An injection pen assembly system

Abstract

The application discloses an injection pen assembling system, which comprises a circulating conveying device and sequentially arranged cap assembly feeding device, cartridge feeding and assembling device, cartridge pressing device, pen metering assembly feeding and assembling device, pen metering assembly pressing device and good product discharging device along the circulating conveying device. The circulating conveying device is provided with a cap assembly positioning carrier. The good product discharging device is connected with a ring conveying line, which is used for discharging the good injection pen on the circulating conveying device to the ring conveying line. The ring conveying line is provided with a cap assembly conveying carrier. The ring conveying line extends to the buffer section between the cap assembly feeding device and the circulating conveying device. The ring conveying line is connected with a first empty carrier recycling channel and a second empty carrier recycling channel. The injection pen assembling system has the advantages of few assembling steps, high system operation rate and high efficiency.

Description

Technical Field

[0001] This invention relates to the field of food and pharmaceutical packaging machinery and equipment, specifically to an injection pen assembly system. Background Technology

[0002] An injection pen is a medical device used to inject medication, typically for subcutaneous or intramuscular injection. For example... Figure 6 and Figure 7 As shown, the injection pen 1 includes a pen cap assembly 101 (pen holder and pen cap), a pen refill 102, and a pen metering assembly 103 (mechanical device). Currently, the domestic automatic injector market is mainly completed manually or with semi-automatic equipment, resulting in low assembly efficiency and low yield.

[0003] Chinese patent document CN219617121U discloses an injection pen assembly system, in which a support base is provided with a first positioning part for placing mechanical devices, a second positioning part for placing a pen holder, and a third positioning part for placing a pen cap. This system has some drawbacks:

[0004] 1) The system adopts centralized assembly, which requires first placing each component of the injection pen on the corresponding positioning part of the carrier, and then assembling it based on the pen holder. After the pen holder, mechanical device, and pen refill are assembled, the assembled pen holder, mechanical device, and pen refill are then put into the pen cap. The assembly steps are numerous and the assembly efficiency is low.

[0005] 2) The system uses a single conveyor line to complete a series of processes such as loading, transportation, assembly and unloading. When a component on the carrier is not loaded or is in an abnormal position, each carrier still needs to go through a complete cycle of the conveyor line before starting a new round of work. The utilization rate of each process equipment is low and the conveying efficiency is low. Moreover, with the single conveyor line operation, the loading and unloading actions and the assembly and conveying actions cannot be completely synchronized during the loading and unloading process of each component. Sometimes there will be no-load situations, which will also lead to low equipment utilization rate and low conveying efficiency.

[0006] 3) Although the system is equipped with a finished product inspection device, if a component on the carrier is not loaded or is in an abnormal position, the subsequent operation will not stop. The operation will repeat until the assembly is completed. Then the finished product inspection device will detect that the assembly is unqualified and reject it. The yield rate is low and the efficiency is low. Summary of the Invention

[0007] To address the problems existing in the use of the prior art, this invention provides an injection pen assembly system with fewer assembly steps, higher system uptime, and higher efficiency.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A pen assembly system includes a circulating conveyor and, sequentially arranged along the circulating conveyor, a pen cap assembly feeding device, a pen refill feeding and assembly device, a pen refill clamping device, a pen metering assembly feeding and assembly device, a pen metering assembly clamping device, and a good product unloading device. The circulating conveyor is equipped with a pen cap assembly positioning carrier. The good product unloading device is connected to a circular conveyor line for unloading good injection pens from the circulating conveyor onto the circular conveyor line. The circular conveyor line is equipped with a pen cap assembly conveying carrier. The circular conveyor line extends to form a buffer section between the pen cap assembly feeding device and the circulating conveyor. A first empty carrier recovery channel is connected inside the circular conveyor line. The system includes a first channel and a second empty carrier recovery channel. The pen cap assembly feeding device supplies pen cap assemblies to the circulating conveyor. The buffer section buffers pen cap assemblies between the pen cap assembly feeding device and the circulating conveyor. The pen refill feeding and assembly device feeds and assembles pen refills into pen cap assemblies on the pen cap assembly positioning carrier. The pen refill pressing device presses pen refills into pen cap assemblies on the pen cap assembly positioning carrier. The pen metering assembly feeding and assembly device feeds and assembles pen metering assemblies into pen cap assemblies on the pen cap assembly positioning carrier. The pen metering assembly pressing device presses pen metering assemblies into pen cap assemblies on the pen cap assembly positioning carrier to form an injection pen.

[0010] As a further improvement to the above technical solution:

[0011] The pen cap assembly positioning carrier is provided with a positioning groove for positioning the pen cap of the pen cap assembly.

[0012] The pen metering component feeding and assembly device includes a pen metering component feeding mechanism and a pen metering component loading mechanism. The pen metering component loading mechanism is used to feed the pen metering components from the pen metering component feeding mechanism and assemble them onto the pen cap components on the pen cap component positioning carrier.

[0013] The pen metering component feeding and assembly device also includes a pen metering component buffer circulation conveyor line, on which a pen metering component positioning carrier is provided. The pen metering component feeding mechanism includes a first transfer mechanism and a second transfer mechanism. The first transfer mechanism is used to transfer the pen metering components on the pen metering component feeding mechanism to the pen metering component positioning carrier. The second transfer mechanism is used to feed the pen metering components on the pen metering component positioning carrier and assemble them onto the pen cap components on the pen cap component positioning carrier.

[0014] The circulating conveying device is equipped with a pen cap assembly presence detection device between the pen cap assembly feeding device and the pen refill feeding and assembly device, and a pen cap assembly position detection device between the pen refill pressing device and the pen metering assembly feeding and assembly device.

[0015] The circulating conveying device is equipped with a waste removal device between the good product unloading device and the pen cap assembly loading device.

[0016] The pen cap assembly feeding device includes a pen cap assembly feeding mechanism and a pen cap assembly loading mechanism. The pen cap assembly loading mechanism includes a third transfer mechanism located between the pen cap assembly feeding mechanism and the buffer section and a fourth transfer mechanism located between the buffer section and the circulating conveying device. The third transfer mechanism is used to transfer the pen cap assemblies on the pen cap assembly feeding mechanism to the pen cap assembly conveying carrier in the buffer section. The fourth transfer mechanism is used to load the pen cap assemblies on the pen cap assembly conveying carrier in the buffer section to the pen cap assembly positioning carrier in the circulating conveying device.

[0017] The circular conveyor line is equipped with a labeling device between the inlet ends of the first empty carrier recovery channel and the second empty carrier recovery channel. The labeling device is used to label the good quality injection pens on the circular conveyor line.

[0018] A discharge device is provided on one side of the circular conveyor line, and the discharge device is located between the inlet end and the outlet end of the second empty vehicle recovery channel.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The injection pen assembly system of this invention assembles the pen based on a pen cap assembly. The circulating conveyor only needs to assemble the pen refill and pen metering component onto the pen cap assembly positioning carrier to complete the entire assembly of the injection pen. This reduces assembly steps and increases efficiency. Furthermore, both the pen cap assembly positioning carrier on the circulating conveyor and the pen cap assembly conveying carrier on the circular conveyor line are loaded based on the pen cap assembly, facilitating transfer between the two conveyor lines. By setting a buffer section, the pen cap assembly is buffered, ensuring that even if the feeding is interrupted due to reasons such as changing the feeding tray, the empty load rate in the pen cap assembly positioning carrier will not increase, resulting in high system uptime. The circulating conveyor system further enhances efficiency. The system comprises two conveyor lines: a conveying device and a circular conveyor line. Injection pens fed from the good product unloading device are fed into an empty pen cap assembly conveyor at the output of the buffer section. This pen cap assembly conveyor has high utilization, high system uptime, and high conveying efficiency. By setting up a first empty carrier recovery channel and a second empty carrier recovery channel, empty pen cap assembly conveyors can return to the buffer section for the next transfer without needing to complete a full conveyor line cycle. This further enhances system uptime and conveying efficiency. Simultaneously, it prevents empty pen cap assembly conveyors from being transported to secondary processing devices such as labeling devices and discharge devices, reducing the empty load rate at these devices, minimizing secondary intervention, and increasing efficiency. The injection pen assembly system of this invention has the advantages of fewer assembly steps, high system uptime, and high efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the injection pen assembly system of the present invention.

[0022] Figure 2 yes Figure 1 Enlarged view of the intermediate circulation conveyor.

[0023] Figure 3 This is a structural schematic diagram of the pen cap assembly positioning carrier and the pen cap assembly conveying carrier in the injection pen assembly system of the present invention.

[0024] Figure 4 This is a schematic diagram of the positioning carrier for the pen metering component in the injection pen assembly system of the present invention.

[0025] Figure 5 This is a diagram illustrating the assembly process of the injection pen of this invention.

[0026] Figure 6 This is a schematic diagram of the structure of the injection pen of the present invention.

[0027] Figure 7 This is an exploded view of the injection pen of the present invention.

[0028] Legend: 1. Injection pen; 101. Pen cap assembly; 102. Pen refill; 103. Pen metering assembly; 201. Pen cap assembly positioning carrier; 2011. Positioning groove; 202. Pen cap assembly conveying carrier; 203. Pen metering assembly positioning carrier; 301. First transfer mechanism; 302. Second transfer mechanism; 303. Third transfer mechanism; 304. Fourth transfer mechanism; 2. Circulating conveying device; 3. Pen cap assembly feeding device; 31. Pen cap assembly feeding mechanism; 311. Pen cap assembly pallet station; 312. Pen cap assembly unpacking station; 313. Pen cap assembly feeding station; 314. Pen cap assembly empty pallet stacking station; 315. Pen cap assembly empty pallet recycling station; 32. Pen cap assembly feeding mechanism; 4. Pen cap assembly with or without detection device; 5. Pen refill feeding and assembly device; 6. Pen refill clamping device; 7. Pen cap assembly position detection device; 8. Pen metering assembly feeding and assembly device; 81. Pen metering assembly feeding mechanism; 811. Pen metering pallet station; 812. Pen metering unpacking station; 813. Pen metering feeding station; 814. Pen metering empty pallet stacking station; 815. Pen metering empty pallet recycling station; 82. Pen metering assembly feeding mechanism; 83. Pen metering assembly buffer circulation conveyor line; 9. Pen metering assembly clamping device; 10. Good product inspection device; 11. Good product unloading device; 12. Scrap rejection device; 13. Circular conveyor line; 131. Buffer section; 132. Labeling device; 133. Discharge device; 134. First empty carrier recycling channel; 135. Second empty carrier recycling channel. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] like Figures 1 to 5As shown, the injection pen assembly system of this embodiment includes a circulating conveying device 2 and, sequentially arranged along the circulating conveying device 2, a pen cap assembly feeding device 3, a pen refill feeding assembly device 5, a pen refill pressing device 6, a pen metering assembly feeding assembly device 8, a pen metering assembly pressing device 9, and a good product unloading device 11. The circulating conveying device 2 is equipped with a pen cap assembly positioning carrier 201. The good product unloading device 11 is connected to a circular conveyor line 13. The good product unloading device 11 is used to unload good injection pens 1 from the circulating conveying device 2 onto the circular conveyor line 13. The circular conveyor line 13 is equipped with a pen cap assembly conveying carrier 202. The circular conveyor line 13 extends to form a buffer section 131 between the pen cap assembly feeding device 3 and the circulating conveying device 2. The interior of the circular conveyor line 13 is connected to a first empty carrier recovery channel 134 and... The second empty carrier recovery channel 135, the pen cap assembly feeding device 3 for supplying pen cap assembly 101 to the circulating conveying device 2, the buffer section 131 for buffering pen cap assembly 101 between the pen cap assembly feeding device 3 and the circulating conveying device 2, the pen refill feeding and assembly device 5 for feeding pen refill 102 and assembling it into pen cap assembly 101 on pen cap assembly positioning carrier 201, the pen refill pressing device 6 for pressing pen refill 102 into pen cap assembly 101 on pen cap assembly positioning carrier 201, the pen metering assembly feeding and assembly device 8 for feeding pen metering assembly 103 and assembling it into pen cap assembly 101 on pen cap assembly positioning carrier 201, and the pen metering assembly pressing device 9 for pressing pen metering assembly 103 into pen cap assembly 101 on pen cap assembly positioning carrier 201 to form injection pen 1.

[0034] The injection pen assembly system of this embodiment is assembled based on the pen cap assembly 101. The pen cap assembly positioning carrier 201 is circulated on the circulating conveyor 2, and the pen cap assembly conveying carrier 202 is circulated on the circular conveyor line 13. When assembling the injection pen 1, the pen cap assembly feeding device 3 feeds the pen cap assembly 101 buffered on the pen cap assembly conveying carrier 202 on the buffer section 131 of the circular conveyor line 13 to the pen cap assembly positioning carrier 201 on the circulating conveyor 2. On the circulating conveyor 2, the circulating conveyor 2 sequentially conveys the pen cap assembly positioning carrier 201 loaded with pen cap assembly 101 to the pen refill feeding assembly device 5, the pen refill pressing device 6, the pen metering assembly feeding assembly device 8, the pen metering assembly pressing device 9, and the good product unloading device 11. The pen refill feeding assembly device 5 feeds the pen refill 102 and assembles it into the pen cap assembly 101 on the pen cap assembly positioning carrier 201. The pen refill pressing device 6 presses the pen refill 102 into the pen cap assembly. In the pen cap assembly 101 on the positioning carrier 201, the pen metering component feeding and assembly device 8 feeds the pen metering component 103 and assembles it onto the pen cap assembly 101 on the pen cap assembly positioning carrier 201. The pen metering component pressing device 9 presses the pen metering component 103 onto the pen cap assembly 101 on the pen cap assembly positioning carrier 201 to form the injection pen 1. The good product unloading device 11 unloads the assembled injection pen 1 onto the pen cap assembly conveying carrier 202 on the circular conveyor line 13. On the circular conveyor line 13, empty pen cap assembly conveyor 202 passes through buffer section 131 to buffer pen cap assemblies 101. During buffering, pen cap assembly feeding device 3 first feeds pen cap assemblies 101 onto pen cap assembly conveyor 202 in buffer section 131 for buffering, and then feeds pen cap assemblies 101 from pen cap assembly conveyor 202 onto pen cap assembly positioning carrier 201 on circulating conveyor 2. Empty pen cap assembly conveyor 202 continues to convey on the circular conveyor line 13. Good product unloading device 11 unloads assembled injection pens 1 onto empty pen cap assembly conveyor 202. Due to the asynchronous good product unloading rate and pen cap assembly conveyor 202 conveying rate, and the fact that some non-good products cannot be unloaded, some empty pen cap assemblies are conveyed... The conveyor 202 returns to the buffer section 131 through the first empty conveyor recovery channel 134 for the next transfer. Another part of the conveyor 202 carrying pen cap assemblies of injection pens 1 continues to be conveyed to the next processing device, such as the labeling device 132 (the labeling device 132 is located between the feeding end of the second empty conveyor recovery channel 135 and the feeding end of the first empty conveyor recovery channel 134) for corresponding processing. The injection pens 1 that are not qualified are rejected. After rejection, the empty pen cap assembly conveyor 202 returns to the buffer section 131 through the second empty conveyor recovery channel 135 for the next transfer. The qualified injection pens 1 are then discharged. After discharge, the empty pen cap assembly conveyor 202 returns to the buffer section 131 through the circular conveyor line 13 for the next transfer.

[0035] The injection pen assembly system of this embodiment is based on the pen cap assembly 101. The circulating conveyor 2 only needs to assemble the pen core 102 and the pen metering component 103 on the pen cap assembly positioning carrier 201 to complete the entire assembly of the injection pen 1. The assembly steps are few and the assembly efficiency is high. At the same time, the pen cap assembly positioning carrier 201 on the circulating conveyor 2 and the pen cap assembly conveying carrier 202 on the circular conveyor line 13 are both loaded based on the pen cap assembly 101, which also facilitates the transfer between the two conveyor lines. By setting a buffer section 131, the pen cap assembly 101 is buffered in the buffer section 131, so that when the pen cap assembly 101 is being fed, even if the feeding is interrupted due to reasons such as changing the feeding tray, the empty load rate in the pen cap assembly positioning carrier 201 will not increase, and the system can utilize the system. The system boasts high utilization rate. By setting up two conveyor lines—a circulating conveyor device 2 and a ring conveyor line 13—the injection pen pens 1 fed by the good product unloading device 11 are fed into the empty pen cap assembly conveyor 202 output from the buffer section 131. The pen cap assembly conveyor 202 has a high utilization rate, resulting in high system uptime and high conveying efficiency. Furthermore, by setting up a first empty carrier recovery channel 134 and a second empty carrier recovery channel 135, the empty pen cap assembly conveyor 202 can return to the buffer section 131 for the next transfer without needing to undergo a complete cycle of the conveyor line. This further enhances system uptime and conveying efficiency. Simultaneously, it prevents empty pen cap assembly conveyors 202 from being transported to processing devices such as the labeling device 132, reducing the empty rate of the labeling device 132 and minimizing secondary intervention, thus increasing efficiency. The injection pen assembly system of this embodiment has the advantages of fewer assembly steps, high system uptime, and high efficiency.

[0036] Furthermore, in this embodiment, as Figure 3 As shown, the pen cap assembly positioning carrier 201 is provided with a positioning groove 2011 for positioning the pen cap of the pen cap assembly 101. The positioning groove 2011 matches the shape of the pen cap assembly 101 (the pen cap assembly 101 includes a pen holder and a pen cap that fit together, and the positioning groove 2011 specifically matches the shape of the pen cap of the pen cap assembly 101, where the pen cap is also called a pen cover), which is beneficial for the accurate positioning and structural stability of the pen cap assembly 101 on the pen cap assembly positioning carrier 201 during subsequent assembly.

[0037] Furthermore, in this embodiment, as Figure 2 As shown, the pen metering component feeding and assembly device 8 includes a pen metering component feeding mechanism 81 and a pen metering component loading mechanism 82. The pen metering component loading mechanism 82 is used to feed the pen metering component 103 from the pen metering component feeding mechanism 81 and assemble it onto the pen cap component 101 on the pen cap component positioning carrier 201. By separating the feeding and loading of the pen metering component 103, it is beneficial to ensure that the loading process of the pen metering component 103 is uninterrupted and improve the utilization rate of the device.

[0038] Furthermore, in this embodiment, the pen metering component feeding and assembly device 8 also includes a pen metering component buffer circulation conveyor line 83. The pen metering component buffer circulation conveyor line 83 is equipped with a pen metering component positioning carrier 203. The pen metering component feeding mechanism 82 includes a first transfer mechanism 301 and a second transfer mechanism 302. The first transfer mechanism 301 is used to transfer the pen metering component 103 from the pen metering component feeding mechanism 81 to the pen metering component positioning carrier 203. The second transfer mechanism 302 is used to feed the pen metering component 103 from the pen metering component positioning carrier 203 and assemble it onto the pen cap component 101 on the pen cap component positioning carrier 201. By setting up the pen metering component buffer circulation conveyor line 83 to buffer the pen metering component 103, even if the feeding is interrupted due to reasons such as changing the feeding tray, the empty load rate in the pen metering component positioning carrier 203 will not increase, thus improving the device's operating rate.

[0039] Preferably, the pen metering component feeding mechanism 81 includes a pen metering pallet station 811, a pen metering unpacking station 812, a pen metering loading station 813, a pen metering empty pallet stacking station 814, and a pen metering empty pallet recycling station 815 arranged sequentially. A whole stack of pen metering component pallets is manually or automatically transported by an AGV to the pen metering pallet station 811, and then conveyed to the pen metering unpacking station 812 to unpack multi-layer pallets into single-layer pallets. The single-layer pallets are then conveyed to the pen metering loading station 813, where the first transfer mechanism 301 transfers the pen metering components 103 from the loading station 813 to the pen metering component positioning carrier 203 on the pen metering component buffer circulation conveyor line 83. After the transfer is completed, the empty pallets are conveyed to the empty pen metering pallet stacking station 814 for stacking, and then conveyed to the empty pen metering pallet recycling station 815 where they are manually or automatically transported by an AGV to the empty pallet temporary storage area.

[0040] Furthermore, in this embodiment, the circulating conveying device 2 is provided with a pen cap assembly presence / absence detection device 4 between the pen cap assembly feeding device 3 and the pen refill feeding and assembly device 5, and a pen cap assembly position detection device 7 is provided between the pen refill pressing device 6 and the pen metering assembly feeding and assembly device 8. The pen cap assembly presence / absence detection device 4 detects whether the pen cap assembly positioning carrier 201 is carrying a pen cap assembly 101 before assembling the pen refill 102. If the pen cap assembly 101 is not carrying a pen cap assembly 101, the pen refill 102 is not assembled. The pen cap assembly position detection device 7 detects whether the pen cap assembly 101 on the pen cap assembly positioning carrier 201 is accurately positioned before assembling the pen metering assembly 103. If the pen cap assembly 101 is not accurately positioned, the pen metering assembly 103 is not assembled, thereby improving the yield rate and assembly efficiency.

[0041] Furthermore, in this embodiment, as Figure 1As shown, the circulating conveyor 2 is equipped with a rejecting device 12 between the good product unloading device 11 and the pen cap assembly loading device 3. On the circulating conveyor 2, the assembled good product injection pen 1 is unloaded by the good product unloading device 11, and the non-good product is rejected by the rejecting device 12. The empty pen cap assembly positioning carrier 201 after unloading and rejection returns to the pen cap assembly loading device 3, realizing the cyclic assembly.

[0042] Furthermore, in this embodiment, as Figure 2 As shown, the pen cap assembly feeding device 3 includes a pen cap assembly feeding mechanism 31 and a pen cap assembly feeding mechanism 32. The pen cap assembly feeding mechanism 32 includes a third transfer mechanism 303 located between the pen cap assembly feeding mechanism 31 and the buffer section 131, and a fourth transfer mechanism 304 located between the buffer section 131 and the circulating conveyor 2. The third transfer mechanism 303 is used to transfer the pen cap assembly 101 on the pen cap assembly feeding mechanism 31 to the pen cap assembly conveying carrier 202 of the buffer section 131. The fourth transfer mechanism 304 is used to feed the pen cap assembly 101 on the pen cap assembly conveying carrier 202 of the buffer section 131 to the pen cap assembly positioning carrier 201 of the circulating conveyor 2. By setting the buffer section 131 to buffer the pen cap assembly 101, even if the feeding is interrupted due to reasons such as changing the feeding tray, the empty load rate in the pen cap assembly positioning carrier 201 will not increase, thereby improving the utilization rate of the device.

[0043] Preferably, the pen cap assembly feeding mechanism 31 includes a pen cap assembly pallet station 311, a pen cap assembly unpacking station 312, a pen cap assembly loading station 313, a pen cap assembly empty pallet stacking station 314, and a pen cap assembly empty pallet recycling station 315 arranged sequentially. A whole stack of pen cap assembly pallets is manually or automatically transported by an AGV to the pen cap assembly pallet station 311, and then conveyed to the pen cap assembly unpacking station 312 to unpack the multi-layer pallets into single-layer pallets. The single-layer pallets are then conveyed to the pen cap assembly loading station 313, where a third transfer mechanism 303 transfers the pen cap assemblies 101 from the loading station 313 to the pen cap assembly conveyor 202 in the buffer section 131. After the transfer is completed, the empty pallets are conveyed to the pen cap assembly empty pallet stacking station 314 for empty pallet stacking, and then conveyed to the pen cap assembly empty pallet recycling station 315 where they are manually or automatically transported by an AGV to the empty pallet temporary storage area.

[0044] Furthermore, in this embodiment, a labeling device 132 is provided between the inlet ends of the first empty carrier recovery channel 134 and the second empty carrier recovery channel 135 on the circular conveyor line 13. The labeling device 132 is used to label the good injection pens 1 on the circular conveyor line 13. The labeling device 132 is located between the inlet ends of the first empty carrier recovery channel 134 and the second empty carrier recovery channel 135, which facilitates the return of empty pen cap assembly conveyor carriers 202 from the first empty carrier recovery channel 134, so that all pen cap assembly conveyor carriers 202 entering the labeling device 132 are loaded with pen cap assemblies 101. At the same time, it also facilitates the rejection and return of unqualified injection pens 1 from the second empty carrier recovery channel 135, so that the final output is all qualified injection pens 1.

[0045] Furthermore, in this embodiment, a discharge device 133 is provided on one side of the circular conveyor line 13, and the discharge device 133 is located between the inlet end and the outlet end of the second empty carrier recovery channel 135. By setting the discharge device 133 between the inlet end and the outlet end of the second empty carrier recovery channel 135, the pen cap assembly conveyor 202 carrying defective products in front of the second empty carrier recovery channel 135 is rejected and returned, and the empty pen cap assembly conveyor 202 is returned, so that the products finally conveyed to the discharge device 133 for discharge are all good quality injection pens 1 with qualified labels. After the discharge is completed, the empty pen cap assembly conveyor 202 is returned for the next transfer.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of the present invention. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall still fall within the protection scope of the technical solutions of the present invention.

Claims

1. An injection pen assembly system, characterized in that: The device includes a circulating conveyor (2) and a pen cap assembly feeding device (3), a pen refill feeding and assembly device (5), a pen refill pressing device (6), a pen metering assembly feeding and assembly device (8), a pen metering assembly pressing device (9), and a good product unloading device (11) arranged sequentially along the circulating conveyor (2). The circulating conveyor (2) is provided with a pen cap assembly positioning carrier (201). The good product unloading device (11) is connected to a ring conveyor line (13) for unloading good injection pens (1) from the circulating conveyor (2) onto the ring conveyor line (13). The ring conveyor line (13) is provided with a pen cap assembly conveying carrier (202). The ring conveyor line (13) extends to form a buffer section (131) between the pen cap assembly feeding device (3) and the circulating conveyor (2). The ring conveyor line (13) is internally connected to a first empty carrier recovery channel (134) and a second empty carrier recovery channel (135). The pen cap assembly feeding device (3) is used to supply pen cap assemblies (101) to the circulating conveyor device (2). The buffer section (131) is used to buffer pen cap assemblies (101) between the pen cap assembly feeding device (3) and the circulating conveyor device (2). The pen refill feeding and assembly device (5) is used to feed and assemble pen refills (102) into pen cap assemblies (101) on the pen cap assembly positioning carrier (201). The pen refill pressing device (6) is used to press pen refills (102) into the pen cap assemblies (101). 02) Pressed into the pen cap assembly (101) on the pen cap assembly positioning carrier (201), the pen metering assembly feeding and assembly device (8) is used to feed the pen metering assembly (103) and assemble it onto the pen cap assembly (101) on the pen cap assembly positioning carrier (201), and the pen metering assembly pressing device (9) is used to press the pen metering assembly (103) onto the pen cap assembly (101) on the pen cap assembly positioning carrier (201) to form an injection pen (1); The circular conveyor line (13) is provided with a labeling device (132) between the feed ends of the first empty carrier recovery channel (134) and the second empty carrier recovery channel (135). The labeling device (132) is used to label the good products of the injection pen (1) on the circular conveyor line (13).

2. The injection pen assembly system according to claim 1, characterized in that: The pen cap assembly positioning carrier (201) is provided with a positioning groove (2011) for positioning the pen cap of the pen cap assembly (101).

3. The injection pen assembly system according to claim 1, characterized in that: The pen metering component feeding and assembly device (8) includes a pen metering component feeding mechanism (81) and a pen metering component feeding mechanism (82). The pen metering component feeding mechanism (82) is used to feed the pen metering component (103) on the pen metering component feeding mechanism (81) and assemble it onto the pen cap component (101) on the pen cap component positioning carrier (201).

4. The injection pen assembly system according to claim 3, characterized in that: The pen metering component feeding and assembly device (8) further includes a pen metering component buffer circulation conveyor line (83), on which a pen metering component positioning carrier (203) is provided. The pen metering component feeding mechanism (82) includes a first transfer mechanism (301) and a second transfer mechanism (302). The first transfer mechanism (301) is used to transfer the pen metering component (103) on the pen metering component feeding mechanism (81) to the pen metering component positioning carrier (203). The second transfer mechanism (302) is used to feed the pen metering component (103) on the pen metering component positioning carrier (203) and assemble it onto the pen cap component (101) on the pen cap component positioning carrier (201).

5. The injection pen assembly system according to claim 1, characterized in that: The circulating conveying device (2) is provided with a pen cap assembly presence detection device (4) between the pen cap assembly feeding device (3) and the pen refill feeding assembly device (5), and the circulating conveying device (2) is provided with a pen cap assembly position detection device (7) between the pen refill pressing device (6) and the pen metering assembly feeding assembly device (8).

6. The injection pen assembly system according to any one of claims 1-5, characterized in that: The circulating conveying device (2) is equipped with a waste removal device (12) between the good product unloading device (11) and the pen cap assembly loading device (3).

7. The injection pen assembly system according to any one of claims 1-5, characterized in that: The pen cap assembly feeding device (3) includes a pen cap assembly feeding mechanism (31) and a pen cap assembly feeding mechanism (32). The pen cap assembly feeding mechanism (32) includes a third transfer mechanism (303) located between the pen cap assembly feeding mechanism (31) and the buffer section (131) and a fourth transfer mechanism (304) located between the buffer section (131) and the circulating conveying device (2). The third transfer mechanism (303) is used to transfer the pen cap assembly (101) on the pen cap assembly feeding mechanism (31) to the pen cap assembly conveying carrier (202) of the buffer section (131). The fourth transfer mechanism (304) is used to feed the pen cap assembly (101) on the pen cap assembly conveying carrier (202) of the buffer section (131) to the pen cap assembly positioning carrier (201) of the circulating conveying device (2).

8. The injection pen assembly system according to any one of claims 1 to 5, characterized in that: A discharge device (133) is provided on one side of the circular conveyor line (13), and the discharge device (133) is located between the inlet end and the outlet end of the second empty vehicle recovery channel (135).

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