CN216443915U - Paper box unfolding device - Google Patents

Abstract

The utility model provides a paper box unfolding device which comprises a flat box conveying mechanism, a paper box conveying belt and a box opening mechanism, wherein the box opening mechanism is used for picking up a flat box at the flat box conveying mechanism, unfolding the flat box and conveying the flat box to the paper box conveying belt; the box opening mechanism comprises a turntable, a collision frame, a driving mechanism, rotating rods arranged on the turntable and suckers arranged on each rotating rod, wherein the driving mechanism drives the turntable to rotate around the axis of the turntable and simultaneously drives the rotating rods to rotate around the axis of the turntable; along with the motion of bull stick, the sucking disc is in turn towards flat box conveying mechanism, collision frame and carton conveyer belt, and when the sucking disc was towards the collision frame, a dog-ear of flat box can contradict with the collision frame and expand flat box. The rotating rod can rotate around the axis of the rotating rod and revolve around the axis of the rotating disk, so that one bevel of the flat box picked up by the sucking disk is abutted against the collision frame at the collision frame to unfold the flat box into a rectangular paper box, the collision frame does not move, only the rotating rod performs rotation and revolution movement, and the driving mechanism is simple in structure.

Description

Paper box unfolding device

Technical Field

The utility model belongs to the field of packaging machines, and particularly relates to a paper box unfolding device.

Background

Before the medicine bottle leaves the factory, the medicine bottle is generally required to be packaged by a medicine box, and the medicine box generally adopts a rectangular paper box. However, in the transportation process, in order to reduce the volume of the rectangular paper box, the paper box is generally in a folding and flattening state (flat box) after being processed, and the flat box is unfolded into a rectangular state by an unfolding device of the medicine bottle boxing machine when a medicine bottle is filled.

Present expansion device is mostly the cylinder when unpacking and drives sucking disc rectilinear motion and unpack, for example first sucking disc holds the first side of carton, and the second sucking disc holds the second side that is located the first side opposite of carton, then the second sucking disc is to keeping away from the direction motion of first sucking disc in order to expand the carton. In the technical scheme, the first side face and the second side face of the flat box are not opposite but staggered, so that the first sucker and the second sucker are also staggered. In the process of unfolding the paper box, the second sucker moves towards the direction far away from the first sucker and also moves towards the direction opposite to the first sucker, namely the second sucker needs to move in two directions, so that a mechanism for driving the second sucker to move is complex.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the technical problems occurring in the prior art, and an object of the present invention is to provide a carton unfolding apparatus.

In order to achieve the purpose, the utility model adopts the following technical scheme: the paper box unfolding device comprises a flat box conveying mechanism for storing and conveying flat boxes, a paper box conveying belt for conveying and unfolding the paper boxes, and a box opening mechanism for picking up the flat boxes at the flat box conveying mechanism, unfolding the flat boxes and conveying the flat boxes to the paper box conveying belt; the box opening mechanism comprises a rotary plate, a collision frame, a driving mechanism, at least one rotary rod and a sucker, wherein the rotary rods are circumferentially arranged on the rotary plate at intervals; along with the rotation of the rotating rod around the axis of the rotating rod and the revolution around the axis of the rotating disk, the suckers face the flat box conveying mechanism, the collision frame and the paper box conveying belt in turn, and when the suckers face the collision frame, one bevel of the flat box can be abutted against the collision frame to unfold the flat box.

Among the above-mentioned technical scheme, the bull stick can be around the rotation of its axis and revolute the revolution of carousel axis for sucking disc on the bull stick can rotate to flat box conveying mechanism, collision frame and carton conveyer belt department along with the carousel in turn, and the orientation of sucking disc is changed in order to change along with the bull stick rotation to the sucking disc simultaneously. Therefore, the sucker can pick up the flat box at the flat box conveying mechanism, and the flat box does not interfere with the flat box conveying mechanism when leaving; the folding angle of the flat box picked up by the sucking disc can be abutted against the collision frame at the collision frame to unfold the flat box into a rectangular paper box, and the paper box does not interfere with the collision frame when leaving; when still making the carton move to carton conveyer belt department, the sucking disc is towards the carton conveyer belt, does benefit to the carton and accurately falls to the assigned position of carton conveyer belt. When the paper box is unfolded, the collision frame does not move, only the rotating rod rotates and revolves, and the driving mechanism is simple in structure.

In a preferred embodiment of the present invention, the flat box conveying mechanism includes a box storage groove which is obliquely arranged, the flat boxes in the box storage groove are accumulated at a lower end of the box storage groove, and a stopper for stopping the flat boxes from falling is arranged at an edge of the lower end of the box storage groove.

Among the above-mentioned technical scheme, store up the slope setting of box groove, the flat box is reliable to be done oneself with the dead weight and slides down, can avoid the flat box roll-off to storing up outside the box groove through setting up the dog moreover.

In a preferred embodiment of the present invention, two movable plates extending in the length direction of the storage tank are disposed in the storage tank and are parallel to each other, the two movable plates can slide in the width direction of the storage tank to adjust the distance between the two movable plates, and the flat box is disposed between the two movable plates of the storage tank.

Among the above-mentioned technical scheme, through adjusting the distance between two fly leaves to this conveying work of adaptable flat box of different sizes improves this carton expansion device's commonality.

In a preferred embodiment of the utility model, the collision frame comprises an L-shaped bracket and a collision block arranged on the bracket, the bracket comprises a base arranged on the frame and parallel to the end face of the turntable, and a supporting column fixedly connected with the base and perpendicular to the end face of the turntable, the base can slide relative to the frame to be close to or far away from the turntable, and the collision block is arranged on the supporting column and can slide and be fixed along the length direction of the supporting column.

In the technical scheme, the collision block is arranged on the L-shaped bracket, so that the distance relationship between the collision block and the sucker rotating to the collision block can be changed by sliding the base on the rack; the collision block slides on the supporting column to change the distance between the collision block and the end face of the rotary table, so that the position of the collision block, which is opposite to the sucking disc at the collision block, is adjusted, on one hand, the position of the collision block can be finely adjusted, so that the flat box is completely unfolded, and on the other hand, the flat box can adapt to the unfolding of the flat boxes with different sizes.

In a preferred embodiment of the present invention, the base has a first bar-shaped groove, a first bolt penetrates through the first bar-shaped groove, the frame has a first threaded hole, and the first bolt penetrates through the first bar-shaped groove and is in threaded connection with the first threaded hole to fasten the base; the support column is provided with a second strip-shaped groove, a second bolt is arranged in the second strip-shaped groove in a penetrating mode, a second threaded hole is formed in the impact block, and the second bolt penetrates through the second strip-shaped groove and is in threaded connection with the second threaded hole to fasten the impact block.

In the above technical solution, when the position of the impact block relatively transferred to the suction cup at the impact block needs to be adjusted, the position of the impact block can be changed by sliding the base on the first bolt and/or sliding the second bolt in the second strip-shaped groove.

In another preferred embodiment of the utility model, the collision block is in an L-shaped structure with two abutting edges when viewed from the end face of the turntable, and the folded angle of the carton abuts against at least one of the abutting edges in the process of unfolding the carton; the flat box is unfolded to be a cuboid paper box, and two adjacent right angles of the paper box are respectively abutted against two abutting edges of the collision block.

Among the above-mentioned technical scheme, the flat box expandes to the cuboid carton, and two adjacent right angles of carton are contradicted with two counterbalance edges of collision piece respectively, assurance carton that from this can be better expandes completely to the cuboid form.

In another preferred embodiment of the present invention, the driving mechanism includes a first gear coaxially fixed to the turntable, a second gear coaxially fixed to each of the rotating rods and externally engaged with the first gear, and a power source for driving the first gear to rotate.

In the technical scheme, the first gear and the second gear form the planet gear mechanism, so that the rotating rod can revolve along with the rotating disc while rotating around the axis of the rotating rod, the structure is simple, and the operation is reliable.

In another preferred embodiment of the utility model, the number of the rotating rods is three, and the three rotating rods are uniformly distributed on the end surface of the rotating disc in the circumferential direction.

Among the above-mentioned technical scheme, the quantity of bull stick is suitable, through reasonable position overall arrangement, can make the sucking disc on three bull sticks can be respectively towards flat box conveying mechanism, collision frame and carton conveyer belt for the carousel rotates the three carton of the round deployable, and is efficient.

In another preferred embodiment of the utility model, the rotating rods are arranged perpendicular to the end surface of the rotating disc, and each rotating rod is provided with at least two suction cups which are oriented in the same direction at intervals along the length direction of the rotating rod.

Among the above-mentioned technical scheme, set up two at least sucking discs on every bull stick, the in-process of avoiding expanding the carton, the carton breaks away from the sucking disc by the better paper box of holding.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view schematically showing the structure of the vial packing machine in the embodiment.

Fig. 2 is a schematic sectional structure view of a-a in fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic top view of the crash frame of fig. 1.

FIG. 5 is a first drawing of the process of unfolding a flat box into a rectangular parallelepiped carton.

FIG. 6 is a second drawing of the process of unfolding the flat box into a rectangular parallelepiped carton.

Fig. 7 is a schematic top view of the carton conveyor and the vial conveyor in an embodiment.

In fig. 1-7, the flat and carton boxes are cross-hatched for ease of viewing.

Reference numerals in the drawings of the specification include: the carton unfolding device 100, the medicine bottle boxing device 200, the flat box conveying mechanism 10, the box storage groove 11, the stop 12, the movable plate 13, the connecting block 14, the box opening mechanism 20, the rotary table 21, the collision frame 22, the support 221, the base 2211, the support column 2212, the first strip-shaped groove 2213, the first bolt 2214, the second strip-shaped groove 2215, the second bolt 2216, the collision block 222, the driving mechanism 23, the first gear 231, the second gear 232, the rotary rod 24, the suction cup 25, the carton conveying belt 30, the carton limiting groove 31, the limiting frame 311, the limiting strip 312, the endless chain 32, the chain wheel mechanism 33, the medicine bottle conveying belt 40, the medicine bottle limiting groove 41 and the pushing mechanism (electric telescopic rod) 50.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The present invention provides a medicine bottle boxing machine, as shown in fig. 1, the medicine bottle boxing machine comprises a paper box unfolding device 100 for unfolding a flat box which is folded and flattened into a rectangular paper box (short for paper box), and a medicine bottle boxing device 200 for filling medicine bottles into the paper box, wherein the paper box unfolding device 100 and the medicine bottle boxing device 200 are mounted on a frame (not shown in the figure).

As shown in fig. 1, in a preferred embodiment, the paper cassette spreading device 100 includes a flat cassette conveying mechanism 10 for storing and conveying flat cassettes, a paper cassette conveyor 30 for conveying the spread paper cassettes, and a box opening mechanism 20 for picking up the flat cassettes at the flat cassette conveying mechanism 10 and spreading them to convey them to the paper cassette conveyor 30.

As shown in fig. 1, the box opening mechanism 20 includes a turntable 21, a collision frame 22, a driving mechanism 23, at least one rotating rod 24 circumferentially spaced on the turntable 21, and a suction cup 25 mounted on each rotating rod 24, wherein the driving mechanism 23 drives the turntable 21 to rotate around its axis and simultaneously drives the rotating rod 24 to rotate around its axis, that is, a set of driving mechanisms 23 is used to simultaneously drive the turntable 21 to rotate and the rotating rod 24 to rotate. In fig. 1, three rotating rods 24 are provided, and the three rotating rods 24 are uniformly distributed on the end surface of the rotating disc 21 in the circumferential direction. The rotating rods 24 are arranged perpendicular to the end face of the rotating disc 21, and each rotating rod 24 is provided with at least two suction cups 25 which are in the same direction at intervals along the length direction.

In the present embodiment, the turntable 21 is vertically disposed, the flat box conveying mechanism 10 is disposed on the right side of the turntable 21, the collision frame 22 is disposed on the left side of the turntable 21, and the paper box conveyor 30 is disposed below the turntable 21.

Under the drive of the driving mechanism 23, the driving mechanism 23 drives the rotary table 21 to rotate counterclockwise around the axis thereof and simultaneously drives the rotary rods 24 to rotate clockwise around the axis thereof, the suction cups 25 on each rotary rod 24 face the flat box conveying mechanism 10, the collision frame 22 and the paper box conveyor belt 30 in turn along with the rotation of the rotary rods 24 around the axis thereof and the revolution around the axis of the rotary table 21, and when the suction cups 25 face the collision frame 22, a break angle (acute angle) of the flat box can collide with the collision frame 22 to unfold the flat box into a rectangular paper box.

As shown in fig. 1, in the present embodiment, the driving mechanism 23 is disposed on the back surface of the turntable 21, and the driving mechanism 23 includes a first gear 231 coaxially fixed to the turntable 21, a second gear 232 coaxially fixed to each of the three rotating rods 24 and externally engaged with the first gear 231, and a power source for driving the first gear 231 to rotate, and the power source may be a rotating motor. The first gear 231 and the three second gears 232 constitute a planetary gear mechanism, so that the rotary rod 24 can revolve around the axis of the turntable 21 while rotating on its axis.

In another preferred embodiment, as shown in fig. 1, the flat box transfer mechanism 10 includes a obliquely disposed box magazine 11, and the box magazine 11 is obliquely disposed from right to left and from top to bottom. The flat boxes in the box storage groove 11 are accumulated at the lower end of the box storage groove 11, and a stop 12 for stopping the flat boxes from falling is arranged at the edge of the lower end of the box storage groove 11. In the present invention, the magazine slot 11 is disposed obliquely, and the flat magazine can slide downward by its own weight or be conveyed by a conveyor belt, but the present invention is not particularly limited.

In another preferred embodiment, as shown in fig. 2, two movable plates 13 are disposed in the magazine slot 11 and extend in parallel along the length direction of the magazine slot, the two movable plates 13 can slide in the width direction of the magazine slot 11 to adjust the distance between the two movable plates 13, and the flat box is disposed between the two movable plates 13 of the magazine slot 11. For example, a connecting block 14 is fixedly connected to the top of the storage box slot 11, the connecting block 14 has a sliding slot arranged along the width direction of the storage box slot 11, the upper end of the movable plate 13 is clamped in the sliding slot and can slide in the sliding slot, and after the position of the movable plate 13 is adjusted, the movable plate 13 and the connecting block 14 are fixedly connected into a whole by bolts.

In another preferred embodiment, as shown in fig. 3 and 4, the collision frame 22 includes an "L" -shaped bracket 221 and a collision mass 222 mounted on the bracket 221. The support 221 includes a base 2211 installed on the rack and parallel to the end face of the turntable 21, and a support column 2212 fixedly connected to the base 2211 and perpendicular to the end face of the turntable 21. The base 2211 is slidable relative to the frame to move toward and away from the turntable 21, and the impact block 222 is mounted on the support column 2212 and is slidable and fixed along the length of the support column 2212.

Specifically, the base 2211 has a first strip-shaped groove 2213, a first bolt 2214 is inserted into the first strip-shaped groove 2213, a first threaded hole (not shown) is formed in the frame, and the first bolt 2214 passes through the first strip-shaped groove 2213 and is in threaded connection with the first threaded hole to fasten the base 2211. The supporting column 2212 is provided with a second strip-shaped groove 2215, a second bolt 2216 is arranged in the second strip-shaped groove 2215 in a penetrating mode, the impact block 222 is provided with a second threaded hole, and the second bolt 2216 penetrates through the second strip-shaped groove 2215 to be in threaded connection with the second threaded hole so as to fasten the impact block 222. When it is desired to adjust the position of the impact mass 222 relative to the suction cup 25 at the impact mass 222, the position of the impact mass 222 can be changed by sliding the base 2211 over the first bolt 2214 and/or sliding the second bolt 2216 in the second strip 2215.

In another preferred embodiment, as shown in fig. 3, 5 and 6, the impact block 222 has an "L" shape with two abutting edges when viewed from the end of the rotating disk 21 (i.e., when viewed from the front of the rotating disk 21), and the folded corner of the carton abuts against at least one of the abutting edges of the impact block 222 during the unfolding of the carton.

As shown in fig. 1 and 7, the medicine bottle packing apparatus 200 includes a paper cassette transfer belt 30 for transferring the paper cassette and a medicine bottle transfer belt 40 for transferring the medicine bottles, the medicine bottle transfer belt 40 is located behind the paper cassette transfer belt 30, the medicine bottle transfer belt 40 is located below the rotary table 21, and the paper cassette transfer belt 30 is located below the rotary bar 24. The carton conveyor 30 runs synchronously with the vial conveyor 40, and the upper surface of the carton conveyor 30 is laterally juxtaposed to the upper surface of the vial conveyor 40, preferably with the upper surface of the carton conveyor 30 being slightly lower than the upper surface of the vial conveyor 40, e.g., 2-5mm lower.

The carton conveyer belt 30 is provided with a plurality of carton limiting grooves 31 which are arranged at equal intervals along the length direction of the carton conveyer belt, the medicine bottle conveyer belt 40 is provided with a plurality of medicine bottle limiting grooves 41 which are arranged at equal intervals along the length direction of the medicine bottle conveyer belt, and the carton limiting grooves 31 on the upper surface of the carton conveyer belt 30 are in one-to-one correspondence with the medicine bottle limiting grooves 41 on the upper surface of the medicine bottle conveyer belt 40. The medicine bottle conveying belt 40 is further provided with a plurality of pushing mechanisms 50 which are arranged corresponding to the medicine bottle limiting grooves 41 one by one and can work independently. The pushing mechanism 50 is installed in the medicine bottle limiting groove 41 and moves along with the medicine bottle conveying belt 40, when the pushing mechanism 50 moves along with the medicine bottle conveying belt 40, the medicine bottles lying in the corresponding medicine bottle limiting groove 41 can be pushed into the paper boxes lying in the paper box limiting groove 31 by the pushing mechanism 50, and the pushing mechanism 50 can be an electric telescopic rod or an air telescopic rod.

In another preferred embodiment, as shown in fig. 7, the carton conveying belt 30 has a plurality of limiting frames 311, and one carton limiting groove 31 corresponds to one limiting frame 311. Each limiting frame 311 comprises four limiting strips 312 fixedly connected with the carton conveyor belt 30, the four limiting strips 312 are respectively arranged at four right angles of the rectangle, and the carton limiting groove 31 is an accommodating space formed by the four limiting strips 312. To prevent the carton from sliding outward of the carton conveyor 30 when the medicine bottle is pushed into the carton, it is preferable that at least two of the four stopper strips 312 of each stopper frame 311, which are away from the medicine bottle conveyor 40, have an "L" shape in cross section, and the right angle of the "L" shaped stopper strip 312 faces the outside of the rectangle. The cross-section of the two limiting strips 312 close to the medicine bottle conveying belt 40 is in an 'I' shape or an 'L' shape, and when the cross-section is in the 'L' shape, the baffle plate parallel to the medicine bottle conveying belt 40 is short, so that the medicine bottles can be smoothly pushed into the paper box.

In another preferred embodiment, as shown in fig. 1 and 7, the carton conveying belt 30 is an annular conveying belt vertically arranged, each limiting strip 312 is arranged perpendicular to the annular conveying belt, the annular conveying belt comprises two straight line segments arranged in parallel and two arc line segments respectively connecting two ends of the two straight line segments, and the cartons enter the carton conveying belt 30 from carton limiting grooves 31 at the upper ends of the arc line segments close to the straight line segments. In the present embodiment, the medicine bottle conveyor 40 is an endless conveyor arranged vertically or horizontally, and the present invention is not particularly limited.

In another preferred embodiment, as shown in fig. 1 and 7, the endless conveyor comprises two vertical and opposite endless chains 32 and a sprocket mechanism 33 for driving the two endless chains 32 to run, and the manner of driving the endless chains 32 to run by using the sprocket mechanism 33 is the prior art, and the structure and principle thereof are not described in detail. In the four position-limiting strips 312 of each position-limiting frame 311, two position-limiting strips 312 are fixed on each annular chain 32.

The working principle of the medicine bottle boxing machine is as follows:

when the medicine bottle boxing machine is used, the flat box conveying mechanism 10, the paper box conveying belt 30, the medicine bottle conveying belt 40 and the driving mechanism 23 are operated. As shown in fig. 1, when the driving mechanism 23 drives the rotating rod 24 to rotate to the flat box conveying mechanism 10 along with the rotating disc 21, the rotating rod 24 also rotates around its axis to make the suction cup 25 on the rotating rod 24 face the flat box conveying mechanism 10, then the suction cup 25 sucks the paper box at the lowest end of the flat box conveying mechanism 10 (since the suction cup 25 is used for picking up articles, which is not described in detail in the prior art), after sucking the flat box, the flat box on the suction cup does not interfere with the flat box conveying mechanism 10 along with the clockwise rotation of the rotating disc 21 and the clockwise rotation of the flat box along with the rotating rod 24.

As shown in fig. 3, 5 and 6, when the rotating rod 24 rotates with the rotating disc 21 to the collision frame 22 as the rotating disc 21 continues to rotate, the rotating rod 24 also rotates around its axis to make the suction cup 25 on the rotating rod 24 face the collision block 222 of the collision frame 22. In the process of unfolding the paper box, the break angle (acute angle) of the paper box is abutted against one of the abutted edges, along with the continuous rotation of the rotary disc 21 and the rotary rod 24, the break angle of the flat box is continuously abutted against the collision block 222 and unfolded until the break angle is unfolded to be a 90-degree right angle, the flat box is unfolded to be a cuboid paper box, and preferably, at the moment, two adjacent right angles of the paper box are respectively abutted against two abutted edges of the collision block 222. After the carton is fully deployed, the carton leaves the impact mass 222 as the turntable 21 rotates clockwise and counterclockwise and the flat box rotates clockwise with the rotation lever 24.

As shown in fig. 1 and 7, when the rotating rod 24 rotates to the carton conveyor 30 along with the rotating disc 21, the rotating rod 24 also rotates around its axis to make the suction cup 25 thereon face the carton conveyor 30, the suction cup 25 releases the suction force, and the carton falls into the carton limiting groove 31 at the upper end of the arc segment of the carton conveyor 30. Then, the carton moves to the right along with the carton conveyer belt 30, when the carton is located the straightway of the carton conveyer belt 30, the electric telescopic rod 50 in the medicine bottle limiting groove 41 corresponding to the carton limiting groove 31 works, the electric telescopic rod 50 extends gradually while moving to the right along with the medicine bottle conveyer belt 40, the electric telescopic rod 50 pushes the medicine bottle lying down in the medicine bottle limiting groove 41 into the carton lying down in the carton limiting groove 31, and then the electric telescopic rod 50 retracts to the initial length. Because the electric telescopic rod 50 in each medicine bottle limiting groove 41 can work independently, the medicine box boxing device can simultaneously pack a plurality of medicine bottles into the paper boxes, and the efficiency is high.

In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. The paper box unfolding device is characterized by comprising a flat box conveying mechanism for storing and conveying flat boxes, a paper box conveying belt for conveying and unfolding the paper boxes, and a box opening mechanism for picking up the flat boxes at the flat box conveying mechanism, unfolding the flat boxes and conveying the flat boxes to the paper box conveying belt;

the box opening mechanism comprises a rotary plate, a collision frame, a driving mechanism, at least one rotary rod and a sucker, wherein the rotary rods are circumferentially arranged on the rotary plate at intervals, the sucker is arranged on each rotary rod, and the driving mechanism drives the rotary plate to rotate around the axis of the rotary plate and simultaneously drives the rotary rods to rotate around the axis of the rotary plate;

along with the rotation of the rotating rod around the axis of the rotating rod and the revolution around the axis of the rotating disk, the sucking disks face the flat box conveying mechanism, the collision frame and the paper box conveying belt in turn, and when the sucking disks face the collision frame, one folding angle of the flat box can abut against the collision frame to unfold the flat box.

2. The carton unfolding apparatus according to claim 1, wherein said flat box conveying mechanism comprises a obliquely arranged box storage groove, flat boxes in said box storage groove are accumulated at the lower end of said box storage groove, and the edge of the lower end of said box storage groove is provided with a stop block for stopping the flat boxes from falling.

3. A carton opening device according to claim 2, wherein two movable plates extending in the longitudinal direction of the storage tank are provided in the storage tank in parallel, the two movable plates are slidable in the width direction of the storage tank to adjust the distance between the two movable plates, and the flat box is provided between the two movable plates of the storage tank.

4. A carton unfolding apparatus according to claim 1, wherein said collision frame comprises an L-shaped bracket and a collision block mounted on said bracket, said bracket comprises a base mounted on the frame and arranged parallel to the end face of said turn table, and a support pillar fixedly connected to the base and arranged perpendicular to the end face of said turn table, said base is slidable relative to the frame to approach or separate from said turn table, and said collision block is mounted on said support pillar and slidable and fixed along the length direction of said support pillar.

5. A carton unfolding apparatus according to claim 4, wherein said base is provided with a first strip-shaped slot, a first bolt is arranged in said first strip-shaped slot, said frame is provided with a first threaded hole, and said first bolt passes through said first strip-shaped slot and is in threaded connection with said first threaded hole to fasten said base;

the supporting column is provided with a second strip-shaped groove, a second bolt penetrates through the second strip-shaped groove, the collision block is provided with a second threaded hole, and the second bolt penetrates through the second strip-shaped groove and is in threaded connection with the second threaded hole to fasten the collision block.

6. A carton unfolding apparatus according to claim 4, wherein said collision block is of an L-shaped structure having two abutting edges when viewed from the end face of said rotary plate, and the folded corner of the carton abuts against at least one of the abutting edges during the process of unfolding the carton; the flat box is unfolded to be a cuboid paper box, and two adjacent right angles of the paper box are respectively abutted against two abutting edges of the collision block.

7. A carton unfolding apparatus according to any one of claims 1 to 6 and wherein said drive means comprises a first gear coaxially secured to said rotatable disc, a second gear coaxially secured to each of said rotatable bars and each being externally engaged with said first gear, and a power source for driving said first gear in rotation.

8. A carton unfolding apparatus according to any one of claims 1 to 6 wherein said number of said rotating bars is three, said three rotating bars being circumferentially and uniformly distributed on the end face of said rotating disc.

9. A carton unfolding apparatus according to any one of claims 1 to 6 and wherein said bars are disposed perpendicularly to the end faces of said rotatable tray, each bar being spaced along its length by at least two said suction cups which are oriented in the same direction.

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