Thin film heat sealing device for liquid storage bag of infusion apparatus

Abstract

The invention discloses an infusion apparatus liquid storage bag film heat sealing device, and relates to the technical field of heat sealing devices. The hot-pressing machine comprises a machine table on which a hot-pressing head and a base plate are mounted, and further comprises a conveying structure mounted on the machine table. Film raw materials are borne through the carrying plate, the film raw materials are preliminarily pressed, held and limited through the fixing plate, the possibility that the movement amplitude of the film raw materials is too large during transportation is reduced, when the carrying plate is transported to the base plate through the transportation structure, the carrying plate is located under the hot-pressing head, and when the hot-pressing head presses downwards, the film raw materials are conveyed to the base plate through the conveying structure. The fixing plate is pushed through the abutting block on the fixing plate, so that the fixing plate relieves pressing of the thin film raw materials, at the moment, the hot pressing head conducts hot pressing on the area shielded by the fixing plate, the two thin film raw materials are heat-sealed together, and the heat-sealed area is the beginning pressing area of the fixing plate; therefore, the hot-sealed waste edge areas can be kept consistent.

Description

Technical Field

[0001] The invention relates to the technical field of heat-sealing devices, and in particular to a heat-sealing device for a liquid storage bag film of an infusion set. Background Art

[0002] The reservoir film is one of the components of the syringe reservoir, and plays a role in sealing and leak-proofing the reservoir. When manufacturing it, the reservoir film is heat-pressed by a heat sealing machine.

[0003] The existing heat sealing device is mainly composed of a frame, a hot pressing structure, a conveying structure and a carrier. Two film raw materials such as polyethylene films are placed on the carrier, the carrier is conveyed to the hot pressing station by the conveying structure, and the film is hot-pressed by the hot pressing structure to obtain a liquid storage capsule. The film raw materials on the carrier are usually aligned and sorted at the loading station. However, when the carrier moves with the conveying structure, the contact surfaces of the film raw materials are relatively smooth, so the film raw materials are prone to misalignment when they move with the carrier to the working plane. This will result in large differences in the size of the waste edges of the liquid storage capsule finally obtained by hot pressing. During the subsequent trimming process, the waste edges cannot be stacked and batch processed due to the non-uniform size during the trimming process. Single workpieces need to be trimmed, which reduces the overall processing efficiency.

[0004] Therefore, the present invention provides a film heat-sealing device for a liquid storage bag of an infusion set. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the above-mentioned background technology, and provide a film heat-sealing device for a liquid storage bag of an infusion set.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A device for heat-sealing a film of a liquid storage bag of an infusion device comprises a machine platform on which a heat pressing head and a backing plate are installed, and further comprises:

[0008] The transport structure is mounted on the machine platform;

[0009] A carrier is connected to the transport structure, and the transport structure drives the carrier to reciprocate along the first axis on the machine. A holding member is installed on the carrier, and the holding member includes a slide plate slidably installed on the carrier along the second axis. A first spring is connected between the slide plate and the carrier. A fixed plate for holding the film raw material is installed on the slide plate, and a first inclined surface is constructed on the fixed plate. A resistance block is installed on the hot pressing head, and a second inclined surface parallel to the first inclined surface is constructed on the resistance block.

[0010] Furthermore, the transport structure includes a cylinder installed on the machine, the telescopic end of the cylinder is connected to the carrier plate, a first pipe connected to the air source is installed on the cylinder, and a second pipe connected to the air source is installed on the machine. A limit plate is slidably installed in the second pipe through a push rod, and the diameter of the second pipe is smaller than that of the first pipe. When the limit plate contacts the carrier plate, the sliding of the carrier plate is restricted.

[0011] Furthermore, a cavity is opened in the carrier plate, and the top and bottom surfaces of the carrier plate are respectively constructed with a first through hole and a second through hole, a vacuum generator is installed on the machine platform, and an air cavity connected to the vacuum generator pipeline is constructed on the pad plate, and when the carrier plate moves onto the pad plate, the air cavity is connected to the second through hole.

[0012] Furthermore, a vent cylinder is installed in the air cavity through a connecting spring, a travel switch connected to the vacuum generator is provided in the air cavity, the vent cylinder is used to communicate with the second through hole, a through groove is provided on the machine platform to connect the air cavity with the air inlet end of the vacuum generator, the notch of the through groove is located on the side wall of the air cavity, an access port is provided on the side wall of the vent cylinder, and when the carrier plate is located on the pad, the carrier plate presses the vent cylinder to connect the access port with the notch of the through groove.

[0013] Furthermore, a sliding groove connected to the air cavity is provided on the machine platform, a limiting cylinder slidably matched with the sliding groove is installed on the carrier plate, a first notch is provided on the limiting cylinder, a second notch is provided on the vent cylinder, and parallel inclined surfaces are provided on the first notch and the second notch.

[0014] Furthermore, a rolling ball rollingly matched with the sliding groove is installed on the limiting cylinder, and a receiving groove for receiving the rolling ball is provided on the ventilation cylinder.

[0015] Furthermore, a receiving frame is installed at the telescopic end of the cylinder, and the receiving frame is used to receive the carrier plate. A resistance plate is slidably installed in the receiving frame, and a resistance spring is installed between the resistance plate and the receiving frame.

[0016] Furthermore, a guide block is installed in the containing frame, and a pressing plate is installed on the carrier plate. When the pressing plate contacts the guide block, the carrier plate is forced to contact the contact plate.

[0017] Furthermore, a vertical plate is installed on the machine platform, a limiting hole is provided on the vertical plate, and a limiting rod slidably inserted in the limiting hole is installed on the accommodating frame.

[0018] Furthermore, a movable roller is rotatably mounted on the fixed plate, and the fixed plate contacts the film raw material through the movable roller.

[0019] The beneficial effects of the present invention are as follows:

[0020] In the present invention, a carrier plate is used to carry the thin-film raw material, and a fixing plate is used to preliminarily press and limit the thin-film raw material, reducing the possibility of excessive movement of the thin-film raw material during transportation. When the transportation structure transports the carrier plate onto the backing plate, the carrier plate is directly below the hot pressing head. At this time, when the hot pressing head descends, the abutting block on it pushes the fixing plate, causing the fixing plate to release the pressing on the thin-film raw material. At this time, the hot pressing head hot-presses the area blocked by the fixing plate, thereby heat-sealing two thin-film raw materials together. The heat-sealed area is the area that was initially pressed by the fixing plate, ensuring that the waste edge areas after heat-sealing are consistent. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a structural schematic diagram of the machine platform of the present invention;

[0023] Figure 3 is a structural schematic diagram of the transportation structure of the present invention;

[0024] Figure 4 is a structural schematic diagram of the ventilation cylinder of the present invention;

[0025] Figure 5 is a structural schematic diagram of the carrier plate and the pressing member of the present invention;

[0026] Figure 6 is a structural schematic diagram of the carrier plate and the receiving frame of the present invention;

[0027] Figure 7 is an exploded view of a part of the structure of the present invention;

[0028] Figure 8 is an exploded view of the receiving frame structure of the present invention;

[0029] Figure 9 is the present invention Figure 5 exploded view of the structure in;

[0030] Figure 10 is the present invention Figure 2 sectional view of the three-dimensional structure in;

[0031] Figure 11 is a sectional view of the three-dimensional structure of the carrier plate of the present invention;

[0032] Reference numerals: 1, machine platform; 101, hot pressing head; 102, backing plate; 2, transportation structure; 201, air cylinder; 202, first pipeline; 203, second pipeline; 204, limiting plate; 205, pushing rod; 3, carrier plate; 301, cavity; 302, first through hole; 303, second through hole; 4, pressing member; 401, sliding plate; 402, fixing plate; 403, abutting block; 404, first spring; 5, sliding groove; 6, vacuum generator; 601, air cavity; 602, ventilation cylinder; 603, through slot; 604, access port; 605, connecting spring; 7, limiting cylinder; 8, first notch; 9, second notch; 10, rolling ball; 11, receiving groove; 12, receiving frame; 13, abutting plate; 14, abutting spring; 15, guiding block; 16, pressing plate; 17, movable roller; 18, vertical plate; 19, limiting hole; 20, limiting rod. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] As Figure 1 - Figure 11 shown, a film heat-sealing device for an infusion set liquid storage sac proposed in an embodiment of the present invention includes a machine platform 1, on which a hot pressing head 101 and a backing plate 102 are installed. The backing plate 102 is located directly below the hot pressing head 101. The hot pressing head 101 is driven by a hydraulic rod or other driving member to Figure 1 take the main perspective. The hot pressing head 101 is driven in the vertical direction to approach or move away from the backing plate 102, and further includes:

[0035] A transportation structure 2, installed on the machine platform 1;

[0036] The distinguishing features of the present invention include: a carrier plate 3, connected to the transportation structure 2. The transportation structure 2 drives the carrier plate 3 to reciprocate on the machine platform 1 along a first axis. A plate body is installed on the machine platform 1, and the transportation structure 2 is installed on this plate body. This plate body has two ends. The backing plate 102 is located at one end of the plate body, which is set as the working end, and the other end is the initial end where the carrier plate 3 moves on the machine platform 1. Therefore, this end is set as the moving end. The first axis is a virtual axis extending linearly from the working end to the moving end.

[0037] A holding member 4 is installed on the carrier plate 3, and the holding member 4 includes a slide plate 401 slidably installed on the carrier plate 3 along a second axis, the second axis is a virtual axis perpendicular to the first axis in the horizontal direction, a first spring 404 is connected between the slide plate 401 and the carrier plate 3, a fixed plate 402 for holding the film raw material is installed on the slide plate 401, and a first inclined surface is configured on the fixed plate 402, and a resistance block 403 is installed on the hot pressing head 101, and a second inclined surface parallel to the first inclined surface is configured on the resistance block 403, and the transport structure 2 is used to drive the carrier plate 3 to move on the machine 1, so that the carrier plate 3 can approach or move away from the pad 102 on the first axis;

[0038] When the slide plate 401 is pulled by the first spring 404 to approach the carrier plate 3, the fixed plate 402 is located above the upper surface of the carrier plate 3 and presses the film raw material to restrict the movement of the film raw material on the carrier plate 3. When heat sealing is required, the heat pressing head 101 moves downward, driving the resistance block 403 to gradually approach and resist the fixed plate 402. In this process, the slide plate 401 is forced to slide in the direction away from the carrier plate 3 through the guidance of the second inclined surface and the first inclined surface, thereby releasing the restriction on the film raw material, and the height of the fixed plate 402 on the slide plate 401 is higher than the height of the upper surface of the carrier plate 3, so that when the heat pressing head 101 descends, it will first resist the fixed plate 402 through the resistance block 403 and then contact the film raw material. At this time, the heat pressing head 101 performs heat pressing on the area blocked by the fixed plate 402, so that the two film raw materials are heat-sealed together, and the heat-sealed area is the initial pressing area of ​​the fixed plate 402, so that the waste edge area after heat sealing can be ensured to remain consistent;

[0039] When the device is in use, the carrier plate 3 is at the moving end. At this time, the film raw material is located on the carrier plate 3 and is pressed by the fixed plate 402. The carrier plate 3 is transported on the first axis by the transport structure 2, so that it can move to the pad 102. When the transport structure 2 transports the carrier plate 3 to the pad 102, the transport structure 2 stops transporting the carrier plate 3, and the carrier plate 3 can be located below the hot pressing head 101. At this time, the hot pressing head 101 descends, and the resistance block 403 resists and pushes the fixed plate 402, and the fixed plate 402 releases the shielding of the film raw material, thereby causing the hot pressing head 101 to be smoothly heat-sealed with the film raw material. During the transportation process, the fixed plate 402 fixes and presses the film raw material, so that the movement amplitude of the film raw material on the carrier plate 3 is small, thereby reducing the possibility of large fluctuations in the waste edge material area after heat sealing, which is convenient for subsequent cutting of the waste edge material.

[0040] Compared with the prior art, the film raw material is carried by the carrier plate 3, and the film raw material is preliminarily pressed and limited by the fixing plate 402, reducing the possibility of excessive movement of the film raw material during transportation. When the transportation structure 2 transports the carrier plate 3 onto the backing plate 102, the carrier plate 3 is directly below the hot pressing head 101. At this time, when the hot pressing head 101 presses down, the abutting block 403 on it pushes the fixing plate 402, causing the fixing plate 402 to release the pressing on the film raw material. At this time, the hot pressing head 101 hot presses the area blocked by the fixing plate 402, thereby heat-sealing the two film raw materials together, and the heat-sealed area is the initial pressing area of the fixing plate 402. This can ensure that the waste edge area after heat-sealing remains consistent, facilitating subsequent cutting of the waste edge material.

[0041] As Figure 3 shown, a partial structure of the transportation structure 2 is disclosed. The transportation structure 2 includes a cylinder 201 installed on the machine table 1. The telescopic end of the cylinder 201 is connected to the carrier plate 3. A first pipe 202 connected to the air source is installed on the cylinder 201. The machine table 1 is installed with a second pipe 203 connected to the air source. The air source is an industrial air pump, which is used to pump air into or exhaust air from the first pipe 202 and the second pipe 203. Solenoid valves are provided on both the first pipe 202 and the second pipe 203. A limiting plate 204 is slidably installed in the second pipe 203 along the pushing rod 205. The diameter of the second pipe 203 is smaller than that of the first pipe 202. The limiting plate 204 is located between the moving end and the working end. When the carrier plate 3 is at the moving end, the limiting plate 204 is on the side of the carrier plate 3 close to the working end. When the carrier plate 3 is at the working end, the limiting plate 204 contacts the side of the carrier plate 3 close to the moving end. When the limiting plate 204 contacts the carrier plate 3, the sliding of the carrier plate 3 is restricted, so as to Figure 1 take the main perspective. The opening at the free end of the second pipe 203 faces vertically upward. When the industrial air pump inflates the second pipe 203, the airflow pushes the pushing rod 205 and then pushes the limiting plate 204 to slide upward, resulting in the distance between the lower surface of the limiting plate 204 and the upper surface of the machine table 1 being sufficient for the carrier plate 3 to pass through. There are two first pipes 202, located at both ends of the cylinder 201. The first pipe 202 close to the backing plate 102 is designated as the first pipe, and the first pipe 202 far from the backing plate 102 is designated as the second pipe. When inflating the first pipe, the airflow pushes the telescopic end from the direction close to the backing plate 102 to the direction away from the backing plate 102, causing the telescopic end to retract. When inflating the second pipe, the airflow pushes the telescopic end from the direction away from the backing plate 102 towards the direction close to the backing plate 102, causing the telescopic end to extend;

[0042] When the device is in use, through the adjustment of the solenoid valve, first, the industrial air pump is made to inflate the second pipeline 203. At this time, the limit plate 204 slides upward, releasing the blockage of the sliding of the carrier plate 3. Then, through the adjustment of the solenoid valve, the industrial air pump is made to inflate the second pipe, so that the telescopic end of the cylinder 201 pushes the carrier plate 3, causing the carrier plate 3 to slide in the direction of the backing plate 102. When the carrier plate 3 is transported onto the backing plate 102, the industrial air pump stops inflating the second pipe and the second pipeline 203, and through the adjustment of the solenoid valve, the gas in the second pipeline 203 is pumped out. When the gas in the second pipeline 203 releases the push on the limit plate 204, the limit plate 204 falls by gravity, so that the limit plate 204 blocks one end of the carrier plate 3 close to the moving end. By the blockage of the limit plate 204, the movement of the carrier plate 3 towards the moving end is restricted. Since the components on the cylinder 201 will wear after long-term use, when its telescopic end stops working, it is prone to retract. By setting the limit plate 204 to block one side of the carrier plate 3 close to the moving end, the retraction of the cylinder 201 is restricted, so that when the carrier plate 3 is located on the backing plate 102, it can be directly below the hot pressing head 101, improving the positioning effect of the device on the carrier plate 3, further reducing the possibility of skew in the waste edge area, and increasing the practicality of the device;

[0043] When the film of the liquid storage sac of the infusion set is processed, through the adjustment of the solenoid valve, the industrial air pump is first made to blow air into the second pipeline 203, so that the limit plate 204 releases the blockage of the carrier plate 3. At this time, the solenoid valve on the first pipe is started, so that the industrial air pump inflates the first pipe, and the air flow in the first pipe pushes the telescopic end of the cylinder 201, causing its telescopic end to drive the carrier plate 3 to move towards the moving end, ensuring the feasibility of the device.

[0044] As Figure 5 、 Figure 9 and Figure 11 shown, the specific structure of the carrier plate 3 is disclosed. A cavity 301 is formed in the carrier plate 3, and a first through hole 302 and a second through hole 303 are respectively formed on the top and bottom surfaces of the carrier plate 3. A vacuum generator 6 is installed on the machine table 1, and an air cavity 601 communicated with the pipeline of the vacuum generator 6 is formed on the backing plate 102. When the carrier plate 3 moves onto the backing plate 102, the air cavity 601 is communicated with the second through hole 303. When the carrier plate 3 moves onto the backing plate 102, the air cavity 601 is communicated with the second through hole 303. When the vacuum generator 6 is in use, it is used for suction. When the vacuum generator 6 is started, the gas in the cavity 301 is pumped out to form a negative pressure, and the film raw material on the carrier plate 3 is adsorbed and fixed to the carrier plate 3 by relying on the first through hole 302;

[0045] One end of the sliding plate 401 penetrates through the carrier plate 3 and is located inside the cavity 301. The first spring 404 is located inside the cavity 301, and the first spring 404 is protected by the shielding of the carrier plate 3. Due to the penetration of the sliding plate 401, through grooves are formed on the side wall of the carrier plate 3. The side wall of the sliding plate 401 fits against the inner wall of the through groove, and the sliding direction of the sliding plate 401 is restricted by the inner wall of the through groove, increasing the stability of the sliding plate 401 during sliding;

[0046] When pre-treating the film raw material, it is divided into two groups, group A and group B. The area of group A is larger than that of group B. When it is laid on the carrier plate 3, the film raw material of group B is located below the film raw material of group A. When the carrier plate 3 moves to the cushion plate 102, the second through hole 303 communicates with the air cavity 601. At this time, the vacuum generator 6 pumps air, pumping the air located inside the cavity 301, so that the air pressure inside the cavity 301 is less than the external air pressure. The external gas has a tendency to move into the cavity 301 through the first through hole 302, thereby pressing the film raw material located on the carrier plate 3. Since the area of the film raw material of group A is larger than that of the film raw material of group B, the first through hole 302 also contacts it and presses it, so that when the fixing plate 402 releases the fixation of the film raw material, the film raw material can be relatively stably maintained in place, avoiding the possibility that the fixing plate 402 drives the film raw material to slide, increasing the practicability of the device.

[0047] As Figure 10 shown, the specific structure of the air cavity 601 is disclosed. An air vent tube 602 is installed inside the air cavity 601 through a connecting spring 605. A travel switch connected to the vacuum generator 6 is arranged inside the air cavity 601, and the two are electrically connected. The connecting spring 605 forces the air vent tube 602 away from the air cavity 601. When the carrier plate 3 moves to the cushion plate 102, the carrier plate 3 presses the air vent tube 602, causing the air vent tube 602 to move into the air cavity 601 and pressing the travel switch. The existing travel switch is started or stopped by receiving mechanical movement through an operating head, and the air vent tube 602 is used to contact the operating head, thereby starting the vacuum generator 6 and starting to pump air;

[0048] The vent 602 is used to communicate with the second through hole 303. A through groove 603 is provided on the machine 1 to connect the air cavity 601 with the air inlet end of the vacuum generator 6. The notch of the through groove 603 is located on the side wall of the air cavity 601. An access port 604 is provided on the side wall of the vent 602. When the carrier 3 is located on the pad 102, the carrier 3 presses the vent 602 to connect the access port 604 with the notch of the through groove 603. When the operating head is pressed by the vent 602 to start the vacuum generator 6, the operating head When the head moves to the maximum limit, the operating head in turn limits the downward movement of the ventilator 602, and the upper part of the ventilator 602 is blocked by the carrier plate 3, limiting the position of the ventilator 602 so that the access port 604 on the ventilator 602 can be aligned with the through slot 603. When the carrier plate 3 and the pad 102 are in a separated state, the connecting spring 605 pushes the ventilator 602 to move upward, and the operating head of the travel switch is reset, and the access port 604 is disconnected from the through slot 603.

[0049] When in use, when the transport structure 2 transports the carrier plate 3 to the pad 102, the carrier plate 3 resists the ventilator 602, so that the ventilator 602 moves into the air cavity 601. When the carrier plate 3 is completely located on the pad 102, the ventilator 602 is immersed in the air cavity 601 and is completely immersed. A travel switch connected to the vacuum generator 6 is installed in the air cavity 601. When the ventilator 602 is completely immersed in the air cavity 601, it contacts the travel switch to make the vacuum generator 6. 6 is started, and at the same time, the inlet 604 is connected with the notch of the through slot 603, and air is evacuated through the vacuum generator 6. Since the hot pressing head 101 starts to fall after the carrier plate 3 is located on the pad 102, the hot pressing head 101 is a process quantity when it falls during hot pressing, and it needs falling time, so the vacuum generator 6 has enough time to extract the air in the cavity 301, and absorb the film raw material before the fixing plate 402 releases the pressure on the film raw material, thereby increasing the feasibility of the device.

[0050] like Figure 2 , Figure 4 , Figure 7 and Figure 11As shown, some structures on the machine table 1 and the carrier plate 3 are disclosed. A sliding groove 5 communicating with the air chamber 601 is formed on the machine table 1. The sliding groove 5 is formed on the upper surface of the machine table 1. A limiting cylinder 7 slidably engaged with the sliding groove 5 is installed on the carrier plate 3. The limiting cylinder 7 communicates with the second through hole 303. The limiting cylinder 7 forms a protrusion on the lower surface of the carrier plate 3 and is slidably inserted into the sliding groove 5. The side wall of the limiting cylinder 7 contacts the inner wall of the sliding groove 5. The end of the sliding groove 5 close to the air cylinder 201 is set as the initial end, and the end of the sliding groove 5 close to the air chamber 601 is set as the limiting end. The side wall of the limiting end of the sliding groove 5 is coplanar with the inner wall of the air chamber 601. When the limiting cylinder 7 moves from the sliding groove 5 to the limiting end, the limiting cylinder 7 communicates with the air chamber 601, so that the air chamber 601 communicates with the second through hole 303. A first notch 8 is formed on the limiting cylinder 7, and a second notch 9 is formed on the air vent cylinder 602. The first notch 8 and the second notch 9 are provided with inclined surfaces parallel to each other. The second notch 9 faces the initial end of the sliding groove 5, and the first notch 8 faces the limiting end of the sliding groove 5;

[0051] When the device is in use, when the air cylinder 201 pushes the carrier plate 3 to move towards the cushion plate 102, the limiting cylinder 7 slides in the sliding groove 5. When the limiting cylinder 7 moves to the limiting end, the carrier plate 3 is located on the cushion plate 102 and restricts the movement of the carrier plate 3 in the direction away from the air cylinder 201. At this time, the industrial air pump pumps out the air in the second pipeline 203, and restricts the movement of the carrier plate 3 in the direction close to the air cylinder 201 through the limiting plate 204, thereby restricting the movement of the carrier plate 3 on the first axis, enabling the device to stably position the carrier plate 3, further reducing the possibility of skew in the waste edge material area during the processing of the device, and increasing the practicality of the device.

[0052] As Figure 4 and Figure 11As shown, the specific structure on the limiting cylinder 7 is disclosed. A rolling ball 10 that is in rolling fit with the sliding groove 5 is installed on the limiting cylinder 7. A receiving groove 11 for receiving the rolling ball 10 is formed on the ventilation cylinder 602. The rolling ball 10 is located at the bottom of the limiting cylinder 7. The limiting cylinder 7 contacts the bottom inner wall of the sliding groove 5 through the rolling ball 10. The rolling of the rolling ball 10 reduces the friction between the limiting cylinder 7 and the sliding groove 5, enabling the limiting cylinder 7 to slide better within the sliding groove 5. And when the limiting cylinder 7 contacts the ventilation cylinder 602, the rolling ball 10 can continue to move towards the ventilation cylinder 602 through the guiding of the inclined surface on the second notch 9. When the limiting cylinder 7 presses on the ventilation cylinder 602, the rolling ball 10 is inserted into the receiving groove 11. At this time, the inner wall of the receiving groove 11 restricts the rolling ball 10, so that when the external force is small, that is, when the industrial air pump stops inflating the cylinder 201, the inertia of the movement of the carrier plate 3 cannot drive the rolling ball 10 to separate from the receiving groove 11, further increasing the stability when the carrier plate 3 moves onto the backing plate 102 and enhancing the practicality of the device. And when the cylinder 201 pulls the carrier plate 3, the pulling force is sufficient to make the rolling ball 10 contact the inner wall of the receiving groove 11 and separate from the receiving groove 11, improving the feasibility of the device.

[0053] As Figure 6 and Figure 8 shown, the partial structure on the cylinder 201 is disclosed. A receiving frame 12 is installed at the telescopic end of the cylinder 201. The receiving frame 12 is used to receive the carrier plate 3. A contact plate 13 is slidably installed within the receiving frame 12. A contact spring 14 is installed between the contact plate 13 and the receiving frame 12 to Figure 1 serve as the main perspective. The receiving frame 12 has an opening in the vertical direction, enabling the carrier plate 3 to be separated from and connected to the receiving frame 12 in the vertical direction. The contact plate 13 slides on the receiving frame 12 along the first axis. A rod body is installed on the contact plate 13. A hole for receiving the rod body is formed on the receiving frame 12. The restriction of the rod body through the hole enables the contact plate 13 to only slide on the receiving frame 12 along the direction of the first axis. The side wall of the contact plate 13 in the vertically upward direction has a rounded corner;

[0054] When the device is in use, the carrier plate 3 contains and fixes the film raw material elsewhere, and then the carrier plate 3 is transported to the top of the containing frame 12 by the robot, and the carrier plate 3 is inserted downward and inserted into the containing frame 12. During the process, the contact plate 13 guides the contact plate 13 through the rounded corners thereon to make way for the carrier plate 3, so that the carrier plate 3 can be smoothly inserted into the containing frame 12, and when the carrier plate 3 is in the containing frame 12, the contact spring 14 pushes the contact plate 13, so that the contact plate 13 contacts the carrier plate 3, so that the carrier plate 3 and the inner wall of the containing frame 12 are in contact, which increases the friction between the two and increases the stability of the carrier plate 3 in the containing frame 12. When the film of the infusion reservoir is processed, the industrial air pump inflates the No. 1 tube, so that the telescopic end of the cylinder 201 pulls the containing frame 12 and the carrier plate 3 to reset, and then the carrier plate 3 is pulled by the robot to complete the unloading of the carrier plate 3, which increases the feasibility of the device;

[0055] When the carrier 3 is located on the pad 102, its movement stops, and the vacuum generator 6 has a process of evacuating air from the cavity 301. The time spent in this process allows the carrier 3 to have enough time to remain stationary relative to the containing frame 12, thereby increasing the feasibility of the device.

[0056] like Figure 8 and Figure 9 As shown, a partial structure of the accommodating frame 12 is disclosed. A guide block 15 is installed in the accommodating frame 12, and a pressing plate 16 is installed on the carrier plate 3. The guide block 15 and the pressing plate 16 are both provided with inclined surfaces parallel to each other. When the pressing plate 16 contacts the guide block 15, the carrier plate 3 is forced to contact the contact plate 13. A vertical block is also installed on the guide block 15. When the manipulator inserts the carrier plate 3 downward, the carrier plate 3 contacts the guide block 15 through the pressing plate 16, and the inclined surfaces on the two are used to contact the carrier plate 3. The surface is guided so that the carrier plate 3 can also slide in the direction close to the resistance plate 13, so that the carrier plate 3 can smoothly press the resistance plate 13, so that the carrier plate 3 can be smoothly inserted into the accommodating frame 12 during installation. When the carrier plate 3 is located in the accommodating frame 12, the carrier plate 3 is pushed by the resistance plate 13, causing the end plane of the pressing plate 16 to contact the side wall of the vertical block, thereby increasing the friction between the carrier plate 3 and the inner wall of the accommodating frame 12, and further increasing the stability of the carrier plate 3 in the accommodating frame 12.

[0057] like Figure 7As shown, in some embodiments, a vertical plate 18 is installed on the machine table 1. A limiting hole 19 is formed in the vertical plate 18. A limiting rod 20 is slidably inserted into the limiting hole 19 and installed on the accommodating frame 12. The limiting rod 20 is inserted into the limiting hole 19, and the side wall of the limiting rod 20 is restricted by the inner wall of the limiting hole 19, thereby restricting the movement path of the accommodating frame 12. When the cylinder 201 is used for a long time, its telescopic end is prone to shaking. By restricting the limiting rod 20 through the limiting hole 19, the sliding path of the accommodating frame 12 is restricted, reducing the possibility of misalignment of the carrier plate 3 when it is transported onto the backing plate 102 due to the shaking of the telescopic end of the cylinder 201, and increasing the practicability of the device.

[0058] As Figure 6 shown, in some embodiments, a movable roller 17 is rotatably installed on the fixed plate 402. The fixed plate 402 contacts the film raw material through the movable roller 17. When the fixed plate 402 fixes the film raw material, the fixed plate 402 is pulled by the first spring 404 to slide towards the direction close to the carrier plate 3, and presses the film raw material through the movable roller 17. At this time, the fixed plate 402 only serves to provide an installation position for the movable roller 17, and it is not necessary to press the film raw material by the fixed plate 402 itself. When the fixed plate 402 is abutted by the abutting block 403 and moves away from the carrier plate 3, the movable roller 17 is separated from the film raw material by rolling, reducing the friction between the fixed plate 402 and the film raw material, further reducing the possibility of wrinkling of the film raw material when the fixed plate 402 releases the fixed pressing on the film raw material, and increasing the feasibility of the device.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An infusion set liquid storage sac film heat-sealing device, comprising a machine table (1) on which a hot pressing head (101) and a backing plate (102) are installed, characterized in that, It further includes: A transport structure (2), installed on the machine platform (1); A carrier plate (3), connected to the transport structure (2), and the transport structure (2) drives the carrier plate (3) to reciprocate along the first axis on the machine platform (1). A pressing member (4) is installed on the carrier plate (3). The pressing member (4) includes a sliding plate (401) slidably installed on the carrier plate (3) along the second axis. A first spring (404) is connected between the sliding plate (401) and the carrier plate (3). A fixing plate (402) for pressing the film raw material is installed on the sliding plate (401). A first inclined surface is formed on the fixing plate (402). A contact block (403) is installed on the hot pressing head (101), and a second inclined surface parallel to the first inclined surface is formed on the contact block (403).

2. The infusion set liquid storage sac film heat sealing device according to claim 1, wherein, The transport structure (2) includes a cylinder (201) installed on the machine platform (1). The telescopic end of the cylinder (201) is connected to the carrier plate (3). A first pipe (202) connected to the air source is installed on the cylinder (201). A second pipe (203) connected to the air source is installed on the machine platform (1). A limiting plate (204) is slidably installed in the second pipe (203) through a push rod (205). When the limiting plate (204) contacts the carrier plate (3), the sliding of the carrier plate (3) is restricted.

3. The infusion set liquid storage sac film heat sealing device according to claim 2, characterized in that, A cavity (301) is formed in the carrier plate (3). A first through hole (302) and a second through hole (303) are respectively formed on the top surface and the bottom surface of the carrier plate (3). A vacuum generator (6) is installed on the machine platform (1). An air cavity (601) communicating with the pipeline of the vacuum generator (6) is formed on the backing plate (102). When the carrier plate (3) moves onto the backing plate (102), the air cavity (601) communicates with the second through hole (303).

4. The infusion set liquid storage sac film heat sealing device according to claim 3, characterized in that, An air vent cylinder (602) is installed in the air cavity (601) through a connecting spring (605). A travel switch connected to the vacuum generator (6) is arranged in the air cavity (601). The air vent cylinder (602) is used to communicate with the second through hole (303). A through groove (603) for communicating the air cavity (601) with the intake end of the vacuum generator (6) is formed on the machine platform (1). The notch of the through groove (603) is located on the side wall of the air cavity (601). An access port (604) is formed on the side wall of the air vent cylinder (602). When the carrier plate (3) is located on the backing plate (102), the carrier plate (3) presses the air vent cylinder (602) to make the access port (604) communicate with the notch of the through groove (603).

5. The infusion set liquid storage sac film heat sealing device according to claim 4, characterized in that, A sliding groove (5) communicating with the air cavity (601) is formed on the machine platform (1). A limiting cylinder (7) slidably matched with the sliding groove (5) is installed on the carrier plate (3). A first notch (8) is formed on the limiting cylinder (7). A second notch (9) is formed on the air vent cylinder (602). Inclined surfaces parallel to each other are formed on the first notch (8) and the second notch (9).

6. The infusion set liquid storage sac film heat sealing device according to claim 5, characterized in that, A rolling ball (10) that is in rolling fit with the sliding groove (5) is installed on the limiting cylinder (7), and a receiving groove (11) for receiving the rolling ball (10) is formed on the ventilation cylinder (602).

7. The infusion set liquid storage sac film heat sealing device according to claim 6, characterized in that A receiving frame (12) is installed at the telescopic end of the air cylinder (201). The receiving frame (12) is used to receive the carrier plate (3). A contact plate (13) is slidably installed in the receiving frame (12), and a contact spring (14) is installed between the contact plate (13) and the receiving frame (12).

8. The infusion set liquid storage sac film heat sealing device according to claim 7, characterized in that, A guiding block (15) is installed in the receiving frame (12), and a pressing plate (16) is installed on the carrier plate (3). When the pressing plate (16) abuts against the guiding block (15), the carrier plate (3) is forced to abut against the contact plate (13).

9. The infusion set liquid storage sac film heat sealing device according to claim 8, characterized in that, A vertical plate (18) is installed on the machine table (1), a limiting hole (19) is formed on the vertical plate (18), and a limiting rod (20) that is slidably inserted into the limiting hole (19) is installed on the receiving frame (12).

10. The infusion set liquid storage sac film heat sealing device according to claim 9, characterized in that, A movable roller (17) is rotatably installed on the fixing plate (402), and the fixing plate (402) contacts the film raw material through the movable roller (17).

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