Heat sealing device integrating punching type ramming and vacuum suction welding

Abstract

The utility model discloses a heat sealing device integrating punching type knockout and vacuum suction welding. The heat sealing device comprises a bottom plate, a punching female die, a punch, a pressing head and a heat sealing head. Wherein the punching female die is fixedly connected with the bottom plate, a first feeding channel allowing a base material to pass through is formed between the punching female die and the bottom plate, and a second feeding channel allowing a strip to pass through is formed in the upper end face of the punching female die; the punch is arranged above the punching female die and driven by the first driving piece to be used for being matched with the punching female die to complete punching of the strip. The pressure head is coaxially sleeved in the punch in a sliding manner, is provided with a negative pressure suction port and is driven by the second driving piece to move along the axis of the punch; the heat sealing head is arranged below the bottom plate and driven by a third driving piece to penetrate through the bottom plate to move towards the pressing head. And the pressure head is used for adsorbing the punched part in the punch area through the negative pressure suction port when the punch punches the strip, and is continuously used for continuously adsorbing the material punched by the punch and pressing the material to the surface of the heat sealing head for heat sealing with the base material after the punching is finished.

Description

Technical Field

[0001] This application relates to the field of heat sealing equipment technology, specifically a heat sealing device that integrates punching, vacuum suction, and welding. Background Technology

[0002] Adhesive dressings are a new type of external medical adjuvant material. They typically require heat-sealing a layer of absorbent material (usually absorbent cotton) onto a substrate to absorb and retain medication. During manufacturing, the absorbent cotton is cut into a predetermined shape and size and then heat-sealed onto the substrate. Currently, these dressings are produced mechanically. However, existing technologies usually involve a punching machine to cut the absorbent cotton strip into a single piece, and then a robotic arm or suction cup transfers the cut piece from the punching station to the heat-sealing station for heat-sealing and welding with the substrate. This method suffers from drawbacks such as complex mechanisms, large heat-sealing positioning deviations, and low production efficiency. Therefore, further research and development is necessary to solve this problem. Summary of the Invention

[0003] The purpose of this application is to provide a heat sealing device for vacuum suction welding with a punching type material feeding system, so as to solve the problems in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution: a heat-sealing device for vacuum suction welding with a punching-type material feeding mechanism, comprising:

[0005] Base plate 1;

[0006] The punching die 2 is fixedly connected to the base plate 1 and forms a first feeding channel 300 between the die and the base plate 1 for the passage of the substrate. The upper end face of the punching die 2 forms a second feeding channel 400 for the passage of the strip.

[0007] Punch 9 is located above the punching die 2 and is driven by the first driving member to cooperate with the punching die 2 to punch the strip.

[0008] The pressure head 10 is coaxially slidably sleeved inside the punch 9 and is provided with a negative pressure suction port 1001, and is driven by the second driving member to move along the axis of the punch 9;

[0009] The heat sealing head 14 is located below the base plate 1 and is driven by a third driving member to move through the base plate 1 toward the pressure head 10;

[0010] The pressure head 10 is used to adsorb the cut portion in the area of ​​the punch 9 through the negative pressure suction port 1001 when the punch 9 is cutting the strip, and after the punching is completed, it is used to continue to adsorb the material cut off by the punch 9 and press it onto the surface of the heat sealing head 14 to heat seal it with the substrate.

[0011] Furthermore, the first driving element includes:

[0012] The sliding plate 3 is movable relative to the punching die 2. The punch 9 is fixed to the side of the sliding plate 3 facing the punching die 2. The moving direction of the sliding plate 3 is perpendicular to the cutting edge surface of the punching die 2.

[0013] Furthermore, the first driving component also includes:

[0014] The top plate 4 is set at a parallel distance to the bottom plate 1;

[0015] The guide post 20 is fixedly connected to the top plate 4 and the bottom plate 1 at both ends; the sliding plate 3 is slidably sleeved on the guide post 20 and is guided by the guide post 20.

[0016] A punching cylinder 6 is mounted on the top plate 4, and the output end of the punching cylinder 6 passes through the top plate 4 and is connected to the sliding plate 3.

[0017] The punching die 2 is installed on the side of the base plate 1 facing the top plate 4.

[0018] Furthermore, the second driving element includes:

[0019] The support base 5 is fixed to the side of the sliding plate 3 away from the punching die 2;

[0020] The clamping cylinder 7 is mounted on the support base 5;

[0021] A hollow slide rod 17 passes through the sliding plate 3 and is coaxially slidably inserted into the punch 9. The lower end of the hollow slide rod 17 is connected to the pressure head 10, and the upper end is connected to the output end of the pressing cylinder 7.

[0022] Furthermore, the upper end of the hollow slide bar 17 is also provided with a negative pressure interface 19 that communicates with the negative pressure suction port 1001.

[0023] Furthermore, the first driving member also includes a punch plate 8 for pressing and fixing the punch 9 onto the sliding plate 3.

[0024] Furthermore, the punch 9 is provided with a cavity 901 for accommodating the pressure head 10. When the pressure head 10 retracts into the cavity 901, the punch 9 and the pressure head 10 are flush.

[0025] Furthermore, the hollow slide bar 17 is connected to the output end of the clamping cylinder 7 via a connecting plate 18.

[0026] Furthermore, the third driving element includes:

[0027] The lower bracket 12 is connected to the lower end of the base plate 1;

[0028] Heat-sealing cylinder 13 is installed on the lower bracket 12;

[0029] The heat sealing seat 11 is connected to the output end of the heat sealing cylinder 13, and the heat sealing head 14 is mounted on the heat sealing seat 11.

[0030] Furthermore, the top plate 4 has a second perforation 16 for the support base 5 and the pressing cylinder 7 to pass through, and the bottom plate 1 has a first perforation 15 for the heat sealing head 14 to pass through.

[0031] The beneficial effects of this application are as follows: The heat sealing device for vacuum suction welding of punched material provided in this application adopts a structure in which the punch and the pressure head are coaxially sleeved, and the pressure head is equipped with a negative pressure suction port. In this way, when punching the strip, the negative pressure suction port adsorbs the part to be punched in the punch area. On the one hand, it will not sink or deform during punching, ensuring that the material punched off the strip does not pull the strip and the cut is neat. On the other hand, the material punched off will not fall off the punch opening, ensuring that the position of the material punched off is stable. Furthermore, the pressure head continues to descend while adsorbing the material, and presses against the rising heat sealing head, so that the material can be heat-sealed with the substrate that enters from the first feeding channel and is located above the heat sealing head. The speed is fast and the heat sealing positioning is accurate, which is far superior to the prior art. Attached Figure Description

[0032] Figure 1 This is a perspective view of the heat sealing device for punching, vacuum feeding, and welding in this application;

[0033] Figure 2 This is a cross-sectional view of the heat sealing device for vacuum feeding and welding of punched materials, as described in this application.

[0034] In the diagram: 1. Base plate; 2. Punching die; 3. Sliding plate; 4. Top plate; 5. Support seat; 6. Punching cylinder; 7. Clamping cylinder; 8. Punch pressure plate; 9. Punch; 901. Cavity; 10. Pressure head; 1001. Negative pressure suction port; 11. Heat sealing seat; 12. Lower bracket; 13. Heat sealing cylinder; 14. Heat sealing head; 15. First hollow; 16. Second hollow; 17. Hollow slide rod; 18. Connecting plate; 19. Negative pressure interface; 20. Guide post; 300. First feeding channel; 400. Second feeding channel. Detailed Implementation

[0035] 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.

[0036] Please see Figure 1-2 A heat-sealing device integrating punching, vacuum suction, and welding, comprising: a base plate 1, a punching die 2, a punch 9, a pressure head 10, and a heat-sealing head 14; wherein:

[0037] The punching die 2 is fixedly connected to the base plate 1 and forms a first feeding channel 300 between them for the substrate to pass through. The upper end face of the punching die 2 forms a second feeding channel 400 for the strip to pass through. The punch 9 is located above the punching die 2 and is driven by a first driving member to cooperate with the punching die 2 to punch the strip. The pressure head 10 is coaxially slidably sleeved in the punch 9 and is provided with a negative pressure suction port 1001. It is driven by a second driving member to move along the axis of the punch 9. The heat sealing head 14 is located below the base plate 1 and is driven by a third driving member to move through the base plate 1 toward the pressure head 10. The pressure head 10 is used to adsorb the punched part in the area of ​​the punch 9 through the negative pressure suction port 1001 when the punch 9 punches the strip. After punching, it is used to continue to adsorb the material punched by the punch 9 and press it onto the surface of the heat sealing head 14 to heat seal with the substrate.

[0038] According to the structure provided in this embodiment, the heat sealing device for vacuum suction welding of punch type feeding provided in this application adopts a structure in which punch 9 and pressure head 10 are coaxially sleeved, and pressure head 10 is provided with negative pressure suction port 1001. In this way, when punching the strip, negative pressure suction port 1001 adsorbs the punched part in the area of ​​punch 9. On the one hand, it will not sink or deform during punching, ensuring that the material punched off the strip does not pull the strip and the cut is neat. On the other hand, the punched material will not fall off the opening of punch 9, ensuring that the position of the punched material is stable. In addition, pressure head 1001 The material is adsorbed and continues to descend, where it is pressed against the rising heat sealing head 14. This allows the material to be heat-sealed with the substrate that enters from the first feeding channel 300 and is located above the heat sealing head 14. The process is fast and the heat sealing positioning is precise. The first and second driving components form a compound motion structure for the punch 9 and the pressure head 10, which reduces the stroke of the punch 9, thereby reducing the wear between the punch 9 and the punching die 2. It also increases the return speed of the pressure head 10 (the return speed of the pressure head 10 is the superposition of the return speed of the first driving component and the return speed of the second driving component), thus improving production efficiency far superior to existing technologies.

[0039] Understandably, when the heat sealing device of this application is assembled onto the entire applicator, a traction component using existing technology is provided at the inlet and / or outlet of the first feeding channel 300 and the second feeding channel 400 to traction the substrate and the strip through the first feeding channel 300 and the second feeding channel 400 respectively according to a set rhythm and step distance. The portion of the strip after passing through the second feeding channel 400 becomes a waste edge, and the substrate forms a continuous product after passing through the first feeding channel 300.

[0040] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The first driving component includes a sliding plate 3; wherein the sliding plate 3 can move relative to the punching die 2, and the punch 9 is fixed on the side of the sliding plate 3 facing the punching die 2. The moving direction of the sliding plate 3 is perpendicular to the cutting edge surface of the punching die 2. In this way, multiple punches 9 can be set by the sliding plate 3 to realize the punching of multiple parts at one time, thereby improving production efficiency. In this embodiment, two punches 9 are set in the transverse direction of the strip travel direction. Therefore, the punching of two materials can be completed at one time, and the synchronization of the two punches 9 is good.

[0041] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The first driving component also includes: a top plate 4, a guide post 20, and a punching cylinder 6; wherein:

[0042] The top plate 4 and the bottom plate 1 are set at a parallel distance; the two ends of the guide post 20 are fixedly connected to the top plate 4 and the bottom plate 1 respectively; the sliding plate 3 is slidably sleeved on the guide post 20 and guided by the guide post 20; the punching cylinder 6 is installed on the top plate 4, and the output end of the punching cylinder 6 passes through the top plate 4 and is connected to the sliding plate 3; the punching die 2 is installed on the side of the bottom plate 1 facing the top plate 4; in this way, the sliding plate 3 can be accurately guided, thereby ensuring the movement accuracy of the punch 9 and the pressure head 10, thereby improving the punching and heat sealing accuracy and ensuring the quality of the product after heat sealing.

[0043] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The second driving component includes: a support base 5, a clamping cylinder 7, and a hollow slide rod 17; wherein,

[0044] Support base 5 is fixed to the side of sliding plate 3 away from punching die 2; clamping cylinder 7 is mounted on support base 5; hollow slide rod 17 passes through sliding plate 3 and is coaxially slidably inserted into punch 9, the lower end of hollow slide rod 17 is connected to pressure head 10, and the upper end is connected to the output end of clamping cylinder 7; through the above settings, clamping cylinder 7 can drive pressure head 10 to rise or fall independently through hollow slide rod 17, and at the same time, during return reset, the return speed of pressure head 10 is the superposition of the return speed of punching cylinder 6 and clamping cylinder 7, realizing rapid return reset and improving production efficiency; its working principle is as follows: firstly, clamping cylinder 7 drives pressure head 10 to rise and reset through hollow slide rod 17, and the opening of punch 9 and the opening of pressure head 10 are flush and in the reset state. When the substrate (not shown) and strip (not shown) enter through the first feed channel 300 and the second feed channel 400 respectively, punching cylinder 6 As the sliding plate 3 descends, the support base 5, which is mounted on the sliding plate 3, descends synchronously with the punch 9, including the support base 5, the clamping cylinder 7, the hollow slide rod 17, and the pressure head 10. Upon approaching the upper surface of the strip, the strip is firmly attracted by the negative pressure suction port 1001 of the pressure head 10 after the negative pressure is applied. Then, the pressure head 10 continues to descend with the punch 9. The punch 9 cooperates with the cutting edge of the punching die 2 to complete the punching action. At this time, the punching cylinder 6 reaches the set limit position and stops. The output end of the clamping cylinder 7 extends and pushes the pressure head 10 out of the punch 9 opening, pressing the material punched from the strip towards the heat sealing head 14. Simultaneously, the heat sealing head 14 moves upward, pressing the substrate towards the pressure head 10. When the pressure head 10 and the heat sealing head 14 are pressed together, the heat sealing action is completed. Then, the pressure head 10, the heat sealing head 14, and the punch 9 each reset, and the strip and substrate advance one step, thus repeating the cycle.

[0045] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The upper end of the hollow slide bar 17 is also provided with a negative pressure interface 19 that is connected to the negative pressure suction port 1001. In this way, an external negative pressure source can be connected to the negative pressure suction port 1001 through the negative pressure interface 19 to ensure that the negative pressure suction port 1001 has sufficient negative pressure suction force and ensure the reliability of the heat sealing device during operation.

[0046] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The first driving component also includes a punch plate 8 for pressing and fixing the punch 9 onto the sliding plate 3, so that the punch 9 can be easily replaced or installed. It is understood that the punch plate 8 is connected to the sliding plate 3 by fasteners, thereby pressing and fixing the punch 9 onto the sliding plate 3.

[0047] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2The punch 9 is provided with a cavity 901 for accommodating the pressure head 10. When the pressure head 10 retracts into the cavity 901, the punch 9 and the pressure head 10 are flush. Thus, after the punch 9 and the pressure head 10 are reset, the strip can smoothly advance through the second feed channel 400. Of course, due to the limitations of the processing technology, the distance by which the opening of the pressure head 10 protrudes beyond the opening of the punch 9 is also allowed within the range of process requirements.

[0048] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The hollow slide bar 17 is connected to the output end of the clamping cylinder 7 through the connecting plate 18. In this way, through the expansion function of the connecting plate 18, it is convenient to set the hollow slide bar 17 to match the number of punches 9. In this embodiment, two hollow slide bars 17 are provided to match the punches 9.

[0049] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The third driving component includes: a lower bracket 12, a heat-sealing cylinder 13, and a heat-sealing seat 11; wherein:

[0050] The lower bracket 12 is connected to the lower end of the base plate 1; the heat sealing cylinder 13 is installed on the lower bracket 12; the heat sealing seat 11 is connected to the output end of the heat sealing cylinder 13, and the heat sealing head 14 is installed on the heat sealing seat 11. In this way, a stable driving force and driving stroke can be provided for the heat sealing head 14 to ensure the heat sealing welding quality.

[0051] In another embodiment of this application, please refer to [the relevant document / reference]. Figure 1 and Figure 2 The top plate 4 has a second perforation 16 for the support base 5 and the pressing cylinder 7 to pass through, and the bottom plate 1 has a first perforation 15 for the heat sealing head 14 to pass through. In this way, mechanical interference of related parts can be avoided, and the volume of the whole device can be effectively reduced, making the whole device compact.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0055] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing device for integrated punching, vacuum suction, and welding, characterized in that, include: Base plate (1); The punching die (2) is fixedly connected to the base plate (1) and forms a first feeding channel (300) between the die and the base plate (1) for the substrate to pass through. The upper end face of the punching die (2) forms a second feeding channel (400) for the strip to pass through. A punch (9) is located above the punching die (2) and is driven by a first driving member to cooperate with the punching die (2) to punch the strip. The pressure head (10) is coaxially slidably sleeved inside the punch (9) and is provided with a negative pressure suction port (1001), and is driven by the second driving member to move along the axis of the punch (9); A heat sealing head (14) is located below the base plate (1) and is driven by a third driving member to move through the base plate (1) toward the pressure head (10); The pressure head (10) is used to adsorb the cut portion in the area of ​​the punch (9) through the negative pressure suction port (1001) when the punch (9) cuts the strip, and after the punching is completed, it is used to continue to adsorb the material cut by the punch (9) and press it onto the surface of the heat sealing head (14) to heat seal with the substrate.

2. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 1, characterized in that, The first driving element includes: The sliding plate (3) is movable relative to the punching die (2), the punch (9) is fixed to the side of the sliding plate (3) facing the punching die (2), and the moving direction of the sliding plate (3) is perpendicular to the cutting edge of the punching die (2).

3. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 2, characterized in that, The first driving component further includes: The top plate (4) is set at a parallel distance to the bottom plate (1); The guide post (20) is fixedly connected to the top plate (4) and the bottom plate (1) at both ends respectively; the sliding plate (3) is slidably sleeved on the guide post (20) and is guided by the guide post (20); A punching cylinder (6) is mounted on the top plate (4), and the output end of the punching cylinder (6) passes through the top plate (4) and is connected to the sliding plate (3); The punching die (2) is installed on the side of the base plate (1) facing the top plate (4).

4. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 3, characterized in that, The second driving element includes: The support base (5) is fixed to the side of the sliding plate (3) away from the punching die (2); A clamping cylinder (7) is mounted on the support base (5); A hollow slide rod (17) passes through the sliding plate (3) and is coaxially slidably inserted into the punch (9). The lower end of the hollow slide rod (17) is connected to the pressure head (10), and the upper end is connected to the output end of the pressing cylinder (7).

5. The heat-sealing device for vacuum suction welding of punched feeders according to claim 4, characterized in that: The upper end of the hollow slide bar (17) is also provided with a negative pressure interface (19) which is connected to the negative pressure suction port (1001).

6. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 2, characterized in that: The first drive unit also includes a punch plate (8) for pressing and fixing the punch (9) onto the sliding plate (3).

7. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 1, characterized in that: The punch (9) is provided with a cavity (901) for accommodating the pressure head (10). When the pressure head (10) retracts into the cavity (901), the punch (9) and the pressure head (10) are flush.

8. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 4, characterized in that: The hollow slide bar (17) is connected to the output end of the clamping cylinder (7) via a connecting plate (18).

9. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 1, characterized in that, The third driving component includes: The lower bracket (12) is connected to the lower end of the base plate (1); A heat-sealing cylinder (13) is installed on the lower bracket (12); A heat sealing seat (11) is connected to the output end of the heat sealing cylinder (13), and a heat sealing head (14) is installed on the heat sealing seat (11).

10. The heat-sealing device for vacuum suction welding of punch-type material feeding according to claim 4, characterized in that, The top plate (4) has a second perforation (16) for the support base (5) and the pressing cylinder (7) to pass through, and the bottom plate (1) has a first perforation (15) for the heat sealing head (14) to pass through.

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