Flow dividing and filling mechanism for extrusion molding machine

Abstract

The utility model discloses a split-flow filling mechanism for an extrusion molding machine, the split-flow filling mechanism comprises a feeding pipe, a material distributing pipe and a plurality of material distributors which are arranged in sequence along the moving direction of raw materials, the feeding pipe is communicated with the material distributing pipe, each material distributor is provided with a material distributor feeding port and a material distributor discharging port, and the material distributor feeding port is communicated with the material distributing pipe. A feed port of each distributor is communicated with the distributing pipe, all the distributors are driven by a servo motor to act, a pressure sensor for detecting the pressure of raw materials is arranged on the distributing pipe, and the servo motor controls the action of the distributors according to the pressure value of the pressure sensor. The distributor outputs a part of raw materials with the same weight as the product every time the distributor acts, the subsequent cutting mechanism cuts the products with the same weight every time, and the products are good in consistency and high in quality.

Description

Technical Field

[0001] The utility model relates to the technical field of food production equipment, in particular to a flow-dividing and filling mechanism for an extrusion molding machine. Background Art

[0002] At present, the diversion filling mechanism of the extruder is a non-powered transmission. The diversion filling accuracy is completely dependent on the pressure of the output raw materials of the screw extruder in the previous process. If the pressure of the output raw materials is unstable, Figure 6 As shown, the product 6 obtained by cutting the raw materials by the subsequent cutting mechanism will have problems of inconsistent size and weight; in addition, the raw materials in the cavity are subjected to greater shear force and friction, and the heat energy generated is large, which will also affect the material properties of the product, resulting in an uneven surface, inconsistent number and size of bubbles, etc. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a flow-dividing and filling mechanism for an extrusion molding machine, wherein the raw materials and products outputted by the flow-dividing and filling mechanism are of equal weight each time, thereby ensuring the consistency of the products.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A diversion and filling mechanism for an extrusion molding machine comprises: along the movement direction of the raw material, the diversion and filling mechanism comprises a feed pipe, a distribution pipe and a plurality of distributors arranged in sequence, the feed pipe is connected with the distribution pipe, the distributor is provided with a distributor feed port and a distributor discharge port, the distributor feed port is connected with the distribution pipe, all the distributors are driven by a servo motor, a pressure sensor for detecting the pressure of the raw material is provided on the distribution pipe, the pressure sensor detects that the feed pressure value is within the standard range, and the servo motor drives the distributor to output a portion of raw material of the same weight as the product each time it moves.

[0006] Preferably, the distributor comprises a fixed housing, a stator fixed in the housing, and a rotor located in the stator and adapted to the stator, the servo motor drives all the rotors to rotate synchronously, two cross-arranged blades are provided on the rotor, the distributor feed port and the distributor discharge port are respectively provided on the housing and communicate with the inner cavity of the stator;

[0007] When the distributor is working, the rotor is tangent to the stator, the ends of the two blades are always in contact with the inner surface of the stator, the rotor, the blades and the stator surround a distributor cavity, and along the movement direction of the rotor, at the feed port of the distributor, the volume of the distributor cavity gradually increases, and at the discharge port of the distributor, the volume of the distributor cavity gradually decreases.

[0008] Preferably, the position and movement of each of the rotors are synchronized, and the position and movement of the corresponding blades on each of the rotors are synchronized.

[0009] Preferably, a rotor connecting rod passes through each of the rotors, and the rotor connecting rod is mounted on a transmission plate, and the transmission plate is driven by the servo motor.

[0010] Preferably, a stator connecting rod passes through each of the stator connecting rods.

[0011] Preferably, a coupling is provided between the transmission plate and the servo motor.

[0012] Preferably, the servo motor is fixed on the housing.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are:

[0014] The raw materials from the screw extruder are evenly distributed in the feed pipe, and the raw materials evenly enter each feeder. The servo motor drives each feeder to move synchronously once, and the feeder outputs a portion of raw materials to the downstream. At the same time, the pressure sensor detects the pressure of the raw materials in the feed pipe in real time. If the pressure value is detected to be within the set standard range, the feeder will operate to output a portion of raw materials of the same weight as the product, thereby ensuring that the size and weight of the products obtained by the subsequent cutting mechanism are consistent each time, and the product quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model of a flow-dividing and filling mechanism for an extrusion molding machine;

[0016] Figure 2 It is a schematic diagram of the exploded structure of an embodiment of the diversion filling mechanism for the extrusion molding machine of the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of an embodiment of the utility model of a flow-dividing and filling mechanism for an extrusion molding machine;

[0018] Figure 4 yes Figure 3 Schematic cross-sectional view along the AA direction;

[0019] Figure 5 It is a schematic diagram of a product cut by a molding machine using the utility model extrusion molding machine with a diversion filling mechanism;

[0020] Figure 6 It is a schematic diagram of a product obtained by cutting raw materials by an extrusion molding machine in the prior art;

[0021] In the figure: 21, feed pipe; 22, distribution pipe; 23, distributor; 231, shell; 232, stator; 233, rotor; 234, blade; 235, distributor feed port; 236, distributor discharge port; 237, rotor connecting rod; 238, stator connecting rod; 239, transmission plate; 24, servo motor; 25, pressure sensor; 6, product. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] like Figure 1-Figure 4 As shown together, a flow-dividing and filling mechanism for an extrusion molding machine comprises: along the moving direction of the raw material, the flow-dividing and filling mechanism comprises a feed pipe 21, a distribution pipe 22 and a plurality of distributors 23 arranged in sequence, the feed pipe 21 is communicated with the distribution pipe 22, the distributor 23 is provided with a distributor feed port 235 and a distributor discharge port 236, the distributor feed port 235 is communicated with the distribution pipe 22, all the distributors 23 are driven by a servo motor 24, a pressure sensor 25 for detecting the pressure of the raw material is provided on the distribution pipe 22, if the feed pressure value detected by the pressure sensor 25 is within the standard range, the servo motor 24 outputs a portion of raw material of the same weight as the product 6 each time the distributor 23 is driven to move, as shown in FIG. Figure 5 As shown, the subsequent cutting mechanism obtains products 6 of the same size and weight each time, and the products have good consistency and high quality.

[0024] The feed pipe 21 is a three-way Y-shaped pipe, one port of which is connected to the screw extruder, and the other two ports are connected to the feed pipe 22, so that the raw materials from the screw extruder are evenly distributed in the feed pipe 22, and the raw materials evenly enter each feeder 23, and the servo motor 24 drives each feeder 23 to move synchronously once, and each feeder 23 synchronously outputs a portion of raw materials to the downstream, and at the same time, the pressure sensor 25 detects the pressure of the raw materials in the feed pipe 22 (i.e., the feed pressure) in real time; if the feed pressure is detected to be within the set standard range, each feeder 23 outputs a portion of raw materials of the same weight as the product 6. If it is detected that the feed pressure deviates from the set standard range, it is necessary to adjust the output pressure of the screw extruder so that the feed pressure is within the standard range, to ensure that each feeder 23 outputs a portion of raw materials of the same weight as the product 6 each time it moves, and to ensure that the size and weight consistency of the final product 6 is good.

[0025] The diverter filling mechanism is equipped with a servo motor 24 and a pressure sensor 25, which overcomes the disadvantages of the previous non-powered transmission, controls the low pressure level, has no pressure peak, achieves consistent portioning accuracy, and truly ensures that the product is uniform during the production cycle.

[0026] The distributor 23 includes a housing 231, a stator 232 fixed in the housing 231, and a rotor 233 located in the stator 232 and adapted to the stator 232. The servo motor 24 drives all the rotors 2344 to rotate synchronously. Two cross-arranged blades 234 are provided on the rotor 233. The blades 234 can slide on the rotor 233. The two blades 234 are respectively provided with avoidance gaps to avoid motion interference. The distributor feed port 235 and the distributor discharge port 236 are respectively provided on the housing 231 and communicate with the inner cavity of the stator 232. In the illustrated embodiment, all the distributors 23 share one housing 231.

[0027] When the distributor 23 is working, the servo motor 24 drives the rotor 233 to move in the stator 232. The rotor 233 is tangent to the stator 232. The ends of the two blades 234 are always in contact with the inner surface of the stator 232. The rotor 233, the blades 234 and the stator 232 form a closed distribution chamber. Along the movement direction of the rotor 233, at the distributor feed port 235, the volume of the distribution chamber gradually increases, and the raw materials are continuously filled into the distribution chamber. At the distributor discharge port 236, the volume of the distribution chamber gradually decreases, and the raw materials in the distribution chamber are squeezed downward into the distributor discharge port 236 and output downstream. If the pressure sensor 25 detects that the feed pressure is within the set standard range, the servo motor 24 drives all rotors 233 to rotate synchronously at the same angle, so that all distributors 23 synchronously output a portion of raw materials of the same weight as the product.

[0028] Furthermore, the position and movement of each rotor 233 are synchronized, and the position and movement of the corresponding blade 234 on each rotor 233 are synchronized, so that each distributor 23 can move synchronously, and subsequent processes can obtain raw materials at the same time, ensuring production consistency and improving production efficiency.

[0029] Each rotor 233 is connected by four rotor connecting rods 237, which penetrate all rotors 233 and connect all rotors 233 together, forcing each rotor 233 to have consistent position and movement. One end of the four rotor connecting rods 237 is respectively mounted on the transmission plate 239. The servo motor 24 drives the transmission plate 239 to rotate, thereby driving all rotors 233 to rotate synchronously. According to the pressure detected by the pressure sensor 25, the servo motor 24 adjusts the angle of rotation of the rotor 233 so that each distributor 23 can divide the portions consistently. Each stator 232 is connected by two stator connecting rods 238, which penetrate all stators 232, forcing each stator 232 to have consistent position.

[0030] A coupling is provided between the servo motor 24 and the transmission plate 239 for displacement compensation.

[0031] The servo motor 24 is fixed to one end of the housing 231 .

[0032] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A split-flow filling mechanism for an extrusion molding machine, characterized in that: Along the movement direction of the raw materials, the diversion filling mechanism includes a feed pipe, a dividing pipe and a plurality of dividers arranged in sequence, the feed pipe is connected with the dividing pipe, the divider is provided with a divider feed port and a divider discharge port, the divider feed port is connected with the dividing pipe, all the dividers are driven by a servo motor, a pressure sensor for detecting the pressure of the raw materials is provided on the dividing pipe, the pressure sensor detects that the feed pressure value is within the standard range, and the servo motor drives the divider to output a portion of raw material of the same weight as the product each time it moves.

2. The flow-dividing filling mechanism for an extrusion molding machine according to claim 1, characterized in that: The distributor comprises a fixed housing, a stator fixed in the housing, and a rotor located in the stator and adapted to the stator. The servo motor drives all the rotors to rotate synchronously. Two cross-shaped blades are arranged on the rotor. The distributor feed port and the distributor discharge port are respectively arranged on the housing and communicate with the inner cavity of the stator. When the distributor is working, the rotor is tangent to the stator, the ends of the two blades are always in contact with the inner surface of the stator, the rotor, the blades and the stator surround a distributor cavity, and along the movement direction of the rotor, at the feed port of the distributor, the volume of the distributor cavity gradually increases, and at the discharge port of the distributor, the volume of the distributor cavity gradually decreases.

3. The flow-dividing filling mechanism for an extrusion molding machine according to claim 2, characterized in that: The position and movement of each of the rotors are synchronized, and the position and movement of the corresponding blades on each of the rotors are synchronized.

4. The flow-dividing filling mechanism for an extrusion molding machine according to claim 3, characterized in that: A rotor connecting rod passes through each of the rotors, and the rotor connecting rod is mounted on a transmission plate, and the transmission plate is driven by the servo motor.

5. The flow-dividing filling mechanism for an extrusion molding machine according to claim 3, characterized in that: A stator connecting rod penetrates each of the stator connecting rods.

6. The flow-dividing filling mechanism for an extrusion molding machine according to claim 4, characterized in that: A coupling is arranged between the transmission plate and the servo motor.

7. The flow-dividing filling mechanism for an extrusion molding machine according to claim 2, characterized in that: The servo motor is fixed on the housing.

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