A rubber conveyor belt surface modification slurry formula and grinding device for processing thereof

Abstract

The invention is applicable to the field of conveyor belt processing equipment, and provides a rubber conveyor belt surface modification mortar formula, comprising 80-100 parts by weight of elastomer, 3 parts by weight of zinc oxide, 1.5 parts by weight of stearic acid, 1 part by weight of antioxidant 264, 1 part by weight of accelerator NOBS, 2.5 parts by weight of accelerator TT, 40 parts by weight of white carbon black, 30 parts by weight of barium sulfate, 20 parts by weight of calcium carbonate, 3 parts by weight of diethylene glycol and 5 parts by weight of oil, thereby the present invention has the characteristics of small elongation, good impact resistance, tear resistance and high strength.

Description

Technical Field

[0001] The invention relates to the field of conveyor belt processing equipment, and in particular to a rubber conveyor belt surface modification slurry formula and a grinding device for processing the same. Background Art

[0002] The common plastic conveyor belt processing process now generally requires processes such as mixing, tableting, vulcanization, and grinding. Among them, the conveyor belt is ground to treat the surface of the conveyor belt on the one hand, and to make the thickness of the conveyor belt uniform on the other hand (thinning the thicker parts of the conveyor belt).

[0003] The existing rubber conveyor belts have poor ductility, which causes the product to break easily during use, so it is necessary to adjust the raw material formula of the rubber conveyor belts.

[0004] At the same time, in the existing equipment, the conveyor belt is polished by a grinding disc. During the grinding process, the rotating grinding disc uses its uneven surface structure to grind the conveyor belt, and a large amount of rubber particles are dispersed in the air. These rubber particles cause a waste of resources (which can be recycled) on the one hand, and lead to a poor working environment of the equipment on the other hand.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0006] In view of the above-mentioned defects, the object of the present invention is to provide a grinding device for conveyor belt processing, which can recover rubber particles scattered in the air through a cover body that can generate negative pressure, and cool the recovered rubber particles by blowing out cooling airflow through heat dissipation ports arranged in the cover body, so as to prevent the rubber particles from adhering to the inner wall of the pipe and affecting the transmission process.

[0007] In order to achieve the above object, the present invention provides a rubber conveyor belt surface modification mortar formula, including 80-100 weight parts of elastomer, 3 weight parts of zinc oxide, 1.5 weight parts of stearic acid, 1 weight part of antioxidant 264, 1 weight part of accelerator NOBS, 2.5 weight parts of accelerator TT, 40 weight parts of white carbon black, 30 weight parts of barium sulfate, 20 weight parts of calcium carbonate, 3 weight parts of diethylene glycol and 5 weight parts of oil.

[0008] According to the rubber conveyor belt surface modification mortar formula of the present invention, the elastomer is one or more of thermoplastic polyurethane, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, liquid polyisoprene rubber, styrene-butadiene rubber, natural rubber, butadiene rubber, ethylene propylene diene rubber, nitrile rubber, chloroprene rubber, and chlorosulfonated polyethylene rubber.

[0009] The present invention provides a grinding device for conveyor belt processing, comprising a fixed worktable and a sliding worktable slidably mounted on the fixed worktable; a conveyor belt transmission device for supporting and driving the conveyor belt is mounted on the fixed worktable, and a grinding device is mounted on the sliding worktable; the conveyor belt transmission device comprises an active roller and a driven roller rotatably mounted on the fixed worktable; the sliding worktable can drive the grinding device to reciprocate along the main axis direction of the active roller; a recovery device for recovering rubber particles is mounted above the fixed worktable, the recovery device comprises a cover body, a recovery pipe connected to the cover body, and an air intake pipe; the other end of the recovery pipe is connected to a residual material recovery device that can generate negative pressure suction; a heat dissipation port is arranged in the cover body, and the heat dissipation port is communicated with the air intake pipe.

[0010] According to the grinding device for conveyor belt processing of the present invention, the long side direction of the cover body extends along the main axis direction of the active roller and covers the grinding area where the grinding device is located.

[0011] According to the grinding device for conveyor belt processing of the present invention, the recovery pipe, the air intake pipe and the heat dissipation port are provided in plurality and are evenly spaced and distributed inside the cover body.

[0012] According to the grinding device for conveyor belt processing of the present invention, an adjustment bracket for supporting the driven roller is provided on one side of the fixed workbench; the adjustment bracket is provided with a plurality of groups of slots in a direction perpendicular to the axis of the active roller, and the end of the driven roller is correspondingly inserted into one of the groups of slots.

[0013] According to the grinding device for conveyor belt processing of the present invention, the heat dissipation port is provided with an adjustment structure for adjusting the air outlet flow rate of the heat dissipation port; the adjustment structure includes a baffle for adjusting the flow rate of the heat dissipation port; during adjustment, when the grinding device moves to the corresponding heat dissipation port position, the overlapping area of ​​the baffle and the heat dissipation port is; when the grinding device moves to the heat dissipation port in a dislocated state, the overlapping area of ​​the baffle and the heat dissipation port is 60% to 80%.

[0014] According to the present invention, the area of ​​the baffle of the conveyor belt processing grinding device accounts for 60% to 80% of the heat dissipation port. When the grinding device moves to the heat dissipation port in a dislocated state, the baffle is located at the center of the heat dissipation port.

[0015] According to the grinding device for conveyor belt processing of the present invention, a paddle is provided on one side of the baffle, and a predetermined middle position of the paddle is hinged to one side of the heat dissipation port; an end of the paddle away from the baffle extends outside the cover; and a driving component for driving the paddle to move is provided on the grinding device.

[0016] The present invention provides a grinding device for conveyor belt processing, comprising a fixed workbench and a sliding workbench slidably installed on the fixed workbench, wherein a guide rail structure is arranged at a position of the fixed workbench corresponding to the installation position of the sliding workbench, and the sliding workbench is slidably installed on the guide rail structure; a conveyor belt transmission device for supporting and driving the conveyor belt is installed on the fixed workbench, wherein the conveyor belt transmission device comprises an active roller and a driven roller rotatably installed on the fixed workbench, and the conveyor belt to be ground is sleeved between the two; the active roller is driven by a driving component to rotate, and in the process of transmitting the conveyor belt, the rotating active roller utilizes the friction between the components to drive the conveyor belt for transmission, and the driven roller is mainly used as a tensioning device to adjust the tension of the conveyor belt to ensure normal transmission. The driven roller can be supported by a cantilever beam (supported by one end and suspended by the other end), or the mounting structure in this embodiment. An adjustment bracket for supporting the driven roller is provided on one side of the fixed workbench; the adjustment bracket includes a pair of support platforms, and the support platform is provided with a plurality of groups of slots in a direction perpendicular to the axis of the active roller, and the end of the driven roller is correspondingly inserted into one of the groups of slots. By inserting the driven roller into the slots at different positions, the distance between the driven roller and the active roller can be adjusted, and the length of the conveyor belt with different inner diameters can be adapted, thereby increasing the versatility of the equipment. The driven roller is supported by a pair of support platforms, which ensures the force balance of the driven roller on the one hand, and facilitates the replacement of its parts if the driven roller is bent and deformed on the other hand. The present invention recovers the rubber particles scattered in the air through a cover body that can generate negative pressure, and cools the recovered rubber particles by blowing out cooling air through a heat dissipation port provided in the cover body, thereby preventing the rubber particles from adhering to the inner wall of the pipeline and affecting the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is another angle schematic diagram of the present invention;

[0019] Figure 3 It is a working schematic diagram of the present invention;

[0020] Figure 4 yes Figure 3 A magnified view of part A;

[0021] Figure 5 It is a structural diagram of the paddle and baffle;

[0022] Figure 6 yes Figure 5 Working status diagram;

[0023] In the figure, 1-fixed workbench, 11-active roller, 12-driven roller, 2-sliding workbench, 3-grinding device, 4-cover, 41-heat dissipation port, 5-recovery pipe, 6-air intake pipe, 7-adjustment bracket, 71-slot, 8-baffle, 81-paddle, 101-recovery bin, 102-filter bag, 103-circulation pump. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The present invention provides a conveyor belt processing technology and formula, and the conveyor belt processing technology and formula include:

[0026] 1. Rubber mixing: Mix the rubber raw material with various additives and mix them in a mixer to make the rubber material have certain plasticity and ductility, wherein the rubber raw material is 80-100 parts by weight of an elastomer, and the elastomer is one or more of thermoplastic polyurethane, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, liquid polyisoprene rubber, styrene-butadiene rubber, natural rubber, butadiene rubber, EPDM rubber, nitrile rubber, chloroprene rubber, and chlorosulfonated polyethylene rubber. Other additives include 3 parts by weight of zinc oxide, 1.5 parts by weight of stearic acid, 1 part by weight of antioxidant 264, 1 part by weight of accelerator NOBS, 2.5 parts by weight of accelerator TT, 40 parts by weight of white carbon black, 30 parts by weight of barium sulfate, 20 parts by weight of calcium carbonate, 3 parts by weight of diethylene glycol, and 5 parts by weight of oil.

[0027] 2. Calendering: The mixed rubber material is calendered through a calender to make it into a rubber blank of a certain size and thickness.

[0028] 3. Cutting: Cut the rubber blank into required length and width.

[0029] 4. Fabric layer: The cut rubber blanks are stacked according to a certain pattern to form a multi-layer structure.

[0030] 5. Molding: Put the multi-layer rubber blank into the mold for molding to make it into a conveyor belt with a certain shape and size.

[0031] 6. Vulcanization: Put the molded conveyor belt into the vulcanization tank for vulcanization treatment to make it have certain wear resistance and corrosion resistance.

[0032] 7. Post-processing: The vulcanized conveyor belt is subjected to post-processing procedures such as trimming, cleaning, and painting to meet the final use requirements.

[0033] See also Figure 1 , Figure 2 and Figure 3 The present invention also provides a grinding device for conveyor belt processing, which comprises a fixed worktable 1 and a sliding worktable 2 slidably mounted on the fixed worktable 1, wherein the fixed worktable 1 is provided with a guide rail structure at a position corresponding to the mounting position of the sliding worktable 2, and the sliding worktable 2 is slidably mounted on the guide rail structure; a conveyor belt transmission device for supporting and driving the conveyor belt is mounted on the fixed worktable 1, wherein the conveyor belt transmission device comprises an active roller 11 and a driven roller 12 rotatably mounted on the fixed worktable 1, and the conveyor belt to be ground is sleeved between the two; the active roller 11 is driven by a driving component to rotate, and in the process of transmitting the conveyor belt, the rotating active roller 11 utilizes the friction between the components to drive the conveyor belt for transmission, and the driven roller 12 is mainly used as a tensioning device to adjust the tension of the conveyor belt to ensure normal transmission. The driven roller 12 can use a cantilever beam support structure (supported by one end and the other end is suspended), or can use the installation structure in this embodiment. Specifically, in this embodiment, an adjustment bracket 7 for supporting the driven roller 12 is provided on one side of the fixed workbench 1; the adjustment bracket 7 includes a pair of support platforms, which are provided with a plurality of groups of slots 71 in a direction perpendicular to the axis of the active roller 11, and the end of the driven roller 12 is correspondingly inserted into one of the groups of slots 71. By inserting the driven roller 12 into the slots 71 at different positions, the distance between the driven roller 12 and the active roller 11 can be adjusted, and the length of the conveyor belt with different inner diameters can be adapted, thereby increasing the versatility of the equipment. By supporting the driven roller 12 with a pair of support platforms, on the one hand, the force balance of the driven roller 12 is ensured, and on the other hand, if the driven roller 12 is bent and deformed, its parts can be easily replaced.

[0034] Preferably, in order to optimize the fixing effect of the slot 71 on the driven roller 12 , the slot 71 is an inclined slot structure, and the extending direction of the slot 71 from the bottom to the top is toward a direction away from the fixed workbench 1 .

[0035] See also Figure 1 and Figure 3, a grinding device 3 is installed on the sliding workbench 2, and the grinding device 3 can be a traditional disc grinder driven by a motor; the sliding workbench 2 can drive the grinding device 3 to reciprocate along the main axis direction of the active roller 11, and the movement process of the sliding workbench 2 can be driven by a motor or adjusted manually (for the existing structure). During the specific grinding process, the working end face of the grinding device 3 is in contact with the surface to be ground of the conveyor belt, the conveyor table transmission device drives the conveyor belt to drive, and the sliding workbench 2 drives the grinding device 3 to reciprocate along the main axis direction of the active roller 11 to achieve the grinding work. Preferably, the rotation direction of the disc grinder is opposite to the transmission direction of the conveyor belt to optimize the grinding efficiency.

[0036] See also Figure 1 , Figure 3 , Figure 4 A recycling device for recycling rubber particles is installed above the fixed workbench 1, and the recycling device includes a cover body 4, a recycling pipe 5 connected to the cover body 4, and an air intake pipe 6, wherein the structure of the cover body 4 can be set as needed. Specifically, in this embodiment, the long side direction of the cover body 4 extends along the main axis direction of the active roller 11 and covers the grinding area where the grinding device 3 is located; the other end of the recycling pipe 5 is connected to a residual material recycling device that can generate negative pressure suction, and the residual material recycling device includes a recycling bin 101 with a feed inlet, a filter bag 102 installed in the recycling bin 101, and an air inlet pipe 6 installed. A circulation pump 103 is disposed in the recovery bin 101 and outside the filter bag 102. The bag opening of the filter bag 102 is installed at the feed port, and the end of the recovery pipe 5 is connected to the feed port. A heat dissipation port 41 is disposed in the cover body 4. The heat dissipation port 41 can eject a cooling airflow, and the rubber particles entering the cover body 4 are cooled by the cooling airflow to avoid the high temperature generated by grinding causing the rubber particles to have a certain degree of adhesion, which further causes the rubber particles to adhere to the inner wall of the recovery pipe 5. The heat dissipation port 41 is connected to the air intake pipe 6, and the other end of the air intake pipe 6 is connected to a cooling airflow supply component. Specifically in this embodiment, the air supply end of the circulation pump 103 is connected to a refrigerator through a pipeline, and is further connected to the air intake pipe 6. The above structure realizes the recycling of airflow and reduces the cost of the equipment.

[0037] During the recycling process, negative pressure is generated inside the recycling pipe 5 (the negative pressure is generated by the circulation pump 103), and the negative pressure absorbs the rubber particles produced during the grinding process into the residual material recovery device through the cover body (entering the filter bag 102), and after being filtered in the filter bag 102, the airflow is recovered by the circulation pump 103 and supplied to the refrigerator, and the airflow cooled by the refrigerator is discharged from the heat dissipation port 41. The rubber particles entering the cover body 4 are cooled by the cooling airflow.

[0038] See also Figure 4 , Figure 5 and Figure 6 Preferably, since the temperature of the floating rubber particles is not uniform, the temperature of the rubber particles just polished by the polishing device 3 is relatively high (strong adhesion), while the temperature of the rubber particles retained between one end and the other end in the air is relatively low (strong adhesion). In order to solve the above problem, the present application has made the following improvements: the heat dissipation port 41 is provided with a regulating structure for regulating the air flow rate of the heat dissipation port 41; the regulating structure includes a baffle 8 for regulating the flow rate of the heat dissipation port 41. During adjustment, when the polishing device 3 moves to the corresponding heat dissipation port 41 position, the overlapping area of ​​the baffle 8 and the heat dissipation port 41 is 0. At this time, the baffle 8 does not interfere with the air flow rate of the heat dissipation port 41;

[0039] When the grinding device 3 moves to the heat dissipation port 41 and is in a dislocated state, the overlap area between the baffle plate 8 and the heat dissipation port 41 is 60% to 80%, and the baffle plate 8 quantitatively blocks the non-corresponding heat dissipation port 41, and accordingly increases the flow rate of the corresponding heat dissipation port 41, further increasing the cooling effect on the rubber particles just ground by the grinding device 3. Through the above structure, the distribution of the cooling efficiency is achieved (by adjusting the flow rate of the cooling airflow discharged from the heat dissipation port 41).

[0040] Specifically, the area of ​​the baffle 8 accounts for 60% to 80% of the heat dissipation port 41. When the grinding device 3 moves to the heat dissipation port 41 and is in a dislocated state, the baffle 8 is located at the center of the heat dissipation port 41. A paddle 81 is provided on one side of the baffle 8, and a predetermined middle position of the paddle 81 is hinged to one side of the heat dissipation port 41; one end of the paddle 81 away from the baffle 8 extends to the outside of the cover body 4; and a paddle component 31 for driving the paddle 81 to move is provided on the grinding device 3. The driving component used for adjusting the baffle 8 is moved by the grinding device 3, so that the driving of the corresponding baffle 8 during the movement is more accurate.

[0041] In summary, the present invention provides a grinding device for conveyor belt processing, comprising a fixed worktable and a sliding worktable slidably installed on the fixed worktable, wherein a guide rail structure is provided at a position of the fixed worktable corresponding to the installation position of the sliding worktable, and the sliding worktable is slidably installed on the guide rail structure; a conveyor belt transmission device for supporting and driving the conveyor belt is installed on the fixed worktable, wherein the conveyor belt transmission device comprises an active roller and a driven roller rotatably installed on the fixed worktable, and the conveyor belt to be ground is sleeved between the two; the active roller is driven by a driving component to rotate, and in the process of transmitting the conveyor belt, the rotating active roller utilizes the friction between the components to drive the conveyor belt for transmission, and the driven roller is mainly used as a tensioning device to adjust the tension of the conveyor belt to ensure normal transmission. The driven roller can be supported by a cantilever beam (supported by one end and suspended by the other end), or the mounting structure in this embodiment. An adjustment bracket for supporting the driven roller is provided on one side of the fixed workbench; the adjustment bracket includes a pair of support platforms, and the support platform is provided with a plurality of groups of slots in a direction perpendicular to the axis of the active roller, and the end of the driven roller is correspondingly inserted into one of the groups of slots. By inserting the driven roller into the slots at different positions, the distance between the driven roller and the active roller can be adjusted, and the length of the conveyor belt with different inner diameters can be adapted, thereby increasing the versatility of the equipment. The driven roller is supported by a pair of support platforms, which ensures the force balance of the driven roller on the one hand, and facilitates the replacement of its parts if the driven roller is bent and deformed on the other hand. The present invention recovers the rubber particles scattered in the air through a cover body that can generate negative pressure, and cools the recovered rubber particles by blowing out cooling air through a heat dissipation port provided in the cover body, thereby preventing the rubber particles from adhering to the inner wall of the pipeline and affecting the transmission process.

[0042] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A grinding device for rubber conveyor belt processing, characterized in that: It includes a fixed workbench and a sliding workbench slidably mounted on the fixed workbench; the fixed workbench is equipped with a conveyor transmission device for supporting and driving the rubber conveyor belt, and the sliding workbench is equipped with a grinding device; The surface modification mortar formula of the rubber conveyor belt includes 80-100 parts by weight of elastomer, 3 parts by weight of zinc oxide, 1.5 parts by weight of stearic acid, 1 part by weight of antioxidant 264, 1 part by weight of accelerator NOBS, 2.5 parts by weight of accelerator TT, 40 parts by weight of white carbon black, 30 parts by weight of barium sulfate, 20 parts by weight of calcium carbonate, 3 parts by weight of diethylene glycol and 5 parts by weight of oil; The conveyor transmission device includes a driving roller and a driven roller rotatably mounted on the fixed workbench; the sliding workbench can drive the grinding device to reciprocate along the main axis direction of the driving roller; A recycling device for recycling rubber particles is installed above the fixed workbench, and the recycling device includes a cover body, a recycling pipe connected to the cover body, and an air intake pipe; the other end of the recycling pipe is connected to a residual material recycling device that can generate negative pressure suction; a heat dissipation port is arranged in the cover body, and the heat dissipation port is connected to the air intake pipe; The heat dissipation port is provided with an adjustment structure for adjusting the air flow rate of the heat dissipation port; the adjustment structure includes a baffle for adjusting the flow rate of the heat dissipation port; during adjustment, when the grinding device moves to the corresponding heat dissipation port position, the overlap area of ​​the baffle and the heat dissipation port is; When the grinding device moves to the dissipation port in a dislocated state, the overlap area between the baffle and the dissipation port is 60% to 80%; A paddle is provided on one side of the baffle, and a predetermined middle position of the paddle is hinged to one side of the heat dissipation port; One end of the paddle away from the baffle extends outside the cover; The polishing device is provided with a shifting component for driving the shifting piece to move.

2. The grinding device for rubber conveyor belt processing according to claim 1, characterized in that: The elastomer is one or more of thermoplastic polyurethane, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, liquid polyisoprene rubber, styrene-butadiene rubber, natural rubber, butadiene rubber, EPDM rubber, nitrile rubber, chloroprene rubber, and chlorosulfonated polyethylene rubber.

3. The grinding device for rubber conveyor belt processing according to claim 1, characterized in that: The long side direction of the cover body extends along the main axis direction of the active roller and covers the grinding area where the grinding device is located.

4. The grinding device for rubber conveyor belt processing according to claim 1 or 3, characterized in that: The recovery pipe, the air intake pipe and the heat dissipation port are provided in plurality and are evenly distributed inside the cover body.

5. The grinding device for rubber conveyor belt processing according to claim 1, characterized in that: An adjustment bracket for supporting the driven roller is provided on one side of the fixed workbench; The adjusting bracket is provided with a plurality of groups of slots in a direction perpendicular to the axis of the active roller, and the end of the driven roller is correspondingly inserted into one of the groups of slots.

6. The grinding device for rubber conveyor belt processing according to claim 1, characterized in that: The area of ​​the baffle plate accounts for 60% to 80% of the heat dissipation port. When the polishing device moves to the heat dissipation port in a dislocated state, the baffle plate is located at the center of the heat dissipation port.

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