Medicine bag welding mold

Abstract

This utility model relates to the field of pharmaceutical bag processing technology, and provides a pharmaceutical bag welding mold, including a base plate. A lower mold is fixedly installed on one side of the upper end of the base plate, and a limiting seat is fixedly installed on the other side of the upper end of the base plate. An internal mold is movably arranged on the upper end of the lower mold and the limiting seat. The internal mold includes a support column, and a limiting block is fixedly connected to one end of the support column. The beneficial effects of this utility model are: by applying force through the top ear, the end face of the top plate acts evenly on the non-welded end of the pharmaceutical tube, and the guiding force of the sleeve inclined groove is used to smoothly push the pharmaceutical tube out from the support column, avoiding the direct tensile force on the weld joint, effectively protecting the integrity and mechanical properties of the weld joint, reducing quality problems such as deformation, cracking or decreased airtightness caused by improper force, improving the finished product qualification rate, and avoiding the risk of burns and cuts to the operator's hands, thus improving the safety and comfort of the operation process.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical bag processing technology, specifically to a pharmaceutical bag welding mold. Background Technology

[0002] In the field of drug bag processing technology, the welding process between drug bags and drug tubes requires the use of molds to achieve precise positioning and stable support. Existing molds, through structural combinations such as base plates, upper and lower molds, limit seats, and internal molds, can meet the basic positioning requirements during drug bag welding and have been widely used in medical product manufacturing.

[0003] In existing technologies, the welding process between the liquid bag and the liquid tube is positioned and supported by a mold. However, after welding, the traditional demolding method usually pulls the tube out by applying force to the end of the support column. This operation causes the weld to be passively subjected to tensile force. Since the material at the weld has just finished melting and solidifying and its mechanical properties have not yet stabilized, direct force may cause deformation, cracking, or reduced airtightness of the weld joint, increasing quality risks and production costs. Furthermore, there is a certain risk of high-temperature contact when the operator holds the area of ​​the liquid bag for demolding. Utility Model Content

[0004] The purpose of this invention is to provide a welding mold for medicine bags to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medicine bag welding mold, including a base plate, a lower mold fixedly installed on one side of the upper end of the base plate, a limiting seat fixedly installed on the other side of the upper end of the base plate, and an internal mold movably arranged on the upper end of the lower mold and the limiting seat;

[0006] The built-in mold includes a support column, a limit block is fixedly connected to one end of the support column, a support block is fixedly connected to the middle of the support column, a return spring is fixedly connected to one side of the support block, a top plate is fixedly connected to the other end of the return spring, the top plate is slidably connected to the support column, two top ears are fixedly connected to the outer wall of the top plate, a sleeve is fixedly connected to one side of the top plate, a slanted groove is opened on one side of the sleeve, two guide rods are slidably connected to the support block, one end of the two guide rods is fixedly connected to the top plate, and the other end of the two guide rods is fixedly connected to a protective plate, the protective plate is slidably connected to the support column.

[0007] Preferably, the support column is made of stainless steel, and the outer diameter of the support column is smaller than the inner diameter of the medicine tube.

[0008] Preferably, the support column has a gap of ≥1mm between its outer diameter and the inner diameter of the sleeve, and the sleeve has a length of ≥5mm.

[0009] Preferably, the inclination angle of the inclined groove is 30°-60°.

[0010] Preferably, the protective plate is made of rubber and has a scratch-resistant coating on its surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by applying force through the top ear, the end face of the top plate acts evenly on the non-welded end of the liquid tube, and the guiding force of the sleeve groove is used to smoothly push the liquid tube out from the support column, avoiding the direct tensile force on the welded joint, effectively protecting the integrity and mechanical properties of the welded joint, reducing quality problems such as deformation, cracking or reduced airtightness caused by improper force, improving the finished product qualification rate, and avoiding the risk of burns and cuts to the operator's hands, thus improving the safety and comfort of the operation process. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model;

[0013] Figure 2 This is a structural disassembly diagram of the present invention;

[0014] Figure 3 This is a structural diagram of the built-in mold of this utility model;

[0015] Figure 4 This is a cross-sectional view of the top plate structure of this utility model.

[0016] In the diagram: 1. Base plate; 2. Lower mold; 3. Limiting seat; 4. Support column; 5. Limiting block; 6. Support block; 7. Return spring; 8. Top plate; 9. Top lug; 10. Sleeve; 11. Inclined groove; 12. Guide rod; 13. Protective plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 The present invention provides the following technical solution:

[0019] Example 1: A welding mold for a medicine bag includes a base plate 1. A lower mold 2 is fixedly installed on one side of the upper end of the base plate 1, and a limiting seat 3 is fixedly installed on the other side of the upper end of the base plate 1. An internal mold is movably arranged on the upper end of the lower mold 2 and the limiting seat 3. The internal mold includes a support column 4. A limiting block 5 is fixedly connected to one end of the support column 4. A support block 6 is fixedly connected in the middle of the support column 4. A return spring 7 is fixedly connected to one side of the support block 6. A top plate 8 is fixedly connected to the other end of the return spring 7. The top plate 8 is slidably connected to the support column 4. Two top ears 9 are fixedly connected to the outer wall of the top plate 8. A sleeve 10 is fixedly connected to one side of the top plate 8. A slanted groove 11 is opened on one side of the sleeve 10. Two guide rods 12 are slidably connected to the support block 6. One end of the two guide rods 12 is fixedly connected to the top plate 8. The other end of the two guide rods 12 is fixedly connected to a protective plate 13. The protective plate 13 is slidably connected to the support column 4.

[0020] In use, one end of the liquid tube is fitted onto the outer wall of the support column 4, ensuring that the tube opening is aligned with the welding area of ​​the lower mold 2. The welding port of the liquid bag is fitted onto the outer wall of the liquid tube. The position is adjusted so that the edge of the bag covers the welding surface of the lower mold 2 for welding. After welding, the entire internal mold is lifted. The thumb and forefinger of one hand press against the top lug 9, and the other hand holds the support column 4. The squeezed top lug 9 then drives the top plate 8 and sleeve 10 to slide towards one end of the support column 4. At the same time, the top plate 8 stretches the return spring 7. During the movement, the sleeve 10 is fitted onto the outer wall of the liquid tube through the inclined groove 11. At the same time, the top plate 8 applies pressure to the end face of the liquid tube. The liquid tube squeezed by the top plate 8 separates from the support column 4. During the movement of the top plate 8, the guide rod 12 slides along the support block 6 to ensure that the top plate 8 slides vertically along the support column 4, avoiding instability caused by the tilting of the top plate 8 and the sleeve 10 when pressed by the fingers. The protective plate 13 moves synchronously with the top plate 8 to protect the rear end of the guide rod 12 and prevent scratches to the operator.

[0021] Example 2: This example differs from Example 1 in that the support column 4 is made of stainless steel, the outer diameter of the support column 4 is smaller than the inner diameter of the liquid tube, the gap between the outer diameter of the support column 4 and the inner diameter of the sleeve 10 is ≥1mm, the length of the sleeve 10 is ≥5mm, the inclination angle of the inclined groove 11 is 30°-60°, and the protective plate 13 is made of rubber with a scratch-resistant coating on the surface.

[0022] In use, one end of the liquid tube is fitted onto the outer wall of the stainless steel support column 4. Since the outer diameter of the support column 4 is smaller than the inner diameter of the liquid tube, the fitting can be easily completed. Because the gap between the outer diameter of the support column 4 and the inner diameter of the sleeve 10 is ≥1mm and the length of the sleeve 10 is ≥5mm, the sleeve 10 can smoothly pass through the inclined groove 11 and fit onto the outer wall of the liquid tube during movement. The inclined angle of the inclined groove 11 is 30°-60°, which makes it easier and more stable for the sleeve 10 to fit into the liquid tube. When the protective plate 13 moves synchronously with the top plate 8, it can effectively protect the rear end of the guide rod 12 to avoid scratching the operator. At the same time, the elasticity of the rubber material can buffer the impact force during movement to a certain extent, improving the safety and comfort of operation.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding mold for a medicine bag, including a base plate (1), a lower mold (2) is fixedly installed on one side of the upper end of the base plate (1), a limiting seat (3) is fixedly installed on the other side of the upper end of the base plate (1), and an internal mold is movably provided on the upper end of the lower mold (2) and the limiting seat (3); Its features are: The built-in mold includes a support column (4), one end of which is fixedly connected to a limit block (5), a support block (6) is fixedly connected in the middle of the support column (4), a return spring (7) is fixedly connected to one side of the support block (6), and a top plate (8) is fixedly connected to the other end of the return spring (7). The top plate (8) is slidably connected to the support column (4), and two top ears (9) are fixedly connected to the outer wall of the top plate (8). A sleeve (10) is fixedly connected to one side of the top plate (8), and a slanted groove (11) is opened on one side of the sleeve (10). Two guide rods (12) are slidably connected to the support block (6). One end of the two guide rods (12) is fixedly connected to the top plate (8), and the other end of the two guide rods (12) is fixedly connected to a protective plate (13). The protective plate (13) is slidably connected to the support column (4).

2. The welding mold for the liquid medicine bag according to claim 1, characterized in that: The support column (4) is made of stainless steel, and the outer diameter of the support column (4) is smaller than the inner diameter of the liquid tube.

3. The welding mold for the liquid medicine bag according to claim 1, characterized in that: The support column (4) has a gap of ≥1mm between its outer diameter and the inner diameter of the sleeve (10), and the sleeve (10) has a length of ≥5mm.

4. The welding mold for the liquid medicine bag according to claim 1, characterized in that: The inclination angle of the inclined groove (11) is 30°-60°.

5. The welding mold for the liquid medicine bag according to claim 1, characterized in that: The protective plate (13) is made of rubber and has a scratch-resistant coating on its surface.

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