Universal gun barrel anti-pulling structure

Abstract

The invention relates to the technical field of liquid filling on an automobile conveying plate chain, in particular to a universal gun barrel anti-pulling structure which comprises a lifting frame, a gun barrel mounting mechanism, a movable buffer assembly and a detection assembly, and the lifting frame can synchronously move along with the automobile conveying plate chain; the bottom of the lifting frame is slidably connected with a sliding base, the gun barrel mounting mechanism is fixed to the bottom of the sliding base and lifts a plurality of gun barrels, and the movable buffering assembly is arranged between the sliding base and the lifting frame and used for making the sliding base in a preset position in the normal state. The detection assembly is arranged on the lifting frame and used for detecting the position of the sliding base when deviation occurs between the filling machine and the conveying plate chain. The filling gun barrel connected with the filling gun drives the gun barrel installation mechanism connected with the filling gun to move, then the gun barrel installation mechanism drives the sliding base to make contact with the detection assembly, and the detection assembly controls and adjusts the relative position between the filling machine and the conveying plate chain or controls the filling machine and the conveying plate chain to directly stop running.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid filling on an automotive conveying plate chain, and more particularly to a universal barrel anti-pulling structure. Background Art

[0002] In the traditional liquid filling on an automotive conveying plate chain, it is usually carried out by the in-line accompanying filling machine and the automotive conveying plate chain moving synchronously. After the filling gun placed on the in-line accompanying filling machine is inserted into the vehicle filling port, the in-line accompanying filling machine will move along with the vehicle on the conveying plate chain. At this time, it is necessary to ensure that the filling gun on the in-line accompanying filling machine runs synchronously with the vehicle. If there is an offset between the in-line accompanying filling machine and the automotive conveying plate chain during movement, a deviation will occur synchronously between the filling gun and the vehicle filling port. When the deviation is large, it is easy to damage the vehicle filling port or cause damage to the filling gun and the filling barrel.

[0003] Regarding the above related technologies, there are still some deficiencies. When a deviation occurs between the filling gun and the vehicle filling port, when the deviation is large, it is easy to damage the vehicle filling port or cause damage to the filling gun and the filling barrel. Summary of the Invention

[0004] The purpose of the present application is to provide a universal barrel anti-pulling structure to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present application provides the following technical solution: A universal barrel anti-pulling structure includes a lifting frame, a barrel mounting mechanism, a moving buffer assembly, and a detection assembly. The lifting frame can move synchronously with the automotive conveying plate chain; a sliding seat is slidably connected to the bottom of the lifting frame, and the barrel mounting mechanism is fixed to the bottom of the sliding seat. The barrel mounting mechanism is used to lift a plurality of barrels, and the extending direction of the barrels is perpendicular to the sliding direction of the sliding seat; the moving buffer assembly is arranged between the sliding seat and the lifting frame, and the moving buffer assembly is used to limit the position of the sliding seat on the lifting frame so that the sliding seat is in a preset position under normal conditions; the detection assembly is arranged on the lifting frame, and the detection assembly is used to detect the position of the sliding seat. When the position of the sliding seat exceeds the first preset position, the displacement speed of the lifting frame is adjusted to adjust the relative position between the lifting frame and the automotive conveying plate chain. When the position of the sliding seat exceeds the second preset position, the lifting frame and the automotive conveying plate chain stop.

[0006] By adopting the above technical solution, one end of the lifting frame is installed on the on-line in-process filling machine, and the other end is slidably connected with a sliding seat. On the one hand, the setting of the sliding seat enables the barrel mounting mechanism, which is connected to multiple filling barrels and restricts the displacement of multiple filling barrels, to be slidably connected with the lifting frame, so as to realize in-process filling of the vehicle on the conveying plate chain by the on-line in-process filling machine through the filling barrels. On the other hand, the sliding seat can be in contact with the detection component. That is, when there is a movement deviation in the synchronous movement between the on-line in-process filling machine and the vehicle conveying plate chain, a deviation will be generated synchronously between the filling gun and the vehicle filling port. As a result, the filling gun abuts against the vehicle filling port, and the abutting force is further transmitted to the filling barrel connected to the filling gun. Then, the filling barrel drives the barrel mounting mechanism connected thereto to displace, and further the barrel mounting mechanism drives the sliding seat to displace transversely along the lifting frame until the sliding seat contacts the detection component. Then, the detection component controls the filling machine to adjust the speed accordingly according to the deviation direction of the sliding seat or feeds back to directly stop the operation of the filling machine and the conveying plate chain, and then manually controls the on-line in-process filling machine and the vehicle conveying plate chain to reset synchronously, effectively avoiding damage to the vehicle filling port or damage to the filling gun and the filling barrel caused by a large deviation.

[0007] Optionally, the universal barrel anti-pulling structure further includes a blowing mechanism and a blowing pipe. The blowing mechanism includes a sleeve and a piston. The piston is hermetically and slidably connected to the sleeve. The sleeve is fixed to the side surface of the lifting frame, and the piston is connected to the sliding seat. A plurality of groups of blowing pipes are provided, and one end of each blowing pipe is communicated with the air outlet end of the sleeve. The air outlet end of one group of blowing pipes faces the detection end of the detection component, the air outlet end of one group of blowing pipes faces the preset position, and the air outlet end of another group of blowing pipes faces the moving buffer component.

[0008] By adopting the above technical solution, the generation of the airflow of the blowing mechanism does not require an additional power source but directly uses the inherent reciprocating motion generated by the sliding seat each time it slides due to deviation to drive the blowing mechanism to blow air and clean synchronously, avoiding impurities from interfering with the functions of the sliding seat, the lifting frame and the moving buffer component, ensuring that the key components continuously maintain a clean state during the working process, realizing the functional integration of passive anti-pulling protection and active cleaning protection, and effectively improving the reliability and service life of the whole system.

[0009] Optionally, the air outlet ends of the blowing pipes are arranged staggeredly, and the blown airflows all flow along the length directions of the lifting frame and the moving buffer component.

[0010] By adopting the above technical solution, the air outlet ends of the air blowing pipes are arranged staggeredly, so that the purging areas of the air flows blown out by each air outlet end are staggeredly covered in the plane perpendicular to the length direction. The air flows work independently of each other without interference, effectively concentrating the energy of the air flows, ensuring that pollutants are completely blown out. The blown air flows are arranged to flow along the length direction, so that the flowing direction of the air flows is consistent with the stacking direction of the pollutants, and impurities such as dust and metal debris distributed along the length direction of the first sliding contact surface can be continuously pushed away, or impurities such as dust and metal debris distributed along the length direction of the second sliding contact surface when the elastic member is compressed can be continuously pushed away. At the same time, the air flows flowing along the length direction will completely blow away the impurities located on the first sliding contact surface or the second sliding surface along one side direction of the sliding contact surface, thereby ensuring smooth sliding of the sliding seat and free expansion and contraction of the spring, and effectively improving the response speed of the anti-pulling structure.

[0011] Optionally, the sliding seat includes a sliding plate and sliders. The barrel mounting mechanism is detachably connected to the bottom of the sliding plate; the sliders include a first slider and a second slider. One end of the first slider and the second slider is fixed to the sliding plate, and the other end of the first slider is slidably connected to the hoisting rack, and the other end of the second slider is slidably connected to the moving buffer assembly, so that the barrel mounting mechanism can be displaced along the length direction of the hoisting rack.

[0012] By adopting the above technical solution, the sliding seat is used as an intermediate connecting member to connect the barrel mounting mechanism, the hoisting rack and the moving buffer assembly. The first slider is connected to the hoisting rack so that the sliding plate can freely slide along the length direction of the hoisting rack, thereby adapting to the movement offset caused by the asynchronous movement between the on-line in-process filling machine and the vehicle conveyor chain. The second slider is linked with the buffer assembly to convert the abnormal pulling force generated by the movement offset caused by the asynchronous movement into a controllable slip of the sliding seat on the mounting rack and the moving buffer assembly, and transmit the pulling force to the buffer assembly. Then, the buffer assembly buffers when the pulling force arrives and drives the sliding seat to drive the barrel mounting mechanism to return to the preset position after the pulling force dissipates. The detachable setting of the sliding plate is convenient for replacement when parts are damaged, effectively improving the flexibility of the conveyor chain.

[0013] Optionally, the moving buffer assembly includes a connecting rod, an elastic member, a limiting sleeve, and a limiting member. The connecting rod is fixedly connected to the lifting frame and arranged along the length direction of the lifting frame. A plurality of elastic members are provided, and all are sleeved along the length direction of the connecting rod. The elastic members limit the position of the second slider on the connecting rod and provide a buffering and resetting force, so that the sliding seat is in a preset position under normal conditions. A plurality of limiting sleeves are provided, and all are installed on both sides of the second slider and slidably sleeved along the length direction of the connecting rod. The limiting sleeves are all in contact with the elastic members, and the limiting sleeves close to both sides of the second slider are embedded into both sides of the second slider and in contact with its inner wall, so that the sliding seat is slidably connected to the connecting rod through the second slider. A plurality of limiting members are provided, and all are installed at the limiting sleeves away from the second slider and located on the opposite side of the elastic member. The limiting members are in contact with the limiting sleeves.

[0014] By adopting the above technical solution, the connecting rod provides a rigid support and linear sliding guide for the elastic member and the limiting sleeve, ensuring that the elastic member and the limiting sleeve move along a preset direction. The elastic member is used as the core buffering element. Through the elastic deformation of the elastic member, the displacement impact generated by the sliding seat being pulled by the gun barrel is absorbed and buffered, and a reverse elastic force is generated for elastic reset to drive the sliding seat to reset. A plurality of limiting sleeves are provided as intermediaries for transmitting force, so as to transmit the displacement of the second slider to the elastic member, thereby compressing or stretching the elastic member. At the same time, the sliding of the elastic member along the radial position is restricted to avoid the deviation of the movement track of the elastic member. The setting of the limiting member limits the maximum deformation amount of the elastic member, that is, the maximum compression amount of the elastic member, avoiding the overload failure of the elastic member and defining the range of the preset position of the sliding seat at the same time. Through the hierarchical structure of the connecting rod guiding, the limiting sleeve transmitting force, the elastic member buffering and resetting, and the limiting member limiting, the mechanical buffering of the moving buffer assembly is combined with the active detection of the detection assembly, effectively improving the safety and stability of the on-line in-process filling machine.

[0015] Optionally, the detection assembly includes a detection switch. The detection switch is arranged on the lifting frame and is used to detect whether the sliding plate is at the first preset position of the detection switch. When the position of the sliding seat exceeds the first preset position, the displacement speed of the lifting frame is adjusted to adjust the relative position between the lifting frame and the vehicle conveying chain plate.

[0016] By adopting the above technical solution, the position of the sliding plate is monitored by the detection switch. When the synchronous error of the conveying plate chain is small, such as when the filling gun and the filling port are only slightly misaligned, the pulling force drives the sliding seat to slide along the lifting frame. The sliding plate slides to a position below the detection end of the detection switch, and the detection switch sends a signal to the filling machine control system. The control system slides the lifting frame left or right according to the offset direction, and correspondingly adjusts the displacement speed of the lifting frame, such as accelerating or decelerating, to match the relative speed between the lifting frame and the vehicle conveying plate chain, gradually reducing the relative position offset, and finally returning the sliding plate to the preset position, aligning the filling gun with the filling port again. By dynamically adjusting the speed to correct the synchronous error, it avoids production interruption caused by directly stopping the machine due to small offsets, and effectively improves production efficiency.

[0017] The detection assembly further includes a roller travel switch, which is arranged on the lifting frame and used to detect whether the sliding plate is located at a second preset position of the roller travel switch. When the position of the sliding seat exceeds the second preset position, the lifting frame and the vehicle conveying plate chain stop.

[0018] By adopting the above technical solution, the maximum offset between the on-line in-line filling machine and the vehicle conveying plate chain is limited by the roller travel switch. When the sliding plate slides along the lifting frame to touch the switch arm of the roller travel switch, a signal is sent to the control systems of the filling machine and the vehicle conveying plate chain, immediately stopping the operation of the on-line in-line filling machine and the vehicle conveying plate chain, avoiding deformation of the filling port or fracture of the filling gun barrel caused by continuous contact between the filling gun and the filling port. When an extreme offset occurs between the on-line in-line filling machine and the vehicle conveying plate chain triggered mechanically by the roller travel switch, forced shutdown is carried out to ensure production safety.

[0019] Optionally, the barrel mounting mechanism includes a lifting channel steel and a fixator. Hoisting chutes are symmetrically arranged on the four end faces of the lifting channel steel and are fixedly connected to the bottom of the sliding seat through the top hoisting chute to displace along the lifting frame with the sliding seat; the fixator is fixed in the hoisting chute at the bottom of the lifting channel steel and is arranged along the length direction of the lifting channel steel for fixing and hoisting a plurality of barrels so that the extending direction of the barrels is perpendicular to the sliding direction of the sliding seat.

[0020] By adopting the above technical solution, the hoisting channel steel is fixedly connected to the bottom of the sliding seat through the top hoisting chute, so that the hoisting channel steel can slide synchronously with the sliding seat along the hoisting frame. When the gun barrel is subjected to a lateral pulling force, the force is transmitted to the sliding seat through the hoisting channel steel, driving the sliding seat to displace left or right along the hoisting frame to trigger the mobile buffer assembly to buffer or trigger the detection assembly to detect the position of the sliding plate. Symmetric chutes are arranged on the four end faces, providing the possibility of installing the gun barrel installation mechanism in multiple directions and with multiple components, effectively improving the installation flexibility of the gun barrel installation mechanism. The setting of the fixator stably and effectively fixes multiple gun barrels, ensuring their alignment with the conveying plate chain. At the same time, the pulling force received by the gun barrel is transmitted to the hoisting channel steel and finally to the sliding seat by the hoisting channel steel to drive the sliding seat to slide along the hoisting frame to trigger the mobile buffer assembly to buffer and absorb energy or trigger the detection assembly to determine whether to stop the machine.

[0021] Optionally, the fixator includes fixing blocks and fixing parts. The fixing blocks are symmetrically arranged in two. One side of the two fixing blocks facing each other is recessed inward to form a groove for fixing and limiting the gun barrel. The fixing parts penetrate through the two symmetrically arranged fixing blocks and are connected to the hoisting chute to adjust the size of the groove so that the fixator can adapt to gun barrels of various sizes.

[0022] By adopting the above technical solution, the inwardly recessed grooves arranged on one side of the two fixing blocks facing each other are in contact with the outer surface of the gun barrel. The gun barrel is limited by the groove and the clamping force received by the gun barrel is dispersed, avoiding the deformation of the gun barrel caused by local stress concentration. At the same time, the limiting effect of the groove prevents the gun barrel from shaking laterally due to vibration during the filling process, resulting in the alignment error of the filling port. The fixing parts penetrate through the two fixing blocks and are connected to the hoisting chute of the hoisting channel steel. Then, by tightening or loosening the fixing parts, the distance between the two fixing blocks is adjusted, thereby changing the size of the groove and enabling the groove to limit and fix gun barrels of different diameters, so that there is no need to customize fixators for each type of gun barrel, effectively reducing the production and maintenance costs of the equipment.

[0023] Optionally, the universal gun barrel anti-pulling structure further includes a limiting block. The limiting block is detachably connected to the hoisting frame and is located between the hoisting frame and the mobile buffer assembly. When the gun barrel installation mechanism displaces along the length direction of the hoisting frame, the limiting block can contact the second slider to limit the displacement stroke of the sliding seat.

[0024] By adopting the above technical solution, the limiting block is installed on the hoisting rack, and a safety gap is reserved between the initial position of the limiting block and the second slider. The safety gap is greater than the maximum allowable compression of the elastic member of the moving buffer assembly, so that the second slider will not contact the limiting block when the displacement generated by the elastic member buffering and absorbing energy is within the normal offset range, avoiding interfering with the normal operation of the moving buffer assembly. When the synchronous offset of the conveying plate chain is too large, the pulling force exceeds the maximum buffering capacity of the elastic member, and the sliding seat drives the second slider to slide along the connecting rod of the moving buffer assembly, compressing the elastic member to the limit position. At this time, the elastic member is restricted by the limiting sleeve and the limiting member and cannot be further compressed. At this time, if the pulling force has not been eliminated, that is, if the detection component does not trigger a stop in time, the second slider will continue to move towards the limiting block until it abuts against the limiting block. Then, the rigid structure of the limiting block physically blocks the sliding of the second slider and terminates the displacement of the sliding seat, so as to avoid the barrel of the gun from being pulled off or the filling port from being deformed by impact.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When there is a moving offset in the synchronous travel between the on-line in-process filling machine and the automotive conveying plate chain, the detection component can control the filling machine to accelerate or decelerate to adjust the relative position between the filling machine and the automotive conveying plate chain, or the detection component can control the filling machine and the conveying plate chain to stop running directly, and manually control the on-line in-process filling machine and the automotive conveying plate chain to reset and synchronize, so as to avoid damage to the vehicle filling port or damage to the filling gun and the filling gun barrel caused by a large deviation.

[0026] 2. The generation of the air flow of the air blowing mechanism does not require an additional power source, but directly uses the inherent reciprocating motion generated by the sliding seat during each offset sliding to drive the air blowing mechanism to blow air and clean synchronously, avoiding impurities from interfering with the functions of the sliding seat, the hoisting rack and the moving buffer assembly, ensuring that the key components are continuously kept clean during the working process, realizing the functional integration of passive anti-pulling protection and active cleaning protection, and effectively improving the reliability and service life of the entire system.

[0027] 3. Through the hierarchical structure of guiding by the connecting rod of the moving buffer assembly, transmitting force by the limiting sleeve, buffering and resetting by the elastic member, and limiting by the limiting member, the mechanical buffering of the moving buffer assembly is combined with the active detection of the detection component, effectively improving the safety and stability of the on-line in-process filling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall front structure of the first embodiment of the present application; Figure 2 It is a schematic diagram of the overall bottom structure of the first embodiment of the present application; Figure 3 It is a schematic diagram of the overall rear structure of the first embodiment of the present application; Figure 4It is a schematic diagram of the overall front view structure of the second embodiment of the present application; Figure 5 It is a schematic diagram of the overall right-side structure of the second embodiment of the present application.

[0029] Explanation of reference numerals: 1, lifting frame; 2, barrel mounting mechanism; 21, lifting channel steel; 211, lifting chute; 22, fixator; 221, fixing block; 222, fixing member; 223, groove; 3, moving buffer assembly; 31, connecting rod; 32, elastic member; 33, limiting sleeve; 34, limiting member; 4, detection assembly; 41, detection switch; 42, roller travel switch; 43, switch arm; 5, sliding seat; 51, sliding plate; 52, slider; 521, first slider; 522, second slider; 6, limiting block; 7, blowing mechanism; 71, sleeve; 72, piston; 8, blowing pipe. Detailed implementation manners

[0030] The following further Figures 1-5 describes the present application in detail.

[0031] As Figures 1-3 shown, the present application discloses a universal barrel anti-pulling structure in an embodiment, which includes a lifting frame 1, a barrel mounting mechanism 2, a moving buffer assembly 3 and a detection assembly 4. The lifting frame 1 can move synchronously with the vehicle conveying plate chain; a sliding seat 5 is slidably connected to the bottom of the lifting frame 1, and the barrel mounting mechanism 2 is fixed to the bottom of the sliding seat 5. The barrel mounting mechanism 2 is used for lifting a plurality of barrels, and the extending direction of the barrels is perpendicular to the sliding direction of the sliding seat 5; the moving buffer assembly 3 is arranged between the sliding seat 5 and the lifting frame 1, and the moving buffer assembly 3 is used for limiting the position of the sliding seat 5 on the lifting frame 1 so that the sliding seat 5 is in a preset position under normal conditions; the detection assembly 4 is arranged on the lifting frame 1, and the detection assembly 4 is used for detecting the position of the sliding seat 5 so as to adjust the displacement speed of the lifting frame 1 when the position of the sliding seat 5 exceeds the first preset position, so as to adjust the relative position between the lifting frame 1 and the vehicle conveying plate chain, and when the position of the sliding seat 5 exceeds the second preset position, the lifting frame 1 and the vehicle conveying plate chain stop.

[0032] Embodiment 1

[0033] Continue to refer to Figures 1-3, one end of the hoisting frame 1 is installed on the on-line in-process filling machine, and the other end is slidably connected to a sliding seat 5. On the one hand, the setting of the sliding seat 5 enables the barrel mounting mechanism 2, which is connected to multiple filling gun barrels and restricts the displacement of multiple filling gun barrels, to be slidably connected to the hoisting frame 1, so as to realize in-process filling of the vehicle on the conveying plate chain by the on-line in-process filling machine through the filling gun barrels. On the other hand, the sliding seat 5 is arranged to be able to contact the detection component 4. That is, when there is a movement deviation in the synchronous movement between the on-line in-process filling machine and the vehicle conveying plate chain, a deviation will be generated synchronously between the filling gun and the vehicle filling port, and then the filling gun will abut against the vehicle filling port. The abutting force is further transmitted to the filling gun barrel connected to the filling gun, and then the filling gun barrel drives the barrel mounting mechanism 2 connected thereto to displace, and then the barrel mounting mechanism 2 drives the sliding seat 5 to displace transversely along the hoisting frame 1 until the sliding seat 5 contacts the detection component 4. Then, the detection component 4 controls the filling machine to adjust the speed according to the deviation direction of the sliding seat 5 or feeds back to directly stop the operation of the filling machine and the conveying plate chain, and then manually controls the on-line in-process filling machine and the vehicle conveying plate chain to reset synchronously, effectively avoiding damage to the vehicle filling port or damage to the filling gun and the filling gun barrel caused by a large deviation.

[0034] As Figure 1 shown, the sliding seat 5 includes a sliding plate 51 and a slider 52. The barrel mounting mechanism 2 is detachably connected to the bottom of the sliding plate 51; the slider 52 includes a first slider 521 and a second slider 522. One end of the first slider 521 and the second slider 522 is fixed to the sliding plate 51. The other end of the first slider 521 is slidably connected to the hoisting frame 1, and the other end of the second slider 522 is slidably connected to the moving buffer assembly 3, so that the barrel mounting mechanism 2 can displace along the length direction of the hoisting frame 1. The sliding seat 5 is used as an intermediate connecting member to connect the barrel mounting mechanism 2, the hoisting frame 1 and the moving buffer assembly 3. The first slider 521 is connected to the hoisting frame 1 so that the sliding plate 51 can freely slide along the length direction of the hoisting frame 1, thereby adapting to the position deviation caused by the asynchronous movement between the on-line in-process filling machine and the vehicle conveying plate chain. The second slider 522 is linked with the moving buffer assembly 3 to convert the abnormal tensile force generated by the position deviation caused by the asynchronous movement into the controllable sliding of the sliding seat 5 on the hoisting frame 1 and the moving buffer assembly 3, and transmit the tensile force to the moving buffer assembly 3. Then, the moving buffer assembly 3 buffers when the tensile force arrives and drives the sliding seat 5 to drive the barrel mounting mechanism 2 to return to the preset position after the tensile force dissipates. The detachable setting of the sliding plate 51 is convenient for replacing parts when they are damaged, effectively improving the flexibility of the conveying plate chain.

[0035] As Figure 3As shown in the figure, the moving buffer assembly 3 includes a connecting rod 31, an elastic member 32, a limiting sleeve 33, and a limiting member 34. The connecting rod 31 is fixedly connected to the lifting frame 1 and is arranged along the length direction of the lifting frame 1. A plurality of elastic members 32 are provided, and all of them are sleeved along the length direction of the connecting rod 31. The elastic members 32 limit the position of the second slider 522 on the connecting rod 31 and provide a force for buffering and resetting, so that the sliding seat 5 is in a preset position under normal conditions. A plurality of limiting sleeves 33 are provided, and all of them are installed on both sides of the second slider 522 and are slidably sleeved along the length direction of the connecting rod 31. The limiting sleeves 33 are all in contact with the elastic members 32, and the limiting sleeves 33 close to both sides of the second slider 522 are embedded into both sides of the second slider 522 and are in contact with its inner wall, so that the sliding seat 5 is slidably connected to the connecting rod 31 through the second slider 522. A plurality of limiting members 34 are provided, and all of them are installed at the limiting sleeves 33 far from the second slider 522 and are located on the opposite side of the elastic member 32. A plurality of limiting members 34 are in contact with the limiting sleeves 33, taking the connecting rod 31 as the installation base and sliding guide rod of the elastic member 32, the limiting sleeve 33, and the limiting member 34. While providing rigid support for the elastic member 32, the limiting sleeve 33, and the limiting member 34, it rigidly restricts the movement of the elastic member 32, the limiting sleeve 33, and the limiting member 34 along the preset direction. Under normal conditions, the elastic member 32 is in a pre-compressed or pre-stretched state and pushes the limiting sleeve 33, applying a symmetric pre-tightening force to the second slider 522 through the limiting sleeves 33 on both sides. The second slider 522 is limited to a preset position by the limiting sleeves 33 embedded in its both sides, thereby maintaining the sliding seat 5 in a preset position. Furthermore, the filling gun barrel is limited by the gun barrel installation mechanism 2 fixed to the sliding plate 51 to ensure that the filling gun barrel is aligned with the vehicle filling port. When the second slider 522 deviates from the preset position under a pulling force, the pulling force is transmitted to the sliding plate 51 of the sliding seat 5 through the gun barrel installation mechanism 2, driving the sliding plate 51 to slide along the lifting frame 1. The sliding plate 51 drives the second slider 522 to move synchronously. When the second slider 522 moves to one side, such as to the left side, the limiting sleeve 33 on the left side is pushed by the second slider 522 to slide along the connecting rod 31, thereby compressing the elastic member 32 on the left side. When the elastic member 32 is compressed, it generates a reverse elastic force to counteract the pulling force, slowing down the accelerating displacement of the sliding seat 5 and avoiding damage to the gun barrel or the filling port caused by a hard collision. At the same time, a plurality of elastic members 32 are provided and the plurality of elastic members 32 are arranged in segments along the connecting rod 31 to form a stepped buffer. The elastic members 32 in different segments will be compressed in sequence to gradually absorb the impact energy, effectively avoiding single-point overload failure.

[0036] As Figure 1 and Figure 3As shown, if the movement deviation between the filling machine and the conveying plate chain is too large, resulting in an excessive pulling force, the sliding seat 5 drives the second slider 522 to continuously compress the elastic member 32 on one side until a plurality of limiting sleeves 33 on this side are pushed to abut against the limiting member 34. At this time, the elastic member 32 reaches the maximum deformation and is restricted by the limiting member 34 and cannot be compressed any further. The displacement of the sliding seat 5 is forcibly limited and cannot slide further. At this time, the position of the sliding seat 5 exceeds the preset range, correspondingly triggering the detection component 4 to control the conveying plate chain to stop running, avoiding damage to the filling port or the gun barrel due to continuous pulling. When the synchronous error is eliminated and the pulling force disappears, the compressed elastic member 32 releases elastic potential energy. The limiting member 34 provides a support point for the force of the elastic member 32 to reset. The elastic member 32 pushes the limiting sleeve 33 to push the second slider 522 to reset. The elastic forces of the elastic members 32 on both sides are rebalanced, driving the sliding seat 5 back to the initial preset position to prepare for the next filling and alignment.

[0037] As Figure 1 and Figure 2 shown, the detection component 4 includes a detection switch 41. The detection switch 41 is arranged on the lifting frame 1 and is used to detect whether the sliding plate 51 is at the first preset position of the detection switch 41. When the position of the sliding seat 5 exceeds the first preset position, the displacement speed of the lifting frame 1 is adjusted to adjust the relative position between the lifting frame 1 and the vehicle conveying plate chain. The position of the sliding plate 51 is monitored by the detection switch 41. When the synchronous error of the conveying plate chain is small, such as when the filling gun and the filling port are only slightly misaligned, the pulling force drives the sliding seat 5 to slide along the lifting frame 1. The sliding plate 51 slides to below the detection end of the detection switch 41, and the detection switch 41 sends a signal to the filling machine control system. The control system adjusts the displacement speed of the lifting frame 1 accordingly, such as accelerating or decelerating, according to the offset direction, that is, the direction in which the sliding seat 5 slides left or right, so that the relative speed between the lifting frame 1 and the vehicle conveying plate chain matches, gradually reducing the relative position offset amount, and finally making the sliding plate 51 return to the preset position, aligning the filling gun and the filling port again. By dynamically adjusting the speed to correct the synchronous error, it avoids production interruption caused by directly stopping due to a small offset, effectively improving production efficiency.

[0038] As Figure 1 and Figure 2As shown in the figure, the detection component 4 further includes a roller travel switch 42 and a switch arm 43 located on the roller travel switch 42. The roller travel switch 42 is arranged on the lifting frame 1 and is used to detect whether the sliding plate 51 is at the second preset position of the roller travel switch 42. When the position of the sliding seat 5 exceeds the second preset position, the lifting frame 1 and the automotive conveying plate chain stop. The maximum offset between the in-line in-process filling machine and the automotive conveying plate chain is limited by the roller travel switch 42. When the sliding plate 51 slides along the lifting frame 1 to touch the switch arm 43 on the roller travel switch 42, the roller travel switch 42 alarms and sends a signal to the control systems of the in-line in-process filling machine and the automotive conveying plate chain, immediately stopping the operation of the in-line in-process filling machine and the automotive conveying plate chain, avoiding deformation of the filling port or fracture of the filling gun barrel caused by the continuous contact between the filling gun and the filling port. When an extreme offset occurs between the in-line in-process filling machine and the automotive conveying plate chain triggered mechanically by the roller travel switch 42, forced shutdown is carried out to ensure production safety.

[0039] Specifically, the number of both the detection switch 41 and the roller travel switch 42 is set to two. The two detection switches 41 and the two roller travel switches 42 are both arranged on the same side of the lifting frame 1. The area between the two detection switches 41 is defined as the first preset position, and the area between the two roller travel switches 42 is defined as the second preset position. It is set that when the position of the sliding seat 5 exceeds the left side of the first preset position, it indicates that the displacement speed of the lifting frame 1 is lower than the speed of the automotive conveying plate chain. Accordingly, the displacement acceleration of the lifting frame 1 is adjusted to match the relative speed between the lifting frame 1 and the automotive conveying plate chain, gradually reducing the relative position offset between the lifting frame 1 and the automotive conveying plate chain, and finally making the sliding plate 51 return to the preset position to realign the filling gun and the filling port. When the position of the sliding seat 5 exceeds the right side of the first preset position, it indicates that the displacement speed of the lifting frame 1 is higher than the speed of the automotive conveying plate chain. Accordingly, the displacement deceleration of the lifting frame 1 is adjusted to match the relative speed between the lifting frame 1 and the automotive conveying plate chain, gradually reducing the relative position offset between the lifting frame 1 and the automotive conveying plate chain, and finally making the sliding plate 51 return to the preset position to realign the filling gun and the filling port. Similarly, when the sliding plate 51 has exceeded the first preset position but continues to slide along the lifting frame 1 until it touches the switch arm 43 on the left roller travel switch 42 or the switch arm 43 on the right roller travel switch 42, it correspondingly indicates that the displacement speed of the lifting frame 1 is too low or too high at this time. At this time, the maximum offset between the in-line in-process filling machine and the automotive conveying plate chain has been reached. The roller travel switch 42 alarms and sends a signal to the control systems of the filling machine and the automotive conveying plate chain, immediately stopping the operation of the filling machine and the automotive conveying plate chain, avoiding deformation of the filling port or fracture of the filling gun barrel caused by the continuous contact or sudden impact between the filling gun and the filling port, and ensuring production safety.

[0040] Optionally, the barrel mounting mechanism 2 includes a hoisting channel steel 21 and a fixator 22. Hoisting chutes 211 are symmetrically arranged on four end faces of the hoisting channel steel 21, and it is fixedly connected to the bottom of the sliding seat 5 through the top hoisting chute 211 to move along the hoisting frame 1 with the sliding seat 5; the fixator 22 is fixed in the bottom hoisting chute 211 of the hoisting channel steel 21 and is arranged along the length direction of the hoisting channel steel 21, and is used for fixing and hoisting multiple barrels so that the extending direction of the barrels is perpendicular to the sliding direction of the sliding seat 5, so that the hoisting channel steel 21 is fixedly connected to the bottom of the sliding seat 5 through the top hoisting chute 211, enabling the hoisting channel steel 21 to slide synchronously with the sliding seat 5 along the hoisting frame 1. When the barrel is subjected to a lateral pulling force, the force is transmitted to the sliding seat 5 through the hoisting channel steel 21, driving the sliding seat 5 to move left or right along the hoisting frame 1 to trigger the moving buffer assembly 3 to buffer or trigger the detection assembly 4 to detect the position of the sliding plate 51. The symmetric chutes arranged on the four end faces provide the possibility of installing the barrel mounting mechanism 2 in multiple directions and with multiple components, effectively improving the installation flexibility of the barrel mounting mechanism 2. The setting of the fixator 22 stably and effectively fixes multiple barrels, ensuring their alignment with the conveyor chain plate. At the same time, the pulling force received by the barrel is transmitted to the hoisting channel steel 21 and finally transmitted to the sliding seat 5 by the hoisting channel steel 21 to drive the sliding seat 5 to slide along the hoisting frame 1 to trigger the moving buffer assembly 3 to buffer and absorb energy or trigger the detection assembly 4 to determine whether to stop the machine.

[0041] As Figure 2 shown, the fixator 22 includes a fixing block 221 and a fixing member 222. The fixing blocks 221 are symmetrically arranged in two. The inner sides of the two fixing blocks facing each other are recessed inward to form a groove 223 for fixing and limiting the barrel; the fixing member 222 penetrates through the two symmetrically arranged fixing blocks 221 and is connected to the hoisting chute 211 to adjust the size of the groove 223 so that the fixator 22 can adapt to barrels of various sizes. The inwardly recessed groove 223 provided on the inner sides of the two fixing blocks 221 facing each other fits the outer surface of the barrel. The barrel is limited by the groove 223 and the clamping force received by the barrel is dispersed to avoid barrel deformation caused by local stress concentration. At the same time, the limiting effect of the groove 223 prevents the barrel from shaking laterally due to vibration during the filling process, resulting in an alignment error of the filling port. The fixing member 222 penetrates through the two fixing blocks 221 and is connected to the hoisting chute 211 of the hoisting channel steel 21. Then, by tightening or loosening the fixing member 222, the distance between the two fixing blocks 221 is adjusted, thereby changing the size of the groove 223 and enabling the groove 223 to limit and fix barrels of different diameters. Thus, there is no need to customize the fixator 22 for each type of barrel, effectively reducing the production and maintenance costs of the equipment.

[0042] As Figure 1 and Figure 3As shown in the figure, the universal barrel anti-pulling structure further includes a limit block 6. The limit block 6 is detachably connected to the lifting frame 1 and is located between the lifting frame 1 and the moving buffer assembly 3. When the barrel mounting mechanism 2 displaces along the length direction of the lifting frame 1, the limit block 6 can come into contact with the second slider 522 to limit the displacement stroke of the sliding seat 5. The limit block 6 is mounted on the lifting frame 1, and a safety gap is reserved between the initial position of the limit block 6 and the second slider 522. This safety gap is greater than the maximum allowable compression of the elastic member 32 of the moving buffer assembly 3, so that the second slider 522 will not contact the limit block 6 when the displacement generated by the elastic member 32 absorbing energy through buffering is within the normal offset range, avoiding interfering with the normal operation of the moving buffer assembly 3. When the synchronous offset of the conveying plate chain is too large and the pulling force exceeds the maximum buffering capacity of the elastic member 32, the sliding seat 5 drives the second slider 522 to slide along the connecting rod 31 of the moving buffer assembly 3, compressing the elastic member 32 to the limit position. At this time, the elastic member 32 is restricted by the limit sleeve 33 and the limiting member 34 and cannot be further compressed. At this time, if the pulling force has not been eliminated, that is, if the detection component 4 does not trigger a shutdown in time, the second slider 522 will continue to move in the direction of the limit block 6 until it abuts against the limit block 6. Then, the rigid structure of the limit block 6 physically blocks the sliding of the second slider 522 and terminates the displacement of the sliding seat 5, so as to prevent the barrel from being pulled off or the filling port from being deformed by collision.

[0043] The implementation principle of the first embodiment of this application is as follows: One end of the lifting frame 1 is installed on the on-line in-process filling machine, and the other end is slidably connected with a sliding seat 5. On the one hand, the setting of the sliding seat 5 enables the barrel mounting mechanism 2, which is connected to multiple filling barrels and restricts the displacement of the multiple filling barrels, to be slidably connected with the lifting frame 1, so as to realize in-process filling of the vehicle on the conveying plate chain by the on-line in-process filling machine through the filling barrel. On the other hand, the sliding seat 5 is arranged to be able to come into contact with the detection component 4. That is, when there is a moving offset in the synchronous travel between the on-line in-process filling machine and the vehicle conveying plate chain, there will be a deviation between the filling gun and the vehicle filling port synchronously. Further, the abutting force is transmitted to the filling barrel connected to the filling gun, and then the filling barrel drives the barrel mounting mechanism 2 connected to it to displace, and then the barrel mounting mechanism 2 drives the sliding seat 5 to displace transversely along the lifting frame 1 until the sliding seat 5 comes into contact with the detection component 4. Then, the detection component 4 controls the filling machine to adjust the speed accordingly according to the offset direction of the sliding seat 5 or feeds back to the filling machine and the conveying plate chain control system to directly stop the operation of the filling machine and the conveying plate chain, and then manually controls the on-line in-process filling machine and the vehicle conveying plate chain to reset synchronously.

[0044] Embodiment 2 Please refer to Figure 4 and Figure 5 This embodiment is different from the first embodiment in that the universal barrel anti-pulling structure further includes a blowing mechanism 7 and a blowing pipe 8.

[0045] Please refer to Figure 4 and Figure 5 , the air blowing mechanism 7 includes a sleeve 71 and a piston 72. The piston 72 is hermetically and slidably connected to the sleeve 71. The sleeve 71 is fixed to the side of the lifting frame 1, and the piston 72 is connected to the sliding seat 5. A plurality of groups of air blowing pipes 8 are provided, and one ends of the plurality of groups of air blowing pipes 8 are all communicated with the air outlet end of the sleeve 71. The air outlet end of one group of air blowing pipes 8 faces the detection end of the detection assembly 4, the air outlet end of one group of air blowing pipes 8 faces the first preset position, and the air outlet end of another group of air blowing pipes 8 faces the moving buffer assembly 3. When a synchronous offset occurs between the filling machine and the conveying plate chain, causing the sliding seat 5 to slide left or right along the lifting frame 1, the piston 72 in the sleeve 71 moves synchronously with the sliding seat 5. When the sliding seat 5 drives the piston 72 out of the sleeve 71, the internal volume of the sleeve 71 increases and external air is inhaled from the air inlet end. When the sliding seat 5 resets, the piston 72 is pushed back into the sleeve 71 again, the internal volume of the sleeve 71 decreases and air is discharged from the air outlet end. One group of air blowing pipes 8 is arranged such that the air outlet end faces the detection end of the detection assembly 4, so that the air flow discharged from the inside of the sleeve 71 directly blows towards the detection end of the detection assembly 4 through the fluid-connected air blowing pipe 8, blowing away impurities such as dust and metal debris attached to the detection end of the detection assembly 4, preventing the signal of the detection assembly 4 from being blocked or mis-triggered. One group of air blowing pipes 8 is arranged such that the air outlet end faces a preset position on the lifting frame 1, so that the blown air flow blows towards the first sliding contact surface between the sliding seat 5 and the lifting frame 1, removing impurities such as oil stains, dust and metal debris on the sliding contact surface, reducing the frictional resistance when the sliding seat 5 slides, ensuring smooth displacement of the sliding seat 5 and avoiding delay in triggering the detection assembly 4 due to the failure to transmit the pulling force in time caused by jamming. Another group of air blowing pipes 8 is arranged such that the air outlet end faces the moving buffer assembly 3, so that the blown air flow blows into the gap between the elastic member 32 and the connecting rod 31, cleaning the dust and debris in the gap, preventing impurities such as dust and metal debris from accumulating in the gap and causing the elastic member 32 to be jammed by impurities and unable to be compressed or reset normally. At the same time, the air flow can also blow towards the second sliding contact surface between the limiting sleeve 33 and the connecting rod 31, removing impurities such as oil stains, dust and metal debris on the sliding contact surface between the limiting sleeve 33 and the connecting rod 31, reducing the sliding friction between the limiting sleeve 33 and the connecting rod 31, and avoiding the failure of the buffer force caused by the jamming of the limiting sleeve 33 and the inability to compress the elastic member 32.

[0046] Continue to refer to Figure 4 and Figure 5, the air outlet ends of the air blowing pipes 8 are arranged staggeredly, and the blown air flows along the length directions of the hoisting frame 1 and the moving buffer assembly 3. By arranging the air outlet ends of the air blowing pipes 8 staggeredly, the purging areas of the air flows blown out from each air outlet end are covered in a staggered manner in the plane perpendicular to the length direction. The air flows work independently of each other without interference, effectively concentrating the energy of the air flows, ensuring that pollutants are completely blown out. By setting the blown air to flow along the length direction, the flowing direction of the air flow is consistent with the direction of pollutant accumulation, so that impurities such as dust and metal chips distributed along the length direction of the first sliding contact surface can be continuously pushed away, or impurities such as dust and metal chips distributed along the length direction of the second sliding contact surface when the elastic member 32 is compressed can be continuously pushed away. At the same time, the air flow flowing along the length direction will completely blow away the impurities located on the first sliding contact surface or the second sliding surface along one side direction of the sliding contact surface, thereby ensuring the smooth sliding of the sliding seat 5 and the free expansion and contraction of the elastic member, and effectively improving the response speed of the anti-pulling structure.

[0047] Among them, the sleeve 71 is provided with an air suction port for sucking in air flow at the top and a reflux valve arranged at the air suction port. When the sleeve 71 sucks in air flow, the reflux valve is correspondingly opened, and when the sleeve 71 discharges air flow, the reflux valve is correspondingly closed. Specifically, the air blowing mechanism 7 drives the piston 72 to reciprocate inside the sleeve 71 through the reciprocating movement of the sliding seat 5, and then sucks in external air through the air suction port opened at the top of the sleeve 71, and then discharges the air from the air outlet end of the air blowing pipe 8 to clean the impurities located at the detection end of the detection assembly 4, the first sliding contact surface or the second sliding contact surface.

[0048] The implementation principle of the second embodiment of the present application is as follows: The sleeve 71 is provided with an air suction port for sucking in air flow at the top and a reflux valve arranged at the air suction port. When the sleeve 71 sucks in air flow, the reflux valve is correspondingly opened, and when the sleeve 71 discharges air flow, the reflux valve is correspondingly closed. Specifically, the air blowing mechanism 7 drives the piston 72 to reciprocate inside the sleeve 71 through the reciprocating movement of the first slider 521, and then sucks in external air through the air suction port opened at the top of the sleeve 71, and then discharges the air from the air outlet end of the air blowing pipe 8 to clean the impurities located at the detection end of the detection assembly 4, the first sliding contact surface or the second sliding contact surface, avoiding the impurities from blocking or causing false triggering of the signal of the detection assembly 4 due to blocking or interfering with the functions of the sliding seat 5, the hoisting frame 1 and the moving buffer assembly 3, ensuring that the key components are continuously kept clean during the working process, realizing the functional integration of passive anti-pulling protection and active cleaning protection, and effectively improving the reliability and service life of the whole system.

[0049] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A universal muzzle barrel anti-pulling structure, characterized in that Comprising: A hoisting frame (1) capable of moving synchronously with the automotive conveyor plate chain; a sliding seat (5) slidably connected to the bottom of the hoisting frame (1); A barrel mounting mechanism (2) fixed to the bottom of the sliding seat (5), the barrel mounting mechanism (2) being used for hoisting a plurality of barrels, and the extending direction of the barrels being perpendicular to the sliding direction of the sliding seat (5); A moving buffer assembly (3) disposed between the sliding seat (5) and the hoisting frame (1), the moving buffer assembly (3) being used for limiting the position of the sliding seat (5) on the hoisting frame (1) so that the sliding seat (5) is in a preset position under normal conditions; A detection assembly (4) disposed on the hoisting frame (1), the detection assembly (4) being used for detecting the position of the sliding seat (5), so as to adjust the displacement speed of the hoisting frame (1) when the position of the sliding seat (5) exceeds a first preset position, thereby adjusting the relative position between the hoisting frame (1) and the automotive conveyor plate chain, and when the position of the sliding seat (5) exceeds a second preset position, the hoisting frame (1) and the automotive conveyor plate chain stop.

2. The universal barrel anti-pulling structure according to claim 1, characterized in that, The universal barrel anti-pulling structure further comprises: A blowing mechanism (7) including a sleeve (71) and a piston (72), the piston (72) being hermetically and slidably connected to the sleeve (71), the sleeve (71) being fixed to the side of the hoisting frame (1), and the piston (72) being connected to the sliding seat (5); A plurality of blowing pipes (8), one end of each blowing pipe (8) being communicated with the air outlet end of the sleeve (71), the air outlet end of one group of the blowing pipes (8) facing the detection end of the detection assembly (4), the air outlet end of one group of the blowing pipes (8) facing the first preset position, and the air outlet end of another group of the blowing pipes (8) facing the moving buffer assembly (3).

3. The universal barrel anti-pulling structure according to claim 2, characterized in that The air outlet ends of the blowing pipes (8) are staggeredly arranged, and the blown air flows along the length directions of the hoisting frame (1) and the moving buffer assembly (3).

4. A universal barrel anti-pulling structure according to claim 1, characterized in that, The sliding seat (5) includes: A sliding plate (51), the barrel mounting mechanism (2) being detachably connected to the bottom of the sliding plate (51); Sliders (52) including a first slider (521) and a second slider (522), one ends of the first slider (521) and the second slider (522) being fixed to the sliding plate (51), the other end of the first slider (521) being slidably connected to the hoisting frame (1), and the other end of the second slider (522) being slidably connected to the moving buffer assembly (3), so that the barrel mounting mechanism (2) can be displaced along the length direction of the hoisting frame (1).

5. The universal barrel anti-pulling structure according to claim 4, characterized in that, The moving buffer assembly (3) includes: A connecting rod (31) fixedly connected to the hoisting frame (1) and arranged along the length direction of the hoisting frame (1); A plurality of elastic members (32) sleeved along the length direction of the connecting rod (31), the elastic members (32) limiting the position of the second slider (522) on the connecting rod (31) and providing a force for buffering and resetting, so that the sliding seat (5) is in a preset position under normal conditions; Limit sleeves (33), a plurality of which are provided and are all installed on both sides of the second slider (522) and are slidably sleeved along the length direction of the connecting rod (31). The limit sleeves (33) are all in contact with the elastic member (32), and the limit sleeves (33) near both sides of the second slider (522) are embedded into both sides of the second slider (522) and are in contact with its inner wall, so that the sliding seat (5) is slidably connected to the connecting rod (31) through the second slider (522); Limit members (34), a plurality of which are provided and are all installed at the limit sleeves (33) far from the second slider (522) and are located on the opposite side of the elastic member (32). The limit members (34) are in contact with the limit sleeves (33).

6. A universal barrel anti-pulling structure according to claim 4, characterized in that, The detection assembly (4) includes: a detection switch (41) provided on the hoisting frame (1) for detecting whether the sliding plate (51) is at the first preset position of the detection switch (41). When the position of the sliding seat (5) exceeds the first preset position, the displacement speed of the hoisting frame (1) is adjusted to adjust the relative position between the hoisting frame (1) and the automobile conveying chain.

7. The universal barrel anti-pulling structure according to claim 6, characterized in that: The detection assembly (4) further includes: a roller travel switch (42) provided on the hoisting frame (1) for detecting whether the sliding plate (51) is at the second preset position of the roller travel switch (42). When the position of the sliding seat (5) exceeds the second preset position, the hoisting frame (1) and the automobile conveying chain stop.

8. The universal barrel anti-pulling structure according to claim 3, characterized in that, The barrel mounting mechanism (2) includes: A hoisting channel steel (21) is symmetrically provided with hoisting chutes (211) on four end faces and is fixedly connected to the bottom of the sliding seat (5) through the top hoisting chute (211); so as to move along with the sliding seat (5) along the hoisting frame (1); A fixator (22) is fixed in the hoisting chute (211) at the bottom of the hoisting channel steel (21) and is arranged along the length direction of the hoisting channel steel (21) for fixedly hoisting a plurality of barrels so that the extending direction of the barrels is perpendicular to the sliding direction of the sliding seat (5).

9. The universal barrel anti-pulling structure according to claim 8, characterized in that The fixator (22) includes: Fixing blocks (221), two of which are symmetrically arranged. The sides of the two fixing blocks (221) facing each other are both recessed inward to form grooves (223) for fixing and limiting the barrels; A fixing member (222) passes through the two symmetrically arranged fixing blocks (221) and is connected to the hoisting chute (211) to adjust the size of the groove (223) so that the fixator (22) can adapt to barrels of various sizes.

10. A universal barrel anti-pulling structure according to claim 4, characterized in that, The universal barrel anti-pulling structure further includes a limit block (6). The limit block (6) is detachably connected to the hoisting frame (1) and is located between the hoisting frame (1) and the moving buffer assembly (3). When the barrel mounting mechanism (2) displaces along the length direction of the hoisting frame (1), the limit block (6) can contact the second slider (522) to limit the displacement stroke of the sliding seat (5).

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