A mouthpiece preheating structure for a circular interface

Abstract

The application discloses a mouth tube preheating structure of a circular interface and relates to the technical field of soft bag production and manufacturing. The mouth tube preheating structure of the circular interface comprises a fixing assembly, a preheating die, a heating unit and a rotating unit, the fixing assembly is provided with an assembly hole, the preheating die is arranged in the assembly hole, the preheating die is provided with a matching hole, a soft bag mouth tube can be inserted into the matching hole and is attached to the preheating die, the heating unit is arranged on the preheating die and is used for heating the preheating die, so that the soft bag mouth tube is preheated, and the rotating unit is arranged on the fixing assembly and is used for driving the fixing assembly to rotate, thereby driving the preheating die to rotate relative to the soft bag mouth tube. The mouth tube preheating structure of the circular interface can avoid uneven preheating of the mouth tube, thereby avoiding the phenomenon that the mouth tube is not firmly welded.

Description

Technical Field

[0001] This application relates to the field of soft bag manufacturing technology, and in particular to a preheating structure for a circular interface tube. Background Technology

[0002] In the medical field, liquid medications such as intravenous infusions, nutritional solutions, and peritoneal dialysis solutions are usually packaged in soft bags. The tube is a crucial component of the soft bag, serving as the only channel for the medication to flow out and as the interface for connecting the infusion set or syringe for medication administration.

[0003] In related technologies, common tube openings include round tube openings and flat tube openings. In the production process of soft bags, the tube opening is usually preheated by pressing two preheating molds together to facilitate subsequent welding. However, for round tube openings, the preheating effect of the tube opening corresponding to the contact surface between the upper and lower preheating molds is poor, which can easily lead to weak tube opening welding. Utility Model Content

[0004] The purpose of this application is to provide a preheating structure for a circular interface tube, which can avoid uneven preheating of the circular interface tube and prevent the tube from being poorly welded.

[0005] To achieve the above objectives, this application provides a preheating structure for a circular interface tube, used for preheating the tube of a soft bag. The preheating structure for the circular interface tube includes:

[0006] The fixing component has mounting holes;

[0007] A preheating mold is provided in the assembly hole, the preheating mold has a mating hole, and the soft bag opening tube can extend into the mating hole and fit with the preheating mold;

[0008] A heating unit is provided on the preheating mold and is used to heat the preheating mold, thereby preheating the soft bag opening tube;

[0009] A rotating unit is provided on the fixed component. The rotating unit is used to drive the fixed component to rotate, thereby causing the preheating mold to rotate relative to the soft bag opening tube.

[0010] In some embodiments, a heat insulation plate is provided between the preheating mold and the fixing component, the heat insulation plate being used to isolate the preheating mold and the fixing component.

[0011] In some embodiments, there are at least two heat insulation plates, each of which is semi-circular, and the at least two heat insulation plates can be joined together to form a ring structure to wrap the preheating mold and the heating unit.

[0012] In some embodiments, a cooling plate is provided between the fixing component and the rotating unit, and the cooling plate is capable of cooling the fixing component.

[0013] In some embodiments, the cooling plate is provided with a cooling channel, and a cooling medium can be introduced into the cooling channel to cool the fixing component.

[0014] In some embodiments, the fixing component includes a first clamping plate and a second clamping plate, both of which are connected to the cooling plate. The first clamping plate and the second clamping plate can be joined together to form a stepped cylindrical structure. The mounting hole is located at the center of the stepped cylindrical structure, and the axis of the mounting hole is the rotation center of the fixing component.

[0015] In some embodiments, the rotating unit includes a rotating bracket and a first driving member, the first driving member being disposed on the rotating bracket and its output end being connected to the cooling plate.

[0016] In some embodiments, the rotating bracket is provided with a translation component, the translation component including a fixed plate and a second driving member, the second driving member being disposed on the fixed plate, the output end of the second driving member being connected to the rotating bracket, the second driving member being used to drive the rotating bracket to move, thereby causing the preheating mold to move closer to or away from the soft bag opening tube.

[0017] In some embodiments, the fixing plate is equipped with a support frame that can be installed on a soft bag production equipment.

[0018] In some embodiments, the heating unit is an electric heating wire, which is wound around the outer periphery of the preheating mold.

[0019] Compared to the aforementioned background technology, the circular interface tube preheating structure provided in this application embodiment is used to preheat the tube of a soft bag. Specifically, the circular interface tube preheating structure includes a fixing component, a preheating mold, a heating unit, and a rotating unit. The fixing component has an assembly hole, the preheating mold is a cylindrical structure, the preheating mold is installed in the assembly hole, and the preheating mold and the assembly hole are coaxially distributed. The preheating mold has a mating hole, which is coaxially distributed with the assembly hole. The heating unit is installed on the preheating mold and is used to heat the preheating mold. The rotating unit is located on the fixing component, thereby driving the fixing component to rotate. The rotation center of the fixing component is the center of the assembly hole, and when the fixing component rotates, it also drives the preheating mold to rotate, thereby causing the preheating mold to rotate around the center of the assembly hole. During preheating, the soft bag tube is inserted into the mating hole of the preheating mold, keeping the soft bag tube and the preheating mold coaxially distributed. The heating unit is started, and the rotating unit is started simultaneously, so that the preheating mold continuously rotates around the soft bag tube, indirectly heating the soft bag tube by heating the preheating mold. Understandably, by inserting the flexible bag opening tube into the assembly hole of the preheating mold, the preheating mold can heat the flexible bag opening tube from all directions during the heating process. Simultaneously, during heating, the rotating unit drives the fixed assembly to rotate continuously, causing the preheating mold to continuously rotate around the flexible bag opening tube. Even if there is uneven heating of the preheating mold by the heating unit, the flexible bag opening tube can be evenly heated by continuously rotating the preheating mold. In summary, when using the circular interface opening tube preheating structure of this application to preheat the flexible bag opening tube, the preheating mold can uniformly preheat the flexible bag opening tube, solving the problem of poor preheating effect at the opening tube portion corresponding to the contact surface between the upper and lower preheating molds in existing preheating equipment, which leads to weak welding of the opening tube and ensures the production quality of the flexible bag opening tube. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is an assembly drawing of the preheating structure for the circular interface tube provided in this application.

[0022] Figure 2 A schematic diagram showing the assembly of the preheating mold, heating unit, and heat insulation plate for the preheating structure of the circular interface tube provided in this application.

[0023] Figure 3 A schematic diagram showing the fit between the fixing components and the cooling plate of the preheating structure for the circular interface provided in this application.

[0024] in:

[0025] 100. Soft bag opening tube; 1. Fixing component; 11. First clamping plate; 12. Second clamping plate; 13. Assembly hole; 2. Preheating mold; 21. Mating hole; 22. Inspection hole; 3. Heating unit; 4. Rotating unit; 41. Rotating bracket; 42. First driving component; 5. Heat insulation plate; 6. Cooling plate; 7. Translation component; 71. Fixing plate; 72. Second driving component. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0029] like Figures 1 to 3 As shown, the circular interface tube preheating structure of this application is used to preheat the soft bag tube 100 to achieve uniform preheating of the soft bag tube 100. Specifically, the circular interface tube preheating structure includes a fixing component 1, a preheating mold 2, a heating unit 3, and a rotating unit 4. The fixing component 1 has an assembly hole 13. The preheating mold 2 is a cylindrical structure and is installed in the assembly hole 13. The preheating mold 2 and the assembly hole 13 are coaxially distributed. The preheating mold 2 has a mating hole 21, which is coaxially distributed with the assembly hole 13. The heating unit 3 is installed on the preheating mold 2 and is used to heat the preheating mold 2. The rotating unit 4 is located on the fixing component 1, thereby driving the fixing component 1 to rotate. The rotation center of the fixing component 1 is the center of the assembly hole 13. When the fixing component 1 rotates, it also drives the preheating mold 2 to rotate, thereby causing the preheating mold 2 to rotate around the center of the assembly hole 13. During preheating, the soft bag opening tube 100 is inserted into the mating hole 21 of the preheating mold 2, keeping the soft bag opening tube 100 and the preheating mold 2 coaxially distributed. The heating unit 3 is started, and the rotating unit 4 is started at the same time, so that the preheating mold 2 continuously rotates around the soft bag opening tube 100, and the soft bag opening tube 100 is indirectly heated by heating the preheating mold 2.

[0030] It is understandable that by inserting the soft bag opening tube 100 into the assembly hole 13 of the preheating mold 2, the preheating mold 2 can heat the soft bag opening tube 100 from all directions during the heating process. At the same time, during the heating process, the rotating unit 4 drives the fixing component 1 to rotate continuously, so that the preheating mold 2 rotates around the soft bag opening tube 100 continuously. Even if there is a problem of uneven heating of the preheating mold 2 by the heating unit 3, the soft bag opening tube 100 can be heated evenly by continuously rotating the preheating mold 2.

[0031] The above-mentioned setup can solve the problem of poor preheating effect at the contact surface of the two preheating molds 2 when they are pressed together, thereby avoiding poor local preheating effect of the soft bag opening tube 100 and thus avoiding poor welding of the opening tube.

[0032] Based on the above embodiments, in order to avoid the temperature of the fixing component 1 being too high during the preheating process, a heat insulation plate 5 is provided between the preheating mold 2 and the fixing component 1.

[0033] By setting a heat insulation plate 5 between the preheating mold 2 and the fixed component 1, the preheating mold 2 and the fixed component 1 are effectively isolated, preventing the heat from the heating unit 3 from being directly transferred to the fixed component 1 when heating the preheating mold 2, thus preventing the fixed component 1 from getting too hot. It can also effectively concentrate the heat, thereby reducing heat loss and improving energy utilization efficiency.

[0034] Based on any of the above embodiments, such as Figure 2 As shown, there are two heat insulation plates 5 in this application. The two heat insulation plates 5 are semi-circular structures with the same shape. The two heat insulation plates 5 can be spliced ​​together to form a ring structure. The two heat insulation plates 5 can wrap the preheating mold 2 and the heating unit 3. Then, the heat insulation plates 5 that wrap the preheating mold 2 and the heating unit 3 are installed in the assembly hole 13 of the fixing component 1.

[0035] In some embodiments, a cooling plate 6 is provided between the fixed component 1 and the rotating unit 4 to prevent the temperature of the fixed component 1 from rising and affecting the operation of the rotating unit 4. Preferably, the cooling plate 6 is disc-shaped and has an annular cooling channel inside. The side wall of the cooling plate 6 has an inlet and an outlet, both of which are connected to the cooling channel. A sealing plate is provided at both the inlet and the outlet, and the sealing plate is rotatably fitted on the side wall of the cooling plate 6. The sealing plate is used to close the inlet and the outlet. During the preheating process, the inlet is opened and a cooling medium is introduced into the cooling channel. The cooling medium can be cooling water, cooling oil, cold air, or other heat-absorbing medium. The cooling medium flows in the cooling channel and absorbs the heat emitted from the fixed component 1, thereby preventing the temperature of the rotating unit 4 from rising.

[0036] In some embodiments, such as Figure 3As shown, the fixing component 1 includes a first clamping plate 11 and a second clamping plate 12. The first clamping plate 11 and the second clamping plate 12 are fixedly connected to the cooling plate 6 by bolts. The first clamping plate 11 and the second clamping plate 12 can be assembled to form a stepped cylindrical structure. The assembly hole 13 is located at the center of the stepped cylindrical structure.

[0037] It is understandable that the larger diameter cylindrical structure in the stepped cylindrical structure has threaded holes, and the cooling plate 6 has corresponding threaded holes. When the first clamping plate 11 and the second clamping plate 12 are aligned with the cooling plate 6, the first clamping plate 11 and the second clamping plate 12 can be fixed to the cooling plate 6 by bolts. At the same time, the first clamping plate 11 and the second clamping plate 12 can be tightly clamped together to preheat the mold 2, so that the preheating mold 2 can be fixed in the assembly hole 13 formed by the first clamping plate 11 and the second clamping plate 12. The preheating structure of the circular interface tube using the above assembly method is easy to disassemble and assemble, and facilitates the later maintenance of the preheating structure of the circular interface tube.

[0038] In some embodiments, the rotating unit 4 includes a rotating bracket 41 and a first driving member 42. The first driving member 42 may be a rotary cylinder. The rotary cylinder is fixedly mounted on the rotating bracket 41. The output end of the rotary cylinder has an inwardly recessed groove. The inner sidewall of the groove is provided with a threaded structure. The cooling plate 6 is provided with an outwardly extending boss structure. The sidewall of the boss structure is also provided with a threaded structure. The boss structure of the cooling plate 6 can extend into the groove of the rotary cylinder output, and the two can be threadedly engaged, so that the cooling plate 6 can be fixed on the output end of the rotary cylinder.

[0039] In some other embodiments, the first driving member 42 may also be a rotating motor or a linkage structure. Specifically, the rotating motor may be fixedly mounted on the rotating bracket 41, and the output end of the rotating motor may be fixedly connected to the cooling plate 6, thereby driving the cooling plate 6 to rotate.

[0040] In some embodiments, the rotating bracket 41 is provided with a translation component 7, which drives the rotating bracket 41 to move, thereby moving the preheating mold 2 so that the preheating mold 2 can move closer to or further away from the soft bag opening tube 100. Specifically, the translation component 7 can be composed of a fixed plate 71 and a second driving member 72. The second driving member 72 can be a cylinder, which is fixedly mounted on the fixed plate 71. The rotating bracket 41 is fixedly connected to the output end of the second driving member 72, and the cylinder drives the rotating bracket 41 to move left and right. When the soft bag opening tube 100 needs to be preheated, the second driving member 72 first drives the rotating bracket 41 to move, so that the preheating mold 2 gradually moves closer to the soft bag opening tube 100. When the soft bag opening tube 100 extends into the mating hole 21 of the preheating mold 2, preheating can begin. After preheating, the second driving member 72 drives the rotating bracket 41 to move in the opposite direction, so that the preheating mold 2 moves away from the soft bag opening tube 100.

[0041] In some embodiments, a support frame is installed on the fixing plate 71. The support frame can be installed on the soft bag production equipment so that welding can be performed quickly after the soft bag opening tube 100 is preheated, thus avoiding the cooling of the soft bag opening tube 100.

[0042] In some embodiments, such as Figure 2 As shown, the heating unit 3 is an electric heating wire. The heating unit 3 is spirally wound around the outer periphery of the preheating mold 2, so as to heat the preheating mold 2 evenly and avoid uneven temperature of the preheating mold 2.

[0043] Specifically, the outer wall of the preheating mold 2 is provided with a detection hole 22, which extends radially along the preheating mold 2. A thermocouple fixing piece is fixedly installed in the detection hole 22. The first clamping plate 11 and the second clamping plate 12 are provided with through holes coaxially distributed with the detection hole 22, so that the thermocouple can pass through the through holes on the first clamping plate 11 or the second clamping plate 12 and extend into the detection hole 22, and be fixed by the thermocouple fixing piece. The thermocouple is used to monitor the temperature of the preheating mold 2, so as to avoid the temperature of the preheating mold 2 being lower or higher than its working temperature range, and to avoid insufficient preheating or damage to the soft bag tube 100.

[0044] In summary, when the preheating structure of the circular interface of this application is used to preheat the soft bag tube 100, the preheating mold 2 can preheat the soft bag tube 100 evenly, which solves the problem of poor tube welding caused by poor preheating effect of the tube part corresponding to the contact surface between the upper and lower preheating molds in the existing preheating equipment, and ensures the production quality of the soft bag tube 100.

[0045] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0046] The preheating structure of the circular interface tube provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A preheating structure for a circular interface tube, used for preheating a soft bag tube (100), characterized in that, The preheating structure of the circular interface includes: Fixing component (1), the fixing component (1) having mounting holes (13); A preheating mold (2) is provided in the assembly hole (13). The preheating mold (2) has a mating hole (21). The soft bag tube (100) can extend into the mating hole (21) and fit with the preheating mold (2). Heating unit (3), the heating unit (3) is provided on the preheating mold (2), and is used to heat the preheating mold (2); Rotating unit (4) is provided on the fixed component (1). The rotating unit (4) is used to drive the fixed component (1) to rotate so as to drive the preheating mold (2) to rotate relative to the soft bag opening tube (100).

2. The preheating structure for the circular interface according to claim 1, characterized in that, A heat insulation plate (5) is provided between the preheating mold (2) and the fixing component (1), and the heat insulation plate (5) is used to isolate the preheating mold (2) and the fixing component (1).

3. The preheating structure for the circular interface according to claim 2, characterized in that, There are at least two heat insulation plates (5), each of which is semi-circular. At least two heat insulation plates (5) can be joined together to form a ring structure to wrap the preheating mold (2) and the heating unit (3).

4. The preheating structure for the circular interface according to claim 1, characterized in that, A cooling plate (6) is provided between the fixed component (1) and the rotating unit (4), and the cooling plate (6) can cool down the fixed component (1).

5. The preheating structure for the circular interface according to claim 4, characterized in that, The cooling plate (6) is provided with a cooling channel, and a cooling medium can be introduced into the cooling channel to cool the fixed component (1).

6. The preheating structure for the circular interface according to claim 5, characterized in that, The fixing component (1) includes a first clamping plate (11) and a second clamping plate (12). Both the first clamping plate (11) and the second clamping plate (12) are connected to the cooling plate (6). The first clamping plate (11) and the second clamping plate (12) can be assembled to form a stepped cylindrical structure. The mounting hole (13) is located at the center of the stepped cylindrical structure, and the axis of the mounting hole (13) is the rotation center of the fixing component (1).

7. The preheating structure for the circular interface according to claim 6, characterized in that, The rotating unit (4) includes a rotating bracket (41) and a first driving member (42). The first driving member (42) is mounted on the rotating bracket (41), and its output end is connected to the cooling plate (6).

8. The preheating structure for the circular interface according to claim 7, characterized in that, The rotating bracket (41) is provided with a translation component (7). The translation component (7) includes a fixed plate (71) and a second driving member (72). The second driving member (72) is disposed on the fixed plate (71). The output end of the second driving member (72) is connected to the rotating bracket (41). The second driving member (72) is used to drive the rotating bracket (41) to move, thereby driving the preheating mold (2) to move closer to or away from the soft bag opening tube (100).

9. The preheating structure for the circular interface according to claim 8, characterized in that, The fixing plate (71) is equipped with a support frame, which can be installed on the soft bag production equipment.

10. The preheating structure for the circular interface according to any one of claims 1-9, characterized in that, The heating unit (3) is an electric heating wire, which is wound around the outer periphery of the preheating mold (2).

Images