Internal mixer
By designing the piston block and partition structure in the feeding assembly, the problems of missing or forgotten raw material addition during the internal mixer feeding process were solved, enabling orderly and accurate addition of multiple raw materials, thus improving operational efficiency and safety.
Patent Information
- Application Number
- CN202520632219.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing internal mixers are prone to problems such as missing or forgetting to add raw materials during the feeding process, especially when there are many types of raw materials, which makes operation inconvenient and prone to confusion.
A feeding assembly was designed, including a feed pipe, a conical hopper, a baffle plate, and a piston block. The storage and entry of raw materials into the internal mixer are controlled by the sliding and rotation of the piston block, ensuring that all types of raw materials are added at once to avoid omissions or forgetting to add them.
This ensures the orderly addition of raw materials, avoids omissions and forgetfulness, improves the accuracy and efficiency of feeding, and prevents the internal temperature of the mixer from overflowing.
Smart Images

Figure CN223948244U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cable production technology, specifically relating to a mixing machine. Background Technology
[0002] An internal mixer is a type of equipment used for plasticizing and mixing polymer materials such as rubber and plastics. It is widely used in various fields including rubber products, plastic products, chemicals, pharmaceuticals, and food, such as cable production. Its working principle involves a pair of relatively rotating rotors of specific shapes intermittently plasticizing and mixing polymer materials in a closed environment with adjustable temperature and pressure. During operation, the material is fed through the feed port, and the pressure block forces the material into the mixing chamber. The rotation of the rotors subjectes the material to strong shearing, compression, and friction, causing the material to circulate repeatedly within the mixing chamber until the desired degree of mixing is achieved.
[0003] When using existing internal mixers, operators usually pour the raw materials directly into the mixer from the feeding port. However, this method has the drawback that if there are many types of raw materials, and the operator needs to pour the raw materials into the mixer in several batches, confusion can easily occur during the pouring process. That is, one or more raw materials may be missed or forgotten to be added, which makes the operation very inconvenient. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a mixing machine to improve the feeding effect of feeding materials into the mixing machine and avoid the situation of missing or forgetting to add materials.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An internal mixer includes a main body with a feed inlet. A feeding assembly is located above the feed inlet. The feeding assembly includes a feed pipe, one end of which is detachably connected to the main body, and the feed inlet is located inside the feed pipe. A conical hopper is located on the outer surface of the other end of the feed pipe. A connecting pipe is located in the middle of the conical hopper and is positioned directly above the feed pipe. An installation gap is provided between the feed pipe and the connecting pipe. Several circumferentially distributed partitions are provided between the connecting pipe and the inner surface of the conical hopper. The two sides of the partitions are respectively fixed to the outer surface of the connecting pipe and the inner surface of the conical hopper. A piston block is located inside the connecting pipe and is slidably connected within the connecting pipe. A push rod is provided on the piston block, one end of which is fixed to the piston block, and the other end of which extends to the end of the connecting pipe.
[0007] Furthermore, the length of the piston block is greater than the length of the installation gap between the connecting pipe and the feed pipe, and the inner diameters of the connecting pipe and the feed pipe are the same.
[0008] Further, the piston block is provided with a discharging gap, and the width of the discharging gap is smaller than the interval between the adjacent partitions.
[0009] Further, the mounting frame is fixed to the shell of the internal mixer main body at one end, and a telescopic rod is arranged on the other end of the mounting frame, the telescopic rod is connected to the mounting frame, and the output end of the telescopic rod is connected to the push rod.
[0010] Further, a bearing is arranged on the mounting frame, the shell of the telescopic rod is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixed to the mounting frame.
[0011] Further, a driven gear is arranged on the shell of the telescopic rod, a driving gear is arranged on the outer side of the driven gear, the driving gear and the driven gear are arranged in meshing mode, a driving motor is arranged on the driving gear, the output end of the driving motor is connected to the driving gear, and the driving motor is fixed to the mounting frame.
[0012] Further, the telescopic rod is one of a hydraulic rod or a linear motor.
[0013] The beneficial effects of the utility model lie in:
[0014] In the technical scheme, a plurality of materials can be poured into the space formed between the adjacent partitions one by one for storage, when the types of the materials are complete, the push rod only needs to be pulled to pull the piston block upwards, so that the piston block moves above the installation interval of the connecting pipe and the feeding pipe, at this time, the materials will fall from the gap of the installation interval between the adjacent partitions into the feeding pipe, and then into the internal mixer main body, when the feeding is completed, the piston block is moved downwards into the feeding pipe at the feeding port, so that the feeding port can be closed to avoid the problem of temperature overflow in the internal mixer main body.
[0015] The other advantages, objects and features of the utility model will be described in the subsequent specification, and are obvious to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to make the objects, technical schemes and beneficial effects of the utility model more clear, the utility model provides the following drawings for description:
[0017] Figure 1 It is a three-dimensional schematic view of the mixer of the utility model;
[0018] Figure 2 It is a side view schematic view of the mixer of the utility model;
[0019] Figure 3 It is a sectional view schematic view of the feeding assembly in the mixer of the utility model;
[0020] Figure 4 It is a connection schematic view of the connecting pipe, the feeding pipe and the partition plate in the mixer of the utility model;
[0021] Figure 5 It is a schematic view of the discharge notch arranged on the piston block in the mixer of the utility model.
[0022] The marks in the drawings are as follows:
[0023] 1, feeding pipe; 2, connecting pipe; 3, mounting spacing; 4, partition plate; 5, conical hopper; 6, piston block; 7, discharge notch; 8, push rod; 9, telescopic rod; 10, bearing; 11, driven gear; 12, driving gear; 13, rotary motor; 14, mixer body; 15, mounting frame. DETAILED DESCRIPTION
[0024] As shown in Figures 1-5 A mixer, comprising a mixer body 14, a feeding port is arranged on the mixer body 14, a feeding assembly is arranged above the feeding port, the feeding assembly comprises a feeding pipe 1, one end of the feeding pipe 1 is detachably connected to the mixer body 14, the feeding pipe 1 can be connected to the mixer body 14 through magnetic attraction or adhesion, and the feeding port is located in the feeding pipe 1, a conical hopper 5 is arranged on the outer side of the other end of the feeding pipe 1, a connecting pipe 2 is arranged in the middle of the cylindrical hopper, the connecting pipe 2 is arranged directly above the feeding pipe 1, and a mounting spacing 3 is arranged between the feeding pipe 1 and the connecting pipe 2, a plurality of circumferentially distributed partition plates 4 are arranged between the inner side of the connecting pipe 2 and the inner side of the conical hopper 5, the two side surfaces of the partition plate 4 are fixed to the outer surface of the connecting pipe 2 and the inner surface of the conical hopper 5 respectively, a piston block 6 is arranged in the connecting pipe 2, the piston block 6 is slidingly connected in the connecting pipe 2, a push rod 8 is arranged on the piston block 6, one end of the push rod 8 is fixed to the piston block 6, and the other end of the push rod 8 extends out of the end of the connecting pipe 2.
[0025] The working principle of the above technical scheme is as follows:
[0026] When it is necessary to add raw materials to the interior of the internal mixer main body 14, several kinds of raw materials are respectively poured into the spaces formed between the adjacent partitions 4 for storage. When the types of raw materials are complete, the piston block 6 can be pulled up by pulling the push rod 8, so that the piston block 6 moves to the position above the installation spacing 3 of the connecting pipe 2 and the feeding pipe 1. At this time, the various raw materials will fall from the gap of the installation spacing 3 between the adjacent partitions 4 into the feeding pipe 1, and then into the internal mixer main body 14. When the addition is completed, the piston block 6 is moved downward to the feeding pipe 1 at the feeding port (which can also be understood as playing the role of the pressing block in the prior art), so that the feeding port is closed, avoiding the problem of temperature overflow in the internal mixer main body 14. That is, the various raw materials required for the internal mixing operation can be stored between the adjacent partitions 4, and then added to the internal mixer main body 14 after being counted correctly. This method can avoid the situation that the operator forgets to add raw materials.
[0027] In an implementable manner, the length of the piston block 6 is greater than the length of the installation spacing 3 between the connecting pipe 2 and the feeding pipe 1, and the inner diameters of the connecting pipe 2 and the feeding pipe 1 are the same, so that the space at the installation spacing 3 can be blocked, and the opening and closing of the installation spacing 3 can be controlled, thereby controlling the timing of adding raw materials.
[0028] In an implementable manner, the piston block 6 is provided with a discharging gap 7, and the width of the discharging gap 7 is less than the spacing between the adjacent partitions 4. By rotating the push rod 8, the orientation of the discharging gap 7 can be changed, and then the push rod 8 is pulled up, so that the discharging gap 7 is in communication with the space between the adjacent partitions 4 corresponding to the discharging gap 7, thereby allowing the raw materials at this position to be discharged into the feeding pipe 1. That is, by rotating and pulling the push rod 8, the orientation of the discharging gap 7 on the piston block 6 can be changed, and then several raw materials can be added separately and in sequence, making the feeding mode more flexible.
[0029] In an implementable manner, the internal mixer main body 14 is provided with a mounting bracket 15, one end of the mounting bracket 15 is fixed to the housing of the internal mixer main body 14, the other end of the mounting bracket 15 is provided with a telescopic rod 9, the telescopic rod 9 is connected to the mounting bracket 15, and the output end of the telescopic rod 9 is connected to the push rod 8. The telescopic rod 9 drives the push rod 8 to move up and down. The telescopic rod 9 can be manually controlled by a remote controller. Of course, the connecting pipe 2, the conical hopper 5 and the feeding pipe 1 are preferably made of transparent material, which is convenient for observing the position of the piston block 6.
[0030] In an implementable manner, the mounting bracket 15 is provided with a bearing 10, the housing of the telescopic rod 9 is fixedly connected to the inner ring of the bearing 10, and the outer ring of the bearing 10 is fixed to the mounting bracket 15. In this arrangement, the telescopic rod 9 not only drives the push rod 8 to move vertically, but also manually rotates the telescopic rod 9 to drive the push rod 8 to rotate.
[0031] In an implementable mode, the shell of the telescopic rod 9 is provided with a driven gear 11, the outer side of the driven gear 11 is provided with a driving gear 12, the driving gear 12 and the driven gear 11 are meshingly arranged, the driving gear 12 is provided with a driving motor, the output end of the driving motor is connected to the driving gear 12, and the driving motor is fixed to the mounting frame 15.
[0032] The driving motor 13 drives the driving gear 12 to rotate, and then drives the driven gear 11 to rotate, and then drives the shell of the telescopic rod 9 to rotate, and then drives the output shaft of the telescopic rod 9 to rotate, and then drives the push rod 8 to rotate, and then realizes the rotation operation of the piston block 6, and it needs to be noted that the driven gear 11 is connected to the shell of the telescopic rod 9, that is, it does not interfere with the telescopic operation of the output end of the telescopic rod 9. In an implementable mode, the telescopic rod 9 is one of a hydraulic rod or a linear motor.
[0033] Finally, it needs to be noted that the above preferred embodiments are only used to illustrate the technical scheme of the utility model and are not limited, although the utility model has been described in detail through the above preferred embodiments, but those skilled in the art should understand that various changes can be made in form and details without departing from the range defined by the claims of the utility model.
Claims
1. A personal mixer, characterized in that: The equipment includes a main body of an internal mixer, a feed inlet on the main body, a feed assembly above the feed inlet, a feed pipe including a feed pipe, one end of the feed pipe being detachably connected to the main body of the internal mixer and the feed inlet being located inside the feed pipe, a conical hopper on the outer surface of the other end of the feed pipe, a connecting pipe in the middle of the conical hopper, the connecting pipe being positioned directly above the feed pipe, and an installation gap between the feed pipe and the connecting pipe, several circumferentially distributed partitions between the connecting pipe and the inner surface of the conical hopper, the two sides of the partitions being fixed to the outer surface of the connecting pipe and the inner surface of the conical hopper respectively, a piston block inside the connecting pipe being slidably connected inside the connecting pipe, a push rod on the piston block, one end of the push rod being fixed to the piston block, and the other end of the push rod extending to the end of the connecting pipe.
2. The internal mixer according to claim 1, characterized in that: The length of the piston block is greater than the length of the installation gap between the connecting pipe and the feed pipe, and the inner diameters of the connecting pipe and the feed pipe are the same.
3. The internal mixer according to claim 1, characterized in that: The piston block is provided with a discharge notch, the width of which is smaller than the distance between adjacent partitions.
4. The internal mixer according to claim 1, characterized in that: The internal mixer body is provided with a mounting frame. One end of the mounting frame is fixed to the shell of the internal mixer body, and the other end of the mounting frame is provided with a telescopic rod. The telescopic rod is connected to the mounting frame, and the output end of the telescopic rod is connected to the push rod.
5. A mixer according to claim 4, characterized in that: The mounting bracket is equipped with a bearing, the housing of the telescopic rod is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixed to the mounting bracket.
6. A mixer according to claim 5, characterized in that: The telescopic rod has a driven gear on its housing and a driving gear on its outer side. The driving gear and the driven gear are meshed together. The driving gear has a drive motor on it, and the output end of the drive motor is connected to the driving gear. The drive motor is fixed to the mounting bracket.
7. A mixer according to claim 5, characterized in that: The telescopic rod is either a hydraulic rod or a linear motor.