Air draft device for digital printing machine

Abstract

The utility model discloses an air draft device for a digital calico printing machine, which relates to the related technical field of the digital calico printing machine, and comprises a digital calico printing machine main body, the top of the digital calico printing machine main body is provided with a movable frame through a movable driving device, and the two sides of the top end of the movable frame are fixedly connected with two inverted L-shaped supports which are symmetrically arranged; the same rotating pipe is rotationally connected between the two inverted-L-shaped supports on each side, one ends of the two rotating pipes are closed, the other ends of the two rotating pipes are connected to the rotating end of a rotating joint, the other end of the rotating joint is fixedly connected and communicated with an L-shaped connecting pipe, and the other ends of the two L-shaped connecting pipes are fixedly connected and communicated with the same three-way pipe; according to the utility model, the transmission structure is arranged, the two draught hoods can swing under the action of front and back movement of the movable frame and cooperation with a plurality of components, and the suction pump is started, so that the suction range of the two draught hoods is wide, and the suction effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of digital printing machines, in particular to an air extraction device for a digital printing machine. Background Art

[0002] A digital printing machine is a device that uses digital technology for printing. It can be controlled by a computer to directly print patterns, images or texts on fabrics or papers, realizing personalized customized printing. The printing effect of the digital printing machine is fine, the colors are bright, and it can meet the printing requirements of quickly switching different patterns and colors. It is applicable to fields such as clothing, household items, and decorations. Its appearance has greatly promoted the development of the printing industry and provided consumers with more diverse and personalized choices.

[0003] The existing digital printing machines have the following disadvantages during use:

[0004] On the one hand, only air extraction is carried out simply. Only an air extraction hood with a fixed angle is set at the printing position to perform the air extraction operation. However, the angle of the air extraction hood cannot swing, resulting in a limited range during air extraction and a poor air extraction effect.

[0005] On the other hand, although a filtering structure can be used to filter the sucked air, the filtering structure is not convenient to disassemble and replace after long-term use, resulting in a problem that the filtering effect is prone to be poor in the later stage. Therefore, we have designed an air extraction device for a digital printing machine to solve the above problems. Summary of the Invention

[0006] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to provide an air extraction device for a digital printing machine.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An air extraction device for a digital printing machine, including a digital printing machine main body. A moving frame is installed on the top of the digital printing machine main body through a moving driving device. Both sides of the top end of the moving frame are fixedly connected with two symmetrically arranged inverted L-shaped brackets. The same rotating pipe is rotatably connected between the two inverted L-shaped brackets on each side. One end of each of the two rotating pipes is closed, and the other end is connected to the rotating end of a rotary joint. The other ends of the two rotary joints are fixedly connected and communicated with an L-shaped connecting pipe. The other ends of the two L-shaped connecting pipes are fixedly connected and communicated with the same three-way pipe. The air outlet at the bottom end of the three-way pipe is fixedly connected and communicated with the top air inlet of an air suction pump. The air suction pump is fixedly connected to the left side wall of the moving frame;

[0009] A plurality of air inlet ports arranged at equal intervals on the outer side of each rotating pipe are fixedly communicated with short exhaust pipes. A same exhaust hood is movably sleeved on the outer sides of the plurality of short exhaust pipes on the outer side of each rotating pipe. Filter nets are fixedly connected to the inner walls of the exhaust hoods. A clamping structure is connected between the exhaust hoods and the plurality of short exhaust pipes arranged on the same side. The clamping structure is used to facilitate the disassembly and assembly of the exhaust hood, so as to achieve the purpose of facilitating the replacement of the filter net.

[0010] A transmission structure is installed on the moving frame and is connected to the left side wall of the digital printing machine main body. The transmission structure can enable the moving frame to move back and forth through the moving driving device, and can cause the two exhaust hoods to swing.

[0011] Preferably, jacks matching the short exhaust pipes are opened at the tops of each of the exhaust hoods.

[0012] Preferably, the clamping structure includes connecting plates fixedly connected to the outer sides of the plurality of short exhaust pipes on the same side. Vertical cross-sectionally I-shaped grooves are opened at both ends of the connecting plates. Inverted L-shaped clamping rods are clamped in the grooves. The inverted L-shaped clamping rods are all slidably sleeved on the outer sides of sliding rods with a vertical cross-sectionally square structure. The sliding rods are all fixedly connected to the outer sides of the exhaust hoods. The vertical cross-sections of the clamping portions of the inverted L-shaped clamping rods are all I-shaped structures.

[0013] Preferably, springs are arranged above the sliding rods and are fixedly connected to the inner side walls of the inverted L-shaped clamping rods at the other ends.

[0014] Preferably, the transmission structure includes an n-shaped transmission plate fixedly connected to the left side wall of the digital printing machine main body. A wavy groove is opened on the n-shaped transmission plate. A transmission rod is movably lapped in the wavy groove.

[0015] Preferably, one end of the transmission rod is fixedly connected to an n-shaped toothed plate. The n-shaped toothed plate is slidably sleeved on the outer side of a guide plate. The bottom end of the guide plate is fixedly connected to the top end of the moving frame. Gears are meshed and connected to both sides of the n-shaped toothed plate. The gears are all fixedly connected to the outer sides of the rotating pipes.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, by setting the clamping structure, manually pushing the two inverted L-shaped clamping rods on the same exhaust hood away from each other, so that the clamping portions of the two inverted L-shaped clamping rods are disengaged from the grooves, and at the same time the springs are stretched, so that the exhaust hood can be disengaged from the connecting plates and the outer sides of the plurality of short exhaust pipes, which is convenient for achieving the purpose of disassembling the exhaust hood, and at the same time is convenient for replacing the filter net;

[0017] By setting the transmission structure, through the forward and backward movement of the moving frame and with the cooperation of multiple components, the two exhaust hoods can swing. By starting the suction pump, the suction range of the two exhaust hoods is wide, and the exhaust effect is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional right side top view structure of an exhaust device for a digital printing machine proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional left-side top view structure of an exhaust device for a digital printing machine proposed by the utility model;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of a disassembled exhaust hood of an exhaust device for a digital printing machine proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of a hood of an exhaust device for a digital printing machine proposed by the utility model after being cut open;

[0022] Figure 5 This is an enlarged structural diagram of position A of an exhaust device for a digital printing machine proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the enlarged structure of position B of an exhaust device for a digital printing machine proposed by the utility model.

[0024] In the figure: 1. main body of digital printing machine; 2. mobile frame; 3. inverted L-shaped bracket; 31. rotating tube; 32. short exhaust pipe; 4. clamping structure; 41. connecting plate; 42. slot; 43. inverted L-shaped clamping rod; 44. sliding rod; 45. spring; 5. exhaust hood; 51. jack; 52. filter; 6. transmission structure; 61. gear; 62. n-type gear plate; 63. guide plate; 64. n-type transmission plate; 65. wave-shaped groove; 66. transmission rod; 7. suction pump; 71. three-way pipe; 72. L-shaped connecting pipe; 73. rotary joint. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0026] Example

[0027] On the one hand, the ventilation is simply performed, and only a fixed-angle ventilation hood 5 is set at the printing position to realize the ventilation operation, but the angle of the ventilation hood 5 cannot be swung, which results in a limited range of ventilation and poor ventilation effect;

[0028] On the one hand, although a filtering structure can be used to filter the sucked air, it is not convenient to disassemble and replace the filtering structure after long-term use, resulting in poor filtering effect in the later stage.

[0029] For this reason, referring to Figures 1-6 , an air extraction device for a digital printing machine, includes a digital printing machine main body 1. A moving frame 2 is installed on the top of the digital printing machine main body 1 through a moving driving device. Two symmetrically arranged inverted L-shaped brackets 3 are fixedly connected to both sides of the top of the moving frame 2. The same rotating pipe 31 is rotatably connected between the two inverted L-shaped brackets 3 on each side. One end of each of the two rotating pipes 31 is closed, and the other end is connected to the rotating end of a rotary joint 73. The other ends of the two rotary joints 73 are fixedly connected and communicated with an L-shaped connecting pipe 72. The other ends of the two L-shaped connecting pipes 72 are fixedly connected and communicated with the same three-way pipe 71. The air outlet at the bottom end of the three-way pipe 71 is fixedly communicated with the air inlet at the top of an air suction pump 7. The air suction pump 7 is fixedly connected to the left side wall of the moving frame 2;

[0030] At each of the multiple equidistantly arranged air inlet positions provided on the outer side of each rotating pipe 31, an air extraction short pipe 32 is fixedly connected and communicated. The outer sides of the multiple air extraction short pipes 32 on the outer side of each rotating pipe 31 are movably sleeved with the same air extraction hood 5. A filter screen 52 is fixedly connected to the inner wall of the air extraction hood 5. A clamping structure 4 is connected between the air extraction hood 5 and the multiple air extraction short pipes 32 provided on the same side. The clamping structure 4 is used to facilitate the disassembly and assembly of the air extraction hood 5, so as to achieve the purpose of facilitating the disassembly and replacement of the filter screen 52;

[0031] A transmission structure 6 is installed on the moving frame 2 and is connected to the left side wall of the digital printing machine main body 1. The transmission structure 6 can cause the two air extraction hoods 5 to swing when the moving frame 2 moves back and forth through the moving driving device.

[0032] In this embodiment, a jack 51 matching the air extraction short pipe 32 is opened at the top of each air extraction hood 5.

[0033] Among them, a sealing ring can be arranged on the inner wall of the jack 51 to seal the movable connection between the air extraction short pipe and the jack 51.

[0034] In this embodiment, in order to facilitate the disassembly and assembly of the air extraction hood 5, a clamping structure 4 is provided, which includes a connecting plate 41 fixedly connected to the outer sides of a plurality of short air extraction pipes 32 on the same side. Both ends of the connecting plate 41 are provided with clamping grooves 42 having a cross-section in an I-shaped structure. In the clamping grooves 42, inverted L-shaped clamping rods 43 are clamped. The inverted L-shaped clamping rods 43 are all slidably sleeved on the outer sides of sliding rods 44 having a cross-section in a square structure. The sliding rods 44 are all fixedly connected to the outer side of the air extraction hood. The cross-sections of the clamping portions of the inverted L-shaped clamping rods 43 are all in an I-shaped structure. Above the sliding rods 44, springs 45 fixedly connected to the outer wall of the air extraction hood are provided. The other ends of the springs 45 are all fixedly connected to the inner side walls of the inverted L-shaped clamping rods 43.

[0035] Among them, by manually pulling the inverted L-shaped clamping rod 43 to move away from the air extraction hood 5, the spring 45 is stretched, and the clamping portion of the inverted L-shaped clamping rod 43 can be disengaged from the clamping groove 42, so that the air extraction hood 5 can be conveniently disassembled from the connecting plate 41, and it is more convenient to use for disassembly and assembly.

[0036] In this embodiment, in order to facilitate the simultaneous angular swing of the two air extraction hoods 5, a transmission structure 6 is provided, which includes an n-shaped transmission plate 64 fixedly connected to the left side wall of the digital printing machine main body 1. A wavy groove 65 is formed in the n-shaped transmission plate 64. A transmission rod 66 is movably lapped in the wavy groove 65. One end of the transmission rod 66 is fixedly connected to an n-shaped tooth plate 62. The n-shaped tooth plate 62 is slidably sleeved on the outer side of a guide plate 63. The bottom end of the guide plate 63 is fixedly connected to the top end of the moving frame 2. Both sides of the n-shaped tooth plate 62 are meshed with gears 61. The gears 61 are all fixedly connected to the outer side of the rotating tube 31.

[0037] Among them, the setting of the guide plate 63 enables the n-shaped tooth plate 62 to only slide vertically up and down on the guide plate 63, and at the same time, the width of the wavy groove 65 is equal to the diameter of the transmission rod 66, avoiding the up and down movement of the n-shaped tooth plate 62.

[0038] Embodiment: When using the air extraction device for the digital printing machine, the moving frame 2 can be driven to move by the moving driving device installed in the digital printing machine main body 1 by the prior art, which will not be specifically described here. Secondly, when the moving frame 2 moves back and forth, at this time, the transmission rod 66 moves in the wavy groove 65, and in cooperation with the shape design of the wavy groove 65, the n-shaped tooth plate 62 moves back and forth with the moving frame 2 and reciprocates up and down, so as to synchronously drive the two gears 61, and then the two rotating tubes 31 swing up and down, thereby driving the two air extraction hoods 5 to swing, so that the air suction ranges of the two air extraction hoods 5 are wide, and the air extraction effect is greatly improved.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0041] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An exhaust device for a digital printing machine, comprising a digital printing machine body (1), a movable frame (2) being installed on the top of the digital printing machine body (1) via a movable drive device, characterized in that: Two symmetrically arranged inverted L-shaped brackets (3) are fixedly connected to both sides of the top of the movable frame (2); the two inverted L-shaped brackets (3) on each side are rotatably connected to a same rotating tube (31); one end of the two rotating tubes (31) are closed, and the other end is connected to the rotating end of a rotating joint (73); the other end of the rotating joint (73) is fixedly connected to an L-shaped connecting tube (72); the other ends of the two L-shaped connecting tubes (72) are fixedly connected to a same three-way pipe (71); the air outlet at the bottom end of the three-way pipe (71) is fixedly connected to the top air inlet of the suction pump (7); the suction pump (7) is fixedly connected to the left side wall of the movable frame (2); A plurality of equally spaced air inlets arranged outside each rotating tube (31) are fixedly connected to an exhaust short tube (32); a same exhaust hood (5) is movably sleeved on the outside of the plurality of exhaust short tubes (32) outside each rotating tube (31); a filter screen (52) is fixedly connected to the inner wall of the exhaust hood (5); a clamping structure (4) is connected between the exhaust hood (5) and the plurality of exhaust short tubes (32) arranged on the same side; the clamping structure (4) is used to facilitate the disassembly and assembly of the exhaust hood (5), thereby achieving the purpose of facilitating the disassembly and replacement of the filter screen (52); The transmission structure (6) is installed on the movable frame (2) and connected to the left side wall of the digital printing machine body (1). The transmission structure (6) can enable the movable frame (2) to move forward and backward through the mobile driving device, and promote the two exhaust hoods (5) to swing.

2. The exhaust device for a digital printing machine according to claim 1, characterized in that: The top of each exhaust hood (5) is provided with an insertion hole (51) which matches with the exhaust short pipe (32).

3. The exhaust device for a digital printing machine according to claim 1, characterized in that: The clamping structure (4) comprises a connecting plate (41) fixedly connected to the outer sides of a plurality of exhaust short pipes (32) on the same side, both ends of the connecting plate (41) are provided with a clamping groove (42) with a vertical cross section in an I-shaped structure, an inverted L-shaped clamping rod (43) is clamped in the clamping groove (42), the inverted L-shaped clamping rod (43) is slidably sleeved on the outer side of a sliding rod (44) with a vertical cross section in a square structure, the sliding rod (44) is fixedly connected to the outer side of the exhaust hood, and the vertical cross section of the clamping part of the inverted L-shaped clamping rod (43) is an I-shaped structure.

4. The exhaust device for a digital printing machine according to claim 3, characterized in that: A spring (45) fixedly connected to the outer wall of the exhaust hood is disposed above the slide bar (44), and the other end of the spring (45) is fixedly connected to the inner wall of the inverted L-shaped clamping rod (43).

5. The exhaust device for a digital printing machine according to claim 1, characterized in that: The transmission structure (6) comprises an n-shaped transmission plate (64) fixedly connected to the left side wall of the digital printing machine body (1), a wave-shaped groove (65) is provided on the n-shaped transmission plate (64), and a transmission rod (66) is movably overlapped in the wave-shaped groove (65).

6. The exhaust device for a digital printing machine according to claim 5, characterized in that: One end of the transmission rod (66) is fixedly connected to an n-shaped toothed plate (62), the n-shaped toothed plate (62) is slidably sleeved on the outer side of the guide plate (63), the bottom end of the guide plate (63) is fixedly connected to the top end of the moving frame (2), both sides of the n-shaped toothed plate (62) are meshingly connected to gears (61), and the gears (61) are fixedly connected to the outer side of the rotating tube (31).

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