A new type of feeding device for an internal mixer

Abstract

The application provides a novel mixer feeding device, belonging to the technical field of mixer feeding, which comprises a feeding port, a limiting chamber is arranged at the feeding port, a closing plate is arranged in the feeding port, the lower end of the closing plate is hinged to the inner wall of the feeding port, the upper end of the closing plate is hinged to a linkage plate, the end of the linkage plate away from the closing plate is hinged to a sliding block, and the lower end of the closing plate is slidingly connected with an extension plate. The novel mixer feeding device forms a continuously changing material guide hopper in the feeding process, effectively increases the activity of the material, improves the feeding efficiency, effectively reduces the influence of the material amount, the material state and the material volume and other factors in the feeding space on the feeding speed, improves the stability of the feeding efficiency, flexibly controls the size of the feeding space according to the needs of the material, and synchronously performs the feeding work in the opening process of the feeding port, and further improves the feeding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of feeding device of internal mixer, in particular to a new type of feeding device of internal mixer. BACKGROUND

[0002] The internal mixer is a kind of machinery that is provided with a pair of specially shaped rotors and rotates oppositely, and is used for plasticizing and mixing polymer materials in a closed state with adjustable temperature and pressure, in the process of work, the material is sent into the upper opening of the mixing chamber, then the opening is closed by the upper ram and combined with the mixing chamber to form a closed processing space, and then the rotor is rotated to perform internal mixing of the material.

[0003] At present, the internal mixer generally sends the material into the upper opening and then into the mixing chamber through the feeding hopper in the process of feeding, the feeding hopper of the existing internal mixer is usually fixedly arranged at the upper opening, and the material is guided into the upper opening by the inclined bottom, which has the disadvantages of low feeding efficiency, and when the feeding is about to be completed, the material sliding along the inclined bottom is easily affected by the friction force to reduce the feeding speed or even be stranded on the inclined surface, thereby reducing the internal mixing efficiency, in addition, in order to improve the sealing and dustproof performance of the internal mixer, the existing internal mixer is provided with a sealing plate at the upper opening, in the process of feeding, the sealing plate needs to be rotated to open the upper opening first, and then the feeding is performed, which further reduces the feeding efficiency. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a new type of feeding device of internal mixer, which is achieved by the following specific technical means: a feeding port is arranged, a limiting chamber is arranged at the feeding port, an inlet is formed at the top of the limiting chamber, an outlet is formed at the side of the limiting chamber and is connected with the feeding port, a closing plate is arranged in the feeding port, the lower end of the closing plate is hinged to the inner wall of the feeding port, the upper end of the closing plate is hinged to a linkage plate, the end of the linkage plate away from the closing plate is hinged to a sliding block, the sliding block is connected to the side wall of the limiting chamber opposite to the feeding port in a sliding manner, in the state of feeding, the closing plate is in an inclined state, in the non-feeding state, the closing plate is in a vertical state, at this time, the linkage plate is in an inclined state, and the end of the linkage plate away from the closing plate is located above the end close to the closing plate, in the state of feeding, the front and rear end faces of the closing plate and the linkage plate are always attached to the corresponding inner side of the limiting chamber, the lower end of the closing plate is slidingly inserted with an extension plate, the extension plate is connected with a control rope, the two ends of the control rope are connected to the extension plate, a limiting part one, a sliding block and a limiting part two are arranged in the limiting chamber, the control rope passes through the three in sequence, and the control rope is fixedly connected with the sliding block and is slidingly connected with the limiting part one and the limiting part two, the sliding block is slidingly connected to the inner bottom side of the limiting chamber, and the sliding block is hinged with the closing plate through a connecting rod, the limiting part one and the limiting part two are fixedly arranged in the limiting chamber.

[0005] Preferably, the front and rear inner sides of the limiting chamber are provided with arc-shaped sliding grooves, the arc-shaped sliding grooves are symmetrically distributed, arc-shaped sliding blocks are slidably connected in the arc-shaped sliding grooves, the arc-shaped sliding blocks are embedded in the arc-shaped sliding grooves, the arc-shaped sliding blocks are connected to the corresponding end faces of the closing plate, the end face of the closing plate close to the connecting plate is an outward convex arc surface, the end face of the connecting plate close to the closing plate is an inward concave arc surface, the outward convex arc surface and the inward concave arc surface have the same center, and the central angle of the inward concave arc surface is smaller than that of the outward convex arc surface.

[0006] Preferably, the sliding block comprises a sliding seat, an adjusting sleeve is rotatably connected to the sliding seat, an adjusting shaft is inserted into the adjusting sleeve, the adjusting shaft is threadedly connected to the sliding block, the adjusting sleeve is slidably connected to the adjusting shaft and can only slide along the axial direction of the adjusting shaft, the control rope is divided into two sections, one section is a working control section, and the other section is a reset control section, one end of the working control section is connected to the extension plate, the other end of the working control section is connected to the adjusting sleeve through the limiting part one, one end of the reset control section is connected to the extension plate, and the other end of the reset control section is connected to the sliding seat through the limiting part two.

[0007] Preferably, the extension plate is connected to the closing plate through an elastic restraining part.

[0008] Preferably, the limiting part one and the limiting part two are limiting rings, and the control rope is inserted through the limiting rings.

[0009] Preferably, the top surface of the sliding block is inclined, and the sliding surface of the sliding block corresponding to the limiting chamber is uniformly embedded with rolling balls.

[0010] The novel mixer feeding device has the following advantages: 1. The novel mixer feeding device is formed by the cooperation of the feeding port, the limiting chamber, the closing plate and the connecting plate, and a feeding hopper with a continuously changing feeding space is formed during the feeding process, which effectively increases the activity of the material, improves the feeding efficiency, effectively reduces the influence of the amount, state and volume of the material in the feeding space on the feeding speed, and improves the stability of the feeding efficiency. In addition, the size of the feeding space can be flexibly controlled according to the needs of the material, and the feeding work can be simultaneously performed during the opening of the feeding port, further improving the feeding efficiency.

[0011] 2. The novel mixer feeding device is formed by the cooperation of the closing plate, the extension plate, the control rope, the limiting part one, the limiting part two and the sliding block, which continuously changes the position of the material falling point to increase the activity of the material, improves the feeding speed, avoids the accumulation and blockage of the material, and to a certain extent, can play a role in pressing the material, thereby increasing the mixing speed.

[0012] 3. The new mixer feeding device divides the control rope into two sections, and controls the size of the falling space by releasing the reserved amount of the working control section, thereby providing sufficient feeding space for different materials. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the whole structure of the present application.

[0014] Figure 2 It is an enlarged view of A in the present application. Figure 1

[0015] Figure 3 It is a schematic diagram of the structure of the present application in the non-feeding state.

[0016] Figure 4 It is a schematic diagram of the installation structure of the present application.

[0017] Figure 5 It is a schematic diagram of the structure of the feeding port and the limiting chamber of the present application.

[0018] Figure 6 It is a schematic diagram of the structure of the closing plate and the linkage plate of the present application.

[0019] Figure 7 It is a schematic diagram of the structure of the extension plate of the present application.

[0020] Figure 8 It is a schematic diagram of the falling space change of the present application.

[0021] Figure 9 It is a schematic diagram of the connection state between the closing plate and the linkage plate during the rotation process of the closing plate of the present application.

[0022] In the figure: 1, feeding port; 2, limiting chamber; 3, closing plate; 4, linkage plate; 5, sliding block; 6, extension plate; 7, control rope; 71, working control section; 72, reset control section; 8, limiting part one; 9, limiting part two; 10, sliding block; 101, sliding seat; 102, adjusting sleeve; 103, adjusting shaft; 11, connecting rod; 12, arc-shaped sliding groove; 13, arc-shaped sliding block; 14, elastic restraining part; 15, ball bearing. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Please refer to Figure 1 , Figure 2 ,​Figure 3 , FIG Figure 5 , and Figure 6 A new mixer feeding device, comprising a feeding port 1, a limiting chamber 2 is arranged at the right side of the feeding port 1, an inlet is arranged at the top of the limiting chamber 2, an outlet is arranged at the left side of the limiting chamber 2 and is connected with the feeding port 1, the feeding port 1 is a rectangular frame, during installation, an installation groove is arranged at the position of the mixer where the feeding port 1 is installed, as shown in Figure 4 , then the feeding port 1 is directly installed in the installation groove, during feeding, as shown in Figure 1 , the material enters the limiting chamber 2 through the inlet and then enters the feeding port 1 through the outlet, finally enters the mixing chamber through the opening at the top of the mixing chamber, a closing plate 3 is arranged in the feeding port 1, the lower end of the closing plate 3 is hinged to the inner wall of the feeding port 1, as shown in Figure 1 , the lower end of the closing plate 3 is connected with a rotating shaft, the rotating shaft is connected with the front and rear sides of the closing plate 3 respectively and is rotatably inserted into the corresponding inner side wall of the feeding port 1, the upper end of the closing plate 3 is hinged with a linkage plate 4, the end of the linkage plate 4 away from the closing plate 3 is hinged with a sliding block 5, the sliding block 5 is slidably connected to the right side wall of the limiting chamber 2, in the non-feeding state, the closing plate 3 is in a vertical state, as shown in Figure 3 , at this time, the linkage plate 4 is in an inclined state and the right end of the linkage plate 4 is above the left end, the feeding port 1 is in a sealed state, improving the sealing and dustproof performance of the mixer, during feeding, the closing plate 3 is driven to rotate by an electric push rod to open the feeding port 1, as shown in Figure 1 and Figure 3 , the electric push rod drives the closing plate 3 to rotate to the right, the linkage plate 4 moves accordingly, during the rotation of the closing plate 3 to the right, the front and rear end faces of the closing plate 3 and the linkage plate 4 always fit with the corresponding inner side faces of the limiting chamber 2, a feeding space that changes constantly is formed by the rotation of the closing plate 3, and the feeding work can be started when the closing plate 3 moves out of the feeding port 1 from the upper end of the closing plate 3, accordingly improving the feeding efficiency, and the angle of rotation of the closing plate 3 can be flexibly controlled according to the feeding needs, when the closing plate 3 rotates to the preset angle, the electric push rod controls the closing plate 3 to make reciprocating rotational movement for a short distance, so that the feeding space changes constantly, increasing the activity of the material in the feeding space and speeding up the feeding, effectively reducing the influence of the amount, state and volume of the material in the feeding space on the feeding speed, improving the stability of the feeding efficiency, wherein the electric push rod is hingedly connected with the closing plate 3 and the limiting chamber 2.

[0025] Referring to Figure 1 , Figure 2 and Figure 7The lower end of the closing plate 3 is slidingly inserted with the extension plate 6, the control rope 7 is connected on the extension plate 6, both ends of the control rope 7 are connected on the extension plate 6, the limiting member one 8, the sliding block 10 and the limiting member two 9 are arranged in the limiting chamber 2, the control rope 7 passes through the three in sequence, and the control rope 7 is fixedly connected with the sliding block 10 and slidingly connected with the limiting member one 8 and the limiting member two 9, the sliding block 10 is slidingly connected on the inner bottom side of the limiting chamber 2, and the sliding block 10 is hingedly connected with the connecting rod 11 of the closing plate 3, the limiting member one 8 and the limiting member two 9 are fixedly arranged in the limiting chamber 2, when the closing plate 3 is in the vertical state, the extension plate 6 is located in the closing plate 3, and in the process of rotating the closing plate 3 to the right, the connecting rod 11 is synchronously driven to move, the connecting rod 11 drives the sliding block 10 to slide to the right, the control rope 7 is pulled out of the extension plate 6 outwardly under the limitation of the limiting member one 8, when the upper end of the closing plate 3 moves out of the feeding port 1, the extension plate 6 extends out of the closing plate 3, and the distance of the extension plate 6 extending out of the closing plate 3 changes with the change of the rotating angle of the closing plate 3, in the process of feeding, the material enters the mixing chamber through the extended part of the extension plate 6, in the process of reciprocating rotation of the closing plate 3, the extension plate 6 reciprocatingly extends and retracts, thereby continuously changing the material dropping point position in the process of feeding, as shown in Figure 8 The change of the dropping point not only can increase the activity of the material and avoid the accumulation and blockage of the material, but also can play a role of pressing the material to a certain extent, in the process of reciprocating extension and retraction of the extension plate 6, the material below the extension plate 6 is pressed into the mixing chamber, and the speed of the material mixing is accelerated, wherein the limiting member one 8 and the limiting member two 9 are limiting rings, the control rope 7 passes through the limiting rings, the limiting rings are used for limiting the control rope 7, so that the control rope 7 can be switched between the tension state and the relaxation state.

[0026] Refer to Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8The sliding block 10 comprises a sliding seat 101, a regulating sleeve 102 is rotationally connected to the front surface of the sliding seat 101, a regulating shaft 103 is inserted into the regulating sleeve 102, the regulating shaft 103 is threadedly connected with the sliding block 10, the regulating sleeve 102 is slidingly connected with the regulating shaft 103 and can only slide along the axial direction of the regulating shaft 103, the control rope 7 is divided into two sections, one section is a working control section 71, and the other section is a reset control section 72, one end of the working control section 71 is connected to the extension plate 6, the other end of the working control section 71 is connected to the regulating sleeve 102 through the limiting part one 8 and is reserved to be wound on the regulating sleeve 102, one end of the reset control section 72 is connected to the extension plate 6, the other end of the reset control section 72 is connected to the sliding seat 101 through the limiting part two 9, when the closing plate 3 rotates to the right, the sliding block 10 drives the working control section 71 to pull the extension plate 6 to extend outward, and when the closing plate 3 rotates to the left, the sliding block 10 drives the reset control section 72 to pull the extension plate 6 to reset, wherein, when the material volume is large and the material falling space demand is large, the regulating shaft 103 is rotated to drive the regulating sleeve 102 to rotate to release the reserved amount, the elastic restraining part 14 is connected between the one end of the extension plate 6 close to the connecting plate 4 and the closing plate 3, the size of the material falling space is controlled by releasing the reserved amount, and then sufficient material loading space is provided for the material, the distance of the extension plate 6 extending outward is determined by the amount of the reserved amount released, the size of the material falling space is determined by the distance of the extension plate 6 extending outward, and it is shown in Figure 3 and Figure 7 that the more the reserved amount is released, the more relaxed the working control section 71 is, when the closing plate 3 rotates to the right, the sliding block 10 needs to pull the working control section 71 tight first and then can pull the extension plate 6 to slide outward, therefore, the smaller the distance of the extension plate 6 extending outward is, and vice versa, the more the reserved amount is released, the larger the distance of the extension plate 6 extending outward is, and no matter whether the distance of the extension plate 6 extending outward is large or small, the extension plate 6 synchronously performs the reciprocating extension and contraction movement under the action of the elastic restraining part 14 when the electric push rod controls the closing plate 3 to perform the reciprocating rotating movement in a short distance.

[0027] Referring to Figure 1 , Figure 3 and Figure 9, the front and rear inner sides of the limiting chamber 2 are provided with arc-shaped sliding grooves 12, the arc-shaped sliding grooves 12 on the front and rear sides are symmetrically distributed, arc-shaped sliding blocks 13 are slidably connected in the arc-shaped sliding grooves 12, the arc-shaped sliding grooves 12, the arc-shaped sliding blocks 13 and the center of the rotating shaft are arranged in a plane, the arc-shaped sliding blocks 13 are embedded in the arc-shaped sliding grooves 12, and the arc-shaped sliding blocks 13 are respectively connected to the corresponding end faces of the closing plate 3, in the process of rotating the closing plate 3, the arc-shaped sliding blocks 13 slide in the arc-shaped sliding grooves 12, the arc-shaped sliding blocks 13 are used for limiting the closing plate 3, and the stability of the closing plate 3 in the rotating process is improved, the end face of the closing plate 3 close to the connecting plate 4 is an outward convex arc surface, the end face of the connecting plate 4 close to the closing plate 3 is an inward concave arc surface, the outward convex arc surface and the inward concave arc surface have the same center, and the central angle of the inward concave arc surface is smaller than that of the outward convex arc surface, as shown in Figure 9 , in the process of rotating the closing plate 3, the connecting plate 4 is always tightly attached to the connecting part of the closing plate 3.

[0028] Referring to Figure 1 and Figure 2 , the top surface of the sliding block 5 is inclined, the inclined surface can guide the material, the sliding block 5 is uniformly embedded with a plurality of balls 15 on the corresponding sliding surface of the limiting chamber 2, the balls 15 are used for reducing the friction between the sliding block 5 and the limiting chamber 2, and the flexibility of the sliding block 5 is improved.

[0029] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel internal mixer feeding device, comprising a feed inlet, characterized in that: A confinement chamber is provided at the feed inlet. The top of the confinement chamber has an inlet, and the side has an outlet that connects to the feed inlet. A sealing plate is installed inside the feed inlet. The lower end of the sealing plate is hinged to the inner wall of the feed inlet, and the upper end of the sealing plate is hinged to a connecting plate. A sliding block is hinged to the end of the connecting plate away from the sealing plate. The sliding block slides up and down on the side wall of the confinement chamber opposite the feed inlet. In the feeding state, the sealing plate is tilted; in the non-feeding state, the sealing plate is vertical. At this time, the connecting plate is tilted, and the end of the connecting plate away from the sealing plate is close to the sealing plate. Above one end of the plate, in the feeding state, the front and rear ends of the sealing plate and the connecting plate are always in contact with the corresponding inner side of the restriction chamber. An extension plate is slidably inserted at the lower end of the sealing plate. A control rope is connected to the extension plate. Both ends of the control rope are connected to the extension plate. Limiting component one, sliding block and limiting component two are provided in the restriction chamber. The control rope passes through the three in sequence. The control rope is fixedly connected to the sliding block and slidably connected to limiting component one and limiting component two. The sliding block is slidably connected to the inner bottom side of the restriction chamber. The sliding block is hinged to the sealing plate with a connecting rod. Limiting component one and limiting component two are fixedly set in the restriction chamber. The combined action of the feed inlet, the confinement chamber, the sealing plate, and the connecting plate causes the sealing plate to rotate back and forth. During the feeding process, a guide hopper with a constantly changing feeding space is formed, and the extension plate moves back and forth with the rotation of the sealing plate, so as to evenly drop and press the material at different positions.

2. The novel internal mixer feeding device according to claim 1, characterized in that: The inner front and rear sides of the confinement chamber are provided with arc-shaped sliding grooves, which are symmetrically distributed. Arc-shaped sliders are slidably connected in the arc-shaped sliding grooves. The arc-shaped sliders are flatly embedded in the arc-shaped sliding grooves and connected to the corresponding end faces of the sealing plate. The end face of the sealing plate near the connecting plate is a convex arc surface, and the end face of the connecting plate near the sealing plate is a concave arc surface. The convex arc surface and the concave arc surface are concentric, and the central angle of the concave arc surface is smaller than the central angle of the convex arc surface.

3. The novel internal mixer feeding device according to claim 1, characterized in that: The sliding block includes a sliding seat, an adjusting sleeve rotatably connected to the sliding seat, an adjusting shaft inserted into the adjusting sleeve, the adjusting shaft threadedly connected to the sliding block, the adjusting sleeve slidably connected to the adjusting shaft and only able to slide along the axial direction of the adjusting shaft, the control rope is divided into two sections, one is a working control part and the other is a reset control part, one end of the working control part is connected to the extension plate and the other end is connected to the adjusting sleeve through a limiting member one, one end of the reset control part is connected to the extension plate and the other end is connected to the sliding seat through a limiting member two.

4. The novel internal mixer feeding device according to claim 3, characterized in that: An elastic restraint element is connected between the end of the extension plate near the connecting plate and the closing plate.

5. A novel internal mixer feeding device according to claim 3 or 4, characterized in that: Both the first limiting component and the second limiting component are limiting rings, and the control rope passes through the limiting rings.

6. The novel internal mixer feeding device according to claim 1, characterized in that: The top surface of the sliding block is inclined, and ball bearings are evenly embedded on the sliding surface of the sliding block corresponding to the limiting chamber.

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