winding roller 23 collects the screen after the film is torn. As the screen is wound, the outer wall diameter of the winding roller 23 increases. When it is in contact with the sensor 17 on the upper side of the fixed seat 1 After the surface is contacted, the first drive motor 3 will be disconnected and then the second drive motor 7 will start to drive the threaded rod 18 to move the chassis 9 connected to the threaded sleeve 19 left and right on the fixed seat 1. During this period, the third drive motor 10 rotates the cutting knife 12 and cooperates with the telescopic end of the electric push rod 21 to extend toward the surface of the wire mesh and cut. The debris generated by the cutting will naturally fall down to the collection tank 13 for collection and processing. At this time, the staff needs to remove the wire mesh on the surface of the winding roller 23 to avoid excessive winding and burdening the winding roller 23 and the second rotating shaft 8.

[0028] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the text.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film tearing device for screen printing equipment, comprising a fixing seat (1), characterized in that: A film tearing device for tearing the film of the screen is arranged at the left end of the upper side of the fixing seat (1), and a winding device for winding the screen is arranged at the right end of the upper side of the fixing seat (1); The winding device comprises two second vertical plates (6) fixedly connected to the upper right end of the fixed seat (1), a second rotating shaft (8) rotatably sleeved between the two second vertical plates (6), a winding roller (23) sleeved on the outside of the second rotating shaft (8), and a cutting device arranged on the left side of the second vertical plate (6) for cutting the wire mesh; The cutting device comprises a second drive motor (7) fixedly mounted on one side of one of the second vertical plates (6), a threaded rod (18) fixedly connected to the output end of the second drive motor (7), a threaded sleeve (19) threadedly connected to the outside of the threaded rod (18), an electric push rod (21) slidably sleeved on the inner wall of the threaded sleeve (19), a support frame (20) fixedly connected to the left side of the threaded sleeve (19), an electric push rod (21) fixedly mounted on the inner top wall of the support frame (20), a case (9) fixedly connected to the output end of the electric push rod (21), a third drive motor (10) fixedly mounted inside the case (9), a rotating shaft (11) fixedly connected to the output end of the third drive motor (10), and a cutting knife (12) sleeved on the left outer wall of the rotating shaft (11).

2. The film tearing device of the screen printing equipment according to claim 1, characterized in that: The film-tearing device comprises two first vertical plates (2) fixedly connected to the left end of the upper side of the fixed seat (1), a first driving motor (3) fixedly installed on one side of one of the first vertical plates (2), a third rotating shaft (15) fixedly connected to the output end of the first driving motor (3), a film-tearing tape (16) sleeved on the outside of the third rotating shaft (15), a first belt (4) transmission-connected to the outside of the third rotating shaft (15) close to the first driving motor (3), a first rotating shaft (5) transmission-connected to the side of the first belt (4) away from the third rotating shaft (15), a film-collecting roller (14) sleeved on the outside of the first rotating shaft (5), and a second belt (22) transmission-connected to the side of the third rotating shaft (15) away from the film-tearing tape (16).

3. The film tearing device of the screen printing equipment according to claim 1, characterized in that: A control device for controlling the second drive motor (7) is arranged on the upper side of the fixing seat (1), and the control device comprises two sensors (17) mounted on the right end of the upper side of the fixing seat (1).

4. The film tearing device of the screen printing equipment according to claim 1, characterized in that: A collecting groove (13) is provided at the right end of the inner side of the fixing seat (1), and a sliding groove is provided at the left side of the supporting frame (20).

5. The film tearing device of the screen printing equipment according to claim 4, characterized in that: The right side of the chassis (9) is slidably connected in the slide groove.

6. The film tearing device of the screen printing equipment according to claim 3, characterized in that: The two sensors (17) are arranged transversely at the lower side end of the winding roller (23).

7. The film tearing device of the screen printing equipment according to claim 2, characterized in that: The side of the second belt (22) away from the third rotating shaft (15) is drivingly connected to the outer wall surface of one side of the second rotating shaft (8).

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