Filling barrel feeding system for a filling process

Abstract

The application discloses a filling barrel loading system of a filling process, which comprises a barrel stack and a filling barrel conveying unit, and the barrel stack is formed by stacking a plurality of filling barrels coaxially and vertically; a horizontal guide rail is arranged above the barrel stack, a slider capable of horizontally moving along the guide rail is arranged on the horizontal guide rail, a lifter is fixed to the lower side of the slider, a loading clamp jaw is fixedly connected to the lower end of the lifting part of the lifter, and the horizontal displacement of the slider along the horizontal guide rail can make the loading clamp jaw horizontally move to the top of the filling barrel conveying unit and the barrel stack; the loading clamp jaw of the application can realize the following functions: firstly, the close sleeve joint relationship between the two uppermost filling barrels of the barrel stack is released before the uppermost filling barrel of the barrel stack is clamped, and then the uppermost filling barrel of the barrel stack is clamped alone, thereby avoiding the problem that the lower adjacent filling barrel is taken together when the uppermost filling barrel of the barrel stack is clamped.

Description

Technical Field

[0001] This invention belongs to the field of filling and feeding. Background Technology

[0002] In the filling process of liquid products such as paints and coatings, in order to make reasonable use of space, a large number of filling barrels waiting to be filled need to be stacked in a tower-like manner into several barrel stacks. During the stacking and stacking process, axial force is generated between any two adjacent filling barrels. Thus, any two adjacent filling barrels on the barrel stack may be tightly fitted together. When the robot arm picks up the top filling barrel on the barrel stack, it may also lift up the next adjacent filling barrel. In order to avoid the above problem, the tight fit between the top two filling barrels on the barrel stack should be released first, and then the top filling barrel on the barrel stack should be picked up separately. This solution is a device designed for the above process objective. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a filling barrel feeding system for the filling process, which can release the tight connection between the top two filling barrels of the barrel stack before clamping the top filling barrel of the stack.

[0004] Technical solution: To achieve the above objectives, the filling barrel feeding system of the filling process of the present invention includes a barrel stack and a filling barrel conveying unit, wherein the barrel stack is formed by stacking several filling barrels coaxially.

[0005] There is a horizontal guide rail above the stack of barrels, and a slider that can move horizontally along the guide rail is installed on the horizontal guide rail. A lifting device is fixed to the lower side of the slider, and a feeding gripper is fixedly connected to the lower end of the lifting part of the lifting device. The displacement of the slider along the horizontal guide rail can make the feeding gripper move horizontally to the top of the filling barrel conveying unit and the stack of barrels.

[0006] Furthermore, in any two adjacent filling barrels in the stack, the lower part of the upper filling barrel is coaxially fitted into the opening of the lower filling barrel; the upper end of each filling barrel is integrally provided with a barrel outer edge.

[0007] Furthermore, the first and second filled barrels from top to bottom in the barrel stack are designated as filling barrel a and filling barrel b, respectively.

[0008] The feeding gripper can first release the tight fit between filling barrel A and filling barrel B, and then pick up filling barrel A separately.

[0009] Furthermore, the feeding gripper includes a coaxial upper hollow ring and a lower hollow ring, which are fixedly connected by several hollow connecting arms; the lower end of the lifting part of the lifting device is fixedly connected to the upper hollow ring; and a vertical plunger cylinder is integrally connected to the inner wall of the upper hollow ring.

[0010] The upper hollow ring contains a transition ring cavity. The lower end of the plunger cavity in the vertical plunger cylinder is connected to the transition ring cavity. A limiting inner edge is provided in the middle of the inner wall of the plunger cavity. A piston is limited on the upper side of the limiting inner edge. An upper inner edge is provided at the upper end of the inner wall of the plunger cavity.

[0011] Furthermore, an upper plate is coaxially arranged below the upper hollow ring, and a lower plate is coaxially arranged below the upper plate. A vertical telescopic device is fixed on the upper plate, and the end of the telescopic rod of the telescopic device is fixedly connected to the lower plate, so that the telescopic device can drive the upper plate and the lower plate to move closer to each other or further away from each other.

[0012] The outer contours of the upper and lower plates are sealed together by an airtight a-ring cloth strip, thus forming a pressure chamber between the upper and lower plates. The disc-shaped structure composed of the upper plate, lower plate, and a-ring cloth strip can be inserted coaxially into the mouth of the filling barrel. The mutual approach of the upper and lower plates increases the pressure in the pressure chamber, causing the originally loose a-ring cloth strip to expand outward under the pressure of the pressure chamber, thereby tightening the inner wall of the barrel mouth.

[0013] Furthermore, the lower hollow ring contains pressure chamber b, which is connected to the transition ring cavity through a channel in the hollow connecting arm; the piston and the upper plate are fixedly connected by a connecting bend, and the connecting bend connects pressure chamber a and the plunger cavity to each other.

[0014] Furthermore, the outer edges of filling barrels a and b are respectively referred to as the outer edge of a and the outer edge of b. The lower hollow ring can be movably fitted around the outer edge of the barrel. The inner wall of the lower hollow ring is a ring of b-shaped fabric. Due to the connection, the increased pressure in pressure chamber a will be transmitted to pressure chamber b, causing the originally loose ring of b-shaped fabric to expand towards the axis under the pressure in pressure chamber b, thus tightening inward around the outer edge of the barrel. Due to the connection, the increased pressure in pressure chamber a will also be transmitted to the plunger cavity, thus causing the increased pressure in the plunger cavity to generate an upward thrust F on the piston.

[0015] When the hollow ring is moved around the outer edge of b, the disc-shaped structure composed of the upper plate, lower plate and a ring-shaped cloth strip can extend coaxially into the mouth of the a filling barrel.

[0016] Furthermore, a spring is provided to elastically press against the piston at the upper inner edge.

[0017] Beneficial effects: The feeding gripper of the present invention can first release the tight connection between the two top filling barrels of the barrel stack before gripping the top filling barrel of the stack, and then grip the top filling barrel of the stack alone, thus avoiding the problem of picking up the adjacent filling barrel below when gripping the top filling barrel of the stack. Attached Figure Description

[0018] Appendix Figure 1A schematic diagram of the overall structure of the paint filling process box;

[0019] Appendix Figure 2 This is a schematic diagram of the state at the end of "Step Three";

[0020] Appendix Figure 3 For the appendix Figure 2 A sectional view;

[0021] Appendix Figure 4 For the appendix Figure 3 An enlarged view of mark 21;

[0022] Appendix Figure 5 This is a schematic diagram of the feeding gripper structure;

[0023] Appendix Figure 6 For the appendix Figure 5 A sectional view. Detailed Implementation

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] As attached Figures 1 to 6 The filling barrel feeding system of the filling process shown is as follows: Figure 1 The system includes a horizontal filling barrel conveying unit 28, with a filling unit 32 positioned above it. Several filling barrels 12 on the filling barrel conveying unit 28 can be conveyed sequentially along the conveying direction to the area directly below the filling unit 32. The outlet end 33 of the filling unit 32 corresponds to the filling barrel 12 directly below it. When the filling barrel 12 reaches the area directly below the filling unit 32, the outlet end 33 of the filling unit 32 can fill the filling barrel 12 directly below it with paint.

[0026] It also includes several barrel stacks 34 distributed along the conveying direction of the filling barrel conveying unit 28. The barrel stacks 34 are formed by several filling barrels 12 stacked coaxially. In any two adjacent filling barrels 12 in the barrel stack 34, the lower part of the upper filling barrel 12 is coaxially fitted into the barrel opening 012 of the lower filling barrel 12. The filling barrel 12 is a conical barrel body that is narrower at the bottom and wider at the top, which can save more space when stacking. The upper end of each filling barrel 12 is integrally provided with a barrel outer edge 10. A horizontal guide rail 30 is provided above the several barrel stacks 34 and the filling barrel conveying unit 28. A slider 31 that can move horizontally along the guide rail direction is provided on the horizontal guide rail 30. A lifting device 29 is fixed on the lower side of the slider 31. The lower end of the lifting part 3 of the lifting device 29 is fixedly connected to the feeding claw 27. The displacement of the slider 31 along the horizontal guide rail 30 can make the feeding claw 27 move horizontally to directly above the filling barrel conveying unit 28 and directly above any barrel stack 34.

[0027] like Figure 4The first and second filling barrels 12 from top to bottom in the stack of barrels 34 are designated as filling barrel a 12.1 and filling barrel b 12.2, respectively; the outer edges 10 on filling barrel a 12.1 and filling barrel b 12.2 are designated as outer edge a 10.1 and outer edge b 10.2, respectively; if the lower part of filling barrel a 12.1 is tightly fitted into the opening 012 of filling barrel b 12.2, the feeding claw 27 can first release the tight fit between filling barrel a 12.1 and filling barrel b 12.2, and then pick up filling barrel a 12.1 separately.

[0028] like Figure 4 and 5 The feeding gripper 27 includes a coaxial upper hollow ring 4 and a lower hollow ring 14. The upper hollow ring 4 and the lower hollow ring 14 are fixedly connected by a number of hollow connecting arms 11 arranged in a circular array. The lower end of the lifting part 3 of the lifting device 29 is fixedly connected to the upper hollow ring 4. The inner wall of the upper hollow ring 4 is integrally connected to a vertical plunger cylinder 8. The upper hollow ring 4 contains a transition ring cavity 2. The lower end of the plunger cavity 18 in the vertical plunger cylinder 8 is connected to the transition ring cavity 2. A limiting inner edge 26 is provided in the middle of the inner wall of the plunger cavity 18. A piston 9 is limited on the upper side of the limiting inner edge 26. An upper inner edge 6 is provided at the upper end of the inner wall of the plunger cavity 18. A spring 7 is elastically pressed between the upper inner edge and the piston 9. The spring 7 generates a downward preload on the piston 9 to resist the thrust F mentioned below and prevent the piston 9 from moving upward at the end of "Step 3".

[0029] An upper plate 1 is coaxially arranged below the upper hollow ring 4, and a lower plate 22 is coaxially arranged on the lower side of the upper plate 1. A vertical telescopic device 20 is fixed on the upper plate 1, and the end of the telescopic rod 21 of the telescopic device 20 is fixedly connected to the lower plate 22, so that the telescopic device 20 can drive the upper plate 1 and the lower plate 22 to move closer to each other or further away from each other.

[0030] The outer contour of the upper plate 1 and the outer contour of the lower plate 22 are sealed and connected by an airtight a-ring cloth strip 17, thereby forming a pressure chamber 19 between the upper plate 1 and the lower plate 22. The disc-shaped structure composed of the upper plate 1, the lower plate 22 and the a-ring cloth strip 17 can be coaxially inserted into the mouth 012 of the filling barrel 12. The mutual approach movement of the upper plate 1 and the lower plate 22 increases the pressure in the pressure chamber 19, thereby causing the originally loose a-ring cloth strip 17 to expand outward under the pressure of the pressure chamber 19, thus tightening the inner wall of the mouth 012.

[0031] The lower hollow ring 14 contains pressure chamber 47 (b), which is connected to the transition ring cavity 2 via a channel in the hollow connecting arm 11. The piston 9 is fixedly connected to the upper plate 1 via a connecting bend 23, which connects pressure chamber 19 (a) and plunger cavity 18. The two ends of the connecting bend 23 are a vertical section 23.1 (a) and a vertical section 23.2 (b), respectively. The lower end of vertical section 23.1 (a) is fixedly connected to the axis of the upper plate 1, and the lower end of vertical section 23.2 (b) is fixedly connected to the piston 9. A guide wall 24 is fixedly connected to the inner side of the upper hollow ring 4, and a guide hole 43 is provided on the guide wall 24 for vertical section 23.1 (a) to pass through.

[0032] The lower hollow ring 14 can be movably fitted outside the outer edge 10 of the barrel. The inner wall of the lower hollow ring 14 is a ring-shaped cloth strip 15. Due to the connection, the increased pressure in the pressure chamber 19 will be transmitted to the pressure chamber 47, causing the originally loose ring-shaped cloth strip 15 to expand towards the axis under the pressure in the pressure chamber 47, thus tightening inward to hug the outer edge 10 of the barrel. Due to the connection, the increased pressure in the pressure chamber 19 will also be transmitted to the plunger cavity 18, thus causing the increased pressure in the plunger cavity 18 to form an upward thrust F on the piston 9. When the lower hollow ring 14 can be movably fitted outside the outer edge 10.2, the disc-shaped structure composed of the upper plate 1, the lower plate 22 and the ring-shaped cloth strip 17 can extend coaxially into the opening 012 of the filling barrel 12.1.

[0033] Working methods and working principles:

[0034] Step 1: By controlling the displacement of the slider 31 along the horizontal guide rail 30, the loading gripper 27 is horizontally moved to directly above the corresponding stack of barrels 34. At this time, the first and second filling barrels 12 of the stack of barrels 34 corresponding to the loading gripper 27 from top to bottom are respectively labeled as filling barrel a 12.1 and filling barrel b 12.2; the outer edges 10 of the barrels on filling barrel a 12.1 and filling barrel b 12.2 are respectively labeled as outer edge a 10.1 and outer edge b 10.2.

[0035] The lower part of filling container a 12.1 is coaxially fitted into the opening 012 of filling container b 12.2. During the stacking and stacking of containers 34, due to the mutual axial force, filling container a 12.1 and filling container b 12.2 are likely to be tightly fitted. Clamping filling container a 12.1 alone may also lift filling container b 12.2. To avoid the above problem, the tight fit between filling container a 12.1 and filling container b 12.2 should be released first before clamping filling container a 12.1 alone. The specific solution is detailed in the following steps:

[0036] Step 2: The lifting device 29 controls the lowering of the feeding gripper 27 until the lower hollow ring 14 on the feeding gripper 27 descends to the outside of the movable sleeve 10.2 of b. The lifting device 29 is then paused. At this time, the disc-shaped structure formed by the upper plate 1, the lower plate 22 and the a ring cloth belt 17 just extends coaxially into the barrel opening 012 of the a filling barrel 12.1.

[0037] Step 3: The telescopic device 20 drives the upper plate 1 and the lower plate 22 to move closer to each other, increasing the pressure in the pressure chamber 19. This causes the previously loose ring-shaped fabric belt 17 to expand outward under the pressure of the pressure chamber 19, thus tightening the inner wall of the barrel opening 012. At the same time, due to the connection, the increased pressure in the pressure chamber 19 is transmitted to the pressure chamber 47 in the lower hollow ring 14, causing the previously loose ring-shaped fabric belt 15 to expand towards the axis under the pressure of the pressure chamber 47, thus tightening the outer edge 10.2 inward. Consequently, the filling barrel 12.2 is unable to move upward in the next step because it is tightened by the ring-shaped fabric belt 15.

[0038] At the same time, due to the connection, the increased pressure in pressure chamber 19 will also be transmitted to piston chamber 18, thus causing the increased pressure in piston chamber 18 to exert an upward thrust F on piston 9; such as Figure 3 As shown.

[0039] Step four: Control the telescopic device 20 to drive the upper plate 1 and lower plate 22 to continue to move closer to each other, so that the pressure in the plunger cavity 18 increases further, and the thrust F increases further, until the thrust F increases to just enough to slightly push the integrated structure consisting of the upper plate 1, lower plate 22, a-ring cloth belt 17, connecting bend 23 and piston 9 upwards. Then, the a-filling barrel 12.1, which is held outwards by the a-ring cloth belt 17, is also slightly pushed upwards. This causes a slight relative displacement between the a-filling barrel 12.1 and the fixed b-filling barrel 12.2, thereby releasing the tight connection between the a-filling barrel 12.1 and the b-filling barrel 12.2.

[0040] Step 5: Control the telescopic device 20 to move the upper plate 1 and the lower plate 22 away from each other, so that the air pressure in pressure chamber a 19 and pressure chamber b 47 drops to the initial state, and the a ring belt 17 and the b ring belt 15 both return to the relaxed state. The a ring belt 17 and the b ring belt 15 release the grip on the a filling barrel 12.1 and the b filling barrel 12.2 respectively.

[0041] Step 6: The lifting device 29 controls the entire loading gripper 27 to rise until the lower hollow ring 14 on the loading gripper 27 rises to the outside of the movable sleeve 10.1 of a, then the lifting device 29 is paused.

[0042] Step 7: The telescopic device 20 drives the upper plate 1 and the lower plate 22 to move closer to each other, increasing the pressure in pressure chamber 19. Due to the connection, the increased pressure in pressure chamber 19 is transmitted to pressure chamber 47 in the lower hollow ring 14, causing the originally loose annular cloth belt 15 to expand towards the axis under the pressure in pressure chamber 47, thereby hugging the outer edge 10.1 of a inward, and thus making the filling barrel 12.1 of a tightly hugged by the annular cloth belt 15 of b.

[0043] Step 8: The lifting device 29 controls the feeding gripper 27 to rise as a whole, and the a filling barrel 12.1, which is held tightly by the b annular cloth belt 15, rises separately. At this point, the feeding gripper 27 has achieved the ability to grip the a filling barrel 12.1 independently. Since the tight connection between the a filling barrel 12.1 and the b filling barrel 12.2 has been released in "Step 4", the b filling barrel 12.2 will not rise with the a filling barrel 12.1.

[0044] Step nine: By controlling the displacement of slider 31 along horizontal guide rail 30, the loading gripper 27 is horizontally moved to directly above the filling barrel conveying unit 28; then the lifting device 29 drives the loading gripper 27 to descend until the bottom of filling barrel 12.1 held by the loading gripper 27 reaches the conveying surface of the filling barrel conveying unit 28. Then the telescopic device 20 drives the upper plate 1 and lower plate 22 to move away from each other, so that the air pressure in pressure chamber 19 and pressure chamber 47 drops to the initial state, and both the a-ring belt 17 and the b-ring belt 15 return to the relaxed state. The b-ring belt 15 releases its grip on filling barrel 12.1. At the same time, the lifting device 29 controls the loading gripper 27 to rise as a whole, thereby releasing filling barrel 12.1 onto the filling barrel conveying unit 28, thus completing the loading process of filling barrel 12.1.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A filling barrel feeding system for a filling process, characterized in that: It includes a stack of barrels (34) and a barrel conveying unit (28), wherein the stack of barrels (34) is formed by stacking several barrels (12) coaxially. A horizontal guide rail (30) is provided above the stack of barrels (34). A slider (31) that can move horizontally along the guide rail (30) is provided on the horizontal guide rail (30). A lifting device (29) is fixed on the lower side of the slider (31). A feeding gripper (27) is fixedly connected to the lower end of the lifting part (3) of the lifting device (29). The displacement of the slider (31) along the horizontal guide rail (30) can make the feeding gripper (27) move horizontally to the top of the filling barrel conveying unit (28) and the stack of barrels (34). In any two adjacent filling barrels (12) in the stack of barrels (34), the lower part of the upper filling barrel (12) is coaxially fitted into the barrel opening (012) of the lower filling barrel (12); the upper end of each filling barrel (12) is integrally provided with a barrel outer edge (10). The first and second filling barrels (12) in the stack of barrels (34) from top to bottom are respectively labeled as filling barrel a (12.1) and filling barrel b (12.2). The feeding gripper (27) can first release the tight fit between filling barrel a (12.1) and filling barrel b (12.2), and then clamp filling barrel a (12.1) separately. The feeding gripper (27) includes a coaxial upper hollow ring (4) and a lower hollow ring (14), which are fixedly connected by several hollow connecting arms (11); the lower end of the lifting part (3) of the lifting device (29) is fixedly connected to the upper hollow ring (4); the inner wall of the upper hollow ring (4) is integrally connected with a vertical plunger cylinder (8); The upper hollow ring (4) contains a transition ring cavity (2), and the lower end of the plunger cavity (18) in the vertical plunger cylinder (8) is connected to the transition ring cavity (2). A limiting inner edge (26) is provided in the middle of the inner wall of the plunger cavity (18), and a piston (9) is provided on the upper side of the limiting inner edge (26). An upper inner edge (6) is provided at the upper end of the inner wall of the plunger cavity (18). An upper plate (1) is coaxially arranged below the upper hollow ring (4), and a lower plate (22) is coaxially arranged on the lower side of the upper plate (1). A vertical telescopic device (20) is fixed on the upper plate (1), and the end of the telescopic rod (21) of the telescopic device (20) is fixedly connected to the lower plate (22), so that the telescopic device (20) can drive the upper plate (1) and the lower plate (22) to move closer to each other or further away from each other; The outer contour of the upper plate (1) and the outer contour of the lower plate (22) are sealed together by an airtight a-ring cloth strip (17), thereby forming a pressure chamber (19) between the upper plate (1) and the lower plate (22). The disc-shaped structure composed of the upper plate (1), the lower plate (22) and the a-ring cloth strip (17) can be coaxially inserted into the mouth (012) of the filling barrel (12.1). The mutual approach movement of the upper plate (1) and the lower plate (22) increases the pressure in the pressure chamber (19), thereby causing the originally loose a-ring cloth strip (17) to expand outward under the pressure of the pressure chamber (19), thereby hugging the inner wall of the mouth (012) outward.

2. The filling barrel feeding system for the filling process according to claim 1, characterized in that: The lower hollow ring (14) contains a pressure chamber (47), which is connected to the transition ring cavity (2) through a channel in the hollow connecting arm (11). The piston (9) is fixedly connected to the upper plate (1) through a connecting bend (23), and the connecting bend (23) connects the pressure chamber (19) and the plunger cavity (18) to each other.

3. The filling barrel feeding system for the filling process according to claim 2, characterized in that: The outer edges (10) of the filling barrels a (12.1) and b (12.2) are respectively referred to as outer edge a (10.1) and outer edge b (10.2); the lower hollow ring (14) can be movably fitted outside the outer edge b (10.2). The inner wall of the lower hollow ring (14) is a ring of b-shaped cloth strip (15). Due to the connection relationship, the increased pressure in the pressure chamber a (19) will be transmitted to the pressure chamber b (47), causing the originally loose ring of b-shaped cloth strip (15) to expand towards the axis side under the pressure in the pressure chamber b (47), thereby hugging the outer edge b (10.2) inward; due to the connection relationship, the increased pressure in the pressure chamber a (19) will also be transmitted to the plunger cavity (18), thereby causing the increased pressure in the plunger cavity (18) to form an upward thrust F on the piston (9); When the hollow ring (14) is movably fitted outside the outer edge (10.2) of b, the disc-shaped structure composed of the upper plate (1), the lower plate (22) and the a ring-shaped cloth strip (17) can extend coaxially into the mouth (012) of the a filling barrel (12.1).

4. The filling barrel feeding system for the filling process according to claim 3, characterized in that: A spring (7) is provided to elastically press against the piston (9) at the upper inner edge.

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