Paper-plastic packaging bag heat-sealing mold for medical apparatus and instruments

Abstract

The invention discloses a heat-sealing mold for a paper-plastic packaging bag for medical instruments, and relates to the technical field of medical instrument packaging, and the heat-sealing mold comprises a heat-sealing mold main body, and the heat sealing mold main body comprises a stabilizing mechanism, a first mold structure connected with the stabilizing mechanism, an adaptive mechanism connected with the heat sealing mold main body and a second mold structure connected with the adaptive mechanism. The four metal abutting plates are evenly fixed to the connecting side plates, so that the four connecting side plates and the four sliding plates are driven to move while the sliding plates drive the vertical blocks at the top ends and the attaching abutting plates to move, and an adapting mechanism is conveniently matched to abut against and heat-seal paper-plastic packaging bags of different sizes and shapes; the sealing strength of the heat sealing part of the paper-plastic packaging bag is consistent, the sealing effect is good, medical instruments in the packaging bag cannot be polluted, and the sterility and the safety are good.

Description

Technical Field

[0001] The invention relates to the technical field of medical device packaging, in particular to a heat-sealing mould for a paper-plastic packaging bag for medical devices. Background Art

[0002] After the production of medical devices is completed, they need to be strictly packaged to ensure their sterility and integrity before storage, transportation and use. Paper-plastic packaging bags are widely used in the packaging of medical devices due to their good air permeability, visibility and barrier properties to microorganisms. The packaging of medical devices is crucial to ensure their sterility and integrity during transportation and storage. Paper-plastic packaging bags have been widely used in the field of medical device packaging due to their good barrier properties, visibility and cost-effectiveness. As the key equipment to achieve the sealing of paper-plastic packaging bags, the performance of heat-sealing molds directly affects the quality and reliability of packaging.

[0003] In the packaging process of paper-plastic packaging bags, heat sealing is a key process. The commonly used heat sealing molds have some shortcomings. Traditional heat sealing molds have poor heating stability and uneven heating for paper-plastic packaging bags of different sizes and shapes, resulting in inconsistent sealing strength at the heat-sealed parts of the paper-plastic packaging bags, which is prone to local lax sealing. This is an extremely serious problem in the field of medical device packaging, which may contaminate the medical devices in the package and affect their sterility and safety. For this reason, we propose a heat sealing mold for paper-plastic packaging bags for medical devices. Summary of the invention

[0004] The purpose of the invention is to provide a heat-sealing mould for a paper-plastic packaging bag for medical devices.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A heat-sealing mold for a paper-plastic packaging bag for medical devices, comprising a heat-sealing mold body, wherein the heat-sealing mold body comprises a stabilizing mechanism, a first mold structure connected to the stabilizing mechanism, an adapting mechanism connected to the heat-sealing mold body, and a second mold structure connected to the adapting mechanism;

[0006] The stabilizing mechanism comprises a connecting vertical plate, a first fixing slot, a second fixing slot and a motor, wherein the first fixing slot and the second fixing slot are both arranged on opposite sides of the four connecting vertical plates, and the motor is fixed inside the second fixing slot, and a screw is fixed at the bottom of the motor, and a slider is threadedly connected to the screw;

[0007] The adapter mechanism includes an adapter plate, a telescopic rod, a sliding plate, a vertical block, a fitting abutment plate and an infrared sensor. A central groove is opened in the middle of the adapter plate. The two telescopic rods are arranged and fixed inside the adapter plate. The right end of the sliding plate is fixed to the left end of the telescopic rod. The lower end of the vertical block is fixed to the sliding plate. The lower end of the fitting abutment plate is fixed to the upper end of the vertical block. The infrared sensor is fixed on the fitting abutment plate. The vertical block and the sliding plate slide inside the central groove.

[0008] As a further solution of the present invention: a hydraulic cylinder is fixed inside each of the four first fixing grooves, a lifting block is fixed at the bottom of the hydraulic cylinder, and a sealing cover plate is fixed between the four lifting blocks.

[0009] As a further solution of the present invention: a base is provided in the middle of the heat sealing mold body, receiving blocks are provided at the four corners of the lower end of the base, an anti-slip pad is fixed to the lower end of the receiving block, and a receiving bottom plate is fixed to the upper end of the base.

[0010] As a further solution of the present invention: the second mold structure includes a connecting side plate and a metal abutment plate, the four connecting side plates are fixedly connected to both sides of the sliding plate, and the four metal abutment plates are arranged on the connecting side plates.

[0011] As a further solution of the present invention: a processor and a temperature controller are fixed to the left end of the heat sealing mold body, and the infrared sensor is electrically connected to the processor, and the motor, hydraulic cylinder and telescopic rod are all electrically connected to the processor.

[0012] As a further solution of the present invention: a packaging bag is pressed tightly between the two fitting abutment plates, and a lower mold is arranged between the connecting side plate and the fitting abutment plates.

[0013] As a further solution of the present invention: the first mold structure includes a fixed block, an upper mold and a heat sealing plate, the four sliders are fixedly connected to the fixed blocks, the upper mold is arranged between the four fixed blocks, and the interior of the upper mold is fixedly connected to the heat sealing plate.

[0014] As a further solution of the present invention: a top plate is arranged between the four stabilizing mechanisms, and the size of the first fixing groove is larger than that of the second fixing groove.

[0015] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention arranges a hydraulic cylinder and a lifting block inside the first fixed groove. Meanwhile, a sealing cover plate is fixed between the four lifting blocks. When the hydraulic cylinder is lifted or lowered, the four lifting blocks and the sealing cover plate are lifted or lowered simultaneously. The first fixed groove is arranged so that the hydraulic cylinder and the lifting block are more stable when sliding inside the first fixed groove. Four receiving blocks and anti-skid pads are arranged at the bottom of the base so that the heat sealing mold body can be more stably supported during the working process and has good stability.

[0017] 2. The present invention fixes four connecting side plates on the sliding plate, and four metal abutment plates are evenly fixed on the connecting side plates, so that when the sliding plate drives the vertical block and the fitting abutment plate at the top to move, the four connecting side plates and the four sliding plates are driven to move, so that the matching mechanism can be matched to tighten and heat-seal paper-plastic packaging bags of different sizes and shapes. The sealing strength of the heat-sealed part of the paper-plastic packaging bag is consistent, the sealing effect is good, the medical device inside the packaging bag will not be contaminated, and the sterility and safety are good;

[0018] 3. The present invention drives the lifting block and the sealing cover plate at the bottom through the hydraulic cylinder to cover the upper mold and the lower mold, and stops on the receiving bottom plate, and the heat sealing is completed. The setting of the sealing cover plate facilitates the temperature to be kept stable and the heating to be uniform during the heat sealing process of the packaging bag;

[0019] 4. The present invention heat-seals the paper-plastic packaging bag through a heat-sealing plate, and the heat-sealing plate is made of an aluminum alloy metal material with excellent thermal conductivity, which can quickly and evenly absorb and conduct heat from an external heat source. When the heat-sealing operation is started, heat is continuously transferred to the heat-sealing plate through the metal, so that its surface temperature rises rapidly to reach the heat-sealing temperature value preset by the temperature controller, which can ensure that the plastic layer of the paper-plastic packaging bag reaches a molten state at this temperature, and the heat-sealing effect is good.

[0020] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first stereoscopic schematic diagram in an embodiment of the present invention;

[0022] Figure 2 is a second stereoscopic schematic diagram of an embodiment of the present invention;

[0023] Figure 3 is a three-dimensional schematic diagram of a packaging bag in an embodiment of the present invention;

[0024] Figure 4 for Figure 3 Schematic diagram at B in the middle;

[0025] Figure 5 It is a schematic diagram of the receiving base plate, the adapting mechanism and the second mold structure in an embodiment of the present invention.

[0026] Figure 6 Schematic diagram of the connection structure between the second mold structure and the lower mold in an embodiment of the present invention;

[0027] Figure 7 is a three-dimensional schematic diagram of an adapting mechanism in an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Schematic diagram at A in the middle.

[0029] In the figure: 1. Heat sealing mold body;

[0030] 2. Stabilizing mechanism; 21. Connecting vertical plate; 22. First fixing groove; 23. Second fixing groove; 24. Motor; 25. Screw; 26. Slider; 27. Hydraulic cylinder; 28. Lifting block; 29. ​​Sealing cover plate;

[0031] 3. First mold structure; 31. Fixed block; 32. Upper mold; 33. Heat sealing plate;

[0032] 4. Base; 5. Supporting bottom plate;

[0033] 6. Adaptation mechanism; 61. Adaptation plate; 62. Telescopic rod; 63. Sliding plate; 64. Vertical block; 65. Fitting plate; 66. Infrared sensor;

[0034] 7. Second mold structure; 71. Connecting side plate; 72. Metal abutment plate;

[0035] 8. Lower mold; 9. Packaging bag. DETAILED DESCRIPTION

[0036] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0037] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] Please refer to the attached Figure 1 -Attached Figure 8 The present invention discloses a heat-sealing mold for a paper-plastic packaging bag for medical devices, comprising a heat-sealing mold body 1, wherein the heat-sealing mold body 1 comprises a stabilizing mechanism 2, a first mold structure 3 connected to the stabilizing mechanism 2, an adapting mechanism 6 connected to the heat-sealing mold body 1, and a second mold structure 7 connected to the adapting mechanism 6;

[0039] The stabilizing mechanism 2 includes a connecting vertical plate 21, a first fixing groove 22, a second fixing groove 23 and a motor 24. The first fixing groove 22 and the second fixing groove 23 are both opened on opposite sides of the four connecting vertical plates 21, and the motor 24 is fixed inside the second fixing groove 23. A screw rod 25 is fixed at the bottom of the motor 24, and a slider 26 is threadedly connected to the screw rod 25.

[0040] The adapter mechanism 6 includes an adapter plate 61, a telescopic rod 62, a sliding plate 63, a vertical block 64, a fitting abutment plate 65 and an infrared sensor 66. A central groove is opened in the middle of the adapter plate 61. Two telescopic rods 62 are arranged and fixed inside the adapter plate 61. The right end of the sliding plate 63 is fixed to the left end of the telescopic rod 62. The lower end of the vertical block 64 is fixed to the sliding plate 63. The lower end of the fitting abutment plate 65 is fixed to the upper end of the vertical block 64. The infrared sensor 66 is fixed to the fitting abutment plate 65. The vertical block 64 and the sliding plate 63 slide inside the central groove. A packaging bag 9 is pressed tightly between the two fitting abutment plates 65.

[0041] In the first embodiment, a hydraulic cylinder 27 is fixed inside each of the four first fixing grooves 22, a lifting block 28 is fixed at the bottom of the hydraulic cylinder 27, and a sealing cover plate 29 is fixed between the four lifting blocks 28;

[0042] Specifically, by arranging a hydraulic cylinder 27 and a lifting block 28 inside the first fixed groove 22, and at the same time, a sealing cover plate 29 is fixed between the four lifting blocks 28, when the hydraulic cylinder 27 is lifted or lowered, the four lifting blocks 28 and the sealing cover plate 29 are lifted or lowered simultaneously. By setting the first fixed groove 22, the hydraulic cylinder 27 and the lifting block 28 are more stable when sliding inside the first fixed groove 22, and the lifting block 28 can be guided to lift and lower accurately along a predetermined trajectory in the first fixed groove 22, ensuring that the sealing cover plate 29 can also maintain a horizontal state when following the lifting, so as to better play its sealing function. In addition, the sealing cover plate 29 is fixed in a position on the sealing cover plate 29 by the four lifting blocks 28, so that when the hydraulic cylinder 27 drives the lifting block 28 and the sealing cover plate 29 to lift and lower, the shaking or instability caused by the center of gravity offset can be minimized, thereby further improving the stability and reliability of the entire heat sealing mold body 1 during operation.

[0043] In the second embodiment, a base 4 is provided in the middle of the heat sealing mold body 1, receiving blocks are provided at the four corners of the lower end of the base 4, a non-slip pad is fixed at the lower end of the receiving block, and a receiving bottom plate 5 is fixed at the upper end of the base 4;

[0044] Specifically, by arranging four receiving blocks and anti-skid pads at the bottom of the base 4, the heat sealing mold body 1 can be supported more stably during the working process. At the same time, the four receiving blocks are made of high-strength metal material with good pressure resistance, which can effectively share the downward pressure generated by the heat sealing mold body 1 during operation, and prevent the base 4 from being deformed or damaged due to pressure concentration. The anti-skid pad increases the friction between the heat sealing mold body 1 and the ground on which it is placed. The anti-skid pad is made of a highly elastic, wear-resistant and anti-skid rubber material with good anti-skid properties and is added with anti-skid particles, which can further increase the friction and ensure the stability of the heat sealing mold body 1 during the working process.

[0045] In the third embodiment, the second mold structure 7 includes a connecting side plate 71 and a metal abutment plate 72. The four connecting side plates 71 are fixedly connected to both sides of the sliding plate 63, and the four metal abutment plates 72 are arranged on the connecting side plates 71.

[0046] Specifically, by fixing the four connecting side plates 71 on the sliding plate 63, and the four metal abutment plates 72 are evenly fixed on the connecting side plates 71, the sliding plate 63 drives the vertical block 64 and the fitting abutment plate 65 at the top to move, while driving the four connecting side plates 71 and the four sliding plates 63 to move, so as to facilitate the matching mechanism 6 to press and heat-seal the paper-plastic packaging bags 9 of different sizes and shapes, ensuring that the various parts of the packaging bags 9 are evenly stressed during heat sealing, further ensuring the consistency of the sealing strength and the good sealing effect, and through the collaborative working mechanism, effectively avoiding the contamination of the medical devices inside the packaging bags 9, providing reliable sterility and safety guarantees, the sealing strength of the heat-sealed parts of the paper-plastic packaging bags 9 is consistent, the sealing effect is good, the medical devices inside the packaging bags 9 will not be contaminated, and the sterility and safety are good.

[0047] In the fourth embodiment, a processor and a temperature controller are fixed to the left end of the heat sealing mold body 1, and the infrared sensor 66 is electrically connected to the processor, the motor 24, the hydraulic cylinder 27 and the telescopic rod 62 are all electrically connected to the processor, and a lower mold 8 is provided between the connecting side plate 71 and the fitting plate 65;

[0048] Specifically, the temperature controller uses high-precision temperature sensing technology, which can accurately monitor the temperature of the contact part between the upper mold 32 and the lower mold 8 in real time. When the staff sets the heat sealing temperature on the temperature controller, the temperature controller starts to work. As the upper mold 32 and the lower mold 8 gradually come closer, the heat of the heat sealing plate 33 can quickly and evenly diffuse on its surface, and then transfer to the surface of the paper-plastic packaging bag 9 in close contact with it. Under the action of heat conduction, the plastic layer of the packaging bag 9 quickly absorbs heat, and its temperature rises rapidly. When the heat sealing temperature value preset by the temperature controller is reached, the plastic layer begins to change state. The plastic film 22 changes from a solid state to a semi-molten state suitable for heat sealing. At this time, the motor 24 is started. The motor 24 runs stably according to the preset speed, driving the screw 25 to rotate. Under the rotation of the screw 25, the slider 26 moves downward along the axial direction of the screw 25 at a uniform speed. On the basis of the upper mold 32 having reached the heat sealing temperature, it further applies pressure to the paper-plastic packaging bag 9. Under the action of suitable temperature and pressure, the softened plastic layers on the surface of the paper-plastic packaging bag 9 fuse and squeeze each other to achieve heat sealing, forming a well-sealed and firm heat-sealed area on the packaging bag 9, effectively ensuring the sealing of the medical articles in the packaging bag 9.

[0049] Embodiment 5, the first mold structure 3 includes a fixed block 31, an upper mold 32 and a heat sealing plate 33, the four sliders 26 are fixedly connected with the fixed blocks 31, the upper mold 32 is arranged between the four fixed blocks 31, and the heat sealing plate 33 is fixedly connected inside the upper mold 32;

[0050] Specifically, the present invention is specifically used in medical device packaging. An upper mold 32 is arranged between four fixed blocks 31, and a heat sealing plate 33 is fixedly connected inside the upper mold 32, so that when the upper mold 32 and the lower mold 8 are attached to each other, the heat sealing plate 33 heat-seals the paper-plastic packaging bag 9, and the heat sealing plate 33 is made of an aluminum alloy metal material with excellent thermal conductivity, which can quickly and evenly absorb and conduct heat from an external heat source. When the heat sealing operation is started, heat is continuously transferred to the heat sealing plate 33 through the metal, so that the surface temperature of the heat sealing plate 33 is rapidly increased to reach the heat sealing temperature value preset by the temperature controller, which can ensure that the plastic layer of the paper-plastic packaging bag 9 reaches a molten state at this temperature, and the heat sealing effect is good;

[0051] Specifically, the position of the packaging bag 9 is sensed by the infrared sensor 66, and the processor drives the telescopic rod 62 to drive the sliding plate 63, the vertical block 64 and the fitting plate 65. The infrared sensor 66 transmits the position information of the packaging bag 9 to the processor connected thereto. The processor analyzes and judges the received position signal according to the preset program logic, and after confirming the effective signal that needs to be pressed, it will send a corresponding instruction to the motor 24. The motor 24 simultaneously drives the four sliders 26 on the screw 25 and the upper mold 32 to move downward to the lower mold 8. The fitting plate 65 in the adapter mechanism 6 performs a pressing operation toward the packaging bag 9 and the other fitting plate 65, and cooperates with the heat sealing plate 33 to heat seal the paper-plastic packaging bag 9, and the heat sealing effect is good.

[0052] In the sixth embodiment, a top plate is provided between the four stabilizing mechanisms 2, and the size of the first fixing groove 22 is larger than that of the second fixing groove 23;

[0053] Specifically, by arranging a top plate between the four stabilizing mechanisms 2, when the heat sealing mold body 1 is transported and encountering bad weather, the heat sealing mold body 1 can be fully protected from rain erosion, avoiding problems such as rust and short circuit of components caused by moisture, thereby ensuring the performance and reliability of the heat sealing mold in subsequent use, further extending the service life of the heat sealing mold body 1, and improving the practicality and reliability of the entire heat sealing mold body 1.

[0054] Working principle:

[0055] First, when the medical device packaging bag 9 needs to be heat-sealed, the heat-sealing mold body 1 is first moved to the position where heat sealing is required, and the receiving block and the anti-skid pad at the bottom of the base 4 are used to firmly support the ground. The receiving block and the anti-skid pad can effectively share the downward pressure generated by the heat-sealing mold body 1 during operation, and prevent the base 4 from being deformed or damaged due to pressure concentration. The anti-skid pad increases the friction between the heat-sealing mold body 1 and the ground on which it is placed;

[0056] Before starting heat sealing, it is necessary to input the heat sealing temperature required for the packaging bag 9 on the temperature controller, and then press the button on the processor. When starting heat sealing, the processor drives the four motors 24 to simultaneously drive the four sliders 26 on the screw 25 and the upper mold 32 to move downward to the lower mold 8. At the same time, the packaging bag 9 to be heat sealed is placed on the adapter plate 61, and the processor is turned on. At this time, the infrared sensor 66 senses the position of the packaging bag 9, drives the telescopic rod 62 to drive the sliding plate 63, the vertical block 64 and the fitting plate 65, and the infrared sensor 66 transmits the position information of the packaging bag 9 to the processor connected thereto. The processor analyzes and determines the received position signal according to the preset program logic, and after confirming that it is a valid signal that needs to be pressed, it will send a corresponding instruction to the motor 24. The motor 24 simultaneously drives the four sliders 26 on the screw 25 and the upper mold 32 to move downward to the lower mold 8, and the fitting plate 65 in the adapter mechanism 6 performs a pressing operation toward the packaging bag 9 and another fitting plate 65.

[0057] During the heat sealing process, the upper mold 32 is slowly pressed down under the drive of the stabilizing mechanism 2. During the movement of the sliding plate 63 with the vertical block 64 and the fitting abutment plate 65, the connecting side plate 71 and the metal abutment plate 72 in the second mold structure 7 are driven to move on the lower mold 8, and the fitting abutment plate 65 is cooperated to perform a pressing operation on the packaging bag 9. At this time, the upper mold 32 is precisely fitted with the lower mold 8, and the hydraulic cylinder 27 drives the lifting block 28 and the sealing cover plate 29 at the bottom to cover the upper mold 32 and the lower mold 8, and stay on the receiving bottom plate 5 until the heat sealing is completed, so as to maintain a stable temperature during the heat sealing process of the packaging bag 9.

[0058] The heat sealing plate 33 is in close contact with the part to be heat-sealed of the paper-plastic packaging bag 9. The high temperature causes the plastic layer of the packaging bag 9 to soften rapidly and fuse with each other. Under the pressure of the heat sealing plate 33, a firm sealing connection is formed between the two layers of plastic film of the packaging bag 9. After the heat sealing is completed, as the hydraulic cylinder 27 drives the lifting block 28 and the sealing cover plate 29 at the bottom to rise, the upper mold 32 moves upward, and the heat sealing plate 33 quickly dissipates heat, leaving a smooth and well-sealed heat sealing mark on the paper-plastic packaging bag 9, which effectively ensures the sealing of the medical device items in the packaging bag 9. During the entire heat sealing process, the sealing cover plate 29 covers the upper mold 32 and the lower mold 8 throughout the process, ensuring the uniformity of the heating temperature during heat sealing, and the heat sealing effect is good and the heat sealing quality is high.

[0059] At this point, the entire workflow ends.

[0060] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0063] It is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the changes still fall within the protection scope of the invention.

Claims

1. A heat-sealing mold for a paper-plastic packaging bag for medical devices, comprising a heat-sealing mold body (1), characterized in that: The heat sealing mold body (1) comprises a stabilizing mechanism (2), a first mold structure (3) connected to the stabilizing mechanism (2), an adapting mechanism (6) connected to the heat sealing mold body (1), and a second mold structure (7) connected to the adapting mechanism (6); The stabilizing mechanism (2) comprises a connecting vertical plate (21), a first fixing groove (22), a second fixing groove (23) and a motor (24); the first fixing groove (22) and the second fixing groove (23) are both arranged on opposite sides of the four connecting vertical plates (21); the motor (24) is fixed inside the second fixing groove (23); a screw rod (25) is fixed at the bottom of the motor (24); and a slider (26) is threadedly connected to the screw rod (25); The adapting mechanism (6) comprises an adapting plate (61), a telescopic rod (62), a sliding plate (63), a vertical block (64), a fitting plate (65) and an infrared sensor (66); a central groove is provided in the middle of the adapting plate (61); the two telescopic rods (62) are arranged inside the adapting plate (61) and fixed; the right end of the sliding plate (63) is fixed to the left end of the telescopic rod (62); the lower end of the vertical block (64) is fixed to the sliding plate (63); the lower end of the fitting plate (65) is fixed to the upper end of the vertical block (64); the infrared sensor (66) is fixed to the fitting plate (65); and the vertical block (64) and the sliding plate (63) slide inside the central groove.

2. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 1, characterized in that: A hydraulic cylinder (27) is fixed inside each of the four first fixing grooves (22), a lifting block (28) is fixed at the bottom of the hydraulic cylinder (27), and a sealing cover plate (29) is fixed between the four lifting blocks (28).

3. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 1, characterized in that: A base (4) is provided in the middle of the heat-sealing mold body (1), receiving blocks are provided at the four corners of the lower end of the base (4), an anti-slip pad is fixed to the lower end of the receiving block, and a receiving bottom plate (5) is fixed to the upper end of the base (4).

4. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 1, characterized in that: The second mold structure (7) comprises a connecting side plate (71) and a metal abutment plate (72), the four connecting side plates (71) are fixedly connected to both sides of the sliding plate (63), and the four metal abutment plates (72) are arranged on the connecting side plates (71).

5. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 3, characterized in that: A processor and a temperature controller are fixed to the left end of the heat sealing mold body (1), and the infrared sensor (66) is electrically connected to the processor. The motor (24), the hydraulic cylinder (27) and the telescopic rod (62) are all electrically connected to the processor.

6. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 4, characterized in that: A packaging bag (9) is pressed tightly between the two fitting abutment plates (65), and a lower mold (8) is arranged between the connecting side plate (71) and the fitting abutment plates (65).

7. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 1, characterized in that: The first mold structure (3) comprises a fixed block (31), an upper mold (32) and a heat sealing plate (33); the four sliders (26) are fixedly connected to the fixed blocks (31); the upper mold (32) is arranged between the four fixed blocks (31); and the interior of the upper mold (32) is fixedly connected to the heat sealing plate (33).

8. A heat-sealing mold for a paper-plastic packaging bag for medical devices according to claim 1, characterized in that: A top plate is provided between the four stabilizing mechanisms (2), and the size of the first fixing groove (22) is larger than that of the second fixing groove (23).

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