Needle boxing equipment for injection pen

Abstract

The invention discloses injection pen needle boxing equipment which comprises a cabinet, a needle feeding assembly, a grabbing and boxing assembly, a box folding assembly, a weighing assembly and a discharging assembly, and the needle feeding assembly, the grabbing and boxing assembly, the box folding assembly, the weighing assembly and the discharging assembly are arranged on the cabinet. The bagged and packaged needle heads are conveyed to the needle head feeding assembly to be flattened and fed to the grabbing and boxing assembly, the grabbing and boxing assembly sucks the bagged needle heads through a vacuum suction cup and puts the bagged needle heads into a folded packaging box, the box folding assembly feeds stacked paper box plates and automatically folds the box, and the box is automatically sealed after the needle heads are loaded. The weighing assembly carries out weighing after packaging, it is ensured that the number of the packaging boxes meets the packaging requirement, and discharging is carried out through the discharging assembly. According to the syringe needle boxing equipment for the injection pen, full-automatic machining of automatic box folding of packaging boxes, automatic boxing of syringe needles, automatic weighing detection and discharging is achieved, the efficiency is improved, and meanwhile the error rate is reduced.

Description

Technical Field

[0001] The invention relates to the field of automation, in particular to a needle box packaging device for injection pens. Background Art

[0002] Carton is a paper product packaging structure, which is the most widely used type of packaging industrial products. Carton is the most important form of transportation packaging, and it is widely used as sales packaging for various products such as food, medicine, and electronics.

[0003] In the medical field, an injection pen is a device used to inject drugs subcutaneously. The drug in the pen can be injected into the body by matching with a needle. The packaging of the injection pen needle is usually a combination of bag and box. The needle is packed inside a plastic bag and then put into a packaging box. The existing boxing operation is manual, which is not only slow, but also prone to errors, and the packaging appearance is poor. Summary of the invention

[0004] The purpose of the present invention is to provide a needle boxing device for injection pens, which can realize automatic folding of packaging boxes, automatic boxing of needles, automatic weighing detection and fully automated processing of material unloading, thereby improving efficiency and reducing error rate.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a needle boxing device for an injection pen, comprising a cabinet, a needle loading assembly, a grabbing and boxing assembly, a box folding assembly, a weighing assembly and a feeding assembly arranged on the cabinet, wherein: The needle loading assembly includes a loading and flattening mechanism and a conveying track. The flattening mechanism flattens the bagged needles passing through the cylinder and the pressing plate, and delivers them to the grabbing and boxing assembly through the conveying track. The folding box assembly includes a conveying mechanism, a box body feeding mechanism located at one end of the conveying mechanism, a first box folding mechanism, a second box folding mechanism, a third box folding mechanism, a fourth box folding mechanism and a box sealing mechanism which are sequentially arranged on the side of the conveying mechanism. The box body feeding mechanism sucks and delivers the stacked flat box bodies to the end of the conveying mechanism, and at the same time folds and forms the box bodies around by the first box folding mechanism to form a preliminary three-dimensional structure. After the bagged needles are loaded, the extension part of the side of the box body is folded inward by the second box folding mechanism and the third box folding mechanism, and then the box cover is folded by the fourth box folding mechanism to form a complete three-dimensional box body, and finally the box sealing strip is inserted and fixed by the box sealing mechanism. One end of the grabbing and boxing assembly is located on the conveying track, and the other end is located between the first box folding mechanism and the second box folding mechanism, and the needle packaging bag on the conveying track is transferred to the packaging box through the vacuum suction cup; The weighing assembly is provided with a conveying mechanism end, and the weighing is performed by an electronic scale embedded in the conveying mechanism, and at the same time, the weighed box body is pushed to the unloading assembly by a pushing assembly provided on the side of the conveying mechanism; The unloading assembly includes an unloading track, on which a rejection station and a qualified station are provided, wherein a second pushing assembly is provided on the side of the rejection station, and a rejection track is provided on the other side thereof, and a conveyor belt is provided below the qualified station, and the qualified box bodies are sucked from below and sent to the conveyor belt by a lifting assembly.

[0006] Preferably, the feeding and flattening mechanism includes a feeding conveyor belt, a fixed plate arranged above the feeding conveyor belt, a pressing cylinder installed above the fixed plate, and a pressing plate arranged below the fixed plate. The pressing plate is controlled to rise and fall by the pressing cylinder to flatten the bagged needles.

[0007] Preferably, the grabbing and boxing assembly also includes a material pressing mechanism, which includes two groups of cylinders set in opposite directions and a pressure plate fixed to the telescopic end of the cylinder. The two groups of cylinders set in opposite directions drive the two pressure plates to move relatively apart, thereby smoothing the bagged needles outward after boxing.

[0008] Preferably, the conveying mechanism includes two sets of belts arranged in parallel, and limit blocks are provided at intervals on the belt surfaces, side baffles are provided on the outer sides of the two sets of belts, two adjacent limit blocks are used to limit the lateral position of the box body, and the two side baffles are used to limit the longitudinal position of the box body.

[0009] Preferably, the box discharge mechanism includes a box storage mechanism mounted above the conveying mechanism and a lifting and sucking mechanism arranged below the conveying mechanism, wherein the box storage mechanism includes a mounting bracket, a plurality of material blocking rods arranged on the surface of the mounting bracket, an area for placing a flat box body is formed between the plurality of material blocking rods, and the lower end of the material blocking rod has an inwardly inclined supporting rod, and the lifting and sucking mechanism includes a lifting cylinder, a telescopic end of which is equipped with a vacuum suction cup group, and the suction and discharge of the bottom layer of the box body in the box storage mechanism is achieved through the suction cup group cooperating with the lifting cylinder.

[0010] Preferably, the first folding box mechanism is arranged at the end of the conveying mechanism directly below the box storage mechanism, and includes three fixed forming rollers and a group of movable forming rollers. The three fixed forming rollers are arranged at the end of the conveying mechanism in a U shape, and a group of movable forming rollers are arranged at one end of the first folding box mechanism close to the second folding box mechanism, and together with the three fixed forming rollers, they form a square mechanism to achieve preliminary folding and forming of the four sides of the paper box.

[0011] Preferably, the end of the movable forming roller is connected to one end of the swing frame, and the other end of the swing frame is connected to a cylinder fixed on the frame. The seesaw principle is used to control the lifting and pressing of the movable forming roller by the extension and retraction of the cylinder.

[0012] Preferably, the second box folding mechanism includes a box cover guiding assembly arranged on one side of the conveying mechanism and a telescopic folding assembly located on the other side of the conveying mechanism, wherein the box cover guiding assembly includes a mounting frame, an arc-shaped guiding rod fixed on the mounting frame, one end of the arc-shaped guiding rod extends to the first box folding mechanism, the telescopic folding assembly includes a second extension cylinder and a folding plate fixed at the telescopic end of the second cylinder, the third box folding mechanism includes a third cylinder and a folding pressure rod, the folding pressure rod is fixed to the third cylinder through a bracket, and both ends of the folding pressure rod are upwardly tilted.

[0013] Preferably, the fourth box folding mechanism includes a flipping assembly located on one side of the conveying mechanism, and a lifting assembly located on the other side of the conveying mechanism, wherein the flipping assembly includes a pressure plate, a flip seat and a flip cylinder, one end of the pressure plate is hinged to the flip seat, and the middle part is fixed to the telescopic end of the flip cylinder, and the pressure plate is driven by the flip cylinder to flip along the flip seat to realize folding of the box cover, and the lifting assembly includes a second transverse moving module, a second lifting module fixed on the slider of the second transverse moving module, and an L-shaped folding plate fixed to the slider of the second lifting module, the L-shaped folding plate is moved above the box sealing strip by the second transverse moving module, and the L-shaped folding plate is moved downward by the second lifting module, thereby bending the box sealing strip on the side of the box cover downward.

[0014] Preferably, the box sealing mechanism structure comprises a box sealing cylinder and a box sealing push plate provided at the telescopic end of the box sealing cylinder, and the box sealing push plate is controlled to be telescopic by the box sealing cylinder to push the bent end of the box sealing strip into the notch.

[0015] Compared with the prior art, the needle boxing equipment for injection pens disclosed in the present invention has the following beneficial effects: the entire equipment is fully automated, without the need for human intervention, and can be automatically weighed after boxing, and unqualified products can be directly discarded, effectively improving the overall processing efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall structural diagram of an embodiment of the present invention; Figure 2 It is a partial structural diagram of the needle loading assembly in an embodiment of the present invention; Figure 3 It is a structural diagram of a grabbing and box loading component in an embodiment of the present invention; Figure 4 A flattened diagram of a paper box in an embodiment of the present invention; Figure 5 This is a forming diagram of a paper box in an embodiment of the present invention; Figure 6 The structure of the folding box assembly in the embodiment of the present invention is Figure 1 ; Figure 7 The structure of the folding box assembly in the embodiment of the present invention is Figure 2 Figure 8 for Figure 6 A partial enlarged view of the middle A; Fig. 9 for Figure 6 A partial enlarged view of point B in the middle; Fig.10 for Figure 6 A partial enlarged view of point C in the middle. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention provides a needle box loading device for injection pens, comprising a cabinet 1, a needle loading assembly 2 arranged on the cabinet, a grabbing and box loading assembly 3, a box folding assembly 4, a weighing assembly 5 and a unloading assembly 6, wherein the needle loading assembly is connected to the front-end needle packaging equipment, so that the bagged and packaged needles are conveyed to the needle loading assembly for flattening and loading to the grabbing and box loading assembly, the grabbing and box loading assembly sucks the bagged needles through a vacuum suction cup and puts them into a folded packaging box, the box folding assembly loads the stacked paper box boards and automatically folds the boxes, and automatically seals the boxes after the needles are loaded, the weighing assembly performs post-packaging weighing to ensure that the quantity in the packaging box meets the packaging requirements, and unloads through the unloading assembly.

[0019] Specifically, the needle loading assembly structure is as follows: Figure 2 As shown, it includes a feeding flattening mechanism 21 and a conveying track 22, the feeding flattening mechanism includes a moving frame 211, a feeding conveyor belt 212 arranged on the surface of the moving frame, a fixed plate 213 arranged above the feeding conveyor belt, a pressing cylinder 214 installed above the fixed plate, and a pressing plate 215 arranged below the fixed plate. The pressing plate is connected to the pressing cylinder through a connecting assembly, and the pressing cylinder controls the pressing plate to move downward, so as to flatten the bagged needles conveyed below to prevent individual needles from tilting up and affecting subsequent box packaging. Limit baffles 216 are provided on both sides of the feeding conveyor belt, and the limit baffles at both ends of the feeding conveyor belt are outward-expanding structures to facilitate the entry or delivery of bagged needles.

[0020] One end of the conveying track is close to the exit of the loading conveyor belt, and the other end extends to the grabbing and folding box assembly. Baffle plates 221 are evenly spaced on the surface of the conveying track, and an area for placing bagged needles is formed between two adjacent baffle plates, ensuring that there is only one bag of needles in each area, thereby avoiding the situation where multiple needles are grabbed at one time when grabbing and packing.

[0021] The grabbing and boxing assembly realizes the process of grabbing the bagged needles from the conveying track and loading them into the packaging box. Its structure is as follows: Figure 3 As shown, it includes a portal frame 31, a transverse module 32 installed on the side of the portal frame, a lifting module 34 fixed on the slider of the transverse module through a back plate 33, a suction cup seat 35 installed on the slider of the lifting module, and multiple groups of vacuum suction cups 36 fixed on the back of the suction cup seat. The bagged needles are sucked by the vacuum suction cups and delivered to the packaging box for boxing in cooperation with the lifting module and the transverse module.

[0022] A material pressing mechanism is also fixed to the side of the back plate, including two groups of cylinders 37 arranged in opposite directions and a pressing plate 38 fixed to the telescopic end of the cylinder. The pressing plate is placed above the next packaging box to flatten the bagged needles loaded in the box, thereby improving the smoothness of the subsequent box sealing. The descent of the lifting module makes the pressing plate fit the bagged needles, and the two groups of cylinders arranged in opposite directions drive the two pressing plates to move relatively apart, thereby simulating the outward smoothing operation performed by human hands after box loading.

[0023] The packaging box structure is as follows Figure 4 As shown, it has a box bottom 91, four side edges 92 in front, back, left and right, folding ears 93 extending from both ends of the left and right sides, covering edges 94 extending from the left, right and front sides, a box cover 95 extending from the rear side, and a sealing strip 96 extending from the edge of the box cover. After the packaging box is formed, the sealing strip is inserted into the gap 97 between the front side and the box bottom (as shown in FIG. Figure 5 as shown).

[0024] The folding box assembly realizes the processing of the paper box from the initial flat state to the final three-dimensional sealed state, and its structure is as follows Figures 6 and 7 As shown, it includes a conveying mechanism 41, a box body discharging mechanism 42 provided at one end of the conveying mechanism, a first box folding mechanism 43, a second box folding mechanism 44, a third box folding mechanism 45, a fourth box folding mechanism 46 and a box sealing mechanism 47 which are arranged on the side of the conveying mechanism. The discharging mechanism sucks the stacked flat box bodies and sends them to the end of the conveying mechanism, and at the same time, the side edges and folding ears of the box bodies are folded and formed by the first box folding mechanism to form a preliminary three-dimensional structure. After the bagged needles are loaded, the covering edges of the box bodies are folded inwardly by the second box folding mechanism and the third box folding mechanism, and the box cover is folded by the fourth box folding mechanism to form a complete three-dimensional box body, and finally the sealing strips are inserted and fixed by the box sealing mechanism.

[0025] Specifically, the conveying mechanism is a belt-type conveyor. Two sets of belts 411 arranged in parallel realize the transfer of the entire box body at different workstations. At the same time, limit blocks 412 are arranged at intervals on the belt surface, and side baffles 413 are arranged on the outside of the two sets of belts. The two adjacent limit blocks are used to limit the lateral position of the box body, and the two side baffles are used to limit the longitudinal position of the box body. The combination of the two side baffles can achieve complete limitation of the box body to avoid its front, back, left and right displacement. In order to facilitate the discharge of the box body, one end of the conveying mechanism where the box discharge mechanism is fixed is not provided with a bottom plate, while the rest of the parts are provided with a bottom plate to assist in supporting the box body. At the same time, the side baffles start from the rear of the first folding box mechanism and end at the sealing box mechanism. At the same time, both ends of the side baffles are provided with outward expansion openings to facilitate the smooth entry of the paper box.

[0026] The box body discharge mechanism is located at one end of the conveying mechanism, and its structure is as follows Figure 8 As shown, it includes a box body storage mechanism mounted above the conveying mechanism and a lifting and sucking mechanism arranged below the conveying mechanism, the box body storage mechanism includes a mounting bracket 421, a plurality of material blocking rods 422 arranged on the surface of the mounting bracket, an area for placing a flat box body is formed between the plurality of material blocking rods, the lower end of the material blocking rod has an inwardly inclined supporting rod 423, the design of the inclined structure can not only support the bottom of the paper box, but also does not affect the detachment and discharge of the bottom paper box; the lifting and sucking mechanism includes a lifting cylinder 424, the telescopic end of which is equipped with a vacuum suction cup group (not shown in the figure), when in use, the lifting cylinder drives the vacuum suction cup group to rise through the conveying mechanism to suck the bottom of the bottom paper box, and the lifting cylinder then descends to make the bottom paper box detach from the storage mechanism and place it on the conveying mechanism.

[0027] The first box folding mechanism is arranged at the end of the conveying mechanism and is located directly below the box body storage mechanism. Its structure is as follows: Figure 6 and 8 As shown, it includes three fixed forming rollers 431 and a group of movable forming rollers 432. The three fixed forming rollers are arranged at the end of the conveying mechanism in a U shape, and a group of movable forming rollers are arranged at one end of the first folding mechanism close to the second folding mechanism, and together with the three fixed forming rollers, they form a square mechanism to fold the four sides of the paper box to make it initially formed. The movable forming rollers are arranged on the conveying mechanism, one end of which is connected to one end of the swing frame 433, and the other end of the swing frame is connected to the cylinder 434 fixed on the frame. By using the seesaw principle, the cylinder is extended to make the movable forming rollers press on the surface of the conveying mechanism to achieve initial forming of the box body. When the cylinder is retracted, the movable forming rollers are lifted, and at this time, the box body can follow the conveying mechanism to move toward the second folding mechanism.

[0028] In order to facilitate the paper box to enter the first folding mechanism, an introduction plate 435 is provided between the fixed forming rollers and between the fixed forming rollers and the movable forming rollers. The introduction plate is higher than the fixed forming rollers and has an outwardly expanded structure at the upper end, which not only facilitates the entry of the paper box, but also the introduction plate can pre-fold the folding ear part, and then the fixed forming rollers and the movable forming rollers fold and form the surrounding sides.

[0029] The second folding box mechanism and the first folding box mechanism are provided with an empty space for loading the bagged needles. The structure of the second folding box mechanism is as follows: Figure 6 As shown, it includes a box cover guiding assembly arranged on one side of the conveying mechanism and a telescopic folding assembly located on the other side of the conveying mechanism, the box cover guiding assembly includes a mounting frame 441, an arc-shaped guiding rod 442 fixed on the mounting frame, one end of the arc-shaped guiding rod extends to the first box folding mechanism to guide and support the box cover to prevent the box cover from tipping over, the telescopic folding assembly includes a second extension cylinder 443 and a folding plate 444 fixed at the telescopic end of the second cylinder, the folding plate is driven by the second cylinder to move forward and backward, and the covering edge of the front end of the box body is bent inward.

[0030] The third folding box mechanism realizes the inward bending of the left and right covering edges, and its structure is as follows: Fig. 9 As shown, it includes a third cylinder 451 and a folding pressure rod 452. The folding pressure rod is fixed to the third cylinder through a bracket 453, and both ends of the folding pressure rod are tilted upward to achieve the bending operation of the covering edges on the left and right sides of the box body.

[0031] The fourth box folding mechanism realizes the bending process of the box cover and the box sealing strip, and its structure is as follows: Fig. 9 As shown, it includes a flipping assembly located on one side of the conveying mechanism, and a lifting assembly located on the other side of the conveying mechanism, wherein the flipping assembly includes a pressure plate 461, a flip seat 462 and a flip cylinder 463, one end of the pressure plate is hinged to the flip seat, and the middle part is fixed to the telescopic end of the flip cylinder, and the pressure plate is driven by the flip cylinder to flip along the flip seat, so that the box cover is folded, and the lifting assembly includes a second transverse moving module 464, a second lifting module 465 fixed on the second transverse moving module slider, and an L-shaped folding plate 466 fixed to the second lifting module slider, the L-shaped folding plate is moved to above the box sealing strip by the second transverse moving module, and the L-shaped folding plate is moved downward by the second lifting module, so that the box sealing strip is bent downward.

[0032] The box sealing mechanism structure is as follows Fig.10As shown, it includes a box sealing cylinder 471 and a box sealing push plate 472 arranged at the telescopic end of the box sealing cylinder. The box sealing push plate is controlled to be telescopic by the box sealing cylinder to push the bent end of the box sealing strip into the notch 97. In order to facilitate processing, a notch is provided on the side baffle plate of the conveying mechanism at this workstation to facilitate the box sealing processing by the box sealing push plate. At the same time, a flaring structure 473 is provided on the edge of the notch to facilitate the box body after sealing to enter the subsequent workstation. In addition, a cover pressing plate 474 is provided above the conveying mechanism at this workstation to press the box cover from above to prevent it from tilting.

[0033] The weighing assembly is provided with an end of a conveying mechanism, which includes an electronic scale embedded in the conveying mechanism (not shown in the figure). At the same time, a pushing cylinder 51 is provided on the side of the conveying mechanism, and a pushing plate 52 is provided at the end of the pushing cylinder. The conveyed packaging box is weighed by the electronic scale. If it is qualified, it is pushed to the qualified station of the unloading assembly. If it is unqualified, it is pushed to the rejection station of the unloading assembly. The specific station can be switched by controlling the extension distance of the pushing cylinder.

[0034] The unloading assembly includes an unloading track 61, which has a rejection station and a qualified station, wherein a second pushing cylinder 62 is provided on the side of the rejection station, and a second pushing plate 63 is fixed to the telescopic end of the second pushing cylinder. When an unqualified box body is sent to the rejection station, the second pushing cylinder controls the second pushing plate to push the box body out of the rejection track 64. A conveyor belt 65 is provided under the qualified station, and the qualified box body is sucked from the bottom by the lifting assembly 66 and sent to the conveyor belt for transmission to the next process.

[0035] The present invention discloses a needle boxing device for injection pens, which includes a loading part for bagged needles, a packaging box folding part and a boxing part. The entire device is fully automated and does not require human intervention. It can be automatically weighed after boxing, and unqualified products can be directly discarded, effectively improving the overall processing efficiency.

[0036] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for packing needles for injection pens, characterized in that: It includes a cabinet, a needle loading assembly, a grabbing and box loading assembly, a box folding assembly, a weighing assembly and a feeding assembly arranged on the cabinet, wherein: The needle loading assembly includes a loading and flattening mechanism and a conveying track. The flattening mechanism flattens the bagged needles passing through the cylinder and the pressing plate, and delivers them to the grabbing and boxing assembly through the conveying track. The folding box assembly includes a conveying mechanism, a box body feeding mechanism located at one end of the conveying mechanism, a first box folding mechanism, a second box folding mechanism, a third box folding mechanism, a fourth box folding mechanism and a box sealing mechanism which are sequentially arranged on the side of the conveying mechanism. The box body feeding mechanism sucks and delivers the stacked flat box bodies to the end of the conveying mechanism, and at the same time folds and forms the box bodies around by the first box folding mechanism to form a preliminary three-dimensional structure. After the bagged needles are loaded, the extension part of the side of the box body is folded inward by the second box folding mechanism and the third box folding mechanism, and then the box cover is folded by the fourth box folding mechanism to form a complete three-dimensional box body, and finally the box sealing strip is inserted and fixed by the box sealing mechanism. One end of the grabbing and boxing assembly is located on the conveying track, and the other end is located between the first box folding mechanism and the second box folding mechanism, and the needle packaging bag on the conveying track is transferred to the packaging box through the vacuum suction cup; The weighing assembly is provided with a conveying mechanism end, and the weighing is performed by an electronic scale embedded in the conveying mechanism, and at the same time, the weighed box body is pushed to the unloading assembly by a pushing assembly provided on the side of the conveying mechanism; The unloading assembly includes an unloading track, on which a rejection station and a qualified station are provided, wherein a second pushing assembly is provided on the side of the rejection station, and a rejection track is provided on the other side thereof, and a conveyor belt is provided below the qualified station, and the qualified box bodies are sucked from below and sent to the conveyor belt by a lifting assembly.

2. The device for packing needles for injection pens according to claim 1, characterized in that: The feeding and flattening mechanism includes a feeding conveyor belt, a fixed plate arranged above the feeding conveyor belt, a pressing cylinder installed above the fixed plate, and a pressing plate arranged below the fixed plate. The pressing plate is controlled to rise and fall by the pressing cylinder to flatten the bagged needles.

3. The device for packing needles for injection pens according to claim 1, characterized in that: The grabbing and boxing assembly also includes a material pressing mechanism, which includes two groups of cylinders arranged in opposite directions and a pressing plate fixed to the telescopic ends of the cylinders. The two groups of cylinders arranged in opposite directions drive the two pressing plates to move relatively apart, thereby smoothing the bagged needles after boxing outwards.

4. The device for packing needles for injection pens according to claim 1, characterized in that: The conveying mechanism comprises two sets of belts arranged in parallel, and limit blocks are arranged at intervals on the surfaces of the belts, side baffles are arranged on the outer sides of the two sets of belts, two adjacent limit blocks are used to limit the lateral position of the box body, and the two side baffles are used to limit the longitudinal position of the box body.

5. The device for packing needles for injection pens according to claim 1, characterized in that: The box body discharge mechanism includes a box body storage mechanism mounted above the conveying mechanism and a lifting and sucking mechanism arranged below the conveying mechanism, wherein the box body storage mechanism includes a mounting bracket, a plurality of material blocking rods arranged on the surface of the mounting bracket, an area for placing a flat box body is formed between the plurality of material blocking rods, and the lower end of the material blocking rod has a supporting rod inclined inwardly, and the lifting and sucking mechanism includes a lifting cylinder, a telescopic end of which is equipped with a vacuum suction cup group, and the suction and discharge of the bottom layer of the box body in the box body storage mechanism is achieved through the suction cup group cooperating with the lifting cylinder.

6. The device for packing needles for injection pens according to claim 5, characterized in that: The first folding box mechanism is arranged at the end of the conveying mechanism and is located directly below the box storage mechanism, and includes three fixed forming rollers and a group of movable forming rollers. The three fixed forming rollers are arranged at the end of the conveying mechanism in a U shape, and a group of movable forming rollers are arranged at one end of the first folding box mechanism close to the second folding box mechanism, and together with the three fixed forming rollers, they form a square mechanism to achieve preliminary folding and forming of the four sides of the paper box.

7. The device for packing needles for injection pens according to claim 6, characterized in that: The end of the movable forming roller is connected to one end of the swing frame, and the other end of the swing frame is connected to a cylinder fixed on the frame. The seesaw principle is used to control the lifting and pressing of the movable forming roller through the extension and contraction of the cylinder.

8. The device for packing needles for injection pens according to claim 6, characterized in that: The second box folding mechanism includes a box cover guiding assembly arranged on one side of the conveying mechanism and a telescopic folding assembly located on the other side of the conveying mechanism, wherein the box cover guiding assembly includes a mounting frame, an arc-shaped guiding rod fixed on the mounting frame, one end of the arc-shaped guiding rod extends to the first box folding mechanism, the telescopic folding assembly includes a second extension cylinder and a folding plate fixed at the telescopic end of the second cylinder, the third box folding mechanism includes a third cylinder and a folding pressure rod, the folding pressure rod is fixed to the third cylinder through a bracket, and both ends of the folding pressure rod are upwardly tilted.

9. The device for packing needles for injection pens according to claim 8, characterized in that: The fourth box folding mechanism includes a flipping assembly located on one side of the conveying mechanism and a lifting assembly located on the other side of the conveying mechanism, wherein the flipping assembly includes a pressure plate, a flipping seat and a flipping cylinder, one end of the pressure plate is hinged to the flipping seat, and the middle part is fixed to the telescopic end of the flipping cylinder. The pressure plate is driven by the flipping cylinder to flip along the flipping seat to realize folding of the box cover, and the lifting assembly includes a second transverse moving module, a second lifting module fixed on the slider of the second transverse moving module, and an L-shaped folding plate fixed to the slider of the second lifting module. The L-shaped folding plate is moved above the box sealing strip by the second transverse moving module, and the L-shaped folding plate is moved downward by the second lifting module, thereby bending the box sealing strip on the side of the box cover downward.

10. The device for packing needles for injection pens according to claim 9, characterized in that: The box sealing mechanism structure comprises a box sealing cylinder and a box sealing push plate arranged at the telescopic end of the box sealing cylinder. The box sealing cylinder controls the telescopic end of the box sealing push plate to push the bent end of the box sealing strip into the notch.

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