Quantitative feeding high temperature steam rotomolding apparatus

Abstract

The application discloses a high-temperature steam rotational moulding equipment with quantitative feeding, which comprises a rotational moulding feeding box, a sample feeding mechanism, a material distribution assembly and a material weighing assembly. The rotational moulding feeding box comprises a box body and a discharging opening. The discharging opening is arranged on the box body. The sample feeding mechanism is in two groups, and the two groups of sample feeding mechanisms are arranged on the top wall of the box body. The material distribution assembly is in two groups, and each group of material distribution assembly is arranged on the sample feeding mechanism. The material distribution assembly comprises a material box, a feeding port, a storage tank and a material distribution mechanism. The material box is arranged in the box body. The feeding port is arranged on the material box. The storage tank is arranged in the material box. The material distribution mechanism is arranged on the storage tank. The material weighing assembly is arranged in the box body. Thus, the double movable plates and the meshing transmission structure are adopted, the dynamic cooperation of the material pushing part and the material passing part is combined, the single material distribution amount can be accurately controlled, the material dropping is automatically opened and closed through gravity feedback, the weight of the injection molding raw material is ensured to strictly meet the set value, and the product consistency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotational molding, and in particular to a high-temperature steam rotational molding equipment with quantitative feeding. BACKGROUND

[0002] In the rotational molding process, the quantitative feeding of raw materials is a key link affecting product quality and production efficiency. The feeding system of traditional rotational molding equipment has the following defects:

[0003] Low quantitative precision: existing technologies rely on manual feeding or simple mechanical valve control, which is easily disturbed by factors such as raw material fluidity and humidity, resulting in fluctuations in the amount of single injection of raw materials, affecting the uniformity of product wall thickness and dimensional stability.

[0004] Poor adaptability: frequent adjustment of equipment parameters is required for different types of raw materials or injection specifications, which is tedious and difficult to quickly adapt to production needs.

[0005] Low efficiency: the lack of linkage design in raw material storage and transportation links often results in blockage or emptying, requiring manual intervention and reducing continuous production efficiency.

[0006] Complex structure: some equipment uses multiple sensors and electronic control systems, which are costly and difficult to maintain, especially in high-temperature environments, where component failure is likely to occur. SUMMARY

[0007] The present application aims to at least partially solve one of the technical problems in the related art.

[0008] To this end, the present application proposes a high-temperature steam rotational molding equipment with quantitative feeding, which uses double movable plates (lower movable plate and upper movable plate) and meshing transmission structure, combined with the dynamic cooperation of the material ejecting piece and the material passing piece, to accurately control the single material quantity, automatically open and close the material through gravity feedback, ensure that the weight of the injection raw material strictly meets the set value, and improve the product consistency.

[0009] To achieve the above-mentioned purpose, the present application proposes a high-temperature steam rotational molding equipment with quantitative feeding, comprising a rotational molding feeding tank, a sample introduction mechanism, a material distribution assembly and a material weighing assembly, wherein the rotational molding feeding tank comprises a tank body and a material outlet opening, wherein the material outlet opening is provided on the tank body; the sample introduction mechanism is two groups, and the two groups of sample introduction mechanisms are respectively arranged on the top wall of the tank body; the material distribution assembly is two groups, and each group of material distribution assemblies is respectively arranged on the sample introduction mechanism; the material distribution assembly comprises a tank, a feeding port, a storage tank and a material distribution mechanism, wherein the tank is arranged in the tank body; the feeding port is arranged on the tank; the storage tank is arranged in the tank; the material distribution mechanism is arranged on the storage tank; the material weighing assembly is arranged in the tank body.

[0010] In addition, the high-temperature steam rotational molding equipment with quantitative feeding as mentioned above can further have the following additional technical features.

[0011] Specifically, the material distributing mechanism comprises a distributing groove, a quantitative material storing part, a driven part and a material passing part, a material pushing part and a material outlet, wherein the distributing groove is arranged on the material storing groove; the quantitative material storing part is movably arranged in the distributing groove; the driven part is arranged in the distributing groove and the quantitative material storing part is arranged on the driven part; the material passing part is arranged on the quantitative material storing part; the material pushing part is rotatably arranged in the distributing groove and the material pushing part and the material passing part are abuttingly connected; and the material outlet is arranged on the distributing groove.

[0012] Specifically, the quantitative material storing part comprises a lower movable plate, a material storing box, an upper movable plate and a buffer part, wherein the lower movable plate is movably arranged in the distributing groove; the material storing box is arranged on the lower movable plate; the upper movable plate is movably arranged in the distributing groove; and the buffer part is connected to the lower movable plate and the upper movable plate respectively.

[0013] Specifically, the driven part comprises an outer movable plate, an inner movable plate, a driven part, a meshing transmission part one, a meshing transmission part two and a rack, wherein the outer movable plate is movably arranged in the distributing groove; the inner movable plate is movably arranged in the distributing groove; the driven part is rotatably arranged in the distributing groove; the meshing transmission part one is arranged on the outer movable plate; the meshing transmission part two is arranged on the inner movable plate; the rack is arranged on the meshing transmission part one and the meshing transmission part two respectively and the rack and the driven part are meshingly connected.

[0014] Specifically, the material passing part comprises a hollow frame, a movable rod holder, a baffle, a reset part, a material blocking plate and a material passing outlet, wherein the hollow frame is arranged on the lower movable plate; the movable rod holder is movably arranged in the hollow frame; the baffle is arranged on the movable rod holder; the reset part is connected to the hollow frame and the baffle respectively; the material blocking plate is arranged on the movable rod holder; and the material passing outlet is arranged on the hollow frame.

[0015] Specifically, the material pushing part comprises an outer sleeve, a fixed shaft seat, a volute spring and a top plate, wherein the fixed shaft seat is arranged on the bottom wall of the distributing groove; the outer sleeve is rotatably arranged on the fixed shaft seat; the volute spring is arranged at the connection between the outer sleeve and the fixed shaft seat; the top plate is arranged on the outer sleeve and the top plate and the movable rod holder are abuttingly connected.

[0016] Specifically, the weighing assembly comprises a connecting support, a first rotating rod, a sleeve, a second rotating rod, a weighing balance mechanism and a quantitative material dropping mechanism, wherein the connecting support is arranged in the box; the first rotating rod is rotatably arranged on the connecting support; the sleeve is arranged on the first rotating rod; the second rotating rod is rotatably arranged on the sleeve; the weighing balance mechanism is arranged on the second rotating rod; the quantitative material dropping mechanism is arranged in the box, and the weighing balance mechanism is connected to the quantitative material dropping mechanism.

[0017] Specifically, the weighing balance mechanism comprises a weighing box, a movable cover plate, a limiting rod support, a limiting ring, an elastic component and a convex plate, wherein the weighing box is arranged on the second rotating rod; the movable cover plate is movably arranged on the weighing box; the limiting rod support is arranged on the movable cover plate; the limiting ring is arranged on the bottom wall of the weighing box, and the limiting rod support movably penetrates through the limiting ring; the convex plate is arranged on the weighing box; and the two ends of the elastic component are respectively connected to the convex plate and the limiting rod support.

[0018] Specifically, the quantitative material dropping mechanism comprises a positioning shaft, a material dropping support and a return component, wherein the positioning shaft is arranged in the box; the material dropping support is rotatably arranged on the positioning shaft; the return component is sleeved on the positioning shaft, and the return component is connected to the material dropping support; the material dropping support comprises a fixed plate, a positioning hole and a top rod, wherein the fixed plate is rotatably arranged on the positioning shaft; the positioning hole is formed in the fixed plate; and the top rod is arranged on the fixed plate.

[0019] Specifically, the sample feeding mechanism comprises a feeding groove, a material dropping opening and a material blocking base plate, wherein the feeding groove is arranged on the box; the material dropping opening is formed in the box; and the material blocking base plate is arranged on the box.

[0020] Compared with the prior art, the quantitative material feeding high-temperature steam rotational molding equipment has the following advantages:

[0021] 1. High-precision quantitative control: The material distribution assembly adopts double movable plates (a lower movable plate and an upper movable plate) and a meshing transmission structure, and the dynamic cooperation of the material lifting part and the material passing part can accurately control the single material distribution amount.

[0022] The weighing balance mechanism (such as the weighing box and the elastic component) of the weighing assembly automatically opens and closes the material dropping through gravity feedback, ensures that the weight of the injection molding raw material strictly meets the set value, and improves the product consistency.

[0023] 2. Adaptive adjustment and efficient operation: The modular design of the distribution chute and the material box supports multiple parallel distribution, and the number and capacity of the distribution chutes can be flexibly adjusted according to the injection molding requirements, adapting to different raw material specifications (such as particle size and flow difference).

[0024] The blocking plate of the sample injection mechanism and the material falling port intercept design, combined with the buffer storage of the storage tank, effectively avoid clogging and raw material splashing, and ensure the stability of continuous feeding.

[0025] 3. Simplified structure and high reliability: Pure mechanical linkage (such as meshing transmission gear, volute spring reset) is used instead of electronic control system, reducing failure rate and adapting to harsh conditions such as high temperature and high humidity.

[0026] The fixed plate of the weighing assembly and the return component are designed by mechanical preloading (such as elastic component spring force matching), which realizes automatic turnover and unloading after the raw material is full, with fast response speed and long service life.

[0027] 4. Energy saving and environmental protection and cost effectiveness: Precise quantification reduces raw material waste and production cost; modular structure simplifies maintenance process, reduces downtime, and significantly improves overall energy efficiency.

[0028] Additional aspects and advantages of the application will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0030] Figure 1 is a structural schematic diagram of the application;

[0031] Figure 2 is a structural schematic diagram of the distribution assembly of the application;

[0032] Figure 3 is a structural schematic diagram of the distribution mechanism of the application;

[0033] Figure 4 is a structural schematic diagram of the driven member of the application;

[0034] Figure 5 is a structural schematic diagram of the driven component connection of the application;

[0035] Figure 6 is a structural schematic diagram of the material passing member of the application;

[0036] Figure 7 is a structural schematic diagram of the material lifting member of the application;

[0037] Figure 8 is a structural schematic diagram of the weighing balance mechanism of the application.

[0038] As shown: 10, rotational molding feeding box; 101, box body; 102, discharge opening; 20, sample feeding mechanism; 201, feeding groove; 202, blanking port; 203, material blocking base plate; 30, material distribution assembly; 301, material box; 302, feeding port; 303, material storage groove; 304, material distribution mechanism; 3041, material distribution groove; 3042, quantitative material storage part; 30421, lower movable plate; 30422, material storage box; 30423, upper movable plate; 30424, buffer part; 3043, driven part; 30431, outer movable plate; 30432, inner movable plate; 30433, driven part; 30434, meshing transmission part one; 30435, meshing transmission part two; 30436, rack; 3044, material passing part; 30441, hollow frame; 30442, movable rod frame; 30443, baffle; 30444, reset part; 30445, material blocking plate; 30446, material passing port; 3045, material ejecting part; 30451, outer sleeve; 30452, fixed shaft seat; 30453, volute spring; 30454, top plate; 3046, discharge port; 40, weighing assembly; 401, connecting support; 402, first rotating rod; 403, sleeve; 404, second rotating rod; 405, weighing balance mechanism; 4051, weighing box; 4052, movable cover plate; 4053, limiting rod frame; 4054, limiting ring; 4055, elastic part; 4056, protruding plate; 406, quantitative blanking mechanism; 4061, positioning shaft rod; 4062, blanking support; 40621, fixed plate block; 40622, positioning hole; 40623, ejecting rod; 4063, reset part. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. On the contrary, the embodiments of the present application include all variations, modifications and equivalents falling within the scope and spirit of the appended claims.

[0040] A quantitative feeding high-temperature steam rotational molding equipment is described below in detail according to the embodiments of the present application.

[0041] As Figures 1-8 shown, the quantitative feeding high-temperature steam rotational molding equipment according to the embodiments of the present application comprises a rotational molding feeding box 10, a sample feeding mechanism 20, a material distribution assembly 30 and a weighing assembly 40.

[0042] The rotational molding feeding box 10 comprises a box body 101 and a discharge opening 102.

[0043] The discharge opening 102 is arranged on the box body 101, and the sample feeding mechanism 20 is arranged in two groups and arranged on the top wall of the box body 101.

[0044] It should be noted that the box body 101 is arranged directly above the rotational molding equipment, and the position of the discharge opening 102 is arranged above the material port of the rotational molding equipment, so that the injection molding raw material is filled in the injection molding equipment through the box body 101.

[0045] The material distribution assembly 30 is arranged in two groups, and each group of the material distribution assembly 30 is arranged on the sample feeding mechanism 20.

[0046] The material distribution assembly 30 includes a material box 301, a feeding port 302, a storage tank 303 and a material distribution mechanism 304.

[0047] It should be noted that the feeding port 302 on the material box 301 is connected with the sample feeding mechanism 20, so that the injection molding raw material is put through the sample feeding mechanism 20, and the raw material falls into the material box 301, and then is stored in the storage tank 303 and stored through the material distribution mechanism 304.

[0048] In an embodiment of the present application, as shown in Figure 3 The material distribution mechanism 304 includes a material distribution tank 3041, a quantitative material storage part 3042, a driven part 3043 and a material passing part 3044, a material lifting part 3045 and a discharge port 3046.

[0049] The material distribution tank 3041 is arranged on the storage tank 303, the quantitative material storage part 3042 is movably arranged in the material distribution tank 3041, the driven part 3043 is arranged in the material distribution tank 3041, and the quantitative material storage part 3042 is arranged on the driven part 3043. The material passing part 3044 is arranged on the quantitative material storage part 3042, the material lifting part 3045 is rotatably arranged in the material distribution tank 3041, and the material lifting part 3045 and the material passing part 3044 are connected in abutment, and the discharge port 3046 is arranged on the material distribution tank 3041.

[0050] It should be noted that the material distribution tank 3041 is arranged in multiple groups, and the number of the material distribution tank 3041 is set according to the weight of the raw material required for injection molding. A material falling baffle is arranged in the material distribution tank 3041, the material falling baffle is arranged above the quantitative material storage part 3042, and the raw material falls into the material distribution tank 3041. The material passing part 3044 is arranged at an opening below the quantitative material storage part 3042, and the material passing part 3044 and the material lifting part 3045 are matched with each other, so that the raw material falls through the material passing part 3044 and falls out of the discharge port 3046.

[0051] In one embodiment of the present application, as shown in Figure 3 The quantitative material storage part 3042 includes a lower movable plate 30421, a material storage box 30422, an upper movable plate 30423, and a buffer part 30424.

[0052] The lower movable plate 30421 is movably arranged in the material distribution groove 3041, the material storage box 30422 is arranged on the lower movable plate 30421, the upper movable plate 30423 is movably arranged in the material distribution groove 3041, and the two ends of the buffer part 30424 are respectively connected to the lower movable plate 30421 and the upper movable plate 30423.

[0053] It should be noted that the lower movable plate 30421 is provided with an opening at the bottom wall, and the raw material falls through the opening. The upper movable plate 30423 is arranged above the lower movable plate 30421, and the material storage box 30422 is arranged on the top wall of the lower movable plate 30421. The raw material falls into the material storage box 30422, and as the weight of the raw material in the material storage box 30422 gradually increases, the lower movable plate 30421 moves downward, and the upper movable plate 30423 moves upward through the driven part 3043. When the lower movable plate 30421 moves downward and cooperates with the material ejecting part 3045, the material passing part 3044 is opened, and the raw material falls into the weighing assembly 40 through the discharge port 3046.

[0054] Further, in order to ensure that the lower movable plate 30421 moves downward and synchronously drives the upper movable plate 30423 to move upward, the weight of the raw material put into the material storage box 30422 needs to meet the weight of the raw material required for injection molding. For example, the material storage box 30422 is filled with a weight of 40KG, the weight required for the lower movable plate 30421 to move downward and slide is 40KG, the weight of the raw material required to be filled in the injection molding equipment is 20KG, and the weight required for the lower movable plate 30421 to move upward and reset is 20KG. According to the time required for the lower movable plate 30421 to move downward, according to the distance required for the lower movable plate 30421 to move upward, when the material passing part 3044 and the material ejecting part 3045 are separated, the material passing part 3044 is blocked to prevent the raw material from continuing to fall, and it is ensured that the falling raw material meets the required injection molding raw material reserve.

[0055] In one embodiment of the present application, as shown in Figure 4 and Figure 5 The driven part 3043 includes an outer movable plate 30431, an inner movable plate 30432, a driven part 30433, a meshing transmission part one 30434, a meshing transmission part two 30435, and a rack 30436.

[0056] The outer movable plate 30431 is movably arranged in the distributing groove 3041, the inner movable plate 30432 is movably arranged in the distributing groove 3041, and the driven component 30433 is rotatably arranged in the distributing groove 3041. The engaging transmission member one 30434 is arranged on the outer movable plate 30431, the engaging transmission member two 30435 is arranged on the inner movable plate 30432, and the rack 30436 is arranged on the engaging transmission member one 30434 and the engaging transmission member two 30435 respectively, and the rack 30436 is in meshing connection with the driven component 30433.

[0057] It should be noted that the outer movable plate 30431 and the inner movable plate 30432 are movably arranged on the inner wall of the distributing groove 3041, and the slide rods are arranged on the outer movable plate 30431 and the inner movable plate 30432 respectively, and the slide grooves are arranged on the inner wall of the distributing groove 3041. The driven component 30433 is rotatably arranged in the distributing groove 3041 through a shaft, and the driven component 30433 is a transmission gear. The inner recess is arranged on the outer movable plate 30431, and the driven component 30433 is arranged in the inner recess. The outer movable plate 30431 is connected with the engaging transmission member one 30434, the engaging transmission member one 30434 is connected with the upper movable plate 30423, the inner movable plate 30432 is connected with the engaging transmission member two 30435, the engaging transmission member two 30435 is connected with the lower movable plate 30421, and then the lower movable plate 30421 moves downward and the upper movable plate 30423 moves relatively.

[0058] In an embodiment of the present application, as shown in Figure 3 and Figure 6 The material passing member 3044 includes a hollow frame 30441, a movable rod frame 30442, a baffle 30443, a reset component 30444, a material blocking plate 30445 and a material passing opening 30446.

[0059] The hollow frame 30441 is arranged on the lower movable plate 30421, the movable rod frame 30442 is movably arranged in the hollow frame 30441, and the baffle 30443 is arranged on the movable rod frame 30442. The two ends of the reset component 30444 are connected with the hollow frame 30441 and the baffle 30443 respectively, the material blocking plate 30445 is arranged on the movable rod frame 30442, and the material passing opening 30446 is arranged on the hollow frame 30441.

[0060] It should be noted that the raw material in the lower movable plate 30421 passes through the material passing opening 30446 into the hollow frame 30441, and the opening slot for discharging is arranged on the bottom wall of the hollow frame 30441, and the opening slot for discharging is larger than the diameter of the material passing opening 30446. The reset component 30444 is a reset spring, when the movable rod frame 30442 moves under force, the material blocking plate 30445 moves to open the material passing opening 30446.

[0061] Further, the elastic force of the reset component 30444 satisfies that the weight accumulated on the movable lever frame 30442 is less than the elastic force of the reset component 30444. When the movable lever frame 30442 and the top plate 30454 are separated, the movable lever frame 30442 drives the material blocking plate 30445 to move and block the material passing opening 30446. A limiting plate is arranged in the hollow frame 30441, and the movable lever frame 30442 is limited by abutting against the limiting plate when moving.

[0062] In an embodiment of the present application, as shown in Figure 3 and Figure 7 , the material toping component 3045 comprises an outer sleeve 30451, a fixed shaft seat 30452, a volute spring 30453 and a top plate 30454.

[0063] The fixed shaft seat 30452 is arranged on the bottom wall of the material distributing groove 3041, the outer sleeve 30451 is rotatably arranged on the fixed shaft seat 30452, and the volute spring 30453 is arranged at the connection between the outer sleeve 30451 and the fixed shaft seat 30452. The top plate 30454 is arranged on the outer sleeve 30451, and the top plate 30454 and the movable lever frame 30442 are abuttingly connected.

[0064] It should be noted that the fixed shaft seat 30452 comprises a shaft seat and a shaft rod, the shaft seat is arranged on the bottom wall of the material distributing groove 3041, the outer sleeve 30451 is rotatably arranged on the shaft rod, the top plate 30454 is abuttingly arranged on the movable lever frame 30442, and the movable lever frame 30442 is provided with an extension clamping plate at one end outside the hollow frame 30441, the top plate 30454 is abuttingly arranged on the extension clamping plate, and the movable lever frame 30442 is automatically opened when the lower movable plate 30421 moves downward. When the lower movable plate 30421 moves upward and the top plate 30454 is separated, the top plate 30454 is reset by the volute spring 30453.

[0065] Further, in order to satisfy that the top plate 30454 pushes open the movable lever frame 30442 when the top plate 30454 is abuttingly arranged on the movable lever frame 30442 during the movement of the lower movable plate 30421, the elastic force of the volute spring 30453 is greater than the elastic force of the reset component 30444.

[0066] In an embodiment of the present application, as shown in Figure 1 and Figure 8 , the material weighing assembly 40 comprises a connecting support 401, a first rotating rod 402, a sleeve 403, a second rotating rod 404, a material weighing balancing mechanism 405 and a quantitative material dropping mechanism 406.

[0067] The connecting support 401 is arranged in the box body 101, the first rotating rod 402 is rotatably arranged on the connecting support 401, and the sleeve 403 is arranged on the first rotating rod 402. The second rotating rod 404 is rotatably arranged on the sleeve 403, the weighing balance mechanism 405 is arranged on the second rotating rod 404, the quantitative material dropping mechanism 406 is arranged in the box body 101, and the weighing balance mechanism 405 is abutted and connected to the quantitative material dropping mechanism 406.

[0068] It should be noted that the connecting support 401 is arranged in the box body 101, the first rotating rod 402 is connected to the connecting support 401 through a shaft, and the first rotating rod 402 is forced to rotate downward. The force required for the first rotating rod 402 to rotate is set according to the total amount of the raw material required for injection molding. The quantitative material dropping mechanism 406 is forced to rotate, and when the weighing balance mechanism 405 moves downward and falls on the quantitative material dropping mechanism 406, the force received by the quantitative material dropping mechanism 406 is set according to the total amount of the raw material required for injection molding.

[0069] In one embodiment of the present application, as shown in Figure 1 and Figure 8 The weighing balance mechanism 405 comprises a weighing box 4051, a movable cover plate 4052, a limiting rod support 4053, a limiting ring 4054, an elastic component 4055 and a convex plate 4056.

[0070] The weighing box 4051 is arranged on the second rotating rod 404, the movable cover plate 4052 is movably arranged on the weighing box 4051, and the limiting rod support 4053 is arranged on the movable cover plate 4052. The limiting ring 4054 is arranged on the bottom wall of the weighing box 4051, and the limiting rod support 4053 movably passes through the limiting ring 4054. The convex plate 4056 is arranged on the weighing box 4051, and the two ends of the elastic component 4055 are respectively connected to the convex plate 4056 and the limiting rod support 4053.

[0071] It should be noted that the raw material falls into the weighing box 4051, and when the raw material is stored in the weighing box 4051, the movable cover plate 4052 is opened from the weighing box 4051 as the amount of raw material gradually increases, and the raw material falls out of the weighing box 4051. The elastic component 4055 is a volute spring, which drives the movable cover plate 4052 to reset and adhere to the weighing box 4051.

[0072] Further, when the upper storage box 30422 falls and stores in the weighing box 4051, for example, the raw material in the upper storage box 30422 falls in the weighing box 4051 with a weight of 20 kg, the weighing box 4051 rotates downward through the first rotating rod 402. The weighing box 4051 falls on the fixed plate 40621 during the downward overturning process, and the fixed plate 40621 supports the weighing box 4051 through the return component 4063. The initial rotating force of the fixed plate 40621 and the return component 4063 is the weight of the raw material required in the injection molding equipment, for example, the required raw material weight is 35 kg, and the raw material weight filled in the two weighing boxes 4051 is 40 kg, then the weighing box 4051 overturns downward, and the raw material falls from the chute into the injection molding equipment. As the raw material decreases, the fixed plate 40621 rotates to reset, and the time of the fixed plate 40621 and the return component 4063 to reset is set according to the time of the weighing box 4051 to overturn and rebound, so as to meet the amount of the filled raw material and the time of the fixed plate 40621 to reset.

[0073] In one embodiment of the present application, as shown in Figure 7 The quantitative material falling mechanism 406 includes a positioning shaft rod 4061, a material falling support 4062, and a return component 4063.

[0074] The positioning shaft rod 4061 is arranged in the box body 101, the material falling support 4062 is rotatably arranged on the positioning shaft rod 4061, the return component 4063 is sleeved on the positioning shaft rod 4061, and the return component 4063 is connected with the material falling support 4062.

[0075] The material falling support 4062 includes a fixed plate 40621, a positioning hole 40622, and a top rod 40623.

[0076] The fixed plate 40621 is rotatably arranged on the positioning shaft rod 4061, the positioning hole 40622 is arranged on the fixed plate 40621, and the top rod 40623 is arranged on the fixed plate 40621.

[0077] It should be noted that the fixed plate 40621 is arranged on the positioning shaft rod 4061 and rotates by being inserted into the positioning hole 40622 on the positioning shaft rod 4061. The top rod 40623 abuts against the movable cover plate 4052, the movable cover plate 4052 is provided with a protrusion at the bottom wall, and the top rod 40623 abuts against the protrusion to support the weighing box 4051 in the horizontal state and limit the movable cover plate 4052.

[0078] Further, in order to meet the requirement that the raw material falls from the weighing tank 4051 when the weighing tank 4051 abuts against the fixed plate 40621 during rotation and the elastic component 4055 pushes the movable cover plate 4052 to move to open the weighing tank 4051, a chute is formed on the fixed plate 40621, and the raw material falls from the chute. The elastic force of the elastic component 4055 is greater than the resistance of the movable cover plate 4052 abutting against the fixed plate 40621.

[0079] In one embodiment of the present application, as shown in Figure 1 The feeding mechanism 20 includes a feeding chute 201, a dropping port 202, and a blocking base plate 203.

[0080] The feeding chute 201 is arranged on the box body 101, the dropping port 202 is formed on the box body 101, and the blocking base plate 203 is arranged on the box body 101.

[0081] It should be noted that the raw material is placed in the feeding chute 201, and then falls and enters the box body 101 through the dropping port 202. The raw material is intercepted by the blocking base plate 203 during falling.

[0082] Specifically, the step of quantitatively feeding the rotomolding equipment is as follows: the raw material particles for injection molding are placed into the box body 101 through the feeding mechanism 20, the placed raw material enters the tank 301 along the feeding chute 201 and the dropping port 202, and is intercepted by the blocking base plate 203 during entering, and then enters the storage tank 303 through the feeding port 302. The inverted raw material is the raw material storage for one injection molding, so the raw material is stored in the storage tank 303 and falls into the distribution chute 3041, respectively.

[0083] After the raw material enters the distribution chute 3041, the raw material is gradually stored in the storage tank 30422. As the raw material gradually increases, the lower movable plate 30421 moves downward, and the upper movable plate 30423 moves upward through the cooperation of the driven part 3043 during the downward movement of the lower movable plate 30421. When the lower movable plate 30421 moves downward, the engagement transmission part two 30435 moves, and the engagement transmission part two 30435 and the driven part 30433 engage to drive the engagement transmission part one 30434 to move relatively, so as to meet the relative movement of the lower movable plate 30421 and the upper movable plate 30423.

[0084] When the lower movable plate 30421 moves downward, the movable rod frame 30442 abuts against the material pushing piece 3045, the material pushing piece 3045 is forced to rotate, then the material pushing piece 3045 drives the movable rod frame 30442 to move, the movable rod frame 30442 is pushed to move in the hollow frame 30441, the material blocking plate 30445 is driven to move to open the material passing opening 30446. The raw material falls from the material passing opening 30446 and enters the weighing tank 4051. As the raw material enters the weighing tank 4051 from the storage tank 30422, the storage tank 30422 moves upward as the raw material in the storage tank 30422 gradually decreases. When the movable rod frame 30442 and the material pushing piece 3045 are separated, the movable rod frame 30442 is reset by the reset component 30444, then the material blocking plate 30445 blocks the material passing opening 30446. As the raw material in the weighing tank 4051 gradually increases, the weight of the raw material in the weighing tank 4051 reaches a preset value, then the weighing tank 4051 rotates downward and abuts against the material falling support 4062. When the fixed plate 40621 rotates, the ejector rod 40623 and the weighing tank 4051 are separated, the movable cover plate 4052 is pushed to move by the elastic component 4055, then the raw material falls from the weighing tank 4051 and enters the injection molding equipment through the material outlet opening 102.

[0085] In summary, the high-temperature steam rotational molding equipment with quantitative feeding of the embodiment can accurately control the single feeding amount by adopting the double movable plate and meshing transmission structure, combining the dynamic cooperation of the material pushing piece and the material passing piece, automatically opening and closing the material falling through gravity feedback, ensuring that the weight of the injection molding raw material strictly meets the set value, and improving the product consistency.

[0086] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and deformations to the above embodiments within the scope of the present application.

Claims

1. A high temperature steam rotational molding apparatus with dosing, characterized in that, The application relates to a rotomolding feeding box, which comprises a feeding box (10), a sample feeding mechanism (20), a material distributing assembly (30) and a material weighing assembly (40), wherein, the feeding box (10) comprises a box body (101) and a discharging opening (102), wherein, the discharging opening (102) is arranged on the box body (101); the sample feeding mechanism (20) is arranged in two groups, and the two groups of sample feeding mechanisms (20) are arranged on the top wall of the box body (101) respectively; the material distributing assembly (30) is arranged in two groups, and each group of material distributing assemblies (30) is arranged on the sample feeding mechanism (20) correspondingly; the material distributing assembly (30) comprises a material box (301), a feeding port (302), a material storage groove (303) and a material distributing mechanism (304), wherein, the material box (301) is arranged in the box body (101); the feeding port (302) is arranged on the material box (301); the material storage groove (303) is arranged in the material box (301); the material distributing mechanism (304) is arranged on the material storage groove (303); the material distributing mechanism (304) comprises a material distributing groove (3041), a quantitative material storage part (3042), a driven part (3043) and a material passing part (3044), a material lifting part (3045) and a discharging port (3046), wherein, the material distributing groove (3041) is arranged on the material storage groove (303); the quantitative material storage part (3042) is movably arranged in the material distributing groove (3041); the quantitative material storage part (3042) comprises a lower movable plate (30421), a material storage box (30422), an upper movable plate (30423) and a buffer part (30424), wherein, the lower movable plate (30421) is movably arranged in the material distributing groove (3041); the material storage box (30422) is arranged on the lower movable plate (30421); the upper movable plate (30423) is movably arranged in the material distributing groove (3041); the buffer part (30424) is connected with the lower movable plate (30421) and the upper movable plate (30423) respectively; the driven part (3043) is arranged in the material distributing groove (3041), and the quantitative material storage part (3042) is arranged on the driven part (3043); the material passing part (3044) is arranged on the quantitative material storage part (3042); the material lifting part (3045) is rotatably arranged in the material distributing groove (3041), and the material lifting part (3045) and the material passing part (3044) are connected in abutment; the discharging port (3046) is arranged on the material distributing groove (3041); the material weighing assembly (40) is arranged in the box body (101); the material weighing assembly (40) comprises a connecting support (401), a first rotating rod (402), a sleeve (403), a second rotating rod (404), a material weighing balancing mechanism (405) and a quantitative material dropping mechanism (406), wherein, the connecting support (401) is arranged in the box body (101); The first rotating rod (402) is rotatably arranged on the connecting support (401); The sleeve (403) is arranged on the first rotating rod (402); The second rotating rod (404) is rotatably arranged on the sleeve (403); The weighing balance mechanism (405) is arranged on the second rotating rod (404); The quantitative material dropping mechanism (406) is arranged in the box (101), and the weighing balance mechanism (405) is connected to the quantitative material dropping mechanism (406).

2. A high temperature steam roto-molding apparatus with dosing according to claim 1, characterized in that, The driven part (30433) is rotatably arranged in the material distribution groove (3041); The engaging transmission part one (30434) is arranged on the outer movable plate (30431); The engaging transmission part two (30435) is arranged on the inner movable plate (30432); The rack (30436) is arranged on the engaging transmission part one (30434) and the engaging transmission part two (30435) respectively, and the rack (30436) and the driven part (30433) are engaged and connected. The material passing part (3044) includes a hollow frame (30441), a movable rod frame (30442), a baffle (30443), a reset part (30444), a material blocking plate (30445), and a material passing opening (30446), wherein The hollow frame (30441) is arranged on the lower movable plate (30421); The movable rod frame (30442) is movably arranged in the hollow frame (30441); 3. The dosing high-temperature steam roasting apparatus according to claim 1, wherein The baffle (30443) is arranged on the movable rod frame (30442); Both ends of the reset part (30444) are connected to the hollow frame (30441) and the baffle (30443) respectively; The material blocking plate (30445) is arranged on the movable rod frame (30442); The material passing opening (30446) is formed in the hollow frame (30441). The material pushing part (3045) includes an outer sleeve (30451), a fixed shaft seat (30452), a volute spring (30453), and a top plate (30454), wherein The fixed shaft seat (30452) is arranged on the bottom wall of the material distribution groove (3041); The outer sleeve (30451) is rotatably arranged on the fixed shaft seat (30452); 4. A high temperature steam roasting apparatus with dosing according to claim 3, characterized in that The volute spring (30453) is arranged at the connection between the outer sleeve (30451) and the fixed shaft seat (30452); ​ ​ ​ The top plate (30454) is arranged on the outer sleeve (30451), and the top plate (30454) and the movable rod holder (30442) are connected in abutment.

5. The dosing high-temperature steam roasting apparatus according to claim 1, wherein The weighing balance mechanism (405) comprises a weighing box (4051), a movable cover plate (4052), a limiting rod holder (4053), a limiting ring (4054), an elastic component (4055) and a convex plate (4056), wherein, The weighing box (4051) is arranged on the second rotating rod (404); The movable cover plate (4052) is movably arranged on the weighing box (4051); The limiting rod holder (4053) is arranged on the movable cover plate (4052); The limiting ring (4054) is arranged on the bottom wall of the weighing box (4051), and the limiting rod holder (4053) movably penetrates through the limiting ring (4054); The convex plate (4056) is arranged on the weighing box (4051); Both ends of the elastic component (4055) are connected with the convex plate (4056) and the limiting rod holder (4053) respectively.

6. A high temperature steam roasting apparatus with dosing according to claim 5, characterized in that The quantitative material dropping mechanism (406) comprises a positioning shaft rod (4061), a material dropping support (4062) and a return component (4063), wherein, The positioning shaft rod (4061) is arranged in the box body (101); The material dropping support (4062) is rotatably arranged on the positioning shaft rod (4061); The return component (4063) is sleeved on the positioning shaft rod (4061), and the return component (4063) is connected with the material dropping support (4062); The material dropping support (4062) comprises a fixed plate block (40621), a positioning hole (40622) and a top rod (40623), wherein, The fixed plate block (40621) is rotatably arranged on the positioning shaft rod (4061); The positioning hole (40622) is formed in the fixed plate block (40621); The top rod (40623) is arranged on the fixed plate block (40621).

7. The dosing high-temperature steam roasting apparatus according to claim 1, wherein The sample feeding mechanism (20) comprises a feeding groove (201), a material dropping opening (202) and a material blocking base plate (203), wherein, The feeding groove (201) is arranged on the box body (101); The material dropping opening (202) is formed in the box body (101); The material blocking base plate (203) is arranged on the box body (101).

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