Pre-blending equipment for foamed plastic production

Abstract

The utility model provides a pre-blending device for foamed plastic production. Belongs to the field of foamed plastic production. According to the technical key points, the device comprises a blending mechanism, the blending mechanism comprises a tank body, the top of the tank body is fixedly connected with a tank cover, the bottom of the tank body is fixedly connected with a discharge valve communicated with the tank cover, a feeding pipe is fixed to one side of the interior of the tank cover in a penetrating mode, and a first stepping motor is fixedly connected to the middle of the top of the feeding pipe; the output end of the first stepping motor is fixedly connected with a stirring shaft, and the outer side of the stirring shaft is fixedly connected with a plurality of rows of stirring rods in an annular array; the shielding mechanism comprises a lower baffle connected to the interior of the tank body in a sliding mode, the top of the lower baffle is rotationally connected with an upper baffle, and the stirring shaft penetrates through the lower baffle and the upper baffle; the utility model aims to provide the pre-blending equipment for foamed plastic production. The applicability of the whole equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of foam plastic production, in particular to a pre-mixing device for foam plastic production. Background Technique

[0002] Foam plastics are a type of polymer material formed by a large number of gas micropores dispersed in solid plastics. They have characteristics such as light weight, heat insulation, sound absorption, shock absorption, etc., and their dielectric properties are superior to those of the matrix resin, and they have a wide range of uses. Almost all plastics can be made into foam plastics, and foam molding has become an important field in plastic processing.

[0003] The current pre-mixing device for foam plastic production, as described in the patent with publication number CN212795486U, includes a mixing device body; one side of the top of the mixing device body is provided with a feeding pipe for adding foam plastic particles, and the other side is provided with a feeding pipe for adding a reactant for foam plastic particles. The bottom of the feeding pipe is provided with a water inlet pipe, and one side of the bottom of the mixing device body is provided with a discharge pipe; a stirring motor is installed below the mixing device body, the rotating shaft of the stirring motor is connected to a stirring shaft through a coupling, one end of the stirring shaft far from the rotating shaft is installed inside the mixing device body, and stirring blades are arranged on the outer wall of the stirring shaft.

[0004] Regarding the above related technology, the inventor believes that by installing a blocking plate that can be lifted and lowered inside the mixing device body, it can prevent foam plastic particles from floating in the air during the mixing process and being difficult to fully blend with the reactant, effectively improving the mixing efficiency and quality of foam plastic particles. However, due to the setting of the stirring blades, the blocking plate can only drop to the top of the stirring blades at most, resulting in the inability to efficiently and qualitatively mix the foam particles and the reactant with a material level lower than the top height of the stirring blades, and thus the applicability of the entire device is poor. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a pre-mixing device for foam plastic production to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A pre-mixing device for foam plastic production, including

[0008] Mixing mechanism, the mixing mechanism includes a tank body, the top of the tank body is fixedly connected with a tank cover, the bottom of the tank body is fixedly connected with a discharge valve that is communicated, one side inside the tank cover is fixedly penetrated with a feed pipe, the middle position at the top of the feed pipe is fixedly connected with a first stepping motor, the output end of the first stepping motor is fixedly connected with a stirring shaft, and multiple rows of stirring rods are fixedly connected in an annular array on the outer side of the stirring shaft;

[0009] Blocking mechanism, the blocking mechanism includes a lower baffle plate slidably connected inside the tank body, the top of the lower baffle plate is rotatably connected with an upper baffle plate, the stirring shaft penetrates through the lower baffle plate and the upper baffle plate, a plurality of avoidance openings are opened in an annular array inside the lower baffle plate and the upper baffle plate, and each group of the avoidance openings is respectively adapted to each group of the stirring rods, a through opening corresponding to the feed pipe is opened on one side inside the lower baffle plate and the upper baffle plate, a plurality of air holes are evenly opened inside the lower baffle plate and the upper baffle plate, the inside of the lower baffle plate is symmetrically threadedly connected with adjusting screws, the adjusting screws are rotatably connected with the tank cover, one side at the top of the upper baffle plate is fixedly connected with an arc-shaped rack, the outside of the arc-shaped rack is meshed with a gear, the gear is rotatably connected with the lower baffle plate, a hexagonal sliding shaft is slidably penetrated inside the gear, and one side at the top of the tank cover is fixedly connected with a third stepping motor, and the output end of the third stepping motor is fixedly connected with the hexagonal sliding shaft.

[0010] As a further scheme of the present utility model: a connecting ring is fixedly connected to the outside of the tank body, and a plurality of columns are fixedly connected in an annular array at the bottom of the connecting ring.

[0011] As a further scheme of the present utility model: a threaded cover is threadedly connected to the top of the feed pipe, and a plurality of fan blades are fixedly connected in an annular array at the top outside of the stirring shaft.

[0012] As a further scheme of the present utility model: a plurality of guiding strips are fixedly connected in an annular array on the inner wall of the tank body, and each group of the guiding strips is slidably connected with the lower baffle plate.

[0013] As a further scheme of the present utility model: worm wheels are fixedly connected to the tops of the two groups of adjusting screws, a worm is meshed with one side of the two groups of worm wheels, an extension plate is fixedly connected to one side of the tank cover, a second stepping motor is fixedly connected to the top of the extension plate, and the output end of the second stepping motor is fixedly connected with the worm.

[0014] As a further scheme of the present utility model: reinforcing rib plates are symmetrically fixedly connected to the bottom of the extension plate, and both groups of the reinforcing rib plates are fixedly connected with the tank cover.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] After the present utility model adopts the above structure, through the mutual cooperation of the lower baffle, the upper baffle, the avoidance opening, the adjusting screw rod and the third stepping motor, after the foam plastic particles to be blended are discharged into the interior of the tank body, the adjusting screw rod can be rotated, so that the adjusting screw rod can drive the lower baffle and the lower baffle to move downward, so that the lower baffle can move downward to a height close to the raw material level and be misaligned with the stirring rod. When the lower baffle and the upper baffle move downward, the avoidance opening can allow the stirring rod to pass through. Then, only need to start the third stepping motor, so that the third stepping motor can drive the hexagonal sliding shaft to rotate, and the hexagonal sliding shaft can drive the gear to rotate when rotating, so that the upper baffle can be adjusted to block the avoidance opening and the passing opening on the lower baffle, thereby reducing the probability of foam plastic particles passing through the avoidance opening and the passing opening during the blending process, so as to meet the requirement of fully blending different amounts of raw materials, and further improve the applicability of the entire equipment. Description of the Drawings

[0017] The following further elaborates on the present utility model in conjunction with the embodiments in the drawings, but does not constitute any limitation to the present utility model.

[0018] Figure 1 It is a schematic diagram of the overall structure of a pre-blending device for foam plastic production.

[0019] Figure 2 It is a partial structural sectional view of a pre-blending device for foam plastic production.

[0020] Figure 3 It is a pre-blending device for foam plastic production Figure 2 Schematic diagram of the structure of part A.

[0021] Figure 4 It is a pre-blending device for foam plastic production Figure 2 Schematic diagram of the structure of part B.

[0022] Figure 5 It is a partial structural sectional view of another perspective of a pre-blending device for foam plastic production.

[0023] In the figure: 1. Blending mechanism; 101. Tank body; 102. Tank cover; 103. Connecting ring; 104. Column; 105. Discharge valve; 106. Feed pipe; 107. Threaded cover; 108. First stepping motor; 109. Stirring shaft; 110. Stirring rod; 111. Fan blade; 2. Shielding mechanism; 201. Lower baffle; 202. Upper baffle; 203. Avoidance opening; 204. Passing opening; 205. Adjusting screw; 206. Worm; 207. Second stepping motor; 208. Extension plate; 209. Reinforcing rib plate; 210. Third stepping motor; 211. Hexagonal sliding shaft; 212. Gear; 213. Arc rack; 214. Air hole; 215. Guide strip; 216. Worm gear. Detailed implementation manners

[0024] The technical solutions of this patent will be further described in detail below in combination with the specific implementation manners.

[0025] Please refer to Figures 1-5 , a pre-blending device for foam plastic production, including a blending mechanism 1. The blending mechanism 1 includes a tank body 101, and the tank body 101 is provided for accommodating the foam plastic and raw materials to be blended. A connecting ring 103 is fixedly connected to the outside of the tank body 101, and a plurality of columns 104 are fixedly connected to the bottom of the connecting ring 103 in an annular array. The connecting ring 103 and the columns 104 can support the tank body 101. A tank cover 102 is fixedly connected to the top of the tank body 101, and the tank cover 102 is provided for covering the top of the tank body 101. One side inside the tank cover 102 is fixedly penetrated with a feed pipe 106, and the feed pipe 106 is provided for adding foam particles and other raw materials to be blended into the tank body 101. A threaded cover 107 is threadedly connected to the top of the feed pipe 106, and the threaded cover 107 is provided for covering and sealing the top of the feed pipe 106. A first stepping motor 108 is fixedly connected to the middle position at the top of the feed pipe 106. The output end of the first stepping motor 108 is fixedly connected to a stirring shaft 109. A plurality of rows of stirring rods 110 are fixedly connected to the outside of the stirring shaft 109 in an annular array. The first stepping motor 108 is provided for driving the stirring shaft 109 and the stirring rods 110 to rotate when starting to work, so as to realize the stirring and blending of the foam plastic particles and other raw materials inside the tank body 101.

[0026] A discharge valve 105 which is fixedly connected to the bottom of the tank body 101 and is communicated therewith is provided for discharging the raw materials and the foam plastic particles after blending when it is opened. A plurality of fan blades 111 are fixedly connected to the outer top of the stirring shaft 109 in an annular array. The fan blades 111 are provided for driving the fan blades 111 to rotate therewith when the stirring shaft 109 rotates, so that when discharging the blended raw materials and the foam plastic particles, the third stepping motor 210 can be started, and the third stepping motor 210 drives the stirring shaft 109 and the fan blades 111 to rotate, so that the airflow generated when the fan blades 111 rotate can blow out part of the foam plastic adhered to the tank body 101 and the fan blades 111 from the inside of the tank body 101. The shielding mechanism 2 includes a lower baffle 201 slidably connected to the inside of the tank body 101. The top of the lower baffle 201 is rotatably connected to an upper baffle 202. The lower baffle 201 and the upper baffle 202 are provided for shielding the foam plastic particles to reduce the range of the foam plastic being lifted during stirring, thereby improving the mixing effect of the foam plastic and other raw materials.

[0027] A plurality of guide strips 215 are fixedly connected to the inner wall of the tank body 101 in an annular array. Each group of guide strips 215 is slidably connected to the lower baffle 201. The guide strips 215 are provided for guiding the up and down movement of the lower baffle 201 and the upper baffle 202. The stirring shaft 109 penetrates through the lower baffle 201 and the upper baffle 202. A plurality of avoiding openings 203 are formed in the lower baffle 201 and the upper baffle 202 in an annular array. Each group of avoiding openings 203 is respectively adapted to each group of stirring rods 110. The avoiding openings 203 are provided for avoiding the stirring rods 110 when the lower baffle 201 and the upper baffle 202 move up and down. A through opening 204 corresponding to the feed pipe 106 is formed in one side of the lower baffle 201 and the upper baffle 202. The through opening 204 is provided for facilitating the passing of the raw materials and the foam plastic particles during feeding. A plurality of air holes 214 are uniformly formed in the lower baffle 201 and the upper baffle 202. The air holes 214 are provided for facilitating the passing of the airflow when the fan blades 111 rotate.

[0028] Adjusting screws 205 are symmetrically threadedly connected to the inside of the lower baffle 201. The adjusting screws 205 are rotatably connected to the tank cover 102. The adjusting screws 205 are provided for driving the lower baffle 201 to move up and down when rotating. The tops of the two groups of adjusting screws 205 are fixedly connected with worm wheels 216. One side of the two groups of worm wheels 216 is meshed with a worm 206. An extension plate 208 is fixedly connected to one side of the tank cover 102. Reinforcing rib plates 209 are symmetrically fixedly connected to the bottom of the extension plate 208. The two groups of reinforcing rib plates 209 are both fixedly connected to the tank cover 102. The reinforcing rib plates 209 are provided for further connecting and fixing the extension plate 208 and the tank cover 102, thereby improving the stability of the extension plate 208.

[0029] A second stepping motor 207 is fixedly connected to the top of the extension plate 208. The output end of the second stepping motor 207 is fixedly connected to the worm 206. The second stepping motor 207 is provided to drive the worm 206 to rotate when starting to work. When the worm 206 rotates, it can drive two sets of worm wheels 216 and two sets of adjusting screws 205 to rotate synchronously, so as to realize the synchronous adjustment of the two sets of adjusting screws 205. One side of the top of the upper baffle 202 is fixedly connected with an arc-shaped rack 213. The outer side of the arc-shaped rack 213 is meshed with a gear 212. When the gear 212 rotates, it can drive the arc-shaped rack 213 and the upper baffle 202 to rotate accordingly, so that the upper baffle 202 can be adjusted to block the through hole 204 and the avoidance hole 203 on the lower baffle 201. The gear 212 is rotatably connected to the lower baffle 201. A hexagonal sliding shaft 211 slidably penetrates through the inside of the gear 212. One side of the top of the tank cover 102 is fixedly connected with a third stepping motor 210. The output end of the third stepping motor 210 is fixedly connected to the hexagonal sliding shaft 211. The third stepping motor 210 is provided to drive the hexagonal sliding shaft 211 to rotate when starting to work, so that when the hexagonal sliding shaft 211 rotates, it can drive the gear 212 to rotate accordingly.

[0030] During use, start the second stepping motor 207 so that the second stepping motor 207 can drive the worm 206 to rotate when starting to work. When the worm 206 rotates, it drives the two side worm wheels 216 and the two groups of adjusting screws 205 to rotate synchronously, so that the adjusting screws 205 can drive the lower baffle 201 and the upper baffle 202 to move upward when rotating until the through port 204 is adjusted to correspond to the feed pipe 106. Then unscrew the threaded cap 107, pour the foam particles to be processed and other raw materials to be blended into the interior of the tank body 101 through the feed pipe 106. Then screw the threaded cap 107 into the top of the feed pipe 106. Next, start the second stepping motor 207 again, thereby driving the lower baffle 201 and the upper baffle 202 to move downward until the lower baffle 201 and the upper baffle 202 are adjusted to a height close to the upper part of the raw material level inside the tank body 101 and misaligned with the stirring rod 110. Then start the third stepping motor 210 so that the third stepping motor 210 can drive the hexagonal sliding shaft 211 to rotate when starting to work. When the hexagonal sliding shaft 211 rotates, it can drive the gear 212 to rotate. When the gear 212 rotates, it can drive the arc-shaped rack 213 and the upper baffle 202 to rotate, thereby adjusting the through port 204 on the upper baffle 202, the through port 204 on the lower baffle 201, the avoidance port 203 on the lower baffle 201 and the avoidance port 203 on the upper baffle 202 to be misaligned, so that the upper baffle 202 can block the through port 204 and the avoidance port 203 on the lower baffle 201 to prevent the passage of foam plastic particles. Then the first stepping motor 108 can be started so that the first stepping motor 108 can drive the stirring shaft 109 and the stirring rod 110 to rotate when rotating, thereby realizing the pre-blending of the foam plastic particles and other raw materials inside the tank body 101. Due to the shielding of the lower baffle 201 and the upper baffle 202, the range of the foam plastic being lifted during the stirring and blending process by the stirring rod 110 can be effectively reduced, thereby improving the blending effect of the foam plastic and other raw materials.

[0031] The above-described embodiments are the preferred embodiments of the present invention, which are only used to facilitate the description of the present invention and do not impose any form of limitation on the present invention. Any person with ordinary knowledge in the technical field, without departing from the technical features of the present invention, uses the equivalent embodiments obtained by making partial changes or modifications to the technical content disclosed by the present invention and without departing from the technical feature content of the present invention, still belongs to the scope of the technical features of the present invention.

Claims

1. A pre-blending device for foam plastic production, characterized in that: include A mixing mechanism (1), the mixing mechanism (1) comprising a tank body (101), the top of the tank body (101) being fixedly connected to a tank cover (102), the bottom of the tank body (101) being fixedly connected to a communicating discharge valve (105), a feed pipe (106) being fixedly passed through one side of the interior of the tank cover (102), a first stepper motor (108) being fixedly connected at a middle position of the top of the feed pipe (106), an output end of the first stepper motor (108) being fixedly connected to a stirring shaft (109), and a plurality of rows of stirring rods (110) being fixedly connected to the outer side of the stirring shaft (109) in a circular array; The shielding mechanism (2) comprises a lower baffle (201) slidably connected to the inside of the tank body (101), the top of the lower baffle (201) is rotatably connected to an upper baffle (202), the stirring shaft (109) passes through the lower baffle (201) and the upper baffle (202), a plurality of avoidance openings (203) are provided in a circular array inside the lower baffle (201) and the upper baffle (202), each group of the avoidance openings (203) is respectively matched with each group of the stirring rods (110), a through opening (204) corresponding to the feeding pipe (106) is provided on one side of the inside of the lower baffle (201) and the upper baffle (202), and the lower baffle (201) and the upper baffle (202) are provided with a plurality of avoidance openings (203) in a circular array inside the lower baffle (201) and the upper baffle (202). 02), a plurality of air holes (214) are evenly provided inside, an adjusting screw (205) is symmetrically threadedly connected inside the lower baffle (201), and the adjusting screw (205) is rotatably connected to the tank cover (102), an arc-shaped rack (213) is fixedly connected to the top side of the upper baffle (202), and a gear (212) is meshedly connected to the outer side of the arc-shaped rack (213), and the gear (212) is rotatably connected to the lower baffle (201), and a hexagonal sliding shaft (211) is slidably penetrated inside the gear (212), and a third stepping motor (210) is fixedly connected to the top side of the tank cover (102), and the output end of the third stepping motor (210) is fixedly connected to the hexagonal sliding shaft (211).

2. A pre-blending device for foam plastic production according to claim 1, characterized in that: A connecting ring (103) is fixedly connected to the outer side of the tank body (101), and a plurality of columns (104) are fixedly connected to the bottom of the connecting ring (103) in a ring array.

3. A pre-blending device for foam plastic production according to claim 1, characterized in that: The top of the feed pipe (106) is threadedly connected to a threaded cover (107), and the outer top of the stirring shaft (109) is fixedly connected to a plurality of fan blades (111) in a ring array.

4. A pre-blending device for foam plastic production according to claim 1, characterized in that: The inner wall of the tank body (101) is fixedly connected to a plurality of guide bars (215) in an annular array, and each group of the guide bars (215) is slidably connected to the lower baffle (201).

5. A pre-blending device for foam plastic production according to claim 1, characterized in that: The tops of the two groups of adjusting screws (205) are fixedly connected with worm wheels (216), one side of the two groups of worm wheels (216) is meshingly connected with the worm (206), one side of the tank cover (102) is fixedly connected with an extension plate (208), the top of the extension plate (208) is fixedly connected with a second stepper motor (207), and the output end of the second stepper motor (207) is fixedly connected to the worm (206).

6. A pre-blending device for producing foam plastics according to claim 5, characterized in that: The bottom of the extension plate (208) is symmetrically fixedly connected with reinforcing rib plates (209), and two groups of the reinforcing rib plates (209) are fixedly connected to the tank cover (102).

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