Positioning device for cylinder printing

Abstract

The invention discloses a positioning device for cylinder printing, which comprises a pre-positioning mechanism, the pre-positioning mechanism comprises a first clamping assembly and a second clamping assembly, and the first clamping assembly and the second clamping assembly are provided with separation rollers; the first clamping assembly and the second clamping assembly clamp the barrel structures so that the separation rollers can be squeezed between the adjacent barrel structures. The first clamping assembly and the second clamping assembly get close to each other, the barrel structures are clamped between the first clamping assembly and the second clamping assembly, and in the clamping process, the separation rollers are squeezed into the positions between the adjacent barrel structures, so that the adjacent barrel structures are separated, and the situation of mistaken printing is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of printing equipment, and in particular to a positioning device for cylinder printing. Background Art

[0002] When printing cylinder structures in batches, a conveyor belt is often used to carry several cylinder structures, and the conveyor belt transports the cylinder structures to the printing equipment in sequence, and the printing equipment prints on the surface of the cylinder structure. Among them, it is difficult for the conveyor belt to accurately position the cylinder structure to the working position of the printing equipment, resulting in the position of the printed pattern on the surface of the cylinder structure being inconsistent, affecting the regularity of the batch cylinder structure.

[0003] In the related art, the printing equipment is provided with a corresponding positioning mechanism to ensure that the cylinder structure to be printed is positioned at the working position of the printing equipment. However, during the conveying process, adjacent cylinder structures often contact or approach each other, and the positioning mechanism is difficult to separate adjacent cylinder structures, which easily leads to misprinting. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a positioning device for cylinder printing, which can separate adjacent cylinder structures.

[0005] According to the positioning device for cylinder printing of the first aspect embodiment of the present application, the positioning device for cylinder printing includes a pre-positioning mechanism, the pre-positioning mechanism includes a first clamping assembly and a second clamping assembly provided with a separation roller, the first clamping assembly and the second clamping assembly clamp the cylinder structure to squeeze the separation roller between adjacent cylinder structures.

[0006] The positioning device for cylinder printing according to the embodiment of the present application has at least the following beneficial effects: the first clamping assembly and the second clamping assembly are close to each other, clamping the cylinder structure between the two, and during the clamping process, the separating roller squeezes in between adjacent cylinder structures, thereby separating the adjacent cylinder structures and avoiding misprinting.

[0007] According to some embodiments of the present application, the positioning device for cylinder printing also includes a printing positioning mechanism, which includes a third clamping assembly and a fourth clamping assembly. The third clamping assembly and the fourth clamping assembly are used to clamp the cylinder structure after passing through the pre-positioning mechanism to position the cylinder structure to the working position of the printing equipment.

[0008] According to some embodiments of the present application, the positioning device for drum printing also includes a frame, the first clamping assembly and the second clamping assembly can be opened and closed on opposite sides of the frame, and the third clamping assembly and the fourth clamping assembly can be opened and closed on opposite sides of the frame.

[0009] According to some embodiments of the present application, the first clamping assembly includes a first base and a first clamping jaw, the first base is movably disposed on the frame, the first clamping jaw is movably disposed on the first base, and the first clamping jaw is provided with a first clamping roller and the separating roller.

[0010] According to some embodiments of the present application, the second clamping assembly includes a second base and a second clamping jaw, the second base is arranged on the frame, the second clamping jaw is movably arranged on the second base, and the second clamping jaw is provided with a second clamping roller and the separating roller.

[0011] According to some embodiments of the present application, the second clamping assembly further includes a driving assembly, and the driving assembly is used to drive the second clamping roller to rotate, and the second clamping roller drives the cylinder structure to rotate by rotating.

[0012] According to some embodiments of the present application, the third clamping assembly includes a third base and a third clamping jaw, the third base is movably disposed on the frame, the third clamping jaw is movably disposed on the third base, and the third clamping jaw is provided with a third clamping roller.

[0013] According to some embodiments of the present application, the fourth clamping assembly includes a fourth base and a fourth clamping jaw, the fourth base is disposed on the frame, the fourth clamping jaw is movably disposed on the fourth base, and the fourth clamping jaw is provided with a fourth clamping roller.

[0014] According to some embodiments of the present application, the positioning device for cylinder printing also includes a blocking component, which is movably disposed on the frame, and the blocking component is used to block the cylinder structure in the pre-positioning mechanism, or to block the cylinder structure in the printing positioning mechanism.

[0015] According to some embodiments of the present application, the blocking assembly includes a blocking component and a driver that are connected to each other, and the driver disposed on the frame is used to drive the blocking component to move to block or avoid the cylinder structure.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further illustrated below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments embodied in the following drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0018] Figure 1 It is a structural schematic diagram of a positioning device for cylinder printing according to an embodiment of the present application;

[0019] Figure 2 It is a structural schematic diagram of a pre-positioning mechanism in a positioning device for cylinder printing in an embodiment of the present application installed on a frame;

[0020] Figure 3 It is a structural schematic diagram of a printing positioning mechanism in a positioning device for cylinder printing in an embodiment of the present application installed on a frame;

[0021] Figure 4 It is a structural schematic diagram of a blocking component installed on a frame in a positioning device for cylinder printing in an embodiment of the present application;

[0022] Figure 5 It is a side view of a blocking assembly in a positioning device for cylinder printing in an embodiment of the present application installed on a frame;

[0023] Figure 6 It is a structural schematic diagram of a blocking component in a positioning device for cylinder printing according to an embodiment of the present application;

[0024] Figure 7 It is a structural schematic diagram of a first positioning assembly in a positioning device for drum printing in an embodiment of the present application installed on a frame;

[0025] Figure 8 It is a structural schematic diagram of a second positioning assembly in a positioning device for cylinder printing in an embodiment of the present application installed on a frame;

[0026] Fig. 9 This is a positioning device for cylinder printing in the embodiment of the present application. Figure 2 A partial enlarged view of part A;

[0027] Fig.10 It is a structural schematic diagram of a third positioning assembly in a positioning device for drum printing in an embodiment of the present application installed on a frame;

[0028] Fig.11 It is a structural schematic diagram of the fourth positioning component in the positioning device for drum printing in an embodiment of the present application installed on the frame.

[0029] Reference numerals:

[0030] Frame 100; blocking component 101;

[0031] First clamping assembly 200; first base 201; first clamping jaw 202; first clamping roller 203;

[0032] Second clamping assembly 300; second base 301; second clamping jaw 302; second clamping roller 303; separation roller 304; motor 305; pulley 306; synchronous belt 307; take-up roller 308;

[0033] The third clamping assembly 400; the third base 401; the third clamping jaw 402; the third clamping roller 403;

[0034] Fourth clamping assembly 500 ; fourth base 501 ; fourth clamping jaw 502 ; fourth clamping roller 503 . DETAILED DESCRIPTION

[0035] Combine the following Figures 1 to 11 The embodiments of the present application are described in detail, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the description of the present application, if there is a description with reference to the terms "one embodiment", "some embodiments", "an embodiment", "some examples", "some embodiments", "illustrative embodiment", "example", "specific example", "some examples", etc., it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] like Figure 1 As shown, the embodiment of the present application provides a positioning device for cylinder printing, and the positioning device for cylinder printing includes a pre-positioning mechanism. The pre-positioning mechanism defines a pre-positioning position, and the shape of the pre-positioning mechanism matches the shape of the cylinder structure. The pre-positioning mechanism positions the cylinder structure at the pre-positioning position in the form of clamping the cylinder structure. At the same time, the pre-positioning mechanism can separate cylinder structures that are in contact or close to each other during the clamping process to avoid the occurrence of misprinting of adjacent cylinder structures.

[0041] In some examples, such as Figure 2 As shown, the pre-positioning mechanism includes a first clamping assembly 200 and a second clamping assembly 300. The first clamping assembly 200 and the second clamping assembly 300 clamp the cylindrical structure at opposite sides of the cylindrical structure, thereby positioning the cylindrical structure at a pre-positioning position.

[0042] Furthermore, in the batch printing process of the cylinder structure, several cylinder structures are arranged on the top of the conveyor belt in sequence, and the conveyor belt drives each cylinder structure to the pre-positioned position in sequence. At this time, the spacing between adjacent cylinder structures on the top of the conveyor belt is difficult to maintain constant. When the spacing between adjacent cylinder structures is less than the set value, misprinting is prone to occur.

[0043] In order to avoid misprinting caused by too small a distance between adjacent cylinder structures, the first clamping assembly 200 and the second clamping assembly 300 are both provided with a separation roller 304. It can be understood that the first clamping assembly 200 and the second clamping assembly 300 can perform opening and closing movements. As the first clamping assembly 200 and the second clamping assembly 300 approach each other, the separation roller 304 squeezes in between the adjacent cylinder structures, thereby separating the adjacent cylinder structures.

[0044] In some examples, such as Figure 3 As shown, the positioning device for cylinder printing also includes a printing positioning mechanism, which defines the working position of the printing device, that is, the printing positioning position. The printing positioning position corresponds to the printing device, and after the cylinder structure completes the pre-positioning operation of the pre-positioning mechanism, the conveyor belt further conveys the cylinder structure to the printing positioning position, thereby completing the printing. It can be understood that the cylinder structure needs to be accurately positioned at the printing positioning position to ensure the accuracy of printing.

[0045] Furthermore, the printing positioning mechanism includes a third clamping assembly 400 and a fourth clamping assembly 500. Similar to the first clamping assembly 200 and the second clamping assembly 300, the third clamping assembly 400 and the fourth clamping assembly 500 clamp the barrel structure on opposite sides of the barrel structure to prevent the barrel structure from being displaced due to accidental touching by the printing equipment.

[0046] In some examples, the positioning device for drum printing also includes a frame 100, which is used to carry a pre-positioning mechanism and a printing positioning mechanism. The pre-positioning mechanism and the printing positioning mechanism are arranged adjacent to each other to ensure that the drum structure can continue to move after reaching the pre-positioning mechanism to reach the printing positioning mechanism.

[0047] Furthermore, in order to realize the clamping effect of the pre-positioning mechanism and the printing positioning mechanism on the cylinder structure, the first clamping assembly 200 and the second clamping assembly 300 can be opened and closed on the opposite sides of the frame 100, and the third clamping assembly 400 and the fourth clamping assembly 500 can be opened and closed on the opposite sides of the frame 100.

[0048] A space is reserved in the middle of the frame 100 for the cylinder structure to pass through, and the conveyor belt used to transport the cylinder structure is located in this space.

[0049] In some examples, such as Figure 7As shown, the first clamping assembly 200 includes a first base 201 and a first clamping jaw 202, the first base 201 is movably arranged on the frame 100, and the first clamping jaw 202 is connected to the first base 201. Specifically, a screw nut mechanism is provided between the first base 201 and the frame 100, the screw rod here is provided on the frame 100, and is connected with a hand wheel, and the nut component here is provided on the first base 201, and the staff drives the first base 201 to move by turning the hand wheel. It can be understood that a guide rail for guiding is also provided between the first base 201 and the frame 100. Among them, the first base 201 adjusts the initial distance between the first clamping jaw 202 and the second clamping assembly 300 by moving closer to the second clamping assembly 300, or away from the second clamping assembly 300.

[0050] Furthermore, the first clamping jaw 202 is movably disposed on the first base 201, and a guide rail for guiding is disposed between the first clamping jaw 202 and the first base 201. The first clamping jaw 202 moves closer to the second clamping assembly 300, or moves away from the second clamping assembly 300, thereby accurately adjusting the distance between the first clamping jaw 202 and the second clamping assembly 300. In the process of the first clamping jaw 202 moving relative to the first base 201, the first clamping assembly 200 and the second clamping assembly 300 complete the clamping and positioning of the cylinder structure.

[0051] In addition, the shape of the first clamping jaw 202 is adapted to the outer shape of the cylinder structure, and the first clamping jaw 202 is provided with a plurality of first clamping rollers 203, each of which is used to contact the side wall of the cylinder structure. At the same time, each first clamping roller 203 is connected to the first clamping jaw 202 through a rotating shaft to ensure that each first clamping roller 203 can rotate freely. Specifically, the first clamping jaw 202 is provided with three first clamping rollers 203.

[0052] It is worth noting that the separation roller 304 is also arranged on the first clamping jaw 202 through the rotating shaft, and its structure is the same as that of the first clamping roller 203, but the arrangement position is different from that of the first clamping roller 203. Specifically, the separation roller 304 on the first clamping jaw 202 is located on the side of the first clamping jaw 202 for receiving the cylindrical structure. When the first clamping jaw 202 approaches the second clamping assembly 300, the separation roller 304 gradually squeezes into the gap between adjacent cylindrical structures, so that the adjacent cylindrical structures are separated at a preset interval.

[0053] In some examples, such as Figure 8 and Fig. 9 As shown, the second clamping assembly 300 includes a second base 301 and a second clamping jaw 302 . The second base 301 is disposed on the frame 100 , and the second clamping jaw 302 is connected to the second base 301 .

[0054] Further, the second clamping jaw 302 is movably disposed on the second base 301. It is understandable that a guide rail for guiding is disposed between the second clamping jaw 302 and the second base 301. The second clamping jaw 302 moves closer to the first clamping assembly 200 or away from the first clamping assembly 200, and the first clamping jaw 202 and the second clamping jaw 302 move to open and close, thereby completing the clamping and positioning of the cylinder structure.

[0055] In addition, the shape of the second clamping jaw 302 is adapted to the outer shape of the cylinder structure, and the second clamping jaw 302 is provided with a plurality of second clamping rollers 303, each of which is used to contact the side wall of the cylinder structure. At the same time, each second clamping roller 303 is connected to the second clamping jaw 302 through a rotating shaft to ensure that each second clamping roller 303 can rotate freely. Specifically, the second clamping jaw 302 is provided with two second clamping rollers 303.

[0056] It is worth noting that the separating roller 304 is arranged on the second clamping jaw 302 through a rotating shaft, and its structural form is the same as that of the second clamping roller 303, but the setting position is different from that of the second clamping roller 303. Specifically, the separating roller 304 on the second clamping jaw 302 is located on the side of the second clamping jaw 302 for receiving the cylindrical structure. When the second clamping jaw 302 approaches the first clamping assembly 200, the separating roller 304 gradually squeezes into the gap between adjacent cylindrical structures, so that the adjacent cylindrical structures are separated at a preset interval.

[0057] In some examples, the second clamping assembly 300 further includes a driving assembly, which includes a pulley 306 , a synchronous belt 307 , and a motor 305 that drives the pulley 306 to rotate.

[0058] The motor 305 is provided at the second clamping jaw 302, and drives the pulley 306 to rotate through the rotating shaft. At the same time, the rotating shaft of each second clamping roller 303 is also provided with a pulley, and each pulley realizes synchronous transmission through the synchronous belt 307, so that the motor 305 can drive the second clamping roller 303 to rotate. Since the second clamping roller 303 is in contact with the cylinder structure at the pre-positioned position, the second clamping roller 303 can drive the cylinder structure to rotate and adjust the cylinder structure to the printing zero point state.

[0059] In addition, the second clamping jaw 302 is further provided with a tightening roller 308 , and the tightening roller 308 contacts the synchronous belt 307 , thereby tensioning the synchronous belt 307 , ensuring that each pulley 306 and the synchronous belt 307 are tightly driven.

[0060] In some examples, such as Fig.10As shown, the third clamping assembly 400 includes a third base 401 and a third clamping jaw 402. The third base 401 is movably arranged on the frame 100, and the third clamping jaw 402 is connected to the third base 401. Similar to the first clamping assembly 200, a screw nut mechanism is provided between the third base 401 and the frame 100, and a hand wheel is provided. The staff drives the first base 201 to move by turning the hand wheel. Among them, the third base 401 is moved closer to the fourth clamping assembly 500, or away from the fourth clamping assembly 500, so as to adjust the initial distance between the third clamping jaw 402 and the fourth clamping assembly 500.

[0061] Furthermore, the third clamping jaw 402 is movably disposed on the third base 401 , and the third clamping jaw 402 can precisely adjust the distance between the third clamping jaw 402 and the fourth clamping assembly 500 by moving closer to the fourth clamping assembly 500 or away from the fourth clamping assembly 500 .

[0062] In addition, the shape of the third clamping jaw 402 is adapted to the outer shape of the cylinder structure, and the third clamping jaw 402 is provided with a plurality of third clamping rollers 403, each of which is used to contact the side wall of the cylinder structure.

[0063] In some examples, such as Fig.11 As shown, the fourth clamping assembly 500 includes a fourth base 501 and a fourth clamping jaw 502 . The fourth base 501 is disposed on the frame 100 , and the fourth clamping jaw 502 is connected to the fourth base 501 .

[0064] Similar to the second clamping assembly 300, the fourth clamping jaw 502 is movably disposed on the fourth base 501. It is understandable that a guide rail is provided between the fourth clamping jaw 502 and the fourth base 501. The fourth clamping jaw 502 moves closer to the third clamping assembly 400 or away from the third clamping assembly 400, and the third clamping jaw 402 and the fourth clamping jaw 502 move to open and close, thereby completing the clamping and positioning of the cylinder structure.

[0065] Meanwhile, the shape of the fourth clamping jaw 502 is adapted to the outer shape of the cylinder structure, and the fourth clamping jaw 502 is provided with a plurality of fourth clamping rollers 503, each of which is used to contact the side wall of the cylinder structure.

[0066] In some examples, such as Figure 4 , Figure 5 and Figure 6 As shown, the positioning device for drum printing further includes a blocking assembly, which is provided in two groups and is located at the bottom of the frame 100 .

[0067] The cylindrical structure conveyed by the conveyor belt stops moving forward under the interference of the first group of blocking components, initially reaches the pre-positioning position, and is then accurately positioned at the pre-positioning position by the first clamping component 200 and the second clamping component 300.

[0068] When the drum structure at the pre-positioned position needs to be further transferred to the printing positioning position, the first group of blocking components avoids the traveling passage of the drum structure. During the traveling process of the drum structure, the drum structure stops moving under the interference of the second group of blocking components, initially reaches the printing positioning position, and is then accurately positioned at the printing positioning position by the third clamping component 400 and the fourth clamping component 500.

[0069] In some examples, the blocking assembly includes a blocking component 101 and a driver that are connected to each other. The driver is disposed on the frame 100 and is used to drive the blocking component 101 to telescopically move, thereby blocking or avoiding the cylinder structure.

[0070] During the actual implementation process, the conveyor belt drives the cylinder structure to move to contact the first group of blocking components, the first clamping component 200 and the second clamping component 300 clamp and position the cylinder structure, and separate adjacent cylinder structures; the driving component drives the second clamping roller 303 to rotate, thereby driving the cylinder structure to rotate to the zero point state; the conveyor belt drives the cylinder structure to move to contact the second blocking component, the third clamping component 400 and the fourth clamping component 500 clamp and position the cylinder structure that is already in the zero point state, to ensure that the cylinder structure is accurately in the printing positioning position, so that the subsequent printing process can proceed normally.

[0071] The above is a detailed description of the implementation methods of the present application in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A positioning device for cylinder printing, characterized in that: include: The pre-positioning mechanism comprises a first clamping assembly and a second clamping assembly provided with a separation roller, wherein the first clamping assembly and the second clamping assembly squeeze the separation roller between adjacent cylinder structures by clamping the cylinder structure.

2. The positioning device for cylinder printing according to claim 1, characterized in that: The positioning device for cylinder printing also includes a printing positioning mechanism, which includes a third clamping assembly and a fourth clamping assembly. The third clamping assembly and the fourth clamping assembly are used to clamp the cylinder structure after passing through the pre-positioning mechanism to position the cylinder structure to the working position of the printing equipment.

3. The positioning device for cylinder printing according to claim 2, characterized in that: The positioning device for cylinder printing also includes a frame, the first clamping assembly and the second clamping assembly can be opened and closed on opposite sides of the frame, and the third clamping assembly and the fourth clamping assembly can be opened and closed on opposite sides of the frame.

4. The positioning device for cylinder printing according to claim 3, characterized in that: The first clamping assembly includes a first base and a first clamping jaw, the first base is movably arranged on the frame, the first clamping jaw is movably arranged on the first base, and the first clamping jaw is provided with a first clamping roller and the separating roller.

5. The positioning device for cylinder printing according to claim 3, characterized in that: The second clamping assembly includes a second base and a second clamping jaw, the second base is arranged on the frame, the second clamping jaw is movably arranged on the second base, and the second clamping jaw is provided with a second clamping roller and the separating roller.

6. The positioning device for cylinder printing according to claim 5, characterized in that: The second clamping assembly further comprises a driving assembly, and the driving assembly is used to drive the second clamping roller to rotate, and the second clamping roller drives the cylinder structure to rotate by rotating.

7. The positioning device for cylinder printing according to claim 3, characterized in that: The third clamping assembly comprises a third base and a third clamping jaw. The third base is movably arranged on the frame. The third clamping jaw is movably arranged on the third base. The third clamping jaw is provided with a third clamping roller.

8. The positioning device for cylinder printing according to claim 3, characterized in that: The fourth clamping assembly comprises a fourth base and a fourth clamping jaw, wherein the fourth base is arranged on the frame, the fourth clamping jaw is movably arranged on the fourth base, and the fourth clamping jaw is provided with a fourth clamping roller.

9. The positioning device for cylinder printing according to claim 3, characterized in that: The positioning device for cylinder printing also includes a blocking component, which is movably arranged on the frame and is used to block the cylinder structure in the pre-positioning mechanism or the cylinder structure in the printing positioning mechanism.

10. The positioning device for cylinder printing according to claim 9, characterized in that: The blocking assembly includes a blocking component and a driver that are connected to each other. The driver arranged on the frame is used to drive the blocking component to move so as to block or avoid the cylinder structure.

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