CN106742111B - Conical discharging powder packaging machine and discharging method - Google Patents
Conical discharging powder packaging machine and discharging method Download PDFInfo
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- CN106742111B CN106742111B CN201710015367.4A CN201710015367A CN106742111B CN 106742111 B CN106742111 B CN 106742111B CN 201710015367 A CN201710015367 A CN 201710015367A CN 106742111 B CN106742111 B CN 106742111B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
- B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
- B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention discloses a conical discharged powder packaging machine and a discharging method, wherein the packaging machine comprises a powder material guide pipe and a weighing mechanism, the powder material guide pipe is vertically fixed on a platform, a rotating shaft is arranged in the powder material guide pipe, a spiral feeding blade is fixed on the rotating shaft, the weighing mechanism is fixed on a lifting platform, a lifting control mechanism is arranged on the platform and controls the lifting platform to lift along the axial direction of the powder material guide pipe, a conical body is connected and arranged at the front end of the rotating shaft, the diameter of the large conical end of the conical body is larger than that of the powder material guide pipe and extends out of the outlet end of the powder material guide pipe, and a gap is reserved between the circular conical surface of the conical body and the outlet end of the powder material guide pipe to form a discharging gap; the invention simplifies the discharging mechanism of the powder packaging machine, and eliminates the problems that powder flies out from the packaging opening, pollutes the environment, seriously influences the health of operators and causes inaccurate weighing.
Description
Technical Field
The invention relates to mechanical equipment, in particular to a conical discharging powder packaging machine and a discharging method.
Background
The powder packaging machine is very wide in the fields of chemical industry, food, feed and the like. It adopts automatic control, so that it has the functions of automatic weighing and automatic filling, etc.
A horizontal screw feeding powder packing machine is a common packing machine. In the actual use process, a certain fall (namely the length of the material bag) exists between the bottom of the packaging material bag and the filling opening of the horizontal spiral feeding powder packaging machine. When powder falls into a material bag from a filling opening in the filling process, air in the packaging bag is compressed, and part of the powder can be upwards sprayed out by the air in the packaging bag, so that the powder flies out from a bag clamping opening or an opening of equipment, the environment is polluted, the physical health of operators is seriously influenced, and the weighing is inaccurate.
In order to solve the problems, a vertical spiral feeding mode is mostly adopted at present. However, the material gate at the discharge opening of the vertical screw feeding mechanism is generally in the form of a turnover gate, a screw press-in and the like. The two types of discharging modes are supported by a complicated turnover door mechanism and a complicated helical blade, so that the problems of complicated structure, high failure rate and high maintenance cost are caused.
Disclosure of Invention
The invention aims to provide a conical discharging powder packaging machine and a discharging method, which simplify a discharging mechanism of the powder packaging machine and eliminate the problems that powder flies out from a packaging opening, pollutes the environment, seriously influences the health of operators and causes inaccurate weighing.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a conical discharging powder packaging machine comprises a powder material guide pipe and a weighing mechanism, wherein the powder material guide pipe is vertically fixed on a platform, a rotating shaft is arranged in the powder material guide pipe, a spiral feeding blade is fixed on the rotating shaft, a transmission mechanism is connected with the rotating shaft to drive the spiral feeding blade to rotate, the weighing mechanism is provided with a material bag clamping device, and a material bag opening is sleeved on an outlet of the powder material guide pipe; the weighing mechanism is fixed on a lifting platform, the lifting control mechanism is arranged on a platform and controls the lifting platform to lift along the axial direction of the powder material guide pipe, a material door sleeve is fixedly connected to the lifting platform and sleeved on the powder material guide pipe, a conical body is connected to the front end of the rotating shaft, the diameter of the large conical end of the conical body is larger than that of the powder material guide pipe and extends out of the outlet end of the powder material guide pipe, a gap is reserved between the circular conical surface of the conical body and the outlet end of the powder material guide pipe to form a discharging gap, when discharging is stopped, the lifting platform drives the material door sleeve to descend along the axial direction of the powder material guide pipe until the circular conical surface of the conical body plugs the discharging gap, and a packing controller is used for connection control of the transmission mechanism and the lifting control mechanism.
The scheme is further as follows: the lifting platform is arranged around the powder material guide pipe, guide rods are arranged on the platform at least on two opposite sides of the powder material guide pipe respectively, and the lifting platform is sleeved on the guide rods and is guided by the guide rods to lift along the axial direction of the powder material guide pipe.
The scheme is further as follows: the guide rod is a threaded rod, the lifting platform is sleeved on the guide rod through a nut, and the lifting control mechanism drives the threaded rod to rotate through the motor so as to realize axial lifting of the lifting platform along the powder guide pipe.
The scheme is further as follows: and a scraper is arranged on the inner side wall of the outlet end of the powder material guide pipe, and the front end of the scraper is in contact with the conical surface of the conical body ring to clean powder residues on the conical surface of the conical body ring.
The scheme is further as follows: conical body ring conical surface is provided with the vertical oblique recess side by side, the powder is along with conical body rotation along vertical oblique recess throw to the material bag in, follows conical body ring conical surface radially is provided with the ring recess, the ejection of compact gap shutoff is gone down to the ring recess to the bin gate sleeve.
The scheme is further as follows: a lifting platform displacement sensor is arranged between the lifting platform and the platform and used for measuring the powder filling height, and the displacement sensor is in signal connection with the packaging controller.
The scheme is further as follows: the taper angle of the taper is 90 to 120 degrees.
A discharging method based on a conical discharging powder packaging machine comprises a powder material guide pipe and a weighing mechanism, wherein the powder material guide pipe is vertically fixed on a platform, a rotating shaft is arranged in the powder material guide pipe, a spiral feeding blade is fixed on the rotating shaft, a transmission mechanism is connected with the rotating shaft to drive the spiral feeding blade to rotate, the weighing mechanism is provided with a material bag clamping device, and a material bag clamping device is used for sleeving a material bag opening on an outlet of the powder material guide pipe; the weighing mechanism is fixed on a lifting platform, the lifting control mechanism is arranged on a platform and controls the lifting platform to lift along the axial direction of the powder material guide pipe, the lifting platform is fixedly connected with a material door sleeve, the material door sleeve is sleeved on the powder material guide pipe, the front end of the rotating shaft is connected with a conical body, the diameter of the large conical end of the conical body is larger than that of the powder material guide pipe and extends out of the outlet end of the powder material guide pipe, a gap is reserved between the circular conical surface of the conical body and the outlet end of the powder material guide pipe to form a discharging gap, when discharging is stopped, the lifting platform drives the material door sleeve to descend along the axial direction of the powder material guide pipe until the discharging gap is blocked by the circular conical surface of the conical body, a packaging controller is connected with and controls the transmission mechanism and the lifting control mechanism, a lifting platform displacement sensor is arranged between the lifting platform and used for measuring the powder filling height, and the displacement sensor is connected to the packaging controller through signals;
the method comprises the following steps: the material bag clamping device sleeves the material bag on the outlet of the powder material guide pipe, the aperture of the material bag and the unit volume weight of the powder are input, and a relational expression of the weight of the material bag and the height of the powder in the material bag is formed according to the aperture of the input material bag and the unit volume weight of the powder, wherein the method further comprises the following steps:
the first step is as follows: setting a threshold value of the distance between the outlet of the powder material guide pipe and the surface of the powder in the material bag, descending the outlet of the powder material guide pipe to the bottom in the material bag, simultaneously opening a discharging gap, and starting a spiral feeding blade to rotate to start to fill the powder into the material bag;
the second step is that: determining the height of the powder in the material bag according to the relational expression, and adjusting the distance between the outlet of the powder material guide pipe and the surface of the powder in the material bag according to the threshold value;
the third step: repeating the second step until the weight reaches the set value and bagging is finished.
The scheme is further as follows: the material bag clamping device is provided with a dust concentration sensor, a dust concentration threshold value is arranged in the packaging controller, and in the process of filling powder into the material bag, the threshold value of the distance between the outlet of the powder guide pipe and the surface of the powder in the material bag and the rotation speed of the spiral feeding blade are adjusted through the comparison between the acquired dust concentration and the dust concentration threshold value.
The scheme is further as follows: the taper angle of the conical body is 90 degrees to 120 degrees, a scraper is arranged on the inner side wall of the outlet end of the powder material guide pipe, and the front end of the scraper is in contact with the conical surface of the conical body to clean powder residual matters on the conical surface of the conical body.
The beneficial effects of the invention are: the discharging mechanism of the powder packaging machine is simplified, and the problems that powder flies out from the packaging opening, pollutes the environment, seriously influences the health of operators and causes inaccurate weighing are solved.
The invention is described in detail below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic view of the initial state structure of the present invention;
FIG. 2 is a schematic structural view of an initial feeding state of the present invention;
fig. 3 is a structural schematic diagram of a feeding end state of the invention.
Detailed Description
Example 1:
a conical discharging powder packaging machine is shown in figures 1, 2 and 3 and comprises a powder material guide pipe 1 and a weighing mechanism 2, wherein the powder material guide pipe is vertically fixed on a platform 3, a rotating shaft 4 is arranged in the powder material guide pipe, a spiral feeding blade 5 is fixed on the rotating shaft, a transmission mechanism is connected with the rotating shaft through a motor 6, a belt 7 and a belt pulley 8 to drive the spiral feeding blade to rotate, the weighing mechanism is provided with a material bag clamping device 9, and the material bag clamping device is used for sleeving a material bag opening 10 on an outlet of the powder material guide pipe; the weighing mechanism is fixedly connected onto a lifting platform 12 through a cantilever 11, a lifting control mechanism 13 is arranged on a platform and controls the lifting platform to lift along the axial direction of a powder material guide pipe, a material door sleeve 14 is fixedly connected onto the lifting platform and sleeved on the powder material guide pipe, a conical body 15 is connected to the front end of a rotating shaft, the diameter of a large conical end of the conical body is larger than that of the powder material guide pipe and extends out of the outlet end of the powder material guide pipe, a gap is reserved between the circular conical surface of the conical body and the outlet end of the powder material guide pipe to form a discharge gap 16, and the circular conical body can uniformly diffuse material powder to the periphery of a material bag. When the discharging is stopped, namely in the initial state shown in fig. 1 and fig. 3 and at the end of the feeding, the lifting platform drives the material door sleeve to axially descend along the powder material guide pipe until the circular conical surface of the conical body plugs the discharging gap, and a packaging controller (not shown) is connected with and controls the transmission mechanism and the lifting control mechanism.
In order to stably lift the lifting platform, the lifting platform is arranged around the powder material guiding pipe, and at least two opposite sides of the powder material guiding pipe on the platform are respectively provided with a guide rod 17, in this embodiment: three guide rods 17 are uniformly arranged on the platform around the powder material guide pipe in an isosceles triangle shape, and the lifting platform is sleeved on the guide rods and is guided by the guide rods to lift along the axial direction of the powder material guide pipe.
Wherein: there are various lifting structure modes of the lifting platform, for example: the guide rod is a polished rod, and lifting control mechanism passes through the lifting hook control elevating platform and goes up and down on the polished rod, as this embodiment, the guide rod is the screw thread lever, the elevating platform passes through the nut 18 cover that sets up in the elevating platform on the guide rod, lifting control mechanism drives the threaded rod through motor and toothed belt 19 and rotates and then realize that the elevating platform goes up and down along powder passage axial.
In the examples: the scraper 20 is arranged on the inner side wall of the outlet end of the powder material guide pipe, the front end of the scraper is in contact with the conical surface of the conical body to clean powder residues on the conical surface of the conical body, powder on the surface of the closed-door cone is always kept from being accumulated and not agglomerated, and feeding accuracy is guaranteed. Wherein: in order to be even throw away the powder, the conical surface of cone ring is provided with many vertical oblique recesses side by side, and the degree of depth of recess is between 0.5 to 1mm, the powder is along with the rotatory vertical oblique recess of edge of cone throws to the material bag in, follows the conical surface of cone ring radially is provided with the ring recess, the ejection of compact gap shutoff that will have vertical oblique recess in the bin gate sleeve descends to the ring recess.
In order to accurately control the lifting of the lifting platform: a lifting platform displacement sensor is arranged between the lifting platform and the platform and used for measuring the powder filling height, a sensor signal is connected to the packaging controller, and the sensor can be a light-sensitive sensor or a magnetic ruler sensor arranged on the guide rod.
In the examples: the taper angle a of the conical body is controlled to be 90 to 120 degrees.
Example 2:
the embodiment is a discharging method of a conical discharging powder packaging machine based on embodiment 1, and the content of embodiment 1 should also be the content of the embodiment, so the packaging machine includes a powder material guiding pipe and a weighing mechanism, the powder material guiding pipe is vertically fixed on a platform, a rotating shaft is arranged in the powder material guiding pipe, a spiral feeding blade is fixed on the rotating shaft, a transmission mechanism is connected with the rotating shaft to drive the spiral feeding blade to rotate, the weighing mechanism is provided with a material bag clamping device, and the material bag clamping device is used for sleeving a material bag opening on an outlet of the powder material guiding pipe; the weighing mechanism is fixed on a lifting platform, the lifting control mechanism is arranged on a platform and controls the lifting platform to lift along the axial direction of a powder material guide pipe, a material door sleeve is fixedly connected to the lifting platform and sleeved on the powder material guide pipe, a conical body is connected to the front end of a rotating shaft, the diameter of the large conical end of the conical body is larger than that of the powder material guide pipe and extends out of the outlet end of the powder material guide pipe, a gap is reserved between the circular conical surface of the conical body and the outlet end of the powder material guide pipe to form a discharging gap, when discharging is stopped, the lifting platform drives the material door sleeve to descend along the axial direction of the powder material guide pipe until the discharging gap is plugged by the circular conical surface of the conical body, a packaging controller is connected and controls the transmission mechanism and the lifting control mechanism, a lifting platform displacement sensor is arranged between the lifting platform and used for measuring the filling height of powder, the displacement sensor is connected to the packaging controller through signals, and the packaging controller comprises a microprocessor, an input and output device surrounding the microprocessor and an interface.
The method comprises the following steps: the material bag clamping device sleeves the material bag on the outlet of the powder material guide pipe, the aperture of the material bag and the unit volume weight of the powder are input into the packaging controller, and the controller forms a relational expression of the weight of the material bag and the height of the powder in the material bag according to the input aperture of the material bag and the unit volume weight of the powder, for example: h = w/s, h is height, w is weight, and s is the cross-sectional area of the material bag; wherein the method further comprises:
the first step is as follows: firstly, setting a threshold value of the distance between an outlet of a powder material guide pipe and the surface of powder in a material bag in a packaging controller through an input device, wherein the threshold value can be 5cm for example, the outlet of the powder material guide pipe is lowered to the bottom in the material bag, meanwhile, a discharging gap is opened, and a spiral feeding blade is started to rotate to start to load the powder into the material bag;
the second step: determining the height of the powder in the material bag according to the relational expression, and adjusting the distance between the outlet of the powder material guide pipe and the surface of the powder in the material bag according to the threshold value;
the third step: repeating the second step until the weight reaches the set value and bagging is finished.
This action is equivalent to: the bottom of the material bag is lifted to the position close to the discharge port of the material guide pipe of the storage hopper by the lifting control mechanism in the filling process, the fall between the material and the material bag is reduced at the moment, the control mechanism slowly moves downwards along with the filling of the material, the fall between the discharge port and the material is always kept, and the splashing of the powder is controlled.
For good dust control, the method further comprises: and in the process of filling powder into the material bag, the threshold of the distance between the outlet of the powder guide pipe and the surface of the powder in the material bag and the rotation speed of the spiral feeding blade are adjusted by comparing the acquired dust concentration with the dust concentration threshold. For example: when the obtained dust concentration is higher than the dust concentration threshold, reducing the threshold of the distance between the outlet of the powder material guide pipe and the surface of powder in the material bag, or reducing the rotating speed of the spiral feeding blade, or simultaneously adjusting the outlet of the powder material guide pipe and the surface of the powder in the material bag; and when the obtained dust concentration is lower than the dust concentration threshold value, the rotating speed of the spiral feeding blade is increased, and the seasoning speed is accelerated.
In the examples: the taper angle a of the conical body is 90-120 degrees, a scraper is arranged on the inner side wall of the outlet end of the powder material guide pipe, and the front end of the scraper is in contact with the conical surface of the conical body ring and is used for cleaning powder residual matters on the conical surface of the conical body ring.
Claims (5)
1. A discharging method based on a conical discharging powder packaging machine comprises a powder material guide pipe and a weighing mechanism, wherein the powder material guide pipe is vertically fixed on a platform, a rotating shaft is arranged in the powder material guide pipe, a spiral feeding blade is fixed on the rotating shaft, a transmission mechanism is connected with the rotating shaft to drive the spiral feeding blade to rotate, the weighing mechanism is provided with a material bag clamping device, and a material bag opening is sleeved on an outlet of the powder material guide pipe; the weighing mechanism is fixed on a lifting platform, a lifting control mechanism is arranged on the platform and controls the lifting platform to lift along the axial direction of the powder material guide pipe, a material door sleeve is fixedly connected on the lifting platform and sleeved on the powder material guide pipe, a conical body is connected to the front end of the rotating shaft, the diameter of the large conical end of the conical body is larger than that of the powder material guide pipe and extends out of the outlet end of the powder material guide pipe, a gap is reserved between the circular conical surface of the conical body and the outlet end of the powder material guide pipe to form a discharging gap, when discharging is stopped, the lifting platform drives the material door sleeve to descend along the axial direction of the powder material guide pipe until the circular conical surface of the conical body plugs the discharging gap, a packaging controller is connected and controls the transmission mechanism and the lifting control mechanism, a lifting platform displacement sensor is arranged between the lifting platform and used for measuring the powder filling height, and the displacement sensor is connected to the packaging controller through signals;
a scraper is arranged on the inner side wall of the outlet end of the powder material guide pipe, and the front end of the scraper is in contact with the conical surface of the conical body ring to clean powder residual matters on the conical surface of the conical body ring;
the conical surface of the conical body ring is provided with parallel longitudinal inclined grooves, the powder is thrown out into a material bag along the longitudinal inclined grooves along with the rotation of the conical body, the annular grooves are radially arranged along the conical surface of the conical body ring, and the material door sleeve descends to the annular grooves to block a discharging gap;
the method comprises the following steps: the material bag clamping device sleeves a material bag at an outlet of the powder material guide pipe, the aperture of the material bag and the unit volume weight of the powder are input, and a relational expression of the weight of the material bag and the height of the powder in the material bag is formed according to the aperture of the input material bag and the unit volume weight of the powder, and the method is characterized by further comprising the following steps:
the first step is as follows: setting a threshold value of the distance between the outlet of the powder material guide pipe and the surface of powder in the material bag, descending the outlet of the powder material guide pipe to the bottom in the material bag, simultaneously opening a discharging gap, and starting a spiral feeding blade to rotate to start to fill the powder into the material bag;
the second step is that: determining the height of the powder in the material bag according to the relational expression, and adjusting the distance between the outlet of the powder material guide pipe and the surface of the powder in the material bag according to the threshold;
the third step: repeating the second step until the weight reaches a set value and bagging is finished;
and in the process of filling powder into the material bag, the threshold of the distance between the outlet of the powder guide pipe and the surface of the powder in the material bag and the rotation speed of the spiral feeding blade are adjusted by comparing the acquired dust concentration with the dust concentration threshold.
2. The method as claimed in claim 1, wherein the elevating platform is disposed around the powder material guiding tube, and the platform is provided with guide rods at least at two opposite sides of the powder material guiding tube, and the elevating platform is sleeved on the guide rods and is guided by the guide rods to ascend and descend along the axial direction of the powder material guiding tube.
3. The method as claimed in claim 2, wherein the guide rod is a threaded rod, the lifting platform is sleeved on the guide rod through a nut, and the lifting control mechanism drives the threaded rod to rotate through a motor so as to realize the axial lifting of the lifting platform along the powder material guide pipe.
4. The method of claim 1, wherein a lift table displacement sensor is provided between the lift table and the platform to measure the powder fill level, the displacement sensor being signally connected to the package controller.
5. The method of one of claims 1 to 4, wherein the taper angle of the cone is 90 to 120 degrees.
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| CN201710015367.4A CN106742111B (en) | 2017-01-10 | 2017-01-10 | Conical discharging powder packaging machine and discharging method |
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| CN203865023U (en) * | 2014-05-29 | 2014-10-08 | 成都锋范科技有限公司 | Precise micro powder packing machine |
| CN106240856A (en) * | 2016-08-26 | 2016-12-21 | 赛摩电气股份有限公司 | A kind of automatic Powder packaging system |
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