High-efficiency preforming device for natural rubber sheet

Abstract

The utility model discloses natural rubber sheet high -efficient preforming device belongs to natural rubber sheet processing technical field, the utility model discloses natural rubber sheet high -efficient preforming device, including mixing bowl, the inside of mixing bowl is provided with centrifugal mixing barrel, and the lower end of mixing bowl is installed with the material guiding disc, and the below of mixing bowl is installed with support frame, and the inside of support frame is installed with the forming frame. The utility model solves the problem that the latex of prior art natural rubber sheet forming device is easy to produce coagulation before mixing, influences to export, is not favorable to the forming work, the utility model discloses through servo motor drive centrifugal mixing barrel and rotation axis carry out rotation, and through a plurality of filter holes will dispersed natural rubber raw material through centrifugal force and throw into mixing bowl, flow into the downcomer through self -gravity, thereby can carry out material guiding work, and the natural rubber raw material passes through the mode of centrifugal separation, prevents the coagulation of the rubber and blocks, influences the production effect of product, compact structure, integrated processing, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of natural rubber sheet processing technology, specifically to a high-efficiency preforming device for natural rubber sheets. Background Technology

[0002] Natural rubber refers to an elastic solid material made through processing steps such as coagulation and drying. Fresh latex is passed through a sieve to remove bark and impurities. Coagulating acid is added to the latex, which causes the latex to coagulate and become a processable general-purpose rubber. Usually, after adding coagulating acid, the mixture is stirred and then pre-formed for sheeting.

[0003] Chinese Patent CN220638672U discloses a preforming device for natural rubber sheets, including a support base, a support frame on the support base, a mixing box fixed on the support frame, a discharge port below the mixing box, a quantitative dispensing mechanism on the side wall of the support frame near the discharge port, and a forming structure on the support base. This patent belongs to the field of rubber processing technology, specifically referring to a preforming device for natural rubber sheets that ensures a consistent dispensing amount each time through a quantitative dispensing mechanism, thereby guaranteeing consistent rubber thickness and forming quality.

[0004] In actual use, the latex in the natural rubber sheet forming device of the above-mentioned patent is prone to coagulation before mixing, which affects the discharge and is not conducive to the forming work; therefore, it does not meet the existing needs. In response, we have proposed a high-efficiency preforming device for natural rubber sheets. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency preforming device for natural rubber sheets, which solves the problem mentioned in the background art that the latex in the natural rubber sheet forming device is prone to coagulation before mixing, which affects the discharge and is not conducive to the forming work.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency preforming device for natural rubber sheets, comprising a mixing cylinder, a centrifugal mixing tank being provided inside the mixing cylinder, a rotating shaft and a stirring paddle being installed inside the centrifugal mixing tank, a guide plate being installed at the lower end of the mixing cylinder, and a support frame being installed below the mixing cylinder, a forming frame being installed inside the support frame, and the guide plate being embedded in the upper end of the forming frame and sealed to the forming frame.

[0007] Preferably, a fixing seat is installed on both sides of the mixing cylinder, the fixing seat is fixedly connected to the mixing cylinder through a flange, and a bracket is installed at the lower end of the fixing seat.

[0008] Preferably, a discharge pipe is installed at the upper end of the guide plate, and the discharge pipe is sealed and connected to the guide plate and the mixing cylinder respectively.

[0009] Preferably, a discharge valve is installed on both sides of the inside of the mixing cylinder, and the discharge valve is connected to the discharge pipe.

[0010] Preferably, a servo motor is installed on one side of the mixing drum, and a rotating shaft is fixedly installed inside the centrifugal mixing drum. The motor shaft of the servo motor and the rotating shaft are fixedly connected by a coupling.

[0011] Preferably, a feed box is installed on the other side of the mixing cylinder, a guide pipe is installed between the feed box and the fixed base, and a guide pump is installed at the lower end of the feed box. The guide pump is connected to the feed box and the guide pipe respectively, and the guide pipe extends into the interior of the centrifugal mixing barrel and is rotatably connected to the centrifugal mixing barrel through a bearing.

[0012] Preferably, the support frame has a through-hole in the middle for feeding the natural rubber sheet after molding. An electric cylinder is installed below the support frame, with the lower end of the electric cylinder fixedly connected to the support frame and the upper end of the electric cylinder fixedly connected to the molding frame.

[0013] Preferably, the centrifugal mixing tank has an integrally formed filter hole on its exterior, and the stirring paddle and the rotating shaft are both fixedly connected to the centrifugal mixing tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In the process of using the molding device of this utility model, the natural rubber raw material inside the feed box is drawn into the centrifugal mixing tank inside the mixing cylinder by the feed pump. The centrifugal mixing tank and the rotating shaft are driven to rotate by the servo motor. After adding coagulating acid, the mixture is thoroughly stirred. The dispersed natural rubber raw material is thrown into the mixing cylinder by centrifugal force through multiple filter holes and flows into the discharge pipe by its own gravity, thus performing the material guiding work. The natural rubber raw material is separated by centrifugation to prevent the rubber material from coagulating and clogging, which would affect the production effect of the product. The device has a compact structure and integrated processing, eliminating the need for transfer and improving work efficiency.

[0015] 2. When using the molding device of this utility model, the mixed natural rubber raw material flows into the molding frame through the feeding pipe by opening the feeding valve. The electric cylinder extends and drives the molding frame to rise and fit with the guide plate. After sealing, it is cooled and solidified. The feeding is quickly carried out by adjusting the opening and closing of the electric cylinder. Heaters are set in the feeding pipe and the guide plate to prevent the natural rubber raw material from condensing, thereby enabling efficient pre-forming and improving processing efficiency. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the front view of this utility model; Figure 2 This is an axonometric view of the mixing cylinder of this utility model after partial cross-section. Figure 3 This utility model Figure 2 Enlarged view of a portion of area A in the middle; Figure 4 This utility model Figure 2 A magnified view of a section in area B.

[0017] In the diagram: 1. Mixing cylinder; 101. Fixed base; 102. Guide plate; 103. Discharge pipe; 104. Discharge valve; 2. Servo motor; 3. Feed box; 301. Guide pump; 4. Support frame; 5. Forming frame; 501. Electric cylinder; 6. Centrifugal mixing tank; 601. Rotating shaft; 602. Agitator; 603. Filter hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To address the problem in existing natural rubber sheet molding equipment where latex tends to coagulate before mixing, affecting extraction and hindering the molding process, please refer to [the relevant documentation / reference]. Figures 1-3 This embodiment provides the following technical solution: A high-efficiency preforming device for natural rubber sheets includes a mixing cylinder 1, inside which is a centrifugal mixing tank 6. Inside the centrifugal mixing tank 6 are a rotating shaft 601 and a stirring paddle 602. A guide plate 102 is installed at the lower end of the mixing cylinder 1, and a support frame 4 is installed below the mixing cylinder 1. A forming frame 5 is installed inside the support frame 4. The guide plate 102 is embedded in the upper end of the forming frame 5 and is sealed to the forming frame 5. During use, the natural rubber raw material inside the feed box 3 is pumped into the centrifugal mixing tank 6 inside the mixing cylinder 1 by a feed pump 301. The centrifugal mixing tank 6 and the rotating shaft 601 are driven to rotate by a servo motor 2. After adding coagulating acid, the mixture is thoroughly stirred.

[0020] A servo motor 2 is installed on one side of the mixing cylinder 1, and a rotating shaft 601 is fixedly installed inside the centrifugal mixing tank 6. The motor shaft of the servo motor 2 is fixedly connected to the rotating shaft 601 through a coupling. The centrifugal mixing tank 6 and the rotating shaft 601 are driven to rotate by the servo motor 2, and the coagulating acid is added and then thoroughly stirred.

[0021] A feed box 3 is installed on the other side of the mixing cylinder 1. A guide pipe is installed between the feed box 3 and the fixed base 101. A guide pump 301 is installed at the lower end of the feed box 3. The guide pump 301 is connected to the feed box 3 and the guide pipe respectively. The guide pipe extends into the interior of the centrifugal mixing tank 6 and is rotatably connected to the centrifugal mixing tank 6 through a bearing. During the use of the molding device, the natural rubber raw material inside the feed box 3 is drawn into the centrifugal mixing tank 6 inside the mixing cylinder 1 by the guide pump 301.

[0022] The centrifugal mixing tank 6 has an integrally formed filter hole 603 on its exterior. The stirring paddle 602 and the rotating shaft 601 are fixedly connected to the centrifugal mixing tank 6. The dispersed natural rubber raw material is thrown into the mixing tank 1 by centrifugal force through multiple filter holes 603, and flows into the feed pipe 103 by its own gravity, thus performing the material guiding work. The natural rubber raw material is separated by centrifugation to prevent the rubber material from agglomerating and clogging, which would affect the production effect of the product. The structure is compact and integrated, eliminating the need for transfer and improving work efficiency.

[0023] Specifically, during use, the molding device uses a feed pump 301 to pump the natural rubber raw material from the feed box 3 into the centrifugal mixing tank 6 inside the mixing cylinder 1. The centrifugal mixing tank 6 and the rotating shaft 601 are driven to rotate by a servo motor 2. After adding coagulating acid, the mixture is thoroughly stirred. The dispersed natural rubber raw material is then centrifugally thrown into the mixing cylinder 1 through multiple filter holes 603. It then flows into the discharge pipe 103 by its own gravity, thus performing the feeding operation. The natural rubber raw material is separated by centrifugation to prevent the rubber from condensing and clogging, which would affect the production effect of the product. The device has a compact structure and is integrated into the processing, eliminating the need for transfer and improving work efficiency.

[0024] To address the issue of inefficient material feeding methods in existing natural rubber sheet forming equipment during practical use, please refer to... Figures 1-2 , Figure 4 This embodiment provides the following technical solution: Both sides of the mixing cylinder 1 are equipped with fixed seats 101. The fixed seats 101 are fixedly connected to the mixing cylinder 1 through flanges, and the lower end of the fixed seats 101 is equipped with a bracket.

[0025] The upper end of the guide plate 102 is equipped with a discharge pipe 103. The discharge pipe 103 is sealed to the guide plate 102 and the mixing cylinder 1 respectively. When the molding device is in use, the electric cylinder 501 extends, driving the molding frame 5 to rise and fit against the guide plate 102.

[0026] Both sides of the mixing cylinder 1 are equipped with discharge valves 104. The discharge valves 104 are connected to the discharge pipe 103. When the molding device is in use, the mixed natural rubber raw material flows into the molding frame 5 through the discharge pipe 103 by opening the discharge valves 104.

[0027] The support frame 4 has a through-hole in the middle for feeding the natural rubber sheet after molding. An electric cylinder 501 is installed below the support frame 4. The lower end of the electric cylinder 501 is fixedly connected to the support frame 4, and the upper end of the electric cylinder 501 is fixedly connected to the molding frame 5. After keeping it sealed, it is cooled and solidified. The opening and closing of the electric cylinder 501 is adjusted to quickly feed the material. Heaters are installed in the feeding pipe 103 and the guide plate 102 to prevent the natural rubber raw material from condensing, thereby enabling efficient pre-molding and improving processing efficiency.

[0028] Specifically, when the molding device is in use, by opening the feeding valve 104, the mixed natural rubber raw material flows into the molding frame 5 through the feeding pipe 103. The electric cylinder 501 extends, driving the molding frame 5 to rise and fit against the guide plate 102. After maintaining a seal, it is cooled and solidified. The opening and closing of the electric cylinder 501 is adjusted to quickly feed the material. Heaters are installed in the feeding pipe 103 and the guide plate 102 to prevent the natural rubber raw material from condensing, thereby enabling efficient pre-forming and improving processing efficiency.

[0029] Working principle: During use, the natural rubber raw material inside the feed box 3 is drawn into the centrifugal mixing tank 6 inside the mixing cylinder 1 by the feed pump 301. The centrifugal mixing tank 6 and the rotating shaft 601 are driven to rotate by the servo motor 2. After adding coagulating acid, the mixture is thoroughly stirred. The dispersed natural rubber raw material is then centrifugally thrown into the mixing cylinder 1 through multiple filter holes 603. It then flows into the discharge pipe 103 by its own gravity, thus performing the feeding operation. The natural rubber raw material is separated by centrifugation to prevent the rubber compound from coagulating and clogging, which would affect the production effect of the product. With its compact structure and integrated processing, it eliminates the need for transfer, thus improving work efficiency. By opening the feeding valve 104, the mixed natural rubber raw material flows into the molding frame 5 through the feeding pipe 103. The electric cylinder 501 extends, driving the molding frame 5 to rise and fit against the guide plate 102. After maintaining a seal, it is cooled and solidified. The opening and closing of the electric cylinder 501 is adjusted to quickly feed the material. Heaters are installed in the feeding pipe 103 and the guide plate 102 to prevent the natural rubber raw material from condensing, thereby enabling efficient pre-forming and improving processing efficiency.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-efficiency preforming device for natural rubber sheets, comprising a mixing cylinder (1), characterized in that, The mixing cylinder (1) is equipped with a centrifugal mixing tank (6) inside. The centrifugal mixing tank (6) is equipped with a rotating shaft (601) and a stirring paddle (602). The lower end of the mixing cylinder (1) is equipped with a guide plate (102), and a support frame (4) is installed below the mixing cylinder (1). The support frame (4) is equipped with a forming frame (5) inside. The guide plate (102) is embedded in the upper end of the forming frame (5) and is sealed to the forming frame (5).

2. The high-efficiency preforming device for natural rubber sheets according to claim 1, characterized in that: Both sides of the mixing cylinder (1) are equipped with fixed seats (101), which are fixedly connected to the mixing cylinder (1) through flanges, and a bracket is installed at the lower end of the fixed seat (101).

3. The high-efficiency preforming device for natural rubber sheets according to claim 1, characterized in that: The upper end of the guide plate (102) is equipped with a discharge pipe (103), which is sealed to the guide plate (102) and the mixing cylinder (1) respectively.

4. The high-efficiency preforming device for natural rubber sheets according to claim 3, characterized in that: The mixing cylinder (1) is equipped with a discharge valve (104) on both sides inside, and the discharge valve (104) is connected to the discharge pipe (103).

5. The high-efficiency preforming device for natural rubber sheets according to claim 2, characterized in that: A servo motor (2) is installed on one side of the mixing cylinder (1), and a rotating shaft (601) is fixedly installed inside the centrifugal mixing tank (6). The motor shaft of the servo motor (2) and the rotating shaft (601) are fixedly connected by a coupling.

6. The high-efficiency preforming device for natural rubber sheets according to claim 5, characterized in that: A feed box (3) is installed on the other side of the mixing cylinder (1). A guide pipe is installed between the feed box (3) and the fixed seat (101). A guide pump (301) is installed at the lower end of the feed box (3). The guide pump (301) is connected to the feed box (3) and the guide pipe respectively. The guide pipe extends into the interior of the centrifugal mixing tank (6) and is rotatably connected to the centrifugal mixing tank (6) through a bearing.

7. The high-efficiency preforming device for natural rubber sheets according to claim 1, characterized in that: The support frame (4) has a through-hole in the middle, which is used for feeding the natural rubber sheet after molding. An electric cylinder (501) is installed below the support frame (4). The lower end of the electric cylinder (501) is fixedly connected to the support frame (4), and the upper end of the electric cylinder (501) is fixedly connected to the molding frame (5).

8. The high-efficiency preforming device for natural rubber sheets according to claim 1, characterized in that: The centrifugal mixing tank (6) is provided with an integrally formed filter hole (603) on the outside, and the stirring paddle (602) and the rotating shaft (601) are both fixedly connected to the centrifugal mixing tank (6).

Images