Automatic dispensing tool

Abstract

The utility model provides an automatic dispensing tool which is used for bonding a stay wire and a guide pipe and comprises a dispensing machine, a bracket and a driving mechanism, the bracket is provided with a limiting area used for limiting the positions of the wire pulling wire and the guide pipe. The driving mechanism is used for driving the dispensing machine and the limiting area to get close to each other or get away from each other, when the dispensing machine and the limiting area get close to each other, the dispensing machine can dispense glue on the stay wire and the guide pipe, and when the dispensing machine and the limiting area get away from each other, the dispensing machine or the bracket can avoid each other to move; the problems that an adjustable bent guide pipe is poor in quality and the adhesive dispensing efficiency of a stay wire is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing, in particular to an automatic glue dispensing tool. Background Art

[0002] In the field of medical devices, adjustable bend catheters typically utilize a pull wire bonded to the catheter, which is then stretched to achieve distal bending. During bonding, the wire and catheter must be kept relatively fixed. Existing technology still relies on manual bonding and fixing of the wire and catheter. However, manual bonding is unstable and inaccurate, resulting in the finished product exhibiting problems such as bent wire, unstable quality, and relatively low efficiency. Therefore, there is an urgent need for a dispensing tool that can achieve automation and improve dispensing accuracy and efficiency. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide an automatic dispensing tool, which aims to solve the problems of poor quality of adjustable curved conduits and low efficiency of wire dispensing.

[0004] The utility model provides an automatic glue dispensing tool for bonding a wire drawing and a catheter, comprising a glue dispensing machine, a bracket and a driving mechanism; the bracket is provided with a limiting area for limiting the positions of the wire drawing and the catheter; the driving mechanism is used to drive the glue dispensing machine and the limiting area to move closer to or farther away from each other, when the glue dispensing machine and the limiting area are close to each other, the glue dispensing machine can dispense glue on the wire drawing and the catheter, and when the glue dispensing machine and the limiting area are farther away from each other, the glue dispensing machine or the bracket can avoid each other's movement.

[0005] In one embodiment, the glue dispensing machine is arranged above the bracket, and the driving mechanism is used to drive the glue dispensing machine to rotate. As the glue dispensing machine rotates, the glue dispensing machine and the bracket approach or separate from each other.

[0006] In one embodiment, the bracket also includes a support seat and a support rod, the support seat is arranged on the periphery of the limiting area, and the support rod extends from the support seat into the limiting area and is connected to the dispensing machine for suspending the dispensing machine above the limiting area.

[0007] In one embodiment, the bracket is provided with a first slot in the limiting area, and the first slot is used to accommodate the pulling wire.

[0008] In one embodiment, the length direction of the first card slot is arranged parallel to the length direction of the support rod, and the driving mechanism is used to drive the dispensing machine to move along the length direction of the support rod, so that the dispensing machine dispenses glue in sequence along the length direction of the wire drawing.

[0009] In one embodiment, the driving mechanism includes a first driver and a second driver, the first driver is used to drive the dispensing machine and the limiting area to move closer to or away from each other, and the second driver is used to drive the dispensing machine to move along the support rod, and the first driver and the second driver drive the dispensing machine alternately.

[0010] In one embodiment, the first driver and the second driver are integrally configured as a stepper motor, and the stepper motor is configured to alternately perform linear driving and angular driving on the dispensing machine.

[0011] In one embodiment, the first slot is a through slot connecting two opposite sides of the bracket.

[0012] In one embodiment, the width of the first slot (44) is 0.15 mm to 0.5 mm.

[0013] In one embodiment, the bracket is provided with a second slot in the limiting area, and the second slot is used to accommodate the catheter.

[0014] The automatic dispensing tool provided by the utility model can avoid the quality instability problem and batch difference of the adjustable curved conduit after manual dispensing and bonding by confining the wire drawing and the conduit within the limit area. After the position and shape of the wire drawing and the conduit are limited, the dispensing machine or the bracket is driven to move or rotate by the driving mechanism, so that the dispensing machine and the limit area are moved toward or away from the limit area in strict accordance with the preset path, speed and time, and the dispensing machine can perform the dispensing action when it is close enough to the wire drawing and the conduit. After the dispensing is completed, the driving mechanism drives the dispensing machine or drives the bracket away from each other, so as to facilitate the resetting of the dispensing machine or the bracket or the execution of the next task. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic dispensing tooling in the embodiment of the utility model.

[0017] Figure numerals: 10, pull wire; 20, catheter; 30, dispensing machine; 40, bracket; 41, limit area; 42, support seat; 43, support rod; 44, first slot; 45, second slot; 50, driving mechanism. DETAILED DESCRIPTION

[0018] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0019] In the description of this utility model, unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0020] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0021] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature and do not indicate or imply relative importance or a particular order.

[0022] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0023] Please refer to Figure 1 An embodiment of the present invention provides an automatic dispensing tool for bonding the wire drawing 10 and the catheter 20, including a dispensing machine 30, a bracket 40 and a driving mechanism 50; the bracket 40 is provided with a limiting area 41 for limiting the position of the wire drawing 10 and the catheter 20; the driving mechanism 50 is used to drive the dispensing machine 30 and the limiting area 41 to move closer to or away from each other. When the dispensing machine 30 and the limiting area 41 are close to each other, the dispensing machine 30 can dispense glue on the wire drawing 10 and the catheter 20. When the dispensing machine 30 and the limiting area 41 are away from each other, the dispensing machine 30 or the bracket 40 can avoid each other's movement.

[0024] Specifically, the pull wire 10 and the catheter 20 are first placed in the limiting area 41 of the bracket 40 by an automatic loading mechanism or manually to limit their positions. The specific method of limiting can be to clamp the pull wire 10 and the catheter 20 by making grooves in the limiting area 41, or to fix the pull wire 10 and the catheter 20 in the limiting area 41 by setting a pressing, clamping or other fixing mechanism, or to ensure that the pull wire 10 and the catheter 20 do not move relative to each other on the bracket 40 after loading, thereby avoiding adverse consequences such as offset of the glue spot position, insufficient glue attached to the pull wire 10 and the catheter 20 due to deformation, and deformation of the pull wire 10, thereby affecting the overall quality of the adjustable bend catheter. Secondly, the driving mechanism 50 drives the glue dispenser 30 and the limiting area 41 to move closer to or farther away from each other, which can replace the purely manual bonding method. When the driving mechanism 50 drives the glue dispenser 30 and the limiting area 41 to move closer to each other, until the glue dispenser 30 contacts the pull wire 10 and the catheter 20 in the limiting area 41, or approaches the gap between the pull wire 10 and the catheter 20 to a preset appropriate distance, the glue dispenser 30 automatically releases the adhesive to the preset bonding point of the pull wire 10 and the catheter 20. After the glue dispensing is completed, the driving mechanism 50 drives the glue dispenser 30 to leave the glue dispensing position, so that the glue dispenser 30 or the bracket 40 can move separately without blocking each other. The glue dispensing is completed by the driving mechanism 50, avoiding the quality unevenness problem of manual glue dispensing and bonding, ensuring the quality stability of the adjustable bend catheter, saving manpower, and improving the controllability of the glue dispensing operation.

[0025] Furthermore, the driving mechanism 50 can act on the dispensing machine 30, that is, the bracket 40 is fixed in the external environment, and the driving mechanism 50 drives the dispensing machine 30 to approach or move away from the limiting area 41; in other embodiments, the driving mechanism 50 can also act on the bracket 40, that is, the dispensing machine 30 is fixed in the external environment, and the driving mechanism 50 drives the bracket 40 or the limiting area 41 on the bracket 40 to approach or move away from the glue outlet nozzle of the dispensing machine 30.

[0026] In yet another embodiment, the glue dispenser 30 can be hinged to the bracket 40, and the driving mechanism 50 drives the glue dispenser 30 or drives the glue dispenser 30 and the bracket 40 at the same time, so that the glue nozzle of the glue dispenser 30 is close to the bonding point of the pull wire 10 and the catheter 20 on the limit area 41 to complete the glue dispensing, or the glue nozzle of the glue dispenser 30 is moved away from the limit area 41 to reset the glue dispenser 30 and the bracket 40. More specifically, the glue dispenser 30 and the bracket 40 can be reset by reverse driving of the driving mechanism 50, or by adding a reset spring at the hinge point of the glue dispenser 30 and the bracket 40. After the driving mechanism 50 is released, the glue dispenser 30 and the bracket 40 return to the zero position through the reset spring.

[0027] In this embodiment, the glue dispenser 30 is disposed above the bracket 40 , and the driving mechanism 50 is used to drive the glue dispenser 30 to rotate. As the glue dispenser 30 rotates, the glue dispenser 30 and the bracket 40 move closer to or away from each other.

[0028] Specifically, the glue dispenser 30 can be suspended above the bracket 40 through an auxiliary frame. The glue dispenser 30 has a zero position and a working position. The zero position specifically refers to the position of the glue dispenser 30 before it rotates, and the working position is the position of the glue dispenser 30 when it performs the glue dispensing process on the wire drawing wire 10 and the catheter 20. As the driving mechanism 50 rotates, the glue dispenser 30 is successively located at the zero position and the working position. When the glue dispenser 30 and the bracket 40 approach each other, the glue dispenser 30 switches from the zero position to the working position. When the glue dispenser 30 and the bracket 40 move away from each other, the glue dispenser 30 switches from the working position to the zero position. Compared with the bracket 40, the driving mechanism 50 driving the glue dispenser 30 to rotate is more conducive to maintaining the position of the wire drawing wire 10 and the catheter 20, and the glue dispenser 30 is lighter in weight and the driving process is simple and convenient.

[0029] In other embodiments, the driving mechanism 50 can also drive the dispensing machine 30 to rotate in a plane parallel to the horizontal direction, or in a plane perpendicular to the horizontal direction.

[0030] In yet another embodiment, the glue dispenser 30 may also be provided on the drive mechanism 50. In this case, the drive mechanism 50 may be fixed in an environment other than the bracket 40, or may be fixed in an area of ​​the bracket 40 other than the limiting area 41. The drive mechanism 50 may be directly connected to the glue dispenser 30 and drive the glue dispenser 30 to rotate about the connection. Furthermore, the drive mechanism 50 may have a connecting shaft that can rotate about its own axis, and the glue dispenser 30 is connected to the connecting shaft so that the glue dispenser 30 can rotate about the axis of the connecting shaft.

[0031] In this embodiment, the bracket 40 also includes a support seat 42 and a support rod 43. The support seat 42 is arranged on the periphery of the limiting area 41. The support rod 43 extends from the support seat 42 into the limiting area 41 and is connected to the dispensing machine 30 for suspending the dispensing machine 30 above the limiting area 41.

[0032] Specifically, the support base 42 and support rod 43 integrate the glue dispenser 30 into the bracket 40, improving the integrity of the automatic glue dispensing tooling. When necessary, the automatic glue dispensing tooling can be moved arbitrarily without the need for a dedicated area to fix the automatic glue dispensing tooling, thereby improving the flexibility of installation and use. The glue dispenser 30 can be fixed relative to the support rod 43, in which case the drive mechanism 50 rotates the glue dispenser 30 by driving the support rod 43 to rotate. The glue dispenser 30 can also be rotatably connected to the support rod 43, in which case the drive mechanism 50 directly drives the glue dispenser 30 to rotate about the support rod 43.

[0033] In this embodiment, the bracket 40 is provided with a first slot 44 in the limiting area 41 , and the first slot 44 is used to accommodate the pulling wire 10 .

[0034] Specifically, loading the pull wire 10 into the first clamping groove 44 can limit the position and shape of the pull wire 10, preventing the pull wire 10 from being bent or bent before the glue is applied, which would lead to unstable quality of the adjustable bend catheter. At the same time, the catheter 20 can be fixed to the side adjacent to the pull wire 10 by means of a clamp or a groove.

[0035] Preferably, the bracket 40 is provided with a second slot 45 within the limiting region 41, and the second slot 45 is used to accommodate the catheter 20. The first slot 44 and the second slot 45 are arranged in parallel. According to the current conventional design of the catheter 20 shape, the first slot 44 and the second slot 45 are both straight lines. However, it is not ruled out that some catheters 20 with special functions may need to be designed with an arc structure or a bent structure. The shape, width, and length of the first slot 44 and the second slot 45 can be adjusted according to the actual shape of the adjustable bend catheter.

[0036] Furthermore, according to the general outer diameter of the catheter 20 being 4mm-12mm and the outer diameter of the pull wire 10 being 0.1mm-0.4mm, the first slot 44 is designed to be loosely fitted with the pull wire 10, and the slot width of the first slot 44 is specifically 0.15mm-0.5mm. The second slot 45 is designed to be loosely fitted with the catheter 20, and the slot width of the second slot 45 is specifically 3.8mm-12.6mm, which is intended to facilitate the removal and placement of the pull wire 10 and the catheter 20 without affecting the limiting effect of the first slot 44 and the second slot 45.

[0037] In other embodiments, the pull wire 10 may also be fixed in the limiting area 41 by being clamped.

[0038] In this embodiment, the length direction of the first slot 44 is set parallel to the length direction of the support rod 43, and the driving mechanism 50 is used to drive the dispensing machine 30 to move along the length direction of the support rod 43. Specifically, the driving mechanism 50 drives the dispensing machine 30 to move by driving the support rod 43, so that the dispensing machine 30 dispenses glue in sequence along the length direction of the wire drawing wire 10.

[0039] Specifically, in order to improve the stability of bonding, multiple bonding points can be set along the length direction of the pull wire 10 and the catheter 20. Since the direction of the support rod 43 is along the direction of the first card slot 44, the glue dispenser 30 can be moved along the direction of the support rod 43 to dispense glue and bond along the direction of the pull wire 10 and the catheter 20, ensuring that multiple bonding points are evenly arranged in the length direction, so that the pull wire 10 can transmit force more regularly when adjusting the curvature of the catheter 20, which is beneficial to the operation of the operation.

[0040] In this embodiment, the driving mechanism 50 includes a first driver and a second driver. The first driver is used to drive the dispensing machine 30 and the limiting area 41 to move closer to or away from each other, and the second driver is used to drive the dispensing machine 30 to move along the support rod 43. The first driver and the second driver drive the dispensing machine 30 alternately.

[0041] Specifically, the first driver may be a motor, and the second driver may be a linear axis, a cylinder, or the like.

[0042] In this embodiment, the first driver and the second driver are integrally configured as a stepper motor, and the stepper motor is configured to alternately perform linear driving and angular driving on the dispensing machine 30 .

[0043] Specifically, the biggest difference between stepper motors and other control-oriented motors is their ability to receive digital control signals, namely electrical pulse signals, and convert them into corresponding angular or linear displacements. Before performing pulse signal conversion, stepper motors can be programmed with input signal parameters that specify a specific position increment. This so-called incremental position control system significantly reduces costs compared to traditional DC control systems, requiring virtually no system adjustments. The angular displacement of a stepper motor is strictly proportional to the number of input pulses and is synchronized with them in time. Therefore, simply controlling the number and frequency of pulses and the phase sequence of the motor windings can achieve the desired rotation angle, speed, and direction. The displacement, speed, and deflection of the dispenser 30 can be set according to actual needs. Because the stepper motor is program-controlled, precise rotation of the dispenser 30 and the precise movement of the support rod 43 and the dispenser 30 can be achieved. Precise program control ensures that the dispenser 30 moves precisely to the designated position for each dispensing operation. This precise control system not only improves dispensing accuracy but also ensures the stability and consistency of the dispensing process. Furthermore, because the stepper motor can operate according to the set path and dispensing volume, the dispensing path and dispensing volume can be flexibly set according to the needs of different catheters and wires by simply adjusting the program parameters. This adapts to dispensing operations with different specifications and requirements, and has great versatility and flexibility.

[0044] Furthermore, the single linear displacement of the dispensing machine 30 can be set to 5-30mm, and then a rotation is performed to dispense glue, and then the next linear displacement is performed, and this cycle is repeated until the last dispensing is completed, and the stepper motor drives the dispensing machine 30 back to the original zero position.

[0045] In this embodiment, the first slot 44 is a through slot connecting two opposite sides of the bracket 40 .

[0046] Specifically, the catheter 20 has various specifications, and the first slot 44 in the form of a through slot can accommodate pull wires 10 of various lengths, and has good versatility.

[0047] The automatic dispensing tooling provided in this embodiment confines the wire drawing 10 and the catheter 20 within the limiting area 41, thereby avoiding the quality instability problem and batch difference of the adjustable curved catheter after manual dispensing and bonding. After the position and shape of the wire drawing 10 and the catheter 20 are limited, the driving mechanism 50 drives the dispensing machine 30 or the bracket 40 to move or rotate, so that the dispensing machine 30 and the limiting area 41 strictly approach or move away from the limiting area 41 according to the preset path, speed and time, and can enable the dispensing machine 30 to perform dispensing when it is close enough to the wire drawing 10 and the catheter 20. After the dispensing is completed, the driving mechanism 50 drives the dispensing machine 30 or drives the bracket 40 away from each other, so as to facilitate the resetting of the dispensing machine 30 or the bracket 40 or the execution of the next task.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention are intended to be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An automatic dispensing tool for bonding a wire (10) and a catheter (20), characterized in that: include: Glue dispenser (30); A bracket (40), wherein the bracket (40) is provided with a limiting area (41) for limiting the positions of the pull wire (10) and the catheter (20); A driving mechanism (50) is used to drive the glue dispenser (30) and the limiting area (41) to move closer to or farther away from each other. When the glue dispenser (30) and the limiting area (41) are closer to each other, the glue dispenser (30) can dispense glue on the wire drawing wire (10) and the catheter (20). When the glue dispenser (30) and the limiting area (41) are farther away from each other, the glue dispenser (30) or the bracket (40) can avoid each other's movement.

2. The automatic dispensing tool as claimed in claim 1, characterized in that: The glue dispenser (30) is arranged above the bracket (40), and the driving mechanism (50) is used to drive the glue dispenser (30) to rotate. As the glue dispenser (30) rotates, the glue dispenser (30) and the bracket (40) approach or separate from each other.

3. The automatic dispensing tool as claimed in claim 1, characterized in that: The bracket (40) further includes a support seat (42) and a support rod (43), wherein the support seat (42) is arranged on the periphery of the limiting area (41), and the support rod (43) extends from the support seat (42) into the limiting area (41) and is connected to the dispensing machine (30) for suspending the dispensing machine (30) above the limiting area (41).

4. The automatic dispensing tool as claimed in claim 3, characterized in that: The bracket (40) is provided with a first slot (44) in the limiting area (41), and the first slot (44) is used to accommodate the pulling wire (10).

5. The automatic dispensing tool as claimed in claim 4, characterized in that: The length direction of the first slot (44) is arranged in parallel with the length direction of the support rod (43), and the driving mechanism (50) is used to drive the glue dispenser (30) to move along the length direction of the support rod (43), so that the glue dispenser (30) dispenses glue in sequence along the length direction of the wire drawing wire (10).

6. The automatic dispensing tool as claimed in claim 5, characterized in that: The driving mechanism (50) includes a first driver and a second driver, wherein the first driver is used to drive the dispensing machine (30) and the limiting area (41) to move closer to or farther away from each other, and the second driver is used to drive the dispensing machine (30) to move along the support rod (43), and the first driver and the second driver drive the dispensing machine (30) alternately.

7. The automatic dispensing tool as claimed in claim 6, characterized in that: The first driver and the second driver are integrally configured as a stepping motor, and the stepping motor is configured to alternately perform linear driving and angular driving on the glue dispenser (30).

8. The automatic dispensing tool as claimed in claim 4, characterized in that: The first slot (44) is a through slot communicating with two opposite sides of the bracket (40).

9. The automatic dispensing tool as claimed in claim 4, characterized in that: The first slot (44) has a slot width of 0.15 mm to 0.5 mm.

10. The automatic dispensing tool as claimed in claim 3, characterized in that: The bracket (40) is provided with a second slot (45) in the limiting area (41), and the second slot (45) is used to accommodate the catheter (20).

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