Rubber belt track core gold pretreatment and impregnation integrated automatic treatment system

Abstract

The invention discloses a rubber track core gold pretreatment and gum dipping integrated automatic treatment system which adopts a closed type automatic circulation treatment process and comprises a hanger circulation conveying chain device, a core gold feeding and discharging treatment unit, a core gold pretreatment unit and a gum dipping treatment unit. According to the invention, the acidification and phosphorization effects during pretreatment are improved; the problems of pollution, re-rusting and the like are solved, the bonding strength of the core gold and the adhesive and the product quality stability are improved, the service life of the crawler belt is prolonged, the production efficiency is improved, meanwhile, hazardous wastes are effectively reduced, the national green and environment-friendly requirements are met, the use cost is low, and the production benefit is high.

Description

Technical Field

[0001] The invention relates to the field of rubber track production, and mainly to a method and device for pretreatment and dipping of core metal of rubber tracks, and in particular to an automatic processing system for pretreatment and dipping of core metal of rubber tracks. Background Art

[0002] Rubber tracks are usually made of a certain number of metal parts, namely core gold or steel cord crawler-type walking parts, embedded in the rubber layer. The metal parts embedded in the rubber layer are usually called core gold; and the core gold embedded in the rubber layer is generally made of metal materials mainly made of iron. The core gold of iron materials is very easy to rust due to the influence of external environmental conditions, which greatly affects the combination of core gold and rubber materials. Therefore, the core gold in the rubber track industry is generally treated with ultrasonic water washing or acid washing pre-treatment process, and the core gold after the above treatment is prone to rust, resulting in a decrease in the bonding strength between the core gold and the rubber, which seriously affects the quality of the rubber track products prepared thereby.

[0003] As a transmission bearing, the core gold plays a role in power transmission, guidance and lateral support. The corrosion resistance of the core gold and the degree of adhesion with the rubber compound are important factors affecting the overall quality of the rubber track. The processing of the core gold is an important process in the production of rubber tracks. Phosphoric acid is generally used as an immersion agent in the industry, and ultrasonic technology is used to immerse the core gold. The rust removal effect is poor and a large amount of phosphating wastewater needs to be treated, which increases the environmental protection cost of the enterprise; and in the immersion process, a large number of core gold stacks are usually used for synchronous treatment to save costs and processing time, which leads to the failure to fully immerse the contact points of each core gold stack, and the immersion and painting processes are separated, which makes the interval time of each core gold treatment process longer, and it is more likely to rust after being idle. The existing process of core gold treatment includes core gold pretreatment, dipping, etc., and the pretreatment process of core gold includes ultrasonic water washing, tap water washing, phosphating, hot water washing, etc. of the core gold. In the immersion process, a large number of core gold stacks are pretreated and then manually transported to the dipping line, and then a single core gold is suspended on the dipping device to enter the dipping process for dipping. However, this operation has a great impact on the physical and mental health of workers, and the labor intensity of workers is also very high. Therefore, it needs to be improved.

[0004] For example, the Chinese patent announcement number CN113564571A discloses an invention entitled "A process for phosphating the surface of core gold of rubber tracks", which includes the following steps: framing the core gold after shot blasting and placing it in an ultrasonic tank for ultrasonic cleaning to remove iron filings and impurities attached to the surface of the core gold; immersing the core gold in a neutral rust remover by immersion to remove the iron metal oxide film; placing the rust-removed core gold in a water tank and washing it with warm water; framing the washed core gold and immersing it in a surface conditioning liquid for surface conditioning; placing the core gold after surface conditioning in a phosphating liquid for phosphating; placing the phosphated core gold in a water washing tank and washing it with water at room temperature; placing the core gold in a passivating liquid for passivation to fill the phosphating pores and improve the adhesion of the coating; drying the passivated core gold with hot air, and then testing the thickness of the phosphating film. The new process of the invention has a rust removal function, and the effect is better than the current common pickling and degreasing processes, avoiding the generation of hazardous wastes of acid and alkali in degreasing and pickling to meet environmental protection requirements, and avoiding the occurrence of rust on the core gold, thereby improving the phosphating effect.

[0005] However, it can be seen from the above disclosed technical solution that it only improves the phosphating process in the surface pretreatment process of the core gold, but does not involve the dipping process. Moreover, if the core gold parts after acidification and phosphating are not promptly entered into the dipping process for dipping, the core gold parts after phosphating are very easy to rust again, thus affecting the effect of phosphating during pretreatment. The treatment of the core gold of the rubber track also includes other pretreatment processes, such as pickling, water washing, air drying and other processes, which are not involved. This also greatly increases the cost of the device and use. Moreover, the above treatment processes are mostly handled by manual handling, and cannot achieve fully automated control processing.

[0006] In the industry, the existing core gold pretreatment and dipping process is to stack a large number of core golds for pretreatment and then manually transport them to the dipping line, and then hang and dip a single core gold for dipping. This not only greatly increases the labor intensity of the operators, but also requires the workers to come into contact with chemical reagents during the operation, which also affects the health of the workers. In addition, during the existing core gold pretreatment and dipping process, the core gold parts are very easy to fall, resulting in incomplete pretreatment and dipping of the core gold parts. At present, in the rubber track production industry, there is no integrated automatic processing method for pretreatment and dipping of the core gold of rubber tracks.

[0007] Therefore, how to provide an integrated automatic processing system for rubber track core gold pretreatment and dipping. Change the single core gold suspension treatment to fully automated, integrated, and continuous pretreatment and dipping processes; at the same time, optimize the phosphate solution of the phosphating agent, neutral rust remover, surface conditioner and other materials used in the process to improve the acidification and phosphating effect during pretreatment. Solve the problems of pollution and rust, improve the bonding strength between the core gold and the adhesive and the stability of product quality, increase the service life of the track, improve production efficiency, and effectively reduce hazardous waste to meet the national green environmental protection requirements. The needs of actual rubber track production. Summary of the invention

[0008] The present invention provides an integrated automatic processing system for core gold pretreatment and dipping of rubber tracks, which adopts a closed automatic circulation processing process, including a hanger circulation conveyor chain device, a core gold loading and unloading processing unit, a core gold pretreatment unit and a dipping processing unit; the present invention improves the acidification and phosphating effects during pretreatment; solves the problems of pollution and rusting, improves the bonding strength between the core gold and the adhesive and the product quality stability, increases the service life of the track, improves production efficiency, and effectively reduces hazardous waste, meeting national green environmental protection requirements.

[0009] The present invention discloses an integrated automatic processing system for core metal pretreatment and dipping of rubber tracks, which adopts a closed automatic circulation processing process and is characterized in that it comprises a hanger circulation conveyor chain device, a core metal loading and unloading processing unit, a core metal pretreatment unit and a dipping processing unit; the hanger circulation conveyor chain device comprises a hanger circulation track and a core metal hanger; the hanger circulation track is connected in a closed loop at a corresponding position on the upper part of the core metal loading and unloading processing unit, the core metal pretreatment unit and the dipping processing unit; the core metal hanger can continuously circulate and move in the corresponding intervals of the core metal loading and unloading processing unit, the core metal pretreatment unit and the dipping processing unit through the hanger circulation track; The core gold loading and unloading processing unit comprises a core gold unloading area and a core gold hanging area, and a core gold hanger cleaning area is provided between the core gold unloading area and the core gold hanging area; The core gold pretreatment unit includes a core gold ultrasonic water washing unit, a core gold surface conditioning unit, a core gold phosphating unit and a core gold spraying unit; The core metal ultrasonic water washing section comprises a water washing and ultrasonic immersion tank, a main degreasing spray tank and a spray water washing tank which are arranged below the hanger circulation track and are arranged in sequence; The core gold surface conditioning treatment unit includes a surface conditioning spray pool disposed below the hanger circulation track; The core gold phosphating treatment part comprises a phosphating immersion tank, a phosphating water washing immersion tank and a passivation spray immersion tank which are arranged in sequence below the hanging tool circulation track.

[0010] The rubber track core metal pretreatment and glue dipping integrated automatic processing system, the glue dipping processing unit includes a preheating and drying section, a glue dipping processing section and a curing and drying processing section; after the core metal is phosphated, it is preheated and dried in the preheating and drying section and then enters the glue dipping processing section for glue dipping; the glue dipping processing section includes a primary glue dipping curing and a secondary glue dipping curing; The primary dipping and curing process includes a first dipping tank and a first curing and drying chamber; The secondary dipping and curing includes a second dipping tank and a second curing and drying chamber; After the core gold is dipped in the first dip tank, it enters the first curing and drying room for curing and drying, then enters the second dip tank for dip again, and then enters the second curing and drying room for curing and drying.

[0011] The described integrated automatic processing system for pretreatment and dipping of core gold of rubber tracks, wherein the core gold surface conditioning treatment part adds surface treatment additives in the surface conditioning spray pool during surface conditioning treatment, controls the concentration of the surface treatment additive solution during surface conditioning treatment to be 0.05-0.12Wt%, controls the temperature of the surface conditioning solution during surface conditioning treatment to be carried out at room temperature, the time is 3.5-5min, and controls continuous stirring during the surface conditioning treatment process.

[0012] In the integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks, a phosphoric acid mixed solution is added to the phosphating immersion tank during phosphating treatment of the core metal in the phosphating treatment part as the phosphating solution; the mass of the phosphoric acid mixed solution is controlled to be 3.5-5.5wt%.

[0013] The aforementioned automatic processing system for pre-treatment and dipping of core metal of rubber tracks, wherein the spray water washing tank of the core metal ultrasonic water washing part comprises a first water washing spray tank and a second spray water washing tank; The phosphating water washing and dipping tank comprises a first phosphating water washing and dipping tank and a second phosphating water washing and dipping tank which are adjacent to each other.

[0014] The integrated automatic processing system for pre-treatment and dipping of core gold of rubber tracks, wherein the core gold hanger cleaning area includes a core gold hanger ultrasonic immersion tank and a core gold hanger water washing immersion tank. Preferably, the integrated automatic processing system for pretreatment and dipping of core gold in rubber tracks, the core gold hanger comprises two chassis cross bars, a chassis vertical bar, a core gold slot and a core gold falling prevention device; the core gold slots are respectively arranged at corresponding positions of the two chassis cross bars, and the chassis vertical bar is provided with four respectively corresponding fixed connections at both ends of the two chassis cross bars; the core gold falling prevention device is arranged at corresponding positions of the chassis vertical bar near the ends of the two chassis cross bars; the core gold is movably placed in the core gold slots on the two chassis cross bars, and is controlled by the core gold falling prevention device arranged on the chassis vertical bar to prevent it from falling.

[0015] The described rubber track core metal pretreatment and glue dipping integrated automatic processing system, wherein the glue dipping processing part includes primary glue dipping curing and secondary glue dipping curing; the primary glue dipping curing includes a first glue dipping tank and a corresponding first curing and drying chamber; the secondary glue dipping curing includes a second glue dipping tank and a corresponding second curing and drying chamber; after the core metal is dipped in the first glue dipping tank, it enters the corresponding first curing and drying chamber for the first curing and drying treatment, then enters the second glue dipping tank for the secondary glue dipping treatment, and finally enters the corresponding second curing and drying chamber for the secondary curing and drying treatment.

[0016] The present invention relates to an integrated automatic processing system for pretreatment and dipping of core gold of rubber tracks, wherein the concentration of orthophosphoric acid in the phosphoric acid mixed solution is controlled to be 5-10%, the concentration of zinc dihydrogen phosphate is controlled to be 25-50%, and the concentration of sodium chlorate is controlled to be 10-25%; and the phosphating treatment temperature is controlled to be 40-50°C and the time is controlled to be 1-8 minutes.

[0017] The described rubber track core metal pretreatment and glue dipping integrated automatic processing system, the described core metal falling prevention device comprises a fixed cross bar, a movable cross bar, and a movable cross bar sleeve, the fixed cross bar is a U-shaped structure, and its open ends are respectively fixedly connected to the corresponding positions of the two chassis vertical bars near the ends of the chassis cross bar; the movable cross bar sleeve is fixedly connected to the other two chassis vertical bars corresponding to the fixed cross bar, and its vertical height position in the longitudinal direction is quite corresponding to the vertical height position of the fixed cross bar; an elastic member is provided in the inner cavity of the movable cross bar sleeve, and the movable cross bar is also provided with a U-shaped structure, and its open ends are respectively movably inserted in the sleeve of the movable cross bar sleeve, and the movable cross bar inserted in the sleeve of the movable cross bar sleeve can move in the horizontal radial direction under the action of the elastic member provided in the inner cavity of the movable cross bar sleeve; the core metal is movably placed in the core metal slots on the two chassis cross bars, and the two ends of the core metal correspond to the positions of the fixed cross bar and the movable cross bar respectively.

[0018] The present invention discloses an integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks. The above-mentioned process method and device are used to completely integrate the pickling, phosphating, surface conditioning, water washing and dipping processes in the pretreatment of core metal of rubber tracks into a closed fully automatic control operating system, which greatly improves the production efficiency of core metal processing of rubber tracks, greatly reduces its production cost, and also has the following beneficial effects: (1) Through process innovation, equipment upgrade and material improvement, the phosphating leaching process pretreatment of core gold is combined with the processes of gluing and drying, forming an integrated process technology for core gold pretreatment and gluing process, and developing a new integrated and continuous equipment system. The core gold is hung individually before processing, so that the subsequent processing is more uniform and sufficient, and the leaching, gluing and drying processes are fully automated, integrated and continuous. It avoids the pollution of core gold caused by manual collection and hanging in the process, saves personnel allocation costs, reduces the processing time of core gold, solves the problems of pollution and rust, and improves the processing efficiency and bonding performance of core gold. The leaching raw material is upgraded from the original phosphoric acid to phosphate solution, and auxiliary agents such as neutral rust removal and degreasing agent and passivation agent are added to improve the phosphating effect, effectively avoid the generation of harmful substances or hazardous waste, and greatly improve the environmental protection level of the processing process.

[0019] (2) By utilizing the integrated process technology and automated equipment for core gold pretreatment and resin dipping, the core gold is hung individually and then automatically subjected to continuous treatments of phosphating, resin dipping and drying, thus shortening the processing time and avoiding metal rust caused by long intervals between processes, thereby improving work efficiency and core gold quality. Auxiliary agents such as phosphates and neutral rust removers and degreasers are used to reduce the generation of hazardous waste, improve the environmental protection level of the process, and reduce the time intervals between each process, thus solving the problem of rust and contamination on the core gold surface caused by long storage time of core gold phosphating.

[0020] (3) The final effect of the present invention is reflected in the bonding strength between the core gold and the rubber. According to the quality standard requirement of GB / T 20786-2015 national standard, the bonding strength between the core gold and the rubber should be no less than 12KN / M; the average value of the measured data of the bonding strength between the core gold and the rubber of the present invention is 29N / MM, and the median value is 28N / MM, which is at least 16N / M higher than the national standard: after the core gold is pretreated and dipped in the glue by the system of the present invention, the bonding strength of the core gold iron sheet is improved by more than 11% compared with the prior art, that is, the pickling process of the traditional technology, such as Figure 8 As shown, it has significant rust removal and rust prevention effects; On the other hand, the system of the present invention is based on the actual pretreatment and dipping treatment of the core gold parts under automatic control. During the pretreatment, the core gold on the core gold hanger is subjected to ultrasonic water washing, surface phosphating, spray water washing, hot water washing and other processes and dipping treatment. In order to maximize the contact between the core gold 19 and the pretreatment solution and the dipping solution, the core gold parts are directly placed in the core gold card slot 1803 on the chassis cross bar 1801. In the actual circulation and transportation process, the core gold parts are very easy to fall, which seriously affects the efficiency of the pretreatment and dipping treatment. The system of the present invention is provided with an anti-fall device corresponding to the core gold 19, thereby effectively preventing the core gold 19 from falling during the circulation and transportation on the hanger circulation track 21 during the pretreatment and dipping treatment. The average value of the measured data of the bonding strength between the core gold and rubber of the present invention is 29N / MM, and the median value is 28N / MM. According to GB / 20786-2015. The national standard requires that the bonding strength between the core gold and the rubber should be no less than 12KN / M. The bonding strength of the present invention is more than double that of the national standard, reaching 16N / MM. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 , is a three-dimensional structural diagram of an embodiment of the integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks of the present invention, Figure 2 , is a top view schematic diagram of an embodiment of the integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks of the present invention, Figure 3 , a schematic diagram of the planar layout structure of an embodiment of the automatic processing system for pre-processing and dipping of core metal of rubber tracks of the present invention; the core metal hanger 18 is driven by the hanger circulating conveyor chain device 13, along Figure 3 The conveyor runs in the direction of the arrow shown in the figure; Figure 4 , which is a schematic diagram of a core gold hanger 18 installed with a core gold 19 according to an embodiment of the present invention Figure 5 , is a schematic diagram of a core gold slot structure provided on a chassis crossbar 1801 of a core gold hanger 18 according to an embodiment of the present invention; Figure 6 , for Figure 5 Schematic diagram of the structure of the device to prevent the core metal from falling; Figure 7 , for Figure 6 The core gold 19 is placed on the top; the core gold 19 is clamped in the core gold clamping slots 1803 on the two chassis cross bars 1801, and the two ends of the core gold 19 are respectively blocked at the two ends by the fixed cross bar 1804 and the movable cross bar 1805 installed on the chassis vertical bar 1802, so as to effectively prevent the core gold 19 from falling during transportation, pretreatment and dipping; Figure 8 , is the column chart of the average value of bonding strength data, Figure 8The new process on the left side in the middle shows that the core gold 19 treated with the rubber track core gold pretreatment and glue dipping integrated automatic processing system of the present invention has an average bonding strength data of 28.00 N / mm after being combined with the track rubber; while the old process on the right side, the existing technology process, shows only 25.30 N / mm, indicating that the bonding force between the core gold 19 treated with the system method of the present invention and the track rubber material is greater and stronger, 2.7 N / mm higher.

[0022] In the figure, 1, core gold hanger ultrasonic immersion tank, 2, core gold hanger water washing immersion tank, 3, core gold hanging area, 4, water washing and ultrasonic immersion tank, 5, main degreasing spray tank, 6, first water washing spray tank, 7, second spray water washing tank, 8, surface adjustment spray tank, 9, phosphating immersion tank, 10, first phosphating water washing immersion tank, 11, second phosphating water washing immersion tank, 12, passivation spray tank, 13, hanger circulation track, 14, immersion Glue room, 1401, first glue dipping tank, 1402, second glue dipping tank, 15, preheating and drying section, 16, first curing and drying chamber, 17, second curing and drying chamber, 18, core gold hanger, 1801, chassis cross bar, 1802, chassis vertical bar, 1803, core gold slot, 1804, fixed cross bar, 1805, movable cross bar, 1806, movable cross bar sleeve, 19, core gold, 20, core gold unloading area. DETAILED DESCRIPTION The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The percentages in the present invention are mass percentages, and the concentrations are mass concentrations; all raw materials involved in the present invention can be obtained commercially. The present invention is not limited to the embodiments.

[0024] like Figure 1-7 As shown, the present invention discloses an integrated automatic processing system for core gold pretreatment and dipping of rubber tracks, which adopts a closed automatic circulation processing process, that is, the hanger circulation track 13 of the hanger circulation conveyor chain device circulates and connects the entire processing system, including the hanger circulation conveyor chain device, the core gold loading and unloading processing unit, the core gold pretreatment unit and the dipping processing unit; the hanger circulation conveyor chain device includes a core gold hanger 18 and a hanger circulation track 13, and the hanger circulation track 13 is connected in a closed loop at the corresponding position of the upper part of the core gold loading and unloading processing unit, the core gold pretreatment unit and the dipping processing unit; the core gold hanger 18 can continuously circulate and move in the corresponding intervals of the core gold loading and unloading processing unit, the core gold pretreatment unit and the dipping processing unit through the hanger circulation track 13; Figure 3 The running direction indicated by the arrow on the middle hanger circulation track 13 is the conveying running direction of the core gold hanger 18 on the hanger circulation track 13, which can be closed and continuously circulated; like Figure 1-3As shown, the core gold unloading and loading processing unit includes a core gold unloading area 20 and a core gold hanging area 3, and a core gold hanger cleaning area is provided between the core gold unloading area 20 and the core gold hanging area 3; the core gold hanger cleaning area includes a core gold hanger ultrasonic immersion pool 1 and a core gold hanger water washing immersion pool 2; that is, the core gold 19 on the core gold hanger 18 suspended on the hanger circulating track 13 enters the core gold unloading area 20 to unload the core gold 19, and the core gold hanger 18 first enters the core gold hanger ultrasonic immersion pool 1 for ultrasonic cleaning, and then enters the core gold hanger water washing immersion pool 2 for further cleaning with clean water, so that the core gold hanger 18 and other chemical substances such as dipped glue are cleaned; The core gold pretreatment unit includes a core gold ultrasonic water washing unit, a core gold surface conditioning unit, a core gold phosphating unit and a core gold spraying unit; The core metal ultrasonic water washing section includes a water washing and ultrasonic immersion tank 4, a main degreasing spray tank 5 and a spray water washing tank, which are arranged below the hanger circulation track 13 and are arranged in sequence; the spray water washing tank includes a first water washing spray tank 6 and a second spray water washing tank 7; The core gold surface conditioning treatment unit includes a surface conditioning spray pool 8 disposed below the hanger circulation track 13; The core gold phosphating treatment section includes a phosphating immersion tank 9, a phosphating water washing immersion tank and a passivation spray immersion tank 12 which are arranged in sequence below the hanger circulation track 13; the phosphating water washing immersion tank includes a first phosphating water washing immersion tank 10 and a second phosphating water washing immersion tank 11 which are adjacently arranged.

[0025] like Figure 3 As shown, the rubber track core gold pretreatment and dipping integrated automatic processing system, wherein the dipping processing unit includes a preheating and drying section 15, a dipping processing section and a curing and drying processing section; after the core gold 19 is phosphated, it is preheated and dried in the preheating and drying section 15 and then enters the dipping processing section for dipping; the dipping processing section includes a primary dipping curing and a secondary dipping curing; the primary dipping curing includes a first dipping tank 1401 and a first curing and drying chamber 16; the secondary dipping curing includes a second dipping tank 1402 and a second curing and drying chamber 17; after the core gold 19 is dipped in the first dipping tank 1401, it enters the first curing and drying chamber 16 for curing and drying, then enters the second dipping tank 1402 for dipping again, and then enters the second curing and drying chamber 17 for curing and drying.

[0026] Preferably, the dipping treatment section includes primary dipping curing and secondary dipping curing; the primary dipping curing includes a first dipping tank 1401 and a corresponding first curing and drying chamber 16; the secondary dipping curing includes a second dipping tank 1402 and a corresponding second curing and drying chamber 17; after the core gold 19 is dipped in the first dipping tank 1401, it enters the corresponding first curing and drying chamber 16 for the first curing and drying treatment, and then enters the second dipping tank 1402 for the secondary dipping treatment, and finally enters the corresponding second curing and drying chamber 17 for the secondary curing and drying treatment.

[0027] The described automatic processing system for pretreatment and dipping of core gold of rubber tracks is characterized in that surface treatment additives are added to the surface treatment spray pool 8 during surface treatment in the core gold surface treatment part, and the concentration of the surface treatment additive solution is controlled to be 0.05-0.12Wt%. The temperature of the surface treatment solution is controlled to be carried out at room temperature during the surface treatment, and the surface treatment time is 3.5-5min. In addition, continuous stirring is performed during the surface treatment process, that is, the surface treatment solution in the surface treatment spray pool 8 is continuously stirred.

[0028] Furthermore, when the core gold phosphating treatment part is subjected to phosphating treatment, a phosphoric acid mixed solution is added to the phosphating leaching tank 9 as a phosphating treatment solution; the mass solution of the phosphoric acid mixed solution is controlled to be 3.5-5.5wt%. Furthermore, the concentration of orthophosphoric acid in the phosphoric acid mixed solution is controlled to be 5-10%, the concentration of zinc dihydrogen phosphate is controlled to be 25-50%, and the concentration of sodium chlorate is controlled to be 10-25%; the phosphating treatment temperature is controlled to be 40-50°C, and the time is controlled to be 1-8min.

[0029] like Figure 6-7As shown, the present invention relates to an integrated automatic processing system for core gold pretreatment and dipping of rubber tracks, wherein the core gold hanger 18 comprises two chassis cross bars 1801, a chassis vertical bar 1802, a core gold slot 1803 and a core gold falling prevention device; the core gold slots 1803 are respectively and correspondingly arranged at corresponding positions of the two chassis cross bars 1801, and the chassis vertical bar 1802 is provided with four respectively and correspondingly fixedly connected to the two ends of the two chassis cross bars 1801; the core gold falling prevention device is arranged at the corresponding position of the chassis vertical bar 1802 near the ends of the two chassis cross bars 1802; the core gold 19 is movably placed in the core gold slot 1803 on the two chassis cross bars 1801, and is controlled by the core gold falling prevention device arranged on the chassis vertical bar 1802 to prevent it from falling. The anti-core gold falling device comprises a fixed cross bar 1804, a movable cross bar 1805 and a movable cross bar sleeve 1806. The fixed cross bar 1804 is a U-shaped structure, and its open ends are respectively fixedly connected to the corresponding positions of the two chassis vertical bars 1802 close to the ends of the chassis cross bar 1801; the movable cross bar sleeve 1806 is fixedly connected to the other two chassis vertical bars 1802 corresponding to the fixed cross bar 1804, and its vertical height position along the longitudinal direction is quite corresponding to the vertical height position of the fixed cross bar 1804; The cavity is provided with elastic parts, and the movable cross bar 1805 is also provided with a U-shaped structure, and its open ends are respectively movably inserted into the sleeve of the movable cross bar 1806, and the movable cross bar 1805 inserted into the sleeve of the movable cross bar 1806 can move in the horizontal direction under the action of the elastic parts provided in the inner cavity of the sleeve of the movable cross bar 1806; the core gold 19 is movably placed in the core gold slot 1803 on the two chassis cross bars 1801, and the upper and lower positions of the two ends of the core gold 19 correspond to the positions of the fixed cross bar 1804 and the movable cross bar 1805. That is, when the core gold 19 placed in the core gold slot 1803 needs to be placed or removed, the movable cross bar 1805 in the sleeve of the movable cross bar 1806 can be movably mounted, so that the core gold 19 can be conveniently taken out.

[0030] The technical solution of the integrated system for core gold pretreatment and dipping disclosed in the present invention solves the problems of easy rusting and low production efficiency in traditional core gold treatment processes by optimizing the design of core gold pretreatment such as surface phosphating process and dipping process. It adopts new materials and new integrated core gold pretreatment and dipping technology to solve the problems of pollution and rusting, improves the bonding strength between core gold and adhesive and the stability of product quality, increases the service life of the track, improves production efficiency, and effectively reduces hazardous waste to meet national green environmental protection requirements.

[0031] All matters not described in the following embodiments are the same as those described in the above specific implementation manner, and the components such as additives are all commercially available. Example

[0032] like Figure 1-7As shown, the present invention discloses an integrated automatic processing system for core metal pretreatment and dipping of rubber tracks. The system of the present invention adopts a fully automatic control system PLC control and adopts a closed automatic circulation processing process, that is, the hanger circulation track 13 of the hanger circulation conveyor chain device circulates and connects the entire processing system, including a hanger circulation conveyor chain device, a core metal loading and unloading processing unit, a core metal pretreatment unit and a dipping processing unit; the hanger circulation conveyor chain device includes a core metal hanger 18 and a hanger circulation track 13, and the hanger circulation track 13 is connected in a closed loop at the corresponding position of the upper part of the core metal loading and unloading processing unit, the core metal pretreatment unit and the dipping processing unit; the core metal hanger 18 can continuously circulate and move in the corresponding intervals of the core metal loading and unloading processing unit, the core metal pretreatment unit and the dipping processing unit through the hanger circulation track 13; like Figure 1-3 As shown, the core gold unloading and loading processing unit includes a core gold unloading area 20 and a core gold hanging area 3, and a core gold hanger cleaning area is provided between the core gold unloading area 20 and the core gold hanging area 3; the core gold hanger cleaning area includes a core gold hanger ultrasonic immersion pool 1 and a core gold hanger water washing immersion pool 2; that is, the core gold 19 on the core gold hanger 18 suspended on the hanger circulating track 13 enters the core gold unloading area 20 to unload the core gold 19, and the core gold hanger 18 first enters the core gold hanger ultrasonic immersion pool 1 for ultrasonic cleaning, and then enters the core gold hanger water washing immersion pool 2 for further cleaning with clean water, so that the core gold hanger 18 and other chemical substances such as dipped glue are cleaned; The core gold pretreatment unit includes a core gold ultrasonic water washing unit, a core gold surface conditioning unit, a core gold phosphating unit and a core gold spraying unit; The core metal ultrasonic water washing section includes a water washing and ultrasonic immersion tank 4, a main degreasing spray tank 5 and a spray water washing tank, which are arranged below the hanger circulation track 13 and are arranged in sequence; the spray water washing tank includes a first water washing spray tank 6 and a second spray water washing tank 7; The core gold surface conditioning treatment unit includes a surface conditioning spray pool 8 disposed below the hanger circulation track 13; The core gold phosphating treatment section includes a phosphating immersion tank 9, a phosphating water washing immersion tank and a passivation spray immersion tank 12 which are arranged in sequence below the hanger circulation track 13; the phosphating water washing immersion tank includes a first phosphating water washing immersion tank 10 and a second phosphating water washing immersion tank 11 which are adjacently arranged.

[0033] like Figure 2 , 3As shown, the rubber track core gold pretreatment and dipping integrated automatic processing system, wherein the dipping processing unit includes a preheating and drying section 15, a dipping processing section and a curing and drying processing section; after the core gold 19 is phosphated, it is preheated and dried in the preheating and drying section 15 and then enters the dipping processing section for dipping; the dipping processing section includes a primary dipping curing and a secondary dipping curing; the primary dipping curing includes a first dipping tank 1401 and a first curing and drying chamber 16; the secondary dipping curing includes a second dipping tank 1402 and a second curing and drying chamber 17; after the core gold 19 is dipping in the first dipping tank 1401, it enters the first curing and drying chamber 16 for curing and drying, and the core gold 19 after the dipping in the first dipping tank 1401 and the drying in the first curing and drying chamber 16 enters the second dipping tank 1402 for dipping again, and then enters the second curing and drying chamber 17 for curing and drying. The core gold 19 after the secondary impregnation and curing treatment is transported by the core gold hanger 18 on the hanger circulating track 13 to the core gold unloading area 20 for unloading.

[0034] Preferably, the dipping treatment section includes primary dipping curing and secondary dipping curing; the primary dipping curing includes a first dipping tank 1401 and a corresponding first curing and drying chamber 16; the secondary dipping curing includes a second dipping tank 1402 and a corresponding second curing and drying chamber 17; after the core gold 19 is dipped in the first dipping tank 1401, it enters the corresponding first curing and drying chamber 16 for the first curing and drying treatment, and then enters the second dipping tank 1402 for the secondary dipping treatment, and finally enters the corresponding second curing and drying chamber 17 for the secondary curing and drying treatment.

[0035] The described automatic processing system for pretreatment and dipping of core gold of rubber tracks, when the core gold surface conditioning treatment part performs surface conditioning treatment, a surface treatment additive is added to the surface conditioning spray pool 8, the concentration of the surface treatment additive solution is controlled to be 0.10Wt%, the temperature of the surface conditioning solution is controlled to be carried out at room temperature, the time is 3.5-5min, and the stirring is controlled to be carried out continuously during the surface conditioning treatment. The surface treatment additive used in this embodiment is GARDOLENEV 6559, and its main components / composition information are: a mixture of inorganic compounds, water, and inorganic salts: specifically, zinc oxide content (W / W): = 0.5% -<1%; 2-methyl-3(2H)-isothiazolinone content (W / W): >0% -<0.1%, zinc phosphate content (W / W): = 25% -<30%, that is, a mixture of the above components.

[0036] When the core gold phosphating treatment part is subjected to phosphating treatment, a phosphoric acid mixed solution is added to the phosphating leaching tank 9 as the phosphating treatment solution; the mass solution of the phosphoric acid mixed solution is controlled to be 3.5-5.5wt%. Further, the concentration of orthophosphoric acid in the phosphoric acid mixed solution is controlled to be 5-10%, the concentration of zinc dihydrogen phosphate is controlled to be 25-50%, and the concentration of sodium chlorate is controlled to be 10-25%; the phosphating treatment temperature is controlled to be 40-50°C, and the time is controlled to be 1-8min.

[0037] The present invention discloses an integrated automatic processing system for core gold pretreatment and dipping of rubber tracks, wherein the core gold hanger 18 comprises two chassis cross bars 1801, a chassis vertical bar 1802, a core gold slot 1803 and a core gold falling prevention device; the core gold slots 1803 are respectively and correspondingly arranged at corresponding positions of the two chassis cross bars 1801, and the chassis vertical bar 1802 is provided with four respectively and correspondingly fixedly connected to the two ends of the two chassis cross bars 1802; the core gold falling prevention device is arranged at corresponding positions of the chassis vertical bar 1802 near the ends of the two chassis cross bars 1802; the core gold 19 is movably placed in the core gold slot 1803 on the two chassis cross bars 1801, and its falling is controlled by the core gold falling prevention device arranged on the chassis vertical bar 1802. The device for preventing the core metal from falling comprises a fixed cross bar 1804, a movable cross bar 1805 and a movable cross bar sleeve 1806. The fixed cross bar 1804 is a U-shaped structure, and its open ends are respectively fixedly connected to the corresponding positions of the two chassis vertical bars 1802 close to the ends of the chassis cross bar 1801; the movable cross bar sleeve 1806 is fixedly connected to the other two chassis vertical bars 1802 corresponding to the fixed cross bar 1804, and its vertical height position in the longitudinal direction is quite corresponding to the vertical height position of the fixed cross bar 1804; the movable cross bar sleeve 1806 is sleeved The inner cavity of the tube is provided with an elastic member, and the movable cross bar 1805 is also provided with a U-shaped structure, and its open ends are respectively movably inserted into the sleeve of the movable cross bar 1806. The movable cross bar 1805 inserted into the sleeve of the movable cross bar 1806 can move in the horizontal direction, that is, in the horizontal direction of the axial direction, that is, it can move left and right from the movable cross bar 1806 under the action of the elastic member, so that the core gold 19 can be better clamped between the fixed cross bar 1804 and the movable cross bar 1805 to prevent the core gold 19 from falling off during the processes of dipping and pickling. The inner cavity of the movable cross bar 1806 sleeve moves in the horizontal direction under the action of the elastic member; the core gold 19 is movably placed in the core gold slot 1803 on the two chassis cross bars 1801, and the upper and lower positions of the two ends of the core gold 19 correspond to the positions of the fixed cross bar 1804 and the movable cross bar 1805 respectively.

[0038] The main working process is as follows: the core gold 19 is mounted in the core gold upper hanging area 3 on the core gold clamping groove 1803 on the two chassis cross bars 1801 and the chassis vertical bar 1802 of the core gold hanger 18, and one end of the core gold hanger 18 is movably suspended on the hanger circulating track 13. The core gold hanger 18 with the core gold 19 moves forward along the hanger circulating track 13 under the action of power and enters the ultrasonic swimming immersion tank 4 for ultrasonic water washing treatment, enters the main degreasing spray tank 5 for treatment, and then enters the first water washing spray tank 6 and the second spray water washing tank 7 for two times of clean water spraying and surface adjustment spray tank 8 cleaning; then enters the phosphating swimming immersion tank 9 for phosphating treatment, and enters the first phosphorus after phosphating treatment. After the phosphating water washing and dipping tank 10, the second phosphating water washing and dipping tank 11 and the passivation spray tank 12 are subjected to phosphating spray treatment, they enter the preheating and drying section 15 for preheating and drying; finally, they are dipped in the first dip tank 1401 in the dip chamber 14 and enter the first curing and drying chamber 16 for curing and drying, and then enter the second dip tank 1402, and after the dip treatment, they enter the second curing and drying chamber 17 for curing and drying. The core gold 19 obtained after the above-mentioned pretreatment and dip treatment is transported by the hanger circulating track 13 to the core gold unloading area 20 to put down the treated core gold 19; that is, the core gold product processed by the rubber track core gold pretreatment and dip integrated automatic processing system of the present invention is obtained. The core gold hanger 18 continues to move forward on the hanger circulation track 13 to the core gold hanger ultrasonic immersion tank 1 and the core gold hanger water washing immersion tank 2. The core gold hanger 18 treated enters the core gold hanging area 3 and then loads the core gold 19 to be treated. In this way, a closed circulation system is formed to perform pretreatment and integrated dipping automatic treatment on the core gold 19.

[0039] By using the above-mentioned automatic processing system for pretreatment and impregnation of rubber track core gold disclosed in the present invention, the rubber track core gold 19 is pretreated and impregnated, and the rubber track prepared is subjected to a peeling test, i.e., an adhesion performance test, by a relevant testing agency. The specific test data are as follows.

[0040] Table 1:

[0041] Note that in Table 1 above, the test data of the bonding strength between the core gold and the rubber are measured at a test speed of 50.00 mm / min. The name of the test piece is core peeling, and the test data value of the peeling of the core gold from the track rubber layer is also the bonding strength. The test standard is the national standard of the People's Republic of China, GB / 20786-2015. According to the above national standard, the bonding strength between the core gold and the rubber should be no less than 12KN / M. The average value of the measured data of the bonding strength between the core gold and the rubber of the present invention is 29N / MM, and the median value is 28N / MM. This shows that the bonding force of the rubber track prepared by the core gold and rubber after the treatment of the present invention is much higher than the national standard requirements.

[0042] Through the above-mentioned process innovation, equipment upgrade and material improvement, the present invention improves the environmental protection cost of the enterprise by using the existing process to immerse the core gold, which is easy to rust and has poor effect, and will produce a large amount of phosphating wastewater that needs to be treated; the existing immersion process usually adopts a large number of core gold stacks to be processed synchronously to save costs and processing time, resulting in the failure to fully immerse the contact points of each core gold stack, and the immersion and brushing and dipping processes are separated, so that the interval between each process of the core gold treatment is long, and it is more likely to rust after being idle. The phosphating immersion process of the core gold pretreatment is combined with the processes of gluing and drying to form an integrated process technology scheme for the core gold pretreatment and dipping process. The present invention provides a new integrated and continuous equipment system. Before processing, the core gold is suspended individually to make the subsequent treatment more uniform and sufficient. The immersion, gluing and drying processes are fully automated, integrated and continuous, avoiding the pollution of the core gold caused by artificial collection and hanging in the process, saving personnel configuration costs, reducing the processing time of the core gold, solving the problems of pollution and rust, and improving the processing efficiency and bonding performance of the core gold. It improves the adhesion and corrosion resistance of the subsequent dipping process, improves the phosphating effect, effectively avoids the generation of harmful substances or hazardous wastes, and greatly improves the environmental protection level of the treatment process.

Claims

1. An integrated automatic processing system for pretreatment and dipping of rubber track core metal, adopting a closed automatic circulation processing process, characterized in that: It includes a hanger circulating conveyor chain device, a core gold loading and unloading processing unit, a core gold pretreatment unit and a dipping processing unit; the hanger circulating conveyor chain device includes a hanger circulating track and a core gold hanger; the hanger circulating track is connected in a closed loop and is arranged at a corresponding position on the upper part of the core gold loading and unloading processing unit, the core gold pretreatment unit and the dipping processing unit; the core gold hanger can continuously circulate and move in the corresponding intervals of the core gold loading and unloading processing unit, the core gold pretreatment unit and the dipping processing unit through the hanger circulating track; the core gold loading and unloading processing unit includes a core gold unloading area and a core gold hanging area, A core gold hanger cleaning area is provided between the area and the core gold hanging area; the core gold pretreatment unit includes a core gold ultrasonic water washing section, a core gold surface conditioning treatment section, a core gold phosphating treatment section and a core gold spray treatment section; the core gold ultrasonic water washing section includes a water washing and ultrasonic immersion tank, a main degreasing spray tank and a spray water washing tank which are arranged below the hanger circulation track and are arranged in sequence; the core gold surface conditioning treatment section includes a surface conditioning spray tank which is arranged below the hanger circulation track; the core gold phosphating treatment section includes a phosphating immersion tank, a phosphating water washing immersion tank and a passivation spray immersion tank which are arranged below the hanger circulation track and are arranged in sequence.

2. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 1 is characterized in that: The resin dipping unit includes a preheating and drying section, a resin dipping section and a curing and drying section. After the core gold is phosphated, it is preheated and dried in the preheating and drying section and then enters the resin dipping section for resin dipping. The resin dipping section includes a primary resin dipping and curing section and a secondary resin dipping and curing section. The primary dipping and curing process includes a first dipping tank and a first curing and drying chamber; The secondary dipping and curing includes a second dipping tank and a second curing and drying chamber; After the core gold is dipped in the first dip tank, it enters the first curing and drying room for curing and drying, then enters the second dip tank for dip again, and then enters the second curing and drying room for curing and drying.

3. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 1 is characterized in that: When the core gold surface conditioning treatment department performs surface conditioning treatment, surface treatment additives are added to the surface conditioning spray pool, and the concentration of the surface treatment additive solution is controlled to be 0.05-0.12Wt%. The temperature of the surface conditioning solution is controlled to be carried out at room temperature, the time is 3.5-5min, and continuous stirring is controlled during the surface conditioning process.

4. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 1 is characterized in that: When the core gold phosphating treatment part performs phosphating treatment, a phosphoric acid mixed solution is added to the phosphating leaching tank as the phosphating treatment solution; the mass of the phosphoric acid mixed solution is controlled to be 3.5-5.5wt%.

5. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 1 is characterized in that: The spray water washing tank of the core gold ultrasonic water washing part includes a first water washing spray tank and a second spray water washing tank; the phosphating water washing and dipping tank includes a first phosphating water washing and dipping tank and a second phosphating water washing and dipping tank which are adjacently arranged.

6. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 1 is characterized in that: The core gold hanger cleaning area includes a core gold hanger ultrasonic immersion tank and a core gold hanger water washing immersion tank.

7. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 1 or 2, characterized in that: The core gold hanger comprises two chassis cross bars, a chassis vertical bar, a core gold slot and a core gold falling prevention device; the core gold slots are respectively arranged at corresponding positions of the two chassis cross bars, and the chassis vertical bar is provided with four respectively corresponding fixed connections at both ends of the two chassis cross bars; the core gold falling prevention device is arranged at corresponding positions of the chassis vertical bar near the ends of the two chassis cross bars; the core gold is movably placed in the core gold slots on the two chassis cross bars, and is controlled by the core gold falling prevention device arranged on the chassis vertical bar to prevent it from falling.

8. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 2 is characterized in that: The dipping treatment section includes primary dipping and curing and secondary dipping and curing; the primary dipping and curing includes a first dipping pool and a corresponding first curing and drying chamber; the secondary dipping and curing includes a second dipping pool and a corresponding second curing and drying chamber; after the core gold is dipped in the first dipping pool, it enters the corresponding first curing and drying chamber for the first curing and drying treatment, then enters the second dipping pool for the secondary dipping treatment, and finally enters the corresponding second curing and drying chamber for the secondary curing and drying treatment.

9. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 4 is characterized in that: The concentration of orthophosphoric acid in the phosphoric acid mixed solution is controlled to be 5-10%, the concentration of zinc dihydrogen phosphate is controlled to be 25-50%, and the concentration of sodium chlorate is controlled to be 10-25%; the phosphating treatment temperature is controlled to be 40-50°C, and the treatment time is controlled to be 1-8 minutes.

10. The integrated automatic processing system for pretreatment and dipping of core metal of rubber tracks according to claim 7 is characterized in that: The device for preventing core gold from falling comprises a fixed cross bar, a movable cross bar and a movable cross bar sleeve. The fixed cross bar is a U-shaped structure, and its open ends are respectively fixedly connected to the corresponding positions of the two chassis vertical bars near the ends of the chassis cross bar; the movable cross bar sleeve is fixedly connected to the other two chassis vertical bars corresponding to the fixed cross bar, and its vertical height positions are quite corresponding to the lower height position of the fixed cross bar; an elastic member is arranged in the inner cavity of the movable cross bar sleeve, and the movable cross bar is also arranged in a U-shaped structure, and its open ends are respectively movably inserted in the sleeve of the movable cross bar sleeve. The movable cross bar inserted in the sleeve of the movable cross bar sleeve can move in the horizontal radial direction under the action of the elastic member arranged in the inner cavity of the movable cross bar sleeve; the core gold is movably placed in the core gold slots on the two chassis cross bars, and the two ends of the core gold correspond to the positions of the fixed cross bar and the movable cross bar respectively.

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