A multi-bucket linear scale for a packaging machine

Abstract

The application discloses a kind of packaging machine multi-hopper straight line scales, belong to packaging machine technical field, it includes weighing turnover unit, weighing turnover unit includes support, weighing sensor, turnover scale hopper, pivot, passive swing plate, turnover push rod, transmission mechanism, stepper motor and scale hopper reset mechanism, turnover scale hopper is arranged on pivot, pivot is transversely installed in movable bearing seat, the movable bearing seat is located in vertical limit slot on support and is supported on weighing sensor, weighing sensor is arranged on support, passive swing plate is arranged on pivot.Weighing sensor is arranged at the bottom of the support of weighing turnover unit, so that weighing sensor is changed from traditional dynamic work to static work, not only makes weighing sensor keep excellent accurate detection state, work performance is more stable, but also avoids the damage of weighing sensor, prolongs the service life of weighing sensor;The application also has the characteristics of accurate quantification of packaging material, stable work performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging machine technical field, specifically is related to a kind of packaging machine multi-bucket straight line scale. BACKGROUND

[0002] The packaging machine multi-bucket straight line scale in prior art has the following defects: since weighing sensor moves with weighing bucket, weighing sensor is in dynamic working state, not only weighing sensor cannot keep excellent accurate detection state, working performance is unstable, but also in dynamic working state, weighing sensor is easily damaged, shortens the service life of weighing sensor. SUMMARY

[0003] The present application provides a kind of packaging machine multi-bucket straight line scale of packaging material accurate dosing, working performance stable, long service life.

[0004] To solve the above technical problems, the technical solution applied by the present application is:

[0005] A kind of packaging machine multi-bucket straight line scale, including weighing turnover material unit, the weighing turnover material unit includes support, weighing sensor, turnover weighing bucket, pivot, passive swing plate, turnover push rod, transmission mechanism, stepper motor and weighing bucket reset mechanism, turnover weighing bucket is located on pivot, pivot is transversely installed in movable bearing seat, the movable bearing seat is located in vertical limit slot on support and is supported on weighing sensor, weighing sensor is located on support, passive swing plate is located on pivot, stepper motor is located on support, in reset state, turnover push rod is in vertical state and does not contact with passive swing plate, weighing bucket reset mechanism is used to make the turnover weighing bucket in reset state keep horizontal and opening upward, when stepper motor drives turnover push rod to rotate clockwise by transmission mechanism, turnover push rod changes from original vertical state to horizontal state, turnover push rod pushes passive swing plate, passive swing plate drives pivot, pivot drives turnover weighing bucket to turn over 90º forward, when stepper motor drives turnover push rod to rotate counterclockwise by transmission mechanism, turnover push rod changes from original vertical state to horizontal state, turnover push rod pushes passive swing plate, passive swing plate drives pivot, pivot drives turnover weighing bucket to turn over 90º backward.

[0006] Further, the weighing bucket reset mechanism includes reset pressing plate, reset spring, clockwise jack and counterclockwise jack, the clockwise jack and counterclockwise jack are located on passive swing plate, one end of reset pressing plate is hinged on support, the reset spring is used to hold reset pressing plate, so that reset pressing plate is tightly attached on clockwise jack and counterclockwise jack, to make turnover weighing bucket in reset state.

[0007] Further, the transmission mechanism comprises a synchronous belt, a main transmission wheel, a driven wheel and a driven shaft, the main transmission wheel installed on the stepping motor is connected with the driven wheel through the synchronous belt, the driven wheel is installed on one end of the driven shaft, and the driven shaft is installed on the support.

[0008] Further, the motor rotation position detection corrector is used to detect the rotation angle of the motor so as to make the turnover push rod stay at the correct position.

[0009] Further, the motor rotation position detection corrector comprises a position identification disc, a position identification point detection sensor and a controller, the output shaft of the motor extends from the rear end of the motor, the position identification disc is installed on the output shaft of the rear end of the motor, the position identification point detection sensor transmits position information to the controller, and the controller adjusts the rotation angle of the motor according to the position information so as to make the output shaft of the motor rotate to the preset position.

[0010] Further, the workbench is provided with an L-shaped support frame, and the material bin is installed on the L-shaped support frame.

[0011] Further, the workbench is provided with an L-shaped support frame, and the material bin is installed on the L-shaped support frame.

[0012] Further, the material bin is provided with a plurality of discharge ports corresponding to the plurality of vibration discharge grooves, and the discharge ports are provided with material flow adjusting doors.

[0013] Further, the workbench is a box structure, and the cavity in the box is an electric control room.

[0014] The beneficial effects of the present application are that the turnover hopper in the present application is arranged on a rotating shaft, the rotating shaft is transversely arranged on a movable bearing seat, the movable bearing seat is arranged in a vertical limiting groove on a support and supported on a weighing sensor, so that the weighing sensor is changed from traditional dynamic work to static work, not only the weighing sensor keeps excellent accurate detection state, the working performance is more stable, but also the damage of the weighing sensor is avoided, the service life of the weighing sensor is prolonged; the present application also has the characteristics of accurate quantitative packaging material and stable working performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application is further illustrated by the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present application, and other drawings can be obtained by the following drawings without creative labor for ordinary skilled in the art:

[0016] Figure 1 It is a structural schematic view of the present application;

[0017] Figure 2 It is a left view as shown in the figure; Figure 1

[0018] Figure 3 It is a perspective view as shown in the figure; Figure 1

[0019] Figure 4 It is a structural schematic view of the weighing and material turnover unit as shown in the figure; Figure 1

[0020] Figure 5 It is a right side oblique perspective view as shown in the figure; Figure 4

[0021] Figure 6 It is a structural schematic view of multiple weighing and material turnover units assembled together as shown in the figure. Figure 5 In the figure: 1, material bin; 2, workbench; 3, vibration motor; 4, vibration unloading chute; 5, weighing and material turnover unit; 6, material rejection recycling box; 7, movable bearing seat; 8, L-shaped support frame; 9, material flow regulating door; 10, support; 11, weighing sensor; 12, turnover hopper; 13, rotating shaft; 14, passive swing plate; 15, turnover push rod; 16, stepping motor; 17, hopper reset mechanism; 18, transmission mechanism; 19, motor rotation position detection corrector; 20, reset pressing plate; 21, reset spring; 22, clockwise jack; 23, counterclockwise jack; 24, synchronous belt; 25, main transmission wheel; 26, driven wheel; 27, driven shaft; 28, position identification disc; 29, position identification point detection sensor.

[0022] DETAILED DESCRIPTION

[0023] ​​​​​In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward rotation", "reverse rotation", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] As shown in Figure 1 , 2 , 3, a packaging machine multi-hopper straight line scale includes a hopper 1, a workbench 2, a plurality of vibration motors 3, a plurality of vibrating discharge chutes 4, a plurality of weighing and turning units 5, and a rejected material recycling box 6. The weighing and turning units 5 are provided in plurality, and each of the plurality of weighing and turning units 5 corresponds to one of the plurality of vibrating discharge chutes 4. The plurality of weighing and turning units 5 are arranged on one side of the workbench 2, and the rejected material recycling box 6 is located below the plurality of weighing and turning units 5. The vibrating discharge chute 4 is installed on the vibration motor 3, and the vibration motor 3 is arranged on the workbench 2. The workbench 2 is a box structure, and the cavity in the box is an electric control room. The workbench 2 is provided with an L-shaped support frame 8, and the hopper 1 is installed on the L-shaped support frame 8.

[0026] The hopper 1 is provided with a plurality of discharge ports corresponding to the plurality of vibrating discharge chutes 4, and the discharge ports are provided with material flow adjusting doors 9.

[0027] The hopper is conveyed through the plurality of vibrating discharge chutes to the corresponding weighing and turning units, and when the weight of the material in the turning hopper is within the error range, the turning hopper is turned forward to pour out the material for discharging. When the weight of the material in the turning hopper exceeds the error range, the turning hopper is turned backward to pour the material into the rejected material recycling box.

[0028] As shown in Figure 4As shown, the weighing and turning unit 5 comprises a support 10, a weighing sensor 11, a turning hopper 12, a rotating shaft 13, a passive swing plate 14, a turning push rod 15, a transmission mechanism 18, a stepping motor 16 and a hopper resetting mechanism 17. The turning hopper 12 is arranged on the rotating shaft 13 which is transversely arranged on a movable bearing seat 7 arranged in a vertical limiting slot on the support 10 and supported on the weighing sensor 11 arranged on the support 10. The passive swing plate 14 is arranged on the rotating shaft 13. The stepping motor 16 is arranged on the support 10. In the resetting state, the turning push rod 15 is in a vertical state and does not contact the passive swing plate 14. The hopper resetting mechanism 17 is used to keep the turning hopper 12 in the resetting state horizontal and the opening upward. When the stepping motor 16 drives the turning push rod 15 to rotate clockwise through the transmission mechanism 18, the turning push rod 15 changes from the original vertical state to a horizontal state. In the process of turning, the turning push rod 15 pushes the passive swing plate 14, the passive swing plate 14 drives the rotating shaft 13, and the rotating shaft 13 drives the turning hopper 12 to turn forward by 90º. When the stepping motor 16 drives the turning push rod 15 to rotate counterclockwise through the transmission mechanism, the turning push rod 15 changes from the original vertical state to a horizontal state. In the process of turning, the turning push rod 15 pushes the passive swing plate 14, the passive swing plate 14 drives the rotating shaft 13, and the rotating shaft 13 drives the turning hopper 12 to turn backward by 90º.

[0029] Further comprising a motor rotating position detection corrector 19 which is used to detect the rotating angle of the motor and keep the turning push rod at the correct position.

[0030] As shown in Figure 5 , 6 The hopper resetting mechanism 17 comprises a resetting pressing plate 20, a resetting spring 21, a clockwise top rod 22 and a counterclockwise top rod 23. The clockwise top rod 22 and the counterclockwise top rod 23 are arranged on the passive swing plate 14. One end of the resetting pressing plate 20 is hinged to the support 10. The resetting spring 21 is used to pull the resetting pressing plate 20 so that the resetting pressing plate 20 is tightly attached to the clockwise top rod 22 and the counterclockwise top rod 23, so that the turning hopper 12 is in the resetting state.

[0031] The transmission mechanism 18 comprises a synchronous belt 24, a main transmission wheel 25, a driven wheel 26 and a driven shaft 27. The main transmission wheel 25 arranged on the stepping motor 16 is connected with the driven wheel 26 through the synchronous belt 24. The driven wheel 26 is arranged on one end of the driven shaft 27. The driven shaft 27 is arranged on the support 10. The turning push rod 15 is arranged on the other end of the driven shaft 27.

[0032] The motor rotation position detection corrector 19 comprises a position identification disc 28, a position identification point detection sensor 29 and a controller, the output shaft of the motor 16 extends from the rear end of the motor 16, the position identification disc 28 is installed on the output shaft of the rear end of the motor 16, the position identification point detection sensor 29 transmits position information to the controller, and the controller adjusts the rotation angle of the motor according to the position information, so that the output shaft of the motor rotates to the preset position. The position identification point detection sensor 29 can adopt infrared opposite shooting optical fiber or metal induction sensor. When the infrared opposite shooting optical fiber is adopted, an infrared through hole is arranged at the position identification point on the position identification disc 28, and when the metal induction sensor is adopted, a metal block is arranged at the position identification point on the position identification disc 28.

[0033] The present application has the following characteristics:

[0034] 1. The turnover weighing hopper in the weighing and turnover unit is arranged on a rotating shaft, the rotating shaft is transversely arranged on a movable bearing seat, the movable bearing seat is arranged in a vertical limiting groove on the support and supported on the weighing sensor, so that the weighing sensor is changed from traditional dynamic working to static working, the weighing sensor is kept in an excellent and accurate detection state, the working performance is more stable, the damage of the weighing sensor is avoided, and the service life of the weighing sensor is prolonged.

[0035] 2. The turnover weighing hopper in the weighing and turnover unit has a front and rear turnover function, when the error of the weight of the material in the turnover weighing hopper is within the set range, the turnover weighing hopper is front turned to realize normal discharging, when the error of the weight of the material in the turnover weighing hopper exceeds the set range, the turnover weighing hopper is rear turned to realize the rejection of the material, and the accurate and quantitative function of the packaging material of the present application is realized.

[0036] 3. The reset mechanism of the weighing hopper in the present application is unique in design, can ensure that the turnover weighing hopper is kept horizontal and the opening faces upward in the reset state, and can ensure that the turnover weighing hopper is limited and fixed, so that the turnover weighing hopper will not be tilted during the process of receiving the material.

[0037] 4. The present application additionally provides a motor rotation position detection corrector, and the specific position point after rotation is marked to ensure that the output shaft of the motor can be accurately rotated by 90º.

[0038] In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A multi-hopper linear scale for a packaging machine, comprising a weighing and tilting unit, the weighing and tilting unit including a support, a load cell, a tilting hopper, a rotating shaft, a passive swing plate, a tilting push rod, a transmission mechanism, a stepper motor, and a hopper reset mechanism. The tilting hopper is mounted on the rotating shaft, which is horizontally mounted on a movable bearing seat. The movable bearing seat is located in a vertical limiting groove on the support and supported on the load cell. The load cell is mounted on the support. The passive swing plate is mounted on the rotating shaft. The stepper motor is mounted on the support. In the reset state, the tilting push rod is in a vertical state and does not contact the passive swing plate. The reset mechanism is used to keep the tilting bucket in the reset state horizontal and with the opening facing upward. When the stepper motor drives the tilting push rod to rotate clockwise through the transmission mechanism, the tilting push rod changes from its original vertical state to a horizontal state. The tilting push rod pushes the passive swing plate, which drives the rotating shaft. The rotating shaft drives the tilting bucket to tilt forward 90º. When the stepper motor drives the tilting push rod to rotate counterclockwise through the transmission mechanism, the tilting push rod changes from its original vertical state to a horizontal state. The tilting push rod pushes the passive swing plate, which drives the rotating shaft. The rotating shaft drives the tilting bucket to tilt backward 90º. The weighing bucket reset mechanism includes a reset pressure plate, a reset spring, a clockwise push rod, and a counterclockwise push rod. The clockwise and counterclockwise push rods are mounted on a passive swing plate. One end of the reset pressure plate is hinged to a bracket. The reset spring is used to pull the reset pressure plate so that the reset pressure plate is pressed tightly against the clockwise and counterclockwise push rods, so that the overturned weighing bucket is in the reset state. The transmission mechanism includes a synchronous belt, a main drive pulley, a driven pulley, and a driven shaft. The main drive pulley, which is mounted on the stepper motor, is connected to the driven pulley via the synchronous belt. The driven pulley is mounted on one end of the driven shaft, which is mounted on the bracket. The flip push rod is mounted on the other end of the driven shaft. It also includes a motor rotation position detection and correction device, which is used to detect the rotation angle of the stepper motor so that the flip push rod stays in the correct position; The motor rotation position detection and correction device includes a position marker disk, a position marker point detection sensor, and a controller. The output shaft of the stepper motor extends from the rear end of the stepper motor. The position marker disk is mounted on the output shaft at the rear end of the stepper motor. The position marker point detection sensor transmits position information to the controller. The controller adjusts the rotation angle of the stepper motor based on the position information so that the output shaft of the stepper motor rotates to a preset position. It also includes a hopper, a workbench, multiple vibrating motors, multiple vibrating feeding troughs, and a rejection bin. Multiple weighing and turning units are provided, each corresponding to one of the multiple vibrating feeding troughs. The vibrating feeding troughs are mounted on the vibrating motors, which are located on the workbench. The multiple weighing and turning units are located on one side of the workbench, and the rejection bin is located below the multiple weighing and turning units. The hopper is transported via the multiple vibrating feeding troughs to the turning hopper of the corresponding weighing and turning unit. When the weight of the material in the turning hopper is within the error range, the turning hopper flips forward to pour out the material. When the weight of the material in the turning hopper exceeds the error range, the turning hopper flips backward to pour the material into the rejection bin.

2. The multi-hopper linear scale for packaging machines according to claim 1, characterized in that: The workbench is equipped with an L-shaped support frame, and the hopper is installed on the L-shaped support frame.

3. The multi-hopper linear scale for packaging machines according to claim 2, characterized in that: The silo is provided with multiple discharge ports corresponding to multiple vibrating discharge troughs, and the discharge ports are provided with material flow regulating gates.

4. The multi-hopper linear scale for packaging machines according to claim 3, characterized in that: The workbench is a box-shaped structure, and the cavity inside the box is the electrical control room.

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