A special-shaped barrel positioning mechanism for filling lines

Abstract

The invention discloses a special-shaped barrel positioning mechanism for a filling assembly line, comprising a detection unit and a blocking unit. The detection unit comprises a positioning lever that can rotate around a horizontal axis, a torsion spring for inhibiting rotation is arranged between the positioning lever and the rotation axis, and when the torsion spring is in a non-power-storing state, the angle between the positioning lever and a vertical plane is α; the blocking unit comprises a baffle that rotates around the horizontal axis, a torsion spring for inhibiting rotation is arranged between the baffle and the rotation axis, and when the torsion spring is in a non-power-storing state, the angle between the baffle and the vertical plane is β, 0°<β≤α, the baffle and the rotation axis of the positioning lever are parallel or coincident, and a latch is slidably arranged on the top end of the baffle. The special-shaped barrel positioning mechanism for a filling assembly line ensures the repeatability of the stop position of the special-shaped barrel after passing through the mechanism, and barrels with wrong barrel feeding directions cannot pass through the mechanism, so that the barrels that pass through have consistent barrel feeding directions, and the continuity of automatic filling is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of filling equipment, in particular to a special-shaped barrel positioning mechanism for a filling production line. Background Art

[0002] The liquid filling machine industry involves a wide variety of filling products, such as insecticides, fungicides, herbicides, foliar fertilizers, and flushing fertilizers in pesticides; disinfectants, oral liquids, antifreeze, and glass water; liquor, mineral water, tea beverages, etc.

[0003] With the development of industry and the improvement of residents' living standards, filling machines have been widely used in many fields. However, in recent years, the decline in the proportion of the labor force and the continuous increase in workers' wages have indirectly increased production costs, which has affected the economic benefits of enterprises to a certain extent. Therefore, it is necessary to adopt advanced production equipment to improve production efficiency and reduce the number of employees to reduce production costs. In order to solve the problems of slow operation speed and low efficiency of filling stations, it is necessary to optimize the design of the original filling line, improve work efficiency, and realize intelligent filling. At present, the filling line has a high degree of automation, strong functionality, and high precision control.

[0004] However, there are still some defects in some key links that directly affect the efficiency, quality and on-site management of filling, such as the positioning of special-shaped barrels.

[0005] Inaccurate positioning: When the barrel is put into the container, the repeatability of the position where the barrel stays cannot be guaranteed, and the accuracy of the position cannot be guaranteed, which directly affects the filling effect, causes liquid to be spilled, affects the appearance of the workshop and increases production costs.

[0006] Filling is not continuous: the positioning is inaccurate, and manual intervention is required to adjust the position of the filling barrel, which causes the filling process to be interrupted and affects the continuity of automatic filling. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the existing defects and provide a special-shaped barrel positioning mechanism for a filling line, so that after the special-shaped barrel passes through the mechanism, the repeatability of the stopping position is guaranteed, and barrels with wrong barrel feeding directions cannot pass through the mechanism, thereby ensuring that the barrels passing through have consistent barrel feeding directions and ensuring the continuity of automatic filling, which can effectively solve the problems in the background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: A special-shaped barrel positioning mechanism for a filling assembly line, comprising a detection unit and a blocking unit, wherein the detection unit comprises a positioning lever that can rotate around a horizontal axis, and a torsion spring that inhibits rotation is provided between the positioning lever and the rotation axis, and when the torsion spring is in a non-forced state, the angle between the positioning lever and the vertical plane is α;

[0009] The blocking unit includes a baffle plate that rotates around a horizontal axis, a torsion spring that inhibits rotation is provided between the baffle plate and the rotation axis, and when the torsion spring is in a non-power storage state, the angle between the baffle plate and the vertical plane is β, 0°<β≤α, the rotation axis of the baffle plate and the positioning lever are parallel or coincident, a latch is slidably provided at the top end of the baffle plate, the sliding direction of the latch is consistent with the rotation axis of the baffle plate, and a spring is provided between the latch and the baffle plate along the relative motion direction;

[0010] When the positioning lever rotates in the direction of decreasing α, the top end of the positioning lever squeezes the bayonet pin, causing the bayonet pin to move relative to the baffle. When the spring is compressed to the maximum deformation, the positioning lever drives the bayonet pin and the baffle to rotate synchronously.

[0011] As a preferred technical solution of the present invention, a mechanism support member for squeezing the bayonet is provided at the top end of the positioning lever, and the contact surfaces of the mechanism support member and the bayonet are both arc-shaped surfaces or wedge-shaped surfaces;

[0012] Through the structural design of the arc surface or the wedge-shaped surface, when the mechanism support squeezes the pin, a certain torque is required for the rotation of the baffle plate because the baffle plate is restricted by the torsion spring. At this time, the pin will first retreat relative to the baffle plate. When the spring is compressed to a certain amount, the torque of the pin acting on the baffle plate will reach the range of driving the baffle plate to rotate. At this time, the baffle plate rotates together with the positioning lever. At this time, the angle β is reduced, and the lowest position of the baffle plate is lowered, blocking the passage of the special-shaped barrel below.

[0013] As a preferred technical solution of the present invention, the positioning lever is a curved lever with the lower end bent forward, and when the torsion spring is in a non-force storage state, the lower end of the positioning lever can contact the workpiece before the baffle;

[0014] The structural design that allows the positioning lever to contact the special-shaped barrel before the baffle plate prevents the baffle plate from having no space to continue moving downward when the detection unit detects that the barrel is not in the correct position, causing the special-shaped barrel below to be squeezed, deformed or damaged.

[0015] As a preferred technical solution of the present invention, it also includes a door-shaped positioning support plate, a rotating shaft is horizontally arranged inside the positioning support plate, and the middle position of the baffle and the positioning lever are rotatably mounted on the rotating shaft through a bearing pair.

[0016] As a preferred technical solution of the present invention, the positioning support plate is an M-shaped structure, and two groups of detection units and blocking units are symmetrically arranged in the positioning support plate, and the detection unit is located in the middle position of the positioning support plate relative to the blocking unit;

[0017] Through two sets of symmetrically arranged detection units and blocking units, positioning detection is performed on both sides of the special-shaped barrel at the same time, thereby ensuring that the special-shaped barrel has a high position repeatability after passing.

[0018] As a preferred technical solution of the present invention, a limiting hole is provided on the surface of the bayonet, and when the bayonet slides relatively to a position where it does not contact the detection unit, a limiting pin that limits the relative movement between the bayonet and the baffle can be inserted into the limiting hole;

[0019] The structural design of the limiting hole ensures that the bayonet pin does not contact the detection unit for a long time, that is, it satisfies the requirement that all special-shaped barrels pass through when positioning is not required.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the special-shaped barrel positioning mechanism for the filling assembly line realizes the correction of the position of the special-shaped barrel through the mutual cooperation of the detection unit and the blocking unit, and has a blocking effect on the special-shaped barrel with the wrong barrel feeding direction, ensuring that the opening direction of the special-shaped barrel passing through is consistent, which is beneficial to the high repeatability of the positioning position after the special-shaped barrel passes through, and ensuring the continuity of the filling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the working state of the present invention;

[0024] Figure 4 This is a schematic diagram of the assembly of the bayonet pin of the present invention;

[0025] Figure 5 It is a schematic diagram of a special-shaped barrel of the present invention.

[0026] In the figure: 1 positioning support plate, 101 rotating shaft, 2 baffle plate, 201 latch pin, 202 spring, 203 limiting hole, 3 positioning lever, 301 mechanism support member. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-4 The present invention provides a technical solution: a special-shaped barrel positioning mechanism for a filling assembly line, comprising a detection unit and a blocking unit, wherein the detection unit comprises a positioning lever 3 that can rotate around a horizontal axis, and a torsion spring for inhibiting rotation is arranged between the positioning lever 3 and the rotation axis, and when the torsion spring is in a non-storage state, the angle between the positioning lever 3 and the vertical plane is α;

[0029] The blocking unit includes a baffle 2 that rotates around a horizontal axis, a torsion spring that inhibits rotation is provided between the baffle 2 and the rotation axis, and when the torsion spring is in a non-power storage state, the angle between the baffle 2 and the vertical plane is β, 0°<β≤α, the rotation axes of the baffle 2 and the positioning lever 3 are parallel or coincident, a latch 201 is slidably provided at the top end of the baffle 2, the sliding direction of the latch 201 is consistent with the rotation axis of the baffle 2, and a spring 202 is provided between the latch 201 and the baffle 2 along the relative motion direction;

[0030] When the positioning lever 3 rotates in the direction of decreasing α, the top end of the positioning lever 3 squeezes the bayonet 201, causing the bayonet 201 to move relative to the baffle 2. When the spring 202 is compressed to the maximum deformation, the positioning lever 3 drives the bayonet 201 and the baffle 2 to rotate synchronously.

[0031] The top end of the positioning lever 3 is provided with a mechanism support 301 for squeezing the bayonet 201, and the contact surfaces of the mechanism support 301 and the bayonet 201 are both arc-shaped surfaces or wedge-shaped surfaces;

[0032] Through the structural design of the arc surface or the wedge-shaped surface, when the mechanism support 301 squeezes the pin 201, since the baffle 2 is restricted by the torsion spring, a certain torque is required for rotation. At this time, the pin 201 will first retreat relative to the baffle 2. When the spring 202 is compressed to a certain amount, the torque of the pin 201 acting on the baffle 2 will reach the range of driving the baffle 2 to rotate. At this time, the baffle 2 rotates together with the positioning lever 3. At this time, the angle β is reduced, and the lowest position of the baffle 2 is lowered, blocking the passage of the special-shaped barrel below.

[0033] The positioning lever 3 is a curved lever with its lower end bent forward. When the torsion spring is in a non-forced state, the lower end of the positioning lever 3 can contact the workpiece before the baffle 2.

[0034] The structural design that the positioning lever 3 contacts the special-shaped barrel before the baffle 2 prevents the baffle 2 from having no space to continue moving downward when the detection unit detects that the barrel is not in the correct position, causing the special-shaped barrel below to be squeezed, deformed or damaged.

[0035] It also includes a door-shaped positioning support plate 1, a rotating shaft 101 is horizontally arranged inside the positioning support plate 1, and the middle positions of the baffle plate 2 and the positioning lever 3 are rotatably mounted on the rotating shaft 101 through a bearing pair.

[0036] The positioning support plate 1 is an M-shaped structure, and two groups of detection units and blocking units are symmetrically arranged in the positioning support plate 1. The detection unit is located in the middle position of the positioning support plate 1 relative to the blocking unit;

[0037] Through two sets of symmetrically arranged detection units and blocking units, positioning detection is performed on both sides of the special-shaped barrel at the same time, thereby ensuring that the special-shaped barrel has a high position repeatability after passing.

[0038] The surface of the latch 201 is provided with a limit hole 203. When the latch 201 slides relatively to a position where it will not contact the detection unit, a limit pin that restricts the relative movement between the latch 201 and the baffle 2 can be inserted into the limit hole 203;

[0039] Through the structural design of the limit hole 203, the latch 201 can be made not to contact the detection unit for a long time, that is, it meets the requirement that all special-shaped barrels can pass through when positioning is not required.

[0040] Refer to Figure 5 , the special-shaped barrel is a rectangular barrel with a U-shaped protrusion at the upper end. A filling port is arranged at one end of the opening of the protrusion, and a slope is arranged on the inner wall of the side corresponding to the opening of the protrusion.

[0041] When the special-shaped barrel passes through the positioning mechanism in the correct orientation, the open end of the protrusion first enters the positioning mechanism. At this time, the positioning lever 3 enters the surrounded area of the protrusion from the open end of the protrusion. At this time, the lowest height of the positioning lever 3 is between the upper surface of the barrel body of the special-shaped barrel and the highest point of the protrusion, and the lowest point of the baffle 2 is above the upper surface of the barrel body. As the barrel body continues to feed, the lower end of the positioning lever 3 contacts the inner wall of the side corresponding to the opening of the protrusion. At this time, under the action of the slope, the positioning lever 3 rotates slightly, that is, it crosses the height of the protrusion, and this rotation causes the mechanism support 301 to collide with the latch 201. The latch 201 slides with a small displacement relative to the baffle 2, but the baffle 2 is restricted by the torsion spring and does not rotate, that is, the height of the lower end of the baffle 2 will not decrease and will not affect the passage of the special-shaped barrel;

[0042] When the special-shaped barrel enters with an incorrect orientation, the lower end of the positioning lever 3 first touches the outer wall of the protrusion. Since there is no slope on the outer wall, as the special-shaped barrel feeds, it drives the positioning lever 3 to continue rotating. At this time, the mechanism support 301 continuously presses the latch 201. When the spring 202 in the latch 201 is compressed to a certain amount, the latch 201 drives the baffle 2 to rotate synchronously with the positioning lever 3, so that the lowest point of the lower end of the baffle 2 drops, and this point is lower than the upper surface of the barrel body of the special-shaped barrel, thereby achieving the effect of blocking the passage of the special-shaped barrel. At this time, with the cooperation of an additional unloading mechanism, the special-shaped barrel with an incorrect orientation is removed from the production line, thus ensuring the continuity of the production line operation;

[0043] At the same time, this positioning mechanism adopts two sets of detection units and blocking units arranged symmetrically. When the positioning lever 3 on one side first contacts the inner wall of the protrusion, the feeding of the special-shaped barrel on this side can be briefly inhibited. When the other side feeds to contact the inner wall of the protrusion with the positioning lever 3 on the other side, the orientation of the special-shaped barrel is fine-tuned. Subsequently, the positioning lever 3 rotates slightly, crosses the protrusion, and then the special-shaped barrel passes through this positioning mechanism.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special-shaped barrel positioning mechanism for a filling line, comprising a detection unit and a blocking unit, characterized in that: The detection unit comprises a positioning lever (3) that can rotate about a horizontal axis, a torsion spring for inhibiting rotation being provided between the positioning lever (3) and the rotation axis, and when the torsion spring is in a non-force storage state, the angle between the positioning lever (3) and the vertical plane is α; The blocking unit comprises a baffle (2) that rotates around a horizontal axis, a torsion spring for inhibiting rotation is provided between the baffle (2) and the rotation axis, and when the torsion spring is in a non-power storage state, the angle between the baffle (2) and a vertical plane is β, 0°<β≤α, the rotation axes of the baffle (2) and the positioning lever (3) are parallel or coincident, a latch (201) is slidably provided at the top end of the baffle (2), the sliding direction of the latch (201) is consistent with the rotation axis of the baffle (2), and a spring (202) is provided between the latch (201) and the baffle (2) along the direction of relative movement; When the positioning lever (3) rotates in a direction in which α decreases, the top end of the positioning lever (3) squeezes the latch pin (201), causing the latch pin (201) to move relative to the baffle plate (2); when the spring (202) is compressed to a maximum deformation, the positioning lever (3) drives the latch pin (201) and the baffle plate (2) to rotate synchronously.

2. The special-shaped barrel positioning mechanism for a filling line according to claim 1 is characterized in that: A mechanism support member (301) for squeezing the bayonet pin (201) is provided at the top end of the positioning lever (3), and the contact surfaces of the mechanism support member (301) and the bayonet pin (201) are both arc-shaped surfaces or wedge-shaped surfaces.

3. The special-shaped barrel positioning mechanism for a filling line according to claim 1 is characterized in that: The positioning lever (3) is a curved lever with its lower end bent forward, and when the torsion spring is in a non-force storage state, the lower end of the positioning lever (3) can contact the workpiece before the baffle (2).

4. The special-shaped barrel positioning mechanism for a filling line according to claim 1 is characterized in that: It also comprises a door-shaped positioning support plate (1), a rotating shaft (101) being horizontally arranged inside the positioning support plate (1), and the middle positions of the baffle plate (2) and the positioning lever (3) are rotatably mounted on the rotating shaft (101) via a bearing pair.

5. The special-shaped barrel positioning mechanism for a filling line according to claim 4 is characterized in that: The positioning support plate (1) is an M-shaped structure, and two groups of detection units and blocking units are symmetrically arranged inside the positioning support plate (1), and the detection units are located in the middle of the positioning support plate (1) relative to the blocking units.

6. The special-shaped barrel positioning mechanism for a filling line according to any one of claims 1 to 5, characterized in that: A limiting hole (203) is provided on the surface of the bayonet (201); when the bayonet (201) slides relatively to a position where it does not contact the detection unit, a limiting pin that limits the relative movement between the bayonet (201) and the baffle (2) can be inserted into the limiting hole (203).

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