Sleeve spiral feeding device with adjustable inclination angle

Abstract

The utility model relates to the field of spiral feeding, in particular to a sleeve spiral feeding device with an adjustable inclination angle, which comprises a movable support, a base, a stock bin, an external rotation unit, an internal screw rod unit and an inclination angle unit. The internal screw rod unit penetrates through the side wall of the stock bin, and the external rotation unit is matched with the part, located outside the stock bin, of the internal screw rod unit. The inner screw rod unit is sleeved with the stock bin, the outer rotation unit and the inner screw rod unit are both installed on the movable support, and the movable support is rotationally connected to the base. According to the utility model, the control unit is utilized to adapt to the self-tuning adaptation of the optimal inclination angle of different materials, so as to meet the comprehensive optimization matching of the metering precision and the speed. By adjusting the included angle between the sleeve and the horizontal plane and the included angle between the spiral mechanism and the horizontal plane, materials cannot be scattered by the outer spiral pipe in the process of being pushed by the inner screw rod, and meanwhile the problems that the materials with different characteristics are prone to being stacked and bridged after entering the stock bin unit, and then material retention, uneven discharging, slow discharging and the like occur are solved.

Description

Technical Field

[0001] The utility model relates to the field of spiral feeding, in particular to a sleeve spiral feeding device with an adjustable inclination angle. Background Art

[0002] For viscous food materials, screws are mostly used for dispersion and transportation at present. However, due to the sticky and moist characteristics of the materials themselves, and the long strip-shaped materials will also be squeezed and intertwined with each other, which will affect the stability of the spiral conveying material quantity of the materials. For example, in the conveying of the spiral mechanism, due to the soft and sticky materials with poor fluidity, some materials will be squeezed together into lumps, so that the materials at the spiral outlet will be too much or too little, affecting the conveying accuracy. Therefore, how to stabilize the output accuracy of the spiral mechanism and control the material output volume has become a technical problem to be solved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a sleeve spiral feeding device with an adjustable inclination angle, which adopts a direct current brushless motor to drive the automatic online adjustment function of the inclination angle (SAT) to adapt to the self-tuning adaptation of the optimal inclination angle of different materials, so as to meet the comprehensive optimization and matching of metering accuracy and speed.

[0004] A sleeve spiral feeding device with an adjustable inclination angle provided by the utility model is characterized by comprising a movable bracket, a base, a feed bin, an outer rotation unit, an inner screw unit and an inclination angle unit; the inner screw unit penetrates through the side wall of the feed bin; the outer rotation unit is matched with the part of the inner screw unit located outside the feed bin and is sleeved outside the inner screw unit; the feed bin, the outer rotation unit and the inner screw unit are all installed on the movable bracket; the movable bracket is rotatably connected to the base.

[0005] Further, the outer rotation unit comprises an outer rotation pipe and an outer rotation drive module; the outer rotation drive module is fixed on the movable bracket and is drivingly connected to the outer rotation pipe.

[0006] Further, the outer rotation drive module comprises a first drive motor, a reduction gear and a first fixing plate; the first drive motor and the reduction gear are fixed on the first fixing plate; the first fixing plate is connected to the movable bracket; the first drive motor is drivingly connected to the outer rotation pipe through the reduction gear.

[0007] Further, the inner screw unit comprises an inner screw and an inner screw drive module; the inner screw drive module is fixed at one end of the movable bracket, is located on both sides of the feed bin respectively with the outer rotation unit, and is drivingly connected to the inner screw.

[0008] Further, the inner screw driving module includes a second driving motor and a second fixing plate; the second driving motor is installed on the second fixing plate; the second fixing plate is installed on the movable bracket; the second driving motor is drivingly connected to the inner screw.

[0009] Further, the inclination unit includes a third driving motor, a lead screw and a lead screw sleeve; the third driving motor is fixed on the base; the lead screw sleeve is installed on the movable bracket; the lead screw is sleeved in the lead screw sleeve; the third driving motor is drivingly connected to the lead screw.

[0010] Further, a coupling is provided between the third driving motor and the lead screw; one end of the coupling is fixed on the driving shaft of the third driving motor, and the other end is fixed on the lead screw.

[0011] Further, a limiting module is provided at the top of the lead screw; when the third driving motor drives the lead screw so that the lead screw sleeve abuts against the limiting module, the maximum included angle between the movable bracket and the base is reached.

[0012] Further, the third driving motor is a DC brushless motor.

[0013] Further, a control unit is further included; the control unit is controllably connected to the inclination unit.

[0014] A sleeve screw feeding device with an adjustable inclination angle according to the present invention, by adjusting the included angle between the sleeve and the screw mechanism and the horizontal plane, compared with the prior art, its remarkable features are:

[0015] 1. Solve the problem that during the process of the material being pushed by the inner screw, the rapidly rotating outer rotating tube disperses the materials that were originally pressed together under the action of centrifugal force.

[0016] 2. Solve the problems such as material accumulation and bridging easily formed after entering the bin unit due to different material characteristics, and then material retention, uneven discharging, slow discharging, etc. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a preferred embodiment of the sleeve screw feeding device with an adjustable inclination angle according to the present invention;

[0018] Figure 2 is an exploded view of a preferred embodiment of the sleeve screw feeding device with an adjustable inclination angle according to the present invention;

[0019] Figure 3 is a schematic structural diagram of an outer rotation driving module in a preferred embodiment of the sleeve screw feeding device with an adjustable inclination angle according to the present invention;

[0020] Figure 4 It is a schematic structural view of the inner screw driving module in a preferred embodiment of the sleeve screw feeding device with adjustable tilt angle of the present utility model;

[0021] Figure 5 It is a schematic structural view of the tilt angle unit in a preferred embodiment of the sleeve screw feeding device with adjustable tilt angle of the present utility model;

[0022] Figure 6 It is a sectional view of a preferred embodiment of the sleeve screw feeding device with adjustable tilt angle of the present utility model when the included angle formed by the movable support and the horizontal plane is 0 degree;

[0023] Figure 7 It is a sectional view of a preferred embodiment of the sleeve screw feeding device with adjustable tilt angle of the present utility model when the included angle formed by the movable support and the horizontal plane is 40 degrees.

[0024] Wherein, 1 - movable support, 2 - base, 3 - silo, 4 - outer rotation unit, 5 - inner screw unit, 6 - tilt angle unit;

[0025] 41 - outer rotation pipe, 42 - outer rotation driving module; 421 - first driving motor, 422 - reduction gear, 423 - first fixing plate; 51 - inner screw, 52 - inner screw driving module; 521 - second driving motor, 522 - second fixing plate; 61 - third driving motor, 62 - lead screw, 63 - lead screw sleeve, 64 - coupling. Specific embodiments

[0026] The following will describe the specific embodiments of the present utility model in conjunction with the drawings.

[0027] Please refer to Figure 1 , the present utility model discloses a sleeve screw feeding device with adjustable tilt angle, and a preferred embodiment thereof is composed of a movable support 1, a base 2, a silo 3, an outer rotation unit 4, an inner screw unit 5 and a tilt angle unit 6.

[0028] The external rotation unit 4, the internal screw unit 5, and the silo 3 together form a sleeve screw feeding device. Among them, the internal screw unit 5 is installed through the side wall of the silo 3 and is used to agitate the materials at the bottom of the silo 3 and push the materials from the silo 3 into the external rotation unit 4. The external rotation unit 4 cooperates with the part of the internal screw unit 5 located outside the silo 3 and is installed outside the internal screw unit 5 in a sleeved form. The external rotation unit 4 can also rotate by itself and is used to cooperate with the internal screw unit 5 to jointly push and guide the materials forward. In a typical design, the rotation speeds of the external rotation unit 4 and the internal screw unit 5 are different. In this embodiment, the base for supporting the external rotation unit 4, the internal screw unit 5, and the silo 3 is on the movable bracket 1. The movable bracket 1 is rotatably connected to the base 2. The base 1 is fixed and is the support of the entire device. When the movable bracket 1 rotates around its rotation axis, it drives the external rotation unit 4, the internal screw unit 5, and the silo 3 installed on it to rotate together, so that when the materials move along the direction of the external rotation unit 4, they also have an inclination angle, so as to cooperate with the characteristics of different materials to ensure that the materials can be accurately and evenly conveyed.

[0029] The external rotation unit 4 includes an external rotation tube 41 and an external rotation drive module 42. Among them, the external rotation drive module 42 is composed of a first drive motor 421, a reduction gear 422, and a first fixing plate 423. The first drive motor 421 and the reduction gear 422 are fixed on the upper part of the first fixing plate 423. A hole is opened in the lower part of the first fixing plate 423 for the external rotation tube 41 to pass through. The bottom of the first fixing plate 423 is fixedly connected to the movable bracket 1. The output shaft of the first drive motor 421 is drivingly connected to the reduction gear 422, and the reduction gear 422 cooperates with the teeth on the outer surface of the external rotation tube 41, so as to further drive the external rotation tube 41 to rotate.

[0030] The internal screw unit 5 includes an internal screw 51 and an internal screw drive module 52. The internal screw drive module 52 includes a second drive motor 521 and a second fixing plate 522. The second fixing plate 522 is installed at one end of the movable bracket 1. The second drive motor 521 is installed on the second fixing plate 522, and its drive shaft passes through the second fixing plate 522 and is connected to the internal screw 51. The internal screw 51 passes through the silo 3, and after the other end extends out of the silo 3, it is sleeved inside the external rotation tube 41. That is, the external rotation unit 4 and the internal screw drive template 52 are respectively located on both sides of the silo 3. The internal screw 51 rotates under the drive of the internal screw drive module 52 and pushes the materials in the silo 3 into the external rotation tube 41. In this embodiment, the internal screw drive module 52 is far from the rotation fixing point of the movable bracket 1. Therefore, as the movable bracket 1 rotates, the displacement of the internal screw drive module 52 being lifted is the largest.

[0031] The inclination angle unit 6 is used to push the movable support 1 to rotate around its rotation fixed point, thereby lifting the silo 3, the outer rotation unit 4 and the inner screw unit 5, so that the outer rotation pipe 41 and the inner screw 51 form an angle with the horizontal plane. It includes a third driving motor 61, a lead screw 62, a lead screw sleeve 63 and a coupling 64. The third driving motor 61 is a DC brushless motor and is fixed on the base 2. The lead screw sleeve 63 is installed at a position of the movable support 1 far from the rotation fixed point. The lead screw 62 is sleeved in the lead screw sleeve 63, and one end of it is connected to the third driving motor 61 through the coupling 64. One end of the coupling 64 is fixed on the driving shaft of the third driving motor 61, and the other end is fixed on the lead screw 62. When the third driving motor 61 rotates, it drives the lead screw 62 to rotate through the coupling 64, thereby driving the lead screw sleeve 63 to slide along the lead screw 62, and pushing the movable support 1 to rotate around the rotation fixed point. To prevent the lead screw 62 from falling off from the lead screw sleeve 63, a limit module is provided at the top end of the lead screw 62. In this way, when the lead screw sleeve 63 slides to the end along the lead screw 62, the lead screw sleeve 63 abuts against the limit module and does not continue to move, ensuring safety. When the lead screw sleeve 63 abuts against the limit module, the maximum angle between the movable support 1 and the base 2 is reached. In this embodiment, the maximum angle is 40 degrees, and the minimum angle is horizontal, that is, 0 degree.

[0032] In this embodiment, a control unit is further included. According to different material properties, the inclination angle required for the movable support 1 to be lifted is different. Therefore, the control unit is used to record the angles corresponding to different materials. Then, in actual use, the pre-stored angles can be directly read by the control unit, and then the control unit is used to control the third driving motor 61 in the inclination angle unit 6 to act, so as to complete the angle setting of the movable support 1.

[0033] The working principle of the present utility model is briefly described below:

[0034] First, according to the material characteristics, the corresponding parameters are selected in the control unit, and then the control unit controls the third driving motor 61 to increase the angle formed by the movable support 1 and the horizontal plane (between 0 and 40 degrees), so that the inner screw 51 and the outer rotation pipe 41 also form the same angle with the horizontal plane. When the material falls into the silo 3, it is initially dispersed and pushed into the outer rotation pipe 41 by the inner screw 51. In the area of the outer rotation pipe 41, the first driving motor 421 drives the outer rotation pipe 41, and the second driving motor 521 drives the inner screw 51 to rotate at different speeds, so that the material is dispersed and finally discharged from the other end of the outer rotation pipe 41. For new materials, during the first working process, the value of the angle is adjusted synchronously, so as to test the ideal working angle of the material and store it in the control unit, and it can be directly called during the next production. When it is necessary to disassemble and clean and maintain, some hand-tightening nuts can be manually loosened, and then the outer rotation pipe 41 and the inner screw 51 can be taken out, and they can be separately cleaned and then installed back in sequence.

[0035] The above is only the preferred embodiment of the present utility model and is not intended to limit the scope of implementation of the present utility model. That is, all equivalent changes and modifications made to the content within the scope of the patent application of the present utility model shall fall within the technical scope of the present utility model.

Claims

1. A sleeve screw feeding device with an adjustable tilt angle, characterized in that, It includes a movable support, a base, a silo, an external rotation unit, an internal screw unit and an inclination unit; the internal screw unit passes through the side wall of the silo; the external rotation unit cooperates with the part of the internal screw unit located outside the silo and is sleeved outside the internal screw unit; The silo, the external rotation unit and the internal screw unit are all installed on the movable support; the movable support is rotatably connected to the base.

2. The sleeve screw feeding device with an adjustable tilt angle as described in claim 1, wherein, The external rotation unit includes an external rotation tube and an external rotation drive module; the external rotation drive module is fixed on the movable support and is drivingly connected to the external rotation tube.

3. The sleeve screw feeding device with an adjustable tilt angle according to claim 2, characterized in that, The external rotation drive module includes a first drive motor, a reduction gear and a first fixing plate; the first drive motor and the reduction gear are fixed on the first fixing plate; the first fixing plate is connected to the movable support; The first drive motor is drivingly connected to the external rotation tube through the reduction gear.

4. The sleeve screw feeding device with an adjustable tilt angle according to claim 1, characterized in that, The internal screw unit includes an internal screw and an internal screw drive module; the internal screw drive module is fixed at one end of the movable support, is located on both sides of the silo respectively with the external rotation unit, and is drivingly connected to the internal screw.

5. The casing screw feeding device with an adjustable tilt angle according to claim 4, characterized in that, The internal screw drive module includes a second drive motor and a second fixing plate; the second drive motor is installed on the second fixing plate; the second fixing plate is installed on the movable support; the second drive motor is drivingly connected to the internal screw.

6. The sleeve screw feeding device with an adjustable tilt angle according to claim 1, characterized in that, The inclination unit includes a third drive motor, a lead screw and a lead screw sleeve; the third drive motor is fixed on the base; the lead screw sleeve is installed on the movable support; the lead screw is sleeved in the lead screw sleeve; the third drive motor is drivingly connected to the lead screw.

7. The sleeve screw feeding device with an adjustable tilt angle according to claim 6, characterized in that, A coupling is provided between the third drive motor and the lead screw; one end of the coupling is fixed on the drive shaft of the third drive motor, and the other end is fixed on the lead screw.

8. The sleeve screw feeding device with an adjustable tilt angle according to any one of claims 6 or 7, characterized in that A limit module is provided at the top of the lead screw; when the third drive motor drives the lead screw so that the lead screw sleeve abuts against the limit module, the maximum angle between the movable support and the base is reached.

9. The casing screw feeding device with an adjustable tilt angle according to claim 6 or 7, characterized in that, The third drive motor is a DC brushless motor.

10. The sleeve screw feeding device with an adjustable tilt angle according to claim 1, characterized in that, It further includes a control unit; the control unit is controllably connected to the inclination unit.

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