A delivery device for producing a medical air mattress

Abstract

The utility model relates to air cushion production technical field, specifically disclose a conveying device for producing medical air cushion can be used with high frequency welding mechanism, cutting mechanism, blanking mechanism, constitute a kind of medical air cushion production equipment, can be used for producing medical air cushion, utilize the conveying device of the present application, can realize automation conveying, to integrate welding, cutting, blanking procedure on the same equipment, can obviously improve production efficiency;Positioning needle is arranged on carrier, staff first places the film material with middle positioning hole and edge positioning hole on carrier, makes middle positioning hole alignment insertion positioning needle, then folds two side edges of film material to middle, makes edge positioning hole alignment insertion positioning needle, positioning effect is passed to positioning needle, makes the film material folding back can keep stable folding state, need not use glue or double-faced adhesive fixed, operation is simpler, and processing efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of air cushion production technology, and in particular to a conveying device for producing medical air cushions. Background Technology

[0002] Medical air cushions are cushions that can be inflated with air. When placed under pressure points on bedridden patients, they can relieve pressure, prevent pressure sores, promote blood circulation, reduce pain, and promote sleep.

[0003] Medical air cushions are typically made from PVC film, rubber film, or other film materials through folding, heat melting, and cutting. The conventional production method is to first fold the film material in half so that the heat-melting bonding positions of the film material overlap, then put it into a heat-melting machine, and use heat pressing to bond the heat-melting bonding positions of the film material together, and then transfer it to a cutting machine for edge trimming.

[0004] In existing technologies, if the membrane material is not secured after folding, misalignment can easily occur during the subsequent heat fusion process. The common practice is to first apply adhesive or double-sided tape to the heat fusion bonding area of ​​the membrane material, then fold the membrane material in half to align the bonding areas, and then manually feed it into a heat fusion machine. The heat is then used to bond the membrane material together, and finally, it is manually transferred to a cutting machine for edge trimming. This method is extremely inconvenient and has low production efficiency.

[0005] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a medical air cushion production equipment to solve the problems of low efficiency of manual transfer in the production of medical air cushions, which require adhesive to fix the film material.

[0007] A conveying device for producing medical air cushions includes a machine base and a conveying mechanism disposed on the machine base. The conveying mechanism includes multiple carriers that are circulated along the x-direction. Each carrier is provided with a groove corresponding to the shape of the medical air cushion, and positioning pins are provided on both sides of the groove along the y-direction.

[0008] Specifically, the conveying mechanism further includes a first driving device fixed to one side of the machine base, a sprocket connected to the output end of the first driving device, an annular chain meshing with the sprocket, and a connecting frame spaced apart on the outside of the annular chain, with the carrier fixed to the connecting frame.

[0009] Specifically, the inner side of the machine tool is provided with a first support plate for supporting the annular chain and a second support plate for supporting the carrier.

[0010] Specifically, the carrier is provided with two grooves, which are arranged side by side along the x-direction.

[0011] Specifically, the vehicle is also provided with four limiting posts, which are distributed around the two grooves.

[0012] Specifically, the upper part of the machine platform is provided with L-shaped limiting plates on both sides along the y direction, and the carrier moves between the two L-shaped limiting plates along the x direction.

[0013] Specifically, the upper part of the machine platform is provided with multiple sensors spaced apart along the x-direction, which are used to sense the limiting post.

[0014] The beneficial effects of this utility model are:

[0015] The conveying device of this utility model can be used in conjunction with a high-frequency welding mechanism, a cutting mechanism, and a feeding mechanism to form a medical air cushion production equipment. It can be used to produce medical air cushions. Using the conveying device of this application, automated conveying can be achieved, thereby integrating the welding, cutting, and feeding processes into the same equipment, which can significantly improve production efficiency. The carrier is equipped with positioning pins. The operator first places the film material with the central positioning hole and the edge positioning hole on the carrier, aligns the central positioning hole and inserts the positioning pin, and then folds the two sides of the film material towards the center, aligns the edge positioning holes and inserts the positioning pin. Through the positioning action of the positioning pins, the film material can maintain a stable folded state after folding, without the need for glue or double-sided tape to fix it, making the operation simpler and the processing efficiency higher. Attached Figure Description

[0016] Figure 1 This is a perspective view of the conveying device of this application;

[0017] Figure 2 for Figure 1 Enlarged view of section C;

[0018] Figure 3 This is a top view of the conveying device of this application;

[0019] Figure 4 for Figure 3 Cross-sectional view of the DD plane;

[0020] Figure 5 This is a schematic diagram of a medical air cushion formed by folding, high-frequency welding, and cutting the membrane material on the carrier.

[0021] Figure 6 This is a perspective view of the medical air cushion production equipment according to an embodiment of this application;

[0022] Figure 7 This is a top view of the medical air cushion production equipment according to an embodiment of this application;

[0023] Figure 8 for Figure 7 Cross-sectional view of surface AA;

[0024] Figure 9 for Figure 8 Enlarged view of section B;

[0025] Figure 10 Three-dimensional representation of the high-frequency welding mechanism in this application embodiment Figure 1 ;

[0026] Figure 11 Three-dimensional representation of the high-frequency welding mechanism in this application embodiment Figure 2 ;

[0027] Figure 12 This is a perspective view of the cutting mechanism according to an embodiment of this application;

[0028] Figure 13 This is a perspective view of the feeding mechanism in an embodiment of this application.

[0029] The attached figures are labeled as follows: machine base 10, conveying mechanism 20, high-frequency welding mechanism 30, cutting mechanism 40, unloading mechanism 50, carrier 21, groove 211, positioning pin 212, pressing head 31, cutter 41, gripper 51, stacking rack 52, membrane material 61, medical air cushion 62, first drive device 22, sprocket 23, ring chain 24, connecting frame 25, first support plate 11, second support plate 12, limiting post 213, first mounting post 32, first top plate 33, second drive device 34, first pressure plate 35, upper electrode plate 36, lower electrode plate 37, power supply. Box 38, grounding module 70, conductive connection plate 71, conductive contact 72, grounding plate 73, height adjustment structure 80, mounting hole 81, bolt 82, guide rod 39, second mounting column 42, second top plate 43, third drive device 44, second pressure plate 45, pressure mold 46, gantry frame 53, first guide rail 54, first slider 55, fourth drive device 56, L-shaped frame 57, second slider 58, second guide rail 59, fifth drive device 510, base frame 511, suction cup 512, cooling buffer 90, L-shaped limit plate 26, sensor 27. Detailed Implementation

[0030] This utility model provides a conveying device for producing medical air cushions. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0032] like Figures 1 to 5 This embodiment discloses a conveying device for producing medical air cushions, including a machine base 10 and a conveying mechanism 20 disposed on the machine base 10. The conveying mechanism 20 includes a plurality of carriers 21 that are circulated along the x-direction. Each carrier 21 is provided with a groove 211 that corresponds to the shape of the medical air cushion 62. Positioning pins 212 are provided on both sides of the groove 211 along the y-direction.

[0033] The specific steps are as follows: Figure 5 As shown, the operator first places the membrane material 61 with the central positioning hole and the edge positioning hole on the carrier 21, aligns the central positioning hole and inserts the positioning pin 212, and then folds the two sides of the membrane material 61 towards the center, aligns the edge positioning holes and inserts the positioning pin 212. Through the positioning action of the positioning pin 212, the membrane material 61 can maintain a stable folded state after being folded, without the need to use glue or double-sided tape for fixing, making the operation simpler and the processing efficiency higher.

[0034] The conveying device in this embodiment can be used in conjunction with the high-frequency welding mechanism 30, the cutting mechanism 40, and the unloading mechanism 50 to form a... Figures 6 to 13 The medical air cushion production equipment shown can be used to produce medical air cushions 62. Through the conveying device of this embodiment, automated conveying can be achieved, thereby integrating the welding, cutting and unloading processes into the same equipment, which can significantly improve production efficiency.

[0035] Specifically, a high-frequency welding mechanism 30, a cutting mechanism 40, and a feeding mechanism 50 are sequentially arranged above the conveying mechanism 20 along the conveying direction. The high-frequency welding mechanism 30 includes a pressing head 31 that can be pressed into the groove 211 along the z-direction, and the shape of the pressing head 31 corresponds to the groove 211. The cutting mechanism 40 includes a cutter 41 that can be pressed into the groove 211 along the z-direction, and the shape of the cutter 41 corresponds to the outer contour of the groove 211. The feeding mechanism 50 includes a gripper 51 that can move along the y-direction and z-direction above the carrier 21 and a stacking rack 52 located on one side of the machine platform along the y-direction. The gripper 51 can grip the medical air cushion 62 obtained by cutting in the groove 211 and transfer it to the stacking rack 52.

[0036] The medical air cushion production equipment composed of the conveying device, high-frequency welding mechanism 30, cutting mechanism 40, and unloading mechanism 50 in this embodiment can be used to produce medical air cushions 62, such as... Figure 5As shown, after the worker fixes the membrane material 61 onto the carrier 21, the conveying mechanism 20 starts, transporting the carrier 21 containing the membrane material 61 to below the pressing head 31 of the high-frequency welding mechanism 30. The conveying mechanism 20 stops, and the high-frequency welding mechanism 30 starts, converting electrical energy into high-frequency electromagnetic field energy. The electromagnetic field acts on the membrane material 61 to be welded. Under the action of the electromagnetic field, the molecules on the surface of the membrane material 61 will be subjected to strong vibration and friction, thereby generating heat, causing the membrane material 61 to reach its melting point in a short time. Once the membrane material 61 reaches its melting point, the high-frequency welding begins. The pressing head 31 of mechanism 30 will quickly apply pressure, so that the membrane material 61 will further contact and form a weld in the molten state; the conveying mechanism 20 continues to convey, and conveys the carrier 21 to the underside of the cutter 41 of the cutting mechanism 40. The conveying mechanism 20 stops conveying and uses the cutter 41 to cut off the edge of the membrane material 61 to obtain the medical air cushion 62; the conveying mechanism 20 continues to convey, and conveys the carrier 21 to the underside of the gripper 51 of the unloading mechanism 50. The conveying mechanism 20 stops conveying and uses the gripper 51 to grab the medical air cushion 62 on the carrier 21 and transfer it to the stacking rack 52.

[0037] Furthermore, this embodiment employs a high-frequency welding mechanism 30 as the welding device. A high electric field causes the molecules on the surface of the film material 61 to undergo intense vibration and friction, generating heat and allowing the film material 61 to reach its melting point in a short time, thus achieving the welding purpose. Compared to traditional hot pressing methods, high-frequency welding offers a stable output frequency. This stability ensures the reliability and consistency of the welding process, improving production efficiency. High-frequency welding is suitable for various plastic and rubber products, including soft and hard plastics such as pure PVC, TPU, and EVA, as well as artificial leather and clothing fabrics, with excellent heat-sealing and welding effects.

[0038] For further details, please refer to... Figures 3 to 4 The conveying mechanism 20 also includes a first drive device 22 fixed to one side of the machine base 10, a sprocket 23 connected to the output end of the first drive device 22, an annular chain 24 meshing with the sprocket 23, and a connecting frame 25 spaced apart on the outside of the annular chain 24. The carrier 21 is fixed to the connecting frame 25. The first drive device 22 can be a geared motor, which has high control precision and high transmission efficiency. After the first drive device 22 is started, it drives the sprocket 23 to rotate, thereby driving the annular chain 24 to move cyclically in the x direction. The connecting frame 25 is spaced apart on the outside of the annular chain 24. The carrier 21 is fixed to the connecting frame 25, thus driving the carrier 21 to cyclically convey along the x direction.

[0039] In this embodiment, a sprocket 23 and a ring chain 24 are used for conveying. The sprocket 23 drive has high transmission efficiency, and the chain drive also has high transmission efficiency, accurate average transmission ratio, and reliable operation. Moreover, the sprocket 23 drive can withstand large loads and is suitable for high-power transmission. For a carrier 21 with a certain mass, the chain drive also has high load-bearing capacity, large power transmission capacity, and strong overload capacity.

[0040] For further details, please refer to... Figure 4 The inner side of the machine base 10 is provided with a first support plate 11 for supporting the ring chain 24. Since the ring chain 24 is long, it is difficult to tighten the ring chain 24 by relying solely on the sprockets 23 at both ends of the ring chain 24. Therefore, the first support plate 11 is provided. By utilizing the supporting effect of the first support plate 11, the middle position of the ring chain 24 can be prevented from sinking downward, ensuring that the ring chain 24 can move stably in a circular motion.

[0041] For further details, please refer to... Figure 1 and Figure 2 In this embodiment, the machine base 10 is provided with a second support plate 12 for supporting the carrier 21. The second support plate 12 supports the bottom of both ends of the carrier 21 along the y direction, so that the carrier 21 can remain stable when the high-frequency welding mechanism 30 and the cutting mechanism 40 apply pressure to the film material 61 on the carrier 21, thus ensuring the smooth progress of welding and cutting.

[0042] For further details, please refer to... Figure 1 and Figure 2 In this embodiment, the carrier 21 is provided with two grooves 211, which are arranged side by side along the x-direction. By providing two grooves 211, two medical air cushions 62 can be produced at the same time, thereby improving production efficiency.

[0043] For further details, please refer to... Figure 1 and Figure 2 The carrier 21 is also equipped with four limiting posts 213. The four limiting posts 213 are distributed around the two grooves 211. The membrane material 61 is pre-positioned by the four limiting posts 213, so that the workers can find the middle positioning hole of the membrane material 61 more quickly, and then insert the positioning pin 212 into the middle positioning hole, thereby improving the efficiency of the workers to install the membrane material 61 on the carrier 21.

[0044] Furthermore, L-shaped limiting plates 26 are provided on both sides of the upper end of the machine 10 along the y direction. The carrier 21 moves between the two L-shaped limiting plates 26 along the x direction. Through the limiting effect of the two L-shaped limiting plates 26, the carrier 21 is prevented from deviating, ensuring the accuracy of subsequent high-frequency welding and cutting.

[0045] Furthermore, the upper end of the machine base 10 is provided with multiple sensors 27 spaced apart along the x-direction. The sensors 27 are used to sense the limiting posts 213. The sensors 27 can be set on one side of the high-frequency welding mechanism 30, the cutting mechanism 40, and the unloading mechanism 50. By sensing the upward protruding limiting posts 213 through the sensors 27, the sensing signal is fed back to the control system, and then the control system sends a signal to the conveying mechanism 20 to stop conveying, thereby ensuring the conveying accuracy of the carrier 21.

[0046] Please refer to Figure 10 and Figure 11 The high-frequency welding mechanism 30 of this embodiment also includes a first mounting column 32 fixed to the machine base 10, a first top plate 33 fixed to the first mounting column 32, a second driving device 34 fixed to the first top plate 33 and drivable along the z-direction, a first pressure plate 35 fixed to the output end of the second driving device 34, an upper electrode plate 36 fixed to the lower end of the first pressure plate 35, a lower electrode plate 37 fixed to the lower end of the upper electrode plate 36, a power supply box 38 for supplying power to the upper electrode plate 36 and the lower electrode plate 37, and a pressing head 31 fixed to the lower end of the lower electrode plate 37; when the conveying mechanism 20 conveys the carrier 21 with the film material 61 to the area below the pressing head 31... First, the second driving device 34 drives the pressing head 31 to descend to a certain height, so that the pressing head 31 contacts the membrane material 61, but does not apply pressure. Then, the power supply box 38 supplies power to the upper electrode plate 36 and the lower electrode plate 37. After the upper electrode plate 36 and the lower electrode plate 37 are energized, they generate high-frequency electromagnetic field energy. Under the action of the electromagnetic field, the molecules on the surface of the membrane material 61 will be subjected to strong vibration and friction, thereby generating heat and causing the membrane material 61 to reach the melting point in a short time. After the membrane material 61 reaches the melting point, the second driving device 34 drives the pressing head 31 to apply downward pressure, so that the membrane material 61 can further contact and form a weld in the molten state, with high welding efficiency.

[0047] In addition, since the temperature of the membrane material 61 is high after high-frequency welding, in order to allow the membrane material 61 to be cooled down before the next cutting action, a cooling buffer zone 90 is provided between the high-frequency welding mechanism 30 and the cutting mechanism 40 in this embodiment.

[0048] Because the power supply box 38 outputs a high voltage, the high-frequency welding mechanism 30 is prone to leakage during the welding process. Therefore, please refer to... Figure 9 and Figure 10The medical air cushion production equipment in this embodiment also includes a grounding module 70. The grounding module 70 includes a conductive connecting plate 71 connected to one side of the upper electrode plate 36 along the x-direction, a conductive contact 72 fixed to the lower end of the conductive connecting plate 71, and a grounding plate 73 disposed inside the machine base 10 and electrically connected to the machine base 10. When the upper electrode plate 36 is pressed down, it will drive the conductive connecting plate 71 and the conductive contact 72 to move down, so that the conductive contact 72 contacts the grounding plate 73. The grounding plate 73 is electrically connected to the metal shell of the machine base 10, and the metal shell of the machine base 10 is connected to the earth, thereby forming a good ground and avoiding leakage.

[0049] Furthermore, the grounding plate 73 is located inside the machine base 10, and when the conveying mechanism 20 conveys the carrier 21 with the film material 61 to the area below the pressing head 31, after the conveying mechanism 20 stops conveying, the conductive contact 72 can pass through two adjacent carriers 21 along the z direction and then abut against the grounding plate 73, which is ingenious.

[0050] For further details, please refer to... Figure 10 In this embodiment, a height adjustment structure 80 is provided between the conductive connecting plate 71 and the upper electrode plate 36. The height adjustment structure 80 includes a mounting hole 81 provided on the conductive connecting plate 71 and extending along the z direction, and a bolt 82 passing through the mounting hole 81 and connecting to the upper electrode plate 36. The initial height of the conductive contact 72 is adjusted according to the height adjustment structure 80 to adapt it to different application scenarios.

[0051] Furthermore, in order to improve the stability of the first pressure plate 35 moving along the z-direction, the first pressure plate 35 is provided with a plurality of guide rods 39, and the first top plate 33 is provided with guide holes for the guide rods 39 to extend and retract along the z-direction.

[0052] Furthermore, the conductive contact 72 is an elastic annular metal contact piece. The use of an annular metal contact piece provides better elastic recovery performance and better contact effect between the conductive contact 72 and the ground plane 73.

[0053] For further details, please refer to... Figure 12 The cutting mechanism 40 also includes a second mounting column 42 fixed to the machine base 10, a second top plate 43 fixed to the second mounting column 42, a third driving device 44 fixed to the second top plate 43 and capable of being driven along the z direction, a second pressure plate 45 fixed to the output end of the third driving device 44, and a pressing mold 46 fixed to the lower end of the second pressure plate 45. The cutter 41 is fixed to the lower end of the pressing mold 46. The carrier 21 is transported to the area below the cutter 41 of the cutting mechanism 40, the conveying mechanism 20 stops conveying, and the cutter 41 is driven to move downward along the z direction by the third driving device 44. The cutter 41 is used to cut off the edge of the membrane material 61 to obtain the medical air cushion 62.

[0054] For further details, please refer to... Figure 13In this embodiment, the gripping component 51 includes a gantry frame 53 that spans the conveying mechanism 20 along the y-direction, a first guide rail 54 disposed on the gantry frame 53 and extending along the y-direction, a first slider 55 that slides along the first guide rail 54, a fourth driving device 56 for driving the first slider 55 to move along the y-direction, an L-shaped frame 57 fixed to the first slider 55, a second slider 58 fixed to the L-shaped frame 57, a second guide rail 59 that slides with the second slider 58 along the z-direction, a fifth driving device 510 for driving the second guide rail 59 to slide along the z-direction, a base frame 511 fixed to the lower end of the second guide rail 59, and a plurality of suction cups 512 disposed on the base frame 511. The suction cups 512 pick up the medical air cushion 62 on the carrier 21, and then, through the driving cooperation of the fourth driving device 56 and the fifth driving device 510, the medical air cushion 62 on the carrier 21 is gripped and transferred to the stacking rack 52.

[0055] It should be noted that the fourth drive device 56 and the fifth drive device 510 in this embodiment both adopt a combination structure of motor, gear and rack, which has high transmission accuracy and high transmission efficiency. In other embodiments, the fourth drive device 56 and the fifth drive device 510 can also adopt linear drive devices such as ball screws and electric push rods.

[0056] The preferred embodiments of this utility model have been described in detail above. However, this invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this invention.

Claims

1. A conveying device for producing medical air cushions, characterized in that, It includes a machine base (10) and a conveying mechanism (20) provided on the machine base (10). The conveying mechanism (20) includes multiple carriers (21) that circulate along the x-direction. Each carrier (21) is provided with a groove (211) corresponding to the shape of the medical air cushion (62). The groove (211) is provided with positioning pins (212) on both sides along the y-direction.

2. The conveying device for producing medical air cushions according to claim 1, characterized in that, The conveying mechanism (20) further includes a first drive device (22) fixed to one side of the machine base (10), a sprocket (23) connected to the output end of the first drive device (22), an annular chain (24) meshing with the sprocket (23), and a connecting frame (25) spaced apart on the outside of the annular chain (24). The carrier (21) is fixed to the connecting frame (25).

3. A conveying device for producing medical air cushions according to claim 2, characterized in that, The machine base (10) is provided with a first support plate (11) for supporting the ring chain (24) and a second support plate (12) for supporting the carrier (21) on its inner side.

4. The conveying device for producing medical air cushions according to claim 1, characterized in that, The carrier (21) is provided with two grooves (211), which are arranged side by side along the x-direction.

5. A conveying device for producing medical air cushions according to claim 4, characterized in that, The carrier (21) is also provided with four limiting posts (213), which are distributed around the two grooves (211).

6. A conveying device for producing medical air cushions according to claim 1, characterized in that, The machine base (10) is provided with L-shaped limiting plates (26) on both sides along the y direction at the upper end, and the carrier (21) moves between the two L-shaped limiting plates (26) along the x direction.

7. A conveying device for producing medical air cushions according to claim 5, characterized in that, The upper end of the machine base (10) is provided with a plurality of sensors (27) spaced apart along the x direction, and the sensors (27) are used to sense the limiting post (213).

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