Frosted treatment device and process for polymer coating protective gloves

Abstract

The invention discloses a frosted treatment device and process for polymer coating protective gloves, the device comprises an upper fixed pool body and a lower movable pool body, a lifting folding assembly is arranged at the bottom of the lower movable pool body, and the lower movable pool body and the upper fixed pool body generate relative movement from an open state to a folded state through the lifting folding assembly; a movable channel of a hand mold is arranged between the lowest height position of the lower movable pool body and the upper fixed pool body, the bottom of the lower movable pool body is connected with a high-pressure fan through a flexible pipeline, and an air outlet of the flexible pipeline is connected with a plurality of groups of main gas-solid spraying heads and auxiliary spraying heads through a gas disperser in the lower movable pool body; each group of main gas-solid spraying heads and auxiliary spraying heads correspond to one group of hand molds, and salt particles are laid in the lower movable pool body. The preparation method has the advantages that sand surface treatment of the polymer coating is achieved through the salt particles, spraying is more comprehensive, and the prepared gloves have an excellent anti-slip effect.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing functional protective gloves, and particularly relates to a sanding treatment device and process for polymer-coated protective gloves. Background Art

[0002] With the progress of technology, society and the improvement of people's material requirements, people's requirements for protective products are constantly increasing. In addition to having functions of cutting resistance, impact resistance and abrasion resistance, protective products are also required to have high quality and versatility. For example, the gripping force of gloves in oily environments and dry environments on goods, etc. The requirement for the gripping force of gloves is due to the importance of the goods themselves, or the damage to human body parts caused by the dropping of goods, or the low work efficiency caused by inconvenient operation, etc. Therefore, it is required that the gloves increase their anti-slip performance in oily and dry environments. However, the anti-slip effect of the polymer coating impregnated in the protective gloves is not good, and to increase the anti-slip property of the polymer coating, organic combination of materials is needed. Currently, the material widely used for sanding rubber surfaces is salt particles. Existing salt spraying devices are easily blown outside the salt tank during production, causing unnecessary waste, corroding the machine, and bringing difficulties to cleaning; existing salt spraying devices perform non-discriminatory salt spraying as a whole by a blower, with poor spraying effects, and at the same time, they cannot spray well between the finger seams of the gloves. Summary of the Invention

[0003] The purpose of the present invention is to provide a sanding treatment device and process for polymer-coated protective gloves, which realize sand surface treatment of the polymer coating through salt particles, with more comprehensive spraying, and the prepared gloves have excellent anti-slip effects.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions:

[0005] A sanding treatment device for polymer-coated protective gloves, characterized in that it includes an upper fixed pool body and a lower movable pool body. A lifting and closing assembly is arranged at the bottom of the lower movable pool body. The lower movable pool body generates relative movement from an open state to a closed state with the upper fixed pool body through the lifting and closing assembly. An activity channel for the hand mold is arranged between the lower movable pool body at the lowest height position and the upper fixed pool body. An exhaust port is arranged on the side wall of the upper fixed pool body away from the hand mold, and a filter screen is arranged in the discharge port. The bottom of the lower movable pool body is connected to a high-pressure blower through a flexible pipe. The air outlet of the flexible pipe is connected to multiple groups of main air-solid injection heads and auxiliary injection heads through a gas distributor inside the lower movable pool body. Each group of main air-solid injection heads and auxiliary injection heads corresponds to a group of hand molds. The main air-solid injection heads are fixedly arranged on the lower movable pool body below the palm of the glove on the hand mold, and the auxiliary injection heads are fixedly arranged on the lower movable pool body at the relative positions of the finger seams at the front end of the hand mold. Salt particles are laid in the lower movable pool body.

[0006] Preferably, the lifting and closing assembly includes a lifting oil cylinder, four fixed columns and four guide rods. The guide rods are symmetrically and fixedly installed at the four corners of the bottom of the lower movable tank body. The fixed columns are fixedly installed on the ground. A guide groove is vertically formed in the fixed column, and the guide rod is correspondingly movably arranged in the guide groove. The lifting oil cylinder is arranged on the ground at the center of the bottom of the lower movable tank body, and the output end of the lifting oil cylinder is fixedly connected to the bottom of the movable tank body.

[0007] Preferably, a plurality of positioning grooves are formed in the side wall of the lower movable tank body close to the wrist of the hand mold. When the lower movable tank body and the upper fixed tank body are in the closed state, the near hand mold wrist is located in the positioning groove.

[0008] Preferably, movable grooves parallel to the inner wall are formed on both sides of each positioning groove on the inner wall of the lower movable tank body. Two sealing movable plates are relatively movably arranged in the movable groove. A slot fitted to the wrist of the hand mold is formed between the two sealing movable plates. An elastic sealing strip is pasted on the inner side of the slot. A movable block is fixedly installed at the bottom of the sealing movable plate. A threaded rod penetrates through the interiors of the two movable blocks at each positioning groove. The left and right parts of the threaded rod are symmetrically provided with clockwise threads and counterclockwise threads. The inner parts of the two movable blocks are respectively in threaded transmission connection with the left and right parts of the threaded rod to perform synchronous centering movement. Adjacent threaded rods are fixedly connected, and each threaded rod is installed in the lower movable tank body through a bearing seat. One side of the outermost threaded rod penetrates through the inner wall of the lower movable tank body and is connected with a driving motor through a bevel gear.

[0009] Preferably, a plurality of collision flow blocking plates are arranged at the exhaust port. The collision flow blocking plates are L-shaped right-angle plates, which are fixedly installed in an array between the inner walls of the upper fixed tank body. The openings of each layer of collision flow blocking plates face the same direction, and the openings of the upper and lower adjacent collision flow blocking plates are oppositely arranged in the reverse direction.

[0010] Preferably, an obliquely arranged collecting plate is fixedly installed below the collision flow blocking plate.

[0011] Preferably, a wire mesh plate is obliquely laid below the lower movable tank body. The injection port of the main gas-solid injector is arranged at the lowermost end of the wire mesh plate. The salt particles are laid on the wire mesh plate. Inside the main gas-solid injector, an air flow inlet, a mixing chamber, an acceleration chamber and a diffusion chamber are sequentially arranged along the air flow direction on the same axis. The inner diameter of the acceleration chamber is smaller than the inner diameters of the mixing chamber and the diffusion chamber. A solid phase inlet is further formed above the mixing chamber close to the air flow inlet side. A slope is arranged at the bottom of the lower movable tank body at the solid phase inlet.

[0012] Preferably, a fixed seat with an upper opening is fixedly installed below the lower movable tank body at the position of the auxiliary injector. The front end of the fixed seat is an orifice plate, and the upper end of the orifice plate is attached to the bottom of the collecting plate in the closed state.

[0013] Preferably, a reciprocating guiding assembly is further provided at the front end of the orifice plate. The reciprocating guiding assembly includes a track, a movable strip, guiding inner bars, guiding outer bars and a driving motor. There are two opposite groups of tracks, and both ends are fixedly connected to the inner wall of the lower movable pool. The movable strip is movably arranged in the track through movable rollers. Movable spray nozzles are opened at corresponding positions of each group of secondary spray heads in the movable strip. The guiding inner bars are movably inserted into the guiding outer bars. The outer end of the guiding inner bar is vertically rotatably connected to the inside of the movable spray nozzle. The outer end of the guiding outer bar is vertically rotatably connected to the outside of the orifice plate. A reciprocating movable groove is opened in the middle of the movable strip. A driving disk is movably arranged in the reciprocating movable groove. Sawteeth are symmetrically and parallelly opened on the upper and lower opposite side walls in the reciprocating movable groove. Multiple protruding clamping columns are arranged at half of the driving disk. The distances from the multiple clamping columns to the center of the driving disk are the same, and the distances between adjacent clamping columns and the distances between adjacent sawteeth are also the same. The driving motor is fixedly installed outside the lower movable pool, and the driving disk is fixedly connected to the output end of the driving motor.

[0014] A frosting treatment process for a polymer-coated protective glove, characterized by comprising the following steps: First, drive the glove sleeved on a hand mold and impregnated with a polymer coating with or without bubbles to a proper position directly above the lower movable pool. Drive the lifting and closing assembly to close the upper fixed pool and the lower movable pool. Then, seal the hand mold through the sealing movable plate. At this time, the main air-solid spray head is facing the palm of the glove, and the secondary spray head is facing the finger seams at the front end of the glove. Turn on the high-pressure blower, control the air pressure to be 1-3 kg, and the opening time to be 1-5 s. Inhale salt particles through the main air-solid spray head, drive the salt particles at the bottom of the lower movable pool, and spray them on the polymer coating below the glove. At the same time, the secondary spray head sprays to drive the salt particles in the fixing seat, and the reciprocating guiding assembly is used to comprehensively spray each finger seam at the front end of the glove horizontally. Part of the salt particles driven by the air flow quickly deposit and fall into the fixing seat after passing through multiple collision and flow-blocking plates. After the spraying is completed, drive the lifting and closing assembly to separate the upper fixed pool and the lower movable pool, and the glove after spraying leaves above the lower movable pool.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The present invention can spray the glove more comprehensively through the frosting treatment device. The present invention separately configures a main air-solid spray head and a secondary spray head for each hand mold, so as to comprehensively and finely spray the polymer coating.

[0017] 2. The present invention sucks salt grains through the main gas-solid injection head, drives the salt grains at the bottom of the lower movable pool body, sprays them at the polymer coating below the glove, and then drives the salt grains in the fixed seat through the secondary injection head. Through the reciprocating guiding component, the fingers of the glove at the front end are comprehensively sprayed horizontally, and the spraying effect is better.

[0018] 3. The spraying process of the present invention is carried out in a completely closed cycle state for salt grains, which will not affect the surrounding environment. Moreover, the device only performs a closed treatment on the glove inside the hand mold and does not include external track equipment. The device is miniaturized, the spraying is refined, while reducing the waste of salt grains and lowering the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the structure at the side wall of the lower movable pool body near the wrist of the hand mold in the present invention;

[0021] Figure 3 is a schematic diagram of the main gas-solid injection head structure in the present invention;

[0022] Figure 4 is a schematic diagram of the connection structure between the inner guiding grid bars and the outer guiding grid bars in the reciprocating guiding component of the present invention;

[0023] Figure 5 is a schematic diagram of the specific structure of the reciprocating guiding component in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following further describes the specific embodiments of the present invention with reference to the drawings. This embodiment does not constitute a limitation to the present invention.

[0025] As Figures 1 to 5 shown, a frosting treatment device for a polymer-coated protective glove includes an upper fixed pool body 1 and a lower movable pool body 2. A lifting and closing assembly is provided at the bottom of the lower movable pool body 2. The lower movable pool body 2 generates a relative movement from an open state to a closed state with the upper fixed pool body 1 through the lifting and closing assembly. An activity passage for the hand mold 3 is provided between the lower movable pool body 2 at the lowest height position and the upper fixed pool body 1. An exhaust port 4 is provided on the side wall of the upper fixed pool body 1 away from the hand mold 3, and a filter screen is provided in the discharge port. The bottom of the lower movable pool body 2 is connected to a high-pressure blower 6 through a flexible pipe 5. The air outlet of the flexible pipe 5 is connected to multiple main gas-solid injection heads 8 and secondary injection heads 9 through a gas distributor 7 inside the lower movable pool body 2. Each group of main gas-solid injection heads 8 and secondary injection heads 9 corresponds to a group of hand molds 3. The main gas-solid injection heads 8 are fixedly arranged on the lower movable pool body 2 below the palm of the glove on the hand mold 3, and the secondary injection heads 9 are fixedly arranged on the lower movable pool body 2 opposite to the finger gaps at the front end of the hand mold 3. Salt grains are laid in the lower movable pool body 2.

[0026] The lifting and closing assembly includes a lifting oil cylinder 10, four groups of fixed columns 11 and four groups of guide rods 12. The guide rods 12 are symmetrically and fixedly installed at the four corners of the bottom of the lower movable pool body 2. The fixed columns 11 are fixedly installed on the ground. A guide groove is vertically opened in the fixed column 11, and the guide rod 12 is correspondingly movably arranged in the guide groove. The lifting oil cylinder 10 is arranged on the ground at the center of the bottom of the lower movable pool body 2, and the output end of the lifting oil cylinder 10 is fixedly connected to the bottom of the movable pool body.

[0027] A plurality of groups of positioning grooves 13 are opened on the side wall of the lower movable pool body 2 close to the wrist of the hand mold 3. When the lower movable pool body 2 and the upper fixed pool body 1 are in the closed state, the part near the wrist of the hand mold 3 is located in the positioning grooves 13.

[0028] On both sides of each group of positioning grooves 13 on the inner wall of the lower movable pool body 2, centering movable grooves 14 parallel to the inner wall are opened. Two groups of sealing movable plates 15 are relatively movably arranged in the centering movable grooves 14. A slot fitting the wrist of the hand mold 3 is opened between the two groups of sealing movable plates 15, and an elastic sealing strip 16 is pasted on the inner side of the slot. A movable block 17 is fixedly installed at the bottom of the sealing movable plate 15. A threaded rod 18 penetrates through the inside of the two movable blocks 17 at each group of positioning grooves 13. The left and right parts of the threaded rod 18 are symmetrically provided with clockwise threads and counterclockwise threads. The inner parts of the two movable blocks 17 are respectively in threaded transmission connection with the left and right parts of the threaded rod 18 to perform synchronous centering movement. Adjacent threaded rods 18 are fixedly connected, and each group of threaded rods 18 is installed in the lower movable pool body 2 through a bearing seat. One side of the outermost threaded rod 18 penetrates through the inner wall of the lower movable pool body 2 and is connected with a driving motor 19 through a bevel gear.

[0029] A plurality of groups of collision flow blocking plates 20 are arranged at the exhaust port 4. The collision flow blocking plates 20 are L-shaped right-angle plates. The collision flow blocking plates 20 are fixedly installed in an array between the inner walls of the upper fixed pool body 1. The openings of each layer of collision flow blocking plates 20 face the same direction, and the openings of the upper and lower adjacent collision flow blocking plates 20 face opposite directions.

[0030] A wire mesh plate 22 is obliquely laid below the lower movable pool body 2. The injection port of the main gas-solid injection head 8 is arranged at the lowermost end of the wire mesh plate 22. Salt particles are laid on the wire mesh plate 22. Inside the main gas-solid injection head 8, an air flow inlet 23, a mixing chamber 24, an acceleration chamber 25 and a diffusion chamber 26 are sequentially arranged along the air flow direction on the same axis. The inner diameter of the acceleration chamber 25 is smaller than the inner diameters of the mixing chamber 24 and the diffusion chamber 26. A solid phase inlet 27 is also opened above one side of the mixing chamber 24 close to the air flow inlet 23. A slope is arranged at the bottom of the lower movable pool body 2 at the solid phase inlet 27.

[0031] A diagonally arranged collecting plate 21 is fixedly installed below the collision baffle 20. A fixing seat 28 with an upper opening is fixedly installed on the lower movable pool body 2 below the auxiliary spray head 9. The front end of the fixing seat 28 is an orifice plate 29, and the upper end of the orifice plate 29 is in contact with the bottom of the collecting plate 21 in the closed state.

[0032] A reciprocating guiding assembly is further arranged at the front end of the orifice plate 29. The reciprocating guiding assembly includes a track 30, a movable strip plate 31, a guiding inner grid strip 32, a guiding outer grid strip 33 and a driving motor 34. There are two opposite groups of tracks 30, and both ends are fixedly connected to the inner wall of the lower movable pool body 2. The movable strip plate 31 is movably arranged along the inside of the track 30 through movable rollers 35. Activity spray nozzles 36 are opened at corresponding positions of each group of auxiliary spray heads 9 in the movable strip plate 31. The guiding inner grid strip 32 is movably inserted inside the guiding outer grid strip 33. The outer end of the guiding inner grid strip 32 is vertically rotatably connected inside the activity spray nozzle 36, and the outer end of the guiding outer grid strip 33 is vertically rotatably connected to the outside of the orifice plate 29. A reciprocating activity groove 37 is opened in the middle of the movable strip plate 31. A driving disc 38 is movably arranged in the reciprocating activity groove 37. Sawteeth 39 are symmetrically and parallelly opened on the upper and lower opposite side walls in the reciprocating activity groove 37. Multiple protruding clamping columns 40 are arranged at half of the position of the driving disc 38. The distances from the multiple clamping columns 40 to the center of the driving disc 38 are the same, and the distances between adjacent clamping columns 40 and the distances between adjacent sawteeth 39 are also the same. The driving motor 34 is fixedly installed outside the lower movable pool body 2, and the driving disc 38 is fixedly connected to the output end of the driving motor 34.

[0033] A frosting treatment process for a polymer-coated protective glove includes the following steps: First, drive the glove with a polymer coating with or without bubbles impregnated on the hand mold 3 to an appropriate position directly above the lower movable pool body 2. Drive the lifting and closing assembly to close the upper fixed pool body 1 and the lower movable pool body 2. Then, seal the hand mold 3 through the sealing movable plate 15. At this time, the main gas-solid spray head 8 is facing the palm of the glove, and the auxiliary spray head 9 is facing the finger seams at the front end of the glove. Turn on the high-pressure blower 6, control the air pressure to be 1 - 3 kg, and the opening time to be 1 - 5 s. Inhale salt particles through the main gas-solid spray head 8, drive the salt particles at the bottom of the lower movable pool body 2, and spray them on the polymer coating below the glove. At the same time, the auxiliary spray head 9 sprays to drive the salt particles in the fixing seat 28, and through the reciprocating guiding assembly, comprehensively spray each finger seam at the front end of the glove horizontally. Part of the salt particles driven by the airflow quickly deposit and fall into the fixing seat 28 after passing through multiple groups of collision baffle plates 20. After the spraying is completed, drive the lifting and closing assembly to separate the upper fixed pool body 1 and the lower movable pool body 2, and the glove after spraying leaves above the lower movable pool body 2.

[0034] The following examples are polymer-coated gloves prepared by the above device and process:

[0035] Example 1

[0036] Preparation of glove cores: 18-gauge nylon and spandex glove cores;

[0037] Preparation of rubber compounds: Nitrile latex is configured to have a viscosity of 800 - 900 mPa·s, and the rubber compound has no air bubbles;

[0038] Preparation of coagulant: Methanol: Acetic acid volume ratio is 97:3;

[0039] Put the glove on the hand mold, preheat it in an oven at 60°C, then immerse it in the coagulant. After standing for 60 s, immerse it for molding. When immersing in the latex, stay in the latex for 2 s, slowly lift the hand mold, park for 30 s, and then evenly spray the surface of the coating with salt particles through this device and process;

[0040] Enter an oven at 120°C for drying and post-vulcanization, with the time controlled at 2 h. Finally, demold, wash, and dry to make safety gloves. For washing, use a large amount of tap water for washing. After dehydration, then wash it through the set program (feeding - pre-washing - main washing - rinsing - rinsing - rinsing - discharging) of the laundry cage in 7 processes. After washing, the finished gloves are obtained.

[0041] Example 2

[0042] Preparation of glove cores: 18-gauge nylon and spandex glove cores;

[0043] Preparation of rubber compounds: Nitrile latex is configured to have a viscosity of 800 - 900 mPa·s, and the rubber compound has air bubbles;

[0044] Preparation of coagulant: Methanol: Acetic acid volume ratio is 97:3;

[0045] Put the glove on the hand mold, preheat it in an oven at 60°C, then immerse it in the coagulant. After standing for 60 s, immerse it for molding. When immersing in the latex, stay in the latex for 2 s, slowly lift the hand mold, park for 30 s, and then evenly spray the surface of the coating with salt particles through this device and process;

[0046] Enter an oven at 120°C for drying and post-vulcanization, with the time controlled at 2 h. Finally, demold, wash, and dry to make safety gloves. For washing, use a large amount of tap water for washing. After dehydration, then wash it through the set program (feeding - pre-washing - main washing - rinsing - rinsing - rinsing - discharging) of the laundry cage in 7 processes. After washing, the finished gloves are obtained.

[0047] Example 3

[0048] Preparation of glove cores: 15-gauge nylon and spandex glove cores;

[0049] Preparation of rubber compounds: Waterborne polyurethane latex is configured to have a viscosity of 800 - 900 mPa·s, and the rubber compound has no air bubbles;

[0050] Coagulant preparation: Methanol: Acetic acid volume ratio is 97:3;

[0051] Put the glove on the hand mold, preheat it in an oven at 60 °C, then immerse it in the coagulant. After standing for 60 s, immerse it in the molding solution. When immersing in the latex, stay in the latex for 2 s, slowly lift the hand mold, park for 30 s, and then evenly spray the surface of the coating with salt particles through this device and process;

[0052] Put it into an oven at 120 °C for drying and post-vulcanization, control the time at 2 h, and finally demold, wash and dry to make safety gloves. For washing, use a large amount of tap water for washing. After dehydration, then use the set program of the laundry cage (feeding - pre-washing - main washing - rinsing - rinsing - rinsing - discharging) for 7 processes to wash, and the finished gloves can be obtained after washing.

[0053] Example 4

[0054] Glove core preparation: 15-needle nylon and spandex glove core;

[0055] Rubber compound preparation: The waterborne polyurethane latex is configured to have a viscosity of 800 - 900 mPa·s, and there are air bubbles in the rubber compound;

[0056] Coagulant preparation: Methanol: Acetic acid volume ratio is 97:3;

[0057] Put the glove on the hand mold, preheat it in an oven at 60 °C, then immerse it in the coagulant. After standing for 60 s, immerse it in the molding solution. When immersing in the latex, stay in the latex for 2 s, slowly lift the hand mold, park for 30 s, and then evenly spray the surface of the coating with salt particles through this device and process;

[0058] Put it into an oven at 120 °C for drying and post-vulcanization, control the time at 2 h, and finally demold, wash and dry to make safety gloves. For washing, use a large amount of tap water for washing. After dehydration, then use the set program of the laundry cage (feeding - pre-washing - main washing - rinsing - rinsing - rinsing - discharging) for 7 processes to wash, and the finished gloves can be obtained after washing.

[0059] Comparative Example 1

[0060] The difference between the obtained finished gloves and those of Example 1 is that the polymer-coated gloves are sprayed with salt particles through traditional equipment and processes, and for washing, a large amount of tap water is used for washing, and the remaining steps are the same as those of Example 1.

[0061] Comparative Example 2

[0062] The difference between the obtained finished gloves and those of Example 2 is that the polymer-coated gloves are sprayed with salt particles through traditional equipment and processes, and for washing, a large amount of tap water is used for washing, and the remaining steps are the same as those of Example 2.

[0063] Comparative Example 3

[0064] The difference between the obtained finished gloves and those of Example 3 lies in that industrial salt is used to spray the polymer-coated gloves through traditional equipment and processes, and a large amount of tap water is used for cleaning. The remaining steps are the same as those of Example 3.

[0065] Comparative Example 4

[0066] The difference between the obtained finished gloves and those of Example 4 lies in that salt grains are used to spray the polymer-coated gloves through traditional equipment and processes, and a large amount of tap water is used for cleaning. The remaining steps are the same as those of Example 4.

[0067] By conducting performance tests on the finished gloves prepared in the above examples and comparative examples, the test standards are as follows: The anti-slip test standard in a dry environment (in the worn state) is the TM438 standard, and the test weight is 4.5 KG; the anti-slip test standard (in the non-worn state) is specifically: the sample test temperature is controlled at 23 ± 2 °C, the sample is clamped at the mouth of the sample using a gripper, the dipped surface of the sample faces downward, the middle finger of the sample is straightened, pressed under the weight, the position of the weight is finely adjusted so that the alignment point of the weight coincides with the alignment point of the base, the hook of the anti-slip pulling agent hooks the clip of the sample, the anti-slip pulling agent switch is turned on, pulled backward, and the reading is taken. The test data is specifically shown in Table 1 below.

[0068] Table 1 Performance test data of the finished gloves of each example and comparative example

[0069]

[0070] As can be seen from the above table, under the dry conditions in the worn state, whether it is the Pull Force or the Catch Force, the larger the data, the worse the anti-slip effect. It can be seen from the test data that the performance of the finished gloves prepared by the device and process of the present invention is far better than that of the finished gloves of the comparative examples. At the same time, a more comprehensive spray is carried out at the finger seams at the front end of the gloves to form a frosted surface, realizing a more comprehensive spray of salt grains.

[0071] The present invention can spray the gloves more comprehensively through the frosting treatment device. The present invention separately configures a set of main air-solid injection heads and auxiliary injection heads for each group of hand molds, so as to carry out a comprehensive and fine spray on the polymer coating.

[0072] The present invention inhales salt grains through the main air-solid injection head, drives the salt grains at the bottom of the lower movable pool body, sprays them on the polymer coating under the gloves, and then drives the salt grains in the fixed seat through the spraying of the auxiliary injection head, and realizes a comprehensive spray on each finger seam at the front end of the gloves horizontally through the reciprocating guiding component, and the spraying effect is better.

[0073] The spraying process of the present invention is carried out in a completely closed cycle state for salt particles, without affecting the surrounding environment. Moreover, this device only performs closed treatment on the gloves inside the hand mold, does not include external track equipment, is miniaturized, has refined spraying, reduces the waste of salt particles, and lowers the cost.

[0074] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the technical solution of the present invention.

Claims

1. A frosting treatment device for a polymer-coated protective glove, characterized in that, It includes an upper fixed pool body and a lower movable pool body. A lifting and closing assembly is provided at the bottom of the lower movable pool body. The lower movable pool body generates a relative movement from an open state to a closed state with the upper fixed pool body through the lifting and closing assembly. An activity channel for the hand mold is provided between the lower movable pool body at the lowest height position and the upper fixed pool body. An exhaust port is provided on the side wall of the upper fixed pool body away from the hand mold. A filter screen is provided in the discharge port. The bottom of the lower movable pool body is connected to a high-pressure blower through a flexible pipe. The air outlet of the flexible pipe is connected to multiple groups of main air-solid injection nozzles and auxiliary injection nozzles through a gas distributor inside the lower movable pool body. Each group of main air-solid injection nozzles and auxiliary injection nozzles corresponds to a group of hand molds. The main air-solid injection nozzles are fixedly arranged on the lower movable pool body below the palm of the glove on the hand mold. The auxiliary injection nozzles are fixedly arranged on the lower movable pool body at the relative positions of the finger seams at the front end of the hand mold. Salt grains are laid inside the lower movable pool body.

2. The frosting treatment device for a polymer-coated protective glove according to claim 1, characterized in that: The lifting and closing assembly includes a lifting oil cylinder, four fixed columns and four guide rods. The guide rods are symmetrically and fixedly installed at the four corners of the bottom of the lower movable pool body. The fixed columns are fixedly installed on the ground. A guide groove is vertically opened inside the fixed column, and the guide rod is correspondingly movably arranged inside the guide groove. The lifting oil cylinder is arranged on the ground at the center of the bottom of the lower movable pool body. The output end of the lifting oil cylinder is fixedly connected to the bottom of the movable pool body.

3. The frosting treatment device for a polymer-coated protective glove according to claim 1, characterized in that: Multiple positioning grooves are opened on the side wall of the lower movable pool body close to the wrist of the hand mold. When the lower movable pool body and the upper fixed pool body are in the closed state, the part near the wrist of the hand mold is located in the positioning groove.

4. The frosting treatment device for a polymer-coated protective glove according to claim 3, characterized in that: Activity grooves parallel to the inner wall are opened on both sides of each positioning groove on the inner wall of the lower movable pool body. Two sealing movable plates are relatively movably arranged inside the activity grooves. A slot fitting the wrist of the hand mold is opened between the two sealing movable plates. An elastic sealing strip is pasted on the inner side of the slot. An activity block is fixedly installed at the bottom of the sealing movable plate. A threaded rod penetrates through the inside of the two activity blocks at each positioning groove. The left and right parts of the threaded rod are symmetrically provided with clockwise threads and counterclockwise threads. The inner parts of the two activity blocks are respectively in threaded transmission connection with the left and right parts of the threaded rod to perform synchronous centering movement. The adjacent threaded rods are fixedly connected, and each threaded rod is installed inside the lower movable pool body through a bearing seat. One side of the outermost threaded rod penetrates through the inner wall of the lower movable pool body and is connected to a driving motor through a bevel gear.

5. The frosting treatment device for a polymer-coated protective glove according to claim 1, characterized in that: Multiple collision flow-blocking plates are provided at the exhaust port. The collision flow-blocking plates are L-shaped right-angle plates. The collision flow-blocking plates are fixedly installed in an array between the inner walls of the upper fixed pool body. The openings of each layer of the collision flow-blocking plates face the same direction, and the openings of the adjacent upper and lower collision flow-blocking plates are oppositely arranged in the reverse direction.

6. The frosting treatment device for a polymer-coated protective glove according to claim 5, characterized in that: An obliquely arranged collecting plate is fixedly installed below the collision flow-blocking plate.

7. A frosting treatment device for a polymer-coated protective glove according to claim 1, characterized in that: A wire mesh is obliquely laid below the lower movable pool body. The jet orifice of the main gas-solid injector is arranged at the lowermost end of the wire mesh. The salt particles are laid on the wire mesh. Inside the main gas-solid injector, an air flow inlet, a mixing chamber, an acceleration chamber and a diffusion chamber are sequentially arranged on the same axis along the air flow direction. The inner diameter of the acceleration chamber is smaller than that of the mixing chamber and the diffusion chamber. An upper solid phase inlet is also opened above one side of the mixing chamber close to the air flow inlet. A slope is arranged at the bottom of the lower movable pool body at the solid phase inlet.

8. The frosting treatment device for a polymer-coated protective glove according to claim 1, characterized in that: A fixed seat with an upper opening is fixedly installed below the lower movable pool body under the secondary injector. The front end of the fixed seat is an orifice plate. The upper end of the orifice plate is attached to the bottom of the collecting plate in the closed state.

9. A frosting treatment device for a polymer-coated protective glove according to claim 8, characterized in that: A reciprocating guiding component is also arranged at the front end of the orifice plate. The reciprocating guiding component includes tracks, a movable strip plate, inner guiding grid bars, outer guiding grid bars and a driving motor. Two sets of opposite tracks are arranged and fixed to the inner wall of the lower movable pool body at both ends. The movable strip plate is movably arranged in the tracks through movable rollers. Activity nozzles are opened at corresponding positions of each group of secondary injectors in the movable strip plate. The inner guiding grid bars are movably inserted inside the outer guiding grid bars. The outer ends of the inner guiding grid bars are vertically rotatably connected to the inside of the activity nozzles. The outer ends of the outer guiding grid bars are vertically rotatably connected to the outside of the orifice plate. A reciprocating activity groove is opened in the middle of the movable strip plate. A driving disc is movably arranged in the reciprocating activity groove. Sawteeth are symmetrically and parallelly opened on the upper and lower opposite side walls in the reciprocating activity groove. Multiple protruding clamping columns are arranged at half of the driving disc. The distances from the multiple clamping columns to the center of the driving disc are the same, and the distances between adjacent clamping columns and adjacent sawteeth are also the same. The driving motor is fixedly installed outside the lower movable pool body, and the driving disc is fixedly connected to the output end of the driving motor.

10. A matte treatment process for a polymer-coated protective glove, characterized in that: It includes the following process: First, drive the glove with a bubble or bubble-free polymer coating impregnated on the hand mold to an appropriate position directly above the lower movable pool body. Drive the lifting and closing component to close the upper fixed pool body and the lower movable pool body. Then, seal the hand mold through the sealing movable plate. At this time, the main gas-solid injector is facing the palm of the glove, and the secondary injector is facing the finger seams at the front end of the glove. Turn on the high-pressure blower, control the air pressure to be 1-3 kg, and the opening time to be 1-5 s. Inhale the salt particles through the main gas-solid injector, drive the salt particles at the bottom of the lower movable pool body, and spray them on the polymer coating below the glove. At the same time, the secondary injector sprays to drive the salt particles in the fixed seat, and the reciprocating guiding component is used to comprehensively spray each finger seam at the front end of the glove horizontally. Some of the salt particles driven by the air flow quickly deposit and fall into the fixed seat after passing through multiple groups of collision and flow blocking plates. After the spraying is completed, drive the lifting and closing component to separate the upper fixed pool body and the lower movable pool body. The glove after spraying leaves above the lower movable pool body.

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