A sizing device for the production of nitrile gloves and its usage method

Abstract

The present invention relates to the technical field of nitrile glove production, and particularly relates to a sizing device for nitrile glove production and its use method, including a sizing conveying guide rail. A plurality of traction conveying frames are horizontally arranged in the middle of the sizing conveying guide rail, and all the traction conveying frames slide horizontally synchronously along the sizing conveying guide rail. The sizing device further includes: a closed cover plate, which is arranged below the traction conveying frame, and a glove sample mold is connected and arranged below the closed cover plate. A plurality of unit dipping cylinders arranged around the outer side of the circular conveying frame provided in the present invention each independently store a certain amount of glue solution to provide a separate dipping space for each glove sample mold. When the glove sample mold moves above the unit dipping cylinder, it slides downward to reduce its height so as to immerse into the unit dipping cylinder for sizing. Moreover, the closed cover plate on the glove sample mold also moves synchronously to buckle on the unit dipping cylinder to keep it closed and prevent sundries and dust from falling into it, which is beneficial to improving the overall production quality and reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of nitrile glove production, and in particular to a sizing device for nitrile glove production and its use method. Background Art

[0002] Nitrile rubber is prepared by emulsion polymerization of butadiene and acrylonitrile. Its products have excellent oil resistance, high wear resistance, and good heat resistance. Especially, it contains protein and can avoid allergic reactions to human skin caused by latex materials. Therefore, it is widely used in the production of disposable protective articles such as nitrile gloves. In the production process of nitrile gloves, the most important process is sizing or dipping. The dipping process determines the thickness, uniformity, and quality of glove production.

[0003] The patent with the application number CN202011600918.1 discloses a nitrile rubber glove and its dipping device, including a dipping tank, a conveying mechanism, a stirring mechanism, and a control mechanism. The conveying mechanism drives a plurality of hand molds to be dipped into the glue solution and makes the plurality of hand molds rotate in the glue solution, so that the glue solution is evenly attached to the surfaces of the plurality of hand molds, and is used to drive the plurality of hand molds to lift out of the glue solution. The stirring mechanism evenly stirs the nitrile glue solution and prevents the glue solution from precipitating and generating bubbles. The stirring mechanism and the conveying mechanism operate alternately. The control mechanism is electrically connected to the conveying mechanism and the stirring mechanism to drive the conveying mechanism and the stirring mechanism to operate.

[0004] However, it sizes the hand molds through several large dipping tanks. A plurality of hand molds move along the guide rail and are sequentially dipped into the dipping tanks to complete the sizing work. In order to facilitate the immersion of the hand molds, the tops of all dipping tanks are of an open structure, and it is very easy for sundries to fall into them. After the sundries fall into the dipping tanks, they not only affect the quality of sizing production, but also cause the glue solution inside the entire dipping tank to be contaminated. It is a waste to need to replace the glue solution as a whole, resulting in a relatively high overall production cost. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a sizing device for nitrile glove production and its use method to solve the problem that the tops of the dipping tanks are of an open structure, and it is very easy for sundries to fall into them, resulting in the glue solution inside the entire dipping tank being contaminated.

[0006] Based on the above purpose, the present invention provides a sizing device for nitrile glove production, including a sizing conveying guide rail. A plurality of traction conveying frames are horizontally arranged in the middle of the sizing conveying guide rail. All traction conveying frames slide horizontally synchronously along the sizing conveying guide rail. It further includes:

[0007] A closed cover plate is arranged below the traction conveying frame, and a glove sample mold is connected below the closed cover plate;

[0008] The circulating conveying rack is horizontally arranged below the glue-applying conveying guide rail. A plurality of unit dipping cylinders are slidably connected around the outer side of the circulating conveying rack. When the unit dipping cylinders move along the circulating conveying rack to below the glue-applying conveying guide rail, they keep synchronous movement with the traction conveying rack one by one. A communicating opening is arranged at the top of the unit dipping cylinder, and the sizes of the closing cover plate and the communicating opening are matched with each other;

[0009] The feeding conveying rack is arranged parallel to the upper part of the circulating conveying rack. The feeding conveying rack is located on the opposite side of the glue-applying conveying guide rail. A plurality of feeding conveying pipes are arranged in the middle of the feeding conveying rack. A glue liquid conveying pipe is connected above the feeding conveying pipe. The outer end of the glue liquid conveying pipe is connected with a glue liquid storage tank. A glue liquid conveying pump is arranged in the middle of the glue liquid conveying pipe;

[0010] The glue-applying conveying guide rail is successively provided with a descending conveying section, a dipping conveying section and a lifting exhaust section from front to back. When the traction conveying rack slides along the glue-applying conveying guide rail, it lowers its height along the descending conveying section and keeps the lowered height while translating along the dipping conveying section, and then is lifted to the original height by the lifting exhaust section.

[0011] Furthermore, a circulating recovery tank is arranged directly below the feeding conveying rack. When the unit dipping cylinders move along the circulating conveying rack to the opposite side of the glue-applying conveying guide rail, they are located directly below the feeding conveying pipes and directly above the circulating recovery tank. The lower part of the circulating recovery tank is connected to the top of the glue liquid storage tank. An intercepting filter screen is arranged between the circulating recovery tank and the glue liquid storage tank. A horizontal stirring rod is horizontally rotatably arranged inside the glue liquid storage tank. A plurality of stirring blades are connected around the outer side of the horizontal stirring rod. A stirring motor is arranged at the shaft end of the horizontal stirring rod.

[0012] Furthermore, a discharging opening is arranged at the bottom of the unit dipping cylinder. A discharging cover plate is horizontally fitted and slidably arranged in the middle of the discharging opening. A linkage magnet is arranged at the rear end of the discharging cover plate. A closing spring is arranged at the rear side of the linkage magnet. A discharging magnet is arranged in the middle of the circulating recovery tank. When the unit dipping cylinders move along the circulating conveying rack to directly above the circulating recovery tank, the discharging magnet pulls the discharging cover plate to slide backward through the linkage magnet to open the discharging opening.

[0013] Furthermore, an elastic airbag is arranged inside the unit dipping cylinder. The elastic airbag is of an annular cylinder structure. The outer wall of the elastic airbag is mutually attached and connected with the inner wall of the unit dipping cylinder. An inflation interface is arranged in the middle of the elastic airbag.

[0014] Further, an air extraction piston is connected and arranged below the traction conveying frame. A return spring is arranged in the middle of the air extraction piston. An air extraction sleeve is nested and slidably arranged outside the air extraction piston. Limiting air inlet holes and limiting air outlet holes are respectively arranged on the upper and lower sides of the side wall of the air extraction sleeve. The inner and outer sides of the air extraction sleeve are communicated with each other through the limiting air inlet holes and the limiting air outlet holes. A one-way ventilation valve is arranged in the middle of the limiting air outlet hole. A central ventilation hole is arranged at the center of the bottom of the air extraction sleeve. The inside of the air extraction sleeve is communicated with the lower part of the closed cover plate through the central ventilation hole.

[0015] Further, limiting convex blocks are arranged on both the left and right sides of the closed cover plate. Contact rollers are arranged in the middle of the limiting convex blocks. A guiding and limiting frame is arranged between the glue application conveying guide rail and the traction conveying frame. The guiding and limiting frame and the limiting convex blocks are arranged corresponding to each other. When the traction conveying frame slides along the glue application conveying guide rail to the dipping and gluing conveying section, the limiting convex blocks are located below the guiding and limiting frame.

[0016] Further, the guiding and limiting frame is sequentially provided with a horizontal guiding section and an inclined reset section from front to back. The horizontal guiding section is located directly below the dipping and gluing conveying section and the lifting and exhausting section. The inclined reset section is inclined from low to high.

[0017] Further, a rotary connection sleeve is arranged between the closed cover plate and the glove sample mold. The closed cover plate and the glove sample mold are rotationally connected through the rotary connection sleeve. The closed cover plate is rotationally connected with the air extraction sleeve through the rotary connection sleeve.

[0018] Further, a rotary gear is arranged in the middle of the rotary connection sleeve. A horizontal rack is arranged in the middle of the guiding and limiting frame. When the traction conveying frame slides along the glue application conveying guide rail to the dipping and gluing conveying section, the rotary gear meshes with the horizontal rack.

[0019] A method for using a glue application device for producing nitrile gloves includes the following steps:

[0020] When the traction conveyor frame drives the glove sample mold to slide horizontally synchronously along the glue application conveyor guide rail to above the circulating conveyor frame, it then slides downward along the descending conveyor section to reduce its height. At this time, the glove sample mold and the unit dipping cylinder are arranged corresponding to each other and move synchronously. The glove sample mold naturally enters the inside of the unit dipping cylinder through the communicating opening downward to immerse in the glue liquid contained in the unit dipping cylinder for glue application. And the closing cover plate on the glove sample mold also moves synchronously and buckles on the unit dipping cylinder, and the communicating opening at the top of the unit dipping cylinder is closed by the closing cover plate, so that the unit dipping cylinder remains closed during the dipping process, which can prevent foreign objects and dust from falling into it. At the same time, the limiting convex block arranged on the closing cover plate moves to the lower side of the guiding and limiting frame to limit the closing cover plate through the guiding and limiting frame and the limiting convex block, so that the closing cover plate cannot move upward and always buckles on the top of the unit dipping cylinder. Then the traction conveyor frame will drive the glove sample mold to move to the lifting and exhaust section. The traction conveyor frame gradually rises along the lifting and exhaust section. At this time, the closing cover plate is still limited by the guiding and limiting frame. The traction conveyor frame will drive the air extraction piston connected below it to move upward synchronously, while the air extraction sleeve connected to the closing cover plate and the glove sample mold remains at a constant height. The air extraction piston and the air extraction sleeve form an air extraction mechanism to extract the air in the unit dipping cylinder through the central ventilation hole, reduce the air pressure inside the unit dipping cylinder, and discharge the bubbles in the glue liquid inside the unit dipping cylinder. After the traction conveyor frame drives the air extraction piston to move upward a certain distance, the air extraction piston will cross the limiting air intake hole arranged on the upper side of the side wall of the air extraction sleeve. At this time, the inside and outside of the air extraction sleeve are interconnected through the limiting air intake hole, and the air pressure inside the air extraction sleeve and the unit dipping cylinder returns to normal. And the closing cover plate also moves synchronously to the inclined reset section of the guiding and limiting frame, moves upward and resets along the inclined reset section under the traction of the reset spring, and separates from the unit dipping cylinder. At this time, the glove sample mold is also lifted synchronously to complete the dipping process.

[0021] Advantages of the present invention: As can be seen from the above, a glue application device for producing nitrile gloves provided by the present invention drives the glove sample mold to slide horizontally synchronously along the glue application conveyor guide rail through the traction conveyor frame. A plurality of unit dipping cylinders arranged around the outside of the circulating conveyor frame independently store a certain amount of glue liquid, which can provide a separate dipping space for each glove sample mold. When the glove sample mold moves above the unit dipping cylinder, it slides downward along the descending conveyor section to reduce its height to immerse in the inside of the unit dipping cylinder for glue application. And the closing cover plate on the glove sample mold also moves synchronously and buckles on the unit dipping cylinder to keep it closed during the dipping process, preventing foreign objects and dust from falling into it. Then the glove sample mold is lifted upward along the lifting and exhaust section to separate from the unit dipping cylinder to complete the glue application work. Thus, it can realize independent glue application work for each glove sample mold, avoid interference with each other, and only need to replace the glue liquid in the corresponding unit dipping cylinder after foreign objects fall into one unit dipping cylinder, without polluting the glue liquid in the glue liquid storage tank, which is beneficial to improving the overall production quality and reducing the production cost. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Internal structure schematic diagram of an embodiment of the present invention;

[0024] Figure 2 Front structure schematic diagram of an embodiment of the present invention;

[0025] Figure 3 Structure schematic diagram of the glue application conveying guide rail of an embodiment of the present invention;

[0026] Figure 4 Structure schematic diagram of the circulating conveying rack of an embodiment of the present invention;

[0027] Figure 5 Structure schematic diagram of the traction conveying rack of an embodiment of the present invention;

[0028] Figure 6 Structure schematic diagram of the air extraction piston of an embodiment of the present invention;

[0029] Figure 7 Structure schematic diagram of the air extraction sleeve of an embodiment of the present invention;

[0030] Figure 8 Internal structure schematic diagram of the unit dipping cylinder of an embodiment of the present invention;

[0031] Figure 9 Bottom structure schematic diagram of the unit dipping cylinder of an embodiment of the present invention;

[0032] Figure 10 Structure schematic diagram of the glue storage tank of an embodiment of the present invention.

[0033] The labels in the figure are:

[0034] 1. Glue application conveying guide rail; 101. Descending conveying section; 102. Glue dipping conveying section; 103. Lifting and exhausting section; 104. Traction conveying chain; 2. Guide and limit frame; 201. Horizontal guiding section; 202. Inclined reset section; 203. Horizontal rack; 3. Traction conveying frame; 301. Air extraction piston; 302. Reset spring; 4. Air extraction sleeve; 401. Limit air intake hole; 402. Limit air exhaust hole; 403. One-way ventilation valve; 404. Central ventilation hole; 5. Sealing cover plate; 501. Glove-like mold; 502. Rotary connecting sleeve; 503. Rotary gear; 504. Limit convex block; 505. Contact roller; 6. Circulating conveying frame; 601. Circulating cover plate; 602. Circulating recovery tank; 603. Intercepting filter screen; 7. Glue storage tank; 701. Horizontal stirring rod; 702. Stirring blade; 703. Stirring motor; 8. Unit glue dipping cylinder; 801. Connecting opening; 802. Elastic airbag; 803. Inflation interface; 804. Discharge opening; 805. Discharge cover plate; 806. Sealing spring; 807. Linkage magnet; 9. Loading conveying frame; 901. Loading conveying pipe; 902. Glue conveying pipe; 903. Glue conveying pump; 904. Discharge magnet. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with specific embodiments.

[0036] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "include" or "comprise" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connect" or "be connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "up", "down", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0037] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, a sizing device for nitrile glove production includes a sizing conveyor guide rail 1. A plurality of traction conveyor frames 3 are horizontally arranged in the middle of the sizing conveyor guide rail 1. All the traction conveyor frames 3 slide horizontally synchronously along the sizing conveyor guide rail 1. It further includes:

[0038] A closed cover plate 5 is arranged below the traction conveyor frame 3. A glove sample mold 501 is connected and arranged below the closed cover plate 5;

[0039] A circulating conveyor frame 6 is horizontally arranged below the sizing conveyor guide rail. A plurality of unit dipping cylinders 8 are slidably connected in a surrounding manner on the outer side of the circulating conveyor frame 6. When the unit dipping cylinders 8 move along the circulating conveyor frame 6 to the lower part of the sizing conveyor guide rail 1, they correspond to the traction conveyor frames 3 one by one and move synchronously. A communication opening 801 is arranged at the top of the unit dipping cylinder 8. The sizes between the closed cover plate 5 and the communication opening 801 are matched with each other;

[0040] A feeding conveyor frame 9 is arranged parallel to the upper part of the circulating conveyor frame 6. The feeding conveyor frame 9 is located on the opposite side of the sizing conveyor guide rail 1. A plurality of feeding conveyor pipes 901 are arranged in the middle of the feeding conveyor frame 9. A glue liquid conveyor pipe 902 is connected above the feeding conveyor pipe 901. The outer end of the glue liquid conveyor pipe 902 is connected with a glue liquid storage tank 7. A glue liquid conveyor pump 903 is arranged in the middle of the glue liquid conveyor pipe 902;

[0041] The sizing conveyor guide rail 1 is successively provided with a descending conveyor section 101, a dipping conveyor section 102 and a lifting and exhaust section 103 from front to back. When the traction conveyor frame 3 slides along the sizing conveyor guide rail 1, it lowers its height along the descending conveyor section 101 and translates along the dipping conveyor section 102 while maintaining the lowered height, and then is lifted to the original height by the lifting and exhaust section 103.

[0042] In this embodiment, the device drives the glove sample mold 501 to slide horizontally along the glue application conveying guide rail 1 through the traction conveying frame 3. There are multiple unit dipping cylinders 8 arranged around the outside of the circulating conveying frame 6 below the glue application conveying guide rail 1. At the same time, the device stores glue in the closed glue storage tank 7. When the unit dipping cylinders 8 are conveyed along the circulating conveying frame 6, they will pass by the feeding conveying frame 9. The glue delivery pump 903 can deliver the glue stored in the glue storage tank 7 to the feeding delivery pipe 901 in the feeding conveying frame 9, and inject a certain amount of glue into it when the unit dipping cylinder 8 passes by the feeding delivery pipe 901, so that each unit dipping cylinder 8 can independently store a certain amount of glue to provide a separate dipping space for each glove sample mold 501. At the same time, a circulating cover plate 601 is also arranged on the circulating conveying frame 6. When the unit dipping cylinders 8 are conveyed along the circulating conveying frame 6, the tops are shielded by the circulating cover plate 601 to prevent foreign objects from falling into them. When the traction conveying frame 3 drives the glove sample mold 501 to the upper part of the circulating conveying frame 6 along the glue application conveying guide rail 1, it can slide downward along the descending conveying section 101 to reduce the height. At this time, the glove sample mold 501 and the unit dipping cylinder 8 are arranged corresponding to each other and move synchronously. Therefore, the glove sample mold 501 naturally enters the inside of the unit dipping cylinder 8 downward through the communication opening 801 to immerse in the glue contained in the unit dipping cylinder 8 for glue application. And the closing cover plate 5 on the glove sample mold 501 also moves synchronously to buckle on the unit dipping cylinder 8, and closes the communication opening 801 at the top of the unit dipping cylinder 8 through the closing cover plate 5, so that the unit dipping cylinder 8 remains closed during the dipping process, which can prevent foreign objects and dust from falling into it. Then the traction conveying frame 3 drives the glove sample mold 501 to pass through the horizontal dipping conveying section 102, keeping the glove sample mold 501 immersed in the glue for a period of time. Then the glove sample mold 501 can be lifted upward along the lifting exhaust section 103 to separate from the unit dipping cylinder 8, completing the glue application work. Thus, each glove sample mold 501 can independently perform the glue application work, avoiding interference with each other. And if foreign objects fall into one unit dipping cylinder 8, only the glue in the corresponding unit dipping cylinder 8 needs to be replaced and processed, without polluting the glue in the glue storage tank 7, which is beneficial to improving the overall production quality and reducing the production cost.

[0043] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, optionally, a recycling tank 602 is provided directly below the loading conveyor rack 9. When the unit dipping cylinder 8 moves along the circulating conveyor rack 6 to the opposite side of the glue application conveyor rail 1, it is located directly below the loading conveyor pipe 901 and directly above the recycling tank 602. The lower part of the recycling tank 602 is connected to the top of the glue storage tank 7. An intercepting filter screen 603 is provided between the recycling tank 602 and the glue storage tank 7. A horizontal stirring rod 701 is horizontally rotatably arranged inside the glue storage tank 7. A plurality of stirring blades 702 are connected around the outer side of the horizontal stirring rod 701. A stirring motor 703 is provided at the shaft end of the horizontal stirring rod 701. The device can independently store a certain amount of glue through the unit dipping cylinder 8, enabling each glove sample mold 501 to independently perform the glue application work. When the unit dipping cylinder 8 moves along the circulating conveyor rack 6 to the opposite side of the glue application conveyor rail 1, it is located directly below the loading conveyor pipe 901 and directly above the recycling tank 602, facilitating the supplementary injection of glue into the unit dipping cylinder 8 through the loading conveyor pipe 901. Moreover, the remaining glue in the unit dipping cylinder 8 can also be directly introduced into the recycling tank 602, collected through the recycling tank 602, and recycled into the glue storage tank 7 after being filtered by the intercepting filter screen 603, so as to maintain the uniformity and temperature of the glue. The horizontal stirring rod 701 in the glue storage tank 7 can drive the stirring blades 702 to rotate through the stirring motor 703 to stir the glue stored in the glue storage tank 7 and improve the uniformity of the glue.

[0044] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, preferably, a discharge opening 804 is provided at the bottom of the unit glue dipping cylinder 8, a discharge cover plate 805 is horizontally and slidably provided in the middle of the discharge opening 804, a linkage magnet 807 is provided at the rear end of the discharge cover plate 805, a closing spring 806 is provided at the rear side of the linkage magnet 807, and a discharge magnet 904 is provided in the middle of the circulation recovery groove 602. When the unit glue dipping cylinder 8 moves along the circulation conveying frame 6 to the top of the circulation recovery groove 602, the discharge magnet 904 pulls the discharge cover plate 805 to slide to the rear side through the linkage magnet 807 to open the discharge opening 804. The device can independently store a certain amount of glue liquid through the unit glue dipping cylinder 8, so that each glove sample mold 501 can perform the glue application work independently, and the unit glue dipping cylinder 8 moves along the circulation conveying frame 6 to the circulation recovery groove 602. When the unit glue dipping cylinder 8 is directly above the circular recovery groove 602, the unloading magnet 904 pulls the unloading cover plate 805 to slide to the rear side through the linkage magnet 807 to open the unloading opening 804, so that the remaining glue liquid in the unit glue dipping cylinder 8 can also be directly introduced into the circulation recovery groove 602, collected by the circulation recovery groove 602, and filtered through the interception filter screen 603 and recovered to the glue liquid storage box 7, so as to maintain the uniformity and temperature of the glue liquid, and at the same time realize the automatic unloading of the unit glue dipping cylinder 8, which is more convenient to use. When the unit glue dipping cylinder 8 continues to move away from the unloading magnet 904, the closing spring 806 will push the unloading cover plate 805 to slide back to close the unloading opening 804, so as to facilitate the subsequent replenishment of glue liquid into the unit glue dipping cylinder 8 through the loading and conveying pipe 901.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, preferably, an elastic airbag 802 is provided inside the unit dipping cylinder 8. The elastic airbag 802 is in a ring-shaped cylinder structure. The outer wall of the elastic airbag 802 is attached and connected to the inner wall of the unit dipping cylinder 8. An inflation interface 803 is provided in the middle of the elastic airbag 802. The device can independently store a certain amount of glue through the unit dipping cylinder 8, enabling each glove sample mold 501 to perform the gluing work independently. And an elastic airbag 802 is provided inside the unit dipping cylinder 8. The elastic airbag 802 can be inflated and deflated through the inflation interface 803 to expand or contract and adjust the volume size, thereby adjusting the size of the internal space occupied by the unit dipping cylinder 8, so as to facilitate adjustment according to the size of the glove sample mold 501 corresponding to the production gloves. When the glove sample mold 501 is small, the elastic airbag 802 can be inflated and expanded to reduce the volume of the unit dipping cylinder 8, enabling it to reach the required immersion depth with less glue, so as to adjust the amount of glue stored in each unit dipping cylinder 8 according to actual production needs, which is beneficial to improving production flexibility and reducing production costs. At the same time, the hollow elastic airbag 802 also constitutes a heat preservation layer, facilitating maintaining the temperature of the glue stored inside the unit dipping cylinder 8 constant, thereby improving the overall production quality.

[0046] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown in the figure, optionally, a suction piston 301 is connected and arranged below the traction conveying frame 3. A return spring 302 is arranged in the middle of the suction piston 301. A suction sleeve 4 is nested and slidably arranged outside the suction piston 301. Limit intake holes 401 and limit exhaust holes 402 are respectively arranged on the upper and lower sides of the side wall of the suction sleeve 4. The inside and outside of the suction sleeve 4 are communicated with each other through the limit intake holes 401 and the limit exhaust holes 402. A one-way ventilation valve 403 is arranged in the middle of the limit exhaust hole 402. A central ventilation hole 404 is arranged at the center of the bottom of the suction sleeve 4. The inside of the suction sleeve 4 is communicated with the lower part of the closing cover plate 5 through the central ventilation hole 404. Limit convex blocks 504 are arranged on both the left and right sides of the closing cover plate 5. A contact roller 505 is arranged in the middle of the limit convex block 504. A guiding and limiting frame 2 is arranged between the glue application conveying guide rail 1 and the traction conveying frame 3. The guiding and limiting frame 2 and the limit convex block 504 are arranged corresponding to each other. When the traction conveying frame 3 slides along the glue application conveying guide rail 1 to the dipping conveying section 102, the limit convex block 504 is located below the guiding and limiting frame 2. The guiding and limiting frame 2 is successively provided with a horizontal guiding section 201 and an inclined reset section 202 from front to back. The horizontal guiding section 201 is located directly below the dipping conveying section 102 and the lifting and exhaust section 103. The inclined reset section 202 is inclined from low to high. The device can independently store a certain amount of glue liquid through each unit dipping cylinder 8, so that each glove sample mold 501 independently performs the glue application work. When the glove sample mold 501 descends and immerses into the unit dipping cylinder 8, the closing cover plate 5 will also be buckled on the top of the unit dipping cylinder 8 synchronously, so that the unit dipping cylinder 8 remains closed during the dipping process, which can prevent foreign sundries and dust from falling into it. At the same time, the device is also provided with an air extraction mechanism composed of the suction sleeve 4 and the suction piston 301. After the glove sample mold 501 descends and immerses into the unit dipping cylinder 8 and the closing cover plate 5 closes the unit dipping cylinder 8, the traction conveying frame 3 then slides along the glue application conveying guide rail 1 to the dipping conveying section 102. The limit convex block 504 arranged on the closing cover plate 5 then moves to the lower side of the guiding and limiting frame 2 to limit the closing cover plate 5 through the guiding and limiting frame 2 and the limit convex block 504, so that the closing cover plate 5 cannot move upward and is always buckled on the top of the unit dipping cylinder 8. And the limit convex block 504 contacts with the guiding and limiting frame 2 through the contact roller 505 arranged in the middle, so as to reduce the friction force during the limit movement. Then the traction conveying frame 3 will drive the glove sample mold 501 to move to the lifting and exhaust section 103. The traction conveying frame 3 gradually rises along the lifting and exhaust section 103. However, since the closing cover plate 5 is still limited by the guiding and limiting frame 2 at this time, the traction conveying frame 3 will drive the suction piston 301 connected below it to move upward synchronously, while the suction sleeve 4 connected to the closing cover plate 5 and the glove sample mold 501 remains at a constant height. Thus, the suction piston 301 and the suction sleeve 4 form an air extraction mechanism to extract the air in the unit dipping cylinder 8 through the central ventilation hole 404, so as to reduce the internal air pressure of the unit dipping cylinder 8.Furthermore, air bubbles in the glue solution inside the unit dipping cylinder 8 can be discharged, which is beneficial to improving the quality of the dipping production of the glove sample mold 501. After the traction conveyor frame 3 drives the air extraction piston 301 to move upward a certain distance, the air extraction piston 301 will cross the limit air intake hole 401 provided on the upper side of the side wall of the air extraction sleeve 4, so that the inside and outside of the air extraction sleeve 4 communicate with each other through the limit air intake hole 401, and the air pressure inside the air extraction sleeve 4 and the unit dipping cylinder 8 returns to normal. Then, the closing cover plate 5 also moves to the inclined reset section 202 of the guiding and limiting frame 2, and can move upward and reset along the inclined reset section 202 under the traction of the reset spring 302, and is separated from the unit dipping cylinder 8. At this time, the glove sample mold 501 is also taken out synchronously, and the dipping process is completed.

[0047] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown in, optionally, a rotating connection sleeve 502 is provided between the closing cover plate 5 and the glove sample mold 501. The closing cover plate 5 and the glove sample mold 501 are rotationally connected through the rotating connection sleeve 502. The closing cover plate 5 is rotationally connected to the air extraction sleeve 4 through the rotating connection sleeve 502. A rotating gear 503 is provided in the middle of the rotating connection sleeve 502, and a horizontal rack 203 is provided in the middle of the guiding and limiting frame 2. When the traction conveyor frame 3 slides along the glue application conveyor rail 1 to the dipping conveyor section 102, the rotating gear 503 meshes with the horizontal rack 203. The device can independently store a certain amount of glue solution through the unit dipping cylinder 8, so that each glove sample mold 501 independently performs the glue application work. When the glove sample mold 501 descends and immerses into the unit dipping cylinder 8, the closing cover plate 5 will also be buckled on the top of the unit dipping cylinder 8 synchronously, so that the unit dipping cylinder 8 remains closed during the dipping process, and foreign objects and dust from the outside can be prevented from falling into it. The closing cover plate 5 and the glove sample mold 501 are rotationally connected through the rotating connection sleeve 502. When the traction conveyor frame 3 slides along the glue application conveyor rail 1 to the dipping conveyor section 102, the rotating gear 503 meshes with the horizontal rack 203, so that the glove sample mold 501 can be driven to rotate while translating, so as to improve the uniformity of the glue application on the glove sample mold 501.

[0048] When in use, first connect the corresponding pipelines of the device, and then the traction conveying chain 104 set in the glue conveying guide rail 1 can drive the traction conveying frame 3 to move along the glue conveying guide rail 1, and the traction conveying frame 3 drives the glove sample mold 501 to slide horizontally along the glue conveying guide rail 1 synchronously, and the unit dipping cylinder 8 is transported along the circulation conveying frame 6 through the feeding conveying frame 9, and the glue delivery pump 903 transports the glue stored in the glue storage box 7 to the feeding conveying pipe 901 in the feeding conveying frame 9, and injects a certain amount of glue into the unit dipping cylinder 8 when it passes through the feeding conveying pipe 901, so that each unit dipping cylinder 8 can independently store a certain amount of glue, and at the same time, the traction conveying frame 3 drives the glove sample mold 501 along the glue conveying guide rail 1 to the circulation conveying frame 6. When the glove sample mold 501 is above the feeding frame 6, it slides downward along the descending conveying section 101 to lower its height. At this time, the glove sample mold 501 and the unit dipping cylinder 8 are arranged corresponding to each other and keep moving synchronously. The glove sample mold 501 naturally enters the unit dipping cylinder 8 downward through the connecting opening 801 to be immersed in the glue contained in the unit dipping cylinder 8 for gluing, and the closing cover plate 5 on the glove sample mold 501 also moves synchronously and snaps on the unit dipping cylinder 8. The connecting opening 801 at the top of the unit dipping cylinder 8 is closed by the closing cover plate 5, so that the unit dipping cylinder 8 remains closed during the dipping process, which can prevent foreign debris and dust from falling into it. At the same time, the limiting protrusion 504 set on the closing cover plate 5 moves to the lower side of the guide limiting frame 2 to pass through the guide limiting frame 2 and The limiting protrusion 504 limits the closed cover plate 5, so that the closed cover plate 5 cannot move upward and is always fastened on the top of the unit dipping cylinder 8, and then the traction conveying frame 3 will drive the glove sample mold 501 to move to the lifting and exhaust section 103, and the traction conveying frame 3 will gradually rise along the lifting and exhaust section 103. The closed cover plate 5 is still limited by the guide limiting frame 2 at this time. The traction conveying frame 3 will drive the vacuum piston 301 connected below it to move upward synchronously, while the vacuum sleeve 4 connected to the closed cover plate 5 and the glove sample mold 501 maintains the same height. The vacuum piston 301 and the vacuum sleeve 4 constitute a vacuum mechanism to extract the air in the unit dipping cylinder 8 through the central vent hole 404, reduce the internal air pressure of the unit dipping cylinder 8, and discharge the air in the unit dipping cylinder 8 After the traction conveyor frame 3 drives the air extraction piston 301 to move upward for a certain distance, the air extraction piston 301 will pass over the limiting air inlet hole 401 set on the upper side of the side wall of the air extraction sleeve 4. At this time, the inside and outside of the air extraction sleeve 4 are connected to each other through the limiting air inlet hole 401, and the air pressure inside the air extraction sleeve 4 and the unit dipping cylinder 8 returns to normal, and the closed cover plate 5 also moves synchronously to the inclined reset section 202 of the guide limiting frame 2, and moves upward along the inclined reset section 202 through the traction of the reset spring 302 to reset, and separates from the unit dipping cylinder 8. At this time, the glove sample mold 501 is also synchronously proposed to complete the dipping process, and when the unit dipping cylinder 8 after dipping moves along the circulating conveyor frame 6 to the top of the circulating recovery groove 602 on the other side,The discharge magnet 904 pulls the discharge cover plate 805 to slide backward through the linkage magnet 807 to open the discharge opening 804, so that the remaining glue in the unit dipping cylinder 8 naturally flows into the recycling tank 602 for collection, and is filtered through the interception filter 603 and recycled into the glue storage box 7 to maintain the uniformity and temperature of the glue. The unit dipping cylinder 8 continues to move away from the discharge magnet 904, and the closing spring 806 pushes the discharge cover plate 805 to slide back to close the discharge opening 804, and then the glue is re-injected into the unit dipping cylinder 8 through the feeding conveying pipe 901, thus completing the entire working cycle.

[0049] A method for using a gluing device for producing nitrile gloves comprises the following steps:

[0050] When the traction conveyor frame 3 drives the glove sample mold 501 to slide horizontally along the gluing conveying guide rail 1 to the top of the circulating conveyor frame 6, it slides downward along the descending conveying section 101 to reduce its height. At this time, the glove sample mold 501 and the unit dipping cylinder 8 are arranged correspondingly to each other and keep moving synchronously. The glove sample mold 501 naturally enters the unit dipping cylinder 8 through the connecting opening 801 to be immersed in the glue liquid contained in the unit dipping cylinder 8 for gluing, and the closing cover plate 5 on the glove sample mold 501 also moves synchronously and is buckled on the unit dipping cylinder 8. The connecting opening 801 at the top of the unit dipping cylinder 8 is closed, so that the unit dipping cylinder 8 remains closed during the dipping process, which can prevent foreign debris and dust from falling into it. At the same time, the limiting protrusion 504 set on the closed cover plate 5 moves to the lower side of the guide limiting frame 2, so that the closed cover plate 5 is limited by the guide limiting frame 2 and the limiting protrusion 504, so that the closed cover plate 5 cannot move upward and is always buckled on the top of the unit dipping cylinder 8, and then the traction conveying frame 3 drives the glove sample mold 501 to move to the lifting exhaust section 103, and the traction conveying frame 3 is pulled along the lifting exhaust section 103. The air section 103 gradually rises, and the closed cover plate 5 is still limited by the guide limit frame 2 at this time. The traction conveyor frame 3 will drive the air extraction piston 301 connected below it to move upward synchronously, while the air extraction sleeve 4 connected to the closed cover plate 5 and the glove sample mold 501 keeps the same height. The air extraction piston 301 and the air extraction sleeve 4 constitute an air extraction mechanism to extract the air in the unit dipping tube 8 through the central vent hole 404, reduce the internal air pressure of the unit dipping tube 8, and discharge the bubbles in the glue liquid inside the unit dipping tube 8, while the traction conveyor frame 3 drives the air extraction piston 3 01 After moving upwards for a certain distance, the vacuum piston 301 will pass over the limiting air inlet hole 401 set on the upper side of the side wall of the vacuum sleeve 4. At this time, the inside and outside of the vacuum sleeve 4 are connected to each other through the limiting air inlet hole 401, and the internal air pressure of the vacuum sleeve 4 and the unit dipping cylinder 8 returns to normal, and the closed cover plate 5 also moves synchronously to the inclined reset section 202 of the guide limiting frame 2, and is pulled upward along the inclined reset section 202 by the reset spring 302 to reset, and is separated from the unit dipping cylinder 8. At this time, the glove sample mold 501 is also synchronously raised to complete the dipping process.

[0051] The sizing device for nitrile glove production provided by the present invention drives the glove sample mold 501 to slide horizontally synchronously along the sizing conveying guide rail 1 through the traction conveying frame 3. A plurality of unit dipping cylinders 8 arranged around the outer side of the circulating conveying frame 6 each independently store a certain amount of glue solution, which can provide a separate dipping space for each glove sample mold 501. When the glove sample mold 501 moves above the unit dipping cylinder 8, it slides downward along the descending conveying section 101 to reduce its height so as to immerse into the unit dipping cylinder 8 for sizing. And the closed cover plate 5 on the glove sample mold 501 also moves synchronously to buckle on the unit dipping cylinder 8 to keep it closed during the dipping process, preventing sundries and dust from falling into it. Then the glove sample mold 501 is lifted upward along the lifting exhaust section 103 to separate from the unit dipping cylinder 8, completing the sizing work. Thus, it can realize the independent sizing work for each glove sample mold 501, avoiding interference between each other. And after sundries fall into one unit dipping cylinder 8, only the glue solution in the corresponding unit dipping cylinder 8 needs to be replaced and processed, without polluting the glue solution in the glue solution storage tank 7, which is beneficial to improving the overall production quality and reducing the production cost.

[0052] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0053] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sizing device for nitrile glove production, comprising a sizing conveying guide rail (1), wherein a plurality of traction conveying frames (3) are horizontally arranged in the middle of the sizing conveying guide rail (1), and all the traction conveying frames (3) slide horizontally synchronously along the sizing conveying guide rail (1), characterized in that, Further included are: A closed cover plate (5) is arranged below the traction and conveying frame (3), and a glove-like mold (501) is connected and arranged below the closed cover plate (5); A circulating conveying frame (6) is horizontally arranged below the glue-applying conveying guide rail (1). A plurality of unit dipping cylinders (8) are slidably connected in a surrounding manner on the outer side of the circulating conveying frame (6). When the unit dipping cylinders (8) move along the circulating conveying frame (6) to be below the glue-applying conveying guide rail (1), they keep synchronous movement corresponding to the traction and conveying frame (3) one by one. A communication opening (801) is arranged at the top of the unit dipping cylinder (8), and the sizes between the closed cover plate (5) and the communication opening (801) are matched with each other; A feeding conveying frame (9) is arranged parallel to the upper side of the circulating conveying frame (6). The feeding conveying frame (9) is located on the opposite side of the glue-applying conveying guide rail (1). A plurality of feeding conveying pipes (901) are arranged in the middle of the feeding conveying frame (9). A glue liquid conveying pipe (902) is connected above the feeding conveying pipe (901). The outer end of the glue liquid conveying pipe (902) is connected with a glue liquid storage tank (7), and a glue liquid conveying pump (903) is arranged in the middle of the glue liquid conveying pipe (902); The glue-applying conveying guide rail (1) is sequentially provided with a descending conveying section (101), a dipping conveying section (102) and a lifting and exhausting section (103) from front to back. When the traction and conveying frame (3) slides along the glue-applying conveying guide rail (1), it reduces its height along the descending conveying section (101) and keeps the reduced height during translation along the dipping conveying section (102), and then is lifted to the original height by the lifting and exhausting section (103).

2. The sizing device for producing nitrile gloves according to claim 1, characterized in that, A circulating recovery tank (602) is arranged directly below the feeding conveying frame (9). When the unit dipping cylinders (8) move along the circulating conveying frame (6) to the opposite side of the glue-applying conveying guide rail (1), they are located directly below the feeding conveying pipes (901) and directly above the circulating recovery tank (602). The lower part of the circulating recovery tank (602) is connected to the top of the glue liquid storage tank (7). An intercepting filter screen (603) is arranged between the circulating recovery tank (602) and the glue liquid storage tank (7). A horizontal stirring rod (701) is horizontally rotatably arranged inside the glue liquid storage tank (7). A plurality of stirring blades (702) are connected in a surrounding manner on the outer side of the horizontal stirring rod (701), and a stirring motor (703) is arranged at the shaft end of the horizontal stirring rod (701).

3. The sizing device for the production of nitrile gloves according to claim 2, characterized in that, A discharge opening (804) is provided at the bottom of the unit dipping cylinder (8). A discharge cover plate (805) is horizontally fitted and slidably arranged in the middle of the discharge opening (804). A linkage magnet (807) is arranged at the rear end of the discharge cover plate (805). A closing spring (806) is arranged at the rear side of the linkage magnet (807). A discharge magnet (904) is arranged in the middle of the circulation recovery tank (602). When the unit dipping cylinder (8) moves along the circulation conveying rack (6) to be directly above the circulation recovery tank (602), the discharge magnet (904) pulls the discharge cover plate (805) to slide backward through the linkage magnet (807) to open the discharge opening (804).

4. The sizing device for nitrile glove production according to claim 1, characterized in that, An elastic airbag (802) is arranged inside the unit dipping cylinder (8). The elastic airbag (802) is of an annular cylindrical structure. The outer wall of the elastic airbag (802) is mutually attached and connected to the inner wall of the unit dipping cylinder (8). An inflation interface (803) is arranged in the middle of the elastic airbag (802).

5. The sizing device for producing nitrile gloves according to claim 1, wherein, An air extraction piston (301) is connected and arranged below the traction conveying rack (3). A return spring (302) is arranged in the middle of the air extraction piston (301). An air extraction sleeve (4) is nested and slidably arranged outside the air extraction piston (301). Limit air inlet holes (401) and limit air outlet holes (402) are respectively arranged on the upper and lower sides of the side wall of the air extraction sleeve (4). The inner and outer sides of the air extraction sleeve (4) are mutually communicated through the limit air inlet holes (401) and the limit air outlet holes (402). A one-way ventilation valve (403) is arranged in the middle of the limit air outlet hole (402). A central ventilation hole (404) is arranged at the center of the bottom of the air extraction sleeve (4). The inside of the air extraction sleeve (4) is mutually communicated with the lower part of the closing cover plate (5) through the central ventilation hole (404).

6. The sizing device for the production of nitrile gloves according to claim 5, characterized in that, Limit convex blocks (504) are arranged on both the left and right sides of the closing cover plate (5). Contact rollers (505) are arranged in the middle of the limit convex blocks (504). A guiding and limiting rack (2) is arranged between the glue application conveying guide rail (1) and the traction conveying rack (3). The guiding and limiting rack (2) and the limit convex blocks (504) are arranged corresponding to each other. When the traction conveying rack (3) slides along the glue application conveying guide rail (1) to the dipping conveying section (102), the limit convex blocks (504) are located below the guiding and limiting rack (2).

7. The sizing device for producing nitrile gloves according to claim 6, characterized in that, The guiding and limiting rack (2) is successively provided with a horizontal guiding section (201) and an inclined reset section (202) from front to back. The horizontal guiding section (201) is located directly below the dipping conveying section (102) and the lifting and exhaust section (103). The inclined reset section (202) is inclined from low to high.

8. The sizing device for producing nitrile gloves according to claim 6, characterized in that, A rotary connecting sleeve (502) is arranged between the closed cover plate (5) and the glove sample mold (501). The closed cover plate (5) is rotatably connected to the glove sample mold (501) through the rotary connecting sleeve (502), and the closed cover plate (5) is rotatably connected to the air extraction sleeve (4) through the rotary connecting sleeve (502).

9. The sizing device for producing nitrile gloves according to claim 8, wherein, A rotary gear (503) is arranged in the middle of the rotary connecting sleeve (502), and a horizontal rack (203) is arranged in the middle of the guiding and limiting frame (2). When the traction and conveying frame (3) slides along the glue application conveying guide rail (1) to the glue dipping conveying section (102), the rotary gear (503) meshes with the horizontal rack (203).

10. The method of using the sizing device for producing nitrile gloves according to any one of claims 1-9, characterized in that, The method comprises the following steps: When the traction conveyor frame (3) drives the glove sample mold (501) to slide horizontally synchronously along the glue application conveyor guide rail (1) to above the circulating conveyor frame (6), it then slides downward along the descending conveyor section (101) to lower the height. At this time, the glove sample mold (501) is arranged corresponding to the unit dipping cylinder (8) and maintains synchronous movement. The glove sample mold (501) naturally enters the interior of the unit dipping cylinder (8) downward through the communication opening (801) to immerse in the glue liquid contained in the unit dipping cylinder (8) for glue application. And the closing cover plate (5) on the glove sample mold (501) also moves synchronously and buckles on the unit dipping cylinder (8), and the communication opening (801) at the top of the unit dipping cylinder (8) is closed by the closing cover plate (5), so that the unit dipping cylinder (8) remains closed during the dipping process, which can prevent foreign debris and dust from falling into it. At the same time, the limiting convex block (504) provided on the closing cover plate (5) then moves to the lower side of the guiding and limiting frame (2) to limit the closing cover plate (5) through the guiding and limiting frame (2) and the limiting convex block (504), so that the closing cover plate (5) cannot move upward and always buckles on the top of the unit dipping cylinder (8). Then the traction conveyor frame (3) will drive the glove sample mold (501) to move to the lifting and exhaust section (103). The traction conveyor frame (3) gradually rises along the lifting and exhaust section (103). At this time, the closing cover plate (5) is still limited by the guiding and limiting frame (2). The traction conveyor frame (3) will drive the air extraction piston (301) connected below it to move upward synchronously, while the air extraction sleeve (4) connected to the closing cover plate (5) and the glove sample mold (501) remains at a constant height. The air extraction piston (301) and the air extraction sleeve (4) then form an air extraction mechanism to extract the air in the unit dipping cylinder (8) through the central ventilation hole (404), reduce the air pressure inside the unit dipping cylinder (8), and discharge the bubbles in the glue liquid inside the unit dipping cylinder (8). After the traction conveyor frame (3) drives the air extraction piston (301) to move upward a certain distance, the air extraction piston (301) will cross the limiting air intake hole (401) provided on the upper side of the side wall of the air extraction sleeve (4). At this time, the inside and outside of the air extraction sleeve (4) are interconnected through the limiting air intake hole (401), and the air pressure inside the air extraction sleeve (4) and the unit dipping cylinder (8) returns to normal. And the closing cover plate (5) also moves synchronously to the inclined reset section (202) of the guiding and limiting frame (2), and moves upward and resets along the inclined reset section (202) under the traction of the reset spring (302) and separates from the unit dipping cylinder (8). At this time, the glove sample mold (501) is also taken out synchronously to complete the dipping process.

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