Adjustable packaging and metering device for salt

Abstract

The utility model relates to the field of salt metering and packaging, in particular to an adjustable packaging and metering device for salt. The device comprises a scraping plate assembly, a measuring cup assembly, a rotation driving mechanism and a lifting driving mechanism, the scraping plate assembly comprises an upper scraping plate provided with a feeding port and a lower scraping plate provided with a discharging port, and the discharging port is staggered with the feeding port; the measuring cup assembly comprises a measuring cup frame and a plurality of measuring cups, the multiple measuring cups are installed on the measuring cup frame in the circumferential direction of the measuring cup frame, each measuring cup is of a telescopic structure, an upper end opening abuts against the upper scraper blade, and a lower end opening abuts against the lower scraper blade; the rotary driving mechanism is connected with the measuring cup frame and used for driving the measuring cup frame to rotate, and the measuring cup frame drives all the measuring cups to rotate in the rotating process until the upper end openings sequentially face the feeding port and the lower end openings sequentially face the discharging port; the lifting driving mechanism is connected with the lower scraper and used for driving the lower scraper to ascend and descend. According to the utility model, the volume of the measuring cup can be conveniently and quickly adjusted, so that the precision and the stability of salt package metering are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to table salt measurement packaging field, concretely relates to a kind of adjustable packaging measuring device for table salt. BACKGROUND

[0002] Traditional table salt small package measuring cup is designed according to the specification of packaged product, and weight recheck is carried out by manual sampling inspection or through checkweigher after packaging measurement, and manual shutdown inspection and processing are carried out again after weight deviation. Considering that table salt packaging has multiple specifications in actual production, one measuring cup is designed for each specification, which is too costly and troublesome to replace.

[0003] In the patent with application number 201720620021.2 and patent name of large-range discharging measuring cup of packaging machine, the measuring cup includes upper measuring cup and lower measuring cup, the upper measuring cup is embedded in the lower measuring cup to form a cavity for controlling the weight of the product, and the upper measuring cup is sleeved with a detachable nest. After realizing basic measurement adjustment through the upper measuring cup and the lower measuring cup, further adjustment of measurement is realized by replacing the nest. Although this patent can realize capacity adjustment, it still needs to prepare multiple nests, and it is not very fast and convenient when adjusting the capacity. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide an adjustable packaging measuring device for table salt, which can conveniently and quickly adjust the volume of the measuring cup when the packaging specification of table salt is adjusted or the density changes due to the change of the particle size of table salt, thereby improving the accuracy and stability of table salt packaging measurement.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: an adjustable packaging measuring device for table salt, comprising:

[0006] A scraper assembly includes an upper scraper and a lower scraper, the upper scraper is provided with a feeding port, the lower scraper is provided with a discharging port, and the discharging port is staggered with the feeding port;

[0007] A measuring cup assembly includes a measuring cup frame and multiple measuring cups, the multiple measuring cups are installed on the measuring cup frame along the circumference of the measuring cup frame, the measuring cups are of telescopic structure, the upper end opening is opposite to the upper scraper, and the lower end opening is opposite to the lower scraper;

[0008] A rotary drive mechanism is connected with the measuring cup frame and is used to drive the measuring cup frame to rotate, and the measuring cup frame drives each measuring cup to rotate to the upper end opening which is opposite to the feeding port and the lower end opening which is opposite to the discharging port in the process of rotation;

[0009] A lifting drive mechanism is connected with the lower scraper and is used to drive the lower scraper to lift, and the measuring cup is shortened with the lifting of the lower scraper and is lengthened with the lowering of the lower scraper.

[0010] Further, in order to adjust the capacity of the measuring cup in time according to the weighing feedback, the adjustable packaging and measuring device for salt further comprises:

[0011] A weighing mechanism is arranged for weighing the salt discharged from the discharge port at a time;

[0012] A controller is connected to the weighing mechanism and the lifting driving mechanism respectively, and is configured to control the lifting driving mechanism to drive the lower scraper to lift according to the weight fed back by the weighing mechanism.

[0013] Further, in order to facilitate feeding, the adjustable packaging and measuring device for salt further comprises a feeding cylinder arranged at the feeding port of the upper scraper.

[0014] Further, in order to facilitate discharging, the adjustable packaging and measuring device for salt further comprises a discharging cylinder arranged at the discharge port of the lower scraper.

[0015] Further, the measuring cup comprises an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are slidingly matched.

[0016] Further, in order to automatically feed the salt to the feeding port, the adjustable packaging and measuring device for salt further comprises a screw conveyor configured to feed the salt to the feeding port.

[0017] Further, a reasonable mounting position of the lifting driving mechanism and the rotating driving mechanism is provided, the lifting driving mechanism is a worm screw lifting machine, and a screw rod of the worm screw lifting machine is connected to the lower scraper.

[0018] The screw rod is of a hollow structure, the lower scraper is provided with an avoiding hole, and a driving shaft of the rotating driving mechanism is connected to the measuring cup frame through the hollow part of the screw rod and the avoiding hole.

[0019] After the above technical scheme is adopted, when the density changes due to the change of the particle size of the salt in the case of changing the packaging specification or not changing the packaging specification, the lower scraper is driven to move in the up-down direction by the lifting driving mechanism, and the measuring cup is driven to move in the same direction by the lower scraper during the movement, so that the volume of the measuring cup is changed, the weight of the salt contained in the measuring cup is kept at the required weight, and the accuracy and stability of the packaging and measuring of the salt are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of a first adjustable packaging and measuring device for salt of the present application;

[0021] Figure 2 FIG. 2 is a structural schematic view of a second adjustable packaging and measuring device for salt of the present application;

[0022] FIG. 3 is a structural schematic view of a third adjustable packaging and measuring device for salt of the present application;Figure 3 The third adjustable packaging and metering device for table salt is a structure schematic view of the utility model;

[0023] In the figure, 1 is an upper scraper, 2 is a lower scraper, 3 is a measuring cup assembly, 4 is a rotary drive mechanism, 5 is a lifting drive mechanism, 6 is a weighing mechanism, 7 is a controller, 8 is a feeding cylinder, 9 is a discharging cylinder, and 10 is a screw conveyor. DETAILED DESCRIPTION

[0024] In order to make the content of the utility model more easily and clearly understood, the utility model will be further described in detail below according to specific embodiments and in combination with the accompanying drawings.

[0025] As shown in Figure 1 , Figure 2 and Figure 3 , an adjustable packaging and metering device for table salt comprises:

[0026] A scraper assembly comprises an upper scraper 1 and a lower scraper 2, the upper scraper 1 is provided with a feeding port, the lower scraper 2 is provided with a discharging port, and the discharging port is staggered with the feeding port;

[0027] A measuring cup assembly 3 comprises a measuring cup frame and multiple measuring cups, the multiple measuring cups are installed on the measuring cup frame in the circumferential direction of the measuring cup frame, the measuring cups are of telescopic structure, the upper end opening is in abutment with the upper scraper 1, and the lower end opening is in abutment with the lower scraper 2;

[0028] A rotary drive mechanism 4 is connected with the measuring cup frame and is used to drive the measuring cup frame to rotate, the measuring cup frame drives each measuring cup to rotate to the upper end opening sequentially facing the feeding port and the lower end opening sequentially facing the discharging port in the process of rotation;

[0029] A lifting drive mechanism 5 is connected with the lower scraper 2 and is used to drive the lower scraper 2 to lift, the measuring cups are shortened with the lifting of the lower scraper 2 and are lengthened with the lowering of the lower scraper 2.

[0030] Specifically, when the density changes due to the change of the particle size of table salt in the case of changing the packaging specification or not changing the packaging specification, the lower scraper 2 can be driven by the lifting drive mechanism 5 to move in the up-down direction, the measuring cups are driven by the lower scraper 2 to move in the same direction in the process of movement, thereby changing the volume of the measuring cups, keeping the weight of the table salt contained in the measuring cups at the required weight, and thereby improving the accuracy and stability of the packaging and metering of table salt.

[0031] In the embodiment, the measuring cup can be configured to package products in different specifications in the range of 250-600g. The position of the upper scraper 1 is fixed, and the measuring cup is in sliding fit with the upper scraper 1 and the lower scraper 2, respectively. The sliding grooves can be provided on the upper scraper 1 and the lower scraper 2, respectively. The measuring cup slides along the sliding grooves during the rotation driven by the measuring cup frame and is clamped so as not to be separated from the upper scraper 1 and the lower scraper 2. The measuring cup is contracted by the lower scraper 2 during the rising process, and the volume is reduced. During the descending process, the measuring cup is elongated, and the volume is increased.

[0032] In one embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the adjustable packaging and metering device for salt further comprises a feeding cylinder 8 installed at the feeding port of the upper scraper 1.

[0033] Specifically, the feeding cylinder 8 is provided to better receive the salt conveyed and to avoid the salt conveyed from falling on the upper scraper 1.

[0034] In one embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the adjustable packaging and metering device for salt further comprises a discharging cylinder 9 installed at the discharging port of the lower scraper 2.

[0035] Specifically, the discharging cylinder 9 is provided to facilitate the salt in the measuring cup to better fall on the packaging machine.

[0036] In the embodiment, the measuring cup comprises an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are in sliding fit.

[0037] In the embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the lifting driving mechanism 5 is a worm screw lifting machine, and the screw rod of the worm screw lifting machine is connected with the lower scraper 2; wherein,

[0038] The screw rod is of hollow structure, the lower scraper 2 is provided with an avoiding hole, and the driving shaft of the rotating driving mechanism 4 is connected with the measuring cup frame through the hollow part of the screw rod and the avoiding hole.

[0039] In this way, the lifting driving mechanism 5 and the rotating driving mechanism 4 can work independently without interference with each other while ensuring compact overall structure. The rotating driving mechanism 4 can comprise a servo motor and a speed reducer, the output shaft of the servo motor is connected with the input shaft of the speed reducer, and the output shaft of the speed reducer serves as or is connected with the driving shaft.

[0040] In one embodiment, as shown in Figure 2 and Figure 3As shown, the adjustable packaging and metering device for salt also comprises a screw conveyor 10 for conveying salt to the feeding port.

[0041] In this way, the salt supply can be automatically conveyed to the feeding port, and the measuring cup can be rotated to face the feeding port, so that the receiving of the salt can be completed.

[0042] In one embodiment, as shown, the adjustable packaging and metering device for salt also comprises: Figure 3

[0043] The weighing mechanism 6 is used for weighing the salt discharged from the discharge port at a time;

[0044] The controller 7 is connected to the weighing mechanism 6 and the lifting driving mechanism 5, respectively, and is used for controlling the lifting driving mechanism 5 to drive the lower scraper 2 to lift according to the weight fed back by the weighing mechanism 6.

[0045] Specifically, during the production process, the weighing mechanism 6 rechecks the weight of the salt bag packaged by the packaging machine, the controller 7 can obtain the weight of the salt bag in real time, controls the working of the lifting driving mechanism 5 according to the deviation from the standard, adjusts the volume of the measuring cup, and automatically adjusts the packaging and metering at any time in this embodiment, dynamically adjusts the volume of the measuring cup, continuously corrects and reduces the deviation of the product packaging and metering and the target value, and greatly improves the accuracy and stability of the packaging and metering.

[0046] In this embodiment, the weighing mechanism 6 is arranged together with the packaging machine as much as possible, so as to reduce the lag and deviation of the product feedback as much as possible.

[0047] Based on the above ideal embodiments of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.​

Claims

1. A salt adjustable packaging metering device, characterized in that it comprises: a scraper assembly comprising an upper scraper (1) and a lower scraper (2), the upper scraper (1) is provided with an inlet, the lower scraper (2) is provided with an outlet, the outlet is staggered with the inlet; a measuring cup assembly (3) comprising a measuring cup frame and a plurality of measuring cups, the plurality of measuring cups are installed on the measuring cup frame in the circumferential direction of the measuring cup frame, the measuring cups are telescopic structure, the upper end opening is in contact with the upper scraper (1), and the lower end opening is in contact with the lower scraper (2); a rotary drive mechanism (4) connected with the measuring cup frame for driving the measuring cup frame to rotate, the measuring cup frame drives each measuring cup to rotate to the upper end opening in turn facing the inlet and the lower end opening in turn facing the outlet during rotation; a lifting drive mechanism (5) connected with the lower scraper (2) for driving the lower scraper (2) to lift, the measuring cup shortens with the lifting of the lower scraper (2) and lengthens with the lowering of the lower scraper (2).

2. The salt adjustable packaging metering device according to claim 1, characterized in that it further comprises: a weighing mechanism (6) for weighing the salt discharged from the outlet at a time; a controller (7) connected with the weighing mechanism (6) and the lifting drive mechanism (5) respectively, for controlling the lifting drive mechanism (5) to drive the lower scraper (2) to lift according to the weight fed back by the weighing mechanism (6).

3. The salt adjustable packaging metering device according to claim 1, characterized in that it further comprises an inlet cylinder (8) installed at the inlet of the upper scraper (1).

4. The salt adjustable packaging metering device according to claim 1, characterized in that it further comprises an outlet cylinder (9) installed at the outlet of the lower scraper (2).

5. The salt adjustable packaging metering device according to claim 1, characterized in that the measuring cup comprises an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are in sliding fit.

6. The salt adjustable packaging metering device according to claim 1, characterized in that it further comprises a screw conveyor (10) for conveying salt to the inlet.

7. The salt adjustable packaging metering device according to claim 1, characterized in that the lifting drive mechanism (5) is a worm screw lifting machine, the screw rod of the worm screw lifting machine is connected with the lower scraper (2); wherein the screw rod is a hollow structure, the lower scraper (2) is provided with an avoiding hole, and the driving shaft of the rotary drive mechanism (4) is connected with the measuring cup frame through the hollow part of the screw rod and the avoiding hole. ​ ​ ​ ​ ​ ​ ​

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