Thermoplastic part thermal interface device and method of use

Abstract

The present application relates to medical auxiliary equipment packaging technical field, specifically to a kind of thermoplastic piece hot connection device and its using method, including machine base, the machine base is provided with conveyor belt, the conveyor belt is provided with multiple groups of loading assembly for carrying packaging box, the machine base is fixedly connected with rack, the rack is provided with heat sealing assembly for pressing Dupont paper and packaging box and detection assembly for detecting the sealing property of packaging box, the both sides of the machine base are provided with cooling assembly for assisting loading assembly cooling.This scheme is provided with detection assembly, guide rod presses Dupont paper, range finder calculates and packaging box adhering Dupont paper edge changes, if sealing is perfect, Dupont paper edge will not have raised portion, i.e.data detected by range finder will not change, otherwise, sealing is poor, Dupont paper is pressed center line, unsealed edge will have raised, part of data detected by range finder changes, to detect problem package.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary equipment packaging technology, specifically to a thermoplastic part heat-welding device and its usage method. Background Technology

[0002] To prevent contamination, some disposable medical assistive devices are packaged in boxes sealed with DuPont paper. However, due to manufacturing defects, some boxes may have incomplete sealing at the edges, resulting in poor sealing performance. Once the sealing performance of the box deteriorates, the medical assistive devices stored inside are easily contaminated by bacteria. Because medical packaging boxes are manufactured in large batches, their sealing performance needs to be tested during the packaging process. However, traditional testing procedures are cumbersome and inefficient, and it is impossible to test every single box produced; only random checks are possible, which makes it difficult to improve the hygiene and quality assurance of medical devices. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a thermoplastic part heat-sealing device and its usage method, which can effectively solve the problems that complete testing of packaging sealing performance using existing packaging sealing technologies leads to low production efficiency and that sampling inspection cannot eliminate problematic packaging.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention provides a thermoplastic part heat-sealing device and its usage method, including a base, a conveyor belt on the base, multiple sets of loading components for carrying packaging boxes on the conveyor belt, a frame fixedly connected to the base, a heat-sealing component for pressing DuPont paper and packaging boxes and a detection component for detecting the sealing performance of packaging boxes are provided inside the frame, and cooling components for assisting the cooling of the loading components are provided on both sides of the base.

[0006] The heat sealing assembly includes an electric push rod a fixedly mounted on a frame, a support seat a fixedly mounted on the telescopic end of the electric push rod a, and a pressure block fixedly mounted on the support seat a.

[0007] The detection assembly includes an electric push rod b fixedly mounted on a frame. The telescopic end of the electric push rod b is fixedly connected to a support base b. A rangefinder is fixedly mounted on the bottom of the support base b. Three sets of fixing slots c are equidistantly opened inside the support base b. Guide rods are slidably inserted into the fixing slots c. Two sets of sliding slots b are symmetrically opened on both sides of the support base b. Sliding blocks are slidably inserted into the sliding slots b. The same set of sliding blocks is fixedly installed on the two sets of sliding blocks on the same side. Two sets of positioning components are provided on one side of the sliding blocks.

[0008] Furthermore, the positioning component includes a positioning support fixedly installed on one side of the sliding block, a rotating shaft rotatably mounted on the positioning support, a half gear and a push plate fixedly mounted on the rotating shaft, two sets of sliding grooves c are provided on the sliding block, a rack is slidably inserted in the sliding groove c, and the rack meshes with the half gear for transmission, and a counterweight is fixedly installed at the bottom of the rack.

[0009] Furthermore, the loading assembly includes a workstation base, on which a fixing groove a and a fixing groove b are provided, and positioning grooves are provided on both sides of the workstation base.

[0010] Furthermore, a water-cooling tank is provided inside the workstation, and connection holes are provided on both sides of the loading assembly.

[0011] Furthermore, the bottom of the loading component is provided with four sets of sliding grooves a at equal intervals. Support members are slidably inserted into the sliding grooves a. A connecting shaft is installed on two opposing sets of support members, and the connecting shaft is fixedly installed on the conveyor belt.

[0012] Furthermore, the cooling assembly includes a water tank fixedly installed on one side of the base, a water pipe fixedly installed on the water tank, and the end of the water pipe penetrating the frame. A fixing member is fixedly installed on the water pipe, and two sets of electric push rods c are fixedly installed on the fixing member, with the ends of the electric push rods c fixedly installed inside the frame.

[0013] The method of using the above-mentioned thermoplastic part heat-welding device includes the following steps:

[0014] S1: Place the packaging box in the fixed slot b, place the medical auxiliary equipment in the packaging box, place the DuPont paper in the fixed slot a, and run the conveyor belt to transport the loading components into the rack;

[0015] S2: The electric push rod a pushes the support seat a down, and the electrically heated pressure block presses down on the edge of the packaging box and DuPont paper, causing the plastic on the edge of the packaging box to melt into an adhesive and stick to the DuPont paper.

[0016] S3: The heat-sealed loading assembly is transported to the bottom of the detection assembly via a conveyor belt. The detection assembly descends to position it, the cooling assembly cools the inside of the loading assembly, and the guide rod, in conjunction with the rangefinder, detects the sealing of the packaging box.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0018] This solution uses a detection component where a guide rod presses down on the DuPont paper. A rangefinder measures the edge changes of the DuPont paper adhered to the packaging box. If the seal is good, there will be no raised edges on the DuPont paper, meaning the data detected by the rangefinder will not change. Conversely, if the seal is poor, the DuPont paper will be pressed down along the center line, and the unsealed edges will be raised, causing some data detected by the rangefinder to change. By incorporating a cooling component, cooling is completed after the packaging box is heat-sealed and before the seal test, which helps to ensure accurate seal test results. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0022] Figure 3 This is a schematic cross-sectional view of the support base b of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the detection component of the present invention;

[0024] Figure 5 This is a cross-sectional three-dimensional structural diagram of the workstation base of the present invention;

[0025] Figure 6 This is a partial cross-sectional structural diagram of the loading component of the present invention;

[0026] Figure 7 This is a top view of the cooling assembly of the present invention.

[0027] Figure 8 This is a cross-sectional structural diagram of the fixing component of the present invention.

[0028] Figure label:

[0029] 1. Base; 101. Frame; 102. Conveyor belt;

[0030] 2. Loading assembly; 201. Workstation base; 2011. Sliding groove a; 2012. Support component; 2013. Connecting shaft; 202. Fixing groove a; 203. Fixing groove b; 204. Positioning groove; 205. Water cooling tank; 206. Connecting hole;

[0031] 3. Electric push rod a; 301. Support base a; 302. Pressure block;

[0032] 4. Detection components; 401. Electric push rod b; 402. Support base b; 4021. Rangefinder; 4022. Fixing groove c; 4023. Guide rod; 4024. Sliding groove b; 403. Sliding block; 4031. Sliding groove c; 404. Positioning components; 4041. Positioning support; 4042. Rotating shaft; 4043. Half gear; 4044. Push plate; 4045. Rack; 4046. Counterweight;

[0033] 5. Cooling components; 501. Water tank; 502. Water pipe; 503. Fixtures; 504. Electric push rod c. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] The present invention will be further described below with reference to embodiments.

[0036] Example 1:

[0037] See attached document Figure 1 —Appendix Figure 8 The device for heat-sealing thermoplastic parts shown includes a base 1, a conveyor belt 102 on the base 1, multiple loading components 2 for carrying packaging boxes on the conveyor belt 102, a frame 101 fixedly connected to the base 1, the frame 101 for supporting the pressing block 302 and the detection component 4, the frame 101 is provided with a heat-sealing component for pressing DuPont paper and packaging boxes and a detection component 4 for detecting the sealing performance of packaging boxes, and cooling components 5 for assisting the cooling of the loading components 2 are provided on both sides of the base 1.

[0038] Specifically, the packaging box to be sealed, medical auxiliary equipment, and DuPont paper are placed sequentially on the loading assembly 2, and then conveyed into the frame 101 by the conveyor belt 102. The pressing block 302 heats and fuses the packaging box and DuPont paper, and the conveyor belt 102 then conveys the loading assembly 2 to the bottom of the detection assembly 4. The cooling assembly 5 cools the packaging box on the loading assembly 2, and the detection assembly 4 performs positioning and sealing tests on the loading assembly 2, thereby helping to ensure that each packaging box leaving the factory is intact and sealed.

[0039] Example 2:

[0040] See attached document Figure 1 Appendix Figure 2 Appendix Figure 5 and attached Figure 6 As shown, the loading assembly 2 includes a workstation 201, on which a fixing groove a202 and a fixing groove b203 are provided. The fixing groove b203 serves as a receiving groove for the packaging box, and the protruding edge of the packaging box opening rests on the fixing groove a202. DuPont paper is also placed on the fixing groove a202. Positioning grooves 204 are provided on both sides of the workstation 201. The positioning grooves 204 are used for the positioning insertion of the counterweight 4046, which helps to make the connection between the detection assembly 4 and the loading assembly 2 more secure. The loading component 2 is stable. Four sets of sliding grooves a2011 are equidistantly provided at the bottom. Support members 2012 are slidably inserted on the sliding grooves a2011. By setting the sliding grooves a2011 and the support members 2012, the workstation 201 can easily fit the conveyor belt 102 at the corner. The two sets of support members 2012 are connected by a connecting shaft 2013, and the connecting shaft 2013 is fixedly installed on the conveyor belt 102. By setting the connecting shaft 2013, the workstation 201 is fixed on the conveyor belt 102.

[0041] Example 3:

[0042] See attached document Figure 5 Appendix Figure 7 and attached Figure 8 As shown, the cooling assembly 5 includes a water tank 501 fixedly installed on one side of the base 1. One set of water tanks 501 is equipped with a water supply pump, and the other set of water tanks 501 is equipped with a water pump. By setting two different sets of water pumps, it is convenient to fill the water cooling tank 205 with water and to pump out all the water after cooling. This allows the cold water to flow unidirectionally in the water cooling tank 205 while preventing water leakage in the loading assembly 2. A water pipe 502 is fixedly installed on the water tank 501, and the end of the water pipe 502 passes through the frame 101. A fixing member 503 is fixedly installed on the water pipe 502. By setting the fixing member 503, it is convenient for the electric push rod c504 to control the movement of the end of the water pipe 502. Two sets of electric push rods c504 are fixedly installed on the fixing member 503, and the ends of the electric push rods c504 are fixedly installed inside the frame 101. The electric push rods c504 control the water pipe 502 to connect or disconnect from the connection hole 206.

[0043] Working principle: The electric push rod c504 controls the water pipe 502 to be inserted into the connection hole 206 through the fixing part 503. The water supply pump in the water tank 501 on the water supply side supplies water to the water cooling tank 205 through the water pipe 502. The water pipe 502 guides the water into the water cooling tank 205 through the connection hole 206. The water automatically splits into two streams along the inner wall of the water cooling tank 205 and flows to the connection hole 206 on the other side. The water flowing in the water cooling tank 205 transfers heat to the fixed groove a202 above it, cooling the edge of the packaging box. When the temperature at the fixed groove a202 drops to the normal temperature, the water supply pump stops supplying water, and the water pump on the outlet side starts, pumping out all the water in the water cooling tank 205 through the water pipe 502. Then, the electric push rods c504 on both sides control the water pipe 502 to separate from the connection hole 206 through the fixing part 503, which facilitates the subsequent movement of the loading component 2.

[0044] Example 4:

[0045] See attached document Figure 2 —Appendix Figure 4 As shown, the heat-sealing assembly includes an electric push rod a3 fixedly mounted on the frame 101. The electric push rod a3 is used to control the lifting and lowering of the support base a301. The telescopic end of the electric push rod a3 is fixedly mounted on the support base a301. A pressure block 302 is fixedly mounted on the support base a301. The pressure block 302 has a rectangular frame-shaped cross-section. The hollow structure helps to save energy and protects the medical auxiliary equipment inside the packaging box, preventing damage to the medical auxiliary equipment caused by direct exposure to high temperatures. When heated by electricity, the pressure block 302 can melt the plastic at the edge of the packaging box. The melted plastic adheres to the DuPont paper. Specifically, the electric push rod a3 pushes the support base a301 down, causing the pressure block 302 to press down on the packaging box and DuPont paper. The electrically heated pressure block 302 presses down on the edges of the packaging box and DuPont paper, causing the plastic at the edge of the packaging box to melt into an adhesive and adhere to the DuPont paper.

[0046] The detection component 4 includes an electric push rod b401 fixedly mounted on the frame 101. The electric push rod b401 controls the lifting and lowering of the support base b402. The telescopic end of the electric push rod b401 is fixedly connected to the support base b402. A rangefinder 4021 is fixedly mounted on the bottom of the support base b402. The rangefinder 4021 detects the sealing performance of the packaging box by infrared ranging. When the fixing groove c4022 presses down on the DuPont paper, if the infrared measurement shows that the distance between the DuPont paper and its four edges is the same, then the sealing performance of the packaging box is good. If the paper on one side is raised, causing its edge to be equidistant from the rest of the box, the sealing performance is good. When the distance between the edge of the box and the rangefinder 4021 is different, it indicates a problem with the sealing of the packaging box. When the rangefinder 4021 detects a packaging box with a poor seal, it will alert the system and prompt the staff to reprocess the defective packaging box. Three sets of fixing grooves c4022 are equidistantly arranged inside the support base b402. The fixing grooves c4022 facilitate the sliding of the guide rod 4023. A properly sealed packaging box has a certain supporting force on its surface. When the guide rod 4023 descends and contacts the DuPont paper, if the guide rod 4023 does not encounter resistance, it will continue to descend, allowing the DuPont paper to be properly sealed. If the DuPont paper is not stuck together, the edges will be more noticeably raised. If the packaging box is well sealed, the DuPont paper will push the guide rod 4023 back into the fixing groove c4022. The guide rod 4023 is slidably inserted into the fixing groove c4022. The guide rod 4023 is used to press down on the DuPont paper. The end of the guide rod 4023 is rounded. At the same time, three sets of guide rods 4023 are provided to help distribute the pressure and prevent the guide rod 4023 from puncturing the DuPont paper. Two sets of sliding grooves b4024 are symmetrically opened on both sides of the support base b402. Sliding sliders are slidably inserted into the sliding grooves b4024. By setting... The sliding groove b4024 and the slider help the support base b402 and the sliding block 403 to slide relative to each other while connected, thereby facilitating the positioning component 404 to complete the positioning correction of the loading component 2. The guide rod 4023 on the support base b402 then contacts the DuPont paper. In order to ensure the ability to test the four-sided sealing of the packaging paper, the guide rod 4023 only presses up and down on the center line of the DuPont paper. The same set of sliding blocks 403 are fixedly installed on the two sets of sliders on the same side. Two sets of positioning components 404 are provided on one side of the sliding block 403. The positioning component 404 is used to position and correct the position of the loading component 2.

[0047] The positioning assembly 404 includes a positioning support 4041 fixedly mounted on one side of the sliding block 403. The positioning support 4041 supports the connection between the rotating shaft 4042 and the sliding block 403. The rotating shaft 4042 is located on one side of the sliding block 403 so that after the push plate 4044 rotates 90 degrees, it can fit tightly against the side wall of the workstation seat 201. The rotating shaft 4042 is rotatably mounted on the positioning support 4041. The rotating shaft 4042 facilitates the half gear 4043 to drive the push plate 4044 to rotate together on the positioning support 4041. The half gear 4043 and the push plate 4044 are fixedly mounted on the rotating shaft 4042. The sliding block 403 has two sets of sliding grooves c4031. By setting the sliding grooves c4031, it is easy to limit the rack 4045. The lifting range is such that a rack 4045 is slidably inserted in the sliding groove c4031, and the rack 4045 meshes with the half gear 4043 for transmission. By setting the half gear 4043 and the rack 4045, the rack 4045 controls the rotation of the half gear 4043. A counterweight block 4046 is fixedly installed at the bottom of the rack 4045. By setting the counterweight block 4046, when the support base b402 rises, the rack 4045 loses the upward pushing force of the workstation 201. Due to the meshing relationship between the half gear 4043 and the rack 4045, the rack 4045 cannot descend on its own to allow the push plate 4044 to return to its initial rotation angle. The counterweight block 4046 can increase the counterweight of the rack 4045, making it easier for the rack 4045 to descend and reset.

[0048] Working principle: When the electric push rod b401 descends, it pushes the support base b402 to descend. The sliding block 403 descends along with the support base b402. The counterweight block 4046 first contacts the workstation seat 201. As the support base b402 continues to descend, the rack 4045 on the counterweight block 4046 pushes the rack 4045 back to control the rotation of the half gear 4043. The rotating shaft 4042 on the half gear 4043 then drives the push plate 4044 to move together. The push plates 4044 on both sides of the loading component 2 rotate relative to each other, thereby completing the calibration of the workstation seat 201. The counterweight 4046 is inserted into the positioning slot 204 during the descent or after calibration. Then, the support seat b402 continues to descend, causing the end of the guide rod 4023 to contact the DuPont paper. The guide rod 4023 presses down on the center line of the DuPont paper. The rangefinder 4021 calculates and compares the distance between the DuPont paper and its four sides, thereby achieving the purpose of detecting the sealing of the packaging box.

[0049] Example 5:

[0050] The method of using the above-mentioned thermoplastic part heat-welding device includes the following steps:

[0051] S1: Place the packaging box in the fixing slot b203, place the medical auxiliary equipment in the packaging box, place the DuPont paper in the fixing slot a202, run the conveyor belt 102, and transport the loading component 2 into the rack 101.

[0052] S2: The electric push rod a3 pushes the support base a301 down, and the electrically heated pressure block 302 presses the edge of the packaging box and DuPont paper, causing the plastic at the edge of the packaging box to melt into an adhesive and stick to the DuPont paper.

[0053] S3: The heat-sealed loading component 2 is transported to the bottom of the detection component 4 via the conveyor belt 102. The detection component 4 descends to position it. The cooling component 5 cools the inside of the loading component 2. The guide rod 4023 works with the rangefinder 4021 to detect the sealing of the packaging box.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermoplastic part heat-welding device, comprising a base (1), wherein a conveyor belt (102) is disposed on the base (1), characterized in that, The conveyor belt (102) is provided with multiple sets of loading components (2) for carrying packaging boxes. A frame (101) is fixedly connected to the base (1). The frame (101) is provided with a heat sealing component for pressing DuPont paper and packaging boxes and a detection component (4) for detecting the sealing performance of packaging boxes. Cooling components (5) for assisting the cooling of the loading components (2) are provided on both sides of the base (1). The heat sealing assembly includes an electric push rod a (3) fixedly installed on the frame (101), and a support seat a (301) is fixedly installed on the telescopic end of the electric push rod a (3), and a pressure block (302) is fixedly installed on the support seat a (301). The detection component (4) includes an electric push rod b (401) fixedly installed on the frame (101). The telescopic end of the electric push rod b (401) is fixedly connected to a support base b (402). A rangefinder (4021) is fixedly installed at the bottom of the support base b (402). Three sets of fixing slots c (4022) are equally spaced in the support base b (402). A guide rod (4023) is slidably inserted into the fixing slot c (4022). The guide rod (4023) is used to press down the center line of the DuPont paper when the support base b (402) is pressed down, so that the edge of the unbonded DuPont paper will lift up when the seal is not good; The rangefinder (4021) is used to measure the distance between the four edges of the DuPont paper and the rangefinder (4021), and to determine the airtightness of the packaging box based on whether the distance is consistent and / or changes. The support base b (402) has two sets of sliding grooves b (4024) symmetrically opened on both sides. A slider is slidably inserted on the sliding groove b (4024). The same set of sliding blocks (403) is fixedly installed on the two sets of sliders on the same side. Two sets of positioning components (404) are provided on one side of the sliding block (403).

2. The thermoplastic part heat-welding device according to claim 1, characterized in that, The positioning component (404) includes a positioning support (4041) fixedly installed on one side of the sliding block (403). A rotating shaft (4042) is rotatably installed on the positioning support (4041). A half gear (4043) and a push plate (4044) are fixedly installed on the rotating shaft (4042). Two sets of sliding grooves c (4031) are opened on the sliding block (403). A rack (4045) is slidably inserted in the sliding groove c (4031), and the rack (4045) meshes with the half gear (4043) for transmission. A counterweight (4046) is fixedly installed at the bottom of the rack (4045).

3. The thermoplastic part heat-welding device according to claim 2, characterized in that, The loading assembly (2) includes a workstation (201), on which a fixing groove a (202) and a fixing groove b (203) are provided, and positioning grooves (204) are provided on both sides of the workstation (201).

4. The thermoplastic part heat-welding device according to claim 3, characterized in that, The workstation (201) is provided with a water cooling tank (205), and the loading assembly (2) is provided with connection holes (206) on both sides.

5. A thermoplastic part heat-welding device according to claim 4, characterized in that, The loading component (2) has four sets of sliding grooves a (2011) equidistantly spaced at the bottom. Support members (2012) are slidably inserted into the sliding grooves a (2011). A connecting shaft (2013) is installed on the two sets of support members (2012) opposite to each other. The connecting shaft (2013) is fixedly installed on the conveyor belt (102).

6. A thermoplastic part heat-welding device according to claim 5, characterized in that, The cooling assembly (5) includes a water tank (501) fixedly installed on one side of the base (1), a water pipe (502) fixedly installed on the water tank (501), and the end of the water pipe (502) passes through the frame (101). A fixing member (503) is fixedly installed on the water pipe (502), and two sets of electric push rods c (504) are fixedly installed on the fixing member (503), and the end of the electric push rod c (504) is fixedly installed inside the frame (101).

7. A method of using the thermoplastic part heat-welding device according to claim 1, characterized in that, Includes the following steps: S1: Place the packaging box in the fixed slot b (203), place the medical auxiliary equipment in the packaging box, place the DuPont paper in the fixed slot a (202), run the conveyor belt (102) to transport the loading assembly (2) to the rack (101); S2: The electric push rod a (3) pushes the support seat a (301) down, and the electrically heated pressure block (302) presses the edge of the packaging box and DuPont paper, so that the plastic on the edge of the packaging box melts into an adhesive and sticks the DuPont paper together. S3: The heat-sealed loading assembly (2) is transported to the bottom of the detection assembly (4) via the conveyor belt (102). The detection assembly (4) descends to position it. The cooling assembly (5) cools the inside of the loading assembly (2). The guide rod (4023) presses down on the center line of the DuPont paper. The rangefinder (4021) calculates and compares whether the distance between the four edges of the DuPont paper and the rangefinder (4021) is consistent and / or changes, in order to detect the sealing of the packaging box.

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