Needle protection cover assembly system

Abstract

A needle protection sleeve assembly system, comprising an assembly seat, a needle protection sleeve feeding mechanism, a needle protection sleeve fixing mechanism, a needle assembly feeding mechanism, and a needle assembly pressing mechanism; the assembly seat comprises a needle protection sleeve fixing groove and a needle assembly positioning column; the top and front openings of the needle protection sleeve fixing groove; the needle assembly positioning column is vertically arranged, arranged outside the needle protection sleeve fixing groove, and located at the front opening of the needle protection sleeve fixing groove; the needle protection sleeve feeding mechanism is used to move the needle protection sleeve into the needle protection sleeve fixing groove; the needle protection sleeve fixing mechanism is used to fix the needle protection sleeve in the needle protection sleeve fixing groove; the needle assembly feeding mechanism is used to move the needle assembly onto the needle assembly positioning column; the needle assembly pressing mechanism is used to press the needle assembly to move the needle assembly downward on the needle assembly positioning column. The system can conveniently and quickly assemble the needle assembly and the needle protection sleeve together.

Description

Technical Field

[0001] The invention relates to the field of syringe manufacturing, in particular to a needle protection sleeve assembly system. Background Art

[0002] like Figure 2 As shown, the existing needle assembly 6 generally includes a needle seat 602 for connecting to the front end of the syringe barrel, a needle fixed in the needle seat 602, and a needle cap 601 sleeved on the needle. When the needle assembly 6 is a disposable item, it needs to be replaced after the injection, and the needle seat 602 needs to be removed from the front end of the syringe barrel to replace the needle assembly 6. Discarded needles are often discarded in a trash can. If the needle cap 601 is not covered, it is easy to hurt people. Even if the needle cap 601 is covered, the needle cap 601 is easy to fall off, and some needle caps 601 are even lost during injection.

[0003] In order to solve this problem, a needle protection cover 7 is now added to the needle assembly 6. Figure 1 and 2 As shown, a "C"-shaped card interface 603 is provided on the needle seat 602, and then a docking shaft 701 is provided on the needle protection sleeve 7. The docking shaft 701 is inserted into the card interface 603 to form a hinge structure, so that the needle protection sleeve 7 can be turned around the needle seat 602. When injecting, the needle protection sleeve 7 is turned over to make the needle protection sleeve 7 away from the needle. After the injection, the needle protection sleeve 7 is turned over again to make the needle protection sleeve 7 close to the needle and cover the needle. Figure 1 As shown in the figure, due to the existence of the needle protection cover 7, the discarded needle is no longer easy to hurt people.

[0004] Most of the existing needle protection sleeves 7 and needle components 6 are assembled manually, that is, the card interface 603 is manually docked with the card connection shaft; there is no convenient and fast assembly equipment to complete the assembly of the needle protection sleeve 7 and the needle component 6; this leads to low transfer efficiency and high manual fatigue intensity; therefore, it is particularly necessary to design a convenient and fast needle protection sleeve 7 assembly equipment to assemble the needle protection sleeve 7 and the needle component 6. Summary of the invention

[0005] The purpose of the present invention is to provide a needle protection cover assembly system in view of the above-mentioned problems, which can conveniently and quickly assemble the needle assembly and the needle protection cover together.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A needle protection sleeve assembly system comprises an assembly seat, a needle protection sleeve feeding mechanism, a needle protection sleeve fixing mechanism, a needle assembly feeding mechanism, and a needle assembly pressing mechanism;

[0008] The assembly seat comprises a needle protection sleeve fixing groove and a needle assembly positioning column; the top and front of the needle protection sleeve fixing groove are open; the needle assembly positioning column is vertically arranged, arranged outside the needle protection sleeve fixing groove, and located at the front opening of the needle protection sleeve fixing groove; when the needle assembly positioning column is subjected to a downward external force, it will move downward, and when the external force disappears, it will move upward;

[0009] The needle protection cover feeding mechanism is used to move the needle protection cover into the needle protection cover fixing groove;

[0010] The needle protection cover fixing mechanism is used to fix the needle protection cover in the needle protection cover fixing groove;

[0011] The needle assembly loading mechanism is used to move the needle assembly onto the needle assembly positioning column;

[0012] The needle assembly pressing mechanism is used to press the needle assembly to move the needle assembly downward on the needle assembly positioning column.

[0013] Furthermore, the assembly seat includes a seat body, and the needle protection sleeve fixing groove is arranged on the top of the seat body; the needle assembly positioning column is arranged on the front side of the seat body through an upper fixing bar and a lower fixing bar; a through upper guide hole is provided on the upper fixing bar, and a through lower guide hole is provided on the lower fixing bar; a spring is sleeved on the needle assembly positioning column, and a spring limiting boss is fixedly provided on the upper part of the needle assembly positioning column, and the upper end of the spring contacts the bottom of the spring limiting boss; the lower end of the needle assembly positioning column is inserted into the lower guide hole, and the lower end of the spring contacts the top of the lower fixing bar; the upper end of the needle assembly positioning column is inserted into the upper guide hole and extends out of the upper guide hole, and the top of the spring limiting boss contacts the bottom of the upper fixing bar.

[0014] Furthermore, a positioning baffle is provided on the top of the upper fixing strip, and the positioning baffle is located on the side of the needle assembly positioning column away from the needle protection sleeve fixing groove, so that the needle assembly positioning column is clamped between the positioning baffle and the needle protection sleeve fixing groove; the height of the positioning baffle is higher than the height of the needle assembly positioning column extending out of the upper guide hole.

[0015] Furthermore, along the length direction of the seat body, a plurality of needle protection sleeve fixing grooves are arranged on the top of the seat body; along the length direction of the upper fixing bar and the lower fixing bar, a plurality of needle assembly positioning columns are inserted between the upper fixing bar and the lower fixing bar, and each needle assembly positioning column is sleeved with a spring; the number of the needle protection sleeve fixing grooves is equal to the number of the needle assembly positioning columns.

[0016] Furthermore, the needle protection sleeve feeding mechanism includes a needle protection sleeve grasping portion for grasping the needle protection sleeve and a needle protection sleeve grasping portion moving mechanism for driving the needle protection sleeve grasping portion to move;

[0017] The needle assembly feeding mechanism comprises a needle assembly grasping portion for grasping the needle assembly and a needle assembly grasping portion moving mechanism for driving the needle assembly grasping portion to move.

[0018] Furthermore, the needle guard fixing mechanism includes a tooth plate, a pressing tooth and a tooth plate moving mechanism; the pressing tooth is arranged on the tooth plate, and the tooth plate is connected to the tooth plate moving mechanism; the pressing tooth can be inserted into the needle guard fixing groove, and is used to press the needle guard into the needle guard fixing groove; the tooth plate moving mechanism is used to drive the tooth plate to move.

[0019] Furthermore, the needle assembly pressing mechanism includes a pressing plate for pressing the needle assembly and a pressing plate moving mechanism for driving the pressing plate to move.

[0020] Furthermore, the needle protection cover assembly system is provided with two rows of assembly seats, each row includes a plurality of assembly seats, and the two rows of assembly seats move in opposite directions respectively under the drive of the assembly seat moving system.

[0021] Furthermore, the assembly seat moving system includes a transport plate; along the length direction of the transport plate, a left guide bar, a middle guide bar, a right guide bar, a front stopper and a rear stopper are arranged in parallel on the transport plate; the left guide bar is located on the left side of the transport plate, the middle guide bar is located in the middle of the transport plate, and the right guide bar is located on the right side of the transport plate; the left guide bar, the middle guide bar and the right guide bar cooperate with the upper surface of the transport plate to form two parallel transport channels on the transport plate, namely the left transport channel and the right transport channel; the front stopper is located at the front end of the transport plate, and the rear stopper is located at the rear end of the transport plate, so as to close the front and rear ends of the two transport channels;

[0022] The length of the middle guide bar is smaller than that of the left guide bar and the right guide bar, so that the front and rear ends of the two transport channels can be connected to each other;

[0023] A plurality of assembly seats are provided in the left transport channel and the right transport channel;

[0024] A left longitudinal displacement driving mechanism is disposed at the rear end of the left transport channel, and the left longitudinal displacement driving mechanism is used to push the assembly seat in the left transport channel to move from the rear to the front;

[0025] A right longitudinal displacement driving mechanism is disposed at the front end of the right transport channel, and the right longitudinal displacement driving mechanism is used to push the assembly seat in the right transport channel to move from front to back;

[0026] A left lateral displacement driving mechanism is disposed at the front end of the left transport channel, and the left lateral displacement driving mechanism is used to push the assembly seat in the left transport channel into the right transport channel;

[0027] A right lateral displacement driving mechanism is arranged at the rear end of the right transport channel, and the right lateral displacement driving mechanism is used to push the assembly seat in the right transport channel into the left transport channel.

[0028] Further, a left slide groove is provided at the rear end of the left transport channel, and the left slide groove extends along the length direction of the left transport channel and passes through the transport plate; the left longitudinal displacement driving mechanism is a left longitudinal displacement cylinder, and the left longitudinal displacement cylinder is located below the transport plate and is arranged along the length direction of the left transport channel, and a left slider is provided at the end of the piston rod of the left longitudinal displacement cylinder, and the left slider passes through the left slide groove and can slide in the left slide groove, and the left slider is used to contact with the rear end of the assembly seat in the left transport channel, and is used to push the assembly seat to move;

[0029] The front end of the right transport channel is provided with a right slide groove, and the right slide groove extends along the length direction of the right transport channel and penetrates the transport plate; the right longitudinal displacement driving mechanism is a right longitudinal displacement cylinder, and the right longitudinal displacement cylinder is located below the transport plate and is arranged along the length direction of the right transport channel. The piston rod end of the right longitudinal displacement cylinder is provided with a right slider, and the right slider penetrates the right slide groove and can slide in the right slide groove. The right slider is used to contact with the front end of the assembly seat in the right transport channel, and is used to push the assembly seat to move;

[0030] The front end of the left guide bar is provided with an entrance of a left lateral displacement driving mechanism, the left lateral displacement driving mechanism is located on the left side of the left guide bar, and the left lateral displacement driving mechanism is a left lateral displacement cylinder. When the piston rod of the left lateral displacement cylinder extends into the left transport channel through the entrance of the left lateral displacement driving mechanism, it can push the assembly seat in the left transport channel to move toward the right transport channel;

[0031] A right lateral displacement driving mechanism entrance is opened at the rear end of the right guide bar, and the right lateral displacement driving mechanism is located on the right side of the right guide bar. The right lateral displacement driving mechanism is a right lateral displacement cylinder. When the piston rod of the right lateral displacement cylinder extends into the right transport channel through the right lateral displacement driving mechanism entrance, it can push the assembly seat in the right transport channel to move toward the left transport channel.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] The assembly system of the present invention can quickly assemble the needle protection cover and the needle assembly together through the cooperation among the assembly seat, the needle protection cover feeding mechanism, the needle protection cover fixing mechanism, the needle assembly feeding mechanism and the needle assembly pressing mechanism, thereby improving the assembly efficiency and reducing the manual fatigue strength.

[0034] At the same time, the needle assembly positioning column on the assembly seat can move downward, avoiding a hard collision between the needle assembly and the needle assembly positioning column when the needle assembly is pressed, thereby avoiding damage to the needle assembly; at the same time, the needle assembly positioning column can always support the needle assembly upward under the action of the spring, thereby ensuring the positioning of the needle assembly, limiting the movement of the needle assembly in the horizontal direction, and ensuring the accuracy of assembly;

[0035] The assembly seat moving system of the present invention can control the reciprocating movement of the assembly seat, facilitates rapid loading, assembly and unloading of materials on each assembly seat, is easy to operate, and improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural diagram of a needle protection cover being mounted on a needle assembly;

[0037] Figure 2 is a structural diagram of a needle assembly and a needle protective cover;

[0038] Figure 3 It is a schematic diagram of the overall structure of the needle protection cover assembly system;

[0039] Figure 4 and Figure 5 It is a structural diagram of the assembly seat;

[0040] Figure 6 It is a structural diagram of the needle protection cover fixing groove;

[0041] Figure 7 and Figure 8 It is a structural diagram of the front and back sides of the needle protection cover fixing mechanism and the needle assembly pressing mechanism;

[0042] Fig. 9 The assembly seats are arranged in two rows and arranged in the left transport channel and the right transport channel;

[0043] Figure 10-12 It is a structural diagram of the assembly seat moving system. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] like Figure 1-12 As shown, the present invention discloses a needle protection cover assembly system, which includes an assembly seat 5, a needle protection cover feeding mechanism 1, a needle protection cover fixing mechanism 3, a needle assembly feeding mechanism 2, and a needle assembly pressing mechanism 4;

[0051] The assembly seat 5 includes a needle protection sleeve fixing groove 501 and a needle assembly positioning column 502; the top and front of the needle protection sleeve fixing groove 501 are open; the needle assembly positioning column 502 is vertically arranged, arranged outside the needle protection sleeve fixing groove 501, and located at the front opening of the needle protection sleeve fixing groove 501; when the needle assembly positioning column 502 is subjected to a downward external force, it will move downward, and when the external force disappears, it will move upward;

[0052] The needle protection cover feeding mechanism 1 is used to move the needle protection cover 7 into the needle protection cover fixing groove 501;

[0053] The needle protection cover fixing mechanism 3 is used to fix the needle protection cover 7 in the needle protection cover fixing groove 501;

[0054] The needle assembly loading mechanism 2 is used to move the needle assembly 6 onto the needle assembly positioning column 502;

[0055] The needle assembly pressing mechanism 4 is used to press the needle assembly 6 to move the needle assembly 6 downward on the needle assembly positioning column 502 .

[0056] Due to the above structure, the top of the needle protection sleeve fixing groove 501 is open, so the needle protection sleeve 7 can be first placed in the needle protection sleeve fixing groove 501 through the needle protection sleeve feeding mechanism 1 to define the position of the needle protection sleeve 7; and then the needle protection sleeve fixing mechanism 3 is used to fix the needle protection sleeve 7 in the needle protection sleeve fixing groove 501 to prevent the needle protection sleeve 7 from moving during assembly; since the front side of the needle protection sleeve fixing groove 501 is open, it is convenient to place the docking shaft 701 set on the needle protection sleeve 7 at the opening, which is convenient for subsequent docking and assembly with the card interface 603 on the needle seat 602; after the needle protection sleeve 7 is fixed, the needle assembly 6 is placed in the needle assembly feeding mechanism 2 Move to the needle assembly positioning column 502; make the needle seat 602 of the needle assembly 6 sleeve on the top of the needle assembly positioning column 502; because the positions of the needle assembly positioning column 502 and the needle protection sleeve fixing groove 501 on the assembly seat 5 are fixed, when the needle assembly 6 and the needle protection sleeve 7 are set on the assembly seat 5, their assembly positions are also fixed. At this time, it is only necessary to use external force to clamp the card interface 603 and the docking shaft 701. The card interface 603 on the needle assembly 6 is located above the docking shaft 701. Therefore, the needle assembly 6 is pressed by the needle assembly pressing mechanism 4 to move the needle assembly 6 downward to complete the assembly of the card interface 603 and the docking shaft 701. During assembly, the needle cap 601 is covered, so the needle assembly pressing mechanism 4 presses the needle cap 601 to avoid damaging the needle.

[0057] like Figure 4-6As shown, the assembly seat 5 includes a seat body 503, and the needle protection sleeve fixing groove 501 is arranged on the top of the seat body 503; the needle assembly positioning column 502 is arranged on the front of the seat body 503 through an upper fixing bar 506 and a lower fixing bar 504; a through upper guide hole is provided on the upper fixing bar 506, and a through lower guide hole is provided on the lower fixing bar 504; a spring 505 is sleeved on the needle assembly positioning column 502, and a spring limiting boss 509 is fixedly provided on the upper part of the needle assembly positioning column 502, and the upper end of the spring 505 contacts the bottom of the spring limiting boss 509; the lower end of the needle assembly positioning column 502 is inserted into the lower guide hole, and the lower end of the spring 505 contacts the top of the lower fixing bar 504; the upper end of the needle assembly positioning column 502 is inserted into the upper guide hole and extends out of the upper guide hole, and the top of the spring limiting boss 509 contacts the bottom of the upper fixing bar 506.

[0058] Due to the above structure, when the needle seat 602 is sleeved on the needle assembly positioning column 502, the positioning is completed, and the assembly position relationship between the needle assembly 6 and the needle protection cover 7 is determined. At this time, the needle assembly 6 can be pushed down to complete the assembly. Since the needle assembly 6 needs to move down, if the needle assembly positioning column 502 cannot move down, when the needle assembly 6 is pressed, the needle assembly 6 and the needle assembly positioning column 502 will collide hard, resulting in damage to the needle assembly 6; while in the present invention, when the needle assembly 6 is pressed, the needle assembly positioning column 502 can also move down under the action of the pressing force, thereby avoiding damage to the needle assembly 6; when the external pressing force disappears, the needle assembly positioning column 502 is reset under the action of the spring 505, so that the upper end of the needle assembly positioning column 502 extends out of the upper guide hole.

[0059] A positioning baffle 507 is provided on the top of the upper fixing strip 506, and the positioning baffle 507 is located on the side of the needle assembly positioning column 502 away from the needle protection sleeve fixing groove 501, so that the needle assembly positioning column 502 is clamped between the positioning baffle 507 and the needle protection sleeve fixing groove 501; the height of the positioning baffle 507 is higher than the height of the needle assembly positioning column 502 extending out of the upper guide hole.

[0060] Due to the presence of the positioning baffle 507, the needle assembly 6 can be clamped between the positioning baffle 507 and the needle protection sleeve fixing groove 501, and the needle assembly 6 is further positioned; at the same time, when the needle seat 602 is set on the opposite side of the card interface 603, it is set to a plane, such as Figure 2 As shown, when the plane contacts the positioning baffle 507, the horizontal rotation of the needle assembly 6 can be limited, further ensuring the accurate assembly of the positioning card interface 603 and the card connection shaft.

[0061] like Figure 6As shown, a positioning notch 508 is provided on the back of the needle protection sleeve fixing groove 501, and the needle protection sleeve fixing groove 501 is used to position the end of the needle protection sleeve 7 for setting the docking shaft 701, and the positioning notch 508 is used to further position the middle of the needle protection sleeve 7 to ensure the stability of positioning during the assembly process.

[0062] Further, such as Figure 4-6 As shown, along the length direction of the seat body 503, a plurality of needle protection sleeve fixing grooves 501 are arranged on the top of the seat body 503; along the length direction of the upper fixing bar 506 and the lower fixing bar 504, a plurality of needle assembly positioning columns 502 are inserted between the upper fixing bar 506 and the lower fixing bar 504, and each needle assembly positioning column 502 is sleeved with a spring 505; the number of the needle protection sleeve fixing grooves 501 is equal to the number of the needle assembly positioning columns 502.

[0063] Due to the above structure, a plurality of needle protection sleeve fixing grooves 501 and a plurality of needle assembly positioning columns 502 are provided on the assembly seat 5, so that the assembly seat 5 can simultaneously complete the assembly of a plurality of needle assemblies 6 and a plurality of needle protection sleeves 7.

[0064] Furthermore, the needle protection sleeve feeding mechanism 1 comprises a needle protection sleeve 7 grasping portion for grasping the needle protection sleeve 7 and a needle protection sleeve 7 grasping portion moving mechanism for driving the needle protection sleeve 7 grasping portion to move.

[0065] In the present invention, the grabbing part of the needle protection cover 7 can adopt the existing manipulator structure, and the moving mechanism of the grabbing part of the needle protection cover 7 can adopt the existing multi-degree-of-freedom manipulator structure, or it can adopt a frame structure composed of a horizontal longitudinal moving cylinder, a horizontal lateral moving cylinder, a vertical moving cylinder and a guide rail.

[0066] The needle assembly feeding mechanism 2 includes a needle assembly 6 grasping portion for grasping the needle assembly 6 and a needle assembly 6 grasping portion moving mechanism for driving the needle assembly 6 grasping portion to move.

[0067] In the present invention, the grasping part of the needle assembly 6 can adopt the existing manipulator structure, and the moving mechanism of the grasping part of the needle assembly 6 can adopt the existing multi-degree-of-freedom manipulator structure, or it can adopt a frame structure composed of a horizontal longitudinal moving cylinder, a horizontal lateral moving cylinder, a vertical moving cylinder and a guide rail.

[0068] Furthermore, the needle shield fixing mechanism 3 includes a tooth plate 302, a pressing tooth 301 and a tooth plate moving mechanism; the pressing tooth 301 is arranged on the tooth plate 302, and the tooth plate 302 is connected to the tooth plate moving mechanism; the pressing tooth 301 can be inserted into the needle shield fixing groove 501, and is used to press the needle shield 7 into the needle shield fixing groove 501; the tooth plate moving mechanism is used to drive the tooth plate 302 to move.

[0069] like Figure 7-8 As shown, a plurality of pressing teeth 301 may be provided on the tooth plate 302 to facilitate positioning of a plurality of needle protection sleeves 7; the number of the pressing teeth 301 is equal to the number of the needle protection sleeve fixing grooves 501. Figure 7 As shown, the pressing tooth 301 is arranged at the bottom of the tooth plate 302, and the top of the tooth plate 302 is connected to the tooth plate moving mechanism through a horizontal connecting plate 303, as shown in FIG. Figure 7-8 As shown, the tooth plate moving mechanism includes two plate-shaped columns, and a lifting cylinder 304 is respectively provided on the top of the two plate-shaped columns. The lifting cylinder 304 is connected to the horizontal connecting plate 303 and is used to drive the tooth plate 302 to move up and down.

[0070] Furthermore, the needle assembly pressing mechanism 4 includes a pressing plate 401 for pressing the needle assembly 6 and a pressing plate moving mechanism for driving the pressing plate 401 to move.

[0071] like Figure 7-8 As shown, the pressing plate moving mechanism includes two columns, a horizontal mounting plate 404 is arranged on the top of the two columns, a driving motor 403 is arranged on the top of the horizontal mounting plate 404, and the front end of the output shaft of the horizontal driving motor 403 passes through the horizontal mounting plate 404 and extends downward to be threadedly connected with the middle part of the pressing plate 401; guide rods 402 are vertically arranged at both ends of the pressing plate 401, and the upper ends of the guide rods 402 pass through the horizontal mounting plate 404. When the driving motor 403 rotates, it drives the pressing plate 401 to move up and down, and at the same time, the guide rods 402 move up and down relative to the horizontal mounting plate 404.

[0072] Further, such as Fig. 9 As shown, the needle protection cover assembly system is provided with two rows of assembly seats 5, each row includes a plurality of assembly seats 5, and the two rows of assembly seats 5 are moved in opposite directions respectively under the drive of the assembly seat moving system.

[0073] Due to the above structure, the assembly seats 5 are arranged in a row and can be moved. When the parts on one assembly seat 5 are assembled, the parts on the next assembly seat 5 are sent over for assembly, thereby improving the processing efficiency.

[0074] like Figure 9-12As shown, the assembly seat moving system includes a transport plate 806; along the length direction of the transport plate 806, a left guide bar 802, a middle guide bar 803, a right guide bar 809, a front stopper 8011 and a rear stopper are arranged in parallel on the transport plate 806; the left guide bar 802 is located on the left side of the transport plate 806, the middle guide bar 803 is located in the middle of the transport plate 806, and the right guide bar 809 is located on the right side of the transport plate 806; the left guide bar 802, the middle guide bar 803 and the right guide bar 809 cooperate with the upper plate surface of the transport plate 806, so that two parallel transport channels appear on the transport plate 806, namely the left transport channel 804 and the right transport channel 808; the front stopper 8011 is located at the front end of the transport plate 806, and the rear stopper is located at the rear end of the transport plate 806, so as to close the front and rear ends of the two transport channels;

[0075] The length of the middle guide bar 803 is smaller than the length of the left guide bar 802 and the right guide bar 809, so that the front and rear ends of the two transport channels can be connected to each other;

[0076] A plurality of assembly seats 5 are provided in the left transport channel 804 and the right transport channel 808;

[0077] The rear end of the left transport channel 804 is provided with a left longitudinal displacement driving mechanism, and the left longitudinal displacement driving mechanism is used to push the assembly seat 5 in the left transport channel 804 to move from the back to the front;

[0078] The front end of the right transport channel 808 is provided with a right longitudinal displacement driving mechanism 8014, and the right longitudinal displacement driving mechanism 8014 is used to push the assembly seat 5 in the right transport channel 808 to move from front to back;

[0079] The front end of the left transport channel 804 is provided with a left lateral displacement driving mechanism 805, and the left lateral displacement driving mechanism 805 is used to push the assembly seat 5 in the left transport channel 804 into the right transport channel 808;

[0080] A right lateral displacement driving mechanism 8010 is disposed at the rear end of the right transport channel 808 , and the right lateral displacement driving mechanism 8010 is used to push the assembly seat 5 in the right transport channel 808 into the left transport channel 804 .

[0081] The middle guide bar 803 is shorter than the left guide bar 802 and the right guide bar 809 by the length of two assembly seats 5, even if the distances from the two ends of the middle guide bar 803 to the front block and the rear block are greater than the length of one assembly seat 5, otherwise the middle guide bar 803 will hinder the movement of the assembly seat 5 between the two transport channels.

[0082] Due to the above structure, when the assembly seats 5 are arranged in a row in the left transport channel 804 with their end to end contact, the left longitudinal displacement drive mechanism only needs to push the last one of the assembly seats 5 in the row to push the entire row of assembly seats 5, so that the entire row of assembly seats 5 moves from back to front in the left transport channel 804; due to the existence of the left lateral displacement drive mechanism 805, when the frontmost assembly seat 5 in the left transport channel 804 moves to the front end of the left transport channel 804, since the two transport channels are connected at this point, the assembly seat 5 can enter the right transport channel 808 under the push of the left lateral displacement drive mechanism 805. Then it moves in the opposite direction under the push of the right longitudinal displacement driving mechanism 8014; the right transport channel 808 is also provided with a plurality of assembly seats 5 that are in head-to-tail contact and arranged in a row; when the assembly seat 5 in the left transport channel 804 enters the front end of the right transport channel 808, it becomes the frontmost assembly seat 5, so pushing the assembly seat 5 can push the other assembly seats 5 to move from front to back in the right transport channel 808; when the last assembly seat 5 in the right transport channel 808 is located at the rear end of the right transport channel 808, under the action of the right lateral displacement driving mechanism 8010, the last assembly seat 5 can be pushed to shift laterally and switch to the left transport channel 804, so as to complete the cyclic movement of the assembly seat 5 on the entire transport plate 806; so that the assembly seat 5 is assembled in the left transport channel 804 and then enters the right transport channel 808 to perform other operations such as unloading. After the operation is completed, the assembly seat 5 can enter the left transport channel 804 again for the next assembly. The left guide bar 802, the middle guide bar 803, and the right guide bar 809 play a guiding role, limiting the left and right swinging of the assembly seat 5 during the movement, and the front block 8011 and the rear block limit the assembly seat 5 from moving out of the front and rear ends of the transportation channel.

[0083] Further, the rear end of the left transport channel 804 is provided with a left slide groove 801, and the left slide groove 801 extends along the length direction of the left transport channel 804 and passes through the transport plate 806; the left longitudinal displacement driving mechanism is a left longitudinal displacement cylinder, and the left longitudinal displacement cylinder is located below the transport plate 806 and is arranged along the length direction of the left transport channel 804. The piston rod end of the left longitudinal displacement cylinder is provided with a left slider, and the left slider passes through the left slide groove 801 and can slide in the left slide groove 801. The left slider is used to contact the rear end of the assembly seat 5 in the left transport channel 804, and is used to push the assembly seat 5 to move;

[0084] The front end of the right transport channel 808 is provided with a right slide groove 807, and the right slide groove 807 extends along the length direction of the right transport channel 808 and passes through the transport plate 806; the right longitudinal displacement driving mechanism 8014 is a right longitudinal displacement cylinder, and the right longitudinal displacement cylinder is located below the transport plate 806 and is arranged along the length direction of the right transport channel 808. The piston rod end of the right longitudinal displacement cylinder is provided with a right slider 8013, and the right slider 8013 passes through the right slide groove 807 and can slide in the right slide groove 807. The right slider 8013 is used to contact with the front end of the assembly seat 5 in the right transport channel 808, and is used to push the assembly seat 5 to move;

[0085] In the above structure, the left longitudinal displacement cylinder and the right longitudinal displacement cylinder are fixedly arranged below the transport plate 806 in order to make better use of space. If they are directly arranged at the front and rear ends of the transport channel along the longitudinal direction of the transport channel and located on the board surface of the transport plate 806, the length of the entire device will be very long. At the same time, the length of the left slide 801 and the right slide 807 is greater than or equal to the length of the assembly seat 5, and the length of the left slide 801 and the right slide 807 is greater than or equal to the stroke of the piston rod of the left longitudinal displacement cylinder and the right longitudinal displacement cylinder. In this way, the moving range of the assembly seat 5 can be fully guaranteed. The cylinder bodies of the left longitudinal displacement cylinder and the right longitudinal displacement cylinder can be fixed on the ground, or can be fixedly arranged on the lower board surface of the transport plate 806, or can be fixed on the support frame supporting the transport plate 806.

[0086] like Fig.12 As shown, in order to ensure that the assembly seat 5 can be pushed to move when the end face of the assembly seat 5 is in contact with the side of the front block 8011 and the rear block, the left slide groove 801 and the right slide groove 807 can be appropriately extended to a certain length toward the bottom of the front block 8011 and the rear block, and the left slider entrance and the right slider entrance 8012 can be respectively opened at the bottom of the front block 8011 and the rear block.

[0087] The front end of the left guide bar 802 is provided with an entrance of a left lateral displacement driving mechanism 805, and the left lateral displacement driving mechanism 805 is located on the left side of the left guide bar 802. The left lateral displacement driving mechanism 805 is a left lateral displacement cylinder. When the piston rod of the left lateral displacement cylinder extends into the left transport channel 804 through the entrance of the left lateral displacement driving mechanism 805, it can push the assembly seat 5 in the left transport channel 804 to move toward the right transport channel 808.

[0088] The rear end of the right guide bar 809 is provided with an entrance of a right lateral displacement driving mechanism 8010, and the right lateral displacement driving mechanism 8010 is located on the right side of the right guide bar 809. The right lateral displacement driving mechanism 8010 is a right lateral displacement cylinder. When the piston rod of the right lateral displacement cylinder extends into the right transport channel 808 through the entrance of the right lateral displacement driving mechanism 8010, it can push the assembly seat 5 in the right transport channel 808 to move toward the left transport channel 804.

[0089] like Fig.12 As shown, since the working stroke of the left lateral displacement cylinder and the right lateral displacement cylinder is short, they can be directly arranged on both sides of the left guide bar 802 and the right guide bar 809, and located on the same plane of the transport plate 806. Fig.12 As shown, a left lateral displacement cylinder mounting plate 8015 and a right lateral displacement cylinder mounting plate are provided on the left and right sides of the transport plate 806, and the left lateral displacement cylinder body and the right lateral displacement cylinder body are directly provided on the left lateral displacement cylinder mounting plate 8015 and the right lateral displacement cylinder mounting plate.

[0090] The operation method of this assembly system is as follows:

[0091] First, fill the left transport channel 804 and the right transport channel 808 with assembly seats 5, so that the assembly seats 5 are arranged in a row with their end to end touching, and the sum of the lengths of the assembly seats 5 is equal to the length of the transport channel. In order for the assembly seats 5 to be able to circulate between the two transport channels, one of the transport channels should have one less assembly seat 5 to leave room for movement. For example: if the length of the left transport channel 804 and the right transport channel 808 is equal to the length of 10 assembly seats 5, then 10 assembly seats 5 are placed in the right transport channel 808, and in order to ensure that the entire transport channel has enough transport space, 9 assembly seats 5 are placed in the left transport channel 804, and the vacant positions are at the front end or rear end of the left transport channel 804, so that the assembly seats 5 can move longitudinally or laterally;

[0092] In this embodiment, 9 assembly seats 5 are placed in the left transport channel 804, and 10 assembly seats 5 are placed in the right transport channel 808. The empty positions are located at the front end of the left transport channel 804 to illustrate the operation method of the present invention.

[0093] After the assembly seat 5 is placed, the needle guard 7 is moved into the needle guard fixing groove 501 by the needle guard loading mechanism 1 arranged on the left or right side of the transport plate 806; the needle assembly 6 is moved onto the needle assembly positioning column 502 by the needle assembly loading mechanism 2 arranged on the left or right side of the transport plate 806; then the left longitudinal displacement driving mechanism pushes the 9 assembly seats 5 in the left transport channel 804 to move forward together by the distance of one assembly seat 5, and the assembly seat 5 equipped with the needle guard 7 and the needle assembly 6 is delivered to the assembly station, and then the needle guard 7 is fixed in the needle guard fixing groove 501 by the needle guard fixing mechanism 3 arranged near the transport plate 806, close to the side of the needle guard fixing groove 501; after fixing, the needle assembly 6 is pressed by the needle assembly pressing mechanism 4, so that the needle assembly 6 moves downward on the needle assembly positioning column 502 to complete the assembly.

[0094] After assembly, the frontmost assembly seat 5 of the left transport channel 804 has been against the front stopper 8011, and the left transverse displacement driving mechanism 805 is required to push the assembly seat 5 into the right transport channel 808. Before the frontmost assembly seat 5 moves to the right transport channel 808, the right transverse displacement driving mechanism 8010 at the right transport channel 808 first pushes the assembly seat 5 at the rear end of the right transport channel 808 to move to the left transport channel 804. After the movement, the right longitudinal displacement driving mechanism 8014 pushes the frontmost assembly seat 5 in the right transport channel 808, so that all the assembly seats 5 in the right transport channel 808 move from front to back by the distance of one assembly seat 5. After the movement is completed, the assembly seats in the left transport channel 804 can be moved into the right transport channel 808 after leaving the front end space of the right transport channel 808. In this way, the assembly seat 5 continuously circulates in the two transport channels, so that loading, assembly and other operations can be performed on the assembly seat 5 in the left transport channel 804, and then the assembly seat 5 enters the right transport channel 808 for unloading and other operations, which greatly improves the delivery efficiency. Unloading can be operated by a robot.

[0095] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A needle protection cover assembly system, characterized by: It comprises an assembly seat (5), a needle protection sleeve feeding mechanism (1), a needle protection sleeve fixing mechanism, a needle assembly feeding mechanism (2), and a needle assembly pressing mechanism (4); The assembly seat (5) includes a needle shield fixing groove and a needle assembly positioning column; the top and front of the needle shield fixing groove are open; the needle assembly positioning column is vertically arranged, arranged outside the needle shield fixing groove, and located at the front opening of the needle shield fixing groove; when the needle assembly positioning column is subjected to a downward external force, it will move downward, and when the external force disappears, it will move upward; The needle protection sleeve loading mechanism (1) is used to move the needle protection sleeve (7) into the needle protection sleeve fixing groove; The needle protection sleeve fixing mechanism is used to fix the needle protection sleeve (7) in the needle protection sleeve fixing groove; The needle assembly loading mechanism (2) is used to move the needle assembly (6) onto the needle assembly positioning column; The needle assembly pressing mechanism (4) is used to press the needle assembly (6) so that the needle assembly (6) moves downward on the needle assembly positioning column; The assembly seat (5) includes a seat body (503), and the needle protection sleeve fixing groove is arranged on the top of the seat body (503); the needle assembly positioning column is arranged on the front of the seat body (503) through an upper fixing strip (506) and a lower fixing strip (504); a through upper guide hole is provided on the upper fixing strip (506), and a through lower guide hole is provided on the lower fixing strip (504); a spring (505) is sleeved on the needle assembly positioning column, and a spring limiting boss (509) is fixedly provided on the upper part of the needle assembly positioning column, and the upper end of the spring (505) contacts the bottom of the spring limiting boss (509); the lower end of the needle assembly positioning column is inserted into the lower guide hole, and the lower end of the spring (505) contacts the top of the lower fixing strip (504); the upper end of the needle assembly positioning column is inserted into the upper guide hole and extends out of the upper guide hole, and the top of the spring limiting boss (509) contacts the bottom of the upper fixing strip (506); A positioning baffle is provided on the top of the upper fixing strip (506), and the positioning baffle is located on the side of the needle assembly positioning column away from the needle protection sleeve fixing groove, so that the needle assembly positioning column is clamped between the positioning baffle and the needle protection sleeve fixing groove; the height of the positioning baffle is higher than the height of the needle assembly positioning column extending out of the upper guide hole; The needle shield fixing mechanism includes a tooth plate, a pressing tooth, and a tooth plate moving mechanism; the pressing tooth is arranged on the tooth plate, and the tooth plate is connected to the tooth plate moving mechanism; the pressing tooth can be inserted into the needle shield fixing groove, and is used to press the needle shield into the needle shield fixing groove; the tooth plate moving mechanism is used to drive the tooth plate to move; The needle protection sleeve assembly system is provided with two rows of assembly seats, each row of assembly seats includes a plurality of assembly seats, and the two rows of assembly seats move in opposite directions respectively under the drive of the assembly seat moving system.

2. The needle protection cover assembly system according to claim 1, characterized in that: Along the length direction of the seat body (503), a plurality of needle protection sleeve fixing grooves are provided on the top of the seat body (503); along the length direction of the upper fixing bar (506) and the lower fixing bar (504), a plurality of needle assembly positioning columns are inserted between the upper fixing bar (506) and the lower fixing bar (504), and each needle assembly positioning column is provided with a spring (505); the number of the needle protection sleeve fixing grooves is equal to the number of the needle assembly positioning columns.

3. The needle protection cover assembly system according to claim 1, characterized in that: The needle protection sleeve feeding mechanism (1) comprises a needle protection sleeve grasping portion for grasping the needle protection sleeve (7) and a needle protection sleeve grasping portion moving mechanism for driving the needle protection sleeve grasping portion to move; The needle assembly loading mechanism (2) comprises a needle assembly grasping portion for grasping the needle assembly (6) and a needle assembly grasping portion moving mechanism for driving the needle assembly grasping portion to move.

4. The needle protection cover assembly system according to claim 1, characterized in that: The needle assembly pressing mechanism (4) comprises a pressing plate (401) for pressing the needle assembly (6) and a pressing plate moving mechanism for driving the pressing plate (401) to move.

5. The needle protection cover assembly system according to claim 1, characterized in that: The assembly seat moving system includes a transport plate (806); along the length direction of the transport plate (806), a left guide bar (802), a middle guide bar (803), a right guide bar (809), a front stopper (8011) and a rear stopper are arranged in parallel on the transport plate (806); the left guide bar (802) is located on the left side of the transport plate (806), the middle guide bar (803) is located in the middle of the transport plate (806), and the right guide bar (809) is located on the transport plate (806). 06); the left guide bar (802), the middle guide bar (803) and the right guide bar (809) cooperate with the upper plate surface of the transport plate (806), so that two parallel transport channels appear on the transport plate (806), namely the left transport channel (804) and the right transport channel (808); the front stopper (8011) is located at the front end of the transport plate (806), and the rear stopper is located at the rear end of the transport plate (806), closing the front and rear ends of the two transport channels; The length of the middle guide bar (803) is shorter than the lengths of the left guide bar (802) and the right guide bar (809), so that the front and rear ends of the two transport channels can be connected to each other; A plurality of assembly seats (5) are provided in both the left transport channel (804) and the right transport channel (808); A left longitudinal displacement driving mechanism is provided at the rear end of the left transport channel (804), and the left longitudinal displacement driving mechanism is used to push the assembly seat (5) in the left transport channel (804) to move from the rear to the front; A right longitudinal displacement driving mechanism (8014) is provided at the front end of the right transport channel (808), and the right longitudinal displacement driving mechanism (8014) is used to push the assembly seat (5) in the right transport channel (808) to move from front to back; A left lateral displacement driving mechanism (805) is provided at the front end of the left transport channel (804), and the left lateral displacement driving mechanism (805) is used to push the assembly seat (5) in the left transport channel (804) into the right transport channel (808); A right lateral displacement driving mechanism (8010) is provided at the rear end of the right transport channel (808), and the right lateral displacement driving mechanism (8010) is used to push the assembly seat (5) in the right transport channel (808) into the left transport channel (804).

6. The needle protection cover assembly system according to claim 5, characterized in that: The rear end of the left transport channel (804) is provided with a left slide groove (801), and the left slide groove (801) extends along the length direction of the left transport channel (804) and passes through the transport plate (806); the left longitudinal displacement driving mechanism is a left longitudinal displacement cylinder, and the left longitudinal displacement cylinder is located below the transport plate (806) and is provided along the length direction of the left transport channel (804); the piston rod end of the left longitudinal displacement cylinder is provided with a left slider, and the left slider passes through the left slide groove (801) and can slide in the left slide groove (801), and the left slider is used to contact the rear end of the assembly seat (5) in the left transport channel (804) and is used to push the assembly seat (5) to move; The front end of the right transport channel (808) is provided with a right slide groove (807), and the right slide groove (807) extends along the length direction of the right transport channel (808) and passes through the transport plate (806); the right longitudinal displacement driving mechanism (8014) is a right longitudinal displacement cylinder, and the right longitudinal displacement cylinder is located below the transport plate (806) and is provided along the length direction of the right transport channel (808); the piston rod end of the right longitudinal displacement cylinder is provided with a right slider (8013), and the right slider (8013) passes through the right slide groove (807) and can slide in the right slide groove (807), and the right slider (8013) is used to contact the front end of the assembly seat (5) in the right transport channel (808) and is used to push the assembly seat (5) to move; The front end of the left guide bar (802) is provided with an entrance for a left lateral displacement driving mechanism. The left lateral displacement driving mechanism (805) is located on the left side of the left guide bar (802). The left lateral displacement driving mechanism (805) is a left lateral displacement cylinder. When the piston rod of the left lateral displacement cylinder extends into the left transport channel (804) through the entrance of the left lateral displacement driving mechanism, it can push the assembly seat (5) in the left transport channel (804) to move toward the right transport channel (808). The rear end of the right guide bar (809) is provided with an entrance to a right lateral displacement drive mechanism. The right lateral displacement drive mechanism (8010) is located on the right side of the right guide bar (809). The right lateral displacement drive mechanism (8010) is a right lateral displacement cylinder. When the piston rod of the right lateral displacement cylinder extends into the right transport channel (808) through the entrance of the right lateral displacement drive mechanism (8010), it can push the assembly seat (5) in the right transport channel (808) to move toward the left transport channel (804).

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