Infusion bag set interface ultrasonic welding apparatus

Abstract

The utility model provides a kind of infusion bag combination interface ultrasonic welding equipment, including infusion bag conveying line's rack, ultrasonic welding equipment and controller, transmission belt and its driving motor are installed on rack, its characteristics are: first air cylinder is arranged on transducer support, second air cylinder is arranged on the welding station of rack, first air cylinder is connected with transducer and ultrasonic welding head by with, auxiliary support is arranged on the piston rod of second air cylinder.Ultrasonic welding head sets up first semicircular recess, auxiliary support sets up second semicircular recess, controller is used to control infusion bag conveying line intermittent operation and ultrasonic welding head and auxiliary support's front and back movement, by first semicircular recess and second semicircular recess, the welding station pause moving infusion bag connecting pipe and mouth cover combination part are clamped and pressurized and ultrasonic welding.Ultrasonic welding can be carried out to the contact part of inner layer of mouth cover and connecting pipe, increase the opening force intensity of pipe cover connection, reliable welding, without damaging appearance and internal structure, convenient and flexible to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bag filling machine, and relates to the improvement of welding technology in the non-PVC soft bag infusion product filling machine, in particular to an infusion bag combination interface ultrasonic welding equipment. BACKGROUND

[0002] At present, the infusion soft bag product is usually of inner and outer bag and double-port pipe (medicine adding port and puncture port) structure, after the connecting pipe of the infusion soft bag is buckled with the port cover, the infusion soft bag conveyed by the infusion soft bag production conveying line is hung to the welding station, and then the hot welding equipment is used for heating and welding, so that the port cover and the upper port of the connecting pipe are welded as a whole, and the firmness of the connection between the connecting pipe and the port cover is increased.

[0003] Chinese invention patent (patent number: 200810237840.4) discloses a connecting process of a soft bag infusion connecting pipe port cover, and the characteristics are as follows: including the following steps: A, producing and processing an improved structure connecting pipe and port cover, one or both of the plastic connecting pipe and the port cover has a ring-shaped plane convex edge at the mutual contact edge; B, inserting and assembling the connecting pipe and the port cover together on the equipment by mechanical force; C, designing and manufacturing a hot fusion welding mold, which is a two-body structure heater, and the heating part in the middle of the two bodies just accommodates the plane convex edge structure of the connecting pipe and the port cover joint part after being folded; D, sending the inserted and assembled connecting pipe port cover to the welding station of the welding mold, and the welding mold performs circumferential hot fusion welding on the connecting pipe port cover under the action of time, temperature and pressure, so that the ring-shaped plane convex edges are regularly bonded together. The firmness and sealing property of the connection between the plastic connecting pipe and the port cover are better, the process is simple, the efficiency is high, and the influence of adverse factors on the infusion product is reduced.

[0004] However, the above patent has the following problems:

[0005] 1. The hot welding equipment is used for heating and welding the port cover on the connecting pipe on the infusion soft bag production conveying line, so that the welding part is only on the surface, the inner layer of the port cover and the contact part of the connecting pipe cannot be welded, the opening force after welding is small, and the port cover cannot be prevented from falling off more effectively. Especially when the easy-to-pull handle cover on the top of the infusion bag is opened and turned to the other side, the welding part on the turning direction side is subjected to a large stress, and is particularly prone to cracking.

[0006] 2. The product production speed on the infusion soft bag production conveying line is fast, the welding station is continuously output, and the splashed medicine liquid directly affects the welding effect, and the existing hot welding equipment cannot guarantee that the welding effect of the port cover on each bag product is the same.

[0007] How to design a kind of infusion bag combination interface ultrasonic welding equipment, can carry out ultrasonic welding to the contact part of inner layer of port cover and connecting pipe, increase the opening force strength of pipe cover connection, welding is reliable, does not damage appearance and internal structure, it is convenient, flexible to use, this is the technical problem to be solved urgently in the prior art. The utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment, which can carry out ultrasonic welding to the contact part of inner layer of port cover and connecting pipe, increase the opening force strength of pipe cover connection, welding is reliable, does not damage appearance and internal structure, it is convenient, flexible to use.

[0008] The utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment, which can carry out ultrasonic welding to the contact part of inner layer of port cover and connecting pipe, increase the opening force strength of pipe cover connection, welding is reliable, does not damage appearance and internal structure, it is convenient, flexible to use.

[0009] The utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment, which can carry out ultrasonic welding to the contact part of inner layer of port cover and connecting pipe, increase the opening force strength of pipe cover connection, welding is reliable, does not damage appearance and internal structure, it is convenient, flexible to use.

[0010] A kind of infusion bag combination interface ultrasonic welding equipment, including infusion bag conveying line's rack, ultrasonic welding equipment and controller, the rack is installed with the transmission belt of several infusion bag hangers and its drive motor, the ultrasonic welding equipment includes ultrasonic generator, transducer and transducer support, the front end of the transducer is connected with ultrasonic welding head by connecting shaft, the controller is connected with the control end of the ultrasonic generator, it is characterized in that, the transducer support is provided in the front of welding station on the rack, first air cylinder is provided on the transducer support, second air cylinder is provided in the rear side of welding station on the rack, the rear end of the transducer is connected with the piston rod of the first air cylinder, the piston rod of the second air cylinder is provided with auxiliary support, and the ultrasonic welding head and the auxiliary support form welding fixture, the front end of the ultrasonic welding head is provided with first semicircular groove, the end of the auxiliary support close to the ultrasonic welding head is provided with second semicircular groove, the control end of the drive motor, first air cylinder and second air cylinder is connected with the controller respectively, the controller is used to control the intermittent operation of the transmission belt and the longitudinal front and back movement of the ultrasonic welding head and the auxiliary support, and the infusion bag connecting pipe and port cover combination part that are temporarily stopped moving in welding station are clamped and pressurized and ultrasonic welded by the first semicircular groove and second semicircular groove.

[0011] The improvement of the above technical solution is that a first inductive switch is arranged on the welding station of the rack, the first inductive switch is connected with the controller, and when the infusion bag hanger carrying the infusion bag reaches the welding station, the first inductive switch sends a signal to the controller to stop running for a period of time, the controller controls the drive motor to stop for a period of time, and simultaneously controls the ultrasonic generator, the first air cylinder and the second air cylinder to run at the same time, so that the ultrasonic welding head and the auxiliary support move towards each other, and the infusion bag connecting pipe and port cover combination part are continuously clamped and pressurized in a ring shape and ultrasonic welded in a half-ring shape for a period of time and then reset.

[0012] Further improvement of the above technical scheme: the transducer support is provided with a guide rail, the transducer is arranged on the guide rail, a second induction switch is arranged on the transducer support close to the starting end of the guide rail, the second induction switch is connected with the controller, and when the first cylinder and the second cylinder are respectively retracted to reset the piston rod, the second induction switch senses the reset of the transducer and sends a stop running signal to the controller, and the controller controls the driving motor to stop running.

[0013] Further improvement of the above technical scheme: a sliding groove is arranged on the rear side of the welding station of the rack, a convex strip arranged at the bottom of the auxiliary support is embedded in the sliding groove to realize forward and backward sliding, a pressure sensor is arranged on the connecting part of the piston rod of the second cylinder and the auxiliary support, and the pressure sensor is connected with the controller, so as to detect the pressure value applied by the auxiliary support to the connecting pipe of the infusion bag and the cover combination part.

[0014] Further improvement of the above technical scheme: a third cylinder is arranged on the upper part of the welding station of the rack, the piston rod of the third cylinder is arranged vertically, and a pressing block is arranged at the lower end of the piston rod, the controller is connected with the control end of the third cylinder, so as to control the downward movement of the piston rod of the third cylinder, and the pressing block applies pressure to the top of the cover while the auxiliary support clamps the connecting pipe of the infusion bag and the cover combination part.

[0015] Further improvement of the above technical scheme: the ultrasonic welding head is three-step-shaped, the ultrasonic welding head is thickest at the part connected with the connecting shaft, the part provided with the first semicircular groove is thinnest, the first semicircular groove on the ultrasonic welding head has two and is arranged side by side, a slot hole is arranged in the middle of the ultrasonic welding head, the ultrasonic welding head is detachably connected with the connecting shaft, and the number, shape and size of the first semicircular groove and the second semicircular groove are the same.

[0016] Further improvement of the above technical scheme: mounting holes are arranged on the auxiliary support, heating rods are arranged in the mounting holes to form heating welding clamps, a control switch is arranged on the power circuit connected with the heating rods, and the control switch is controlled to be opened and closed by the controller, so as to realize semi-ring clamping and hot welding of the connecting pipe of the infusion bag and the cover combination part.

[0017] The advantages and positive effects of the utility model are:

[0018] 1. The utility model can ultrasonically weld the inner layer of the cover of the infusion bag and the contact part of the connecting pipe, increase the opening strength of the pipe cover connection, the welding is reliable, and the appearance and internal structure are not damaged.

[0019] 2. The ultrasonic welding head of the utility model has simple structure, is convenient to process and manufacture, and is convenient to install and dismount.

[0020] 3. The utility model discloses a heating rod is arranged in the auxiliary support and forms a heating welding clamp, increases the semiannular clamping heat welding to the infusion bag connecting pipe and the cover combination part, makes the welding more firm and reliable, can open and close the control switch of the heating rod by the controller, convenient and flexible to use. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the front view of the main part use state in the utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment;

[0022] Figure 2 It is the plan view of the main part use state in the utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment;

[0023] Figure 3 It is the three-dimensional enlarged view of the ultrasonic welding head in the utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment;

[0024] Figure 4 It is the plan view of the auxiliary support in the utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment;

[0025] Figure 5 It is the control principle block diagram of the utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment.

[0026] The serial number in drawing is: 1, auxiliary support;1.1, second semicircular groove;2, ultrasonic welding head;2.1, first semicircular groove;2.2, slot hole;3, connecting shaft;4, transducer;5, cover;6, infusion bag connecting pipe. DETAILED DESCRIPTION

[0027] The utility model is further described in detail as follows in connection with the drawings:

[0028] Referring to Figures 1-5The utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment embodiments, including infusion bag conveying line's rack, ultrasonic welding equipment and controller, the rack is installed with the transmission belt of several infusion bag hanging frame and its driving motor.Therefore, the utility model discloses a kind of infusion bag combination interface ultrasonic welding equipment, which can realize the automatic welding of infusion bag connection pipe and port cover, and the welding quality is improved.

[0029] Further, the welding station on the rack is provided with a first inductive switch, the first inductive switch is connected with the controller, and when the infusion bag hanging frame carries the infusion bag to the welding station, the first inductive switch sends a signal of stopping running for a period of time to the controller, the controller controls the driving motor to stop for a period of time, and simultaneously controls the ultrasonic generator, the first cylinder and the second cylinder to run simultaneously, so that the ultrasonic welding head and the auxiliary support move towards each other, and the infusion bag connection pipe and the port cover are continuously clamped and pressurized in a ring shape and semi-annular ultrasonic welded for a period of time and then reset.

[0030] Further, a guide rail is arranged on the transducer support, and the transducer is arranged on the guide rail. A second inductive switch is arranged on the transducer support close to the starting end of the guide rail. The second inductive switch is connected with the controller. When the first cylinder and the second cylinder are respectively retracted to reset the piston rods, the second inductive switch senses the reset of the transducer and sends a signal of stopping running to the controller, and the controller controls the driving motor to stop running.

[0031] Furthermore, a sliding groove is provided on the rear side of the welding station on the aforementioned frame. A protruding strip at the bottom of the auxiliary support 1 is embedded in the sliding groove to achieve forward and backward sliding. A pressure sensor is installed at the connection between the piston rod of the second cylinder and the auxiliary support 1. The pressure sensor is connected to the controller and is used to detect the pressure value applied by the auxiliary support 1 to the joint between the infusion bag connecting tube 6 and the cap 5. In actual use, the pressure value applied by the auxiliary support 1 to the joint between the infusion bag connecting tube 6 and the cap 5 can be adjusted by adjusting the fixed position of the second cylinder.

[0032] Furthermore, a third cylinder is installed on the upper part of the welding station on the frame. The piston rod of the third cylinder is vertically arranged, and a pressure block is installed at its lower end. The controller is connected to the control end of the third cylinder and is used to control the piston rod of the third cylinder to move downward. While the auxiliary support 1 and the ultrasonic welding head 2 are clamping the joint between the infusion bag connecting tube 6 and the cap 5, the pressure block applies pressure downward to the top of the cap 5 to tighten the cap 5.

[0033] Specifically: The ultrasonic welding head 2 is a three-step shape. The section connecting the ultrasonic welding head 2 to the connecting shaft is the thickest, while the section with the first semi-circular groove 2.1 is the thinnest. There are two first semi-circular grooves 2.1 on the ultrasonic welding head 2, arranged side by side. The first semi-circular groove 2.1 is a small semi-circle. A long slot 2.2 is provided in the middle of the ultrasonic welding head 2. The ultrasonic welding head 2 and the connecting shaft 3 are detachably connected for easy disassembly and installation. There are two second semi-circular grooves 1.1 on the auxiliary bracket 1, arranged side by side.

[0034] To ensure a stronger and more reliable weld, mounting holes are provided within the auxiliary support 1. A heating rod is installed within these holes to form a heating welding fixture. A control switch is installed on the power circuit connected to the heating rod, and this control switch is opened and closed by the aforementioned controller. This is used to achieve semi-circular clamping heat welding of the connection between the infusion bag connecting tube and the cap. This technical solution can be implemented by modifying existing equipment that has already implemented the connection process for the soft bag infusion connecting tube cap as described in Chinese Invention Patent (Patent No.: 200810237840.4). One of the welding molds for the two components can be retained, and the other can be replaced by the ultrasonic welding head 2 of the ultrasonic welding equipment in this utility model. This makes equipment modification convenient and cost-effective. When heat welding is not required, the aforementioned controller can turn off the control switch on the power circuit of the heating rod, providing convenient and flexible control.

[0035] In practical use, this utility model operates according to the following steps:

[0036] 1. Infusion bags, which are transported by a conveyor belt with several infusion bag hangers at the front end, enter the welding station along the conveyor belt;

[0037] 2. The utility model discloses equipment according to the parameter set on the controller, utilize the waiting pause time of filling machine filling, the utility model discloses equipment work, complete ultrasonic welding, restore original position automatically after welding;

[0038] 3. The equipment is composed of ultrasonic controller, transducer 4, ultrasonic welding head 2, auxiliary support 1 and various spare parts such as switches, and the parameters are verified to confirm the best parameters;

[0039] 4. The infusion soft bag product welded is checked regularly to confirm the effect.

[0040] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Within the essential scope of the utility model, changes, modifications, additions or replacements made by ordinary skilled in the art also belong to the protection scope of the utility model.

Claims

1. An ultrasonic welding device for the combination interface of infusion bags, comprising a rack for the conveying line of infusion bags, an ultrasonic welding device and a controller, the rack is provided with a conveying belt having a plurality of infusion bag hangers and a driving motor therefor, the ultrasonic welding device comprises an ultrasonic generator, a transducer and a transducer support, the front end of the transducer is connected with an ultrasonic welding head through a connecting shaft, and the controller is connected with the control end of the ultrasonic generator, characterized in that, The transducer support is arranged in front of the welding station on the rack, a first cylinder is arranged on the transducer support, a second cylinder is arranged at the rear side of the welding station on the rack, the piston rod of the first cylinder is connected with the rear end of the transducer, the piston rod of the second cylinder is provided with an auxiliary support, and the ultrasonic welding head and the auxiliary support constitute a welding clamp, a first semicircular groove is arranged on the front end of the ultrasonic welding head, a second semicircular groove is arranged on the end of the auxiliary support close to the ultrasonic welding head, the controller is connected with the control ends of the driving motor, the first cylinder and the second cylinder, and the controller is used for controlling intermittent operation of the transmission belt and longitudinal forward and backward movement of the ultrasonic welding head and the auxiliary support, the first semicircular groove and the second semicircular groove are used for clamping and pressurizing and ultrasonic welding of the joint between the connecting tube of the infusion bag and the cap which is temporarily stopped moving at the welding station.

2. The combination set of infusion bags ultrasonic welding apparatus according to claim 1, characterized in that, The welding station on the rack is provided with a first induction switch, the first induction switch is connected with the controller, and the first induction switch is used for sending a signal of stopping running for a period of time to the controller when the infusion bag hanger carrying the infusion bag reaches the welding station, the controller controls the driving motor to stop for a period of time, controls the ultrasonic generator, the first cylinder and the second cylinder to operate at the same time, and makes the ultrasonic welding head and the auxiliary support move towards each other, so that annular clamping and pressurizing and semicircular ultrasonic welding of the joint between the connecting tube of the infusion bag and the cap are continuously performed for a period of time and then reset.

3. The combination set of infusion bags ultrasonic welding apparatus according to claim 1 or 2, characterized in that, A guide rail is arranged on the transducer support, the transducer is arranged on the guide rail, a second induction switch is arranged on the transducer support close to the starting end of the guide rail, the second induction switch is connected with the controller, and the second induction switch is used for sending a signal of stopping running to the controller when the first cylinder and the second cylinder are respectively retracted to reset the piston rod, the second induction switch senses the reset of the transducer and sends a signal of stopping running to the controller, and the controller controls the driving motor to stop running.

4. The set of infusion bag interface ultrasonic welding apparatus of claim 3, wherein, A sliding groove is arranged at the rear side of the welding station on the rack, a convex strip arranged at the bottom of the auxiliary support is embedded in the sliding groove to realize forward and backward sliding, a pressure sensor is arranged on the connecting part of the piston rod of the second cylinder and the auxiliary support, and the pressure sensor is connected with the controller and is used for detecting the pressure value applied by the auxiliary support to the joint between the connecting tube of the infusion bag and the cap.

5. The combination set of infusion bags ultrasonic welding apparatus according to claim 1 or 2, characterized by, A third cylinder is arranged at the upper part of the welding station on the rack, the piston rod of the third cylinder is arranged vertically, a pressing block is arranged at the lower end of the piston rod, the controller is connected with the control end of the third cylinder, and the controller is used for controlling downward movement of the piston rod of the third cylinder to apply pressure to the top of the cap by the pressing block while the auxiliary support and the ultrasonic welding head clamp the joint between the connecting tube of the infusion bag and the cap.

6. The combination set of infusion bags ultrasonic welding apparatus according to claim 4, wherein, The third cylinder is arranged on the upper part of the welding station of the rack, the piston rod of the third cylinder is arranged vertically, and a pressing block is arranged at the lower end of the piston rod, the controller is connected with the control end of the third cylinder, and is used for controlling the downward movement of the piston rod of the third cylinder, and the pressing block is used for pressing the top of the port cover downward when the auxiliary support and the ultrasonic welding head clamp the connecting pipe of the infusion bag and the port cover combination part.

7. The combination set of infusion bags ultrasonic welding apparatus according to claim 1 or 2, characterized by, The ultrasonic welding head is three-step-shaped, the thickness of the part connected with the connecting shaft is the thickest, the thickness of the part provided with the first semicircular groove is the thinnest, the first semicircular grooves on the ultrasonic welding head are two and arranged side by side, a slot hole is arranged in the middle of the ultrasonic welding head, the ultrasonic welding head is detachably connected with the connecting shaft, and the number, shape and size of the first semicircular grooves and the second semicircular grooves are the same.

8. The combination set of infusion bags ultrasonic welding apparatus according to claim 6, wherein, The ultrasonic welding head is three-step-shaped, the thickness of the part connected with the connecting shaft is the thickest, the thickness of the part provided with the first semicircular groove is the thinnest, the first semicircular grooves on the ultrasonic welding head are two and arranged side by side, a slot hole is arranged in the middle of the ultrasonic welding head, the ultrasonic welding head is detachably connected with the connecting shaft, and the number, shape and size of the first semicircular grooves and the second semicircular grooves are the same.

9. The combination set of infusion bags ultrasonic welding apparatus according to claim 1 or 2, characterized by, The mounting hole is arranged on the auxiliary support, the heating rod is arranged in the mounting hole to form a heating welding clamp, a control switch is arranged on the power supply circuit connected with the heating rod, and the control switch is controlled to be opened and closed by the controller, so as to realize the semi-ring clamping and hot welding of the connecting pipe of the infusion bag and the port cover combination part.

10. The combination set of infusion bags ultrasonic welding apparatus according to claim 8, wherein, The mounting hole is arranged on the auxiliary support, the heating rod is arranged in the mounting hole to form a heating welding clamp, a control switch is arranged on the power supply circuit connected with the heating rod, and the control switch is controlled to be opened and closed by the controller, so as to realize the semi-ring clamping and hot welding of the connecting pipe of the infusion bag and the port cover combination part.

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