KR101237110B1 - A medical suction unit - Google Patents

Abstract

PURPOSE: A forming shaft for a tube body forming apparatus is provided to improve the quality of molded articles by absorbing and reducing an impact force or vibration with a damper unit. CONSTITUTION: A forming shaft for a tube body forming apparatus has a damper unit for absorbing and reducing an impact or vibration transferred from the outside. The damper unit comprises a housing(11), a magnet(15), a buffer element, and a connection element. The housing is connected to the end of one between a cutting rod(2) and a welded rod(3). An exposing hole of the housing is formed toward the other rod thereof. The magnet is inserted into the housing, and one end of the magnet is exposed to the outside through the exposing hole. The buffer element is arranged between the interior of the housing and the exterior of the magnet, and absorbs the impact or vibration transferred from the outside. The connection element prevents the separation of the buffer element, and is connected to the rods.

Description

Shaft for tube body shaping device {A Medical Suction Unit}

The present invention relates to a tube body molding machine for receiving a sheet substrate, which is a synthetic resin fabric, and forming a cylindrical container. More specifically, the molding shaft for guiding conveying of the tube is an impact generated during the bonding and cutting process of the sheet substrate. The present invention relates to a molding shaft for a tube body molding apparatus capable of reducing absorption of vibrations and thus improving quality of a molded article.

In general, the flexible tube is used for packaging such as cosmetics or medicines ointments or contents for preserving the fragrance, and look into the type is divided into aluminum tube and laminate tube largely formed of aluminum depending on the material.

The aluminum tube is used for packaging medicines or contents requiring chemical resistance. Normally, an aluminum ingot having a predetermined size is formed into a cylindrical shape by an impact compression method, and a sealing process and a printing process And the like), and the like.

The aluminum tube manufactured as described above can be maintained in the entire body except the cap to maintain high barrier to gas and moisture, but is easily deformed due to the low restoring force of aluminum metal, which is inconvenient to use and also severely. In the case of bending, the bending portion is cut or broken, and the contents are leaked to the outside, which adversely affects the contents retention. In order to overcome this disadvantage, a laminate having high resilience while maintaining high barrier properties has been developed.

The flexible tube made of the laminate is used as a tube for packaging toothpaste or food and ointment, which are various paste-like materials, and is usually manufactured in a sheet state by adhering a substrate with an adhesive resin by extrusion lamination. After that, it is cut into a sheet or roll state, and the finished tube is made through a printing process and a seal process for cylindrical molding, and a sealing seal is made after filling the final contents. It does that.

The sheet forming the body of the flexible tube is a gas barrier layer of a large aluminum sheet as a gas barrier layer, and a plurality of polymers are laminated, and a high barrier material such as ethylene vinyl alcohol (Ethylenevinylalcohol (EVOH)) as a gas barrier layer. And a plastic gas barrier layer type in which a plurality of polymers are laminated. That is, the body of a conventional flexible tube is composed of an inner and outer heat-adhesive adhesive layer and an inner shielding layer. In the inner shielding layer, an aluminum sheet is laminated alone, and an aluminum sheet and a high strength plastic having high tensile strength and softening point. It is manufactured in a structure in which a film is laminated with a reinforcing layer to be laminated, and is used for the purpose of preventing ultraviolet rays, preventing gas permeation, and moisture permeation.

On the other hand, the tube is largely divided into a body that forms the contents receiving space, and the head is formed at the inlet of the body is composed of a stopper for taking out the contents, such tubes are ultrasonic frictional heat or After forming the cylindrical body by pressing using the pressure unit in the state that can be welded to join the mold using high frequency induction heating, and after connecting the head having an outlet to the opening portion on one side of the formed body It is produced by filling and sealing the contents.

In the bonding of the tube body in the cylindrical shape as described above, high frequency induction heating bonding heats aluminum sheet to melt the polyethylene film of the heat bonding layer, and pressurizes the tube to bond the heating body, heating temperature, time, pressure, adhesive strength, etc. In consideration of this, the thickness of the laminated substrate is determined, and the ultrasonic friction heat bonding, on the other hand, vibrates the polyethylene interface of the inner and outer surface layers to generate frictional heat and simultaneously press and bond to obtain the adhesive strength by applying the friction time, pressure, Bond strength is determined by combining factors such as amplitude,

In addition, in the welding of the tube body, the upper and lower overlapping portions of the joining part should be pressurized to a level of 3.0 kgf / cm 2 in order to obtain a bonding strength of 0.3 kg or more in a state of giving an overlap of 1.5 mm to 3.0 mm, Maintaining the compressibility at the level of 20 to 30% prevents leakage and obtains a constant burst strength. In addition, the burst strength is measured by the air pressure after injection molding the head of the outlet with polyethylene resin in the tube body can be an ideal quality standard only when the burst at 3.5 ~ 5bar.

Looking briefly at the forming apparatus of the tube body according to the prior art, first, the supply unit for winding the sheet fabric to the bobbin and supply through a plurality of rollers, and the base of the sheet state supplied from the supply unit in the shape of a round bar A heating unit for applying heat to the joining portions overlapping along the longitudinal direction in a rolled state on the molding shaft, and a pressurizing unit for pressurizing the joining portions of the body substrate passed through the heating unit to improve the joining state and pressurization. It is composed of a take-out unit for pulling out the body substrate.

The tube body forming apparatus having such a configuration has a problem of causing a defect in the molded article as a result of the minute vibrations and shocks being transmitted to the forming shaft in the process of bonding and cutting the sheet substrate.

That is, the tube body wound on the molding shaft is contacted toward the joint surface of the molding shaft by high frequency or ultrasonic heat, so that a small impact or vibration is transmitted to the molding shaft, so that precise control of the cutting state is difficult and the impact force is not removed. As the impact force is repeatedly transmitted from the outside in a non-state state, a displacement occurs in the entire molding shaft, and there is a problem in that an accessory supporting it is easily damaged or broken.

In order to solve such a problem, the present applicant, as an inventor, has applied for and registered an impact-relaxing device of a molding shaft in a tube molding machine through Korea Patent Registration No. 10-0974197.

In the tube molding machine, the shock-relaxing device of the molding shaft is defined in claim 1 in the molding shaft of the molding machine for forming a tube product, one end of which is fixed with a fastener and the other end is inserted into the cutting part, wherein the molding axis is cylindrical. A shear shaft portion formed of a cylindrical tube by a high frequency and an ultrasonic thermal bonder, which is formed as a joint surface formed of a tube of the guide tube while the tube fabric is guided through the guide and the joint alignment roller; The rear end of the front end of the shear shaft portion is composed of a loose end connected to the magnet, and is not affected by the minute impact occurring in the shear shaft portion (interference) while sandwiching the pinch bar formed by mounting a spring like a cylindrical tube Fine impacts caused by moving cutting to the cutting part affect the shear shaft part (interference) In a tube forming machine characterized by a configuration in which a series of tube forming operations performed on a forming shaft are precisely and precisely made, including a rear end shaft portion which is to be prevented, an impact relaxation device of a forming shaft is disclosed.

However, the conventional shock-absorbing device of the shaping shaft does not sufficiently absorb and reduce the shock or vibration caused by the contact between the bonding device and the shaping shaft during high frequency or ultrasonic bonding because the front shaft and the rear short shaft are connected by a magnet. In the tube forming process, various vibrations or shocks generated in the front shaft shaft and the rear shaft shaft of the molding shaft are transferred to the relative position.

Therefore, the entire shaping shaft has a problem of shaking or shaking due to vibration or shock, which not only shortens the life of accessories supporting the shaping shaft but also causes a problem of poor bonding quality of the molded article and cutting quality in the cutting process.

Korean Patent Publication No. 10-0974197, p. 2, claim 1,

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to provide a damper means for absorbing and reducing the shock or vibration between the cutting rod and the welding rod shock or vibration transmitted from the outside The present invention provides a molding shaft for a tube body molding apparatus capable of improving the quality of a molded article and durability of an accessory supporting the molding shaft by suppressing the flow of shaking and shaking of the molding shaft.

The molding shaft for a tube body forming apparatus according to a preferred embodiment of the present invention for realizing the above object is provided in a round bar shape for guiding a sheet substrate to have a cylindrical tube shape, and one end of the tube body is rolled into a cylindrical shape. A welding rod disposed on the side of the jointer for joining the joined portions and a cutting rod side disposed on the cutting machine side for cutting the cylindrical tube body joined by detachably connecting the welding rod with magnetic force, and having a pinch rod supported by a spring on an outer surface thereof. In the forming shaft for the tube body forming apparatus consisting of a rod,

The shaping shaft is provided with damper means for absorbing and reducing shocks and vibrations transmitted from the outside, wherein the damper means is integrally connected to one end of any one of the cutting rod and the welding rod, and is provided toward the counter rod. A housing having a tubular shape with exposure holes formed therein; A magnet inserted into the housing and having one end exposed to the outside through an exposure hole; A buffer element provided between an inner surface of the housing and an outer surface of the magnet to absorb and reduce shock force and vibration transmitted from the outside, and a connection element for connection with a rod while preventing separation of the buffer element,
The connecting element is any one of the cutting rod and the welding rod is formed on the end of the screw shaft portion is formed with a screw thread on the outer surface, the damper means is a nut member formed with a screw hole to be screwed with the screw shaft portion inside the housing It includes that is provided,
The shock absorbing element is composed of a buffer ring made of any one of a rubber material, a silicon material, a urethane material, a synthetic resin material, and a coil spring between the nut member and the screw shaft portion in the axial direction of the screw shaft portion to absorb shocks and vibrations. have.

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In another preferred aspect of the present invention, the magnet comprises a contact end passing through the exposure hole and a body part provided with a reduced diameter inside the housing, and the contact end may pass through the inside of the housing. A buffer bushing formed of any one of a rubber material, a silicon material, a urethane material, and a synthetic resin material is provided to surround the outer portion of the body part while forming a hole of the body part, and is fitted inside the housing to shield a space in which the magnet is accommodated. It is provided with a buffer shield plate formed of any one of a rubber material, a silicon material, a urethane material, a synthetic resin material, the nut member formed with a screw hole is provided in the inner space of the housing of the buffer shield plate.

In another preferred aspect of the present invention, the space between the buffer bushing and the buffer shielding plate provided in the housing is filled with a liquid buffer material made of a liquid urethane or rubber and a synthetic resin material, or a foamed urethane or foamed synthetic resin material and The foam cushioning material is filled with a foam or further comprises an auxiliary bushing made of a ring member in the form of a bushing formed of any one of rubber, silicone, urethane and synthetic resin.

The molding shaft for a tube body molding apparatus according to the present invention has a simple structure in which a damper means for absorbing and reducing various vibrations or impact forces generated in the joining and cutting process is further provided between the cutting rod and the welding rod constituting the molding shaft. By changing and buffering and removing various impact forces or vibrations generated in the molding process of the tube body, it is useful to improve the product value of the product by improving the quality of the molded product.

In addition, the present invention can be expected to have the advantage of enabling economical maintenance as well as improving durability of the accessories supporting the molding shaft as the molding shaft is minimized from shaking or floating from external impact or vibration. have.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

1 is a perspective view showing a molding apparatus to which a molding shaft for a tube body molding apparatus according to the present invention is applied;
Figure 2 is a perspective view showing the main configuration of the molding shaft for a tube body forming apparatus according to the present invention,
3 is an exploded perspective view for explaining a forming shaft for a tube body forming apparatus according to the present invention;
4 is a cross-sectional view for explaining the internal configuration of the molding shaft for a tube body forming apparatus according to the present invention;
Figure 5 is a cross-sectional view for explaining the conveying operation of the narrowing region in the forming shaft for the tube body forming apparatus according to the present invention.

Hereinafter, a molding shaft for a tube body molding apparatus according to the present invention with reference to the accompanying drawings as follows. First, it should be noted that the same components or parts among the drawings are denoted by the same reference numerals as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view showing a molding apparatus to which a molding shaft for a tube body molding apparatus according to the present invention is applied. A molding shaft having a round bar shape for guiding the sheet base material into a cylindrical shape, a jointer 5 for joining the joint portions (unsigned) of an unbonded cylindrical tube body moving along the molding shaft, A tube body forming apparatus 1 is shown, which comprises a cutter 9 for cutting a cylindrical tube body t having a joining process to a predetermined size and a conveying unit 7 for conveying the tube body t. The molding shaft in this invention is the structure comprised so that detachable by the welding rod 3 and the cutting rod 2 is possible.

Figure 2 is a perspective view showing the main portion of the molding shaft for a tube body forming apparatus according to the present invention. In the drawing, the welding rods 3 arranged on the jointer 5 side and the cutting rods 2 arranged on the cutting machine 9 side, the springs 2s and the pinching rods 4 formed on the outer surface thereof, and these welding rods 3 In the embodiment of the present invention as shown in the rod end of any one of the cutting rod (2) and the cutting rod (2) is shown a forming shaft consisting of a damper means (10) provided on the cutting rod (2) side.

3 is an exploded perspective view for explaining a forming shaft for a tube body forming apparatus according to the present invention. In the drawing, a welding rod (2) having a spring (2s) and a pinch rod (4) formed on its outer surface, and a welding rod detachably provided by magnetic force with the cutting rod (2) and the damper means (10) interposed therebetween. (3) and a molding shaft, which is provided between the cutting rod 2 and the welding rod 3, is composed of damper means 10 in which various buffers and magnets 15 are assembled.

4 is a cross-sectional view for explaining an internal configuration of a molding shaft for a tube body molding apparatus according to the present invention. In the drawing, a housing 11 assembled by screwing to an end of a cutting rod 2, a magnet 15 positioned inside the housing 11 and partially exposed to the outside, and the magnet 15 A damper means 10 is shown which consists of several cushioning elements surrounding the periphery and connecting elements connected to the cutting rods 2 while preventing their escape.

5 is a cross-sectional view for explaining the conveying operation of the narrowing region in the forming shaft for the tube body forming apparatus according to the present invention. The figure shows the movement of the pinning rod 4, including the impact force generated when the pinching rod 4 moves, and various impact forces and vibrations transmitted from the outside of the forming shaft (for example, the jointer 5 and the cutting machine 9). The damper means 10 for absorbing and reducing shock (vibration transmitted during operation) is shown.

Referring to the drawings the molding axis for a tube body forming apparatus according to the present invention will be described.

The molding shaft of the present invention is provided in a round bar shape for guiding the sheet substrate to have a cylindrical tube shape, and is connected to the splicer 5 for joining the molded part of the tube body whose one end is rolled into a cylinder through high frequency induction heating or ultrasonic heating. A welding rod 3 which is arranged to guide the tube body t, which is arranged to be cylindrical, and is joined to the jointer 5 side, and a cylindrical shape joined by being detachably connected to one end of the welding rod 3 by magnetic force. Cutting rods (2) and welding rods (2) which are arranged on the side of the cutting machine (9) for cutting the tube body (t) to a predetermined size and provided with pinching rods (4) supported on the outer surface by springs (2s). The damper means 10 is disposed between the rods 3 to absorb and reduce shocks and vibrations transmitted from the outside.

Here, the cutting rods 2, the welding rods 3, and the bonding machine 5 and the cutting machine 9 constituting the molding shaft are carried out by a known technique, and thus detailed description thereof will be omitted.

The present invention, by absorbing and reducing the impact or external force transmitted to the molding shaft to suppress the occurrence of flow, such as shaking or shaking of the molding shaft to ensure a stable bonding and cutting to the tube body (t), and to support the molding shaft An additional configuration of the damper means 10 for improving the durability of the accessory is the main technical feature.

The damper means 10 according to the present invention includes a housing 11 which largely forms an outer body, a magnet 15 provided inside the housing 11 and partially exposed to the outside, and the housing 11 of the housing 11. It is composed of a cushioning element which is provided inside and is a cushioning material for absorbing and reducing shocks and vibrations, and a connecting element for connecting with a mating rod while preventing the buffering element from being separated to the outside of the housing 11.

The housing 11 is integrally connected to one end of any one of the cutting rod 2 and the welding rod 3, and is provided in a tubular shape in which an exposure hole 16s is formed toward the mating rod.

The magnet 15 is inserted into the housing 11 so that one end thereof is exposed to the outside through the exposure hole 16s, and the magnet 15 of the present invention is the exposure hole 16s. It consists of a contact end portion (15b) passing through and a body portion (15a) provided with a reduced diameter inside the housing (11).

The cushioning element is provided between the inner surface of the housing 11 and the outer surface of the magnet 15 to absorb and reduce the impact force and vibration transmitted from the outside, the buffer element in the present invention is a buffer ring 12, and the buffer And a bushing 16 and a buffer shield plate 14 and an auxiliary bushing 17.

The buffer ring 12 is a rubber material, a silicone material, a urethane material, a synthetic resin material that absorbs and reduces shock or vibration between the nut member 13 and the screw shaft portion 2n in the axial direction of the screw shaft portion 2n to be described later. It is molded into any one of the coil springs.

The buffer bushing 16 surrounds an outer portion of the body portion 15a while forming a hole 16s through which the contact end portion 15b passes through the inside of the housing 11. , Silicone material, urethane material, synthetic resin material.

The buffer shield plate 14 is fitted into the housing 11 to shield a space in which the magnet 15 is accommodated, and is formed of any one of rubber, silicone, urethane, and synthetic resin.

The auxiliary bushing 17 is provided in a space between the buffer bushing 16 and the buffer shielding plate 14 provided inside the housing 11 to absorb and reduce shocks and vibrations. And a bushing type ring member filled with a liquid buffer material made of a synthetic resin material, or filled with a foamed urethane or foamed synthetic resin material and a foamed buffer material made of foam, or formed of any one of rubber, silicone, urethane, and synthetic resin materials. Can be provided. The auxiliary bushing 17 in the present invention preferably proposes to fill a liquid urethane material or rubber material.

The buffer element of this configuration is connected to the cutting rod (2) or welding rod (3) while preventing the separation by the connecting element to be described later.

The connecting element is an element for connecting with the rod while preventing the separation of the cushioning element. The rod of either the cutting rod 2 or the welding rod 3 has a screw shaft portion 2n having a threaded line at its end. And a nut member 13 having a screw hole 13s formed in the housing 11 to be screwed to the screw shaft portion 2n.

In the present invention, the connecting element forms a screw shaft portion 2n on the cutting rod 2 side, and exemplifies a configuration in which it is assembled, but in addition to the cutting rod 2, the screw shaft portion is formed on the welding rod 3 side. It may also be possible to assemble with screw fastening.

Referring to the operation of the molding shaft for a tube body forming apparatus according to the present invention configured as described above are as follows.

At the time of the bonding process of the bonding machine 5 of a high frequency heating or the ultrasonic heating system, or the cutting process that the cutter 9 cut | disconnects the tube body t, a shock and a vibration are transmitted to a shaping | molding shaft.

That is, during the joining process, since the tube body t is not transferred, the cutting process is performed at the same time. The impact or vibration generated at the joining machine 5 side is disposed at the cutting machine 9 side through the welding rod 3. It is transmitted to the cutting rod 2 side, on the contrary, the impact or vibration generated in the cutting machine 9 is transmitted to the welding rod 3 side through the cutting machine (9).

At this time, the damper means 10 of the present invention is disposed between the cutting rod (2) and the welding rod (3), the buffer ring 12 and the buffer bushing 16 and the buffer buffer constituting the damper means (10) As the shielding plate 14 and the auxiliary bushing 17 absorb and reduce vibration generated during the operation of the apparatus including the joining process and the cutting process, the occurrence of flow such as shaking or shaking of the molding shaft is suppressed. The precision of the cutting process can be improved, and the durability of various components supporting the molding axis can be expected.

On the other hand, the present invention is not limited to the described embodiments, it is possible to use and change the application site, it is common in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have knowledge. Therefore, such modifications or variations will have to belong to the claims of the present invention.

1: tube body forming apparatus 2: cutting rod
2s: spring 3: welding rod
4: pinching rod 5: adapter
7: transfer unit 9: cutting machine
10 damper means 11 housing
12: buffer ring 13: nut member
14: cushion shield 15: magnet
16: buffer bushing 17: auxiliary bushing

Claims (4)

A welding rod 3 provided with a round bar shape for guiding the sheet base material into a cylindrical tube shape, the welding rod 3 disposed on the side of the splicer 5 for joining the joined portions of the tube body t rolled into a cylindrical shape, and the welding The pinch bar 4 is disposed on the cutting machine 9 side for cutting the cylindrical tube body t joined by being detachably connected to the rod 3 by magnetic force, and is supported by a spring 2s on the outer surface thereof. In the molding shaft for a tube body forming apparatus consisting of a cutting rod (2),
The shaping shaft includes a damper means 10 for absorbing and reducing shocks and vibrations transmitted from the outside, wherein the damper means 10 includes one of the cutting rods 2 and the welding rods 3. A housing 11 which is integrally connected to the end and has a tubular shape in which an exposure hole 16s is formed toward the counter rod; A magnet 15 inserted into the housing 11 and having one end thereof exposed to the outside through an exposure hole 16s; It is provided between the inner surface of the housing 11 and the outer surface of the magnet 15 includes a shock absorbing element for absorbing and reducing the impact force and vibration transmitted from the outside and a connection element for connecting the rod while preventing the separation of the shock absorbing element. ,
The connecting element, the rod of any one of the cutting rod (2) or welding rod (3) is formed on the end of the screw shaft portion (2n) is formed with a screw thread on the outer surface, the damper means 10 is the housing 11 A nut member 13 formed with a screw hole 13s to be screwed to the screw shaft portion 2n is provided in the inside thereof,
The shock absorbing element includes a rubber material, a silicone material, a urethane material, a synthetic resin material, and a coil spring that absorb and reduce shocks and vibrations between the nut member 13 and the screw shaft portion 2n in the axial direction of the screw shaft portion 2n. One of the buffer rings 12;
Molding shaft for a tube body forming apparatus characterized in that it further comprises.
delete The method of claim 1,
The magnet 15 is composed of a contact end portion 15b passing through the exposure hole 16s and a body portion 15a provided with a reduced diameter inside the housing 11,
The inner part of the housing 11 forms a hole 16s through which the contact end portion 15b can pass, and surrounds the outer part of the body portion 15a to form a rubber material, a silicone material, a urethane material, and a synthetic resin. A buffer bushing 16 formed of any one of the ashes is provided,
It is provided inside the housing 11 to shield the space in which the magnet 15 is accommodated, and the buffer shield plate 14 formed of any one of a rubber material, a silicon material, a urethane material, and a synthetic resin material is provided.
Molding shaft for a tube body forming apparatus, characterized in that the nut member (13) having a screw hole (13s) is fitted in the inner space of the housing (11) on one side of the buffer shield plate (14).
The method of claim 3,
The space between the cushioning bushing 16 and the buffer shielding plate 14 provided in the housing 11 is filled with a liquid buffer material made of a liquid urethane or rubber and a synthetic resin material, or a foamed urethane or foamed synthetic resin material and Tube body molding, characterized in that it further comprises an auxiliary bushing (17) made of a foam member filled with a foam cushioning material or a bushing type formed of any one of rubber, silicone, urethane and synthetic resin materials. Molding shaft for the device.

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