Feeding mechanism of roll printing machine and roll printing machine

Abstract

The feeding mechanism of the roll printing machine comprises a machine table, a material barrel is arranged on the machine table, a preset included angle is formed between the bottom of the material barrel and the horizontal plane, and a screening clamping opening is formed in the material barrel; the rotary table is rotationally arranged at the bottom of the material barrel, and a plurality of clamping grooves are formed in the edge of the rotary table; the power assembly is in driving connection with the turntable; and the first feeding guide rail is communicated with the screening bayonet, and when the rotating disc rotates, the products correctly positioned in the clamping grooves are guided by the first feeding guide rail to be separated from the material barrel from the screening bayonet. Compared with the prior art, the feeding mechanism of the roll printing machine has the advantages that each product can be conveyed to the next procedure in a correct posture, manual work is not needed in automatic screening, the products are not prone to being stuck in the screening process, the structure is simple, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller printing, in particular to a feeding mechanism of a roller printing machine and the roller printing machine. Background Art

[0002] The conventional silk-screen printing process requires manual handling of the product and placing it on a roller printing machine to print patterns and text. To ensure the printing position is the same for each product, a positioning fixture is required to fix the product's shape and direction. This plays a role in positioning and ensuring the same silk-screen printing position for each product. Manual handling is required to manually pick up each product, position it, print it, and then remove it. This process is repeated for each product, making the work complex and labor-intensive. Uninterrupted operation is not possible, which hinders work efficiency and increases labor costs. Furthermore, the roller printing cycle is lengthened, making errors more likely and leading to a higher scrap rate. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a feeding mechanism of a roller printing machine and a roller printing machine.

[0004] One embodiment of the present invention provides a feeding mechanism for a roller printing machine, comprising:

[0005] A machine platform, wherein a material barrel is provided on the machine platform, wherein the bottom of the material barrel forms a preset angle with respect to the horizontal plane, wherein the preset angle is greater than 0° and less than 90°, and a screening bayonet is provided in the material barrel, wherein the screening bayonet is located at the edge of the highest point of the bottom of the material barrel relative to the horizontal plane;

[0006] A turntable, the turntable being rotatably disposed at the bottom of the material barrel, wherein a plurality of slots are provided on the edge of the turntable, and the slots are evenly arranged around the circumference of the turntable;

[0007] A power assembly, the power assembly being drivingly connected to the turntable;

[0008] The first feed guide rail extends into the material barrel, and the first feed guide rail is connected to the screening bayonet. When the turntable rotates, the product correctly positioned in the slot is separated from the material barrel from the screening bayonet under the guidance of the first feed guide rail.

[0009] In some optional embodiments, the preset angle is not less than 20° and not more than 45°.

[0010] In some optional embodiments, the height of the screening port relative to the bottom of the material barrel matches the thickness of the product.

[0011] In some optional embodiments, a material guide portion is provided on the first feed guide rail, the material guide portion extends into the material barrel, and the material guide portion is located between the turntable and the bottom of the material barrel. The product correctly positioned in the slot is separated from the material barrel from the screening port under the guidance of the material guide portion.

[0012] In some optional embodiments, the loading mechanism of the roller printing machine also includes a screening guide rail connected to the first feed guide rail, the screening guide rail includes a side rail and a bottom rail, the side rail is arranged on one side of the bottom rail, and the width of the bottom rail is smaller than the thickness of the product.

[0013] In some optional embodiments, the width of the bottom rail is not less than half the thickness of the product and not more than three quarters the thickness of the product.

[0014] In some optional embodiments, the feeding mechanism of the roller printing machine further includes a return material guide rail, which is arranged on a side of the bottom rail away from the side rail, and the return material guide rail is connected to the material barrel.

[0015] In some optional embodiments, the loading mechanism of the roller printing machine further includes a flip guide rail, the first feeding guide rail is connected to the screening guide rail through the flip guide rail, and the flip guide rail spirally extends in a direction from the first feeding guide rail to the screening guide rail.

[0016] In some optional embodiments, the feeding mechanism of the roller printing machine further includes a second feeding guide rail, and the first feeding guide rail is connected to the second feeding guide rail through the screening guide rail.

[0017] Another embodiment of the present invention provides a roller printing machine, comprising: a feeding mechanism of the roller printing machine as described above.

[0018] Compared with the existing technology, the feeding mechanism of the roller printing machine of the utility model can convey each product to the next process in the correct posture, and the automatic screening does not require manual labor. The product is not easy to get stuck during the screening process. It has a simple structure, is easy to operate, and saves time and effort.

[0019] In order to more clearly understand the present invention, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a feeding mechanism of a roller printing machine according to an embodiment of the present invention;

[0021] Figure 2 This is an exploded view of a feeding mechanism of a roller printing machine according to one embodiment of the present invention;

[0022] Figure 3A cross-sectional view of a feeding mechanism of a roller printing machine according to an embodiment of the present invention;

[0023] Figure 4 for Figure 3 An enlarged view of point A is shown;

[0024] Figure 5 This is a partial structural diagram of a feeding mechanism of a roller printing machine according to one embodiment of the present invention;

[0025] Figure 6 A cross-sectional view of another cross-section of the feeding mechanism of the roller printing machine according to one embodiment of the present invention;

[0026] Figure 7 for Figure 6 An enlarged view of point B is shown;

[0027] Figure 8 This is a cross-sectional view of a screening guide rail according to an embodiment of the present invention when the screening guide rail is on the front side of the bottle cap facing the side rail;

[0028] Figure 9 This is a diagram of the process of bottle caps being screened and dropped when the screening guide rail according to one embodiment of the present invention is positioned with the reverse side of the bottle caps facing the side rails.

[0029] Description of reference numerals:

[0030] 10. Machine; 11. Material barrel; 111. Support ring; 12. Screening bayonet; 20. Turntable; 21. Card slot; 30. Power assembly; 40. First feed guide rail; 41. Material guide unit; 50. Product; 60. Screening guide rail; 61. Side rail; 62. Bottom rail; 70. Return guide rail; 80. Flip guide rail; 90. Second feed guide rail. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0033] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this utility model, reference to the terms "one embodiment," "some optional implementations," or "some optional embodiments" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. 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 suitable manner in any one or more embodiments or examples.

[0035] See also Figures 1 to 4 One embodiment of the present invention provides a feeding mechanism for a roller printing machine, comprising:

[0036] The machine platform 10 is provided with a material barrel 11. The bottom of the material barrel 11 forms a predetermined angle a relative to the horizontal plane, wherein the predetermined angle a is greater than 0° and less than 90°. A screening opening 12 is provided within the material barrel 11, located at the edge of the highest point of the bottom of the material barrel 11 relative to the horizontal plane. In this embodiment, a support ring 111 is provided at the bottom of the material barrel 11 for supporting the product 50. The support ring 111 forms a predetermined angle a relative to the horizontal plane.

[0037] The turntable 20 is rotatably disposed at the bottom of the material barrel 11 . A plurality of slots 21 are disposed on the edge of the turntable 20 . The slots 21 are evenly arranged around the circumference of the turntable 20 .

[0038] The power assembly 30 is connected to the turntable 20 in a driving manner. The power assembly 30 can be a motor, which is arranged on the machine 10 and has an output shaft connected to the turntable 20 in a driving manner.

[0039] The first feeding guide rail 40 extends into the material barrel 11 and is connected to the screening bayonet 12 .

[0040] Put multiple products 50 into the material barrel 11. When the turntable 20 rotates, the multiple products 50 are driven by the turntable 20 to move. After moving, the products 50 enter the card slot 21. When the products 50 enter the card slot 21, please refer to Figure 4 , some products 50 are not correctly positioned by the slot 21. The products 50 that are not correctly positioned by the slot 21 may be tilted relative to the slot 21 or tilted relative to the slot 21. The products 50 that are correctly positioned in the slot 21 are in contact with the bottom of the material barrel 11 and will not be tilted relative to the slot 21. As the turntable 20 rotates, the products 50 that are correctly positioned in the slot 21 are separated from the material barrel 11 from the screening port 12 under the guidance of the first feeding guide rail 40. Then, the products 50 that are correctly positioned in the slot 21 will be conveyed to the next process, and the products 50 that are not correctly positioned in the slot 21 will be conveyed to the next process. When moving toward the screening bayonet 12 under the guidance of the feed guide rail 40, the product 50 that is not correctly positioned by the slot 21 cannot pass through the screening bayonet 12, resulting in the product 50 that is not correctly positioned by the slot 21 gradually leaving the slot 21, and because the bottom of the material barrel 11 is inclined relative to the horizontal plane, the product 50 that is not correctly positioned by the slot 21 will move to the bottom of the bottom of the material barrel 11 relative to the horizontal plane due to its own gravity after leaving the slot 21, so that the product 50 that is not correctly positioned by the slot 21 will not be stuck in the screening buckle 12, thereby realizing automatic screening of the product 50.

[0041] In this embodiment, the turntable 20 is substantially parallel to the bottom of the material barrel 11. In some optional embodiments, the preset angle a is not less than 20° and not more than 45°. In this embodiment, the preset angle a is 35°.

[0042] In the present invention, the product 50 is a cover body such as a bottle cap, which is cylindrical and has a front and back side. The cover opening of the bottle cap is preset on the back side of the bottle cap.

[0043] The screening method of the screening bayonet 12 can be appropriately designed according to actual needs. For example, in this embodiment, the height of the screening bayonet 12 relative to the bottom of the material barrel 11 matches the thickness of the product 50. The product 50 that is not correctly positioned by the slot 21 is tilted and tilted relative to the slot 21. The maximum height of the product 50 that is not correctly positioned by the slot 21 relative to the bottom of the material barrel 11 is greater than the height of the screening bayonet 12 relative to the bottom of the material barrel 11, resulting in the product 50 being unable to pass through the screening bayonet 12. The front or back of the product 50 that is correctly positioned in the slot 21 is stably abutted against the bottom of the material barrel 11, and the maximum height of the product 50 that is correctly positioned in the slot 21 relative to the bottom of the material barrel 11 will not be greater than the height of the screening bayonet 12 relative to the bottom of the material barrel 11. Therefore, the product 50 can smoothly pass through the screening bayonet 12, thereby achieving the first screening of the product 50. Of course, in other methods, since the side of the product 50 is facing the screening port 12, the screening port 12 is designed to match the side shape of the product 50. When the product 50 is tilted, the posture of the product 50 will change and it will not be able to pass through the screening port 12.

[0044] The opening edge of the card slot 21 can be chamfered with a rounded corner, which is beneficial for the product 50 to smoothly enter and exit the card slot 21 and avoid wear of the product 50.

[0045] See also Figure 5 To facilitate the first feed rail 40 in guiding the product 50 out of the material barrel 11, in some optional embodiments, the first feed rail 40 is provided with a guide portion 41. The guide portion 41 extends into the material barrel 11 and is located between the turntable 20 and the bottom of the material barrel 11. The product 50 correctly positioned in the slot 21 is guided by the guide portion 41 to exit the material barrel 11 through the screening port 12. In this embodiment, the guide portion 41 extends between the turntable 20 and the support ring 111.

[0046] See also Figure 6 and Figure 7 In some optional embodiments, the loading mechanism of the roller printing machine further includes a screening guide rail 60 connected to the first feeding guide rail 40. The screening guide rail 60 includes a side rail 61 and a bottom rail 62. The side rail 61 is arranged on one side of the bottom rail 62. The width of the bottom rail 62 is less than the thickness of the product 50. This screening method is suitable for the situation where the center of gravity and the center position of the product 50 do not coincide. In this embodiment, the product 50 is a cap such as a bottle cap. The side where the cap opening of the bottle cap is located is preset as the back side of the bottle cap, and the side of the bottle cap opposite to the back side is the front side. The side between the front and back sides is a curved side. When the bottle cap passes through the screening guide rail 60, the side of the bottle cap rolls along the lower rail. Please refer to Figure 8Since the center of gravity of the bottle cap is close to the front of the bottle cap, the width of the bottom rail 62 is designed so that when the front of the bottle cap faces the side rail 61, the center of gravity of the bottle cap is located directly above the bottom rail 62. At this time, the bottle cap will not fall off the bottom rail 62. The side rail 61 can prevent the product 50 from tilting, which is conducive to maintaining the posture of the product 50. When the bottle cap passes through the bottom rail 62, it can abut the side rail 61; please refer to Figure 9 When the back of the bottle cap faces the side rail 61, the center of gravity of the bottle cap is located outside the bottom rail 62, and the bottle cap will fall from the screening guide rail 60 due to its own gravity, so that only the bottle cap with the front facing the side rail 61 can pass through the screening guide rail 60 and then enter the next process for the second screening. After the first and second screenings, the bottle caps delivered by the feeding mechanism of the roller printing machine are in the same posture, which is convenient for the next steps of positioning, printing and other processes of the bottle caps.

[0047] In some optional embodiments, the width of the bottom rail 62 is not less than half the thickness of the product 50 and not more than three quarters of the thickness of the product 50, so that when the front of the bottle cap faces the side rail 61, the bottom rail 62 has sufficient area to stably support the bottle cap, so that the bottle cap passes through the bottom rail 62 and is not easily dropped. When the back of the bottle cap faces the side rail 61, the bottle cap can fall by gravity and is not easily dropped through the bottom rail 62. In this embodiment, the width of the bottom rail 62 is two-thirds of the thickness of the product 50.

[0048] In some optional embodiments, the loading mechanism of the roller printing machine also includes a return material guide rail 70, which is arranged on the side of the bottom rail 62 away from the side rail 61. The return material guide rail 70 is connected to the material barrel 11. The products 50 that fall from the screening guide rail 60 will be transported back to the material barrel 11 through the return material guide rail 70 for further screening.

[0049] In some optional embodiments, the loading mechanism of the roller printing machine further includes a flip guide rail 80. The first feed guide rail 40 is connected to the screening guide rail 60 via the flip guide rail 80. The flip guide rail 80 extends spirally in the direction from the first feed guide rail 40 to the screening guide rail 60. Since the product 50 is in an inclined position relative to the horizontal plane when it is released from the screening bayonet 12, the flip guide rail 80 can be used to adjust the position of the product 50 so that the product 50 can stably enter the screening guide rail 60. In this embodiment, the flip guide rail 80 guides the bottle cap to flip so that the front and back of the bottle cap are perpendicular to the horizontal plane. Since the side of the bottle cap is a ring surface, the bottle cap can rely on the side to roll along the bottom rail 62 without the need for additional power.

[0050] In some optional embodiments, the loading mechanism of the roller printing machine further includes a second feed track 90. ​​The first feed track 40 is connected to the second feed track 90 via the screening track 60. In this embodiment, the first feed track 40, the flipping track 80, the screening track 60, and the second feed track 90 are sequentially connected. The second feed track 90 is used to transport the product 50 to the next process.

[0051] A plurality of adjustable feet can be provided at the bottom of the machine platform 10 to facilitate adjustment of the angle of the machine platform 10 , thereby adjusting the size of a preset angle a between the bottom of the material barrel 11 and the horizontal plane.

[0052] The above-mentioned feeding mechanism of the roller printing machine can be applied to a roller printing machine, and the roller printing machine includes: a feeding mechanism of the roller printing machine as described above.

[0053] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism of a roller printing machine, characterized in that: include: A machine platform, wherein a material barrel is provided on the machine platform, wherein the bottom of the material barrel forms a preset angle with respect to the horizontal plane, wherein the preset angle is greater than 0° and less than 90°, and a screening bayonet is provided in the material barrel, wherein the screening bayonet is located at the edge of the highest point of the bottom of the material barrel relative to the horizontal plane; A turntable, the turntable being rotatably disposed at the bottom of the material barrel, wherein a plurality of slots are provided on the edge of the turntable, and the slots are evenly arranged around the circumference of the turntable; A power assembly, the power assembly being drivingly connected to the turntable; The first feed guide rail extends into the material barrel, and the first feed guide rail is connected to the screening bayonet. When the turntable rotates, the product correctly positioned in the slot is separated from the material barrel from the screening bayonet under the guidance of the first feed guide rail.

2. The feeding mechanism of a roller printing machine according to claim 1, characterized in that: The preset angle is not less than 20° and not more than 45°.

3. The feeding mechanism of a roller printing machine according to claim 1, characterized in that: The height of the screening bayonet relative to the bottom of the material barrel matches the thickness of the product.

4. The feeding mechanism of a roller printing machine according to claim 1, characterized in that: A material guide portion is provided on the first feed guide rail, and the material guide portion extends into the material barrel. The material guide portion is located between the turntable and the bottom of the material barrel. The product correctly positioned in the slot is separated from the material barrel from the screening port under the guidance of the material guide portion.

5. A feeding mechanism for a roller printing machine according to any one of claims 1 to 4, characterized in that: It also includes a screening guide rail connected to the first feeding guide rail, the screening guide rail includes a side rail and a bottom rail, the side rail is arranged on one side of the bottom rail, and the width of the bottom rail is smaller than the thickness of the product.

6. The feeding mechanism of a roller printing machine according to claim 5, characterized in that: The width of the bottom rail is not less than one half of the thickness of the product and not more than three quarters of the thickness of the product.

7. The feeding mechanism of a roller printing machine according to claim 5, characterized in that: It also includes a material return guide rail, which is arranged on a side of the bottom rail away from the side rails, and the material return guide rail is connected to the material barrel.

8. The feeding mechanism of a roller printing machine according to claim 5, characterized in that: It also includes a turning guide rail, through which the first feeding guide rail is connected to the screening guide rail, and the turning guide rail spirally extends in a direction from the first feeding guide rail to the screening guide rail.

9. The feeding mechanism of a roller printing machine according to claim 5, characterized in that: It also includes a second feed guide rail, and the first feed guide rail is connected to the second feed guide rail through the screening guide rail.

10. A roller printing machine, characterized in that: include: A feeding mechanism for a roller printing machine as claimed in any one of claims 1 to 9.

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