Pecan shelling device

Abstract

The present invention discloses a pecan shelling device. The pecan shelling device is provided with a lifting motor for driving a lifting arm to achieve lifting in a shelling unit, and a spring and a limit cover are set and fixed on a shelling cylinder. The lifting motor realizes the lifting and lowering of the lifting arm, thereby driving the shelling cylinder, the spring and the limit cover to descend, so that the limit cover covers and clamps the pecans on the chain teeth, thereby forming a limit, and the spring realizes the same fixed limit effect on pecans of different sizes through deformation. Compared with the related art, the pecan shelling device of the present invention has good reliability and high shelling efficiency.

Description

Technical Field

[0001] The invention belongs to the field of mechanical equipment, and in particular relates to a pecan shelling device. Background Art

[0002] Pecans are rich in nutritional value and can be eaten directly or used as food ingredients. They have high health care and medicinal value. Walnut meat is warm, sweet, non-toxic, and has the effects of strengthening the stomach, replenishing blood, and moistening the lungs. However, pecan shells are thick and hard, and it is difficult to break the shells, making them inconvenient to eat.

[0003] In daily life, pecans are mostly shelled by nutcrackers, which are basically achieved by squeezing through door cracks, which is inefficient and labor-intensive. When a large number of pecans need to be shelled in batches, a shelling device is generally used for shelling. The pecan shelling device of the related art conveys the pecans to the shelling station through a conveyor belt, and the cylinder of the shelling station drives the impact head to instantly apply impact pressure, thereby breaking the pecan shells.

[0004] However, when the pecan shelling device of the related art sends the pecans to the shelling station via a conveyor belt, the pecans are limited only by the slots of the conveyor belt. When the impact head hits the pecans from top to bottom, the pecans are easily displaced due to improper force, resulting in shelling failure, poor reliability, and thus affecting the shelling efficiency.

[0005] Therefore, it is necessary to provide a new pecan shelling device to solve the above problems. Summary of the invention

[0006] The invention aims to provide a pecan shelling device with good reliability and high shelling efficiency.

[0007] In order to solve the above technical problems, the present invention provides a pecan shelling device, comprising:

[0008] frame;

[0009] A transmission unit, the transmission unit comprises a transmission motor, a driving gear, a driven gear and a transmission chain, the driving gear and the driven gear are arranged at intervals and the position of the driving gear is higher than the position of the driven gear, the transmission chain is annular and is simultaneously sleeved on the driving gear and the driven gear, the output shaft of the transmission motor is connected to the driving gear, and drives the driving gear to drive the transmission chain to rotate; the transmission chain is formed by a plurality of chain teeth hinged end to end in sequence, and each of the chain teeth is provided with an inverted conical groove;

[0010] A material storage bin, wherein the material storage bin is fixed to the bottom of the frame and the conveyor chain belt is sleeved on one side of the driven gear and is located in the material storage bin;

[0011] The shell breaking unit comprises a lifting motor installed on the top of the frame, a lifting arm installed on the lifting motor, a shell breaking cylinder installed on the lifting arm and arranged in a vertical downward direction, an impact head fixed to the output end of the shell breaking cylinder, a spring sleeved on the shell breaking cylinder and fixedly connected to the shell breaking cylinder at its upper end, and a limit cover fixed to the lower end of the spring; the limit cover comprises a bottom wall, a side wall extending downward in a trumpet shape from the periphery of the bottom wall, and a clearance hole penetrating through the bottom wall, the impact head extends through the clearance hole to be fixedly connected to the shell breaking cylinder; the limit cover is arranged opposite to the chain tooth at the highest position in the conveyor chain belt, and the impact head is spaced a preset distance from the chain tooth when the shell breaking cylinder has a maximum stroke;

[0012] An infrared sensor, the infrared sensor being fixed to the side wall and used for detecting whether there are pecans on the chain teeth directly opposite to the limit cover and generating a material presence signal;

[0013] A pressure sensor, the pressure sensor being fixed to an end of the side wall away from the bottom wall, and being used to detect whether the pressure applied thereto reaches a preset pressure value and generate an in-place signal;

[0014] A controller, wherein the controller is electrically connected to the lifting motor, the conveying motor, the shell breaking cylinder, the infrared sensor and the pressure sensor respectively, and the controller is used to trigger the lifting motor to drive the lifting arm to descend to a fixed stroke after receiving the material presence signal, so that the limit cover abuts against the hickory on the chain tooth and presses the hickory by compressing the spring so that the pressure sensor generates the in-place signal; the controller is also used to receive the in-place signal to trigger the shell breaking cylinder to move a fixed stroke, and the shell breaking cylinder drives the impact head to impact the hickory; the controller is also used to extend the first preset time after receiving the in-place signal and then drive the lifting motor and the shell breaking motor to reset, and at the same time drive the conveying motor to rotate a preset stroke.

[0015] Preferably, if the controller does not receive the material presence signal within a second preset time after driving the conveying motor to rotate a preset stroke, the controller drives the conveying motor to rotate a preset stroke again.

[0016] Preferably, it further comprises a recovery bin, wherein the recovery bin is located below the driving gear and is arranged opposite to the driving gear.

[0017] Preferably, the first preset time is 0.1 seconds, and the second preset time is 0.5 seconds.

[0018] Compared with the related art, the pecan shelling device of the present invention realizes lifting and lowering by arranging a lifting motor for driving the lifting arm in the shell breaking unit, and a spring and a limit cover which are fixed on the shell breaking cylinder. The lifting motor realizes the lifting and lowering of the lifting arm, thereby driving the shell breaking cylinder, the spring and the limit cover to descend, so that the limit cover covers and clamps the pecans on the chain teeth, thereby forming a limit, and the spring realizes the same fixed limit effect on pecans of different sizes through deformation. When the impact head hits the pecan, the pecan will not be offset or displaced regardless of whether the force is in the middle, thereby effectively realizing the shelling of the pecan, with good reliability and high shell breaking efficiency, and 100% shell breaking can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0020] Figure 1 The figure is a schematic diagram of the structure of the pecan shelling device of the present invention.

[0021] Figure 2 for Figure 1 A is an enlarged view of the portion shown in FIG. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please combine Figure 1-2 As shown, the present invention provides a pecan shelling device, including a frame 1, a conveying unit 2, a material storage bin 3, a shelling unit 4, an infrared sensor 5, a pressure sensor 6, and a controller 7.

[0024] The transmission unit 2 includes a transmission motor 21 , a driving gear 22 , a driven gear 23 and a transmission chain belt 24 .

[0025] The driving gear 22 and the driven gear 23 are spaced apart from each other and the driving gear 22 is located higher than the driven gear 23 .

[0026] The conveyor chain belt 24 is ring-shaped and is sleeved on the driving gear 22 and the driven gear 23 at the same time.

[0027] The output shaft of the conveying motor 21 is connected to the driving gear 22 , and drives the driving gear 22 to drive the conveying chain 24 to rotate.

[0028] The conveyor chain 24 is formed by a plurality of chain teeth 241 hinged end to end in sequence, and each chain tooth 241 is provided with an inverted conical groove 242. Each groove 242 is used to convey a pecan, so the size of the groove 242 is generally designed according to the average size of the pecan, and in principle, a small part of the pecan can be accommodated in the groove 242, and no specific limitation is made here.

[0029] The material storage bin 3 is fixed to the bottom of the frame 1 and the conveyor chain 24 is sleeved on one side of the driven gear 23 and is located in the material storage bin 3. The rotation of the conveyor chain 24 can automatically screen a hickory into each groove 242 for transmission.

[0030] The shell breaking unit 4 includes a lifting motor 41 installed on the top of the frame 1, a lifting arm 42 installed on the lifting motor 41, a shell breaking cylinder 43 installed on the lifting arm 42 and arranged in a vertical downward direction, an impact head 44 fixed to the output end of the shell breaking cylinder 43, a spring 45 sleeved on the shell breaking cylinder 43 and whose upper end is fixedly connected to the shell breaking cylinder 43, and a limit cover 46 fixed to the lower end of the spring 45.

[0031] The limiting cover 46 includes a bottom wall 461 , a side wall 462 extending downward from the periphery of the bottom wall 461 in a trumpet shape, and a clearance hole 463 penetrating the bottom wall 461 .

[0032] The impact head 44 extends through the clearance hole 463 to be fixedly connected with the shell breaking cylinder 43 .

[0033] The limiting cover 46 is arranged opposite to the sprocket 241 at the highest position in the conveyor chain belt 24. When the shell breaking cylinder 43 has the maximum stroke, the impact head 44 is spaced a preset distance from the sprocket 241, so that the pecans will not be completely crushed but only the shells will be broken.

[0034] The infrared sensor 5 is fixed to the side wall 462, and is used to detect whether there are pecans on the chain teeth 241 directly facing the limit cover 46 and generate a material signal. The infrared sensor 5 is commercially available, and the model is not limited.

[0035] The pressure sensor 6 is fixed to one end of the side wall 462 away from the bottom wall 461, and is used to detect whether the pressure it receives reaches a preset pressure value and generate a position signal. Since pecans vary in size, the limit cover 46 abuts against the pecans to achieve position fixing of the pecans through the change in the compression degree of the spring 45, and the pressure sensor 6 can achieve the execution standard of the fixing effect and improve reliability. The pressure sensor 6 is commercially available and the model is not limited.

[0036] The controller 7 is electrically connected to the lifting motor 41, the conveying motor 21, the shell breaking cylinder 43, the infrared sensor 5, and the pressure sensor 6. The controller 7 is used to trigger the lifting motor 41 to drive the lifting arm 42 to descend to a fixed stroke after receiving the material presence signal, so that the limit cover 46 abuts against the hickory on the sprocket 241 and compresses the hickory by compressing the spring so that the pressure sensor 6 generates the in-place signal.

[0037] The controller 7 is also used to receive the arrival signal to trigger the shell-breaking cylinder 43 to move a fixed stroke, and the shell-breaking cylinder 43 drives the impact head 44 to impact the hickory.

[0038] The controller 7 is also used to extend the first preset time after receiving the arrival signal and then drive the lifting motor and the shell breaking motor to reset, and drive the conveying motor to rotate the preset stroke. The first preset time is the action time for the shell breaking cylinder 43 to drive the impact head to hit the pecan to achieve shell breaking. In this embodiment, the first preset time is 0.1 seconds, of course, it is not limited to this design time.

[0039] Preferably, the controller 7 is also used to drive the conveying motor 21 to rotate the preset stroke. If the material signal is not received within the second preset time after the conveying motor 21 rotates the preset stroke, the conveying motor 21 is driven to rotate the preset stroke again. The second preset time is used for the infrared sensor to detect whether there are pecans. If pecans are not automatically filled into some grooves, the conveying motor is detected to rotate the preset stroke again after the second preset time to prevent the standby state and improve the shelling efficiency. In this embodiment, the second preset time is 0.5 seconds, of course, it is not limited to this design time.

[0040] More preferably, it also includes a recovery bin 8, which is located below the driving gear 22 and is directly opposite to the driving gear 22, and is used to recover the shelled pecans.

[0041] Compared with the related art, the pecan shelling device of the present invention realizes lifting and lowering by arranging a lifting motor for driving the lifting arm in the shell breaking unit, and a spring and a limit cover which are fixed on the shell breaking cylinder. The lifting motor realizes the lifting and lowering of the lifting arm, thereby driving the shell breaking cylinder, the spring and the limit cover to descend, so that the limit cover covers and clamps the pecans on the chain teeth, thereby forming a limit, and the spring realizes the same fixed limit effect on pecans of different sizes through deformation. When the impact head hits the pecan, the pecan will not be offset or displaced regardless of whether the force is in the middle, thereby effectively realizing the shelling of the pecan, with good reliability and high shell breaking efficiency, and 100% shell breaking can be achieved.

[0042] The above description is only an implementation mode of the present invention. It should be pointed out that, for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present invention, but these all belong to the protection scope of the present invention.

Claims

1. A pecan shelling device, characterized in that: include: frame; A transmission unit, the transmission unit comprises a transmission motor, a driving gear, a driven gear and a transmission chain, the driving gear and the driven gear are arranged at intervals and the position of the driving gear is higher than the position of the driven gear, the transmission chain is annular and is simultaneously sleeved on the driving gear and the driven gear, the output shaft of the transmission motor is connected to the driving gear, and drives the driving gear to drive the transmission chain to rotate; the transmission chain is formed by a plurality of chain teeth hinged end to end in sequence, and each of the chain teeth is provided with an inverted conical groove; A material storage bin, wherein the material storage bin is fixed to the bottom of the frame and the conveyor chain belt is sleeved on one side of the driven gear and is located in the material storage bin; The shell breaking unit comprises a lifting motor installed on the top of the frame, a lifting arm installed on the lifting motor, a shell breaking cylinder installed on the lifting arm and arranged in a vertical downward direction, an impact head fixed to the output end of the shell breaking cylinder, a spring sleeved on the shell breaking cylinder and fixedly connected to the shell breaking cylinder at its upper end, and a limit cover fixed to the lower end of the spring; the limit cover comprises a bottom wall, a side wall extending downward in a trumpet shape from the periphery of the bottom wall, and a clearance hole penetrating through the bottom wall, the impact head extends through the clearance hole to be fixedly connected to the shell breaking cylinder; the limit cover is arranged opposite to the chain tooth at the highest position in the conveyor chain belt, and the impact head is spaced a preset distance from the chain tooth when the shell breaking cylinder has a maximum stroke; An infrared sensor, the infrared sensor being fixed to the side wall and used for detecting whether there are pecans on the chain teeth directly opposite to the limit cover and generating a material presence signal; A pressure sensor, the pressure sensor being fixed to an end of the side wall away from the bottom wall, and being used to detect whether the pressure applied thereto reaches a preset pressure value and generate an in-place signal; A controller, wherein the controller is electrically connected to the lifting motor, the conveying motor, the shell-breaking cylinder, the infrared sensor and the pressure sensor respectively, and the controller is used to trigger the lifting motor to drive the lifting arm to descend to a fixed stroke after receiving the material-in-place signal, so that the limit cover abuts against the hickory on the sprocket and presses the hickory by compressing the spring so that the pressure sensor generates the in-place signal; the controller is also used to receive the in-place signal to trigger the shell-breaking cylinder to move a fixed stroke, and the shell-breaking cylinder drives the impact head to impact the hickory; the controller is also used to extend the first preset time after receiving the in-place signal and then drive the lifting motor and the shell-breaking cylinder to reset, and at the same time drive the conveying motor to rotate the preset stroke. If the material-in-place signal is not received within the second preset time after the controller drives the conveying motor to rotate the preset stroke, the conveying motor is driven to rotate the preset stroke again; A recovery bin is located below the driving gear and is directly opposite to the driving gear.

2. The pecan shelling device according to claim 1, characterized in that: The first preset time is 0.1 seconds, and the second preset time is 0.5 seconds.

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