CN113637315A

CN113637315A - Middle tooth type wireless core conveyor belt

Info

Publication number: CN113637315A
Application number: CN202110849115.8A
Authority: CN
Inventors: 丁友山; 刘晶晶
Original assignee: Shanghai Yongli Conveying System Co ltd
Current assignee: Shanghai Yongli Conveying System Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-11-12

Abstract

The invention provides a middle-placed tooth type wireless core conveyor belt which comprises the following raw materials in percentage by mass: 96-98.5% of polyether TPU, 1-3% of silicone master batch and 0.5-1% of glass microsphere; wherein, the raw materials are fully dried after being mixed, the dried material is directly fed into a screw extruder for plasticizing, and the extrusion temperature of a die head is 215-225 ℃; the mixed materials are extruded and rolled and then are molded at one time. The invention completely avoids the problem that the product is polluted by the leakage of the wire core after the wire core is abraded possibly brought by the wire core conveyor belt products in the current market; in addition, the chain wheel is matched for use, tensioning is not needed, all-dimensional re-operation without disassembling can be realized, and water consumption is saved by about 40-50% compared with that of the traditional conveyor; in the lifting conveying process, because the tooth form is positioned at the middle position of the conveying belt, two sides of the conveying belt, which are in contact with the supporting strip, are planes, so that the abrasion is reduced, and the risk of shaking and falling of materials is avoided; during operation, heat will be generated automatically to maintain the belt body temperature above the TG of the material.

Description

Middle tooth type wireless core conveyor belt

Technical Field

The invention relates to a middle-placed tooth type wireless core conveyor belt, and belongs to the field of wireless core conveyor belts for slaughtering, lifting and conveying large-scale livestock.

Background

Along with the improvement of living standard, people are to the demand of large-scale livestock meat such as pork, beef constantly increasing to promote the automation level of this type of processing enterprise constantly promotes, simultaneously because there are a large amount of grease and crushed aggregates in cutting apart the workshop section, consequently, have proposed higher requirement to the conveyer belt as the assembly line operation panel, need big load, easy cleanness just accords with food hygiene requirement, can not have any pollution risk, and the reduction microorganism that will furthest breezes. Meanwhile, in order to fully utilize the field, a plurality of lifting conveying devices are involved in the assembly line.

In the promotion in-process, the conveyer belt reverse side needs to have the ultra high molecular weight polyethylene to hold in the palm the strip and support, and conventional no sinle silk domestic animal slaughters the area bottom surface tooth and runs through whole cross section, and is discontinuous, can produce the shake with holding in the palm the strip wearing and tearing seriously and the non-planar transportation in-process of bottom surface easily in the use to lead to the transported substance material unstability, simultaneously in the meat course of working, involve a large amount of the condition of operation in the low temperature freezer, have certain requirement to the pliability of conveyer belt under low temperature environment.

Disclosure of Invention

Aiming at the problems in the prior art, the middle tooth type wireless core conveyor belt provided by the invention has the characteristics of easiness in disassembly and washing, antibiosis, stable transportation and the like.

The technical scheme provided by the invention is as follows:

the middle tooth type coreless conveyor belt comprises the following raw materials in percentage by mass: 96-98.5% of polyether TPU, 1-3% of silicone master batch and 0.5-1% of glass microsphere;

wherein, the raw materials are fully dried after being mixed, and the dried material is extruded and rolled and then is formed in one step; specifically, the plasticizing can be carried out by a screw extruder, and the extrusion temperature of a die head is 215-225 ℃.

Preferably, the polyether TPU is selected from the group consisting of food grade required polyether TPU materials with hardness of Shore D50-55.

Preferably, the diameter of the nano glass microsphere is 100-200 nm.

Preferably, the water content of the mixed raw material after drying is less than 200 ppm.

Preferably, the thickness of the bottom plate of the conveyor belt is 2.9-3.1mm or 3.9-4.1mm, and the total thickness is 10.6mm + -0.2 mm (intermediate belt tooth thickness) or 11.6mm + -0.2 mm (intermediate belt tooth thickness).

Preferably, in order to reduce abrasion in the using process, the ultra-high molecular weight silicone master batch taking polyether type TPU as a base material is added to improve the abrasion resistance, the content of the ultra-high molecular weight silicone master batch in the base material is 50%, the addition amount is 1% -3%, meanwhile, the master batch meets FDA food grade standards, and the abrasion resistance can be improved by 15% -20%.

Preferably, in order to ensure the flexibility of the conveyor belt at low temperature, nano-scale glass microspheres are added as a filler, and in the process of running and winding of the synchronous belt, the glass microspheres and TPU molecular chains rub with each other to generate heat, so that the temperature of the synchronous belt is maintained above TG, and the synchronous belt can be used at low temperature.

Preferably, the polyether material has the functions of resisting damp and heat and inhibiting the growth of mold, can well meet the sanitary requirement of daily washing, and ensures that the mechanical property of a conveyor belt product is not influenced.

In order to match with lifting requirements, the surface of the conveying belt needs to be matched with a baffle and a skirt edge, the skirt edge is prepared by casting polyether TPU (thermoplastic polyurethane) material of shoreA85, and the thickness of the skirt edge is 1.3mm-2 mm; the baffle is made of shoreA85 polyether TPU material through an injection molding process (the size accuracy of the product is ensured); the baffle is divided into a straight baffle and a bent baffle according to actual requirements.

The invention has the beneficial effects that:

1. the conveyor belt product without pollution is provided for large livestock slaughtering and conveying, and the problem that the product is polluted due to the fact that the wire core leaks outside after being abraded and possibly brought by the conveyor belt product with the wire core in the current market is completely avoided.

2. This conveyer belt of a section satisfies food level standard, prevents that the microorganism from breeding, satisfies the cleaning requirement every day.

3. The conveyor belt is matched with the chain wheel for use, tensioning is not needed, all-dimensional cleaning without disassembling can be realized, and water consumption is saved by about 40% -50% compared with that of a traditional conveyor.

4. This kind of conveyer belt is because the profile of tooth is located the conveyer belt position between two parties in promoting the transport, and the conveyer belt is the plane with the both sides of holding in the palm the strip contact, has reduced wearing and tearing and has avoided the material shake risk of dropping simultaneously.

5. The conveyor belt can generate heat automatically during the running process, and the temperature of the belt body is maintained to be higher than the material TG.

6. The raw material of the conveyor belt does not contain fabric, so that the pollution of the fiber is completely avoided.

7. The manufactured TPU conveyor belt with the stable pitch is matched with a gear for transmission, so that the problems of tooth jumping, slipping and influence on operation caused by pitch change are avoided.

Drawings

FIG. 1 is a schematic view of a mid-set tooth type wireless core conveyor belt according to the present invention;

FIG. 2 is a side view of the finished product provided in example 1 of the present invention;

FIG. 3 is a front view of a finished product provided in example 1 of the present invention;

FIG. 4 is a top plan view of the finished product provided in example 1 of the present invention;

fig. 5 is a schematic view of a straight baffle provided in embodiment 1 of the present invention;

FIG. 6 is a schematic view of a bending baffle according to embodiment 1 of the present invention;

fig. 7 is a schematic view of a centrally toothed coreless conveyor belt according to embodiment 1 of the present invention;

fig. 8 is a schematic view of a central toothed coreless conveyor belt according to embodiment 1 of the present invention.

Detailed Description

The present invention will be further specifically described with reference to the drawings and examples.

Example 1

As shown in FIGS. 1 to 8, 3% of the ultra-high molecular weight silicone master batch using TPU as a base material and 1% of nano glass microspheres (diameter 100-200 nm) are added into 96% of the polyether TPU with hardness of Shore D50-55, wherein, the content of the ultra-high molecular weight silicone master batch in the TPU substrate is 50 percent, thereby improving the abrasion resistance of the conveyor belt by 15 to 20 percent, the TPU substrate is fully dried after being mixed until the water content is less than 200ppm, the dried material is directly fed into a screw extruder for plasticizing, the extrusion temperature of a die head is 215 to 225 ℃, the plasticized TPU material is molded on a tooth-shaped roller by a certain pressure given by a steel belt, and the final product is prepared by cooling and shaping, namely, the conveyer belt with the base plate with the thickness of 2.9-3.1mm or 3.9-4.1mm and the total thickness of 10.6mm +/-0.2 mm (the thickness of the intermediate belt teeth) or 11.6mm +/-0.2 mm (the thickness of the intermediate belt teeth) can be manufactured according to the die.

In this embodiment, this conveyer belt includes integrated into one piece's bottom plate and a plurality of teeth of a cogwheel, and a plurality of teeth of a cogwheel interval sets up in the bottom surface of bottom plate, and a plurality of teeth of a cogwheel are used for with drive mechanism meshing, and the top surface of bottom plate is used for the material to carry, and wherein the distance between each teeth of a cogwheel is 39.5 +/-0.2 mm, and teeth of a cogwheel length is 78 mm.

In the embodiment, the surface of the conveying belt is matched with a baffle and a skirt edge, the skirt edge is prepared by casting a polyether TPU (thermoplastic polyurethane) material of shoreA85, and the thickness of the skirt edge is 1.3-2 mm; the baffle is made of shoreA85 polyether TPU material through an injection molding process (the size accuracy of the product is ensured); the baffle is divided into a straight baffle and a bent baffle according to actual requirements.

As shown in fig. 5, the width b of the bottom of the straight baffle is 14 ± 0.1mm, the width t of the straight baffle is 6 ± 0.1mm, and the height h of the straight baffle is 30-120mm (the height is different in specification by 10mm depending on the grinding tool).

As shown in fig. 6, the bending baffle is shown, the width b of the bottom of the bending baffle is 14 ± 0.1mm, the width t of the bending baffle is 6 ± 0.1mm, and when the height h is 50 mm or 70mm, the length C of the bending part is 30 mm; when the height h is 90 mm or 110mm, the length C of the bent part is 40 mm.

In this embodiment, the conveyer belt is cooperation sprocket transport when specifically installing and using, avoids full tension state to realize not dismantling the purpose that the machine washed easily.

Example 2

The difference between this example and example 1 is that, in 98.5% of polyether TPU with hardness of Shore D50-55, 1% of ultra-high molecular weight silicone master batch with TPU as base material is added, and 0.5% of nano glass microspheres (diameter 100-200 nm) are added.

Example 3

The preparation method of the conveyor belt comprises the following steps:

step S1: adding an ultrahigh molecular weight silicone master batch taking TPU as a base material into the polyether TPU, and adding a nano glass microsphere with the diameter of 100-200 nm;

step S2: drying the mixture obtained in the step S1 through a dehumidification dryer until the water content is less than 200 ppm;

step S3: feeding the dried mixture obtained in the step S2 into a screw extrusion device to fully mix the raw materials in a screw for plasticizing and molding;

step S4: and (S3) applying pressure of 10-12 Mpa to the plasticized material on the toothed roller through a steel belt, and cooling and shaping the conveyor belt through a cooling roller to obtain the middle-set toothed wireless core conveyor belt.

In step S3, among others: the temperature of the screw is between 180 and 220 ℃, and the temperature of the cooling roller in the step S4 is between 20 and 30 ℃.

Claims

1. The middle-placed tooth type wireless core conveyor belt is characterized by comprising the following raw materials in percentage by mass: 96-98.5% of polyether TPU, 1-3% of silicone master batch and 0.5-1% of glass microsphere;

the raw materials are fully dried after being mixed, and the dried material is extruded and calendered and then is formed at one time.

2. The centrally-located, toothed wireless core belt according to claim 1, wherein the extrusion temperature is 215-225 ℃.

3. The centrally-located, toothed, wireless core conveyor belt according to claim 1, wherein the polyether TPU is selected from food grade hardnesses of shore d 50-55.

4. The centrally-located toothed wireless core belt according to claim 1, wherein the diameter of the nano-glass microspheres is 100 nm and 200 nm.

5. The centrally-mounted toothed wireless core belt according to claim 1, wherein the moisture content of the mixed raw material is less than 200ppm after drying.

6. The centrally-located, wireless core belt of claim 1, wherein the belt floor is 2.9-3.1mm or 3.9-4.1mm thick.

7. The centrally-located, wireless core belt of claim 1, wherein the overall belt thickness is 10.6mm ± 0.2mm or 11.6mm ± 0.2 mm.

8. The middle-set tooth type wireless core transmission belt according to claim 1, wherein the silicone master batch is an ultra-high molecular weight silicone master batch using polyether type TPU as a base material, and the content of the ultra-high molecular weight silicone master batch in the base material is 50%.

9. The centrally-located, wireless core conveyor belt of claim 1, wherein the conveyor belt surface is adapted to be used with a baffle and skirt.

10. The centrally-located, toothed, wireless core belt of claim 1, wherein the baffle comprises a straight baffle or a bent baffle.