Full-automatic external needle catheter fusion head assembling equipment

Abstract

The invention relates to the technical field of medical instrument manufacturing, in particular to full-automatic external needle catheter fusion head assembling equipment which comprises a material transferring mechanism, a feeding conveying belt and a discharging conveying belt, and the feeding conveying belt and the discharging conveying belt are arranged below the material transferring mechanism. The fuse head assembling equipment further comprises a material carrying rotary table, and the material carrying rotary table is provided with two material carrying tables. The fuse head assembling equipment further comprises a pressing mechanism, and the material transferring mechanism and the pressing mechanism correspond to the two material carrying tables of the material carrying rotary table respectively. Through combination of automatic feeding and discharging, friction welding and hot pressing technologies, automation of the medical instrument production process is promoted, the production efficiency is effectively improved, manual operation errors are reduced, and consistency and precision in the production process are ensured; the friction welding and hot pressing technology ensures high-strength connection and stability between the application patch and the external needle catheter, the automation level of production is improved, and powerful guarantee is provided for product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device manufacturing, and particularly to a fully automatic external needle catheter melt head assembly device. Background Art

[0002] With the continuous development of medical device technology, external needle catheters and dressing patches, as common medical products, are widely used in fields such as infusion, injection, and wound care. When producing these medical devices, how to improve production efficiency, ensure product quality, and ensure the stability of the production process has become a key technical challenge; especially in the production process, how to achieve automation, improve product consistency, and reduce the risk of manual operation has become an important direction for the development of the industry.

[0003] Such as Figure 1 and Figure 2 show the composition states of the dressing patch and the external needle catheter. In the traditional production method, the production of the external needle catheter and the dressing patch usually relies on manual operations such as loading and unloading, assembly, and welding. This method not only has low efficiency but also is prone to human operation errors, affecting the stability and quality of the product. On the one hand, it is difficult for manual operation to maintain consistent operation accuracy, and on the other hand, the manual labor intensity is relatively large, which is prone to fatigue problems during the production process, thus having an adverse impact on the quality of the product. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a fully automatic external needle catheter melt head assembly device to achieve automated and streamlined assembly production of external needle catheters and dressing patches, effectively improving production efficiency and production quality.

[0005] Based on the above purpose, the present invention provides a fully automatic external needle catheter melt head assembly device for pressing an external needle catheter and a dressing patch. The melt head assembly device includes a material transfer mechanism, and a loading conveyor belt and an unloading conveyor belt arranged below the material transfer mechanism; The melt head assembly device further includes a loading wheel turntable, the loading wheel turntable has two loading platforms, and the positions of the two loading platforms can be alternated; The melt head assembly device further includes a pressing mechanism, and the material transfer mechanism and the pressing mechanism respectively correspond to the two loading platforms of the loading wheel turntable.

[0006] Preferably, the loading wheel turntable includes a first rotary cylinder, a connecting column is arranged at the output end of the first rotary cylinder, a tabletop frame is arranged at the top of the connecting column, and the tabletop frame is in a rectangular structure; The loading platforms are respectively arranged at both ends of the tabletop frame, and a ring cover body is wrapped below the tabletop frame.

[0007] Preferably, the material loading table includes a first connecting frame disposed on the tabletop frame. A bottom frame piece and a top frame piece are sequentially arranged on the top of the first connecting frame, and there is a gap for accommodating the patch between the bottom frame piece and the top frame piece. A slot for an external needle catheter to pass through is formed on the bottom frame piece, and a positioning groove corresponding to the shape of the top of the patch is formed on the top frame piece.

[0008] Preferably, a sliding table is arranged at the end of the material loading table, and the first connecting frame is fixedly installed on the slider of the first sliding table; The material loading wheel turntable further includes a double-axis cylinder for pushing the bottom of the first connecting frame.

[0009] Preferably, the pressing mechanism includes a first linear driver and a base disposed at the output end of the first linear driver; A bearing frame is arranged on the base. The pressing mechanism further includes a needle holder head and a rotary driver. The needle holder head is rotatably connected to the bearing frame through a connecting shaft, and a core needle is arranged at the bottom end of the needle holder head; The rotary driver is in transmission connection with the connecting shaft.

[0010] Preferably, the needle holder head includes a housing disposed at the bottom end of the connecting shaft. A head end is arranged at the bottom end of the housing, and the head end is in threaded connection with the housing; A shaft rod is slidably arranged inside the housing, and the core needle is arranged at the bottom end of the shaft rod; The bottom end of the head end has a sleeve, the bottom end of the core shaft is fixedly connected to the sleeve, and the core needle penetrates through the sleeve and is exposed outside the head end.

[0011] Preferably, a toothed groove is circumferentially arranged on the outer wall of the head end, a clamping frame is hinged on the outer wall of the housing, and a convex tooth capable of meshing with the toothed groove on the outer wall of the head end is arranged at the bottom end of the clamping frame; A spring is arranged between the top end of the clamping frame and the outer wall of the housing for pushing the convex tooth of the clamping frame to mesh with the toothed groove.

[0012] Preferably, the melting head assembly device further includes a second linear driver arranged below the pressing mechanism, and a support plate frame for supporting the bottom frame piece is arranged at the output end of the second linear driver.

[0013] Preferably, the material transfer mechanism includes a support frame, a second sliding table is arranged on the support frame, and a second connecting frame is slidably arranged on the second sliding table; A second rotary cylinder is arranged at the bottom of the second connecting frame, and a pen-shaped cylinder for pushing the second connecting frame to lift and lower is arranged on the support frame; The output end of the second rotary cylinder is provided with a first parallel finger cylinder, and second parallel finger cylinders are respectively arranged at two stations of the first parallel finger cylinder.

[0014] Beneficial effects of the present invention: 1. The present invention promotes the automation of the medical device production process by combining automatic loading and unloading with friction welding and hot pressing technology, effectively improving production efficiency, reducing manual operation errors, and ensuring consistency and accuracy in the production process; friction welding and hot pressing technology ensure high-strength connection and stability between the patch and the external needle catheter, improve the automation level of production, and provide a strong guarantee for product quality; 2. The pressing mechanism starts to work, and the first linear drive drives the needle holder head to descend through the base. The core needle on the needle holder head is inserted into the external needle catheter for positioning. The bottom end of the end sleeve of the needle holder head will press the patch and the tail end of the external needle catheter. The rotary drive starts to work. The rotary drive drives the connecting shaft and drives it. During the process of the connecting shaft driving the needle holder head to rotate, the end head generates high-speed rotation to produce friction welding on the contact point of the patch and the external needle catheter. The heat is generated by friction, which increases the temperature of the plastic contact surface and melts the plastic on the contact surface to form a semi-molten or completely melted plastic layer, and the end head applies pressure to promote the fusion of the molten plastic. After cooling, the molten plastic solidifies to form a high-strength connection.

[0015] 3. The length of the core needle can be adjusted. The shaft rod is driven down by pushing open the bracket and rotating the end, thereby making the core needle go down. The purpose of the bracket is to form a card-type fixation through the engagement of its convex teeth with the tooth grooves on the outer wall of the end. The purpose of the core needle is to position the external needle catheter and to prevent the fluid from entering the catheter during the hot melt process, causing blockage inside the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The combined state of the patch and the external needle is shown Figure 1 ; Figure 2 The combined state of the patch and the external needle is shown Figure 2 ; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the material transfer mechanism of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the material-carrying wheel turntable and the pressing mechanism of the present invention; Figure 6Schematic three-dimensional structure diagram of the material-carrying rotary table of the present invention; Figure 7 Schematic three-dimensional structure diagram of the pressing mechanism of the present invention; Figure 8 Partial structure schematic diagram of the pressing mechanism of the present invention; Figure 9 is Figure 8 Enlarged view of part A of

[0018] The reference numerals in the figure are: 1 - Loading conveyor belt; 2 - Unloading conveyor belt; 3 - Material transfer mechanism; 31 - Support frame; 32 - Second sliding table; 33 - Second connecting frame; 34 - Pen-shaped cylinder; 35 - Second rotary cylinder; 36 - First parallel finger cylinder; 37 - Second parallel finger cylinder; 4 - Material-carrying rotary table; 41 - Material-carrying table; 411 - First connecting frame; 412 - Bottom frame piece; 413 - Top frame piece; 414 - First sliding table; 42 - First rotary cylinder; 43 - Connecting column; 431 - Table surface frame; 44 - Ring cover body; 45 - Double-axis cylinder; 5 - Pressing mechanism; 51 - First linear driver; 52 - Base; 53 - Bearing frame; 54 - Needle head; 541 - Housing; 542 - End; 543 - Shaft rod; 544 - Bracket; 545 - Spring; 55 - Connecting shaft; 56 - Core needle; 57 - Rotary driver; 6 - Second linear driver; 61 - Support plate frame. Detailed implementation manners

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "include" or "comprise" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connect" or "be connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] In the first aspect of the present invention, a fully automatic external needle catheter melt head assembly device is proposed, as Figures 1 to 9As shown, a fully automatic external needle catheter melt head assembly device is used to press-fit an external needle catheter and a patch. The melt head assembly device includes a material transfer mechanism 3, a feeding conveyor belt 1 and a discharging conveyor belt 2 arranged below the material transfer mechanism 3; The melt head assembly device further includes a loading turntable 4 which has two loading platforms 41, and the positions of the two loading platforms 41 can be alternated; The melt head assembly device further includes a pressing mechanism 5, and the material transfer mechanism 3 and the pressing mechanism 5 respectively correspond to the two loading platforms 41 of the loading turntable 4.

[0022] The loading turntable 4 includes a first rotary cylinder 42. The output end of the first rotary cylinder 42 is provided with a connecting column 43. The top end of the connecting column 43 is provided with a table frame 431, and the table frame 431 is in a rectangular structure; The loading platforms 41 are respectively arranged at both ends of the table frame 431, and a ring cover 44 is wrapped and arranged below the table frame 431.

[0023] The loading platform 41 includes a first connecting frame 411 arranged on the table frame 431. A bottom frame piece 412 and a top frame piece 413 are sequentially arranged at the top of the first connecting frame 411. There is a gap for accommodating the patch between the bottom frame piece 412 and the top frame piece 413. A slot for the external needle catheter to pass through is opened on the bottom frame piece 412, and a positioning slot corresponding to the shape of the top of the patch is opened on the top frame piece 413.

[0024] A sliding table is arranged at the end of the loading platform 41, and the first connecting frame 411 is fixedly installed on the slider of the first sliding table 414; The loading turntable 4 further includes a double-axis cylinder 45 for pushing the bottom of the first connecting frame 411.

[0025] The pressing mechanism 5 includes a first linear driver 51 and a base 52 arranged at the output end of the first linear driver 51; A bearing frame 53 is arranged on the base 52. The pressing mechanism 5 further includes a needle head 54 and a rotary driver 57. The needle head 54 is rotatably connected to the bearing frame 53 through a connecting shaft 55, and a core needle 56 is arranged at the bottom end of the needle head 54; The rotary driver 57 is in transmission connection with the connecting shaft 55.

[0026] The needle head 54 includes a housing 541 arranged at the bottom end of the connecting shaft 55. A head 542 is arranged at the bottom end of the housing 541, and the head 542 is in threaded connection with the housing 541; A shaft rod 543 is slidably arranged inside the housing 541, and the core needle 56 is arranged at the bottom end of the shaft rod 543; The bottom end of the end head 542 has a sleeve, the bottom end of the mandrel is fixedly connected to the sleeve, and the core pin 56 penetrates through the sleeve and is exposed outside the end head 542.

[0027] The outer wall of the end head 542 is provided with tooth grooves around it, the outer wall of the housing 541 is hinged with a clamping frame 544, and the bottom end of the clamping frame 544 is provided with convex teeth that can be engaged with the tooth grooves on the outer wall of the end head 542; A spring 545 is arranged between the top end of the clamping frame 544 and the outer wall of the housing 541 for pushing the convex teeth of the clamping frame 544 to engage with the tooth grooves.

[0028] The fuse head assembly device further includes a second linear driver 6 arranged below the pressing mechanism 5, and a support plate frame 61 for supporting the bottom frame piece 412 is arranged at the output end of the second linear driver 6.

[0029] The material transfer mechanism 3 includes a support frame 31, a second sliding table 32 is arranged on the support frame 31, and a second connecting frame 33 is slidably arranged on the second sliding table 32; A second rotary cylinder 35 is arranged at the bottom of the second connecting frame 33, and a pen-shaped cylinder 34 for pushing the second connecting frame 33 to rise and fall is arranged on the support frame 31; The output end of the second rotary cylinder 35 is provided with a first parallel finger cylinder 36, and two working positions of the first parallel finger cylinder 36 are respectively provided with second parallel finger cylinders 37.

[0030] In this embodiment, the patch and the external needle catheter have been spliced before entering the process of this equipment. The patch and the external needle catheter combination are conveyed to the loading end of the material transfer mechanism 3 through the loading conveyor belt 1. The material transfer mechanism 3 starts to work. The pen-shaped cylinder 34 pushes the second connecting frame 33 to descend so that one of the second parallel finger cylinders 37 approaches the patch and the external needle catheter combination, and clamps and fixes it through two flat surfaces on the upper surface of the patch. Then the pen-shaped cylinder 34 drives the second parallel finger to rise and rotates 180 degrees in cooperation with the second rotary cylinder 35. The first parallel finger cylinder 36 controls the two second parallel finger cylinders 37 to move away from each other, and the second parallel finger cylinder 37 carrying the patch and the external needle catheter combination drives the load to be inserted between the bottom frame piece 412 and the top frame piece 413; The first rotary cylinder 42 of the loading turntable 4 drives the table frame 431 to rotate through a connecting rod, and the table frame 431 drives the patch and the external needle catheter combination to rotate above the support plate frame 61. The output end of the double-axis cylinder 45 extends and supports the bottom end of the first connecting frame 411. The second linear driver 6 is a lead screw slide or a pneumatic slide but is not limited thereto. The second linear driver 6 drives the support bracket to rise to support the bottom of the bottom frame piece 412; The pressing mechanism 5 starts to work. The first linear driver 51 is a lead screw slide or a pneumatic slide, but not limited thereto. The first linear driver 51 drives the needle holder head 54 to descend through the base 52. The core needle 56 on the needle holder head 54 penetrates into the external needle catheter for positioning. The end 542 of the needle holder head 54 presses against the bottom end of the sleeve to press the dressing patch and the tail end of the external needle catheter. The rotary driver 57 starts to operate. In this solution, the rotary driver 57 is a stepper motor. The stepper motor is drivingly connected to the connecting shaft 55 through a synchronous belt and a synchronous pulley and drives it. During the process that the connecting shaft 55 drives the needle holder head 54 to rotate, the end 542 rotates at a high speed to generate friction welding at the contact point between the dressing patch and the external needle catheter. Heat is generated through friction to raise the temperature of the plastic contact surface, melting the plastic on the contact surface, forming a semi-melted or completely melted plastic layer. And the end 542 applies pressure to promote the fusion of the melted plastic. At this time, the composition of the dressing patch and the external needle catheter is completed; The purpose of the core needle 56 is to position the external needle catheter and to prevent fluid from entering the catheter during the hot melting process, resulting in blockage inside the catheter. The length of the core needle 56 can be adjusted. By pushing aside the card holder 544 and rotating the end 542, the shaft rod 543 is driven to descend, thereby causing the core needle 56 to descend. The purpose of the card holder 544 is to form a clamping fixation through the engagement of its convex teeth with the tooth grooves on the outer wall of the end 542; Next, the second linear driver 6 drives the pallet rack 61 to descend. The output end of the double-axis cylinder 45 descends to stop supporting the first connecting frame 411. The first rotary cylinder 42 drives the combined dressing patch and external needle catheter to be displaced to the blanking conveyor belt 2. Finally, through the cooperation of the material transfer mechanism 3 and its second parallel finger cylinder 37, it is transferred to the blanking conveyor belt 2 and conveyed to the next process.

[0031] Those of ordinary skill in the art should understand that: The discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; Under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail.

[0032] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. Fully automatic external needle catheter melting head assembly equipment, used to press the external needle catheter and the patch, characterized in that: The melting head assembly equipment comprises a material transfer mechanism (3) and a loading conveyor belt (1) and a unloading conveyor belt (2) arranged below the material transfer mechanism (3); The melting head assembly equipment also includes a material loading wheel turntable (4), wherein the material loading wheel turntable (4) has two material loading platforms (41), and the positions of the two material loading platforms (41) can be alternated; The melting head assembly equipment also includes a pressing mechanism (5), and the material transfer mechanism (3) and the pressing mechanism (5) respectively correspond to two material loading platforms (41) of the material loading wheel turntable (4).

2. The fully automatic external needle catheter melting head assembly equipment according to claim 1, characterized in that: The material loading wheel turntable (4) comprises a first rotary cylinder (42), the output end of the first rotary cylinder (42) is provided with a connecting column (43), the top end of the connecting column (43) is provided with a table frame (431), and the table frame (431) is in a rectangular structure; The loading platform (41) is respectively arranged at two ends of the table frame (431), and a ring cover body (44) is arranged below the table frame (431).

3. The fully automatic external needle catheter melting head assembly equipment according to claim 2, characterized in that: The loading platform (41) comprises a first connecting frame (411) arranged on a table frame (431), a bottom frame piece (412) and a top frame piece (413) are arranged on the top of the first connecting frame (411) in sequence, and a gap for accommodating a patch is provided between the bottom frame piece (412) and the top frame piece (413), a slot for an external needle catheter to pass through is provided on the bottom frame piece (412), and a positioning slot corresponding to the shape of the top of the patch is provided on the top frame piece (413).

4. The fully automatic external needle catheter melting head assembly equipment according to claim 3, characterized in that: A slide is provided at the end of the loading platform (41), and the first connecting frame (411) is fixedly mounted on a slider of the first slide (414); The material loading wheel turntable (4) also includes a double-axis cylinder (45) for pushing the bottom of the first connecting frame (411).

5. The fully automatic external needle catheter melting head assembly equipment according to claim 1, characterized in that: The pressing mechanism (5) comprises a first linear drive (51) and a base (52) arranged at the output end of the first linear drive (51); A bearing frame (53) is arranged on the base (52), and the pressing mechanism (5) further comprises a needle frame head (54) and a rotary driver (57), wherein the needle frame head (54) is rotatably connected to the bearing frame (53) via a connecting shaft (55), and a core needle (56) is arranged at the bottom end of the needle frame head (54); The rotary driver (57) is drivingly connected to the connecting shaft (55).

6. The fully automatic external needle catheter melting head assembly equipment according to claim 5, characterized in that: The needle holder head (54) comprises a shell (541) arranged at the bottom end of the connecting shaft (55), a terminal (542) is arranged at the bottom end of the shell (541), and the terminal (542) is threadedly connected to the shell (541); A shaft rod (543) is slidably disposed inside the housing (541), and a core needle (56) is disposed at the bottom end of the shaft rod (543); The bottom end of the end head (542) has a sleeve, the bottom end of the core shaft is fixedly connected to the sleeve, and the core needle (56) passes through the sleeve and is exposed outside the end head (542).

7. The fully automatic external needle catheter melting head assembly equipment according to claim 6, characterized in that: The outer wall of the end head (542) is provided with tooth grooves around it, the outer wall of the housing (541) is hingedly provided with a bracket (544), and the bottom end of the bracket (544) is provided with protruding teeth that can mesh with the tooth grooves on the outer wall of the end head (542); A spring (545) is provided between the top end of the card frame (544) and the outer wall of the housing (541) for pushing the protruding teeth of the card frame (544) to engage with the tooth grooves.

8. The fully automatic external needle catheter melting head assembly equipment according to claim 3, characterized in that: The fusion head assembly device further comprises a second linear drive (6) arranged below the pressing mechanism (5), and an output end of the second linear drive (6) is provided with a support frame (61) for supporting a bottom frame sheet (412).

9. The fully automatic external needle catheter melting head assembly equipment according to claim 1, characterized in that: The material transfer mechanism (3) comprises a support frame (31), on which a second slide (32) and a second connecting frame (33) slidably arranged on the second slide (32) are arranged; A second rotary cylinder (35) is disposed at the bottom of the second connecting frame (33), and a pen-shaped cylinder (34) is disposed on the supporting frame (31) for driving the second connecting frame (33) to move upward or downward. The output end of the second rotary cylinder (35) is provided with a first parallel finger cylinder (36), and two workstations of the first parallel finger cylinder (36) are respectively provided with a second parallel finger cylinder (37).

Images