Sealing device for PCR kit production

Abstract

The utility model discloses a sealing device for PCR kit production, and relates to the technical field of kit sealing. The device comprises a rack, a conveying assembly is arranged on the rack, mounting plates are arranged at the two ends of the rack correspondingly, and storage rollers are rotationally arranged on the two mounting plates correspondingly; the mounting frame is arranged on the rack and located between the two mounting plates, an electric push rod is arranged on the mounting frame, a lifting plate is arranged at the piston end of the electric push rod, and a pressing plate is arranged at the bottom of the lifting plate; the first traction piece is arranged on the two mounting plates; the kit is conveyed on the conveying assembly, the film material is horizontally conveyed above the kit, before press-fit sealing is conducted, the two ends of the film material in the length direction are pulled and flattened through the first pulling piece, the two ends of the film material in the width direction are pulled and flattened through the second pulling piece, and after the film material is flattened, the film material is conveyed to the conveying assembly. And the pressing plate is used for pressing the film material on the kit for sealing, so that the sealing quality is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of reagent kit processing equipment, and in particular to a sealing device for producing PCR reagent kits. Background Art

[0002] A test kit is a box used to hold chemical reagents for detecting chemical components, drug residues, virus types, etc. Test kits are widely used in the medical field.

[0003] During the production process of the PCR kit, a sealing device is required to seal the PCR kit. The existing one generally adopts pneumatic sealing, that is, the film material is covered on the box mouth of the kit, and the film material is pressed to seal the kit through the cooperation of pneumatic equipment and a pressure plate. There are many types of film materials, including aluminum film, plastic film, etc. Some pressure plates are heated and then hot-pressed. The existing pneumatic sealing device is generally a transmission line. The film material is transmitted above the transmission line, and the kit is placed on the transmission line for transmission. The pneumatic device drives the pressure plate to move downward to stick the film material to the kit. However, there is a lack of a pulling and flattening structure for the film material. The film material is easily wrinkled due to the stress during transmission, especially on both sides of the width direction of the film material. When the film material is wrinkled, it will be sealed by hot pressing, resulting in poor sealing quality of the kit. Therefore, the present application proposes a sealing device for the production of PCR kits. Utility Model Content

[0004] The purpose of the present application is to solve the problems in the above background and provide a sealing device for the production of PCR kits.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A sealing device for producing a PCR kit, comprising:

[0007] A frame, on which a transmission assembly is arranged, both ends of the frame are provided with mounting plates, and both mounting plates are rotatably provided with placing rollers;

[0008] A mounting frame is arranged on the frame and located between the two mounting plates, an electric push rod is arranged on the mounting frame, a lifting plate is arranged at the piston end of the electric push rod, and a pressing plate is arranged at the bottom of the lifting plate;

[0009] A first pulling member is arranged on the two mounting plates and is used to pull and flatten the two ends of the sealing film in the length direction;

[0010] A second pulling member is arranged on the frame and is used to pull and flatten the two ends of the sealing film in the width direction;

[0011] The cutting piece is arranged at the bottom of the lifting plate and is used for cutting the sealing film.

[0012] Furthermore, the first pulling member includes two first brackets, and the two first brackets are respectively arranged on opposite sides of the lifting plate. A first contact wheel is rotatably arranged at the end of the first bracket, and guide rollers are rotatably arranged on the two mounting plates. A through groove is penetrated through the two mounting plates, and a vertical rod is arranged on the opposite side of the inner wall of the through groove. A movable block is slidably sleeved on the vertical rod, and a first spring sleeved on the vertical rod is installed between the movable block and the inner wall of the through groove, and a tensioning roller is rotatably arranged on the movable block.

[0013] Furthermore, the second pulling member includes two second brackets, both of which are arranged on the frame, and the ends of the second brackets are rotatably provided with supporting wheels. The lifting plate is provided with third brackets on both opposite sides, and the ends of the third brackets are rotatably provided with second interference wheels, and the two second interference wheels correspond one by one to the two supporting wheels respectively.

[0014] Furthermore, the third bracket is hingedly arranged on the lifting plate, and an elastic member is connected between the lifting plate and the third bracket.

[0015] Furthermore, the elastic member includes a sleeve fixed on the lifting plate, a support rod is movably inserted in the sleeve, a second spring is connected between the sleeve and the support rod, a sliding groove is penetrated through the third bracket, and a sliding rod slidably inserted in the sliding groove is provided at the end of the support rod.

[0016] Furthermore, a plurality of guide rods are slidably penetrated in an array on the lifting plate, a limit block is arranged on the top of the guide rod, a pressure plate is arranged on the bottom of the plurality of guide rods, and a third spring sleeved on the guide rod is installed between the lifting plate and the pressure plate.

[0017] Furthermore, the cutting piece includes a cutting frame, which is arranged at the bottom of the lifting plate and is sleeved with the pressing plate.

[0018] Furthermore, the transmission assembly includes two transmission rollers, which are rotatably arranged at the two ends of the frame respectively, and a transmission belt is wound around the two transmission rollers. A plurality of supporting rollers are rotatably arranged on the opposite side of the inner wall of the frame and below the mounting frame, and the plurality of supporting rollers are in contact and overlap with the inner top surface of the transmission belt.

[0019] The beneficial effects of the present application are as follows: In the present application, the test kit is transported on the transport assembly, and the film material is transported horizontally above the test kit. Before pressing and sealing, the two ends of the film material in the length direction are first pulled and flattened by a first pulling member, and the two ends of the film material in the width direction are pulled and flattened by a second pulling member. After the film material is flattened, the film material is pressed and held on the test kit by a pressing plate for sealing to ensure the sealing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of this application;

[0021] Figure 2 It is a sectional view of the three-dimensional structure of the present application;

[0022] Figure 3 It is another three-dimensional structural cross-sectional view of the present application;

[0023] Figure 4 It is a plan elevation view of the present application;

[0024] Figure 5 This application Figure 2 Enlarged view of point A in the middle;

[0025] Figure 6 This application Figure 3 Enlarged view of point B in the middle;

[0026] Figure 7 This application Figure 4 Enlarged view of point C in the middle;

[0027] Figure numerals: 1, frame; 2, transmission component; 3, mounting plate; 4, storage roller; 5, mounting frame; 6, electric push rod; 7, lifting plate; 8, pressing plate; 9, first pulling member; 10, second pulling member; 11, cutting member; 12, elastic member; 13, guide rod; 14, third spring; 201, transmission roller; 202, transmission belt; 203, supporting roller; 901, first bracket; 902, first resistance Wheel; 903, guide roller; 904, through groove; 905, vertical rod; 906, movable block; 907, first spring; 908, tensioning roller; 1001, second bracket; 1002, supporting wheel; 1003, third bracket; 1004, second resistance wheel; 1101, cutting frame; 1201, sleeve; 1202, support rod; 1203, second spring; 1204, slide groove; 1205, slide rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0029] like Figure 1-Figure 7 As shown, a sealing device for PCR kit production proposed in one embodiment of the present application includes:

[0030] A frame 1 is provided with a transmission component 2, and mounting plates 3 are provided at both ends of the frame 1. Placement rollers 4 are rotatably provided on the two mounting plates 3. The transmission component 2 is used to place and transport the test kit, one of the placement rollers 4 is used to wind the film material, and the end of the film material is connected to the other placement roller 4. The two placement rollers 4 rotate under the action of the driving mechanism, so as to transport the film material; a mounting frame 5 is provided on the frame 1 and is located between the two mounting plates 3, and an electric push rod 6 is provided on the mounting frame 5. A lifting plate 7 is provided at the piston end of the electric push rod 6, and a pressing plate 8 is provided at the bottom of the lifting plate 7. When the electric push rod 6 works, its piston end drives the lifting plate 7 to rise and fall, so that the pressing plate 8 can press the film material onto the test kit. Preferably, the pressing plate 8 can be an electric heating plate, which can be heated and then combined with pressure for hot pressing and heat sealing; a first pulling member 9 is provided on the two mounting plates 3, and is used to pull and flatten the two ends of the sealing film in the length direction, and a second pulling member 10 is provided on the frame 1, and is used to The two ends of the sealing film are pulled and flattened in the width direction; through the setting of the first pulling member 9, the two ends of the film material in the length direction can be pulled and flattened, and the two ends of the film material in the width direction can be pulled and flattened by the second pulling member 10, so that the film material to be sealed is in a flat state, so that the pressing plate 8 is more flat after pressing the film material to be sealed on the reagent box, thereby ensuring the sealing quality after hot pressing. The cutting member 11 is arranged at the bottom of the lifting plate 7, which is used to cut the sealing film. Preferably, the width of the film material is generally wider than the width of the reagent box. Therefore, when the film material is pressed and covered with the opening port of the reagent box, there will be excess film material. The cutting member 11 is not only used to cut the excess film material so that it is separated from the reagent box, which is not only convenient for the transmission and sealing of the reagent box, but also convenient for the winding and collection of the excess film material. The overall structure of the device utilizes the first pulling member 9 and the second pulling member 10 to pull and flatten the film material in the length direction and the width direction respectively, thereby ensuring that the film material is in a flat state and improving the sealing effect of the reagent box.

[0031] like Figure 5 and Figure 7 As shown, in some embodiments, the first pulling member 9 includes two first brackets 901, and the two first brackets 901 are respectively arranged on the opposite sides of the lifting plate 7. The end of the first bracket 901 is rotatably provided with a first contact wheel 902. Preferably, the first contact wheel 902 is lower than the pressure plate 8. When the lifting plate 7 moves downward, the first contact wheel 902 will contact the film material before the pressure plate 8. Guide rollers 903 are rotatably provided on the two mounting plates 3. Through grooves 904 are penetrated on the two mounting plates 3. Vertical rods 905 are provided on the opposite sides of the inner walls of the through grooves 904. A movable block 906 is slidably sleeved on the vertical rod 905. A first spring 907 sleeved on the vertical rod 905 is installed between the movable block 906 and the inner wall of the through groove 904. A tensioning roller 908 is rotatably provided on the movable block 906. Figure 2 , Figure 4 and Figure 7 As shown, after the two ends of the film material are respectively wound around the two placement rollers 4, the film material is first wound around the guide roller 903 and then around the tensioning roller 908. At this time, the film material is located in a section between the two tensioning rollers 908 and remains in a horizontal state. When the reagent kit is transmitted on the transmission component 2, the reagent kit is located below the film material. During the pressing, the lifting plate 7 moves down, so that the two first contact wheels 902 respectively contact the two ends of the length direction of the film material. The first contact wheel 902 rolls and contacts with the film material. Since the movable block 906 is slidably mounted on the vertical rod 905, when the first contact wheel 902 contacts the film material, the movable block 906 will slide along the vertical rod 905 and squeeze the first spring 907. The elastic characteristics of the first spring 907 are used to make the movable block 906 adaptively slide and adjust. The contact of the two first contact wheels 902 cooperates with the elasticity of the first spring 907, thereby pulling and flattening the two sides of the length direction of the film material.

[0032] like Figure 3 and Figure 6 As shown, in some embodiments, the second pulling member 10 includes two second brackets 1001, and the two second brackets 1001 are both arranged on the frame 1. The end of the second bracket 1001 is rotatably provided with a supporting wheel 1002. Preferably, the supporting wheel 1002 is flush with the top of the reagent box. The lifting plate 7 is provided with a third bracket 1003 on both opposite sides. The end of the third bracket 1003 is rotatably provided with a second contact wheel 1004. The two second contact wheels 1004 correspond to the two supporting wheels 1002 one by one, respectively. The second contact wheel 1004 is at the same height as the first contact wheel 902. When the lifting plate 7 moves downward, the second contact wheel 1004 will contact the film material before the pressing plate 8. Preferably, the corresponding second contact wheels 1004 and the supporting wheels 1002 are misaligned. It is arranged that when the lifting plate 7 moves downward, the second contact wheel 1004 will overlap with the supporting wheel 1002 and the two can be in a horizontal state. When the lifting plate 7 moves downward, the two sides of the width direction of the film material will be overlapped on the two supporting wheels 1002 respectively. The two second contact wheels 1004 respectively cooperate with the two supporting wheels 1002 to roll and squeeze the two sides of the width direction of the film material. When the corresponding second contact wheels 1004 and supporting wheels 1002 overlap, as the lifting plate 7 continues to move downward, the second contact wheel 1004 will drive the supporting wheels 1002 to rotate synchronously in the opposite direction, thereby driving the film material to move. Under the action of the second supporting wheels 1002 and the second contact wheels 1004 on both sides, the two sides of the film material in the width direction are pulled and flattened, thereby ensuring the flatness of the film material and the sealing quality.

[0033] like Figure 3 and Figure 6As shown, in some embodiments, the third bracket 1003 is hingedly arranged on the lifting plate 7, and an elastic member 12 is connected between the lifting plate 7 and the third bracket 1003. By hingedly connecting the third bracket 1003 to the lifting plate 7 and elastically connecting through the elastic member 12, when the lifting plate 7 moves downward, after the second contact wheel 1004 overlaps with the supporting wheel 1002, under the stress of the overlap, the third bracket 1003 can be rotated and corrected around the hinge point. At the same time, the elastic force of the elastic member 12 is used for resistance, so that the second contact wheel 1004 and the supporting wheel 1002 can ensure effective resistance to the film material, and at the same time, avoid hard resistance. When the film material is flattened to a flat state, the film material will not be excessively pulled to cause it to break, thereby improving practicality.

[0034] like Figure 6 As shown, in some embodiments, the elastic member 12 includes a sleeve 1201 fixed on the lifting plate 7, a support rod 1202 is movably inserted in the sleeve 1201, a second spring 1203 is connected between the sleeve 1201 and the support rod 1202, a slide groove 1204 is penetrated through the third bracket 1003, and a slide rod 1205 slidably inserted in the slide groove 1204 is provided at the end of the support rod 1202. The sleeve 1201, the support rod 1202 and the second spring 1203 form a spring telescopic rod, and through the sliding cooperation of the slide rod 1205 and the slide groove 1204, the end of the spring telescopic rod is slidably connected to the third bracket 1003, so that it can not only apply elastic force to the third bracket 1003, but also does not affect the rotation of the third bracket 1003 around the hinge point.

[0035] like Figure 5 As shown, in some embodiments, a plurality of guide rods 13 are slidably penetrated in an array on the lifting plate 7, a limit block is provided on the top of the guide rod 13, a pressing plate 8 is provided at the bottom of the plurality of guide rods 13, and a third spring 14 sleeved on the guide rod 13 is installed between the lifting plate 7 and the pressing plate 8. When the lifting plate 7 moves downward, the pressing plate 8 drives the film material to contact the reagent kit. When the pressing plate 8 overlaps with the film material and the reagent kit, the lifting plate 7 can continue to move downward, so that the lifting plate 7 squeezes the third spring 14. The elastic force of the third spring 14 can buffer the pressure of the lifting plate 7 to avoid the pressing plate 8 from squeezing the reagent kit hard, thereby improving practicality.

[0036] like Figure 5 and Figure 6As shown, in some embodiments, the cutting piece 11 includes a cutting frame 1101, which is arranged at the bottom of the lifting plate 7 and is sleeved with the pressing plate 8. Preferably, the bottoms of the four sides of the cutting frame 1101 all have cutting edges, and the pressing plate 8 is slidably inserted in the cutting frame 1101. The pressing plate 8 is lower than the cutting frame 1101 under the action of the guide rod 13. When the lifting plate 7 moves downward, the pressing plate 8 first contacts the film material. As the lifting plate 7 moves downward, the pressing plate 8 slides and shrinks into the cutting frame 1101, and the four sides of the cutting frame 1101 cut the film material, so that the remaining film material that is not pressed is cut and separated from the sealed film material.

[0037] like Figure 2 and Figure 3 As shown, in some embodiments, the transmission component 2 includes two transmission rollers 201, and the two transmission rollers 201 are rotatably arranged at the two ends of the frame 1 respectively. A transmission belt 202 is transmitted and wound around the two transmission rollers 201. The transmission rollers 201 rotate under the action of the motor, thereby driving the transmission belt 202 to transmit. A plurality of supporting rollers 203 are rotatably arranged on the opposite side of the inner wall of the frame 1 and located below the mounting frame 5. The plurality of supporting rollers 203 are all in contact with and overlap the inner top surface of the transmission belt 202. Through the setting of the supporting rollers 203, when the test kit is transmitted to the bottom of the mounting frame 5, the supporting rollers 203 can provide interval support for the test kit to ensure the hot pressing and sealing effect.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing device for PCR kit production, characterized in that: include: A frame (1) on which a transmission assembly (2) is arranged, and mounting plates (3) are arranged at both ends of the frame (1), and both mounting plates (3) are rotatably provided with placement rollers (4); A mounting frame (5) is arranged on the frame (1) and is located between the two mounting plates (3); an electric push rod (6) is arranged on the mounting frame (5); a lifting plate (7) is arranged at the piston end of the electric push rod (6); and a pressing plate (8) is arranged at the bottom of the lifting plate (7); A first pulling member (9) is arranged on the two mounting plates (3) and is used to pull and flatten the two ends of the sealing film in the length direction; A second pulling member (10) is arranged on the frame (1) and is used to pull and flatten the two ends of the sealing film in the width direction; A cutting piece (11) is arranged at the bottom of the lifting plate (7) and is used for cutting the sealing film.

2. The sealing device for PCR kit production according to claim 1, characterized in that: The first pulling member (9) comprises two first brackets (901), the two first brackets (901) are respectively arranged on opposite sides of the lifting plate (7), a first contact wheel (902) is rotatably arranged at the end of the first bracket (901), a guide roller (903) is rotatably arranged on both the two mounting plates (3), a through slot (904) is penetrated through both the two mounting plates (3), a vertical rod (905) is arranged on the opposite side of the inner wall of the through slot (904), a movable block (906) is slidably sleeved on the vertical rod (905), a first spring (907) sleeved on the vertical rod (905) is installed between the movable block (906) and the inner wall of the through slot (904), and a tensioning roller (908) is rotatably arranged on the movable block (906).

3. The sealing device for PCR kit production according to claim 1, characterized in that: The second pulling member (10) comprises two second brackets (1001), the two second brackets (1001) are both arranged on the frame (1), and the ends of the second brackets (1001) are rotatably provided with supporting wheels (1002), and the lifting plate (7) is provided with third brackets (1003) on two opposite sides, and the ends of the third brackets (1003) are rotatably provided with second conflicting wheels (1004), and the two second conflicting wheels (1004) correspond to the two supporting wheels (1002) one by one.

4. The sealing device for producing a PCR kit according to claim 3, characterized in that: The third bracket (1003) is hingedly arranged on the lifting plate (7), and an elastic member (12) is connected between the lifting plate (7) and the third bracket (1003).

5. The sealing device for PCR kit production according to claim 4, characterized in that: The elastic member (12) comprises a sleeve (1201) fixed on the lifting plate (7), a support rod (1202) being movably inserted in the sleeve (1201), a second spring (1203) being connected between the sleeve (1201) and the support rod (1202), a sliding groove (1204) penetrating the third bracket (1003), and a sliding rod (1205) being slidably inserted in the sliding groove (1204) being provided at the end of the support rod (1202).

6. The sealing device for PCR kit production according to claim 1, characterized in that: A plurality of guide rods (13) are slidably arranged in an array on the lifting plate (7), a limit block is arranged at the top of the guide rod (13), a pressing plate (8) is arranged at the bottom of the plurality of guide rods (13), and a third spring (14) sleeved on the guide rod (13) is installed between the lifting plate (7) and the pressing plate (8).

7. The sealing device for PCR kit production according to claim 1, characterized in that: The cutting piece (11) comprises a cutting frame (1101), which is arranged at the bottom of the lifting plate (7) and is sleeved with the pressing plate (8).

8. The sealing device for PCR kit production according to claim 1, characterized in that: The transmission assembly (2) comprises two transmission rollers (201), the two transmission rollers (201) being rotatably arranged at two ends of the frame (1), respectively, a transmission belt (202) being arranged around the two transmission rollers (201), and a plurality of supporting rollers (203) being rotatably arranged on the opposite side of the inner wall of the frame (1) and located below the mounting frame (5), the plurality of supporting rollers (203) being in contact and overlapped with the inner top surface of the transmission belt (202).

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