Laminator

Abstract

The application relates to a laminating machine which comprises a press body, a sealing door, a lifting mechanism, a falling prevention mechanism and a controller; the sealing door is slidingly connected to the press body; the lifting mechanism is arranged on the press body; the lifting mechanism is connected to the sealing door to drive the sealing door to ascend or descend; the falling prevention mechanism is arranged on the press body; the falling prevention mechanism comprises a detection piece and a blocking unit; the detection piece is in communication connection with the lifting mechanism to detect a first parameter value of the lifting mechanism; the blocking unit is movably connected to the press body; the detection piece and the blocking unit are both in communication connection with the controller; when the falling amplitude of the first parameter value reaches a preset value, the controller controls the movement of the blocking unit so that the blocking unit supports the sealing door, thereby preventing the sealing door from falling and reducing the possibility of accidentally hurting the operator and damaging the sealing door when the sealing door falls, and reducing the safety hidden danger.

Description

Technical Field

[0001] This application relates to the field of hot pressing technology, and in particular to laminators. Background Technology

[0002] In the modern electronics industry, circuit boards, as key basic components that carry electronic devices, are subject to increasingly higher production scale and quality requirements. In the circuit board production process, laminators play a crucial role, achieving a tight bond between different layers of the circuit board through a lamination process, thereby forming multilayer circuit boards that meet usage requirements.

[0003] During the actual operation of the laminator, the front sealing door needs to be opened and closed frequently to meet the needs of placing or removing circuit boards and performing maintenance. The front sealing door is generally controlled by a lifting mechanism to achieve the opening and closing action.

[0004] In related technologies, lifting mechanisms are prone to malfunction and pose safety hazards. Utility Model Content

[0005] Therefore, it is necessary to provide a new type of laminator to address the safety hazards of existing laminators.

[0006] A laminator, comprising:

[0007] Press body;

[0008] The sealing door is slidably connected to the press body;

[0009] A lifting mechanism is provided on the press body; the lifting mechanism is connected to the sealing door to drive the sealing door to rise or fall;

[0010] A fall protection mechanism is provided on the press body; the fall protection mechanism includes a detection element and a blocking unit; the detection element is communicatively connected to the lifting mechanism to detect a first parameter value of the lifting mechanism; the blocking unit is movably connected to the press body.

[0011] The controller, the detection device and the blocking unit are both communicatively connected to the controller;

[0012] When the decrease in the first parameter value reaches a preset value, the controller controls the movement of the blocking unit so that the blocking unit is supported by the sealing door.

[0013] In one embodiment, the lifting mechanism includes a lifting drive member connected to the sealing door.

[0014] In one embodiment, the first parameter value includes a current value; the detection element includes a current detection element electrically connected to the lifting drive element, the current detection element being used to detect the current value of the lifting drive element.

[0015] In one embodiment, the lifting mechanism includes a lifting member connected to the lifting drive member, the lifting member being connected to the sealing door;

[0016] The first parameter value includes a tension value, and the detection element includes a tension detection element that is communicatively connected to the lifting element. The tension detection element is used to detect the tension value of the lifting element.

[0017] In one embodiment, the lifting mechanism further includes a rotating member connected to the lifting drive member; one end of the lifting member is connected to the rotating member, and the other end is connected to the sealing door.

[0018] In one embodiment, the blocking unit includes a blocking drive and a blocking member connected to the blocking drive; the blocking drive is communicatively connected to the controller, and the blocking drive is used to drive the blocking member into an extended state.

[0019] In one embodiment, the blocking actuator includes an electromagnetic actuator; the electromagnetic actuator, when energized, is capable of generating a magnetic force to drive the blocking actuator into the extended state.

[0020] In one embodiment, the blocking unit further includes an elastic element connected to the blocking member; when the electromagnetic drive is de-energized, the elastic element is used to drive the blocking member into a retracted state.

[0021] In one embodiment, the preset value ranges from 80% to 90%.

[0022] In one embodiment, the press body is provided with multiple sets of the blocking units, and the multiple sets of the blocking units are arranged at intervals along the direction of gravity;

[0023] And / or, the press body is provided with a guide portion, and the sealing door is slidably connected to the guide portion.

[0024] The aforementioned laminator includes a sealing door, a lifting mechanism, a fall arrest mechanism, and a controller. A detection device monitors the first parameter value of the lifting mechanism. When the drop in this first parameter value reaches a preset value, it indicates a malfunction in the lifting mechanism, suggesting a risk of disconnection between the sealing door and the lifting mechanism, meaning the sealing door is at risk of falling. The controller controls the movement of the blocking unit to support the sealing door, thereby preventing it from falling and reducing the possibility of accidental injury to operators or damage to the sealing door if it falls, thus mitigating safety hazards. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a laminator provided in one embodiment of this application.

[0027] Figure 2 for Figure 1 A schematic diagram of the blocking unit in the laminator is shown.

[0028] Figure 3 A control principle diagram of a laminator provided in an embodiment of this application.

[0029] Reference numerals: 110, Press body; 111, Reinforcing part; 120, Sealing door; 121, Guide roller; 130, Guide part; 131, Guide groove; 200, Lifting mechanism; 210, Lifting drive component; 220, Lifting component; 230, Rotating component; 240, Fixing component; 250, Connecting shaft; 300, Anti-fall mechanism; 310, Detection component; 311, Current detection component; 320, Blocking unit; 321, Blocking component; 322, Elastic component; 323, Locking seat; 400, Controller. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] Under the combined effects of prolonged use and harsh working environments, the lifting mechanism used to raise and lower the sealing door is prone to numerous problems. Taking the lifting mechanism, including the belt, as an example, the belt may tear or even break under long-term stress and environmental factors. Once the belt breaks, the sealing door, due to its own weight, will suddenly fall under the force of gravity. This unexpected situation poses a significant safety threat to operators, potentially causing accidental injuries such as crushing blows or abrasions. Moreover, the sudden fall of the sealing door can also cause serious damage to the equipment itself, potentially leading to deformation of the sealing door's mechanical structure, collisions with other components, and other damage. This can disrupt the normal operation of the laminator, forcing the entire production process to stop, ultimately negatively impacting production efficiency and economic benefits.

[0037] Based on this, one embodiment of this application provides a laminator that can prevent the sealing door from falling when the lifting mechanism fails, thereby reducing the possibility of accidental injury to operators and damage to the sealing door when it falls, and reducing safety hazards.

[0038] The laminator provided in one embodiment of this application will now be described in detail with reference to the accompanying drawings.

[0039] See Figure 1 and Figure 3As shown, an embodiment of this application provides a laminator including a press body 110, a sealing door 120, a lifting mechanism 200, a fall prevention mechanism 300, and a controller 400. The sealing door 120 is slidably connected to the press body 110. The lifting mechanism 200 is disposed on the press body 110. The lifting mechanism 200 is connected to the sealing door 120 to drive the sealing door 120 to rise or fall. The fall prevention mechanism 300 is disposed on the press body 110. The fall prevention mechanism 300 includes a detection element 310 and a blocking unit 320. The detection element 310 is communicatively connected to the lifting mechanism 200 to detect a first parameter value of the lifting mechanism 200. The blocking unit 320 is movably connected to the press body 110. Both the detection element 310 and the blocking unit 320 are communicatively connected to the controller 400. When the decrease in the first parameter value reaches a preset value, the controller 400 controls the blocking unit 320 to move so that the blocking unit 320 supports the sealing door 120, thereby preventing the sealing door 120 from falling. Figure 1 Arrow Z indicates the direction of gravity, and arrow X indicates the horizontal direction.

[0040] The aforementioned laminator uses a detection component 310 to monitor the first parameter value of the lifting mechanism 200. When the drop in the first parameter value reaches a preset value, it indicates a malfunction in the lifting mechanism 200, suggesting a risk of disconnection between the sealing door 120 and the lifting mechanism 200, meaning the sealing door 120 is at risk of falling. The controller 400 controls the movement of the blocking unit 320 to support the sealing door 120, thereby preventing the sealing door 120 from falling and reducing the possibility of accidental injury to operators or damage to the sealing door 120 if it falls, thus mitigating safety hazards.

[0041] In some embodiments, the press body 110 is provided with a vacuum chamber (not shown), and a sealing door 120 is used to open or close the vacuum chamber. Multiple pressure plates (not shown) can be arranged inside the vacuum chamber, distributed along the direction of gravity, forming a pressing layer between adjacent pressure plates for pressing stacked materials. During the laminating operation, the lifting mechanism 200 drives the sealing door 120 to move, opening the vacuum chamber, and a transport vehicle, such as a transport car, transports each stacked material to its respective pressing layer. After being transported to its position, the lifting mechanism 200 drives the sealing door 120 to move, closing the vacuum chamber. Then, the vacuum chamber is evacuated to a vacuum state. The pressure plates are then driven to move, pressing each pressing layer's stacked material. After pressing is completed, the pressure plates are driven to move, and after each pressure plate falls back to its original position, gas is introduced into the vacuum chamber, making it non-vacuum. Then, the lifting mechanism 200 drives the sealing door 120 to move, opening the vacuum chamber, and a transport vehicle transports the pressed stacked materials to the next process. In some embodiments, the stacked material can be a circuit board, such as a printed circuit board. In some embodiments, the press body 110 can be welded from steel structural components. In some embodiments, the press body 110 is provided with a reinforcing part 111, which can be a stiffener, thereby increasing the structural strength of the laminator.

[0042] See Figure 1 As shown, in one embodiment, the lifting mechanism 200 includes a lifting drive 210 connected to the sealing door 120. The lifting drive 210 drives the sealing door 120 to rise or fall, reducing the need for manual intervention and improving work efficiency. In some embodiments, the lifting drive 210 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, a linear motor, or a lead screw drive module, etc.

[0043] See Figure 1 and Figure 3 As shown, in one embodiment, the first parameter value includes a current value; the detection element 310 includes a current detection element 311 electrically connected to the lifting drive element 210, which is used to detect the current value of the lifting drive element 210. For example, in the embodiment shown in the figure, the current detection element 311 is a smart ammeter. The smart ammeter accurately measures the current value of the lifting drive element 210, and works with the controller 400 to determine the operating status of the lifting mechanism 200 in a timely and accurate manner. When a fault is detected in the lifting mechanism 200, the controller 400 immediately sends a command to the blocking unit 320 to ensure that the blocking unit 320 starts to extend in time.

[0044] In one embodiment, the preset value ranges from 80% to 90%. Taking the current detection element 311 as an example, when the current value drops by 80% to 90%, it indicates that the load has disappeared, resulting in a precipitous drop, which means that the lifting mechanism 200 is at risk of breaking or has already broken.

[0045] In some embodiments, the controller 400 has a data analysis function. For example, the controller 400 integrates a comparator, and the current detection element 311 feeds back the detected current value to the controller 400. The comparator compares and analyzes the change in current, and when the current decrease reaches a preset value, it controls the blocking unit 320 to extend. In other embodiments, the current detection element 311 itself may have a data analysis function. When the current detection element 311 detects that the current decrease reaches a preset value, it feeds back a signal to the controller 400, causing the controller 400 to control the blocking unit 320 to operate. For example, the current detection element 311 may be a smart ammeter.

[0046] See Figure 1 As shown, in one embodiment, the lifting mechanism 200 includes a lifting member 220 connected to the lifting drive member 210, and the lifting member 220 is connected to the sealing door 120. The first parameter value includes a tension value, and the detection member 310 includes a tension detection member (not shown) communicatively connected to the lifting member 220. The tension detection member is used to detect the tension value of the lifting member 220. Understandably, when the lifting mechanism 200 is in normal working condition, the lifting member 220 is in a tensioned state. When the lifting member 220 breaks, it is in a relaxed state, and the tension of the lifting member 220 drops sharply. By detecting the tension value of the lifting member 220, the operating state of the lifting member 220 can also be determined. In some embodiments, the lifting drive member 210 can be a linear drive member, such as a cylinder or linear motor, which drives the lifting member 220 to move up and down, thereby raising and lowering the sealing door 120. In some embodiments, the lifting member 220 can be a belt, and the movement of the belt enables the raising and lowering of the sealing door 120. In other embodiments, the lifting member 220 may be a connecting rope.

[0047] In some embodiments, the tension sensing element can directly contact the lifting member 220. For example, the tension sensing element can be a strain gauge or a pressure sensor. The tension sensing element can be clamped onto the lifting member 220. When the lifting member 220 is in a tensioned state, a certain tension is applied to the contact point. This tension is converted into an electrical signal for measurement and output. In other embodiments, there is no direct physical contact between the tension sensing element and the lifting member 220. The tension of the lifting member 220 is measured indirectly by means of vibration, ultrasound, or laser ranging. For example, the tension sensing element is a vibration sensor, which calculates the tension by monitoring the vibration characteristics of the lifting member 220 at its natural frequency; or the sensing element 310 is an ultrasonic sensor, which measures the vibration frequency or displacement of the lifting member 220 to calculate the tension, etc.

[0048] See Figure 1 As shown, in one embodiment, the lifting mechanism 200 further includes a rotating member 230 connected to the lifting drive member 210; one end of the lifting member 220 is connected to the rotating member 230, and the other end is connected to the sealing door 120. In some embodiments, the lifting drive member 210 can be a drive motor, the rotating member 230 can be a rotating wheel, and the lifting member 220 can be driven by friction with the rotating wheel. The lifting drive member 210 drives the rotating member 230 to rotate, causing the lifting member 220 to rewind or unwind, thereby realizing the lifting and lowering operation of the sealing door 120. In some embodiments, the lifting member 220 and the sealing door 120 are fixedly connected by a fixing member 240. For example, the fixing member 240 can be a clamping plate, which clamps the lifting member 220, and the clamping plate is locked to the lifting member 220 and the sealing door 120 by fasteners such as bolts. Of course, in other embodiments, the lifting member 220 and the sealing door 120 can also be directly fixedly connected together using fasteners.

[0049] In the appendix Figure 1In the illustrated embodiment, two lifting members 220 and two rotating members 230 are provided. The two lifting members 220 are respectively located at both ends of the press body 110 along the horizontal direction, and the two rotating members 230 are respectively located at both ends of the press body 110 along the horizontal direction, improving the uniformity of force distribution and thus enhancing the stability of the sealing door 120 during the lifting process. In some embodiments, the lifting drive member 210 can be a drive motor, which is mounted on the top of the press body 110. In one embodiment, a connecting shaft 250 is provided between the lifting drive member 210 and the rotating member 230. The rotating member 230 is sleeved on the connecting shaft 250 and rotates synchronously with the connecting shaft 250. Thus, the lifting drive member 210 drives the connecting shaft 250 to rotate, thereby driving the rotating member 230 to rotate. In some embodiments, the lifting drive member 210 and the connecting shaft 250 can be arranged along the axial direction of the connecting shaft 250, with the lifting drive member 210 directly driving the connecting shaft 250 to rotate. In other embodiments, the lifting drive member 210 and the connecting shaft 250 can be arranged radially along the connecting shaft 250, thereby reducing the axial space occupied. Correspondingly, a transmission unit can be provided between the lifting drive member 210 and the connecting shaft 250 to realize power transmission. The rotational power of the lifting drive member 210 is transmitted to the connecting shaft 250 through the transmission unit. The transmission unit can be a belt drive unit, a chain drive unit, or a gear set, etc. The specific power transmission method can refer to the prior art, and will not be described in detail here. In other embodiments, the number of lifting members 220 and rotating members 230 can also be one, three, or more, depending on actual needs.

[0050] See Figure 1 and Figure 2 As shown, in one embodiment, the blocking unit 320 includes a blocking drive (not shown) and a blocking member 321 connected to the blocking drive. The blocking drive is communicatively connected to the controller 400. When the controller 400 or the detection unit 310 detects that the first parameter value of the lifting mechanism 200 has decreased and the decrease reaches a preset value, the controller 400 controls the blocking drive to move, causing the blocking member 321 to be in an extended state. The blocking member 321 in the extended state blocks and limits the lower end of the sealing door 120, forming a stable support and effectively preventing the sealing door 120 from falling, minimizing the risk of personnel injury and equipment damage. In some implementations, the blocking member 321 may be movably connected to the press body 110. By extending the blocking member 321 relative to the press body 110, the sealing door 120 is supported and blocked, preventing it from falling. By retracting the blocking member 321 relative to the press body 110, the sealing door 120 is no longer blocked, and the sealing door 120 can be raised and lowered normally. In some embodiments, the blocking unit 320 includes a locking seat 323, and the blocking member 321 passes through the locking seat 323. The locking seat 323 can be fixedly connected to the press body 110 by fasteners such as screws.

[0051] like Figure 2 As shown, in one embodiment, the blocking actuator includes an electromagnetic actuator. After the controller 400 issues an action command to the electromagnetic actuator, the electromagnetic actuator is energized. The energized electromagnetic actuator generates a magnetic force, which is used to drive the blocking member 321 to extend, thereby supporting the sealing door 120 and preventing the sealing door 120 from falling. Using magnetic actuation allows the blocking member 321 to extend in a very short time, providing a faster response speed; moreover, it has a compact structure, occupies little space, and is lightweight, making it easy to integrate into a compact space. In some embodiments, the electromagnetic actuator can be an electromagnet.

[0052] See Figure 1 and Figure 2 As shown, in one embodiment, the blocking unit 320 further includes an elastic element 322 connected to the blocking member 321. When the electromagnetic drive is energized, the elastic element 322 is in a deformed state. When the electromagnetic drive is de-energized, the magnetic force disappears, and the elastic force of the elastic element 322 drives the blocking member 321 to automatically reset, that is, the blocking member 321 is in a retracted state and no longer blocks the sealing door 120, thereby not affecting the normal lifting and lowering operation of the sealing door 120. In some embodiments, the elastic element 322 can be a spring, and the blocking member 321 can be a blocking rod.

[0053] In other embodiments, the elastic element 322 may be omitted, and the direction of the magnetic force of the electromagnetic drive element may be controlled by changing the direction of the current, thereby controlling the extension or retraction of the blocking element 321. For example, when a positive current is applied, the blocking element 321 extends, and when a reverse current is applied, the blocking element 321 retracts. Of course, in other embodiments, two independent electromagnetic drive elements may be provided, one of which is used to push the telescopic element to extend, and the other is used to drive the telescopic element to retract.

[0054] In some embodiments, the blocking drive can also be a cylinder. The blocking member 321 is connected to the piston rod of the cylinder, and the extension or retraction of the blocking member 321 is controlled by the extension or retraction of the cylinder. When the decrease in the value of the first parameter is detected to reach a preset value, the controller 400 sends a control signal to the cylinder to control the cylinder to extend, so that the blocking member 321 extends to support and block the sealing door 120; after the fault of the lifting mechanism 200 is cleared, the controller 400 controls the cylinder to retract, so that the blocking member 321 no longer blocks the falling of the sealing door 120.

[0055] See Figure 1As shown, in one embodiment, the press body 110 is provided with multiple sets of blocking units 320, which are arranged at intervals along the direction of gravity. By providing multiple sets of blocking units 320, it is possible to accommodate sealing doors 120 of different sizes, i.e., different heights. In addition, the arrangement of multiple sets of blocking units 320 can also improve the blocking reliability. When one set of blocking units 320 fails, the other blocking units 320 can still play a blocking role, improving the safety of the laminator. In some other embodiments, blocking units 320 can be provided at both ends of the press body 110 along the horizontal direction. This increases the contact area between the blocking units 320 and the sealing door 120, improving the blocking reliability of the sealing door 120.

[0056] See Figure 1 As shown, in one embodiment, the press body 110 is provided with a guide portion 130 extending along the direction of gravity, and the sealing door 120 is slidably connected to the guide portion 130. The guide portion 130 guides the raising and lowering of the sealing door 120. (See attached diagram.) Figure 1 In the illustrated embodiment, the guide portion 130 is a guide rail, and the aforementioned blocking unit 320 can be mounted on the guide rail. In some embodiments, the guide rail has a guide groove 131 along the direction of gravity, and the sealing door 120 slides in conjunction with the guide groove 131. Further, guide rollers 121 can be connected to both ends of the sealing door 120 in the horizontal direction, and the guide rollers 121 are tactilely connected to the guide groove 131. By providing guide rollers 121, the moving friction of the sealing door 120 can be reduced, making the lifting and lowering action of the sealing door 120 smoother. In other embodiments, the guide portion 130 can be a guide post extending along the direction of gravity, and the sealing door 120 is slidably connected to the guide post.

[0057] In the aforementioned laminator, taking the detection component 310 as a smart ammeter, the blocking drive component as an electromagnet, and the lifting mechanism 200 including a drive motor, rotating wheel, and belt as an example, the smart ammeter detects the current value of the drive motor and feeds the detected current value back to the controller 400. When the controller determines that the current value drops by 80% to 90%, it indicates that the load has disappeared, resulting in a precipitous drop, meaning the belt has broken, and the sealing door 120 is at risk of falling. The controller 400 energizes the electromagnet, which uses magnetic force to push the blocking component 321 out, thereby supporting the sealing door 120 to prevent it from falling. This reduces the possibility of accidental injury to operators and damage to the sealing door 120 if it falls, thus mitigating safety hazards.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A laminator, characterized in that, include: Press body (110); A sealing door (120) is slidably connected to the press body (110). A lifting mechanism (200) is provided on the press body (110); the lifting mechanism (200) is connected to the sealing door (120) to drive the sealing door (120) to rise or fall; A fall protection mechanism (300) is disposed on the press body (110); the fall protection mechanism (300) includes a detection element (310) and a blocking unit (320); the detection element (310) is communicatively connected to the lifting mechanism (200) to detect a first parameter value of the lifting mechanism (200); The blocking unit (320) is movably connected to the press body (110); The controller (400), the detection element (310) and the blocking unit (320) are all communicatively connected to the controller (400); When the decrease in the first parameter value reaches a preset value, the controller (400) controls the movement of the blocking unit (320) so that the blocking unit (320) is supported by the sealing door (120).

2. The laminator according to claim 1, characterized in that, The lifting mechanism (200) includes a lifting drive (210) connected to the sealing door (120).

3. The laminator according to claim 2, characterized in that, The first parameter value includes the current value; The detection element (310) includes a current detection element (311) electrically connected to the lifting drive element (210), the current detection element (311) being used to detect the current value of the lifting drive element (210).

4. The laminator according to claim 2, characterized in that, The lifting mechanism (200) includes a lifting member (220) connected to the lifting drive member (210), and the lifting member (220) is connected to the sealing door (120). The first parameter value includes a tension value, and the detection element (310) includes a tension detection element that is communicatively connected to the lifting element (220), the tension detection element being used to detect the tension value of the lifting element (220).

5. The laminator according to claim 4, characterized in that, The lifting mechanism (200) also includes a rotating member (230) connected to the lifting drive member (210). One end of the lifting member (220) is connected to the rotating member (230), and the other end is connected to the sealing door (120).

6. The laminator according to any one of claims 1 to 5, characterized in that, The blocking unit (320) includes a blocking drive and a blocking member (321) connected to the blocking drive. The blocking drive is communicatively connected to the controller (400), and the blocking drive is used to drive the blocking member (321) into an extended state.

7. The laminator according to claim 6, characterized in that, The blocking drive includes an electromagnetic drive; the electromagnetic drive, when energized, can generate magnetic force to drive the blocking member (321) into the extended state.

8. The laminator according to claim 7, characterized in that, The blocking unit (320) also includes an elastic member (322) connected to the blocking member (321). When the electromagnetic drive is in a de-energized state, the elastic member (322) is used to drive the blocking member (321) into a retracted state.

9. The laminator according to any one of claims 1 to 5, characterized in that, The preset value ranges from 80% to 90%.

10. The laminator according to any one of claims 1 to 5, characterized in that, The press body (110) is provided with multiple sets of the blocking units (320), and the multiple sets of the blocking units (320) are arranged at intervals along the direction of gravity; And / or, the press body (110) is provided with a guide portion (130), and the sealing door (120) is slidably connected to the guide portion (130).

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