Safe disassembly and assembly structure of precision die head

Abstract

The invention provides a safe dismounting and mounting structure of a precision die head, which relates to the technical field of coating machine die head dismounting and mounting, and comprises a moving trolley, a dismounting and mounting track, a lifting moving part and a bearing assembly. The top of the moving trolley is provided with a placing plate for bearing a die head assembly; one end of the dismounting track is detachably connected with the moving trolley, and the other end is connected with the lifting moving part; the lifting moving part can be inserted into a mounting groove in the die head mounting plate to realize accurate butt joint; the bearing assemblies are slidably arranged at the top of the lifting moving part and detachably installed on the two sides of the die head assembly. And a positioning groove is formed in the bottom of the die head assembly and is matched with the positioning boss of the die head mounting plate to realize automatic centering and positioning. According to the scheme, the sliding of the track is matched with the lifting mechanism, so that the stable moving and accurate positioning of the die head are realized, the potential safety hazard of a traditional hoisting mode is avoided, the disassembly and assembly precision and the operation safety are effectively improved, and the production efficiency and the product consistency are obviously improved.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of coating machine die head disassembly and assembly, and particularly relates to a safe disassembly and assembly structure of a precision die head. BACKGROUND

[0002] With the rapid development of high-end materials such as lithium batteries, optics, photovoltaics, shielding and flexible circuit board substrates, continuous and efficient production and improvement of product batch stability have become the focus of the thin film material industry. Extrusion coating is widely concerned and selected by the industry because it can realize the closed conveying of coating slurry and maximize the stability of the glue.

[0003] At the same time, how to stabilize the coating thickness and make the thickness have stable reproducibility between batches has become a problem that the thin film industry has been thinking about. Therefore, the machining precision, installation precision and repeated precision during installation of the extrusion die are particularly important. Under the premise of ensuring the design and machining precision of the die, the installation precision in use and the repeated precision in production become the most important factors affecting the thickness consistency and uniformity.

[0004] In the current coating production process, the assembly and installation of the extrusion die is roughly divided into two ways: hoisting assembly and online disassembly and assembly. 1. Hoisting assembly: that is, the die is hoisted to the disassembly and assembly platform through the hoisting of the stacker crane after the die is hoisted through the hoisting ring of the upper die plate, and then hoisted and assembled. The advantage of this method is relatively simple, does not require special tooling, and the coating head is assembled on the disassembly and assembly platform, which is beneficial to ensuring the assembly precision of the die, and is the current assembly method of the extrusion die. However, the die is suspended during hoisting, which is prone to shaking and has a high safety risk, and accidents such as die falling occur from time to time; at the same time, the die needs to be hoisted and reset after being cleaned and assembled, and it is difficult to maintain the flatness and straightness of the upper and lower die plates during hoisting, which is difficult to meet the micron demand of high-precision coating. Therefore, the die may be abnormal after disassembly and assembly, which ultimately leads to the instability of the product batch.

[0005] 2. Online disassembly: that is, the die head is no longer moved to the ground after use for cleaning and assembly, and the upper die plate is directly opened for cleaning at the installation position, and then the die head is assembled and used. This method saves the risk of lifting and makes the cleaning and assembly relatively simple. However, the die head and the installation base plate are not fully cleaned, and it is difficult to ensure the hygiene of the die head for a long time, and the precision gradually decreases. At the same time, because the die head is assembled at the installation position, the operation space is small, and it is difficult to ensure that the upper and lower die lips are in the same vertical plane. In daily use, the left and right gaps of the die head are often quite different, but the coating thickness is quite different. The reason is that the upper and lower die lips are in the same vertical plane, and the actual control thickness uniformity of the die lip gap is not the same, which ultimately leads to abnormal thickness and cannot guarantee the repeatability of the product.

[0006] Therefore, how to avoid the defects of the above two installation methods and improve the safety of operation and the consistency of the product has become a problem urgently needed to be solved in the film industry. SUMMARY

[0007] 1. Technical problems to be solved by the application: The present application provides a safe disassembly structure of a precision die head to solve the technical problems existing in the background art.

[0008] 2. Technical scheme: To achieve the above-mentioned purpose, the technical scheme provided by the present application is as follows: a safe disassembly structure of a precision die head, comprising a moving trolley, the top of which is provided with a placing plate for carrying a die head assembly; A disassembly track is arranged on one side of the moving trolley by a detachable manner; A lifting and moving part is connected to the other end of the disassembly track by a detachable manner, and the lifting and moving part is configured to be inserted into a preset installation slot of the die head installation plate to realize precise butt joint with the die head installation plate; A bearing assembly is slidably arranged on the top of the lifting and moving part and detachably mounted on both sides of the die head assembly to be moved; Wherein, the bottom of the die head assembly is symmetrically provided with a positioning groove matched with a positioning boss in the die head installation plate to realize automatic centering and positioning of the die head assembly.

[0009] When the die head assembly needs to be cleaned or maintained, first connect one end of the disassembly track with the moving trolley and the other end with the lifting and moving part. Push the moving trolley to make the lifting and moving part accurately inserted into the installation slot, and ensure the initial alignment accuracy of the whole disassembly system and the coating machine body. The coating machine is a prior art and is not described here.

[0010] Subsequently, the bearing assembly is installed on both sides of the mold assembly to be disassembled. Loosen the connecting bolts between the mold assembly and the mold mounting plate, operate the lifting moving part to lift upward, so that the positioning groove at the bottom of the mold assembly is separated from the positioning boss on the mold mounting plate. At this time, the rollers of the bearing assembly are flush with the upper surface of the disassembly track, and the operator can smoothly push the mold assembly along the track to the placement plate of the moving trolley.

[0011] After the mold assembly is moved out, the disassembly track and the lifting moving part are disassembled, and the moving trolley is used to transfer the mold assembly to the cleaning station for subsequent operation.

[0012] After cleaning and assembly are completed, the disassembly track and the lifting moving part are reconnected, the lifting moving part is inserted into the mounting slot on the mold mounting plate for accurate positioning. The assembled mold assembly is pushed back to the installation station along the track through the bearing assembly, the lifting moving part is operated to descend, and the groove at the bottom of the mold assembly is precisely fitted with the boss on the mold mounting plate. Finally, the mold assembly and the mold mounting plate are fixed, and the track and the auxiliary parts are disassembled, completing the installation process.

[0013] Further, the edge of the placement plate is provided with a three-sided fence, and the side of the moving trolley is provided with a push-pull handle.

[0014] Further, the disassembly track is in L-shaped structure, and both ends are provided with plug-in protrusions; the corresponding positions of the moving trolley and the lifting moving part are provided with mounting protrusions matched with the plug-in protrusions; the plug-in protrusions and the mounting protrusions are detachably connected through positioning pins.

[0015] Further, the lifting moving part comprises a plug-in box body, the end of the plug-in box body is provided with the mounting protrusion; the top of the plug-in box body is provided with an opening and is slidably connected with a lifting block, the bottom of the lifting block is fixedly connected with an inclined plate; a rotating lead screw is penetratingly arranged in the plug-in box body, both ends of the rotating lead screw are rotatably connected to the side walls of the plug-in box body through bearings; a trapezoidal block is matched and connected on the rotating lead screw, the upper surface of the trapezoidal block is matched with the inclined surface of the inclined plate; when the rotating lead screw rotates and drives the trapezoidal block to move horizontally, the inclined plate drives the lifting block to move vertically.

[0016] Further, the outer side of the lifting block is detachably provided with a limiting block, which is used to limit the movement range of the bearing assembly.

[0017] Further, the end of the rotating lead screw is connected with a driving part, which is a ring-shaped rotating handle or a servo motor.

[0018] Further, the bearing assembly comprises a combination block, which is provided with symmetrically distributed mounting holes on the side surface, and is detachably connected with the side surface of the die head assembly through bolts; the bottom of the combination block is provided with a concave groove, and at least one pair of rollers with bearings are installed in the concave groove, and the outer circumferential surface of the roller forms rolling contact with the upper surface of the dismounting track.

[0019] Further, one end of the positioning pin is provided with an anti-falling handle, and the other end is provided with a limiting hole, and an open pin can be inserted into the limiting hole to prevent the positioning pin from falling off accidentally.

[0020] Further, a limiting plug-in hole is symmetrically arranged on the placement plate, the limiting plug-in hole is located on the movement path of the bearing assembly, and a blocking block is matched and installed on the top of the limiting plug-in hole.

[0021] 3. Beneficial effects: Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects: The present application has reasonable design, and through the combination of track sliding and lifting mechanism, stable transfer and accurate positioning of the die head assembly are realized, and the safety hazards and precision deviation of the traditional lifting method are effectively avoided.

[0022] The plug-in type track connection structure and automatic centering positioning design significantly improve the repeated positioning accuracy of die head dismounting, ensure the consistency between product batches, and reduce the labor intensity of the operator.

[0023] The whole device has reasonable structure and simple operation, which not only ensures the safety of operation, but also improves the production efficiency, and is especially suitable for high-precision die head dismounting operation with high requirements for uniformity and thickness consistency of coating.

[0024] It should be noted that the structures not introduced in the present application do not involve the design points and improvement direction of the present application, and are the same as or can be realized by the prior art, and will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the present application; Figure 2 is another angle structural schematic diagram of the present application; Figure 3 is a structural schematic diagram of the lifting and moving part of the present application; Figure 4 is a structural schematic diagram of the dismounting track of the present application; Figure 5 is a structural schematic diagram of the bearing assembly of the present application after installation.

[0026] Reference signs: 1, mobile trolley; 2, placement plate; 21, fence; 22, push-pull handle; 23, limiting plug-in hole; 24, blocking block; 3, disassembly rail; 31, plug-in protrusion; 32, installation protrusion; 33, positioning pin; 4, lifting moving part; 41, plug-in box body; 42, lifting block; 43, inclined plate; 44, rotating screw; 45, trapezoidal block; 46, limiting block; 5, bearing assembly; 51, combination block; 52, mounting hole; 53, roller; 6, die mounting plate; 7, die assembly. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the relevant drawings, which show several embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] It should be noted that the structures not introduced in the present application can adopt the existing technologies known by those skilled in the art since they do not involve the design points and improvement direction of the present application.

[0032] The specific implementation of the present application is described in detail below in combination with specific embodiments.

[0033] Referring to the drawings Figures 1-5 A safe dismounting structure of a precision die head, comprising a moving trolley 1, a placing plate 2 for carrying a die head assembly 7 is arranged on the top of the moving trolley 1; A dismounting rail 3 is arranged on one side of the moving trolley 1 in a detachable manner; A lifting and moving part 4 is connected to the other end of the dismounting rail 3 in a detachable manner, and the lifting and moving part 4 is configured to be inserted into a preset mounting groove on the die head mounting plate 6 to realize accurate butt joint with the die head mounting plate 6; A bearing assembly 5 is arranged on the top of the lifting and moving part 4 in a sliding manner and is detachably mounted on both sides of the die head assembly 7 to be moved; The bottom of the die head assembly 7 is symmetrically provided with a positioning groove which cooperates with a positioning boss in the die head mounting plate 6 to realize automatic centering and positioning of the die head assembly 7.

[0034] In the present embodiment, when the die head assembly 7 needs to be cleaned or maintained, first, one end of the dismounting rail 3 is connected with the moving trolley 1 and the other end is connected with the lifting and moving part 4. The moving trolley 1 is pushed to accurately insert the lifting and moving part 4 into the mounting groove, ensuring the initial positioning accuracy of the entire dismounting system and the main body of the coating machine. In the present embodiment, the die head mounting plate 6 is a partial structure of the coating machine, and the coating machine is a prior art which is not described here.

[0035] Subsequently, the bearing assembly 5 is mounted on both sides of the die head assembly 7 to be dismounted. The connecting bolts between the die head assembly 7 and the die head mounting plate 6 are loosened, the lifting and moving part 4 is operated to be lifted upward, and the positioning groove at the bottom of the die head assembly 7 is separated from the positioning boss on the die head mounting plate 6. At this time, the rollers of the bearing assembly 5 are flush with the upper surface of the dismounting rail 3, and the operator can smoothly push the die head assembly 7 along the rail to the placing plate 2 of the moving trolley 1.

[0036] After the die head assembly 7 is moved out, the dismounting rail 3 and the lifting and moving part 4 are dismounted, and the die head assembly 7 is transported to the cleaning station by the moving trolley 1 for subsequent operation.

[0037] After cleaning and assembling, reconnect the disassembly track 3 and the lifting moving part 4, insert the lifting moving part 4 into the mounting groove on the die mounting plate 6 to accurately position. The assembled die assembly 7 is pushed back to the mounting station along the track through the bearing assembly 5, the lifting moving part 4 is operated to descend, the groove at the bottom of the die assembly 7 is accurately embedded with the boss on the die mounting plate 6. Finally, the die assembly 7 and the die mounting plate 6 are fixed, and the track and auxiliary parts are disassembled, and the installation process is completed.

[0038] The present application sets up the mounting groove structure matched with the die mounting plate 6, which significantly improves the docking accuracy of the lifting moving part 4, thereby ensuring the repeated positioning accuracy and operation safety of the die assembly 7 in the disassembly process.

[0039] The edge of the placing plate 2 is provided with a three-sided fence 21, and the side of the moving trolley 1 is provided with a push-pull handle 22. In this embodiment, the edge of the placing plate 2 of the moving trolley 1 is provided with a three-sided fence 21 structure, which can effectively prevent the die assembly 7 from accidentally falling off the placing plate 2 during movement, thereby improving the safety of the carrying process. At the same time, the push-pull handle 22 is fixed on the side of the moving trolley 1, which facilitates the operator to push the moving trolley 1 to move flexibly between different stations, thereby greatly improving the convenience of disassembly operation.

[0040] The disassembly track 3 is in L-shaped structure, and the both ends are provided with plug-in protrusions 31; the corresponding positions of the moving trolley 1 and the lifting moving part 4 are provided with mounting protrusions 32 matched with the plug-in protrusions 31; the plug-in protrusions 31 and the mounting protrusions 32 are detachably connected through positioning pins 33. In this embodiment, the disassembly track 3 adopts L-shaped structure design, which is convenient for limiting the bearing assembly 5, and the both ends of the track are provided with plug-in protrusions 31. Correspondingly, the mounting protrusions 32 are arranged at the corresponding positions of the moving trolley 1 and the lifting moving part 4. When the track needs to be connected, the plug-in protrusions 31 at both ends of the track are respectively aligned and matched with the mounting protrusions 32 on the moving trolley 1 and the lifting moving part 4, and then the positioning pins 33 are inserted to achieve stable connection.

[0041] This connection structure has the following advantages: first, the cooperation of the plug-in protrusions 31 and the mounting protrusions 32 provides a preliminary positioning function, which facilitates the insertion operation of the positioning pins 33; second, the connection mode of the positioning pins 33 ensures the stability of the track during use, which can withstand the load generated when the die assembly 7 slides; finally, this connection structure realizes the quick disassembly of the track, simplifies the assembly and disassembly process of the track, and improves the operation efficiency. When the transfer operation of the die assembly 7 is completed, the positioning pins 33 are pulled out, and the track can be separated from the moving trolley 1 and the lifting moving part 4, which is convenient for storage and subsequent use of the equipment.

[0042] The lifting moving part 4 comprises a plug-in box body 41, which is provided with the mounting protrusion 32 at the end; the top of the plug-in box body 41 is provided with an opening and is slidingly connected with a lifting block 42, and the bottom of the lifting block 42 is fixedly connected with an inclined plate 43; a rotating lead screw 44 is penetratingly arranged in the plug-in box body 41, and the two ends of the rotating lead screw 44 are rotatably connected to the side walls of the plug-in box body 41 through bearings; a trapezoidal block 45 is matched and connected to the rotating lead screw 44, and the upper surface of the trapezoidal block 45 is matched with the inclined surface of the inclined plate 43; when the rotating lead screw 44 rotates and drives the trapezoidal block 45 to move horizontally, the inclined plate 43 drives the lifting block 42 to move vertically; in this embodiment, when the die head assembly 7 needs to be disassembled, the rotating lead screw 44 is rotated to drive the trapezoidal block 45 to move in the horizontal direction. Under the matching of the inclined surface, the inclined plate 43 drives the lifting block 42 to move upward, thereby lifting the bearing assembly 5 mounted on the two sides of the die head assembly 7, until the upper surface of the lifting block 42 is flush with the disassembly track 3, at this time, the die head assembly 7 can be smoothly slid out along the track.

[0043] When the die head assembly 7 is installed, the die head assembly 7 is pushed along the track to the lifting block 42 through the bearing assembly 5, the rotating lead screw 44 is reversely rotated to make the trapezoidal block 45 move back, the lifting block 42 is lowered, and the die head assembly 7 is driven to move downward, so that the positioning recess at the bottom of the die head assembly 7 is precisely embedded with the positioning boss on the die head mounting plate 6, and the positioning and installation are completed.

[0044] The outer side of the lifting block 42 is detachably mounted with a limiting block 46, which is used for limiting the movement range of the bearing assembly 5; in this embodiment, the outer side of the lifting block 42 is provided with the detachable limiting block 46, which is higher than the top surface of the lifting block 42; when the lifting block 42 is lifted to be flush with the disassembly track 3, the limiting block 46 can effectively block the bearing assembly 5 sliding to this position, so as to prevent the bearing assembly 5 from accidentally falling off the lifting block 42 during the operation process.

[0045] The end of the rotating lead screw 44 is connected with a driving part, which is an annular rotating handle or a servo motor; in this embodiment, the end of the rotating lead screw 44 is provided with the driving part, which can be an annular rotating handle or a servo motor in specific implementation.

[0046] When the annular rotating handle is adopted, the operator can accurately control the rotation of the lead screw by manually rotating, and then adjust the height of the lifting block 42. This driving mode has simple structure, intuitive operation, and is convenient for fine adjustment operation, which is beneficial to ensure the positioning accuracy of the die head assembly 7.

[0047] When a servo motor is used as the drive component, the servo motor is connected to the plug-in box 41 via a connecting plate, enabling automatic control of the lifting process. The servo motor provides stable output torque and precise speed control, making the lifting action smoother and more reliable, while reducing the labor intensity of operators and improving the efficiency of disassembly and assembly operations.

[0048] The bearing assembly 5 includes a connecting block 51 with symmetrically distributed mounting holes 52 on its side, which are detachably connected to the side of the die head assembly 7 by bolts. The bottom of the connecting block 51 is provided with a concave groove 53, in which at least one pair of rollers 53 with bearings are installed. The outer circumferential surface of the rollers 53 forms rolling contact with the upper surface of the disassembly track 3. In this embodiment, the bearing assembly 5 is connected to the die head assembly 7 by bolts, which facilitates quick assembly and disassembly, maintenance and replacement. The rolling contact between the bearing and the track significantly reduces sliding friction, making the movement of the die head assembly 7 on the track more effortless and stable. The symmetrically distributed bearing arrangement effectively improves the load-bearing stability and prevents the die head assembly 7 from deflecting or jamming during movement.

[0049] When the die head assembly 7 needs to move along the track, multiple bearings of the bearing assembly 5 simultaneously contact the track surface, forming a stable rolling support system to ensure that the heavy die head assembly 7 can easily and smoothly complete the transfer operation.

[0050] One end of the positioning pin 33 is provided with an anti-detachment handle, and the other end has a limiting hole. A cotter pin can be inserted into the limiting hole to prevent the positioning pin 33 from accidentally falling off. In this embodiment, the positioning pin 33 adopts an anti-detachment design. One end of the positioning pin 33 is provided with an anti-detachment ring formed by an annular flange. This structure can provide initial axial limitation after the positioning pin 33 is inserted. The other end of the positioning pin 33 is machined with a radially penetrating limiting hole. After the positioning pin 33 is fully inserted into the corresponding hole of the insertion protrusion 31 and the mounting protrusion 32, a cotter pin can be installed in the limiting hole to form a reliable anti-detachment safety device.

[0051] The placement plate 2 is symmetrically provided with limiting insertion holes 23, which are located on the moving path of the bearing assembly 5. A blocking block 24 is fitted onto the top of each limiting insertion hole 23. In this embodiment, two sets of limiting insertion holes 23 are symmetrically machined on the placement plate 2, and these holes are arranged along the moving trajectory of the bearing assembly 5. When the mold head assembly 7 moves to the predetermined position on the placement plate 2 via the bearing assembly 5, the limiting block 46 can be inserted into the corresponding limiting insertion hole 23.

[0052] The limiting mechanism has the following technical advantages: the blocking block 24 inserted into the limiting insertion hole 23 can form a reliable physical barrier on both sides of the mold head assembly 7, effectively preventing the mold head assembly 7 from slipping off the placement plate 2 due to inertia or accidental collision during transportation, thus significantly improving the safety of the mold head assembly 7 during handling. At the same time, the blocking block 24 is detachable, so it does not affect the normal placement and removal of the mold head assembly 7 on the placement plate 2, balancing safety and ease of operation.

[0053] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A safe assembly and disassembly structure for a precision die head, characterized in that: include The mobile trolley (1) has a placement plate (2) on its top for carrying the mold head assembly (7); The disassembly track (3) is detachably mounted on one side of the mobile trolley (1); The lifting and moving part (4) is detachably connected to the other end of the disassembly and assembly track (3). The lifting and moving part (4) is configured to be inserted into a preset mounting slot on the mold head mounting plate (6) to achieve precise docking with the mold head mounting plate (6). The bearing assembly (5) is slidably disposed on the top of the lifting and moving part (4) and detachably installed on both sides of the mold head assembly (7) to be moved; The bottom of the mold head assembly (7) is symmetrically provided with positioning grooves that cooperate with the positioning bosses in the mold head mounting plate (6) to achieve automatic centering and positioning of the mold head assembly (7).

2. The safety disassembly and assembly structure for a precision die head according to claim 1, characterized in that: The edge of the placement plate (2) is provided with a three-sided enclosure (21), and the side of the mobile trolley (1) is equipped with a push-pull handle (22).

3. The safety disassembly and assembly structure for a precision die head according to claim 1, characterized in that: The disassembly and assembly track (3) is an L-shaped structure with plug-in protrusions (31) at both ends; the corresponding positions of the mobile trolley (1) and the lifting moving part (4) are provided with mounting protrusions (32) that cooperate with the plug-in protrusions (31); the plug-in protrusions (31) and the mounting protrusions (32) are detachably connected by positioning pins (33).

4. The safety disassembly and assembly structure for a precision die head according to claim 3, characterized in that: The lifting and moving part (4) includes a plug-in box (41), the end of which is provided with the mounting protrusion (32); the top of the plug-in box (41) is provided with an opening and a lifting block (42) is slidably connected thereto, and the bottom of the lifting block (42) is fixedly connected to an inclined plate (43); a rotating screw (44) is provided through the plug-in box (41), and the two ends of the rotating screw (44) are rotatably connected to the side wall of the plug-in box (41) through bearings; a trapezoidal block (45) is connected to the rotating screw (44), and the upper surface of the trapezoidal block (45) cooperates with the inclined surface of the inclined plate (43); when the rotating screw (44) rotates and drives the trapezoidal block (45) to move horizontally, the inclined plate (43) drives the lifting block (42) to move vertically.

5. The safety disassembly and assembly structure for a precision die head according to claim 4, characterized in that: A limiting block (46) is detachably mounted on the outside of the lifting block (42), which is used to limit the range of movement of the bearing assembly (5).

6. The safety disassembly and assembly structure for a precision die head according to claim 4, characterized in that: The end of the rotating lead screw (44) is connected to a driving component, which is a ring-shaped rotating handle or a servo motor.

7. The safety disassembly and assembly structure for a precision die head according to claim 1, characterized in that: The bearing assembly (5) includes a connecting block (51), which has symmetrically distributed mounting holes (52) on its side and is detachably connected to the side of the mold assembly (7) by bolts; the bottom of the connecting block (51) is provided with a concave groove (53), which is equipped with at least one pair of rollers (53) with bearings, and the outer circumferential surface of the rollers (53) forms a rolling contact with the upper surface of the disassembly track (3).

8. The safety disassembly and assembly structure for a precision die head according to claim 3, characterized in that: One end of the positioning pin (33) is provided with an anti-detachment handle, and the other end is provided with a limiting hole. A cotter pin can be inserted into the limiting hole to prevent the positioning pin (33) from accidentally falling off.

9. The safety disassembly and assembly structure for a precision die head according to claim 1, characterized in that: The placement plate (2) is symmetrically provided with limit insertion holes (23), which are located on the moving path of the bearing assembly (5). A blocking block (24) is matched and installed on the top of the limit insertion hole (23).

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