Earthworm belly opening device and belly opening method

Abstract

The invention discloses an earthworm belly opening device and method. The device comprises a rack, a guide cylinder, a clamping assembly, a sectioning assembly and a grinding block. The guide cylinder comprises a first half cylinder and a second half cylinder, the first half cylinder and the second half cylinder are arranged on the rack in a sliding mode in the vertical direction, the first half cylinder and the second half cylinder can be close to each other or away from each other, a gap is formed between the first half cylinder and the second half cylinder, and the guide cylinder is used for guiding the advancing path of earthworms; the clamping assembly comprises an electric cylinder and a clamping piece, the clamping piece is arranged on the electric cylinder, the electric cylinder is slidably connected with the rack in the left-right direction, the clamping piece can stretch into the gap between the first half cylinder and the second half cylinder, the clamping piece is used for clamping the earthworms stretching into the inlet end of the guide cylinder, and the electric cylinder is used for driving the clamping piece to slide so as to drag the earthworms to slide along the guide cylinder. The sectioning assembly comprises a lifting block and a sectioning knife, the sectioning knife is rotationally arranged on the lifting block, the lifting block is slidably connected to the rack in the vertical direction, and the lifting block is used for driving the sectioning knife to stretch into or be separated from the inner cavity of the guide cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to earthworm killing equipment, in particular to an earthworm opening device and an opening method. BACKGROUND

[0002] Generally, the best way to dry earthworms is to open them up and air dry them.

[0003] The main problem of the current earthworm opening device is that it cannot be better fixed and opened. For example, the earthworm killing machine in patent CN105936055A has some drawbacks when fixing the earthworm. The earthworm is a soft animal, which is easy to twist and deform during being clamped by the V-shaped groove belt. If the cutter hooks the earthworm skin when opening the earthworm, the cutter is easy to tear the earthworm, which ultimately leads to poor quality of the dried earthworm and affects the economic benefit. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides an earthworm opening device which improves the convenience of opening earthworms, reduces the probability of tearing the earthworm skin by the current killing machine, and improves the yield of the product.

[0005] The present application also provides an opening method using the above-mentioned earthworm opening device

[0006] According to an embodiment of the present application, an earthworm opening device comprises a rack, a guide cylinder, a clamping assembly, a cutting assembly and a grinding block. The guide cylinder comprises a first half cylinder and a second half cylinder, both of which are vertically slidably arranged on the rack. The first half cylinder and the second half cylinder can approach or move away from each other, and have a gap between them. The guide cylinder is used to guide the travel path of the earthworm. The clamping assembly comprises an electric cylinder and a clamping piece. The clamping piece is arranged on the electric cylinder, and the electric cylinder is slidably connected to the rack in the left-right direction. The clamping piece can extend into the gap between the first half cylinder and the second half cylinder, and is used to clamp the earthworm extending into the inlet end of the guide cylinder. The electric cylinder is used to drive the clamping piece to slide and drag the earthworm along the guide cylinder.

[0007] The cutting assembly comprises a lifting block and a cutting knife. The cutting knife is rotatably arranged on the lifting block, and the lifting block is vertically slidably connected to the rack. The lifting block is used to drive the cutting knife to extend into or separate from the inner cavity of the guide cylinder. The rotation direction of the cutting knife is opposite to the travel direction of the earthworm. The grinding block is connected to the rack, and a V-shaped opening is arranged on the grinding block. A grinding layer is detachably embedded in the V-shaped opening. The cutting edge of the cutting knife is accommodated in the V-shaped opening, and the cutting edge of the cutting knife is ground by the grinding layer when the cutting knife rotates.

[0008] The present application has at least the following beneficial effects:

[0009] The design of adjusting the gap by sliding the first half cylinder and the second half cylinder of the guide cylinder vertically realizes accurate guidance of the traveling path of earthworms of different specifications, and effectively avoids the distortion of earthworms in the clamping process by using the traction of the clamping assembly; the structure that the electric cylinder of the clamping assembly drives the clamping piece to extend into the gap of the guide cylinder and drags the earthworm to slide is simple, and the direct clamping of the clamping piece can improve the stability of the fixed earthworm; the design that the lifting block of the cutting assembly drives the cutting knife to extend into the inner cavity of the guide cylinder and the rotating direction of the cutting knife is opposite to the traveling direction of the earthworm makes the cutting edge cut the skin of the earthworm in a reverse shearing force, greatly reduces the risk of hooking and tearing, and the cutting depth of the cutting knife can be adaptively adjusted according to the size of the earthworm; the grinding block is arranged to continuously grind the cutting edge during the rotation of the cutting knife, so as to keep the cutting edge sharp and further reduce the skin adhesion. The guide cylinder, the clamping assembly, the cutting assembly and the grinding block are linked to solve the problem that the skin of the earthworm is easily torn in the prior art, and the yield of the earthworm opening and the product quality of the earthworm are significantly improved.

[0010] According to some embodiments of the present application, an elastic member is arranged on the rack, one end of the elastic member is connected to the first half cylinder, the other end of the elastic member is connected to the second half cylinder, the elastic member is used to drive the first half cylinder and the second half cylinder to approach each other, a driving member is connected between the first half cylinder and the second half cylinder, and the driving member is used to drive the first half cylinder and the second half cylinder to approach or move away from each other.

[0011] According to some embodiments of the present application, the driving member is an oval wheel, the oval wheel is rotationally connected to the rack, the first half cylinder and the second half cylinder are each provided with a connecting rod, the connecting rod of the first half cylinder abuts against the upper half of the oval wheel through a first contact wheel, and the connecting rod of the second half cylinder abuts against the lower half of the oval wheel through a second contact wheel.

[0012] According to some embodiments of the present application, the driving member is a gear, the gear is rotationally connected to the rack, the first half cylinder and the second half cylinder are each provided with a rack, the two racks are engaged on the gear, the two racks are arranged in parallel, and the racks drive the first half cylinder and the second half cylinder to approach or move away from each other through the rack.

[0013] According to some embodiments of the present application, the inlet end of the first half cylinder and the second half cylinder is provided with a circular arc transition surface, the arc-shaped inner wall of the first half cylinder and the arc-shaped inner wall of the second half cylinder are each provided with a polytetrafluoroethylene film.

[0014] According to some embodiments of the present application, a discharge plate is further arranged, a discharge groove is formed in the discharge plate, a conveying belt is arranged in the discharge groove, the discharge groove is arranged corresponding to the inlet end of the guide cylinder, the discharge groove is used to accommodate earthworms, and the conveying belt is used to convey earthworms to the inlet end of the guide cylinder.

[0015] According to some embodiments of the present application, the clamping member comprises a clamping cylinder and a clamping arm, the clamping cylinder is arranged on the moving module of the electric cylinder, the electric cylinder is used to drive the clamping cylinder to move along the axial direction of the guide cylinder, and the clamping cylinder is used to drive the clamping arm to extend into the gap between the first half cylinder and the second half cylinder and clamp the earthworm.

[0016] According to some embodiments of the present application, a detector is arranged on the rack, the detector is used to detect whether there is an earthworm at the inlet end of the guide cylinder, the detector is electrically connected with the clamping arm and the clamping cylinder through the controller, when the detector detects that there is an earthworm at the inlet end of the guide cylinder, the clamping arm clamps the earthworm, and the clamping cylinder drives the clamping arm to drag the earthworm to pass through the guide cylinder and the cutting knife.

[0017] According to some embodiments of the present application, a collecting barrel is further arranged, the collecting barrel is used to collect the earthworm dragged by the clamping assembly.

[0018] According to some embodiments of the present application, an earthworm opening method is provided, and the earthworm opening device is applied, and the method comprises the following steps.

[0019] S1, selecting earthworms of a predetermined size, placing the earthworms in wood ash, mixing for 3-5 minutes, then fishing out the earthworms and washing them clean, configuring an alcohol water solution with an alcohol volume of 9%, and placing the washed earthworms in the alcohol water solution for immersion and sterilization;

[0020] S2, adjusting the first half cylinder and the second half cylinder, so that the guide cylinder formed by the first half cylinder and the second half cylinder is within a predetermined size range;

[0021] S3, fishing out the earthworms and placing them at the inlet end of the guide cylinder, starting the clamping assembly, clamping the earthworms by the clamping member, under the driving of the electric cylinder, dragging the earthworms through the guide cylinder and the cutting knife, and cutting the earthworms;

[0022] S4, washing the cut earthworms clean and airing them.

[0023] At least has the following beneficial effects: the earthworm opening method has all the beneficial effects of the earthworm opening device described above, which will not be repeated here.

[0024] Additional aspects and advantages of the present application will be made apparent in the following description, some of which will be made apparent to those skilled in the art from the following description, or will be learned by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described below in conjunction with the drawings and examples, wherein:

[0026] Figure 1 The structure diagram of the earthworm opening device of the embodiment of the present application;

[0027] Figure 2is Figure 1 enlarged view of the middle A;

[0028] Figure 3 is a schematic view of rack and pinion cooperation;

[0029] Figure 4 is Figure 1 explosion of the earthworm opening device shown Figure 1 ;

[0030] Figure 5 is Figure 1 explosion of the earthworm opening device shown Figure 2 ;

[0031] Figure 6 is Figure 5 enlarged view of the middle B;

[0032] Figure 7 is a schematic view of the grinding block.

[0033] The drawings are as follows: frame 100, elastic member 110, driving member 120, detector 130; guide cylinder 200, first half cylinder 210, second half cylinder 220, connecting rod 230, rack 240, circular arc transition surface 250; clamping assembly 300, electric cylinder 310, clamping member 320, clamping air cylinder 321, clamping arm 322; sectioning assembly 400, lifting block 410, sectioning cutter 420; grinding block 500, V-shaped opening 510, grinding layer 520; discharge plate 600, discharge groove 610, conveying belt 620; collection bucket 700. DETAILED DESCRIPTION

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the description of the present application, if the first, second, etc. are described, they are only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0036] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution. The connection can be direct connection or indirect connection through other components.

[0037] ReferringFigures 1 to 7 The worm opening device comprises a frame 100, a guide cylinder 200, a clamping assembly 300, a cutting assembly 400 and a grinding block 500. The guide cylinder 200 comprises a first half cylinder 210 and a second half cylinder 220, both of which are vertically slidably arranged on the frame 100, and can approach or move away from each other, and have a gap between the first half cylinder 210 and the second half cylinder 220, and are used to guide the travel path of the worm; the clamping assembly 300 comprises an electric cylinder 310 and a clamping piece 320, the clamping piece 320 is arranged on the electric cylinder 310, the electric cylinder 310 is slidably connected to the frame 100 in the left-right direction, and the clamping piece 320 can extend into the gap between the first half cylinder 210 and the second half cylinder 220, and is used to clamp the worm extending into the inlet end of the guide cylinder 200, and the electric cylinder 310 is used to drive the clamping piece 320 to slide to drag the worm to slide along the guide cylinder 200. It can be understood that the first half cylinder 210 and the second half cylinder 220 are both made of stainless steel plastic, and the relatively lower second half cylinder 220 is provided with a avoiding opening, which is used to enable the cutting knife 420 to extend into the inner cavity of the guide cylinder 200. The guide cylinder 200 can also be arranged as a whole, and the clamping assembly 300 can directly extend into the guide cylinder 200 along the axial direction of the guide cylinder 200.

[0038] It should be noted that the conventional machine uses a common blade to clamp the worm for cutting, the worm itself contains soil and mucus, the mucus adheres to the blade, which causes the cutting ability of the blade to be limited, and the grinding effect of the soil causes the cutting knife 420 to be dull, which causes the cutting knife 420 to tear the skin of the worm.

[0039] Referring to Figure 6 The cutting assembly 400 comprises a lifting block 410 and a cutting knife 420, the cutting knife 420 is rotatably arranged on the lifting block 410, the lifting block 410 is vertically slidably connected to the frame 100, and is used to drive the cutting knife 420 to extend into or separate from the inner cavity of the guide cylinder 200, and the rotating direction of the cutting knife 420 is opposite to the travel direction of the worm; the grinding block 500 is connected to the frame 100, the grinding block 500 is provided with a V-shaped opening 510, a grinding layer 520 is detachably embedded in the V-shaped opening 510, the cutting edge of the cutting knife 420 is accommodated in the V-shaped opening 510, and the cutting edge of the cutting knife 420 is ground by the grinding layer 520 when the cutting knife 420 rotates. It can be understood that the cutting knife 420 is driven to rotate by a motor, the cutting knife 420 is disc-shaped, the grinding block 500 is actually arranged on the lifting block 410, and the grinding block 500 is indirectly connected to the frame 100 through the lifting block 410.

[0040] It should be understood that, through the vertical sliding adjustment gap design of the first half-tube 210 and the second half-tube 220 of the guide tube 200, the guide tube 200 achieves precise guidance of the movement path of earthworms of different sizes. Utilizing the traction effect of the clamping component 300, the twisting and deformation of the earthworm during clamping is effectively avoided. The structure of the clamping component 300, with its electric cylinder 310 driving the clamping member 320 to extend into the gap of the guide tube 200 and drag the earthworm to slide, is simple in design, and the direct clamping of the clamping member 320 can improve the fixation of the earthworm. The stability of the earthworm is improved; the lifting block 410 of the cutting component 400 drives the cutting blade 420 to extend into the inner cavity of the guide cylinder 200, and the design of the cutting blade 420 rotating in the opposite direction to the earthworm's movement direction creates a reverse shearing force between the blade and the earthworm's skin and flesh during cutting, greatly reducing the risk of snagging and tearing. Furthermore, the cutting depth of the cutting blade 420 can be adaptively adjusted according to the earthworm's body shape. The grinding block 500 continuously grinds the blade during the rotation of the cutting blade 420, maintaining cutting sharpness and further reducing skin and flesh adhesion. The guide cylinder 200, clamping component 300, cutting component 400, and grinding block 500 work together to solve the problem of easily tearing the skin and flesh of earthworms during cutting in the prior art, significantly improving the yield of earthworms after gutting and the product quality of dried earthworms. It should be noted that the cutting blade 420 can also be set as an inclined blade, with the upper part of the blade horizontally aligned with the guide cylinder 200 and the lower part of the blade forming the cutting edge. The cutting edge forms an angle with the horizontal direction, with the angle between 15 and 35°. By adjusting the position of the clamping arm 322, when clamping the earthworm, the clamping arm 322 clamps the upper half of the earthworm. During the dragging of the earthworm, the lower half of the earthworm is pierced by the cutting edge, and the earthworm is cut open as it is dragged.

[0041] Reference Figure 1 and Figure 2 An elastic element 110 is provided on the frame 100. One end of the elastic element 110 is connected to the first half-cylinder 210, and the other end is connected to the second half-cylinder 220. The elastic element 110 is used to drive the first half-cylinder 210 and the second half-cylinder 220 to move closer to each other. A driving element 120 is connected between the first half-cylinder 210 and the second half-cylinder 220, and the driving element 120 is used to drive the first half-cylinder 210 and the second half-cylinder 220 to move closer to or further apart. It can be understood that the elastic element 110 is a helical spring.

[0042] In some embodiments, the drive member 120 is an elliptical wheel, which is rotatably connected to the frame 100. Both the first half-cylinder 210 and the second half-cylinder 220 are provided with connecting rods 230. The connecting rod 230 of the first half-cylinder 210 abuts against the upper half of the elliptical wheel through a first contact wheel, and the connecting rod 230 of the second half-cylinder 220 abuts against the lower half of the elliptical wheel through a second contact wheel.

[0043] Reference Figure 1 and Figure 3, the driving member 120 is a gear, the gear is rotationally connected to the rack 100, the first half cylinder 210 and the second half cylinder 220 are both provided with a rack 240, both racks 240 are engaged on the gear, both racks 240 are arranged in parallel, and the rack 240 drives the first half cylinder 210 and the second half cylinder 220 to approach or move away from each other through the rack 240. It can be understood that, Figure 3 The schematic diagram is for the purpose of clearly showing the linkage relationship between the two racks 240 and the gear, when the two racks 240 approach or move away from each other in the vertical direction, the first half cylinder 210 and the second half cylinder 220 will naturally approach or move away from each other, because the first half cylinder 210 and the second half cylinder 220 are connected together with the rack.

[0044] In some embodiments, the inlet end of the first half cylinder 210 and the second half cylinder 220 is provided with a circular arc transition surface 250, the arc-shaped inner wall of the first half cylinder 210 and the arc-shaped inner wall of the second half cylinder 220 are both provided with a polytetrafluoroethylene film, and it can be understood that the circular arc structure is arranged at all opening positions of the first half cylinder 210 and the second half cylinder 220, the purpose is to avoid the earthworms from being scratched when the earthworms are dragged by the clamping cylinder 321.

[0045] In some embodiments, it further includes a discharging plate 600, the discharging plate 600 is provided with a discharging groove 610, the discharging groove 610 is provided with a conveying belt 620, the discharging groove 610 is arranged corresponding to the inlet end of the guide cylinder 200, the discharging groove 610 is used for accommodating earthworms, and the conveying belt 620 is used for conveying earthworms to the inlet end of the guide cylinder 200. It should be noted that the discharging groove 610 of the discharging plate 600 is provided with a plurality of discharging grooves 610, and the plurality of discharging grooves 610 are arranged in the front-rear direction at intervals, and the guide cylinder 200, the clamping assembly 300, the cutting assembly 400 and the grinding block 500 are all arranged one by one corresponding to the discharging groove 610, that is, the earthworm cutting capacity of the whole device can be improved by setting the number of discharging grooves 610, and it can be understood that each guide cylinder 200 is correspondingly provided with a detector.

[0046] In some embodiments, the clamping member 320 includes a clamping cylinder 321 and a clamping arm 322, the clamping cylinder 321 is arranged on the moving module of the electric cylinder 310, the electric cylinder 310 is used to drive the clamping cylinder 321 to move along the axial direction of the guide cylinder 200, and the clamping cylinder 321 is used to drive the clamping arm 322 to extend into the gap between the first half cylinder 210 and the second half cylinder 220 and clamp the earthworm.

[0047] In some embodiments, the rack 100 is provided with a detector 130 for detecting whether earthworms exist at the inlet end of the guide cylinder 200, the detector 130 is electrically connected to the clamping arm 322 and the clamping cylinder 321 through the controller, when the detector 130 detects that earthworms exist at the inlet end of the guide cylinder 200, the clamping arm 322 clamps the earthworms, and the clamping cylinder 321 drives the clamping arm 322 to drag the earthworms through the guide cylinder 200 and pass through the cutting knife 420. It should be noted that the detector 130 is also electrically connected to the electric cylinder 310 through the controller, and the purpose is to control the clamping cylinder 321 and the electric cylinder 310 to act under the control of the controller when the earthworms are detected, so as to drag the earthworms through the cutting knife 420, because the detector 130 corresponds to the guide cylinder 200, so each clamping cylinder 321 clamps according to the detection result of each self. The opposite end of the clamping arm 322 is provided with an anti-skid convex part, so that the earthworms are more stable when clamped, and the earthworms are prevented from falling during the dragging process.

[0048] Referring to Figure 1 It also includes a collection barrel 700 for collecting earthworms dragged by the clamping assembly 300. It should be noted that the collection barrel 700 contains clean water, when the clamping arm 322 clamps the cut earthworms, the clamping arm 322 releases the earthworms to fall into the collection barrel, and a stirring paddle can be arranged on the collection barrel 700 to stir and wash the earthworms in the collection barrel 700.

[0049] According to the earthworm opening method of the second aspect of the present application, the earthworm opening device is applied, which includes the following steps:

[0050] S1, select earthworms of a predetermined size, mix the earthworms in wood ash for 3-5 minutes, then fish out the earthworms and wash them clean, prepare an alcohol water solution with an alcohol volume of 9%, and immerse and sterilize the washed earthworms in the alcohol water solution; it can be understood that the wood ash is used to remove the mucus of the earthworms, so that the earthworms are more easily cut open.

[0051] S2, adjust the first half cylinder 210 and the second half cylinder 220, so that the guide cylinder 200 formed by the first half cylinder 210 and the second half cylinder 220 is within a predetermined size range;

[0052] S3, fish out the earthworms and place them at the inlet end of the guide cylinder 200, start the clamping assembly 300, and clamp the earthworms with the clamping piece 320, under the drive of the electric cylinder 310, the clamping piece 320 drags the earthworms through the guide cylinder 200 and passes through the cutting knife 420, so that the earthworms are cut open;

[0053] S4, wash and dry the cut earthworms.

[0054] Any technical features in the above-described embodiments can be combined in any manner, and for brevity, not all possible combinations are described, but it is understood that the scope of the specification includes all possible combinations.

[0055] Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. An apparatus for eviscerating earthworms, comprising: The utility model relates to a kind of earthworm cutting machine, including: Rack (100); Guide cylinder (200), including first half cylinder (210) and second half cylinder (220), the first half cylinder (210) and the second half cylinder (220) are vertically slidably arranged in the rack (100), the first half cylinder (210) and the second half cylinder (220) can be close to each other or away from each other, the first half cylinder (210) and the second half cylinder (220) have gap between, the guide cylinder (200) is used to guide the travel path of earthworm; Clamping assembly (300), including electric cylinder (310) and clamping piece (320), the clamping piece (320) is arranged on the electric cylinder (310), the electric cylinder (310) is slidably connected to the rack (100) along left-right direction, the clamping piece (320) can be inserted into the gap between the first half cylinder (210) and the second half cylinder (220), the clamping piece (320) is used to clamp the earthworm inserted into the inlet end of the guide cylinder (200), and the electric cylinder (310) is used to drive the clamping piece (320) to slide to drag earthworm to slide along the guide cylinder (200); Sectioning assembly (400), including lifting block (410) and sectioning knife (420), the sectioning knife (420) is rotatably arranged on the lifting block (410), the lifting block (410) is vertically slidably connected to the rack (100), the lifting block (410) is used to drive the sectioning knife (420) to be inserted into or separated from the inner cavity of the guide cylinder (200), and the rotation direction of the sectioning knife (420) is opposite to the travel direction of earthworm; Grinding block (500) is connected to the rack (100), V-shaped opening (510) is arranged on the grinding block (500), and the V-shaped opening (510) is detachably embedded with grinding layer (520). The cutting edge of the sectioning knife (420) is accommodated in the V-shaped opening (510), and when the sectioning knife (420) rotates, the cutting edge of the sectioning knife (420) is ground by the grinding layer (520).

2. An apparatus for eviscerating earthworms as claimed in claim 1 wherein, Elastic member (110) is arranged on the rack (100), one end of the elastic member (110) is connected to the first half cylinder (210), the other end of the elastic member (110) is connected to the second half cylinder (220), the elastic member (110) is used to drive the first half cylinder (210) and the second half cylinder (220) to be close to each other, and drive member (120) is connected between the first half cylinder (210) and the second half cylinder (220). The drive member (120) is used to drive the first half cylinder (210) and the second half cylinder (220) to be close to or away from each other.

3. An apparatus for eviscerating earthworms as claimed in claim 2 wherein, The driving member (120) is an oval wheel, the oval wheel is rotationally connected to the rack (100), the first half cylinder (210) and the second half cylinder (220) are both provided with a connecting rod (230), the connecting rod (230) of the first half cylinder (210) is abutted to the upper half of the oval wheel through a first contact wheel, and the connecting rod (230) of the second half cylinder (220) is abutted to the lower half of the oval wheel through a second contact wheel.

4. An apparatus for eviscerating earthworms as claimed in claim 2 wherein, The driving member (120) is a gear, the gear is rotationally connected to the rack (100), the first half cylinder (210) and the second half cylinder (220) are both provided with a rack (240), the two racks (240) are both engaged on the gear, the two racks (240) are parallelly arranged, and the rack (240) drives the first half cylinder (210) and the second half cylinder (220) to move close to or away from each other through the rack (240).

5. An apparatus for eviscerating earthworms as defined in claim 1, wherein The inlet end of the first half cylinder (210) and the second half cylinder (220) is provided with a circular arc transition surface (250), and the arc-shaped inner wall of the first half cylinder (210) and the arc-shaped inner wall of the second half cylinder (220) are both provided with a polytetrafluoroethylene film.

6. An apparatus for eviscerating earthworms as defined in claim 1, wherein Further comprising a discharging plate (600), the discharging plate (600) is provided with a discharging groove (610), the discharging groove (610) is provided with a conveying belt (620), the discharging groove (610) is arranged corresponding to the inlet end of the guide cylinder (200), the discharging groove (610) is used for accommodating earthworms, and the conveying belt (620) is used for conveying earthworms to the inlet end of the guide cylinder (200).

7. An apparatus for eviscerating earthworms as defined in claim 1, wherein The clamping member (320) comprises a clamping cylinder (321) and a clamping arm (322), the clamping cylinder (321) is arranged on the moving module of the electric cylinder (310), the electric cylinder (310) is used for driving the clamping cylinder (321) to move along the axial direction of the guide cylinder (200), and the clamping cylinder (321) is used for driving the clamping arm (322) to stretch into and clamp earthworms from the gap between the first half cylinder (210) and the second half cylinder (220).

8. An apparatus for eviscerating earthworms as claimed in claim 7, wherein, The rack (100) is provided with a detector (130), the detector (130) is used for detecting whether earthworms exist at the inlet end of the guide cylinder (200), the detector (130) is electrically connected with the clamping arm (322) and the clamping cylinder (321) through a controller, when the detector (130) detects that earthworms exist at the inlet end of the guide cylinder (200), the clamping arm (322) clamps the earthworms, and the clamping cylinder (321) drives the clamping arm (322) to drag the earthworms to pass through the guide cylinder (200) and pass through the cutting knife (420).

9. An apparatus for eviscerating earthworms as defined in claim 1, wherein Further comprising a collection barrel (700), the collection barrel (700) is used for collecting earthworms dragged by the clamping assembly (300).

10. A method of eviscerating earthworms, characterized by, The earthworm opening device is applied to the earthworm opening device, and comprises the following steps: The driving member (120) is an oval wheel, the oval wheel is rotationally connected to the rack (100), the first half cylinder (210) and the second half cylinder (220) are both provided with a connecting rod (230), the connecting rod (230) of the first half cylinder (210) is abutted to the upper half of the oval wheel through a first contact wheel, and the connecting rod (230) of the second half cylinder (220) is abutted to the lower half of the oval wheel through a second contact wheel. S1, select predetermined size of earthworms, earthworms placed in wood ash mixed 3-5 minutes, then the earthworms out of the wash clean, configuration alcohol volume of 9% alcohol solution, clean the earthworms placed in the alcohol solution immersion and sterilization; S2, adjust the first half cylinder (210) and the second half cylinder (220), so that the first half cylinder (210) and the second half cylinder (220) are formed in the predetermined size range; S3, the earthworms are fished out and placed in the inlet end of the guide cylinder (200), the clamping assembly (300) is started, the clamping piece (320) clamps the earthworms, under the drive of the electric cylinder (310), the clamping piece (320) drags the earthworms from the guide cylinder (200) and passes through the cutting knife (420), so that the earthworms are cut open; S4, the cut open earthworms are washed clean and dried.

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