Packaging machine

Abstract

The packaging machine comprises a supporting frame, a storage bin is arranged on the supporting frame, a discharging pipe is connected to the bottom of the storage bin, an electromagnetic valve is arranged in the discharging pipe, the electromagnetic valve is electrically connected with a controller, the outer wall of the discharging pipe is movably sleeved with a material receiving pipe, the bottom of the material receiving pipe is connected with a clamping sleeve, and the clamping sleeve is used for clamping a packaging bag. The outer wall of the material receiving pipe is connected with at least two suspension mechanisms, the tops of the suspension mechanisms are connected with tension sensors, the tension sensors are arranged on the side wall of the material storage bin, and the tension sensors are electrically connected with the controller.

Description

Technical Field

[0001] The present application relates to the technical field of packaging machinery, and in particular to a packaging machine. Background Art

[0002] A packaging machine is a type of machine that packages products for protection and aesthetics. There are many types of packaging machines, which are categorized by machine type into liquid packaging machines, powder packaging machines, and granule packaging machines. Existing packaging machines are generally semi-automated for packaging powder or granular materials. They clamp the packaging bag at the discharge port, fill the bag with the material, remove the bag, and heat-seal it to complete the packaging. During the filling process, it is necessary to ensure that the material is filled into the bag in equal amounts as much as possible. Currently, most semi-automated packaging machines rely on manual control of the discharge volume, which is subject to large human errors. Alternatively, they set a discharge time, but the discharge volume can still vary significantly due to the discharge state. Therefore, existing packaging machines have low control accuracy for the material packaging volume, resulting in uneven weights of packaged products. Utility Model Content

[0003] The main purpose of this application is to provide a packaging machine, aiming to solve the technical problem of low control accuracy of material packaging quantity by existing packaging machines.

[0004] To achieve the above-mentioned objectives, the present application provides a packaging machine, including a support frame, a material storage bin is provided on the support frame, a discharge pipe is connected to the bottom of the material storage bin, a solenoid valve is provided in the discharge pipe, the solenoid valve is electrically connected to a controller, a material receiving pipe is provided on the outer wall movable sleeve of the discharge pipe, a clamping sleeve is connected to the bottom of the material receiving pipe, the clamping sleeve is used to clamp the packaging bag, at least two suspension mechanisms are connected to the outer wall of the material receiving pipe, and tension sensors are connected to the tops of the suspension mechanisms, the tension sensors are all provided on the side walls of the material storage bin, and the tension sensors are all electrically connected to the controller.

[0005] Optionally, the hanging mechanism includes a connecting block connected to the outer wall of the material receiving pipe, the connecting block is connected to a hanging rope, and the other end of the hanging rope is connected to the bottom of the tension sensor.

[0006] Optionally, at least one vibrator is provided on the outer wall of the discharge pipe, and the vibrator is close to the solenoid valve.

[0007] Optionally, the outer wall of the material receiving tube is connected with a connecting rope, and the connecting rope is connected with an elastic elastic sleeve, and the elastic elastic sleeve is used to tighten the packaging bag onto the clamping sleeve.

[0008] Optionally, the clamping sleeve is provided with a circle of clamping grooves that cooperate with the elastic sleeve.

[0009] Optionally, a drive motor is provided on the top of the storage bin, the drive motor is connected to a rotating shaft extending into the storage bin, the rotating shaft extends into the discharge pipe and is connected to a plurality of scrapers distributed in a circular array, the scrapers are close to the inner wall of the discharge pipe and are located above the solenoid valve.

[0010] Optionally, the side wall of the rotating shaft is further connected to a plurality of stirring blades distributed in a ring array, and the stirring blades are located in the storage bin.

[0011] Optionally, a plurality of through holes are provided on the stirring blade.

[0012] Optionally, a conveyor is further included below the material receiving pipe, the conveyor is used to transport packaging bags containing materials, and a heat sealer is provided on one side of the conveyor, the heat sealer is used to seal the packaging bags on the conveyor.

[0013] Optionally, a feeding pipe is connected to the top of the storage bin.

[0014] The beneficial effects that this application can achieve are as follows:

[0015] The present application includes a support frame, on which a material storage bin is provided, a discharge pipe is connected to the bottom of the material storage bin, a solenoid valve is provided in the discharge pipe, the solenoid valve is electrically connected to a controller, a material receiving pipe is provided on the outer wall movable sleeve of the discharge pipe, a clamping sleeve is connected to the bottom of the material receiving pipe, the clamping sleeve is used to clamp the packaging bag, at least two suspension mechanisms are connected to the outer wall of the material receiving pipe, and tension sensors are connected to the tops of the suspension mechanisms, the tension sensors are all provided on the side walls of the material storage bin, and the tension sensors are all electrically connected to the controller. This application controls the discharge of materials in the storage bin through an electromagnetic valve. The materials enter the receiving pipe through the discharge pipe and finally enter the packaging bag. As the material in the packaging bag increases, the overall weight of the receiving pipe and the packaging bag suspended under the tension sensor by the suspension mechanism increases. Here, a threshold value can be set for the tension sensor according to the weight of the pre-loaded material in the packaging bag. When the tension sensor detects that the threshold value is reached, a signal can be sent to the controller, and the controller can control the electromagnetic valve to close quickly, that is, the material filling of the packaging bag is completed, and then it can be removed from the clamping sleeve and then covered with an empty packaging bag. This reciprocating process can accurately control the material packaging quantity each time with a small error range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a structural diagram of a packaging machine in an embodiment of the present application;

[0018] Figure 2 This is a schematic structural diagram of the connection portion between the discharge pipe and the receiving pipe in an embodiment of the present application.

[0019] Reference numerals:

[0020] 110-support frame, 120-storage silo, 130-discharge pipe, 140-solenoid valve, 150-controller, 160-material receiving pipe, 170-clamping sleeve, 171-clamping groove, 180-packaging bag, 190-suspension mechanism, 191-connecting block, 192-suspension rope, 210-tension sensor, 220-vibrator, 230-connecting rope, 240-elastic elastic sleeve, 250-drive motor, 260-rotating shaft, 270-scraper, 280-mixing blade, 281-through hole, 290-conveyor, 310-heat sealing machine, 320-feeding pipe.

[0021] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Example

[0027] Reference Figure 1-Figure 2 The present embodiment provides a packaging machine, including a support frame 110, on which a material storage bin 120 is provided, a discharge pipe 130 is connected to the bottom of the material storage bin 120, a solenoid valve 140 is provided in the discharge pipe 130, the solenoid valve 140 is electrically connected to a controller 150, a material receiving pipe 160 is movably sleeved on the outer wall of the discharge pipe 130, a clamping sleeve 170 is connected to the bottom of the material receiving pipe 160, the clamping sleeve 170 is used to clamp a packaging bag 180, at least two suspension mechanisms 190 are connected to the outer wall of the material receiving pipe 160, and a tension sensor 210 is connected to the top of each suspension mechanism 190. The tension sensors 210 are all provided on the side walls of the material storage bin 120, and the tension sensors 210 are all electrically connected to the controller 150.

[0028] In this embodiment, the discharge of the material in the storage bin 120 is controlled by the solenoid valve 140, and the material enters the material receiving pipe 160 through the discharge pipe 130 and finally enters the packaging bag 180. As the material in the packaging bag 180 increases, the overall weight of the material receiving pipe 160 and the packaging bag 180 suspended below the tension sensor 210 by the suspension mechanism 190 increases. Here, a threshold value can be set for the tension sensor 210 according to the weight of the pre-loaded material in the packaging bag 180. When the tension sensor 210 detects that the threshold value is reached, a signal can be sent to the controller 150, and the controller 150 can control the solenoid valve 140 to close quickly, that is, the material filling of the packaging bag 180 is completed, and then it can be removed from the clamping sleeve 170, and then the empty packaging bag 180 is put on. This reciprocating process can accurately control the material packaging quantity each time with a small error range.

[0029] It should be noted that the controller 150 may be a PLC controller of model S7-200, which has a fast response and meets the use requirements; the tension sensor 210 may be a tension and pressure sensor of model LSB302.

[0030] As an optional embodiment, the suspension mechanism 190 includes a connecting block 191 connected to the outer wall of the material receiving tube 160 , the connecting block 191 is connected to a suspension rope 192 , and the other end of the suspension rope 192 is connected to the bottom of the tension sensor 210 .

[0031] In this embodiment, the suspension rope 192 and the connecting block 191 can transmit the tension, so that the material receiving tube 160 is suspended below the tension sensor 210. Here, the suspension rope 192 should be set vertically to ensure the accuracy of the tension data.

[0032] As an optional embodiment, at least one vibrator 220 is provided on the outer wall of the discharge pipe 130 , and the vibrator 220 is close to the solenoid valve 140 .

[0033] In this embodiment, since the material passing through the solenoid valve 140 is likely to cause blockage when it is opened, the vibrator 220 can cause a certain vibration effect on the solenoid valve 140, so that the material can pass through the solenoid valve 140 smoothly, greatly reducing the risk of blockage.

[0034] As an optional embodiment, the outer wall of the material receiving tube 160 is connected with a connecting rope 230 , and the connecting rope 230 is connected with an elastic elastic sleeve 240 . The elastic elastic sleeve 240 is used to tightly wrap the packaging bag 180 onto the clamping sleeve 170 .

[0035] In this embodiment, when the packaging bag 180 needs to be installed on the clamping sleeve 170, the mouth of the packaging bag 180 can be put on the clamping sleeve 170, and then the elastic sleeve 240 can be manually stretched and put on the mouth of the packaging bag 180 on the clamping sleeve 170. After releasing your hand, the elastic sleeve 240 shrinks and clamps the mouth of the packaging bag 180 on the clamping sleeve 170. The installation operation is convenient and quick. When taking out the packaging bag 180, you can directly pull it down. Here, the elastic sleeve 240 is connected to the outer wall of the material receiving tube 160 by the connecting rope 230, which can prevent the elastic sleeve 240 from being lost and can be taken out when needed.

[0036] As an optional embodiment, the clamping sleeve 170 is provided with a clamping groove 171 which cooperates with the elastic elastic sleeve 240. The elastic elastic sleeve 240 can clamp the bag opening of the packaging bag 180 in the clamping groove 171, which can further prevent the packaging bag 180 from loosening and ensure a firm and stable clamping.

[0037] As an optional embodiment, a drive motor 250 is provided on the top of the storage bin 120, and the drive motor 250 is connected to a rotating shaft 260 extending into the storage bin 120. The rotating shaft 260 extends into the discharge pipe 130 and is connected to a plurality of scrapers 270 distributed in a circular array. The scraper 270 is close to the inner wall of the discharge pipe 130 and is located above the solenoid valve 140.

[0038] In this embodiment, in order to reduce the risk of material clogging in the discharge pipe 130, the driving motor 250 can be used to drive the rotating shaft 260 to rotate, thereby driving the scraper 270 to rotate, which can promote the discharge of materials in the discharge pipe 130 while also having a scraping effect on the inner wall of the discharge pipe 130, thereby preventing the material from adhering to the inner wall of the discharge pipe 130 and causing blockage, thereby ensuring smooth discharge of the material.

[0039] As an optional embodiment, the side wall of the rotating shaft 260 is also connected to a plurality of stirring blades 280 distributed in a circular array. The stirring blades 280 are located in the storage bin 120, so the stirring blades 280 are located above the scraper 270. When the rotating shaft 260 rotates, the stirring blades 280 also rotate, so that the material in the storage bin 120 can be discharged smoothly.

[0040] As an optional embodiment, a plurality of through holes 281 are provided on the stirring blade 280. When the stirring blade 280 rotates, part of the material can pass through the through holes 281, thereby reducing the resistance of the material to the stirring blade 280 and reducing the risk of the stirring blade 280 breaking.

[0041] As an optional embodiment, it also includes a conveyor 290 located below the material receiving pipe 160, the conveyor 290 is used to transport the packaging bags 180 containing materials, and a heat sealer 310 is provided on one side of the conveyor 290, the heat sealer 310 is used to seal the packaging bags 180 on the conveyor 290.

[0042] In this embodiment, after the packaging bag 180 is filled with a corresponding amount of material and removed, the packaging bag 180 is placed on the conveyor 290. The conveyor 290 transfers the packaging bag 180 from the bottom of the storage bin 120 to the outside, and then the packaging bag 180 is sealed by the heat sealing machine 310, thereby completing the entire packaging process.

[0043] As an optional embodiment, a feeding pipe 320 is connected to the top of the storage bin 120. The material can be transported into the storage bin 120 through the feeding pipe 320 and the material pump, which can prevent material dust from spreading and polluting the workshop working environment.

[0044] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A packaging machine, characterized in that: It includes a support frame, on which a material storage bin is provided, a discharge pipe is connected to the bottom of the material storage bin, a solenoid valve is provided in the discharge pipe, the solenoid valve is electrically connected to a controller, a material receiving pipe is provided on the outer wall of the discharge pipe, a clamping sleeve is connected to the bottom of the material receiving pipe, the clamping sleeve is used to clamp the packaging bag, at least two suspension mechanisms are connected to the outer wall of the material receiving pipe, the tops of the suspension mechanisms are connected to tension sensors, the tension sensors are all provided on the side walls of the material storage bin, and the tension sensors are all electrically connected to the controller.

2. A packaging machine according to claim 1, characterized in that: The suspension mechanism includes a connection block connected to the outer wall of the material receiving pipe, the connection block is connected to a suspension rope, and the other end of the suspension rope is connected to the bottom of the tension sensor.

3. A packaging machine according to claim 1, characterized in that: At least one vibrator is provided on the outer wall of the discharge pipe, and the vibrator is close to the solenoid valve.

4. A packaging machine according to any one of claims 1 to 3, characterized in that: The outer wall of the material receiving tube is connected with a connecting rope, and the connecting rope is connected with an elastic elastic sleeve. The elastic elastic sleeve is used to tightly cover the packaging bag on the clamping sleeve.

5. A packaging machine according to claim 4, characterized in that: The clamping sleeve is provided with a circle of clamping grooves which cooperate with the elastic sleeve.

6. A packaging machine according to claim 1, characterized in that: A drive motor is provided on the top of the storage bin, and the drive motor is connected to a rotating shaft extending into the storage bin. The rotating shaft extends into the discharge pipe and is connected to a plurality of scrapers distributed in a circular array. The scrapers are close to the inner wall of the discharge pipe and are located above the solenoid valve.

7. A packaging machine according to claim 6, characterized in that: The side wall of the rotating shaft is also connected to a plurality of stirring blades distributed in a ring array, and the stirring blades are located in the storage bin.

8. A packaging machine according to claim 7, characterized in that: A plurality of through holes are provided on the stirring blade.

9. A packaging machine according to claim 1, characterized in that: It also includes a conveyor located below the material receiving pipe, the conveyor is used to transport packaging bags containing materials, and a heat sealer is provided on one side of the conveyor, the heat sealer is used to seal the packaging bags on the conveyor.

10. The packaging machine according to claim 1, characterized in that: The top of the storage bin is connected with a feeding pipe.

Images