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Automatic unpacking and discharging method for granular materials

A technology of granular material and material package, which is applied in the field of automatic unpacking and unloading of granular material, which can solve the problems of waste of residual material, easy mixing of materials, and incomplete whereabouts of materials, so as to prevent waste of raw materials, speed up the discharge of residual materials, and reduce the cost of tools. The effect of consumption

Inactive Publication Date: 2021-06-25
中国计量大学上虞高等研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the granular material package, Italy has developed an automatic feeding and cutting system for the polymer particle material package, which uses a manipulator to move the material package to a special cutter head bag breaker, then puts the material bag down, and the material bag falls to the cutter head This system is easy to break the woven bag and cause the problem that the woven bag debris pollutes the raw material
Similarly, some domestic automatic unpacking devices also have this problem, such as Chinese patent CN2013102767140 and patent CN201510116184, both use saw blades or blades to destructively unpack bags, which is prone to bag debris
[0004] Chinese patent CN2015108873053 has improved this problem. When the bag is broken, the bag debris will not fall into the material pool with the material, but it still has the incomplete whereabouts of the material in the material bag, and it is easy to fall into the folds and corners of the material bag. The problem of residual material
However, Chinese patent 2016110411377 uses a magnetic needle as an unloading tool, and the needle moves up and down to make the bag vibrate to help discharge the residual material. Chinese patent 2017100372455 helps discharge the material by vibrating and beating the bag from the outside. These devices or methods were found in the test. The jitter produced in the process is better for square brick-shaped material packages, but its strength and effect are not good enough for ordinary non-stereo-formed material packages. Due to many folds, it is still easy to leave residues in some corners, especially in the stacked places. New methods of unpacking and unloading are therefore needed
[0005] It can be seen that the automatic unpacking and unloading device in the prior art often produces packaging bag debris, which is easily mixed into the material, and the incomplete whereabouts of the material causes the problem of waste of residual material

Method used

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  • Automatic unpacking and discharging method for granular materials
  • Automatic unpacking and discharging method for granular materials
  • Automatic unpacking and discharging method for granular materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, the present invention is based on the automatic unpacking and unpacking and unloading mechanism for granular materials, and the automatic unpacking and feeding device that uses the automatic unpacking and unpacking and unloading mechanism for granular materials includes: a bag transfer machine 4, a material unloading mechanism, a material collector 3, and a feeding mechanism 2 , bag receiving mechanism 5, material bag rack 6 and controller, wherein the unloading mechanism includes bag supporting mechanism 1, cutting mechanism 10 and folding mechanism 11.

[0056] The bag moving machine 4, the bag holding mechanism 1 and the bag receiving mechanism 5 are arranged in sequence, and the inverted cone collector 3 is located below the bag holding mechanism 1. The feeding mechanism 2 includes a feeding pipe 201, a feeding pump 202 and an upper feeding pipe 203, wherein the feeding pipe 201 receives the material from the cone bottom of the collector, ...

Embodiment 2

[0076] Different from Example 1, in this example, if Figure 2B As shown, when the bag 71 is transported to the first pole 9 and the second pole 8, its width direction is parallel to the poles.

[0077] The controller controls the cutting mechanism 10 to move the slider 14, and the blade 18 walks along the central axis of the two parallel bars of the second pole 8 to the other end, and cuts the material bag 71 from the width direction, and the granular material quickly passes through the cut. It falls, and at the same time, it drives the pockets on both sides of the cut to continue to separate to both sides. The controller controls the folding mechanism 11 folded on one side of the base to extend the support arm 21, move the support claw 24 to the center of the cutout of the material bag 71; insert the support claw 24 into the cutout in a closed state, and pass Two-way rotation of the supporting claw rotating shaft 22 to fold and unfold the material bag, during which, when th...

Embodiment 3

[0079] Such as Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, different from Embodiment 1, in this embodiment, a crochet mechanism is assembled at the end of the claw 24 . The crochet mechanism includes a crochet needle 30 and a crochet needle part 40 that cooperates with it. When the claws are deployed to a position close to both ends, the crochet needle 30 will penetrate into the material bag 71 and then the material bag 71 will be folded and unfolded in the process of shaking the bag. Hook.

[0080] The crochet needle 30 includes a crochet needle seat 301, a magnetic crochet needle body 302 and a needle point 303 distributed sequentially from the bottom to the head. The crochet needle seat 301 is in an inverted T shape, and the crochet needle body 302 is an arc-shaped rod body and matches the inner wall of the curved pipe 403 of the crochet needle ligand 40. The transition part between the needle tip 303 and the hook body 302 is c...

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Abstract

The invention discloses an automatic unpacking and discharging method for granular materials. The method comprises the steps that: a material bag is carried to a bag support mechanism, and a straight channel is arranged on the bag support mechanism; when the material bag is conveyed to a preset position, the bottom of the material bag is linearly cut and unpacked by adopting a cutting mechanism; a folding and unfolding mechanism is folded near a base thereof in an initial state, after the material bag is cut, the folding and unfolding mechanism acts, a pair of closed support claws is inserted into the material bag from a cutting opening of the material bag through the channel, the support claws stretch towards two ends to tension the material bag, and then pulse high-pressure airflow is sprayed from an exhaust hole in the tail end of each support claw to impact the wall of the material bag; and the residual materials are emptied by repeatedly and quickly folding and unfolding the pair of the support claws and spraying the airflow. According to the automatic unpacking and discharging device, automatic unpacking and discharging are achieved, and packaging bag debris pollution to the granular materials is avoided; and through folding, unfolding and bag lifting of a support frame, bag shaking is carried out through a pulse air blowing method, residual-free blanking is achieved, and raw material waste is prevented.

Description

technical field [0001] The invention relates to the field of automatic feeding in industrial production, in particular to an automatic unpacking and unloading method for granular materials. Background technique [0002] The main raw material for the production of plastics such as biaxially oriented film BOPP is polymer particle PP material, which is packed and transported in woven bags. At present, most of the feeding of granular materials in China is still done manually, and there are many disadvantages in manual feeding. First of all, manual feeding seriously reduces the degree of automation of the process, and manual unpacking is labor-intensive and prone to fatigue, resulting in unstable feeding speed, which is prone to problems that the manual speed cannot keep up with supporting equipment; secondly, material bag feeding and cutting is a heavy task. It is tedious manual labor, and it is difficult for manual feeding to be efficient and smooth all-weather. Therefore, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B69/00B65B57/20B65B57/14B65B35/24
CPCB65B69/0008B65B69/0033B65B69/0058B65B35/24B65B57/20B65B57/14
Inventor 邹细勇胡晓静赵黄海张建生陈亮杨凯
Owner 中国计量大学上虞高等研究院有限公司