A hose flange conveyor belt and a method of manufacturing the same

Abstract

The present application relates to the technical field of conveying belt, and provides a hose flange conveying belt and a preparation method thereof.The hose flange conveying belt provided by the present application comprises a base belt and hose flanges arranged on both sides of the base belt; the hose flange is an arch-shaped structure and is made of PU or PVC.The present application arranges the hose flange on both sides of the base belt, which can prevent material from being stranded during transportation, prevent material from being left as debris, improve conveying efficiency, avoid pollution to subsequent material transportation, and prevent material from deviating from the travel route and falling from the side of the travel route of the conveying belt.The present application further provides a preparation method of the hose flange conveying belt, and the preparation method provided by the present application is simple in operation, high in automation, and easy to realize large-scale production.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt technology, and in particular to a flexible sidewall conveyor belt and its preparation method. Background Technology

[0002] With the increasing automation in the food industry, conveyor belts are used in all stages of material transportation. Due to the small size of food items, they are prone to deviating from their path during transport, sometimes falling off the conveyor belt and causing damage or even entering the equipment, disrupting its normal operation. To address this issue, skirted sidewall belts are currently available on the market. These belts have wavy, skirt-like sidewalls added to both sides to prevent materials from falling off during transport.

[0003] During use, skirted side guard belts have corrugated side guards that are bonded to both sides of the conveyor belt. On the one hand, materials are easily stuck in the recesses of the side guards during transportation, affecting the efficiency of material transportation. On the other hand, material debris is easily left at the corners of the side guards, making the conveyor belt difficult to clean and easily causing pollution to the transportation of subsequent materials. Summary of the Invention

[0004] In view of this, the present invention provides a flexible hose sidewall conveyor belt and its preparation method. The present invention provides flexible hose sidewalls on both sides of the conveyor belt, which can prevent material from accumulating during transportation, prevent material residue, improve conveying efficiency, and avoid contamination of subsequent material transportation.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A flexible hose sidewall conveyor belt includes a base belt and flexible hose sidewalls disposed on both sides of the base belt; the flexible hose sidewalls have an arched structure and are made of PU or PVC.

[0007] Preferably, the hose baffle is made of a film with a thickness of 1 to 3 mm.

[0008] Preferably, the height of the hose baffle is 10-30mm and the width is 10-25mm.

[0009] The present invention also provides a method for preparing the flexible sidewall conveyor belt described above, comprising the following steps:

[0010] Flexible hose sidewalls are fabricated on both sides of the base belt to obtain the flexible hose sidewall conveyor belt; the method for fabricating a single-sided flexible hose sidewall includes:

[0011] The film is preheated with infrared light; the film is a PU film or a PVC film.

[0012] The preheated film enters the groove of the grooved roller, and the film is shaped by vacuuming to obtain an arched film; the surface of the grooved roller is provided with a groove, and the cross-sectional shape of the groove is arched;

[0013] Hot air heating is used to bond the two ends of the arched film to the baseband.

[0014] Preferably, the infrared preheating temperature is 60–115°C.

[0015] Preferably, the vacuum pressure is 0.1 to 0.2 MPa.

[0016] Preferably, when the film is a PU film, the temperature of the hot air heating is 150-180°C; when the film is a PVC film, the temperature of the hot air heating is 165-195°C.

[0017] Preferably, the hot air heating is performed by a hot air gun, and the distance between the hot air gun and the arched PU film port is 10-30mm.

[0018] Preferably, the apparatus for preparing the flexible sidewall conveyor belt includes:

[0019] A grooved roller, wherein a groove is provided on the surface of the groove and the cross-sectional shape of the groove is arched, and the grooved roller is capable of vacuuming;

[0020] A conventional roller, wherein the conventional roller is tangentially arranged to the grooved roller;

[0021] A hot air gun, located near the tangent part between the conventional roller and the grooved roller;

[0022] Infrared heating device; the infrared heating device is located upstream of the grooved roller.

[0023] Preferably, the film is conveyed by a grooved roller, and during the conveying process, it is first preheated by an infrared heating device, and then reaches the grooved part of the grooved roller, where it is formed into an arch by vacuuming; the base tape is conveyed by a conventional roller, and the arched film and the base tape are laminated under the heating condition of a hot air gun.

[0024] This invention provides a flexible hose sidewall conveyor belt, comprising a base belt and flexible hose sidewalls disposed on both sides of the base belt; the flexible hose sidewalls have an arched structure and are made of PU or PVC. This invention provides flexible hose sidewalls on both sides of the base belt, which are bonded to both sides of the conveyor belt in a straight line without any recessed areas. This prevents material from accumulating during transportation, prevents material debris residue, improves conveying efficiency, avoids contamination of subsequent materials, and also prevents material from deviating from the path and falling off the sides of the conveyor belt.

[0025] The present invention also provides a method for preparing the flexible sidewall conveyor belt described in the above-mentioned scheme. The preparation method provided by the present invention is simple to operate, highly automated, and easy to achieve large-scale production. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the flexible hose sidewall conveyor belt provided by the present invention, wherein 1 is the base belt and 2 is the flexible hose sidewall;

[0027] Figure 2 This is a schematic diagram of the device for preparing the flexible sidewall conveyor belt; where 3 is a roller with an arched groove, 4 is a conventional roller, 5 is a hot air gun, and 6 is an infrared heating device. Detailed Implementation

[0028] The present invention provides a flexible hose sidewall conveyor belt, comprising a base belt and flexible hose sidewalls disposed on both sides of the base belt; the flexible hose sidewalls are arched structures and are made of PU or PVC.

[0029] The structural schematic diagram of the flexible hose sidewall conveyor belt provided by this invention is shown below. Figure 1 As shown below, in conjunction with Figure 1 Please provide a detailed explanation.

[0030] In this invention, the length direction of the hose baffle is parallel to the length direction of the base tape and extends through the entire base tape, and the two long sides of the hose baffle are bonded to the surface of the base tape.

[0031] In this invention, the hose baffle is made of a film, the thickness of which is preferably 1-3 mm. By controlling the film thickness to 1-3 mm, this invention ensures both a certain level of support and the ability to form an arched structure through vacuum suction, while also guaranteeing the tensile strength of the film after it is bonded to the base tape.

[0032] In this invention, the height of the hose baffle (i.e., the distance between the highest point of the arch and the baseband) is preferably 10-30 mm, more preferably 15-25 mm, and the width (i.e., the distance between the two long sides) is preferably 10-25 mm, more preferably 15-20 mm.

[0033] The present invention also provides a method for preparing the flexible sidewall conveyor belt described above, comprising the following steps:

[0034] Flexible hose sidewalls are fabricated on both sides of the base belt to obtain the flexible hose sidewall conveyor belt; the method for fabricating a single-sided flexible hose sidewall includes:

[0035] The film is preheated with infrared light; the film is a PU film or a PVC film.

[0036] The preheated film enters the groove of the grooved roller, and the film is shaped by vacuuming to obtain an arched film; the surface of the grooved roller is provided with a groove, and the cross-sectional shape of the groove is arched;

[0037] Hot air heating is used to bond the two ends of the arched PU film to the base tape.

[0038] This invention first preheats the film with infrared light. In this invention, the film is a PU film or a PVC film, and the thickness of the film is 1-3 mm. The infrared preheating temperature is preferably 60-115℃. Specifically, when the film is a PU film, the infrared preheating temperature is preferably 60-100℃, more preferably 80℃; when the film is a PVC film, the infrared preheating temperature is preferably 75-115℃, more preferably 95℃. This invention softens the film by infrared preheating, facilitating subsequent vacuum forming of an arch shape.

[0039] The preheated film enters the groove of the grooved roller, and is shaped into an arched film by vacuuming. In this invention, the surface of the grooved roller is provided with a ring of grooves, and the cross-sectional shape of the grooves is arched; the depth of the grooves is preferably 10-30mm, more preferably 15-25mm, and the width is preferably 10-25mm, more preferably 15-20mm; the grooved roller is capable of vacuuming. In a specific embodiment of this invention, the grooved roller has a hollow internal structure, and a rotary joint is provided on the roller's shaft end for connecting a vacuum pump. Multiple vacuuming holes are provided on the bottom surface of the groove of the roller, with the distance between adjacent vacuuming holes preferably 10mm. A slidable sealing patch is preferably provided in the hollow interlayer of the grooved roller, close to the bottom of the groove, and the sealing patch can withstand P... The vacuum hole at the contact point between the U-film and the groove is sealed. Before the softened film enters the groove, the sealing sheet slides against the bottom of the groove to seal the hole. When the film enters the groove, the sealing sheet slides away, at which point the PU film acts as a seal and is formed under vacuum conditions. When the film leaves the roller after forming, another set of sealing sheets seals the vacuum hole at the edge position. Subsequent softened films then enter the groove, repeating the above process to achieve continuous operation. In this invention, because the softened film has high fluidity, the sealing sheet is set to prevent the softened film from flowing into the vacuum hole. After the softened film enters the groove, it solidifies. At this time, the sealing sheet slides away, and the film is formed under vacuum.

[0040] In this invention, the vacuum pressure is preferably 0.1 to 0.2 MPa.

[0041] After the film is formed into an arch shape, the present invention uses hot air heating to bond the two ends of the arched film to the base tape. In this invention, when the film is a PU film, the temperature of the hot air heating is preferably 150-180℃, more preferably 160-170℃; when the film is a PVC film, the temperature of the hot air heating is preferably 165-195℃, more preferably 175-190℃; the hot air heating is preferably performed using a hot air gun, and the distance between the hot air gun and the arched film port is preferably 10-30mm, more preferably 15-25mm. By controlling the temperature and distance of the hot air heating within the above ranges, the present invention can ensure the bonding strength between the hose port and the base tape, while also ensuring that the hot air does not cause the film to overheat and deform.

[0042] In this invention, the apparatus for preparing the flexible sidewall conveyor belt includes:

[0043] A grooved roller, wherein a groove is provided on the surface of the groove and the cross-sectional shape of the groove is arched, and the grooved roller is capable of vacuuming;

[0044] A conventional roller, wherein the conventional roller is tangentially arranged to the grooved roller;

[0045] A hot air gun, located near the tangent part between the conventional roller and the grooved roller;

[0046] Infrared heating device; the infrared heating device is located upstream of the grooved roller.

[0047] A schematic diagram of the apparatus for preparing the flexible sidewall conveyor belt is shown below. Figure 2 As shown; the structure of the grooved roller will not be described in detail; the present invention has no special requirements for the conventional roller, hot air gun and infrared heating device, and those well known to those skilled in the art can be used.

[0048] In this invention, the number of grooved rollers is preferably 1 to 2. When the number of grooved rollers is 2, the two grooved rollers are arranged side by side according to the target position of the hose sidewall. The two grooved rollers operate at the same time, which can realize the synchronous preparation of hose sidewalls on both sides of the baseband.

[0049] In this invention, the preparation process using the aforementioned apparatus specifically includes the following steps: the film is conveyed via a grooved roller, preheated by an infrared heating device during the conveying process, and then reaches the grooved portion of the grooved roller, where a vacuum is applied to form an arch shape; the base tape is conveyed via a conventional roller, and the arched film and base tape are laminated under hot air gun heating conditions. This invention does not impose special requirements on the conveying speed of the film and base tape. In specific embodiments of this invention, it is preferable to adjust the speed according to the actual room temperature and the preheated state of the film, as long as the forming and heating lamination are achieved.

[0050] In this invention, the above method can be used to simultaneously prepare hose guards on both sides of the baseband (using two parallel grooved rollers), or the hose guard can be formed on one side of the baseband and then the same method can be used to prepare hose guards on the other side (using one grooved roller).

[0051] The technical solutions of this invention will be clearly and completely described below with reference to the embodiments thereof. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0052] Example 1

[0053] use Figure 2 The apparatus described in the paper prepares a flexible hose sidewall conveyor belt as follows: A 2mm thick PU sheet is conveyed through a grooved roller. During the conveying process, it is first preheated by an infrared heating device, and then reaches the grooved part of the grooved roller (the groove is 10cm deep and 20cm wide). An arch shape is formed by vacuuming. The infrared heating temperature is 80℃, and the vacuum pressure is 0.2MPa. The base belt is conveyed through a conventional roller. The distance between the hot air gun and the arched PU sheet end is controlled at 20mm. The arched PU sheet and the base belt are combined by heating with the hot air gun, thereby forming a flexible hose sidewall on one side of the base belt. The same method is used to form a flexible hose sidewall on the other side of the base belt, thus obtaining the flexible hose sidewall conveyor belt.

[0054] The heating temperature of the hot air gun was controlled at 150℃, 155℃, 165℃, 175℃ and 180℃ respectively. After the arched PU film and the base tape were laminated at the above temperatures, the tensile strength between the hose port and the base tape was tested and the appearance of the hose port was observed. The results are shown in Table 1.

[0055] Table 1. Test results of composite materials under different hot air gun temperatures.

[0056]

[0057] As can be seen from the results in Table 1, when composite materials are applied at temperatures between 150℃ and 180℃, both the hose end and the baseband exhibit high tensile strength and remain in good condition.

[0058] Example 2

[0059] use Figure 2The apparatus described in the paper prepares a flexible PVC sheet with sidewalls as follows: A 3mm thick PVC sheet is conveyed through a grooved roller. During the conveying process, it is first preheated by an infrared heating device, and then reaches the grooved part of the grooved roller (the groove is 10cm deep and 20cm wide). An arch shape is formed by vacuuming. The infrared heating temperature is 95℃, and the vacuum pressure is 0.2MPa. The base belt is conveyed through a conventional roller. The distance between the hot air gun and the arched PVC sheet port is controlled at 20mm. The arched PVC sheet and the base belt are bonded together by heating with the hot air gun, thereby forming a flexible PVC sheet with sidewalls on one side of the base belt. The same method is used to form flexible PVC sheet with sidewalls on the other side of the base belt, thus obtaining the flexible PVC sheet with sidewalls conveyor belt.

[0060] The heating temperatures of the hot air gun were controlled at 150℃, 165℃, 175℃, 190℃ and 195℃ respectively. After the arched PVC film and the base tape were laminated at the above temperatures, the tensile strength between the hose port and the base tape was tested and the appearance of the hose port was observed. The results are shown in Table 2.

[0061] Table 2. Test results of composite materials under different hot air gun temperatures.

[0062]

[0063]

[0064] As can be seen from the results in Table 2, when the hot air temperature is between 165℃ and 195℃, the tensile strength of both the hose end and the base tape is high, and the appearance is intact.

[0065] Food was transported using the flexible sidewall conveyor belts prepared in Examples 1 and 2, and the conveying effect was observed. The results showed that no material was stuck during the transport process, no material residue remained, and the material conveying route did not deviate.

[0066] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for preparing a flexible sidewall conveyor belt, characterized in that, The flexible hose sidewall conveyor belt includes a base belt and flexible hose sidewalls disposed on both sides of the base belt; the flexible hose sidewalls have an arched structure and are made of PU or PVC; the flexible hose sidewalls are made of film. The preparation method includes the following steps: Flexible hose sidewalls are fabricated on both sides of the base belt to obtain the flexible hose sidewall conveyor belt; the method for fabricating a single-sided flexible hose sidewall includes: The film is preheated with infrared light; the film is a PU film or a PVC film. The preheated film enters the groove of the grooved roller, and the film is shaped by vacuuming to obtain an arched film. The two ends of the arched film are bonded to the base tape by heating with hot air; the hot air heating is performed by a hot air gun. The apparatus for preparing the hose sidewall conveyor belt includes: A grooved roller, wherein a groove is provided on the surface of the groove and the cross-sectional shape of the groove is arched, and the grooved roller is capable of vacuuming; A conventional roller, wherein the conventional roller is tangentially arranged to the grooved roller; A hot air gun, located near the tangent part between the conventional roller and the grooved roller; An infrared heating device is disposed upstream of the grooved roller; The film is conveyed by a grooved roller. During the conveying process, it is first preheated by an infrared heating device and then reaches the grooved part of the grooved roller, where it is formed into an arch shape by vacuuming. The base tape is conveyed by a conventional roller, and the arched film and base tape are laminated under the heating condition of a hot air gun.

2. The preparation method according to claim 1, characterized in that, The thickness of the film is 1~3mm.

3. The preparation method according to claim 1, characterized in that, The height of the hose baffle is 10~30mm and the width is 10~25mm.

4. The preparation method according to claim 1, characterized in that, The infrared preheating temperature is 60~115℃.

5. The preparation method according to claim 1, characterized in that, When the film is a PU film, the temperature of the hot air heating is 150~180℃; when the film is a PVC film, the temperature of the hot air heating is 165~195℃.

6. The preparation method according to claim 1, characterized in that, The distance between the hot air gun and the arched film port is 10~30mm.

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