Built-in anti-falling connecting rod mechanism for chemical fiber cake cannon

Abstract

The application adopts the following technical scheme: a built-in anti-falling connecting rod mechanism for a chemical fiber cake cannon barrel, comprising: a hollow cake cannon barrel, a sliding groove is formed in the inner wall of the cake cannon barrel in the axial direction; the connecting rod assembly comprises a connecting rod one, a connecting rod two and an anti-falling hook; the middle part of the connecting rod one is rotationally connected with the inner wall of the cake cannon barrel through a rotating shaft, the upper end of the connecting rod one is slidably penetrated through the sliding groove and extends to the outside of the cake cannon barrel, the bottom of the connecting rod one is hingedly connected with one end of the connecting rod two through a rotating pin; the other end of the connecting rod two is hingedly connected with the inner side end of the anti-falling hook through a rotating pin; the outer side end of the anti-falling hook can be extended to the outside of the cake cannon barrel after being driven; a cake pushing plate is slidably sleeved on the outside of the cake cannon barrel and is driven to move in the axial direction by an external power source, and the cake pushing plate contacts and pushes the upper end of the connecting rod one; a spring is connected to the connecting rod two at one end and to the inner wall of the cake cannon barrel at the other end, and is used for providing a restoring force. The application provides an anti-falling mechanism which can be built-in, automatically actuated and not hung with a fiber.

Description

Technical Field

[0001] This invention relates to the field of chemical fiber production feeding technology, and in particular to a built-in anti-drop linkage mechanism for chemical fiber cake tubes. Background Technology

[0002] In the production of synthetic fibers, especially in the processing of DTY (drawn textured yarn), the transfer of yarn cakes (raw yarn bobbins) is a crucial operation connecting various production stages. Currently, the transfer of yarn cakes within the workshop mostly utilizes transport trolleys or automated guided vehicles with barrel-type load-bearing structures. Because the synthetic fiber yarn cake itself has a cylindrical structure, it can only be fitted onto the outside of the barrel, lacking effective axial restraint. During actual transfer, the inertial forces generated by the movement, starting, stopping, turning, and acceleration / deceleration of the transport vehicle can easily cause the yarn cake to slip off the end of the barrel, resulting in yarn cake damage and raw material waste. This not only reduces product yield but also seriously affects the factory's production efficiency.

[0003] In existing technologies, some solutions to prevent wire cake from detaching involve adding external limiting devices such as elastic retaining rings or manual pins to the end of the barrel. However, these devices have significant drawbacks: firstly, they are cumbersome to operate, have low automation levels, and are difficult to coordinate efficiently with automatic wire cake pushing and receiving processes; secondly, the external structure is prone to snagging on waste wires on the wire cake during frequent loading and unloading processes, causing wire tangling, jamming, or even damage to the wire cake. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this invention designs an anti-detachment mechanism that can be built-in, automatically operated, and without wire snagging. It utilizes the power of the original push plate to realize the automatic opening and resetting of the anti-detachment hook. The entire mechanism is completely built into the barrel, and the operation logic is clear, thereby solving the problems mentioned in the background.

[0005] This invention is achieved using the following technical solution: a built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel, comprising: The hollow wire-shaped cannon barrel has a groove on its inner wall along the axial direction. A connecting rod assembly, disposed inside the wire cake barrel, includes connecting rod one, connecting rod two, and an anti-disengagement hook; the middle part of connecting rod one is rotatably connected to the inner wall of the wire cake barrel via a rotating shaft, the upper end of connecting rod one slides through the groove and extends to the outer side of the wire cake barrel, and the bottom of connecting rod one is hinged to one end of connecting rod two via a rotating pin; the other end of connecting rod two is hinged to the inner end of the anti-disengagement hook via a rotating pin; the outer end of the anti-disengagement hook can extend to the outside of the wire cake barrel after driving, thereby achieving axial positioning of the wire cake; The pusher plate is slidably sleeved on the outside of the wire cake cannon barrel and driven to move axially by an external power source. The inner side of the pusher plate has a driving part, which is used to contact and push the upper end of the connecting rod. A spring, one end of which is connected to the end of connecting rod two near connecting rod one, and the other end of which is connected to the inner wall of the screwdriver barrel, is used to provide a restoring force.

[0006] Preferably, a slot is provided through the outer side of the second connecting rod, and a fixing pin is fixedly provided on the inner wall of the wire cake barrel, and the fixing pin is slidably engaged in the slot.

[0007] Preferably, a second slot is provided through the outer side of the anti-disengagement hook, and a second fixing pin is fixedly provided on the inner wall of the wire cake barrel, the second fixing pin being slidably engaged in the second slot.

[0008] Preferably, the spring is a tension spring and is in a contracted state by default. Its preload keeps the connecting rod in its initial position when it is not subjected to external force, and keeps the anti-disengagement hook retracted into the cannon barrel.

[0009] Preferably, when the pusher plate moves toward the end of the wire cake cannon, the driving part of the pusher plate contacts and pushes the upper end of the first connecting rod, forcing the first connecting rod to rotate around the pivot, thereby driving the anti-disengagement hook to extend outward through the second connecting rod.

[0010] Preferably, when the pusher plate moves away from the end of the wire cake cannon barrel, the drive part of the pusher plate disengages from the first connecting rod, the restoring force of the spring drives the first connecting rod to rotate in the opposite direction, and the anti-disengagement hook is pulled back into the wire cake cannon barrel by the second connecting rod.

[0011] Preferably, it further includes an elastic compensation component, which includes a mounting base, an adjusting pin, a disc spring seat, a disc spring, and a spring connecting buckle; the mounting base is fixed to the outer wall of the wire-bearing barrel, and the mounting base has a insertion hole; the adjusting pin is movably inserted into the insertion hole, and its inner end is fixedly connected to the disc spring seat; the disc spring seat is elastically connected to the spring connecting buckle through the disc spring, and the spring connecting buckle is connected to the end of the spring; the adjusting pin can move axially to change the initial preload of the spring.

[0012] Preferably, the outer wall of the mounting base is rotatably connected to a rotating sleeve, which is threadedly engaged with an adjusting pin; the outer wall of the adjusting pin has a limiting groove, and the inner wall of the insertion hole is fixed with a limiting block that is slidably engaged in the limiting groove; when the rotating sleeve is rotated, the adjusting pin moves axially under the constraint of the limiting groove and the limiting block, thereby realizing stepless adjustment of the preload.

[0013] Preferably, a guide sleeve is fixedly sleeved on the outer side of the disc spring seat, and the inner diameter of the guide sleeve is clearance-fitted with the outer diameter of the disc spring to prevent the disc spring from buckling laterally.

[0014] Preferably, the outer side of the mounting base is also provided with a detachable protective cap, the inner side of which is fitted with a magnetic ring, and the outer side of the mounting base is provided with a magnetic groove at a corresponding position. The magnetic ring and the magnetic groove are magnetically attracted to each other, which facilitates the portable fixing of the protective cap and the mounting base.

[0015] The specific beneficial effects of this invention are as follows: (1) The present invention drives the built-in linkage assembly through the push plate, so that the anti-disengagement hook automatically opens after the silk cake is in place, forming a reliable axial mechanical block. This mechanism can effectively resist the inertial force generated when the transport trolley moves, starts, stops, turns and accelerates and decelerates, completely prevent the silk cake from slipping, significantly reduce the product damage rate, and improve production continuity and yield.

[0016] (2) This invention integrates the entire linkage mechanism entirely within the wire cake barrel, with no external protrusions, fundamentally avoiding the risk of entanglement or snagging with the wire cake or waste wire. Simultaneously, the mechanism cleverly utilizes the existing push plate's driving power, eliminating the need for an additional independent drive source, achieving "one drive for two uses," and automatically resetting via a reset spring. This design not only simplifies the operation process and enhances automated collaboration capabilities but also significantly reduces material costs and subsequent maintenance labor costs.

[0017] (3) Based on the original built-in anti-drop linkage mechanism, the present invention further adds an elastic compensation component. Through the nonlinear automatic compensation characteristics of the disc spring, when the tension spring undergoes permanent plastic elongation due to long-term reciprocating extension and contraction, the compression amount is automatically released to maintain the total preload basically constant, which significantly extends the service life of the spring and the entire linkage mechanism. At the same time, the operator only needs to rotate the rotating sleeve from the outside of the screw cannon barrel to achieve stepless fine adjustment without disassembly, which greatly reduces the maintenance difficulty and downtime. Moreover, the entire elastic compensation component is integrated into the outer wall of the barrel and does not occupy internal space. Attached Figure Description

[0018] Figure 1 This is a structural illustration of the present invention; Figure 2 This is a top view of the wire-bulb barrel and wire-bulb mounting structure of the present invention. Figure 3 This is a side view sectional view of the wire-tube barrel and wire-tube mounting structure of the present invention. Figure 4 This is an enlarged view of the structure at point A of the present invention; Figure 5 This is an enlarged view of the linkage assembly structure of the present invention; Figure 6 The diagram shows the structure of this invention after adding the elastic compensation component; Figure 7 This is a structural diagram illustrating the elasticity compensation component of the present invention; Figure 8This is a diagram showing the disassembled structure of the elastic compensation component of the present invention.

[0019] 1. Wire cake barrel; 11. Slide groove; 2. Connecting rod assembly; 21. Connecting rod one; 22. Connecting rod two; 23. Anti-disengagement hook; 24. Rotating pin; 25. Spring; 26. Rotating shaft; 27. Slot one; 28. Fixing pin one; 29. ​​Slot two; 210. Fixing pin two; 3. Push plate; 4. Elastic compensation assembly; 41. Mounting base; 42. Insertion hole; 43. Adjusting screw pin; 431. Rotating sleeve; 432. Limiting groove; 433. Limiting block; 44. Disc spring seat; 441. Guide sleeve; 45. Disc spring; 46. Spring connecting buckle; 47. Protective cap; 471. Magnetic ring; 472. Magnetic groove. Detailed Implementation

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Reference manual attached Figure 1-8 This invention provides a built-in anti-drop linkage mechanism for chemical fiber cake barrels, which is mainly used in automatic cake transfer systems in chemical fiber production workshops, such as on the cake gripping or carrying mechanism of AGV carts or composite robots.

[0025] The mechanism mainly includes a hollow wire cake barrel 1 for mounting and supporting the wire cake. A groove 11 is provided axially on the inner wall of the wire cake barrel 1. A connecting rod assembly 2 is hinged to the inside of the barrel near the end via a rotating shaft 26 and a rotating pin 24.

[0026] Linkage assembly 2 specifically includes link one 21, link two 22, and anti-disengagement hook 23, and their connection and limiting relationships are as follows: Link 1 21: Its middle part is rotatably connected to the inner wall of the wire cake cannon tube 1 through the rotating shaft 26, and can swing around the rotating shaft 26. The upper end of link 1 21 slides upward through the slide groove 11 and extends to the outside of the wire cake cannon tube 1 to receive external drive. The bottom of link 1 21 is hinged to one end of link 2 22 through the rotating pin 24.

[0027] Link 22: A slot 27 is provided through its outer side. A fixing pin 28 is fixedly provided on the inner wall of the wire cannon barrel 1. The fixing pin 28 is slidably engaged in the slot 27 to limit the movement trajectory and swing angle of the link 22.

[0028] Anti-disengagement hook 23: Its inner end is hinged to the other end of the connecting rod 22 via a rotating pin 24; the outer end of the anti-disengagement hook 23 can extend to the outside of the wire cake barrel 1 after driving, and axially limit the wire cake. A slot 29 is provided through the outer side of the anti-disengagement hook 23. A fixing pin 210 is fixedly provided on the inner wall of the wire cake barrel 1. The fixing pin 210 is slidably engaged in the slot 29 to guide the extension and retraction of the anti-disengagement hook 23.

[0029] It also includes drive and reset components, with the following specific components: Push plate 3: Slidably sleeved on the outside of the screw cannon barrel 1, and can reciprocate linearly along the barrel axis by an external power source such as an electric push rod, cylinder or screw module (not shown). When push plate 3 moves axially, its inner drive part can touch the upper end of connecting rod 21, pushing connecting rod 21 to rotate around shaft 26.

[0030] Spring 25: Located at one end of connecting rod 22 near connecting rod 1 21, and the other end of spring 25 is connected to the inner wall of the screwdriver barrel 1. Spring 25 is in the contracted state by default, and its preload causes connecting rod 1 21 to remain in the initial position when no external force is applied, thereby keeping the anti-disengagement hook 23 in the retracted state.

[0031] In its initial state, the anti-disengagement hook retracts, enabling pancake stacking operations.

[0032] Specifically, such as Figure 3As shown, in the initial state, the pusher plate 3 is located on the right side of the wire cake cannon barrel 1, away from the end of the barrel. At this time, the drive part of the pusher plate 3 does not contact the connecting rod 21. Under the contraction and tension of the spring 25, the connecting rod 21 maintains its initial clockwise deflection position, and the bottom of the connecting rod 21 pulls the connecting rod 22 inward. Under the sliding limit cooperation of the fixing pin 28 and the slot 27, the connecting rod 22 produces a corresponding angle change, which in turn pulls the anti-disengagement hook 23 to rotate around the fixing pin 210, and finally makes the outer end of the anti-disengagement hook 23 completely retract into the interior of the wire cake cannon barrel 1. In this state, the robot or the feeding device can smoothly put the wire cake into the end of the barrel.

[0033] In the anti-detachment state, the push plate moves to the left and the anti-detachment hook opens.

[0034] When the wire cake is assembled and needs to be transferred, the external power source drives the pusher plate 3 to move to the left towards the end of the barrel. During the movement, the drive part of the pusher plate 3 contacts and pushes the upper end of the connecting rod 21, forcing the connecting rod 21 to rotate counterclockwise around the pivot 26. The bottom of the connecting rod 21 then moves outward and upward, and pushes the connecting rod 22 outward through the rotating pin 24. Under the limiting action of the fixed pin 28 on the slot 27, the connecting rod 22 tilts at an angle. The movement and tilting of the connecting rod 22 further pushes the anti-disengagement hook 23. Under the insertion limiting guidance of the fixed pin 210 on the slot 29, the outer end of the anti-disengagement hook 23 extends outward from the opening on the side wall of the wire cake barrel 1, and finally blocks the outer side of the end face of the wire cake that has been assembled. At this time, the anti-disengagement hook 23 is in the open state, and the wire cake is reliably limited in the axial direction. Even if the transport trolley accelerates, decelerates or vibrates, the wire cake cannot fall off from the end of the barrel.

[0035] In the reset state, the push plate moves to the right and the anti-disengagement hook retracts.

[0036] When the transport trolley arrives at the target workstation and the wire cake needs to be pushed out, the pusher plate 3 moves to the right along the wire cake barrel 1 under the drive of the external power source, pushing out the outer wire cake. During the process of the pusher plate 3 moving to the right, the drive part of the pusher plate 3 disengages from the connecting rod 21. The restoring force of the spring 25 drives the connecting rod 21 to rotate clockwise to reset. The connecting rod 21 pulls the anti-disengagement hook 23 to rotate in the opposite direction through the connecting rod 22, so that the anti-disengagement hook 23 is retracted into the barrel again. This does not affect the pusher plate 3 from pushing the cake smoothly. After the cake is pushed out, the anti-disengagement hook 23 is still inside the wire cake barrel 1 under the elastic contraction of the spring 25, which does not affect the next wire cake splicing operation.

[0037] In summary, this invention utilizes a built-in linkage mechanism and the existing push plate power to achieve automatic opening and resetting of the anti-disengagement hook. The entire mechanism is completely built into the barrel, with clear action logic. It not only effectively solves the problem of wire cake transfer and detachment, but also fundamentally avoids the risk of wire getting caught on the external structure. It has high practical value and promising prospects for promotion.

[0038] In practical use, considering that the spring 25 will experience stress relaxation after long-term reciprocating extension and retraction, resulting in a decrease in preload, which may cause the anti-disengagement hook 23 to not retract properly, sluggish action, or the connecting rod 21 to not fully reset, affecting the next pancake operation, the present invention also provides a set of elasticity compensation components 4, which are installed on the pancake barrel 1 and connected to the end of the spring 25.

[0039] Please see Figures 6 to 8 The elastic compensation component 4 includes: a mounting base 41, an adjusting screw 43, a disc spring seat 44, multiple disc springs 45, and a spring connecting buckle 46. The mounting base 41 is threaded onto the outer wall of the wire-puff barrel 1. An axial insertion hole 42 is provided through the center of the mounting base 41. The adjusting screw 43 is movably inserted into the insertion hole 42 and can move axially. The inner end of the adjusting screw 43, facing the inside of the wire-puff barrel, is fixedly connected to the disc spring seat 44. The other side of the disc spring seat 44 is connected to the end of the spring 25 via the spring connecting buckle 46. Multiple sets of disc springs 45 are provided between the disc spring seat 44 and the spring connecting buckle 46. One end of each disc spring 45 abuts against the disc spring seat 44, and the other end abuts against the spring connecting buckle 46.

[0040] To achieve stepless adjustment of the spring preload, a rotating sleeve 431 is rotatably connected to the outer wall of the mounting base 41 via a bearing. This rotating sleeve 431 engages with the outer thread of the adjusting pin 43. Simultaneously, a limiting groove 432 is transversely formed on the outer wall of the adjusting pin 43, and a limiting block 433 is fixedly installed on the inner wall of the insertion hole 42, engaging within the limiting groove 432. When the operator rotates the rotating sleeve 431, under the constraint of the limiting groove 432 and the limiting block 433, the adjusting pin 43 cannot rotate but can only move axially, thereby causing the disc spring seat 44 and disc spring 45 to move together, lengthening or shortening the initial length of the spring 25, thus achieving fine adjustment of the spring preload.

[0041] In addition, to prevent lateral buckling of the disc spring 45 during compression, a guide sleeve 441 is fixedly fitted on the outer side of the disc spring seat 44. The inner diameter of the guide sleeve 441 is clearance-fitted with the outer diameter of the disc spring 45, and multiple vent holes are provided on the side wall of the guide sleeve 441 to ensure airflow during disc spring compression. The disc spring 45 has a non-linearly increasing elastic force-deformation characteristic. When the spring 25 undergoes permanent plastic elongation (i.e., relaxation) due to long-term cyclic use, the preload of the spring 25 will decrease. At this time, the originally compressed disc spring 45 will automatically release a small amount of compression, shortening the total distance between the disc spring seat 44 and the spring connecting buckle 46, thereby maintaining the actual tensile amount of the spring 25 basically constant and achieving automatic compensation.

[0042] As a further optimization, a protective cap 47 is provided on the outer side of the mounting base 41 to cover the exposed parts of the rotating sleeve 431 and the adjusting screw 43, preventing accidental contact or rotation by foreign objects. A magnetic ring 471 is embedded on the inner side of the protective cap 47, and a magnetic groove 472 is provided on the corresponding position on the outer side of the mounting base 41. The magnetic ring 471 and the magnetic groove 472 are magnetically attracted to each other, which facilitates quick and easy removal and placement, and provides stable fixation.

[0043] Finally, if the spring 25 is severely loose and the disc spring 45 is fully extended to its free state but still cannot compensate, it indicates that the spring 25 has reached the end of its life. At this time, you can continue to rotate the rotating sleeve 431 for manual compensation, or you can suggest replacing the spring 25.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0045] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

Claims

1. A built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel, characterized in that, include: The hollow wire-shaped cannon tube (1) has a groove (11) axially formed on its tube wall. The connecting rod assembly (2) is located inside the wire cake gun barrel (1) and includes a first connecting rod (21), a second connecting rod (22), and an anti-disengagement hook (23) connected in sequence; the upper end of the first connecting rod (21) slides through the groove (11) and extends to the outside of the wire cake gun barrel (1); The push plate (3) is movably set on the outside of the wire cake cannon tube (1) and driven by an external power source to move axially. It is used to contact and push the upper end of the connecting rod (21) so as to realize the extension of the anti-disengagement hook (23) and realize the axial limit of the wire cake. The elastic reset component (25) is connected to the connecting rod assembly (2) and the wire cake cannon tube (1) respectively, and is used to drive the anti-disengagement hook (23) to automatically retract when the push plate (3) is disengaged from the upper end of the connecting rod (21).

2. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 1, characterized in that, The middle part of the first connecting rod (21) is rotatably connected to the inner wall of the wire cake gun tube (1) through a rotating shaft (26), and the bottom of the first connecting rod (21) is hinged to one end of the second connecting rod (22) through a rotating pin (24); the other end of the second connecting rod (22) is hinged to the inner end of the anti-disengagement hook (23) through a rotating pin (24); a slot (27) is provided through the outer side of the second connecting rod (22), and a fixing pin (28) is fixedly provided on the inner wall of the wire cake gun tube (1), and the fixing pin (28) is slidably engaged in the slot (27).

3. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 2, characterized in that, The outer side of the anti-detachment hook (23) is provided with a slot two (29), and a fixing pin two (210) is fixedly provided on the inner wall of the wire cake cannon tube (1). The fixing pin two (210) is slidably engaged in the slot two (29).

4. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 1, characterized in that, The spring (25) is a tension spring and is in a contracted state by default. Its preload keeps the connecting rod (21) in its initial position when it is not subjected to external force, and keeps the anti-disengagement hook (23) retracted into the wire cake barrel (1).

5. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 1, characterized in that, When the pusher plate (3) moves toward the end of the wire cake cannon (1), the driving part of the pusher plate (3) contacts and pushes the upper end of the connecting rod (21), forcing the connecting rod (21) to rotate around the rotating shaft (26), thereby driving the anti-disengagement hook (23) to extend outward through the connecting rod (22).

6. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 1, characterized in that, When the pusher plate (3) moves away from the end of the wire cake cannon (1), the driving part of the pusher plate (3) disengages from the connecting rod (21), the restoring force of the spring (25) drives the connecting rod (21) to rotate in the opposite direction, and pulls the anti-disengagement hook (23) back into the wire cake cannon (1) through the connecting rod (22).

7. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 1, characterized in that, It also includes an elastic compensation component (4), which includes a mounting base (41), an adjusting pin (43), a disc spring seat (44), a disc spring (45), and a spring connecting buckle (46). The mounting base (41) is fixed to the outer wall of the wire-bearing gun barrel (1), and a plug hole (42) is provided on the mounting base (41). The adjusting pin (43) is movably inserted into the plug hole (42), and its inner end is fixedly connected to the disc spring seat (44). The disc spring seat (44) is elastically connected to the spring connecting buckle (46) through the disc spring (45), and the spring connecting buckle (46) is connected to the end of the spring (25). The adjusting pin (43) can move axially to change the initial preload of the spring (25).

8. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 7, characterized in that, The outer wall of the mounting base (41) is rotatably connected to a rotating sleeve (431), which is threadedly engaged with an adjusting pin (43). A limiting groove (432) is provided on the outer wall of the adjusting pin (43), and a limiting block (433) is fixed to the inner wall of the insertion hole (42) and slidably engaged in the limiting groove (432). When the rotating sleeve (431) is rotated, the adjusting pin (43) moves axially under the constraint of the limiting groove (432) and the limiting block (433), thereby realizing stepless adjustment of the preload.

9. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 8, characterized in that, The outer side of the disc spring seat (44) is fixedly fitted with a guide sleeve (441), the inner diameter of the guide sleeve (441) is clearance-fitted with the outer diameter of the disc spring (45) to prevent the disc spring (45) from buckling laterally.

10. The built-in anti-detachment linkage mechanism for a chemical fiber cake gun barrel according to claim 9, characterized in that, The mounting base (41) is also provided with a detachable protective cap (47) on the outside. A magnetic ring (471) is embedded on the inner side of the protective cap (47). A magnetic groove (472) is opened at the corresponding position on the outside of the mounting base (41). The magnetic ring (471) and the magnetic groove (472) are magnetically attracted to each other, which facilitates the portable fixing of the protective cap (47) and the mounting base (41).

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