A conveying device for printing and processing paper packaging boxes

Abstract

The present invention discloses a conveying device for printing and processing paper packaging boxes, which relates to the technical field of packaging box processing, comprising a support base, on which a printing roller, a conveying roller 1 and a conveyor belt are installed, the conveying roller 1 is provided as a plurality of symmetrically arranged about the printing roller, and the conveying belt is provided as two symmetrically arranged about the printing roller; a conveying roller 2 is provided directly below the printing roller, and the conveying roller 2 has the same structure as the conveying roller 1; the distance between the top end of the conveying roller 2 and the bottom end of the printing roller is smaller than the distance between the top end of the conveying roller 1 and the bottom end of the printing roller; a slider is rotatably installed on the conveying roller 2, and the slider is elastically slidably connected to the support base in the vertical direction; the support base is provided with a start-stop unit, and the start-stop unit drives the printing roller to start working after the conveying roller 2 moves downward; the present invention can enable the printed pattern on the packaging box cardboard to maintain the same position.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging box processing, in particular to a conveying device used for printing processing of paper packaging boxes. Background Art

[0002] The conveying work of the existing paper packaging box printing is carried out by a combination of a conveyor belt, a conveyor roller and a printing roller, as shown in the attached Figure 1 As shown, due to printing needs, the distance between the bottom end of the printing roller and the top end of the conveying roller is less than the thickness of the cardboard. When the packaging box cardboard moves in the direction of v1 so that its left end contacts the bottom end of the printing roller, the printing roller will exert downward pressure on the packaging box cardboard, which will hinder the packaging box cardboard from moving to the left. The packaging box cardboard will tend to stagnate briefly, and this tendency will change due to the magnitude of the friction force on the packaging box cardboard, which is difficult to control. At this time, the rotation of the printing roller is not affected, and the printing roller will rotate normally in the direction of v2, which will cause the printing area z on the printing roller to contact the packaging box cardboard in advance, and the printed pattern on the packaging box cardboard will be offset, making product consistency difficult to control. Summary of the Invention

[0003] The object of the present invention is to provide a conveying device for printing and processing paper packaging boxes to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a conveying device for printing and processing paper packaging boxes, comprising a support base, on which a printing roller, a conveying roller 1 and a conveyor belt are installed, the conveying roller 1 is arranged as a plurality of symmetrically arranged about the printing roller, and the conveying belt is arranged as two symmetrically arranged about the printing roller; a conveying roller 2 is arranged directly below the printing roller, and the conveying roller 2 has the same structure as the conveying roller 1; the distance between the top end of the conveying roller 2 and the bottom end of the printing roller is smaller than the distance between the top end of the conveying roller 1 and the bottom end of the printing roller; a slider is rotatably installed on the conveying roller 2, and the slider is elastically slidably connected to the support base in the vertical direction; the support base is provided with a start-stop unit, and the start-stop unit drives the printing roller to start working after the conveying roller 2 moves downward; a driving unit is provided on the inner side of the support base for driving the conveying roller 1, the conveying roller 2 and the printing roller to convey the packaging box cardboard at the same speed.

[0005] As a further solution of the present invention, the driving unit includes a first sprocket and a driving head; the first sprocket is fixedly mounted on the rotating shaft of the printing roller, and the first sprocket is connected to the second sprocket through a first chain transmission; the rotating shaft of the second sprocket is fixedly connected to a first gear, the first gear is meshed with a second gear, the rotating shaft of the second gear is fixedly connected to a third sprocket, and the second sprocket and the third sprocket are both rotatably connected to the support seat; the rotating shafts of the conveying roller one and the conveying roller two are fixedly connected to a fourth sprocket, and the third sprocket and the fourth sprocket are connected through a second chain transmission; the driving head is used to drive the printing roller to rotate.

[0006] As a further solution of the present invention, the drive head includes a magnetic coupling and a motor; both ends of the magnetic coupling are connected to the printing roller and the motor respectively; and the motor is installed on a support seat.

[0007] As a further solution of the present invention, the start-stop unit includes a locking plate, which is fixedly mounted on the rotating shaft of the printing roller; a positioning block is fixedly mounted on the locking plate; the support seat is slidably connected to a limiting rod in the vertical direction, and the limiting rod can limit the positioning block; the limiting rod is rotatably connected to the second conveyor roller.

[0008] As a further solution of the present invention, a rotation groove is provided on the locking disk, and the positioning block can slide in the rotation groove; the positioning block is kept relatively fixed to the locking disk by a locking member.

[0009] As a further solution of the present invention, the locking member includes a bolt and a nut; the bolt is fixedly connected to the locking plate; the nut is arranged on the outside of the positioning block; after the nut is tightened, the positioning block and the locking plate are relatively fixed.

[0010] As a further solution of the present invention, a mounting plate is fixedly connected to the support seat, and a plurality of equidistantly arranged correction blocks are rotatably connected to the mounting plate; a sliding column is fixedly connected to the side wall of the correction block, and a sliding groove is provided on the side wall of the correction block; the sliding column can slide and cooperate with the sliding groove on the adjacent correction block.

[0011] As a further solution of the present invention, two symmetrically arranged guide rods are provided above the conveyor belt.

[0012] Compared with the prior art, the present invention has the following beneficial effects: BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side view of a conveying device for printing paper packaging boxes in the prior art;

[0014] Figure 2 This is a schematic structural diagram of a conveying device for printing and processing paper packaging boxes according to the present invention;

[0015] Figure 3 is a schematic cross-sectional view of the conveying device of the present invention;

[0016] Figure 4 Schematic diagram of the drive unit structure of the present invention;

[0017] Figure 5 This is a schematic diagram of the start-stop unit structure of the present invention;

[0018] Figure 6 It is a partial structural diagram of the present invention;

[0019] Figure 7 This is a schematic diagram of the correction block structure of the present invention;

[0020] Figure 8 This is a working principle diagram of the present invention.

[0021] The reference numerals are as follows:

[0022] 1-support seat, 2-printing roller, 3-conveyor roller 1, 4-conveyor belt, 5-first sprocket, 6-second sprocket, 7-first chain, 8-first gear, 9-second gear, 10-third sprocket, 11-fourth sprocket, 12-second chain, 13-locking plate, 14-positioning block, 15-limiting rod, 16-rotating groove, 17-bolt, 18-nut, 19-magnetic coupling, 20-motor, 21-mounting plate, 22-correction block, 23-slide column, 24-slide groove, 25-guide rod, 26-slider, 27-conveyor roller 2. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 2-Figure 8, x in the accompanying drawings represents packaging box cardboard, the present invention provides a technical solution: a conveying device for printing and processing paper packaging boxes, comprising a support base 1, on which a printing roller 2, a conveying roller 3 and a conveyor belt 4 are installed, the conveying roller 3 is arranged in a plurality of symmetrical arrangements about the printing roller 2, and the conveying belt 4 is arranged in two symmetrical arrangements about the printing roller 2; a conveying roller 2 27 is arranged directly below the printing roller 2, and the conveying roller 2 27 has the same structure as the conveying roller 1 3; the distance between the top end of the conveying roller 27 and the bottom end of the printing roller 2 is smaller than the distance between the top end of the conveying roller 1 3 and the bottom end of the printing roller 2; a slider 26 is rotatably installed on the conveying roller 27, and the slider 26 is elastically slidably connected to the support base 1 in the vertical direction; the support base 1 is provided with a start-stop unit, which drives the printing roller 2 to start working after the conveying roller 2 27 moves downward; a driving unit for driving the conveying roller 1 3, the conveying roller 2 27 and the printing roller 2 to convey the packaging box cardboard at the same speed is provided on the inner side of the support base 1.

[0025] refer to Figure 2-Figure 3 , when the left conveyor belt 4 conveys the packaging box cardboard from right to left, the conveyor belt 4 applies a left thrust to the packaging box cardboard; when the left end of the packaging box cardboard contacts the conveyor roller 2 27, since the height of the printing roller 2 remains unchanged, under the action of the printing roller 2 and the squeezing action and the thrust applied by the conveyor belt 4, the packaging box cardboard will squeeze the conveyor roller 2 27 downward, and the conveyor roller 2 27 drives the slider 26 to move downward. When the left end of the packaging box cardboard contacts the bottom end of the printing roller 2, the conveyor roller 2 27 moves downward to the lowest point. At this time, the conveyor roller 2 27 moves downward to the same height as the conveyor roller 1 3, the start-stop unit cancels the limit on the printing roller 2, and the printing roller 2 starts to rotate; at this time, the left end of the packaging box cardboard has abutted against the bottom end of the printing roller 2, which can avoid the printing roller 2 hindering the movement of the packaging box cardboard at the moment the left end of the packaging box cardboard contacts the printing roller 2; while the printing roller 2 rotates The driving unit can drive the conveying roller 1 3 and the conveying roller 2 27 to rotate synchronously, and the linear speeds of the printing roller 2, the conveying roller 1 3 and the conveying roller 2 27 at the tangent position to the packaging box cardboard are equal, which can prevent the packaging box cardboard from slipping and deflecting during the conveying process, and the spring for resetting the slider 26 and the conveying roller 2 27 can apply an upward pre-tightening force to the packaging box cardboard through the conveying roller 2 27. The printing roller 2 can cooperate with the conveying roller 2 27 to stably clamp the packaging box cardboard, and the packaging box cardboard can be stably conveyed to the left, so that the pattern on the printing roller 2 can be better printed on the packaging box cardboard; when the printing roller 2 rotates one circle to complete a printing job, the start-stop unit can stop the printing roller 2 at the same position, and every time the left end of the packaging box cardboard moves to contact the bottom end of the printing roller 2, the printing roller 2 starts working immediately, and the printed pattern on the packaging box cardboard can maintain the same position.

[0026] Specifically, such as Figure 4As shown, the driving unit includes a first sprocket 5 and a driving head; the first sprocket 5 is fixedly mounted on the rotating shaft of the printing roller 2, and the first sprocket 5 is connected to the second sprocket 6 through a first chain 7; the second sprocket 6 is fixedly connected to the rotating shaft with a first gear 8, the first gear 8 is meshed with a second gear 9, the second gear 9 is fixedly connected to the rotating shaft with a third sprocket 10, and the second sprocket 6 and the third sprocket 10 are both rotatably connected to the support seat 1; the conveying roller 1 3 and the conveying roller 2 27 are fixedly connected to the rotating shaft with a fourth sprocket 11, and the third sprocket 10 and the fourth sprocket 11 are connected through a second chain 12; the driving head is used to drive the printing roller 2 to rotate.

[0027] After the start-stop unit cancels the limit on the printing roller 2, the drive head drives the printing roller 2 to rotate, and the printing roller 2 drives the first sprocket 5 to rotate. The first sprocket 5 drives the second sprocket 6 to rotate synchronously through the first chain 7. The second sprocket 6 drives the third sprocket 10 to rotate synchronously through the first gear 8 and the second gear 9. The third sprocket 10 drives the plurality of fourth sprockets 11 to rotate synchronously through the second chain 12. After the conveying roller 2 27 moves downward to the lowest point, the second chain 12 is in a taut state; the plurality of fourth sprockets 11 drive the conveying roller 1 3 and the conveying roller 2 27 to rotate synchronously; the rotation direction of the conveying roller 1 3 and the conveying roller 2 27 is opposite to the rotation direction of the printing roller 2; by setting the transmission ratio of the first sprocket 5, the second sprocket 6, the first gear 8, the second gear 9, the third sprocket 10 and the fourth sprocket 11, the linear speed of the printing roller 2, the conveying roller 1 3 and the conveying roller 2 27 at the tangent position to the packaging box cardboard can be made the same, the conveying speed of the packaging box cardboard remains stable, and the packaging box cardboard can be prevented from slipping and deflecting during the conveying process.

[0028] Specifically, such as Figure 2 and Figure 4 As shown, the drive head includes a magnetic coupling 19 and a motor 20; both ends of the magnetic coupling are connected to the printing roller 2 and the motor 20 respectively; the motor 20 is installed on the support base 1.

[0029] When the motor 20 is working, it can drive the printing roller 2 to rotate through the magnetic coupling 19. The start-stop unit limits the printing roller 2. When the printing roller 2 remains stationary, the motor 20 can drive the magnetic coupling connected to the motor 20 to rotate normally; when the start-stop unit cancels the limit on the printing roller 2, the end connected to the magnetic coupling and the motor 20 can immediately start to rotate through the magnetic drive of the magnetic coupling and the printing roller 2, and the packaging box cardboard printing and conveying process can be carried out continuously.

[0030] Specifically, such as Figure 4 and Figure 5As shown, the start-stop unit includes a locking plate 13, which is fixedly mounted on the rotating shaft of the printing roller 2; a positioning block 14 is fixedly mounted on the locking plate 13; the support seat 1 is slidably connected to a limiting rod 15 in the vertical direction, and the limiting rod 15 can limit the positioning block 14; the limiting rod 15 is rotatably connected to the conveying roller 27.

[0031] When the conveying roller 27 moves downward, it can drive the limit rod 15 to move downward synchronously. However, after the conveying roller 27 moves downward to the lowest point, the limit rod 15 moves downward to the position where the limit on the positioning block 14 is cancelled, and then the driving head can drive the printing roller 2 to rotate. It should be noted that since the printing roller 2 usually only needs to print the packaging cardboard once, in order to avoid the printing roller 2 from printing twice, in actual setting, the outer circumference of the printing roller 2 is longer than the length of the packaging cardboard. Therefore, before the printing roller 2 rotates one circle, the right end of the packaging cardboard will definitely be separated from the conveying roller 27, and the conveying roller 27, the slider 26 and the limit rod 15 move upward to the initial position under the elastic force of the spring. Figure 5 As shown, the limiting rod 15 moves upward to a position where it can limit the positioning block 14 again, and the printing roller 2 can stably stop at the same position after rotating one circle.

[0032] Specifically, such as Figure 5 As shown, a rotation groove 16 is formed on the locking plate 13, and the positioning block 14 can slide in the rotation groove 16; the positioning block 14 is kept relatively fixed to the locking plate 13 by a locking member.

[0033] When the locking member cancels the fixation of the positioning block 14 and the locking disk 13, the position of the printing area on the printing roller 2 can be adjusted by rotating the locking disk 13, thereby adjusting the contact position of the printing area and the packaging box cardboard; after the adjustment is completed, the positioning block 14 and the locking disk 13 are relatively fixed by the locking member; through the arrangement of the locking disk 13 and the locking member, the printing position can be conveniently adjusted.

[0034] Specifically, such as Figure 5 As shown, the locking member includes a bolt 17 and a nut 18; the bolt 17 is fixedly connected to the locking plate 13; the nut 18 is arranged on the outside of the positioning block 14; after the nut 18 is tightened, the positioning block 14 and the locking plate are relatively fixed.

[0035] Specifically, such as Figure 6-Figure 8 As shown, a mounting plate 21 is fixedly connected to the support seat 1, and a plurality of equidistantly arranged correction blocks 22 are rotatably connected to the mounting plate 21; a torsion spring for resetting the correction block 22 is installed on the mounting plate 21; a sliding column 23 is fixedly connected to the side wall of the correction block 22, and a sliding groove 24 is provided on the side wall of the correction block 22; the sliding column 23 can slide with the sliding groove 24 on the adjacent correction block 22; two symmetrically arranged guide rods 25 are provided above the conveyor belt 4.

[0036] When the packaging box cardboard abuts against one of the correction blocks 22 in an inclined posture, since the two adjacent correction blocks 22 are connected to the slide 24 through the slide post 23, the correction block 22 will stop rotating after rotating a certain angle, and it is difficult to drive the adjacent correction blocks 22 to rotate. Therefore, only when the left end of the packaging box cardboard abuts against all the correction blocks 22 at the same time, the packaging box cardboard can easily drive the correction block 22 to rotate to the angle as shown in FIG. Figure 8 In the position shown, the correction block 22 can guide the packaging box cardboard after it is rotated, and the packaging box cardboard can be more easily moved between the conveying roller 27 and the printing roller 2; at the same time, printing can be enabled; at the same time, through the setting of the guide rod 25, when the packaging box cardboard is conveyed to the left, the guide rod 25 can adjust the position of the packaging box cardboard, so that the left end of the packaging box cardboard is parallel to the axis of the conveying roller 27, which can make the packaging box cardboard more easily push the correction block 22 to rotate to the left.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A conveying device for printing and processing paper packaging boxes, comprising a support base (1), a printing roller (2), a conveying roller (3) and a conveying belt (4) mounted on the support base (1), wherein the conveying roller (3) is arranged in a plurality of symmetrical arrangements with respect to the printing roller (2), and the conveying belt (4) is arranged in two symmetrical arrangements with respect to the printing roller (2); characterized in that: A second conveying roller (27) is provided directly below the printing roller (2), and the second conveying roller (27) has the same structure as the first conveying roller (3); the distance between the top end of the second conveying roller (27) and the bottom end of the printing roller (2) is smaller than the distance between the top end of the first conveying roller (3) and the bottom end of the printing roller (2); a slider (26) is rotatably mounted on the second conveying roller (27), and the slider (26) is elastically slidably connected to the support seat (1) in the vertical direction; the support seat (1) is provided with a start-stop unit, and the start-stop unit drives the printing roller (2) to start working after the second conveying roller (27) moves downward to the same height as the first conveying roller (3); a driving unit for driving the first conveying roller (3), the second conveying roller (27) and the printing roller (2) to convey the packaging box cardboard at the same speed is provided on the inner side of the support seat (1).

2. A conveying device for printing paper packaging boxes according to claim 1, characterized in that: The driving unit comprises a first sprocket (5) and a driving head; the first sprocket (5) is fixedly mounted on the rotating shaft of the printing roller (2), and the first sprocket (5) is connected to the second sprocket (6) through a first chain (7); the rotating shaft of the second sprocket (6) is fixedly connected to a first gear (8), the first gear (8) is meshed with a second gear (9), the rotating shaft of the second gear (9) is fixedly connected to a third sprocket (10), and the second sprocket (6) and the third sprocket (10) are both rotatably connected to the support seat (1); the rotating shafts of the conveying roller 1 (3) and the conveying roller 2 (27) are fixedly connected to a fourth sprocket (11), and the third sprocket (10) and the fourth sprocket (11) are connected through a second chain (12); the driving head is used to drive the printing roller (2) to rotate.

3. The conveying device for printing paper packaging boxes according to claim 2, characterized in that: The drive head comprises a magnetic coupling (19) and a motor (20); both ends of the magnetic coupling are connected to the printing roller (2) and the motor (20) respectively; and the motor (20) is mounted on the support base (1).

4. The conveying device for printing paper packaging boxes according to claim 1, characterized in that: The start-stop unit includes a locking plate (13); the locking plate (13) is fixedly mounted on the rotating shaft of the printing roller (2); a positioning block (14) is fixedly mounted on the locking plate (13); the support seat (1) is slidably connected to a limiting rod (15) in the vertical direction, and the limiting rod (15) can limit the positioning block (14); the limiting rod (15) is rotatably connected to the second conveying roller (27).

5. The conveying device for printing paper packaging boxes according to claim 4, characterized in that: The locking disk (13) is provided with a rotation groove (16), and the positioning block (14) can slide in the rotation groove (16); the positioning block (14) is kept relatively fixed with the locking disk (13) via a locking member.

6. The conveying device for printing paper packaging boxes according to claim 5, characterized in that: The locking member comprises a bolt (17) and a nut (18); the bolt (17) is fixedly connected to the locking plate (13); the nut (18) is arranged outside the positioning block (14); after the nut (18) is tightened, the positioning block (14) and the locking plate (13) are relatively fixed.

7. The conveying device for printing paper packaging boxes according to claim 4, characterized in that: The support seat (1) is fixedly connected to a mounting plate (21), and a plurality of equidistantly arranged correction blocks (22) are rotatably connected to the mounting plate (21); a sliding column (23) is fixedly connected to the side wall of the correction block (22), and a sliding groove (24) is provided on the side wall of the correction block (22); the sliding column (23) can be slidably matched with the sliding groove (24) on the adjacent correction block (22).

8. The conveying device for printing paper packaging boxes according to claim 1, characterized in that: Two symmetrically arranged guide rods (25) are provided above the conveyor belt (4).

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