Spring-embedded silicone tube processing equipment and processing method

Abstract

The application discloses a built-in spring silica gel pipe processing device and a processing method, and belongs to the technical field of medical silica gel pipes. The device comprises a fixing mechanism, a forming part, a glue injection part and a stretching mechanism. The fixing mechanism comprises a fixing frame and a fixing plate. The fixing plate is fixedly connected with the lower half of the fixing frame. The forming part is vertically arranged on the fixing plate and is used for forming the built-in spring silica gel pipe. The glue injection part is connected with the fixing plate and is used for injecting glue into the inner cavity of the forming part. The stretching mechanism comprises oppositely arranged first and second stretching components. The first and second stretching components are arranged on the upper and lower sides of the forming part respectively. The application uses a spring with a small length in a pre-pressed state, is convenient to install, greatly shortens the installation time, and is height-adjustable. A set of equipment can process built-in spring silica gel pipes of various specifications, and production cost is effectively saved.

Description

Technical Field

[0001] This invention belongs to the field of medical silicone tube technology, specifically relating to a processing equipment and method for silicone tubes with built-in springs. Background Technology

[0002] Medical silicone tubing often bends during use, which can easily lead to closure of the tubing lumen and prevent it from maintaining patency. This problem can be solved by increasing the support of the tubing, and one method is to use silicone tubing with an internal spring. Typically, silicone tubing with an internal spring is made by first extruding a section of silicone tubing, then installing the spring onto the outer diameter of the silicone tubing, and finally injection molding. However, this method is difficult and time-consuming to install the spring, and the injection molding usually requires the creation of a mold, which cannot be adjusted according to needs, resulting in wasted costs. Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solution:

[0004] A processing device for silicone tubes with built-in springs, comprising:

[0005] A fixing mechanism, comprising a fixing frame and a fixing plate; the fixing plate is fixedly connected to the lower half of the fixing frame;

[0006] A molding section, which is vertically disposed on the fixed plate, is used for molding a silicone tube with an internal spring.

[0007] The glue injection section is connected to the fixing plate and is used to inject glue into the inner cavity of the molding section.

[0008] The stretching mechanism includes a first stretching component and a second stretching component arranged opposite to each other; the first stretching component and the second stretching component are respectively arranged on the upper and lower sides of the forming part.

[0009] Furthermore, the lower half of the fixing frame is provided with a first fixing plate, a second fixing plate and a third fixing plate at intervals from top to bottom, and the first fixing plate, the second fixing plate and the third fixing plate are connected by fixing columns; wherein, the second tensioning component is located on the third fixing plate.

[0010] Furthermore, fastening bushings are provided at the connection points between the first fixing plate, the second fixing plate, the third fixing plate and the fixing column.

[0011] Furthermore, the molding part includes a silicone tube extending vertically through both ends; one end of the silicone tube is detachably connected to the first fixing plate, and the other end of the silicone tube is detachably connected to the second fixing plate; fasteners are provided at the connection points between the silicone tube and the first fixing plate and the second fixing plate, and the fasteners are interference-fitted with the silicone tube.

[0012] Furthermore, the injection part includes a syringe, one end of which is rotatably connected to the side of the first fixing plate away from the second fixing plate via a rotating shaft. The syringe is provided with an injection port located directly above the silicone tube. A steel ball is placed in the injection port, and the steel ball slides along the inner cavity of the silicone tube along with the liquid silicone rubber during injection.

[0013] Furthermore, a first magnet is provided at the end of the syringe away from the rotation axis, and a second magnet is provided on the first fixing plate; the first magnet and the second magnet cooperate with each other to ensure that the injection port can quickly return to the position directly above the silicone tube when the syringe is rotated.

[0014] Further, the first stretching assembly includes a rack, a slider, and a first cylinder gripper; the fixing frame is provided with a slide rail, and the slider is slidably connected to the slide rail; one end of the rack is fixedly connected to the slider; the first cylinder gripper is connected to the end of the rack away from the slider and is located directly above the silicone tube; the fixing frame is provided with a rotary motor, and the drive end of the rotary motor is connected to a gear via a key pin; the gear and the rack cooperate with each other; the rotary motor drives the gear to rotate, and the gear drives the rack to move up and down, so as to move the first cylinder gripper closer to or away from the silicone tube;

[0015] The second stretching assembly includes a second cylinder gripper; the second cylinder gripper is fixedly mounted on the third fixing plate and located directly below the silicone tube.

[0016] Furthermore, there are two first tensioning components, which are arranged opposite to each other on both sides of the gear, and the gear drives the racks on both sides to move up and down in opposite directions respectively.

[0017] There are two silicone tubes, which are respectively disposed on the first fixing plate and the second fixing plate, and are respectively disposed corresponding to the two first tensioning components;

[0018] There are two syringes, which are respectively disposed on the side of the first fixing plate away from the second fixing plate, and the injection port of each syringe is respectively disposed corresponding to the two silicone tubes;

[0019] There are two second stretching components, which are respectively disposed on the third fixing plate and respectively correspond to the two silicone tubes.

[0020] Furthermore, the third fixing plate is provided with an adhesive storage groove on the side close to the second fixing plate. The adhesive storage groove is located around the second cylinder claw and is correspondingly arranged with the silicone tube.

[0021] The processing method of the built-in spring silicone tube processing equipment includes the following steps:

[0022] Install the silicone tube inserted into the pre-compressed spring into the fastener of the fixed plate, and control the second cylinder claw to grab the lower end of the spring; the rotary motor rotates, the gear drives the rack downward, and stops when it reaches the position that the first cylinder claw can grab, and controls the first cylinder claw to grab the upper end of the spring; the rotary motor rotates in the opposite direction, the gear drives the rack upward, and pulls the spring up into a stretched state;

[0023] After the rack moves up a certain distance, control the second cylinder gripper to release the bottom of the spring; the spring continues to move up a certain distance due to the tension, and after the spring is centered, control the first cylinder gripper to release the top of the spring; the rack continues to move up until the silicone tube is removed, and then press the shut-off button to stop the rotary motor;

[0024] Move the syringe, and the first and second magnets attract each other, so that the injection port is directly above the silicone tube; inject the slow-flowing liquid silicone rubber from the injection port, so that it enters the inner wall of the silicone tube; put a steel ball into the injection port and let it fall vertically; the slow-flowing liquid silicone rubber slowly wraps the entire tube under the action of the steel ball.

[0025] After curing for a period of time, the silicone tube is removed and placed in a vulcanization device for secondary shaping. Then, the excess part is trimmed off to complete the production of the silicone tube with the built-in spring.

[0026] Beneficial effects:

[0027] This invention provides a processing equipment and method for silicone tubes with built-in springs. It uses a short spring in a pre-compressed state, which is easy to install and greatly shortens the installation time. The height is also adjustable, and one set of equipment can process silicone tubes with built-in springs of various specifications, effectively saving production costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a silicone tube processing device with built-in spring according to the present invention;

[0029] Figure 2 This is a schematic diagram of the slider structure of the present invention;

[0030] Figure 3This is a schematic diagram of the fastener structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the syringe of the present invention;

[0032] Figure 5 This is a schematic diagram of the controller of the present invention;

[0033] Among them, 1-1, fixing frame; 1-2, first fixing plate; 1-3, second fixing plate; 1-4, third fixing plate; 1-5, fixing column; 1-6, fastening bushing; 2-1, first cylinder gripper; 2-2, rack; 2-3, slide rail; 2-4, slider; 2-5, second cylinder gripper; 3-1, rotary motor; 3-2, key pin; 3-3, gear; 4-1, silicone tube; 4-2, fastener; 5-1, spring; 6-1, rotating shaft; 6-2. Syringe; 6-3. Injection port; 6-4. First magnet; 6-5. Second magnet; 7-1. Left first cylinder gripper open / close button; 7-2. Left second cylinder gripper open / close button; 7-3. Right second cylinder gripper open / close button; 7-4. Right first cylinder gripper open / close button; 7-5. Rotary motor reverse start / pause button; 7-6. Rotary motor forward start / pause button; 7-7. Emergency stop button. Detailed Implementation

[0034] Example 1

[0035] refer to Figure 1-5 A processing device and method for a silicone tube with an internal spring, comprising:

[0036] The fixing mechanism includes a fixing frame 1-1 and a fixing plate; the fixing plate is fixedly connected to the lower half of the fixing frame 1-1.

[0037] The molding section is vertically mounted on the fixed plate and is used for molding the built-in spring silicone tube;

[0038] The glue injection section is connected to the fixing plate and is used to inject glue into the inner cavity of the molding section.

[0039] The stretching mechanism includes a first stretching component and a second stretching component arranged opposite to each other; the first stretching component and the second stretching component are respectively arranged on the upper and lower sides of the forming part.

[0040] Preferably, the lower half of the fixing frame 1-1 is provided with a first fixing plate 1-2, a second fixing plate 1-3 and a third fixing plate 1-4 at intervals from top to bottom, and the first fixing plate 1-2, the second fixing plate 1-3 and the third fixing plate 1-4 are connected by fixing posts 1-5; wherein, the second tensioning component is located on the third fixing plate 1-4.

[0041] In this embodiment, fastening bushings are provided at the connection points between the first fixing plate 1-2, the second fixing plate 1-3, the third fixing plate 1-4 and the fixing column; the fastening bushings are interference-fitted with the fixing column and connected by screws.

[0042] Preferably, the molding part includes a silicone tube 4-1 that extends vertically through both ends; one end of the silicone tube 4-1 is detachably connected to the first fixing plate 1-2, and the other end of the silicone tube 4-1 is detachably connected to the second fixing plate 1-3; fasteners 4-2 are provided at the connection points between the silicone tube 4-1 and the first fixing plate 1-2 and the second fixing plate 1-3, and the fasteners 4-2 are interference-fitted with the silicone tube 4-1.

[0043] In this embodiment, fastener 4-2 is fixed to the first fixing plate 1-2 and the second fixing plate 1-3 through bolt holes on the side of the first fixing plate 1-2 and the second fixing plate 1-3 near the third fixing plate 1-4. The inner wall surface of fastener 4-2 has a rough texture to enhance the friction between fastener 4-2 and silicone tube 4-1. The perpendicularity of silicone tube 4-1 is ensured by setting the first fixing plate 1-2 and the second fixing plate 1-3.

[0044] Preferably, the injection part includes a syringe 6-2, one end of which is connected to the side of the first fixing plate 1-2 away from the second fixing plate 1-3 via a rotating shaft 6-1. A bearing is provided at the connection between the syringe 6-2 and the rotating shaft 6-1. The syringe 6-2 is provided with an injection port 6-3, which is located directly above the silicone tube 4-1. A steel ball is placed in the injection port 6-3, and the steel ball slides along the inner cavity of the silicone tube along with the liquid silicone rubber during injection.

[0045] In this embodiment, the injection port 6-3 is provided with an opening, which is a conical structure and corresponds to the position of the silicone tube 4-1.

[0046] Preferably, a first magnet 6-4 is provided at the end of the syringe 6-2 away from the rotation axis 6-1, and a second magnet 6-5 is provided on the first fixing plate 1-2; the first magnet 6-4 and the second magnet 6-5 cooperate with each other to enable the injection port 6-3 to quickly return to the position directly above the silicone tube 4-1 when the syringe 6-2 is rotated.

[0047] In this embodiment, when the syringe 6-2 is rotated 180 degrees, the syringe 6-2 is away from the top of the silicone tube 4-1, and the first magnet 6-4 and the second magnet 6-5 repel each other. When it is necessary to coat the inner wall of the silicone tube 4-1 and the spring with rubber, the syringe 6-2 is rotated so that the first magnet 6-4 rotates to the position corresponding to the second magnet 6-5. At this time, the first magnet 6-4 and the second magnet 6-5 attract each other, keeping the syringe 6-2 horizontal.

[0048] Preferably, the first stretching assembly includes a rack 2-2, a slider 2-4, and a first cylinder gripper 2-1; the fixing frame 1-1 is provided with a slide rail 2-3, and the slider 2-4 is slidably connected to the slide rail 2-3; one end of the rack 2-2 is fixedly connected to the slider 2-4; the first cylinder gripper 2-1 is connected to the end of the rack 2-2 away from the slider 2-4 and is located directly above the silicone tube 4-1; the fixing frame 1-1 is provided with a rotary motor 3-1, and the drive end of the rotary motor 3-1 is connected to a gear 3-3 through a key pin 3-2; the gear 3-3 and the rack 2-2 cooperate with each other; the rotary motor 3-1 drives the gear 3-3 to rotate, and the gear 3-3 drives the rack 2-2 to move up and down, so as to move the first cylinder gripper 2-1 closer to or away from the silicone tube 4-1.

[0049] In this embodiment, the rack 2-2 is welded to the slider 2-4. The end of the slider 2-4 near the slide rail 2-4 has a T-shaped structure for limiting and ensuring balance. Lubricating oil can be applied inside the slide rail 2-4 for easy operation. An oil plug is provided on one side of the slide rail 2-4. When changing the lubricating oil, the oil plug is removed to drain the waste oil. The slider 2-4 is a cylinder design and can be connected to an external air inlet / outlet pipe. By controlling the air source, the opening and closing state of the first cylinder gripper 2-1 is changed. When air is inlet, the first cylinder gripper 2-1 is open; when air is outlet, it is closed. The first cylinder gripper is existing technology and will not be described in detail.

[0050] The second stretching assembly includes a second cylinder gripper 2-5; the second cylinder gripper 2-5 is fixedly mounted on the third fixing plate 1-4 and is located directly below the silicone tube.

[0051] In this embodiment, the third fixing plate 1-4 is connected to an external air inlet / outlet pipe. By controlling the air source to enter and exit, the opening and closing state of the second cylinder claw 2-5 is changed by the air source. The second cylinder claw 2-5 is existing technology and will not be described in detail.

[0052] Preferably, there are two first tensioning components, which are arranged opposite to each other on both sides of the gear 3-3. The gear 3-3 drives the racks 2-2 on both sides to move up and down in opposite directions.

[0053] There are two silicone tubes 4-1. The two silicone tubes 4-1 are respectively set on the first fixing plate 1-2 and the second fixing plate 1-2, and are respectively set with the two first tension components.

[0054] There are two syringes 6-2. The two syringes 6-2 are respectively set on the side of the first fixing plate 1-2 away from the second fixing plate 1-2. The injection port 6-3 of the syringe 6-2 is respectively set with two silicone tubes 4-1.

[0055] There are two second tensioning components, which are respectively set on the third fixing plate 1-4 and respectively corresponding to the two silicone tubes 4-1.

[0056] Preferably, the third fixing plate 1-4 is provided with a glue storage groove on the side close to the second fixing plate 1-3. The glue storage groove is located around the second cylinder claw 2-5 and is correspondingly provided with the silicone tube 4-1.

[0057] In this embodiment, in addition to the built-in spring silicone tube processing equipment, a controller is also provided to operate the switches and jaw switches of this equipment. The controller is equipped with a left first cylinder jaw open / close button 7-1, a left second cylinder jaw open / close button 7-2, a right second cylinder jaw open / close button 7-3, a right first cylinder jaw open / close button 7-4, a rotary motor reverse start / pause button 7-5, a rotary motor forward start / pause button 7-6, and an emergency stop button 7-7. The rotary motor reverse start / pause button 7-5 and the rotary motor forward start / pause button 7-6 are used to control the operation of the rotary motor. The emergency stop button 7-7 is used to stop all actions of the equipment in abnormal situations. The left first cylinder jaw open / close button 7-1, the left second cylinder jaw open / close button 7-2, the right second cylinder jaw open / close button 7-3, and the left first cylinder jaw open / close button 7-4 are used to control the air supply to open / close the jaws.

[0058] In addition to the built-in spring silicone tube processing equipment, this embodiment also includes heating lamps, which are located around the built-in spring silicone tube processing equipment and can perform preliminary curing of liquid silicone rubber.

[0059] Example 2

[0060] Processing method for processing equipment with built-in spring silicone tubes:

[0061] Install the silicone tube inserted into the pre-compressed spring into the fastener of the fixed plate, and control the second cylinder claw to grab the lower end of the spring; the rotary motor rotates, the gear drives the rack downward, and stops when it reaches the position that the first cylinder claw can grab, and controls the first cylinder claw to grab the upper end of the spring; the rotary motor rotates in the opposite direction, the gear drives the rack upward, and pulls the spring up into a stretched state;

[0062] After the rack moves up a certain distance, control the second cylinder gripper to release the bottom of the spring; the spring continues to move up a certain distance due to the tension, and after the spring is centered, control the first cylinder gripper to release the top of the spring; the rack continues to move up until the silicone tube is removed, and then press the shut-off button to stop the rotary motor;

[0063] Move the syringe, and the first and second magnets attract each other, so that the injection port is directly above the silicone tube; inject the slow-flowing liquid silicone rubber from the injection port, so that it enters the inner wall of the silicone tube; put a steel ball into the injection port and let it fall vertically; the slow-flowing liquid silicone rubber slowly wraps the entire tube under the action of the steel ball.

[0064] After initial curing by surrounding heating lamps for 3-5 minutes, the silicone tube can be removed and placed in a vulcanizing device for secondary shaping. Then, the excess part is trimmed off to complete the production of the silicone tube with the built-in spring.

[0065] In this embodiment, the diameter of the steel ball is smaller than the diameter of the spring, and is less than or equal to the inner diameter of the tube after the coating is completed.

[0066] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A processing device for silicone tubes with built-in springs, characterized in that, include: A fixing mechanism, comprising a fixing frame and a fixing plate; the fixing plate is fixedly connected to the lower half of the fixing frame; A molding section, which is vertically disposed on the fixed plate, is used for molding a silicone tube with an internal spring. The glue injection section is connected to the fixing plate and is used to inject glue into the inner cavity of the molding section. A stretching mechanism, comprising a first stretching component and a second stretching component disposed opposite to each other; the first stretching component and the second stretching component are respectively disposed on the upper and lower sides of the forming part; The lower half of the fixing frame is provided with a first fixing plate, a second fixing plate and a third fixing plate at intervals from top to bottom, and the first fixing plate, the second fixing plate and the third fixing plate are connected by fixing columns; wherein, the second tensioning component is located on the third fixing plate; The molding part includes a silicone tube that extends vertically through both ends; one end of the silicone tube is detachably connected to the first fixing plate, and the other end of the silicone tube is detachably connected to the second fixing plate; fasteners are provided at the connection points between the silicone tube and the first fixing plate and the second fixing plate, and the fasteners are interference-fitted with the silicone tube. The injection unit includes a syringe, one end of which is rotatably connected to the side of the first fixing plate away from the second fixing plate via a rotating shaft. The syringe is provided with an injection port located directly above the silicone tube. A steel ball is placed in the injection port, and the steel ball slides along the inner cavity of the silicone tube along with the liquid silicone rubber during injection. A first magnet is provided at the end of the syringe away from the rotation axis, and a second magnet is provided on the first fixing plate; the first magnet and the second magnet cooperate with each other to ensure that the injection port can quickly return to the position directly above the silicone tube when the syringe is rotated. The first stretching assembly includes a rack, a slider, and a first cylinder gripper; the fixing frame is provided with a slide rail, and the slider is slidably connected to the slide rail; one end of the rack is fixedly connected to the slider; the first cylinder gripper is connected to the end of the rack away from the slider and is located directly above the silicone tube; the fixing frame is provided with a rotary motor, and the drive end of the rotary motor is connected to a gear via a key pin; the gear and the rack cooperate with each other; the rotary motor drives the gear to rotate, and the gear drives the rack to move up and down, so as to move the first cylinder gripper closer to or away from the silicone tube; The second stretching assembly includes a second cylinder gripper; the second cylinder gripper is fixedly mounted on the third fixing plate and located directly below the silicone tube.

2. The processing equipment for a silicone tube with an internal spring according to claim 1, characterized in that, Fastening bushings are provided at the connection points between the first fixing plate, the second fixing plate, the third fixing plate and the fixing column.

3. The processing equipment for a silicone tube with an internal spring according to claim 1, characterized in that, There are two first tensioning components, which are arranged opposite to each other on both sides of the gear. The gear drives the racks on both sides to move up and down in opposite directions. There are two silicone tubes, which are respectively disposed on the first fixing plate and the second fixing plate, and are respectively disposed corresponding to the two first tensioning components; There are two syringes, which are respectively disposed on the side of the first fixing plate away from the second fixing plate, and the injection port of each syringe is respectively disposed corresponding to the two silicone tubes; There are two second stretching components, which are respectively disposed on the third fixing plate and respectively correspond to the two silicone tubes.

4. The processing equipment for a silicone tube with an internal spring according to claim 3, characterized in that, The third fixing plate has a glue storage groove on the side close to the second fixing plate. The glue storage groove is located around the second cylinder claw and is correspondingly arranged with the silicone tube.

5. The processing method of the built-in spring silicone tube processing equipment as described in any one of claims 1 to 4, characterized in that, Includes the following steps: Install the silicone tube inserted into the pre-compressed spring into the fastener of the fixed plate, and control the second cylinder claw to grab the lower end of the spring; the rotary motor rotates, the gear drives the rack downward, and stops when it reaches the position that the first cylinder claw can grab, and controls the first cylinder claw to grab the upper end of the spring; the rotary motor rotates in the opposite direction, the gear drives the rack upward, and pulls the spring up into a stretched state; After the rack moves up a certain distance, control the second cylinder gripper to release the bottom of the spring; the spring continues to move up a certain distance due to the tension, and after the spring is centered, control the first cylinder gripper to release the top of the spring; the rack continues to move up until the silicone tube is removed, and then press the shut-off button to stop the rotary motor; Move the syringe, and the first and second magnets attract each other, so that the injection port is directly above the silicone tube; inject the slow-flowing liquid silicone rubber from the injection port, so that it enters the inner wall of the silicone tube; put a steel ball into the injection port and let it fall vertically; the slow-flowing liquid silicone rubber slowly wraps the entire tube under the action of the steel ball. After curing for a period of time, the silicone tube is removed and placed in a vulcanization device for secondary shaping. Then, the excess part is trimmed off to complete the production of the silicone tube with the built-in spring.

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