Thermoplastic processing apparatus for a liquid media storage bag

Abstract

The utility model discloses a kind of thermoplastic processing equipment of liquid culture medium storage bag, it is related to thermoplastic processing technical field, including rack, the inner cavity below of the rack is provided with article placing plate, the top of the rack is provided with thermoplastic mechanism, the below of the thermoplastic mechanism is provided with positioning mechanism for being fixed to the product to be processed, positioning mechanism includes: down unit and elastic unit, elastic unit is set below down unit, pressing plate is driven under the elastic force of spring, adaptive pressure is passed through connecting rod and sliding link block transmission, cooperate bottom rubber pad to enhance friction, ensure that liquid culture medium storage bag is stably flattened on article placing plate before thermoplastic. This design effectively eliminates bag body wrinkle and uneven stress problem, substantially improve the flatness and mechanical strength of heat seal. At the same time, the rigidity of the fixed strip reinforcing structure additionally added in pressing plate top strengthens, avoid pressing plate deformation, further guarantee sealing consistency, reduce the rate of defective product.

Description

Technical Field

[0001] This utility model relates to the field of thermoplastic processing technology, specifically to a thermoplastic processing device for a liquid culture medium storage bag. Background Technology

[0002] Thermoplastic processing equipment for liquid culture medium storage bags is an industrial equipment specifically designed for the production of liquid culture medium storage bags. Its core function lies in ensuring the sealing, corrosion resistance, and safety of the storage bags through thermoplastic processing technology.

[0003] According to the patent titled "A Thermoplastic Device for Culture Medium Packaging Bags" (Patent Publication No.: CN212557095U, Patent Publication Date: 2021-02-19), the device includes a frame and a conveyor belt. The frame consists of two sets, positioned on both sides of the conveyor belt. Each set includes two vertical supports and a horizontal support at the top of the vertical supports. A transmission mechanism is located in the middle of one horizontal support. The transmission mechanism includes a cylinder located in the middle of the horizontal support. A sliding plate is connected to the front end of the cylinder's piston rod. Guide rods parallel to the cylinder's piston rod pass through both ends of the sliding plate. The two ends of the guide rods are fixed to the vertical supports. A heat-sealing plate is fixed on the side of the sliding plate away from the cylinder. A fixing plate is located on the side opposite the sliding plate, and a second heat-sealing plate is mounted on the fixing plate. Electric heating elements are installed in both heat-sealing plates. First, preheat the electric heating element, then place the packaging bag containing the culture medium on the conveyor belt. When the packaging bag is conveyed between heat sealing plate one and heat sealing plate two, start the cylinder to make the sliding plate slide along the guide rod to heat seal the opening of the plastic packaging bag.

[0004] Based on the aforementioned existing technology, the current thermoplastic processing equipment for liquid culture medium storage bags still has the following problems: when the existing thermoplastic processing equipment for liquid culture medium storage bags is not equipped with a dedicated fixing mechanism, the pressure applied by the heat sealing plate may cause the bag to wrinkle or be unevenly stressed, reducing the flatness of the seal and mechanical strength. Therefore, this utility model provides a thermoplastic processing equipment for liquid culture medium storage bags. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a thermoplastic processing device for liquid culture medium storage bags, which solves the following problems that existing thermoplastic processing devices for liquid culture medium storage bags still have: when existing thermoplastic processing devices for liquid culture medium storage bags are not equipped with a dedicated fixing mechanism, the pressure applied by the heat sealing plate may cause the bag to wrinkle or be unevenly stressed, reducing the flatness of the seal and mechanical strength.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thermoplastic processing device for liquid culture medium storage bags, comprising a frame, a shelf disposed below the inner cavity of the frame, a thermoplastic mechanism disposed above the frame, and a positioning mechanism disposed below the thermoplastic mechanism for fixing the product to be processed, the positioning mechanism comprising:

[0007] The downward pressure unit, located below the thermoplastic mechanism, is used to provide downward pressure.

[0008] The pressing unit includes a set of mounting bases. The mounting bases have rectangular slots inside, and sliding columns are fixedly installed inside the rectangular slots. A fixing block is fixedly installed in the middle of the sliding columns. The sliding block is pushed by the spring force to move the pressure plate downward to fix the product to be processed.

[0009] An elastic unit, located below the pressing unit, includes a pressure plate, which fixes the position of the product to be processed by pressing down on the pressure plate.

[0010] Preferably, a rubber pad is fixedly installed below the pressure plate, and the pressure plate contacts and presses down on the product to be processed through the rubber pad, thereby increasing the friction between the pressure plate and the product to be processed.

[0011] Preferably, a number of fixing strips are fixedly installed on the top of the pressure plate to increase the rigidity of the pressure plate.

[0012] Preferably, a connecting block is fixedly installed at each of the four top corners of the pressure plate, a connecting rod is rotatably installed inside the connecting block, and a sliding connecting block is rotatably installed at one end of the connecting rod.

[0013] Preferably, the sliding block is located on the surface of the sliding column to adapt to sliding, and a spring is installed between the fixed block and the sliding block.

[0014] Preferably, the thermoplastic mechanism includes two sets of limiting posts fixedly installed on the left and right sides of the frame. Sliding blocks are slidably installed on the surface of each limiting post. A thermoplastic plate is fixedly installed on the inner side of each sliding block, and a mounting base is fixedly installed on the bottom of the thermoplastic plate. Lead screws are rotatably installed on both the left and right sides of the frame. The top end of each lead screw passes through the top rod of the frame and is fixedly fitted with a large conical tooth. Threaded sleeves are fixedly installed on both the left and right sides of the thermoplastic plate, and the threaded sleeves are rotatably installed on the surface of the lead screw. A fixing plate is fixedly installed on the top of the frame. A dual-axis motor is fixedly installed on the top of the fixing plate, and small conical teeth are fixedly installed at both ends of the dual-axis motor, with the small conical teeth meshing with the large conical teeth. A protective cover is fixedly installed on the top of the fixing plate to protect the drive structure of the thermoplastic mechanism.

[0015] This invention provides a thermoplastic processing device for liquid culture medium storage bags. Compared with the prior art, it has the following advantages:

[0016] 1. The thermoplastic processing equipment for this liquid culture medium storage bag uses a pressure plate driven by a spring. Through a connecting rod and sliding block, adaptive pressure is transmitted, and a bottom rubber pad enhances friction, ensuring the liquid culture medium storage bag is stably flattened on the placement plate before thermoplasticizing. This design effectively eliminates bag wrinkles and uneven stress, significantly improving the flatness and mechanical strength of the heat seal. Simultaneously, a fixing strip added to the top of the pressure plate strengthens the structural rigidity, preventing plate deformation and further ensuring sealing consistency and reducing the defect rate.

[0017] 2. The thermoplastic processing equipment for this liquid culture medium storage bag features a positioning mechanism linked to the thermoplastic plate via a mounting base. This allows the pressure plate to press down synchronously with the thermoplastic action, creating an automated process of positioning followed by heat sealing. The spring's elastic cushioning design accommodates storage bags of varying thicknesses, preventing excessive compression and product damage. This integrated structure not only simplifies operation and improves production efficiency but also enhances the durability of the drive components through a protective cover design, adapting to the clean environment requirements of liquid culture medium packaging. Attached Figure Description

[0018] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional perspective view of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the positioning mechanism of this utility model;

[0021] Figure 4 This is a cross-sectional perspective view of the positioning mechanism of this utility model.

[0022] In the diagram: 1-Frame, 2-Positioning mechanism, 21-Pressing unit, 211-Mounting base, 212-Rectangular groove, 213-Sliding column, 214-Fixing block, 215-Spring, 22-Elastic unit, 221-Sliding connecting block, 222-Connecting rod, 223-Connecting block, 224-Pressure plate, 225-Fixing strip, 226-Rubber pad, 3-Placement plate, 4-Thermoplastic mechanism, 41-Limiting column, 42-Sliding block, 43-Thermoplastic plate, 44-Screw rod, 45-Threaded sleeve, 46-Large bevel gear, 47-Fixing plate, 48-Dual-axis motor, 49-Small bevel gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A thermoplastic processing device for liquid culture medium storage bags includes a frame 1, a shelf 3 disposed below the inner cavity of the frame 1, a thermoplastic mechanism 4 disposed above the frame 1, and a positioning mechanism 2 disposed below the thermoplastic mechanism 4 for fixing the product to be processed. The positioning mechanism 2 includes:

[0026] The pressing unit 21 is located below the thermoplastic mechanism 4 and is used to provide downward pressure.

[0027] The pressing unit 21 includes a set of mounting bases 211. The mounting base 211 has a rectangular groove 212 inside, and a sliding column 213 is fixedly installed inside the rectangular groove 212. A fixing block 214 is fixedly installed in the middle of the sliding column 213. The spring 215 pushes the sliding connecting block 221 in conjunction with the connecting rod 222 to move the pressure plate 224 downward to fix the product to be processed.

[0028] The elastic unit 22 is located below the pressing unit 21 and includes a pressure plate 224. The position of the product to be processed is fixed by pressing down the pressure plate 224.

[0029] The pressure plate 224 pre-presses the storage bag before heat sealing to eliminate bag displacement or wrinkles, ensuring that the pressure is uniform when the thermoplastic plate 43 is applied, significantly improving the flatness and sealing reliability of the seal, and solving the sealing quality problem caused by the lack of a fixing mechanism in traditional equipment.

[0030] In this embodiment, a rubber pad 226 is fixedly installed below the pressure plate 224. The pressure plate 224 contacts and presses down on the product to be processed through the rubber pad 226, thereby increasing the friction between the pressure plate 224 and the product to be processed.

[0031] The 226 rubber pad significantly increases the friction between the pressure plate and the bag body, preventing the bag body from sliding or shifting during the thermoforming process; at the same time, its elastic material avoids damaging the bag body, ensuring both positioning stability and product protection.

[0032] In this embodiment, a number of fixing strips 225 are fixedly installed on the top of the pressure plate 224 to increase the rigidity of the pressure plate 224.

[0033] The fixing strip 225 significantly enhances the bending rigidity of the pressure plate, preventing deformation due to uneven force during pressing, ensuring that the pressure is evenly transmitted to the entire surface of the bag, and further guaranteeing the consistency of the sealing area.

[0034] In this embodiment, connecting blocks 223 are fixedly installed at the four top corners of the pressure plate 224, and connecting rods 222 are rotatably installed inside the connecting blocks 223. A sliding connecting block 221 is rotatably installed at one end of the connecting rods 222.

[0035] The four-corner linkage design enables the pressure plate 224 to have self-adjusting leveling capability. Even if the shelf 3 or the surface of the bag is slightly tilted, the pressure plate can still be kept horizontally pressed down, avoiding excessive local pressure that could cause the bag to deform or the seal to be uneven.

[0036] In this embodiment, the sliding block 221 is located on the surface of the sliding column 213 to adapt to sliding, and a spring 215 is installed between the fixed block 214 and the sliding block 221.

[0037] Spring 215 pushes sliding block 221 through elastic force to transmit flexible pressure via connecting rod 222, so that pressure plate 224 automatically adapts to storage bags of different thicknesses; when overloaded, spring is compressed to buffer and prevent damage to the bag body, achieving high compatibility and safety.

[0038] In this embodiment, the thermoplastic mechanism 4 includes two sets of limiting posts 41 fixedly installed on the left and right sides of the frame 1. Sliding blocks 42 are slidably installed on the surface of the limiting posts 41. A thermoplastic plate 43 is fixedly installed on the inner side of the sliding block 42, and the mounting base 211 is fixedly installed on the bottom of the thermoplastic plate 43. Lead screws 44 are rotatably installed on both the left and right sides of the frame 1. The top end of the lead screw 44 passes through the top rod of the frame 1 and is fixedly installed with a large bevel tooth 46. Threaded sleeves 45 are fixedly installed on both the left and right sides of the thermoplastic plate 43, and the threaded sleeves 45 are rotatably installed on the surface of the lead screw 44. A fixing plate 47 is fixedly installed on the top of the frame 1. A dual-axis motor 48 is fixedly installed on the top of the fixing plate 47, and small bevel teeth 49 are fixedly installed on both ends of the dual-axis motor 48. The small bevel teeth 49 and the large bevel teeth 46 are meshed together. A protective cover is fixedly installed on the top of the fixing plate 47 to protect the drive structure of the thermoplastic mechanism 4.

[0039] The dual-axis motor 48, model SST43D2126, is electrically connected to an external power source and can be opened and closed via a human-operated control panel. The thermoplastic mechanism 4 uses the dual-axis motor 48 to drive the small bevel gear 49 and the large bevel gear 46 to drive the lead screw 44, so that the threaded sleeve 45 controls the lifting and lowering of the thermoplastic plate 43. The positioning mechanism 2 is linked to the thermoplastic plate through the mounting base 211.

[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0041] During operation, the product to be processed is first placed in the middle of the shelf 3. The thermoplastic plate 43 heats the pressure strip below. The dual-axis motor 48 drives the small bevel gear 49 to rotate. The small bevel gear 49 drives the large bevel gear 46 to rotate. The large bevel gear 46 drives the lead screw 44 to rotate. The lead screw 44 drives the threaded sleeve 45 to move downward. The threaded sleeve 45 drives the thermoplastic plate 43 to move downward synchronously.

[0042] Then, the pressure plate 224 presses down on the product to be processed through the rubber pad 226. The rubber pad 226 pushes the two sliding blocks 221 to move towards each other through the connecting rod 222 to compress the spring 215. The spring 215 pushes the sliding blocks 221 through its own elasticity, providing downward pressure to the pressure plate 224.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermoplastic processing device for a liquid culture medium storage bag, comprising a frame (1), a storage plate (3) disposed below the inner cavity of the frame (1), and a thermoplastic mechanism (4) disposed above the frame (1), characterized in that: A positioning mechanism (2) is provided below the thermoplastic mechanism (4) for fixing the product to be processed. The positioning mechanism (2) includes: The pressing unit (21) is located below the thermoplastic mechanism (4) and is used to provide downward pressure. The pressing unit (21) includes a set of mounting seats (211). The mounting seats (211) have a rectangular groove (212) inside, and a sliding column (213) is fixedly installed inside the rectangular groove (212). A fixing block (214) is fixedly installed in the middle of the sliding column (213). The spring (215) pushes the sliding connecting block (221) to cooperate with the connecting rod (222) to make the pressure plate (224) move downward to fix the product to be processed. The elastic unit (22) is located below the pressing unit (21) and includes a pressure plate (224). The position of the product to be processed is fixed by pressing down the pressure plate (224).

2. The thermoplastic processing equipment for a liquid culture medium storage bag according to claim 1, characterized in that: A rubber pad (226) is fixedly installed below the pressure plate (224). The pressure plate (224) contacts the product to be processed through the rubber pad (226) and presses down, increasing the friction between the pressure plate (224) and the product to be processed.

3. The thermoplastic processing equipment for a liquid culture medium storage bag according to claim 1, characterized in that: Several fixing strips (225) are fixedly installed on the top of the pressure plate (224) to increase the rigidity of the pressure plate (224).

4. The thermoplastic processing equipment for a liquid culture medium storage bag according to claim 1, characterized in that: Connecting blocks (223) are fixedly installed at the four corners of the top of the pressure plate (224). A connecting rod (222) is rotatably installed inside the connecting block (223), and a sliding connecting block (221) is rotatably installed at one end of the connecting rod (222).

5. The thermoplastic processing equipment for a liquid culture medium storage bag according to claim 1, characterized in that: The sliding block (221) is adapted to slide on the surface of the sliding column (213), and a spring (215) is installed between the fixed block (214) and the sliding block (221).

6. The thermoplastic processing equipment for a liquid culture medium storage bag according to claim 1, characterized in that: The thermoplastic mechanism (4) includes two sets of limiting posts (41) fixedly installed on the left and right sides of the frame (1). Sliding blocks (42) are slidably installed on the surface of each limiting post (41). A thermoplastic plate (43) is fixedly installed on the inner side of each sliding block (42), and a mounting base (211) is fixedly installed on the bottom of the thermoplastic plate (43). Lead screws (44) are rotatably installed on both the left and right sides of the frame (1). The top end of each lead screw (44) passes through the top rod of the frame (1) and is fixedly fitted with a large conical tooth (46). The thermoplastic plate (43)... Threaded sleeves (45) are fixedly installed on both the left and right sides, and the threaded sleeves (45) are screwed and rotated on the surface of the lead screw (44). A fixed plate (47) is fixedly installed on the top of the frame (1). A dual-axis motor (48) is fixedly installed on the top of the fixed plate (47), and small bevel teeth (49) are fixedly installed on both ends of the dual-axis motor (48). The small bevel teeth (49) and large bevel teeth (46) are meshed and installed together. A protective cover is fixedly installed on the top of the fixed plate (47) to protect the drive structure of the thermoplastic mechanism (4).

Images