Packaging box feeding and opening mechanism

Abstract

The utility model discloses a packaging box feeding and opening mechanism. Comprising a trough (an outlet is provided with a downhill way and a striker plate, a limiting plate is arranged above the trough, and a conveying belt and a positioning block are arranged in the trough), a planetary gear suction cup assembly (a servo motor drives a planetary gear to rotate and turn over circumferentially, and a suction cup adsorbs the packaging box), and a lattice bin (a conveying belt conveys the packaging box). According to the pre-opening mechanism, the problems that due to the fact that the width of the unopened packaging box is large, the packaging box is prone to loosening in stacking, a grid bin is difficult to clamp in, and adsorption is not reliable are solved, and the packaging efficiency and reliability are improved through pre-opening and stable conveying.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of medical packaging equipment field, specifically to a kind of packaging box feeding opening mechanism. BACKGROUND

[0002] In existing medical packaging equipment, paper packaging box (paperboard) not opened is placed in vertical push stack state in material tank, and it needs to be directly adsorbed and clamped into the compartment of conveying belt by suction cup. Since the opening width of the compartment is only slightly larger than the width of the packaging box after opening (much smaller than the original width of the packaging box not opened), and it is not easy to bend when the thickness of the packaging box is large, it requires very high precision to directly adsorb the packaging box not opened and put it into the compartment, and clamping failure often occurs. At the same time, the paperboard stacked vertically is easy to loosen during feeding, which affects the adsorption reliability of the suction cup and the packaging efficiency and stability. SUMMARY

[0003] To solve the above problems, the utility model aims to solve the problem of difficulty in clamping the compartment and unreliable adsorption of the suction cup caused by the excessive width of the paper packaging box not opened and the loose stacking, and provides a feeding opening mechanism that can pre-open the packaging box and stably convey it.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a medical packaging box feeding opening mechanism, comprising:

[0005] A material tank is used to vertically stack the packaging box not opened in the form of paperboard. The outlet section of the material tank is provided with a downward inclined ramp, and a blocking plate is arranged at the outlet. A limiting plate is arranged above the material tank. A conveying belt driven by a motor is installed around the bottom of the tank. A positioning block is also placed in the tank.

[0006] A suction cup is rotated in a circular manner and can be automatically turned over by a planetary gear suction cup assembly.

[0007] A compartment is conveyed along the conveying belt, and the opening width of the compartment is slightly larger than the width of the packaging box after opening.

[0008] A pre-opening adjustment assembly includes a bracket, a vertical adjustment plate and a rotating shaft. The bracket is provided with a horizontal adjustment groove. The vertical adjustment plate is adjustably installed through the horizontal adjustment groove. The vertical adjustment plate is provided with a vertical adjustment groove and a side opening shaft hole. The rotating shaft is inserted into the shaft hole and fixed by a locking bolt. The rotating shaft is fixed with a blocking plate. The vertical adjustment plate is adjusted by adjusting the up and down position of the blocking plate through the locking nut after passing through the horizontal adjustment groove and the vertical adjustment groove.

[0009] The positioning block is placed at the tail of the stacked packaging box in the material tank.

[0010] The planetary gear suction disc assembly comprises a central sun gear, three planetary gears, a planet carrier for fixing the planetary gears and an inner ring gear at the outermost side, the planet carrier is connected with the three planetary gears through a rotating shaft and is driven by a servo motor, the three planetary gears are connected with suction rods respectively, the end of the suction rod is provided with a suction disc, the suction disc is connected with a suction pump, and when the servo motor drives the planet carrier to rotate, the suction rod rotates along with the planetary gear and overturns along with the planetary gear.

[0011] The blocking plate adjusts the angle through the rotation of the rotating shaft, and adjusts the up-down position through the adjusting bolt, so that the packaging box realizes pre-opening when passing through the blocking plate to reduce the width.

[0012] The beneficial effects of the utility model are as follows: the circumferential rotation and overturning synchronous action of the suction disc are realized through the planetary gear set, the stacked packaging boxes are stably conveyed by cooperating with the conveying belt; the positioning block and the limiting plate prevent the stacking from being loose, and the conveying belt ensures the adsorption reliability; the pre-opening adjusting assembly accurately controls the position and angle of the blocking plate, the width of the unopened packaging box is reduced after the pre-opening of the blocking plate, and the packaging box is smoothly clamped into the grid bin; the overall structure improves the bin entry success rate of the packaging box and the conveying stability.

[0013] The utility model will be further described below in combination with the drawings and specific embodiments. DRAWINGS

[0014] Figure 1 It is a perspective view of the specific embodiment of the utility model;

[0015] Figure 2 It is Figure 1 It is an enlarged view of A;

[0016] Figure 3 It is a side view of the specific embodiment of the utility model.

[0017] Mark 1-feeding groove; 2-slope; 3-stopping plate; 4-limiting plate; 5-conveying belt; 7-positioning block; 12-suction rod; 13-suction disc; 16-rack plate; 17-transverse adjusting groove; 18-vertical adjusting plate; 19-vertical adjusting groove; 20-rotating shaft; 21-blocking plate; 24-grid bin; 25-conveying belt. EMBODIMENT

[0018] The utility model will be further described below in combination with the drawings and specific embodiments.

[0019] As Figure 1 - Figure 3 The embodiment discloses a packaging box feeding and opening mechanism, and the specific structure is as follows:

[0020] The trough assembly: the trough 1 is a transversely arranged rectangular groove, and the inside is vertically stacked with unopened paperboard packaging boxes (initial state is tightly stacked flat). The outlet section of the trough 1 is processed into a downward inclined ramp 2 (the inclination angle is about 30°), and the outlet end is provided with a movable blocking plate 3 (for controlling the release of a packaging box at a time). A limiting plate 4 is arranged above the trough 1 by a support (parallel to the trough bottom, preventing the longitudinal deviation of the stacked packaging boxes), a conveying belt 5 is arranged on the bottom of the trough (arranged in a ring shape around the bottom of the trough and driven to rotate by a motor), and the surface of the conveying belt 5 is in contact with the bottom of the stacked packaging boxes (auxiliary stable stacking and auxiliary conveying of the frontmost packaging box); a positioning block 7 is placed at the bottom of the trough 1 near the outlet (a right-angled triangular block, abutting against the bottom end of the stacked packaging boxes, preventing the stack from toppling over).

[0021] The planetary gear suction cup assembly: a planetary gear set is arranged corresponding to the outlet of the trough 1, which includes a central sun gear, three evenly distributed planetary gears, a planetary carrier for fixing the planetary gears, and an inner ring gear on the outermost side. The planetary carrier is connected with the three planetary gears through a rotating shaft, and the planetary carrier is driven to rotate by a servo motor (the servo motor is fixed on the rack, and the output shaft is connected with the center of the planetary carrier). A suction rod 12 is welded on each planetary gear, and a suction cup 13 is arranged at the end of the suction rod 12 (connected with a suction pump through a pipeline, for generating suction force). When the servo motor drives the planetary carrier to rotate, the planetary gears rotate around their own axes (turn over) and revolve around the sun gear (circumferential rotation) under the meshing action of the sun gear and the inner ring gear, thereby driving the suction cup 13 to complete the circumferential motion and turning action synchronously.

[0022] The pre-opening adjustment assembly: including a rack plate 16 (fixed on the rack), a vertical adjustment plate 18 and a rotating shaft 20. The rack plate 16 is provided with a horizontal adjustment slot 17 (a horizontal long hole), and the vertical adjustment plate 18 is adjustably installed through the horizontal adjustment slot 17 by bolts (the front and back positions can be adjusted). The vertical adjustment plate 18 is provided with a vertical adjustment slot 19 (a vertical long hole) and a shaft hole with a side opening (the rotating shaft 20 is inserted into the shaft hole, and the axial position of the rotating shaft 20 is fixed by lock nuts at the opening of the shaft hole), and a blocking plate 21 is fixed on the rack (a plate structure, for contacting the packaging box and pre-opening it). The up-down height and angle (such as inclination angle) of the blocking plate 21 can be adjusted synchronously by adjusting the bolts (passing through the horizontal adjustment slot 17 and the vertical adjustment slot 19 and locking the nuts), so that the packaging box is moderately contacted when passing through the blocking plate 21, and the packaging box is pre-opened along the crease after being squeezed.

[0023] Transportation cooperation: after the suction cup 13 adsorbs the unopened packaging box at the outlet of the material groove 1, it rotates and turns over along the circumference of the planet wheel (so that the packaging box gradually stands up), when passing through the blocking plate 21, the crease on the unopened packaging box is pressed to make it pre-opened (the width is reduced), and finally it is turned over to the position corresponding to the grid bin 24 (a rectangular bin body with an equal interval on the conveying belt 25, and the opening width is slightly larger than the width of the opened packaging box), the suction cup 13 releases the adsorption force, and the packaging box is smoothly clamped into the grid bin 24.

[0024] Workflow

[0025] 1. The stacked unopened packaging boxes are placed in the material groove 1, the positioning block 7 prevents tilting, and the two conveying belts 5 are used to drive the opened packaging boxes to be transported at the bottom of the unopened packaging boxes;

[0026] 2. When the packaging boxes arranged at the front end slide along the chute 2 to the outlet, they are blocked by the blocking plate;

[0027] 3. The servo motor drives the planet carrier to rotate, and the suction cup 13 rotates and turns over along the circumference of the planet wheel as at the outlet of the material groove, adsorbing the packaging box (the air pump is started);

[0028] 4. After the suction cup 13 adsorbs the packaging box, it continues to rotate, and the planet wheel rotates to make the packaging box begin to turn over;

[0029] 5. When the packaging box rotates to the position of the blocking plate 21, it collides with the blocking plate 21 and is pressed (pre-opened), and the width is reduced;

[0030] 6. The suction cup 13 continues to turn over to send the pre-opened packaging box to above the grid bin 24, directly clamping the pre-opened packaging box into the grid bin 24, the inner wall of the grid bin 24 will press the packaging box to make it into an opened packaging box, (because the width is suitable after pre-opening, it is smoothly clamped in), then the electromagnetic valve closes the air path to control the suction cup to stop adsorbing, and the opened packaging box is output with the conveying belt;

[0031] 7. Repeat the above steps to realize continuous feeding and opening.

[0032] After adopting the above technical scheme, the following technical effects can be obtained: the circumferential rotation and turning over of the suction cup are realized by the planet gear set, and the stacked packaging boxes are stably transported by cooperating with the conveying belt; the positioning block and the limiting plate prevent the stacking from being loose, and the conveying belt ensures the adsorption reliability; the pre-opening adjusting assembly accurately controls the position and angle of the blocking plate, so that the unopened packaging box is pre-opened by the blocking plate, the width is reduced, and it is smoothly clamped into the grid bin; the overall structure improves the success rate of packaging box into the bin and the stability of transportation.

Claims

1. A carton feed opening mechanism characterized by, It comprises: a chute (1) for stacking unopened paperboard cartons vertically, the outlet section of which is provided with a downwardly inclined ramp (2), the outlet is provided with a baffle (3), a limiting plate (4) is arranged above, a positioning block (7) is arranged in the chute; a suction cup which rotates in a circle and can be automatically turned over through a planetary gear suction cup assembly; a grid bin (24) which is conveyed along a conveying belt (25) and the opening width of which is slightly larger than the width of the opened carton; a pre-opening adjusting assembly which comprises a shelf plate (16), a vertical adjusting plate (18) and a rotating shaft (20), the shelf plate (16) is provided with a transverse adjusting groove (17), the vertical adjusting plate (18) is adjustably installed through the transverse adjusting groove (17), the vertical adjusting plate (18) is provided with a vertical adjusting groove (19) and a side opening shaft hole, the rotating shaft (20) is inserted into the shaft hole and locked by a locking bolt (23), the rotating shaft (20) is fixed with a blocking plate (21), the vertical adjusting plate (18) is locked by a locking nut after passing through the transverse adjusting groove (17) and the vertical adjusting groove (19) through an adjusting bolt (22), thereby adjusting the up-down position of the blocking plate (21).

2. The carton feed opening mechanism of claim 1, wherein, The positioning block (7) is placed at the tail of the stacked cartons in the chute (1).

3. The carton feed opening mechanism of claim 1 wherein, The planetary gear suction cup assembly comprises a central sun gear, three planetary gears, a planet carrier for fixing the planetary gears and an inner ring gear at the outermost side, the planet carrier is connected with the three planetary gears through a rotating shaft and is driven by a servo motor, each of the three planetary gears is connected with a suction rod (12), the end of the suction rod (12) is provided with a suction cup (13), the suction cup (13) is connected with a suction pump, when the planet carrier is driven to rotate by the servo motor, the suction rod (12) rotates in a circle with the planetary gears and turns over with the planetary gears.

4. The carton feed opening mechanism of claim 1 wherein, The blocking plate (21) is adjusted in angle by rotating the rotating shaft (20) and adjusted in up-down position by the adjusting bolt (22), so that the carton realizes pre-opening when passing through the blocking plate (21) to reduce the width.

5. The carton feed opening mechanism of claim 1 wherein, The conveying belt (5) is in contact with the bottom of the chute (1) and is driven, which is used for assisting to stabilize the stacked cartons.

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