Automatic discharging device for syringe packaging

Abstract

The utility model provides an automatic blanking device for packaging syringes, which belongs to the field of packaging equipment and comprises a storage structure, an intermittent blanking structure, a feeding structure and a variable-speed linkage structure, syringes are stored in the storage structure, the intermittent blanking structure is mounted on the lower portion of the storage structure, and the variable-speed linkage structure is mounted on the lower portion of the intermittent blanking structure. The feeding structure is installed below the intermittent discharging structure, the variable-speed linkage structure is provided with a high-speed output end and a low-speed output end, the input end of the variable-speed linkage structure is in transmission connection with the power source, and the high-speed output end of the variable-speed linkage structure is in transmission connection with the feeding structure. The low-speed output end of the variable-speed linkage structure is in transmission connection with the intermittent discharging structure, the power source is connected through the variable-speed linkage structure, the intermittent discharging structure and the feeding structure can drive fast feeding and low-speed discharging at the same time through one driving motor, the structure of the device is simplified, the production cost and the damage maintenance probability of the device are reduced, and the production efficiency is improved. And the synchronism and the stability of the equipment are also improved.

Description

Technical Field

[0001] The utility model belongs to the field of packaging equipment, in particular to an automatic unloading device for syringe packaging. Background Art

[0002] Syringes are a common medical device, typically packaged individually. Manual packaging consumes significant manpower and severely limits packaging efficiency, leading to the widespread use of automated packaging equipment. However, the unloading mechanism of current automated packaging equipment requires two separate drive mechanisms for dispensing and feeding, increasing production costs, energy consumption, and maintenance requirements, hindering the industry's development. Utility Model Content

[0003] Based on the above-mentioned problems in the prior art, the utility model provides an automatic unloading device for syringe packaging, which includes a storage structure, an intermittent unloading structure, a feeding structure and a speed-changing linkage structure. The storage structure stores syringes, the intermittent unloading structure is installed at the lower part of the storage structure, and the feeding structure is installed below the intermittent unloading structure. The speed-changing linkage structure is provided with a high-speed output end and a low-speed output end. The input end of the speed-changing linkage structure is transmission-connected to the power source, the high-speed output end of the speed-changing linkage structure is transmission-connected to the feeding structure, and the low-speed output end of the speed-changing linkage structure is transmission-connected to the intermittent unloading structure.

[0004] Among them, the speed change linkage structure includes a power shaft that is transmission-connected to the power source, and a first driving sprocket and a second driving sprocket are fixedly mounted on the power shaft. The first driving sprocket is meshedly connected to the pushing chain of the feeding structure, and the second driving sprocket is transmission-connected to the reduction gear box, and the reduction gear box is transmission-connected to the unloading wheel of the intermittent unloading structure.

[0005] Wherein, the reduction gearbox is a worm gearbox, and the reduction ratio is input: output = 8-12:1, preferably input: output = 10:1.

[0006] Among them, the storage structure is a storage trough fixedly installed on the frame and extending up and down. The storage trough is a rectangular trough and is composed of three trough plates. The three trough plates serve as side walls on three sides of the storage trough, and the remaining side of the storage trough is designed to be open.

[0007] Among them, the intermittent unloading structure includes an axially horizontally extended unloading wheel, which is rotatably mounted to the frame through a rotating shaft, and the rotating shaft is transmission-connected to the worm gearbox, and the surface of the unloading wheel is provided with a plurality of inlay grooves that are interference-fit with the syringe, and a limiting cover covering the unloading wheel is fixedly mounted on the circumference of the unloading wheel, and the limiting cover limits the syringe from sliding out of the inlay groove, and the limiting cover is provided with an upper opening corresponding to the storage tank, and a lower opening corresponding to the pushing chain.

[0008] Among them, a chain groove is provided on the frame, and the feeding structure includes a pushing chain slidingly arranged in the chain groove. The pushing chain is a closed-loop chain, a part of the pushing chain slides in the chain groove, and the other part extends out of the chain groove and engages with the first active sprocket. The pushing chain is provided with a plurality of pushing wings protruding outward, and two limiting plates are fixedly installed on the upper surface of the frame. A feeding trough corresponding to the chain groove is formed between the two limiting plates, and the pushing wings extend into the feeding trough.

[0009] The beneficial effects of the present invention are as follows: by connecting the power source, the intermittent unloading structure and the feeding structure through a variable speed linkage structure, it is possible to simultaneously drive fast feeding and slow unloading through a single drive motor, thereby simplifying the structure of the device, reducing the production cost and the probability of damage and maintenance of the device, and improving the synchronization and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention is a three-dimensional structural diagram of an automatic unloading device for syringe packaging.

[0011] Figure 2 This is a three-dimensional structural diagram of an automatic unloading device for syringe packaging, with part of the shell structure hidden.

[0012] Figure 3 yes Figure 2 Enlarged view of point A.

[0013] Figure 4 yes Figure 3 Schematic diagram of the coordination between the push chain and the syringe at the corresponding position.

[0014] Figure 5 It is a three-dimensional structural diagram of the speed change linkage structure.

[0015] Figure 6 yes Figure 5 Schematic diagram of the corresponding structure from another angle.

[0016] Figure 7 This is a schematic diagram of the coordination between the limit cover and the push chain.

[0017] For the sake of simplicity and clarity of the drawings, only part of the pusher chain is shown in the figure. The complete pusher chain is a closed-loop structure and is connected to the first driving sprocket. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] As attached Figure 1-7The automatic unloading device for syringe packaging shown in the figure includes a storage structure 2, an intermittent unloading structure 3, a feeding structure 4 and a speed-changing linkage structure 5 installed on a frame 1. One end of the frame 1 is connected to the automatic packaging equipment, and the other end is an independent end with a support foot 6 at the bottom. The speed-changing linkage structure 5 includes a power shaft 7 that is transmission-connected to an external motor as a power source. The power shaft 7 is rotationally connected to the frame 1. A first driving sprocket 8 and a second driving sprocket 9 are fixedly mounted on the power shaft 7. The first driving sprocket 8 is directly meshed with the pushing chain 21 of the feeding structure 4 as a high-speed output end. The second driving sprocket 9 is transmission-connected to a transmission shaft 10 through an meshing transmission chain. The transmission shaft 10 is further transmission-connected to a worm gear reduction gearbox through another meshing transmission chain. The worm gear reduction gearbox is transmission-connected to the unloading wheel 14 of the intermittent unloading structure 3 as a low-speed output end. The reduction ratio of the reduction gearbox 11 is input: output = 10:1, that is, the speed of the pushing chain 21 is 10 times the speed of the unloading wheel 14.

[0020] The storage structure 2 is a storage trough fixedly mounted on the frame 1 and extending up and down. Syringes 12 are stored in the storage trough arranged up and down. The storage trough is a rectangular trough and is composed of three trough plates 13. The three trough plates 13 serve as side walls on three sides of the storage trough respectively. The remaining side of the storage trough is designed to be open, which is convenient for observing the remaining amount of the syringe 12 in the storage trough. The trough plate 13 can be provided with a reverse edge on one side of the opening to limit the syringe 12 from sliding out of the opening side, or it can be composed of four trough plates 13 without an opening side. The intermittent unloading structure 3 is installed at the lower part of the storage structure 2.

[0021] The intermittent unloading structure 3 includes an axially horizontally extended unloading wheel 14, which is rotatably mounted to the frame 1 via a rotating shaft 15, and the rotating shaft 15 is transmission-connected to the worm gear reduction gearbox. Ten inlay grooves 16 that are interference-fit with the syringe 12 are evenly spaced on the surface of the unloading wheel 14, and a limiting cover 17 covering the unloading wheel 14 is fixedly mounted on the circumference of the unloading wheel 14, and the limiting cover 17 limits the syringe 12 from sliding out of the inlay groove 16. The limiting cover 17 is provided with an upper opening 18 corresponding to the storage tank, and a lower opening 19 corresponding to the pushing chain 21. The feeding structure 4 is installed below the intermittent unloading structure 3.

[0022] A chain groove 20 is provided on the frame 1, and the feeding structure 4 includes a pushing chain 21 slidingly arranged in the chain groove 20. The pushing chain 21 is a closed-loop chain. A part of the pushing chain 21 slides in the chain groove 20, and the other part extends to the outside of the chain groove 20 and engages with the first driving sprocket 8. The pushing chain 21 is evenly spaced and has a plurality of outwardly protruding pushing wings 22. Two limiting plates 23 are fixedly installed on the upper surface of the frame 1, and a feeding groove 24 corresponding to the chain groove 20 is formed between the two limiting plates 23, and the pushing wings 22 extend into the feeding groove 24.

[0023] When in use, the automatic unloading device provided in this embodiment first fills the storage trough with syringes 12 to be packaged, then starts the motor, which drives the transmission chain and the unloading wheel 14 simultaneously through the power shaft 7. The speed of the transmission chain is 10 times that of the unloading wheel 14. Under the action of gravity, the syringes 12 in the storage trough fall sequentially from the upper opening 18 into the embedding grooves 16 of the unloading wheel 14. The unloading wheel 14 separates the syringes 12 through the embedding grooves 16 and transports them downward to the lower opening 19. A single syringe 12 falls from the lower opening 19 into the feed trough 24. Then, the pusher wing 22, driven by the pusher chain 21, pushes the single syringe 12 toward the packaging equipment, achieving rapid feeding and slow unloading simultaneously driven by a single drive motor.

[0024] The above-described embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An automatic unloading device for syringe packaging, characterized in that: The invention comprises a material storage structure (2), an intermittent material discharge structure (3), a material feeding structure (4) and a speed-changing linkage structure (5); the material storage structure (2) stores a syringe (12); the intermittent material discharge structure (3) is installed at the bottom of the material storage structure (2); the material feeding structure (4) is installed below the intermittent material discharge structure (3); the speed-changing linkage structure (5) is provided with a high-speed output end and a low-speed output end; the input end of the speed-changing linkage structure (5) is transmission-connected to a power source; the high-speed output end of the speed-changing linkage structure (5) is transmission-connected to the material feeding structure (4); and the low-speed output end of the speed-changing linkage structure (5) is transmission-connected to the intermittent material discharge structure (3).

2. The automatic unloading device for syringe packaging according to claim 1, characterized in that: The speed-changing linkage structure (5) includes a power shaft (7) connected to a power source by transmission, a first driving sprocket (8) and a second driving sprocket (9) are fixedly mounted on the power shaft (7), the first driving sprocket (8) is meshedly connected to a pushing chain (21) of a feeding structure (4), the second driving sprocket (9) is connected to a reduction gear box (11), and the reduction gear box (11) is connected to a discharge wheel (14) of an intermittent discharge structure (3) by transmission.

3. The automatic unloading device for syringe packaging according to claim 2, characterized in that: The reduction gearbox (11) is a worm gear reduction gearbox, and the reduction ratio is input: output = 8-12:

1.

4. The automatic unloading device for syringe packaging according to claim 3, characterized in that: The material storage structure (2) is a material storage trough fixedly mounted on the frame (1) and extending up and down. The material storage trough is a rectangular trough and is composed of three trough plates (13). The three trough plates (13) serve as side walls on three sides of the material storage trough, and the remaining side of the material storage trough is designed to be open.

5. The automatic unloading device for syringe packaging according to claim 4, characterized in that: The intermittent unloading structure (3) includes an axially horizontally extended unloading wheel (14), the unloading wheel (14) is rotatably mounted on the frame (1) via a rotating shaft (15), and the rotating shaft (15) is transmission-connected to a worm gear reduction gearbox, a surface of the unloading wheel (14) is provided with a plurality of inlay grooves (16) that are interference-fitted with the syringes (12), a limiting cover (17) covering the unloading wheel (14) is fixedly mounted on the circumference of the unloading wheel (14), and the limiting cover (17) limits the syringes (12) from sliding out of the inlay grooves (16), and the limiting cover (17) is provided with an upper opening (18) corresponding to the storage tank, and a lower opening (19) corresponding to the pushing chain (21).

6. The automatic unloading device for syringe packaging according to claim 5, characterized in that: The frame (1) is provided with a chain groove (20), and the feeding structure (4) includes a pusher chain (21) slidably arranged in the chain groove (20), and the pusher chain (21) is a closed-loop chain. A part of the pusher chain (21) slides in the chain groove (20), and the other part extends outside the chain groove (20) and engages with the first active sprocket (8). The pusher chain (21) is provided with a plurality of pusher wings (22) protruding outward. Two limiting plates (23) are fixedly installed on the upper surface of the frame (1), and a feeding groove (24) corresponding to the chain groove (20) is formed between the two limiting plates (23), and the pusher wings (22) extend into the feeding groove (24).

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