Cover feeding device for plastic barrel

Abstract

The utility model relates to the field of container covering, in particular to a plastic barrel covering device which comprises a self-adjusting assembly and a covering driving assembly. The self-adjusting assembly comprises an adjusting cylinder sleeve, an adjusting sliding block, an adjusting connecting rod and an adjusting elastic piece, the adjusting cylinder sleeve is provided with a rotation driving piece, and the rotation driving piece is used for driving the adjusting cylinder sleeve to rotate; the adjusting sleeve is provided with an adjusting cavity, the adjusting sliding block is matched with the adjusting cavity in a sliding mode in the vertical direction, a gap is formed between the adjusting sliding block and the inner wall of the adjusting cavity, the adjusting connecting rod is installed on the adjusting sliding block, and an upper cover rubber mat is installed at the bottom of the adjusting connecting rod. The two ends of the adjusting elastic piece are installed on the inner wall of the adjusting sliding block and the inner wall of the adjusting sleeve respectively. The upper cover driving assembly is used for driving the adjusting sleeve to move in the vertical direction. The plastic barrel has the effect that when the barrel cover is not coaxial with the plastic barrel, it is ensured that the barrel cover can still be in threaded fit with the plastic barrel.

Description

Technical Field

[0001] The present application relates to the field of container cover tightening, and in particular to a plastic barrel cover device. Background Art

[0002] Chemical products need to be stored in plastic barrels for easy storage and transportation. Before filling the plastic barrels used to store chemical products, in order to ensure the cleanliness of the internal chamber of the plastic barrel, it is necessary to cover the plastic barrel with a barrel cover thread to prevent contaminants from entering the internal chamber of the plastic barrel.

[0003] In the existing related technology, the plastic barrel cover device includes a conveyor belt, a barrel cover storage rack, a cover clamp, a cover motor and a linear module. The conveyor belt is used to convey the plastic barrel, the barrel cover storage rack is used to stack the barrel covers, the cover clamp is used to transfer the barrel covers stacked on the barrel cover storage rack to the top of the plastic barrel, the output shaft of the cover motor is fixedly installed with a cover rubber pad, and the linear module is used to drive the cover motor to move in the vertical direction.

[0004] When putting a lid on a plastic barrel, the conveyor belt conveys the plastic barrel to the bottom of the lid motor, the lid gripper grabs the barrel lid and transfers it to the top of the plastic barrel, and the linear module drives the lid motor to move vertically toward the plastic barrel until the lid rubber pad fits tightly against the barrel lid. After the lid rubber pad fits tightly against the barrel lid, the lid motor rotates to drive the barrel lid to rotate through friction, so that the barrel lid thread fits into the plastic barrel.

[0005] With regard to the above-mentioned related technologies, after the barrel cover is transferred to the top of the plastic barrel, there is a situation where the barrel cover is not coaxial with the plastic barrel, causing the barrel cover to be stuck and difficult to rotate before it has completely entered the thread of the plastic barrel, which in turn makes it difficult for the barrel cover to be threadedly engaged with the plastic barrel under the action of the upper cover motor. Summary of the invention

[0006] In order to ensure that the barrel cover can still be threadedly engaged with the plastic barrel when the barrel cover is not coaxial with the plastic barrel, the present application provides a plastic barrel cover device.

[0007] The present application provides a plastic barrel cover device that adopts the following technical solution:

[0008] A plastic barrel cover device, comprising a self-adjusting component and a cover driving component;

[0009] The self-adjusting assembly comprises an adjusting sleeve, an adjusting slider, an adjusting connecting rod and an adjusting elastic member, and the adjusting sleeve is provided with a rotating driving member, and the rotating driving member is used to drive the adjusting sleeve to rotate;

[0010] The adjusting sleeve is provided with an adjusting chamber, the adjusting slider slides in the vertical direction and fits in the adjusting chamber, a gap is provided between the adjusting slider and the inner wall of the adjusting chamber, the adjusting connecting rod is installed on the adjusting slider, an upper cover rubber pad is installed at the bottom of the adjusting connecting rod, and two ends of the adjusting elastic member are respectively installed on the adjusting slider and the inner wall of the adjusting sleeve;

[0011] The upper cover driving assembly is used to drive the adjusting sleeve to move in the vertical direction.

[0012] By adopting the above technical solution, after the barrel cover is transferred to the top of the plastic barrel, the upper cover driving assembly drives the adjusting sleeve to move vertically in the direction close to the plastic barrel. After the upper cover rubber pad contacts the barrel cover, the upper cover driving assembly continues to make the adjusting sleeve move vertically in the direction close to the plastic barrel, so that the upper cover rubber pad is tightly fitted to the barrel cover. After the upper cover rubber pad is tightly fitted to the barrel cover, the rotating driving member drives the adjusting sleeve to rotate, driving the adjusting connecting rod to rotate, so that the barrel cover thread is fitted to the plastic barrel through the friction between the upper cover rubber pad and the barrel cover.

[0013] When the barrel cover is not coaxial with the plastic barrel, the adjustment connecting rod and the adjustment slider swing after the upper cover rubber pad contacts the barrel cover, so that the adjustment connecting rod is coaxially arranged with the barrel cover. After the adjustment connecting rod swings to be coaxial with the barrel cover, the upper cover driving assembly causes the adjustment connecting rod to move in the direction close to the plastic barrel and the rotating driving member drives the adjustment connecting rod to rotate, so that the barrel cover gradually enters the thread of the plastic barrel. When the barrel cover gradually enters the thread of the plastic barrel, the adjustment elastic member will deform accordingly with the position and angle of the barrel cover, and the adjustment connecting rod will also swing accordingly, until the barrel cover is completely threadedly engaged with the plastic barrel under the rotation of the adjustment connecting rod, thereby ensuring that the barrel cover can still be threadedly engaged with the plastic barrel when the barrel cover is not coaxial with the plastic barrel, reducing the occurrence of jamming due to misalignment of the barrel cover thread.

[0014] Optionally, the adjusting link is provided with a connecting elastic member, and the connecting elastic member is provided with a barrel cover positioning plate.

[0015] By adopting the above technical solution, after the rubber pad of the upper cover contacts the barrel cover, the barrel cover opens the barrel cover positioning plate, so that the barrel cover positioning plate is tightly fitted against the barrel cover, and then when the adjusting connecting rod drives the barrel cover to enter the thread of the plastic barrel, the adjusting connecting rod is always coaxial with the barrel cover, thereby reducing the degree of shaking of the barrel cover when it rotates.

[0016] Optionally, it further comprises a barrel cover storage rack and a transfer drive assembly, wherein the barrel cover storage rack is used to stack barrel covers, and the transfer drive assembly is used to drive the adjustment connecting rod to move between the barrel cover storage rack and the plastic barrel;

[0017] The adjusting connecting rod is provided with a negative pressure suction cup, and the negative pressure suction cup is used for adsorbing and fixing the barrel cover in the barrel cover storage rack to the adjusting connecting rod.

[0018] By adopting the above technical solution, the negative pressure suction cup absorbs and fixes the barrel cover in the barrel cover storage rack to the adjusting connecting rod, so that the barrel cover moves to the top of the plastic barrel together with the adjusting connecting rod, and then moves toward the position close to the thread of the plastic barrel together with the adjusting connecting rod, thereby reducing the shaking of the barrel cover during the transfer process, and reducing the occurrence of the deflection of the barrel cover after it is separated from the upper cover clamping claw as in the prior art

[0019] Optionally, a positioning cone hole is formed through the adjustment chamber, the top of the positioning cone hole is connected to the adjustment chamber, the inner diameter of the top of the positioning cone hole is larger than the inner diameter of the bottom, the adjustment connecting rod is slidably inserted into the positioning hole, and the adjustment connecting rod sleeve is provided with a positioning cone block.

[0020] By adopting the above technical solution, when the rubber pad of the upper cover is not in contact with the barrel cover, the positioning cone block is tightly fitted against the inner wall of the positioning cone block under the elastic force of the adjusting elastic member, so that the adjusting connecting rod is not easy to shake, ensuring that the adjusting connecting rod, the barrel cover and the plastic barrel are all coaxial.

[0021] After the rubber pad of the upper cover contacts the barrel cover, the adjusting sleeve moves toward the position of the barrel cover and the adjusting elastic member deforms, so that the positioning cone block is away from the inner wall of the positioning cone hole. As the deformation of the adjusting elastic member increases, the width of the gap between the positioning cone block and the positioning cone hole gradually increases, so that the adjusting connecting rod has enough space to swing, thereby ensuring that when the barrel cover gradually enters the thread of the plastic barrel, the adjusting connecting rod swings accordingly with the position and angle of the barrel cover.

[0022] Optionally, the adjusting link is slidably mounted in the vertical direction and is fitted with a sliding sleeve, and the negative pressure suction cup is mounted on the sliding sleeve.

[0023] By adopting the above technical solution, after the barrel cover contacts the top of the plastic barrel, the adjusting sleeve, the adjusting slider, the adjusting connecting rod and the adjusting elastic member move together in a direction close to the plastic barrel until the upper cover rubber pad contacts the barrel cover.

[0024] After the upper cover rubber pad contacts the barrel cover, the adjusting sleeve moves toward the barrel cover, causing the adjusting elastic member to deform, thereby causing the upper cover rubber pad to fit tightly against the barrel cover, so that the barrel cover rotates with the rotation of the adjusting connecting rod. This reduces the possibility that the upper cover rubber pad contacts the barrel cover before the negative pressure suction cup, making it difficult for the barrel cover to be adsorbed by the negative pressure suction cup and detached from the barrel cover storage rack.

[0025] Optionally, the sliding sleeve is installed with a buffer rubber pad, and the buffer rubber pad is located on the top of the sliding sleeve.

[0026] By adopting the above technical solution, when the upper cover rubber pad contacts the barrel cover, the buffer rubber pad reduces the impact force generated by the collision between the adjusting slider and the sliding sleeve, so that the adjusting slider or the sliding sleeve is not easily damaged by the collision.

[0027] Optionally, the barrel cover storage rack is provided with a storage slot, and the storage slot is used to store the barrel covers;

[0028] The transfer drive assembly includes a horizontal base plate, a horizontal slider, a horizontal screw and a horizontal drive member. The horizontal slider slides in a horizontal direction and fits in the horizontal base plate. The horizontal screw is threaded through the horizontal slider. The horizontal drive member is used to drive the horizontal screw to rotate. The adjusting sleeve is installed on the horizontal slider.

[0029] By adopting the above technical solution, when the barrel cover in the barrel cover storage rack needs to be adsorbed and fixed on the adjusting connecting rod, the horizontal driving member drives the horizontal screw to rotate, and the rotation of the horizontal screw drives the horizontal slider to move in the horizontal direction toward the position of the barrel cover storage rack, thereby moving the adjusting sleeve, the adjusting connecting rod and the negative pressure suction cup to the top of the storage tank.

[0030] After the adjusting sleeve, adjusting connecting rod and negative pressure suction cup move to the top of the storage tank, the upper cover driving assembly makes the adjusting sleeve, adjusting connecting rod and negative pressure suction cup move vertically to the inside of the storage tank, so that the barrel cover negative pressure suction cup adsorbs and fixes the barrel cover to the adjusting connecting rod, and the structure is simple and reliable.

[0031] Optionally, the upper cover driving assembly includes a vertical frame, a vertical slider, a vertical screw and a vertical driving member, the vertical slider slides in the vertical direction and cooperates with the vertical frame, the vertical screw thread is passed through the vertical slider, the vertical driving member is used to drive the vertical screw to rotate, and the adjusting sleeve is installed on the vertical slider.

[0032] By adopting the above technical solution, when the adjustment sleeve needs to move vertically toward the direction close to the plastic barrel, the vertical drive member drives the vertical screw to rotate, and the rotation of the vertical screw drives the vertical slider to move in the vertical direction, thereby making the adjustment sleeve move toward the direction close to the plastic barrel. The structure is simple and reliable.

[0033] 091 Optionally, it also includes a conveyor belt, which is used to convey the plastic barrel. The conveyor belt is provided with a plastic barrel positioning assembly, and the plastic barrel positioning assembly includes a clamping plate and a clamping drive member, and the clamping drive member is used to drive the clamping plate to move toward or away from the plastic barrel.

[0034] By adopting the above technical solution, when the barrel cover gradually enters the thread of the plastic barrel, the clamping drive member makes the clamping plate tightly fit against the plastic barrel, thereby making it difficult for the plastic barrel to rotate with the rotation of the barrel cover.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. After the barrel cover is transferred to the top of the plastic barrel, the upper cover driving assembly drives the adjusting sleeve to move vertically toward the plastic barrel. After the upper cover rubber pad contacts the barrel cover, the upper cover driving assembly continues to move the adjusting sleeve vertically toward the plastic barrel, thereby making the upper cover rubber pad fit tightly against the barrel cover. After the upper cover rubber pad fits tightly against the barrel cover, the rotating driving member drives the adjusting sleeve to rotate, driving the adjusting connecting rod to rotate, thereby making the barrel cover thread fit with the plastic barrel through the friction between the upper cover rubber pad and the barrel cover.

[0037] When the barrel cover is not coaxial with the plastic barrel, the adjustment connecting rod and the adjustment slider swing after the upper cover rubber pad contacts the barrel cover, so that the adjustment connecting rod is coaxially arranged with the barrel cover. After the adjustment connecting rod swings to be coaxial with the barrel cover, the upper cover driving assembly causes the adjustment connecting rod to move in the direction close to the plastic barrel and the rotating driving member drives the adjustment connecting rod to rotate, so that the barrel cover gradually enters the thread of the plastic barrel. When the barrel cover gradually enters the thread of the plastic barrel, the adjustment elastic member will deform accordingly with the position and angle of the barrel cover, and the adjustment connecting rod will also swing accordingly, until the barrel cover is completely threadedly engaged with the plastic barrel under the rotation of the adjustment connecting rod, thereby ensuring that the barrel cover can still be threadedly engaged with the plastic barrel when the barrel cover is not coaxial with the plastic barrel, reducing the occurrence of jamming due to misalignment of the barrel cover thread.

[0038] 2. After the rubber pad of the upper cover contacts the barrel cover, the barrel cover opens the barrel cover positioning plate, so that the barrel cover positioning plate is tightly fitted against the barrel cover, so that when the adjusting connecting rod drives the barrel cover to enter the thread of the plastic barrel, the adjusting connecting rod is always coaxial with the barrel cover, thereby reducing the degree of shaking of the barrel cover when it rotates.

[0039] 3. When the rubber pad of the upper cover does not contact the barrel cover, the positioning cone block is tightly fitted against the inner wall of the positioning cone block under the elastic force of the adjusting elastic member, so that the adjusting connecting rod is not easy to shake, ensuring that the adjusting connecting rod, barrel cover and plastic barrel are all coaxial.

[0040] After the rubber pad of the upper cover contacts the barrel cover, the adjusting sleeve moves toward the position of the barrel cover and the adjusting elastic member deforms, so that the positioning cone block is away from the inner wall of the positioning cone hole. As the deformation of the adjusting elastic member increases, the width of the gap between the positioning cone block and the positioning cone hole gradually increases, so that the adjusting connecting rod has enough space to swing, thereby ensuring that when the barrel cover gradually enters the thread of the plastic barrel, the adjusting connecting rod swings accordingly with the position and angle of the barrel cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is an overall schematic diagram of the overall structure of the embodiment of the present application.

[0042] Figure 2It is a cross-sectional schematic diagram of the self-adjusting component of the embodiment of the present application.

[0043] Figure 3 It is a cross-sectional schematic diagram of the adjusting sleeve and the adjusting slider according to the embodiment of the present application.

[0044] Figure 4 It is a cross-sectional schematic diagram of the adjusting connecting rod and the sliding sleeve according to the embodiment of the present application.

[0045] Figure 5 It is a schematic diagram of the coordination relationship between the barrel cover positioning plate and the storage limiting plate in the embodiment of the present application.

[0046] Explanation of reference numerals: 1. self-adjusting assembly; 11. adjusting sleeve; 111. adjusting chamber; 112. rotating groove; 113. positioning cone hole; 12. adjusting slider; 121. rotating protrusion; 13. adjusting connecting rod; 131. upper cover rubber pad; 132. supporting protrusion; 14. adjusting elastic member; 15. rotating driving member; 16. sliding sleeve; 161. positioning cone block; 162. buffer rubber pad; 17. connecting elastic member; 18. barrel cover positioning plate; 181. positioning cavity; 2. upper cover driving assembly; 21. vertical frame Body; 22, vertical slider; 23, vertical screw; 24, vertical drive; 241, synchronous belt; 3, barrel cover storage rack; 301, storage tank; 31, storage bottom plate; 32, storage limit plate; 4, transfer drive assembly; 41, horizontal bottom plate; 42, horizontal slider; 43, horizontal screw; 44, horizontal drive; 5, conveyor belt; 51, clamping plate; 52, clamping drive; 6, guide slide; 61, guide slide; 7, suction cup mounting seat; 701, negative pressure airway; 71, negative pressure connection port; 72, negative pressure suction cup. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1-5 This application is described in further detail.

[0048] The present application embodiment discloses a plastic barrel cover device. Figure 1 The plastic barrel cover device includes a self-adjusting component 1, a cover driving component 2, a frame, a barrel cover storage rack 3, a transfer driving component 4 and a conveyor belt 5.

[0049] Reference Figure 1 The conveyor belt 5 is fixedly mounted on the frame, and the conveyor belt 5 is arranged in a horizontal direction so that the plastic barrel can be stably conveyed in the horizontal direction. The conveyor belt 5 is provided with two plastic barrel positioning components, and the two plastic barrel positioning components are respectively located on both sides of the conveyor belt 5.

[0050] The plastic barrel positioning assembly includes a clamping plate 51 and a clamping drive 52. In the embodiment of the present application, the type of the clamping drive 52 is a three-axis cylinder. The cylinder body of the clamping drive 52 is fixedly mounted on the frame of the conveyor belt 5, and the rod body of the clamping drive 52 is arranged horizontally toward the conveyor belt 5. The clamping plate 51 is fixedly mounted on the rod body of the clamping drive 52, and the clamping plate 51 is elastic. Specifically, in the embodiment of the present application, the material of the clamping plate 51 is rubber to ensure the friction between the clamping plate 51 and the plastic barrel.

[0051] Reference Figure 1 The upper cover driving assembly 2 is located on one side of the conveyor belt 5, and the upper cover driving assembly 2 includes a vertical frame 21, a vertical slider 22, a vertical screw 23 and a vertical driving member 24. The vertical frame 21 is fixedly installed on the top of the frame, and the vertical slider 22 is slidably matched with the vertical frame 21 through the first slide rail in the vertical direction. The vertical screw 23 is rotatably matched with the vertical frame 21, and the vertical screw 23 is arranged in the vertical direction, and the vertical screw 23 is threadedly penetrated in the vertical slider 22, so that the vertical slider 22 can be driven to move in the vertical direction by the rotation of the vertical screw 23;

[0052] In the embodiment of the present application, the type of the vertical driving member 24 is a motor. The vertical driving member 24 is fixedly mounted on the top of the vertical frame 21, and the vertical driving member 24 is located on the side of the vertical frame 21 away from the vertical slider 22. The output shaft of the vertical driving member 24 is arranged in a vertically upward direction, and the vertical driving member 24 drives the vertical screw 23 to rotate through a synchronous wheel set and a synchronous belt 241, so as to reduce the occurrence of the situation where the vertical driving member 24 affects the movement of the vertical slider 22.

[0053] Reference Figure 1 The transfer drive assembly 4 includes a horizontal bottom plate 41, a horizontal slider 42, a horizontal screw 43 and a horizontal drive member 44. The horizontal bottom plate 41 is fixedly mounted on the vertical slider 22, and the horizontal slider 42 is slidably matched with the horizontal bottom plate 41 in the horizontal direction through the second slide rail. The horizontal screw 43 is rotatably matched with the horizontal bottom plate 41, and the horizontal screw 43 is arranged in the horizontal direction, and the horizontal screw 43 is threadedly penetrated in the horizontal slider 42, so that the horizontal slider 42 is driven to move in the horizontal direction by the rotation of the horizontal screw 43;

[0054] In the embodiment of the present application, the type of the horizontal driving member 44 is a motor. The horizontal driving member 44 is fixedly installed on the side of the horizontal bottom plate 41 away from the vertical slider 22, and the output shaft of the horizontal driving member 44 is coaxially fixedly connected to the horizontal screw rod 43 through a first coupling, so that the horizontal driving member 44 drives the horizontal screw rod 43 to rotate.

[0055] Reference Figure 1A guide slide bar 6 is provided on one side of the conveyor belt 5 away from the vertical frame 21. The guide slide bar 6 is fixedly mounted on the frame and arranged in the vertical direction. The guide slide bar 6 is slidably matched with a guide slider 61. One end of the horizontal driving member 44 provided on the horizontal bottom plate 41 is fixedly mounted on the guide slider 61, so that the horizontal bottom plate 41 can stably move in the vertical direction.

[0056] Reference Figure 1 and Figure 2 The self-adjusting assembly 1 includes an adjusting sleeve 11, an adjusting slider 12, an adjusting connecting rod 13 and an adjusting elastic member 14. A rotating driving member 15 is provided on the top of the adjusting sleeve 11, and in the embodiment of the present application, the rotating driving member 15 is a motor. The rotating driving member 15 is fixedly mounted on the horizontal slider 42, and the output shaft of the rotating driving member 15 is arranged in a vertical downward direction, and the adjusting sleeve 11 is coaxially mounted on the output shaft of the rotating driving member 15 through a second coupling, so that the adjusting sleeve 11 is driven to rotate by the rotating driving member 15.

[0057] Reference Figure 2 and Figure 3 , an adjusting chamber 111 is provided inside the adjusting sleeve 11, and the adjusting chamber 111 is coaxially arranged with the adjusting sleeve 11. The adjusting slider 12 is located in the adjusting chamber 111, and the adjusting slider 12 slides and fits in the adjusting chamber 111 in the vertical direction, and a gap is provided between the adjusting slider 12 and the inner wall of the adjusting chamber 111, so that the adjusting slider 12 can swing in the adjusting chamber 111; specifically, two rotating grooves 112 are also provided on the inner wall of the adjusting chamber 111, and the two rotating grooves 112 extend in the vertical direction. The adjusting slider 12 is integrally connected with two rotating protrusions 121, and the two rotating protrusions 121 slide and fit in each rotating groove 112 respectively, and a gap is also provided between the rotating protrusion 121 and the inner wall of the rotating groove 112, so as to ensure that the adjusting slider 12 can swing under the premise of ensuring that the adjusting sleeve 11 drives the adjusting slider 12 to rotate together.

[0058] Reference Figure 2 The adjusting elastic member 14 is located in the adjusting chamber 111, and the adjusting elastic member 14 is located at the top of the adjusting slider 12. In the embodiment of the present application, the adjusting elastic member 14 is a spring. The adjusting elastic member 14 is arranged in the vertical direction, the top of the adjusting elastic member 14 is fixedly mounted on the inner wall of the adjusting chamber 111, and the bottom of the adjusting elastic member 14 is fixedly mounted on the top of the adjusting slider 12, so that the adjusting slider 12 can be reset after swinging.

[0059] Reference Figure 2 and Figure 4, a positioning cone hole 113 is provided at the bottom of the adjusting sleeve 11, the positioning cone hole 113 is coaxially arranged with the adjusting sleeve 11, and the top of the positioning cone hole 113 is connected to the adjusting chamber 111, and the inner diameter of the top of the positioning cone hole 113 is greater than the inner diameter of the bottom. Specifically, in the embodiment of the present application, the positioning cone hole 113 is arranged in a truncated cone shape, and the end of the positioning cone hole 113 with a larger cross-sectional area is facing the adjusting cone hole, and the end of the positioning cone hole 113 with a smaller cross-sectional area passes through the adjusting sleeve 11;

[0060] The adjusting link 13 is located at the bottom of the adjusting slider 12, and the cross section of the adjusting link 13 is set in a regular hexagon, and the cross-sectional area of ​​the adjusting link 13 is smaller than the cross-sectional area of ​​the adjusting slider 12. The adjusting link 13 is set in the vertical direction, and the adjusting link 13 is coaxially arranged with the adjusting sleeve 11. The top of the adjusting link 13 is fixedly installed on the bottom of the adjusting slider 12, the bottom of the adjusting link 13 is penetrated in the positioning cone hole 113, and the bottom of the adjusting link 13 is fixedly installed with an upper cover rubber pad 131, so as to drive the barrel cover to rotate through the friction between the upper cover rubber pad 131 and the barrel cover.

[0061] Reference Figure 2 and Figure 4 The adjusting link 13 is coaxially sleeved with a sliding sleeve 16, and the inner wall of the sliding sleeve 16 is closely matched with the outer peripheral surface of the adjusting link 13, that is, the inner wall of the sliding sleeve 16 is also arranged in a regular hexagon. The sliding sleeve 16 slides and fits with the adjusting link 13 in the vertical direction, and a supporting protrusion 132 is integrally provided at the bottom of the adjusting link 13, so that the sliding sleeve 16 is not easy to slide off and fall off from the adjusting link 13.

[0062] Reference Figure 2 The sliding sleeve 16 is fixed with a positioning cone block 161, and the top diameter of the positioning cone block 161 is larger than the bottom diameter. Specifically, in the embodiment of the present application, the positioning cone block 161 is arranged in a truncated cone shape, and the end with a larger cross-sectional area of ​​the positioning cone hole 113 is arranged toward the adjustment chamber 111, so as to ensure the stability of the positioning cone block 161 when it is tightly fitted against the inner wall of the positioning cone hole 113. In addition, a buffer rubber pad 162 is fixedly installed on the top of the sliding sleeve 16, so that when relative sliding occurs between the sliding sleeve 16 and the adjustment connecting rod 13, it is not easy for the sliding sleeve 16 to directly collide with the adjustment slider 12.

[0063] Reference Figure 2The outer circumferential surface of the sliding sleeve 16 is fixedly provided with a suction cup mounting seat 7, a negative pressure airway 701 is provided inside the suction cup mounting seat 7, and a negative pressure connection port 71 is fixedly installed on the suction cup mounting seat 7, and the negative pressure connection port 71 is connected to the negative pressure airway 701, so as to facilitate the connection of an external negative pressure generating device through the negative pressure connection port 71, so as to generate negative pressure in the negative pressure airway 701. The suction cup mounting seat 7 is fixedly provided with a plurality of negative pressure suction cups 72, and the plurality of negative pressure suction cups 72 are all connected to the negative pressure airway 701, so as to facilitate the suction and fixation of the barrel cover to the adjusting connecting rod 13 through the negative pressure suction cups 72. In addition, the distance between the bottom of the plurality of negative pressure suction cups 72 and the upper cover rubber pad 131 is less than or equal to the distance between the bottom of the adjusting slider 12 and the sliding sleeve 16, so as to ensure that the plurality of negative pressure suction cups 72 contact the barrel cover before the upper cover rubber pad 131.

[0064] Reference Figure 2 and Figure 5 , two connecting elastic members 17 are fixedly installed at the bottom of the sliding sleeve 16, and in the embodiment of the present application, the two connecting elastic members 17 are both elastic steel sheets, and the two connecting elastic members 17 are respectively located on both sides of the sliding sleeve. A barrel cover positioning plate 18 is fixedly installed at one end of the connecting elastic member 17 away from the sliding sleeve 16, and the inner circumference of the barrel cover positioning plate 18 is arranged corresponding to the outer circumference of the barrel cover to ensure the stability of the connection between the barrel cover positioning plate 18 and the barrel cover. In addition, the bottom of the barrel cover positioning plate 18 is chamfered to facilitate the barrel cover to open the barrel cover positioning plate 18, so as to be temporarily stuck between the two barrel cover positioning plates 18. Specifically, the two barrel cover positioning plates 18 are arranged opposite to each other, and a positioning cavity 181 is provided between the two barrel cover positioning plates 18, and the positioning cavity 181 is coaxially arranged with the adjustment sleeve 11, so that the barrel cover stuck between the two barrel cover positioning plates 18 is always coaxially arranged with the adjustment sleeve 11.

[0065] Reference Figure 1 and Figure 5 The barrel cover storage rack 3 is arranged near the guide slide bar 6, and the barrel cover storage rack 3 includes a storage bottom plate 31 and a storage limit plate 32. There are two storage limit plates 32, both of which are located on the top of the storage bottom plate 31, and the two storage limit plates 32 are arranged opposite to each other, and a storage groove 301 is arranged between the two storage limit plates 32, so that the barrel cover can be stacked in the storage groove 301 from bottom to top along the vertical direction;

[0066] The bottom of the storage limit plate 32 is fixedly mounted on the storage bottom plate 31, and the top of the storage limit plate 32 is chamfered, and the inner circumference of the storage limit plate 32 is close to the barrel cover, so that the barrel cover is not easy to fall out of the storage tank 301. In addition, when the barrel cover is taken out from the storage tank 301, the two barrel cover positioning plates 18 and the two storage limit plates 32 are distributed in a "cross" shape, and the two barrel cover positioning plates 18 and the two storage limit plates 32 are combined to surround the barrel cover, so that the barrel cover is stably transferred from between the two storage limit plates 32 to between the two barrel cover positioning plates 18.

[0067] The implementation principle of a plastic bucket cover device in the embodiment of the present application is:

[0068] S1. The conveyor belt 5 conveys the plastic barrel to the position of the clamping plate 51, and then the clamping driving member 52 drives the clamping plate 51 to move toward the direction close to the plastic barrel, so that the clamping plate 51 is tightly fitted to the plastic barrel.

[0069] S2. The vertical driving member 24 drives the horizontal bottom plate 41 to move forward in the vertical direction, and the horizontal driving member 44 drives the horizontal slider 42 to move forward in the horizontal direction, thereby moving the adjusting sleeve 11 to the top of the storage cavity.

[0070] S3, the vertical driving member 24 drives the horizontal bottom plate 41 to move toward a position close to the storage cavity, and the bucket cover opens the two bucket cover positioning plates 18 and is clamped between the two bucket cover positioning plates 18 to ensure that the bucket cover is coaxially arranged with the adjustment sleeve 11. Subsequently, the negative pressure suction cup 72 contacts the bucket cover and absorbs the bucket cover through negative pressure, thereby transferring the bucket cover to the adjustment connecting rod 13.

[0071] S4. The vertical driving member 24 drives the horizontal bottom plate 41 to move in the vertical direction in the reverse direction, and the horizontal driving member 44 drives the horizontal sliding block 42 to move in the horizontal direction in the reverse direction, thereby transferring the barrel cover to the top of the plastic barrel.

[0072] S5, the vertical driving member 24 drives the adjusting sleeve 11 and the barrel cover to move toward the direction close to the plastic barrel.

[0073] When the barrel cover is coaxial with the plastic barrel, the vertical driving member 24 drives the barrel cover to fit tightly against the plastic barrel, and then continues to drive the adjusting sleeve 11, the adjusting slider 12, the adjusting connecting rod 13, the adjusting elastic member 14, and the upper cover rubber pad 131 to move toward the position of the barrel cover until the upper cover rubber pad 131 contacts the barrel cover. After the upper cover rubber pad 131 contacts the barrel cover, under the action of the vertical driving member 24, the adjusting sleeve 11 continues to move toward the position of the barrel cover, causing the adjusting elastic member 14 to deform, so that the upper cover rubber pad 131 is coaxially pressed and tightly fitted against the barrel cover.

[0074] When the barrel cover is not coaxial with the plastic barrel, after the barrel cover is tightly fitted on the plastic barrel, the adjusting sleeve 11, the adjusting slider 12, the adjusting connecting rod 13, the adjusting elastic member 14 and the upper cover rubber pad 131 move together toward the position of the barrel cover until the upper cover rubber pad 131 contacts the top of the barrel cover.

[0075] When the adjusting sleeve 11, the adjusting slider 12, the adjusting connecting rod 13, the adjusting elastic member 14 and the upper cover rubber pad 131 move toward the position of the barrel cover together, the positioning cone block 161 moves toward the direction close to the adjusting cavity, so that the width of the gap between the positioning cone block 161 and the positioning cone hole 113 gradually increases.

[0076] After the positioning cone block 161 is separated from the inner wall of the positioning cone hole 113, the adjusting elastic member 14 is deformed with the position and angle of the barrel cover, and the adjusting connecting rod 13 also swings accordingly, until the adjusting connecting rod 13 and the upper cover rubber pad 131 are coaxial with the barrel cover. After the adjusting connecting rod 13 and the upper cover rubber pad 131 are coaxial with the barrel cover, under the action of the vertical driving member 24, the adjusting sleeve 11 continues to move toward the position of the barrel cover, so that the adjusting elastic member 14 is deformed, so that the upper cover rubber pad 131 is coaxially pressed and tightly fitted with the barrel cover.

[0077] S6, the rotary drive member 15 drives the adjusting sleeve 11 to rotate, and the vertical drive member 24 drives the adjusting sleeve 11 to move toward the plastic barrel, so that the curved thread of the barrel cover is matched with the plastic barrel through the friction between the upper cover rubber pad 131 and the barrel cover.

[0078] Specifically, when the barrel cover is not coaxial with the plastic barrel, as the barrel cover rotates, the adjustment connecting rod 13 always coaxially fits tightly against the barrel cover and swings synchronously with the barrel cover, so that the barrel cover can still be fully threadedly fitted to the plastic barrel even when it is not coaxial with the plastic barrel.

[0079] S7, the vertical driving member 24 drives the adjusting sleeve 11 to move in a direction away from the plastic barrel, and the barrel cover is separated from between the two barrel cover positioning plates 18, thereby completing the cover cycle of a single plastic barrel.

[0080] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plastic barrel cover device, characterized in that: It comprises a self-adjusting component (1) and an upper cover driving component (2); The self-adjusting assembly (1) comprises an adjusting sleeve (11), an adjusting slider (12), an adjusting connecting rod (13) and an adjusting elastic member (14); the adjusting sleeve (11) is provided with a rotating driving member (15); the rotating driving member (15) is used to drive the adjusting sleeve (11) to rotate; The adjusting sleeve (11) is provided with an adjusting chamber (111), the adjusting slider (12) is slidably matched in the adjusting chamber (111) along the vertical direction, a gap is provided between the adjusting slider (12) and the inner wall of the adjusting chamber (111), the adjusting connecting rod (13) is installed on the adjusting slider (12), an upper cover rubber pad (131) is installed at the bottom of the adjusting connecting rod (13), and two ends of the adjusting elastic member (14) are respectively installed on the adjusting slider (12) and the inner wall of the adjusting sleeve (11); The upper cover driving assembly (2) is used to drive the adjusting sleeve (11) to move in a vertical direction.

2. The plastic barrel cover device according to claim 1, characterized in that: The adjusting connecting rod (13) is provided with a connecting elastic member (17), and the connecting elastic member (17) is provided with a barrel cover positioning plate (18).

3. The plastic barrel cover device according to claim 1, characterized in that: It also comprises a barrel cover storage rack (3) and a transfer drive assembly (4), wherein the barrel cover storage rack (3) is used to stack barrel covers, and the transfer drive assembly (4) is used to drive the adjustment connecting rod (13) to move between the barrel cover storage rack (3) and the plastic barrel; The adjusting connecting rod (13) is provided with a negative pressure suction cup (72), and the negative pressure suction cup (72) is used to absorb and fix the barrel cover in the barrel cover storage rack (3) to the adjusting connecting rod (13).

4. The plastic barrel cover device according to claim 3, characterized in that: The regulating chamber (111) is penetrated by a positioning cone hole (113), the top of the positioning cone hole (113) is connected to the regulating chamber (111), the inner diameter of the top of the positioning cone hole (113) is larger than the inner diameter of the bottom, the regulating connecting rod (13) is slidably penetrated through the positioning cone hole (113), and the regulating connecting rod (13) is sleeved with a positioning cone block (161).

5. The plastic barrel cover device according to claim 3, characterized in that: The adjusting connecting rod (13) is slidably matched with a sliding sleeve (16) in the vertical direction, and the negative pressure suction cup (72) is installed on the sliding sleeve (16).

6. The plastic barrel cover device according to claim 5, characterized in that: The sliding sleeve (16) is provided with a buffer rubber pad (162), and the buffer rubber pad (162) is located at the top of the sliding sleeve (16).

7. The plastic barrel cover device according to claim 3, characterized in that: The barrel cover storage rack (3) is provided with a storage slot (301), and the storage slot (301) is used for storing the barrel covers; The transfer drive assembly (4) comprises a horizontal base plate (41), a horizontal slider (42), a horizontal screw rod (43) and a horizontal drive member (44); the horizontal slider (42) slides in a horizontal direction and fits on the horizontal base plate (41); the horizontal screw rod (43) is threadedly inserted into the horizontal slider (42); the horizontal drive member (44) is used to drive the horizontal screw rod (43) to rotate; and the adjustment sleeve (11) is installed on the horizontal slider (42).

8. The plastic barrel cover device according to claim 1, characterized in that: The upper cover driving assembly (2) comprises a vertical frame (21), a vertical slider (22), a vertical screw (23) and a vertical driving member (24); the vertical slider (22) is slidably engaged with the vertical frame (21) along a vertical direction; the vertical screw (23) is threadedly penetrated through the vertical slider (22); the vertical driving member (24) is used to drive the vertical screw (23) to rotate; and the adjusting sleeve (11) is mounted on the vertical slider (22).

9. The plastic barrel cover device according to claim 1, characterized in that: The invention also comprises a conveyor belt (5), wherein the conveyor belt (5) is used to convey the plastic barrel, and the conveyor belt (5) is provided with a plastic barrel positioning assembly, wherein the plastic barrel positioning assembly comprises a clamping plate (51) and a clamping driving member (52), and the clamping driving member (52) is used to drive the clamping plate (51) to move in a direction close to or away from the plastic barrel.

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