CN114013089A

CN114013089A - Pressing type rapeseed oil production equipment with pre-screening structure

Info

Publication number: CN114013089A
Application number: CN202111292970.XA
Authority: CN
Inventors: 谈代杰; 谭巨庭
Original assignee: Changde Shimeitang Wanhua Agricultural Products Development Co ltd
Current assignee: Changde Shimeitang Wanhua Agricultural Products Development Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-02-08

Abstract

The invention relates to the technical field of rapeseed oil production, in particular to a squeezing type rapeseed oil production device with a pre-screening structure. The squeezing device comprises a squeezing box and an outer barrel communicated with the squeezing box, wherein two symmetrical limiting frames are arranged inside the squeezing box, and a plurality of squeezing rollers are rotatably arranged inside the limiting frames; the urceolus is inside to be rotated and is equipped with the inner tube, and the inner tube is inside to be rotated and be equipped with the auger delivery pole, and inside the urceolus was stretched out in the inner tube both ends all rotated, and the outer wall intercommunication that the inner tube is close to the top has a shell mouth, and a plurality of through-holes have been seted up to inner tube outer wall equidistant, and inside the through-hole was located the urceolus, the inner tube outer wall was equipped with the spiral plate, spiral plate outer wall laminating urceolus inner wall, the outer wall intercommunication that the urceolus is close to the top has the pipeline, and the pipeline end portion intercommunication has a intercommunication section of thick bamboo, and a intercommunication is established at squeezing the roof portion. The invention not only realizes the screening of the rapeseeds before the pressing, but also transfers the rapeseeds to the inside of the pressing box for pressing while screening, thereby reducing the labor intensity and avoiding the secondary pollution in the transferring process.

Description

Pressing type rapeseed oil production equipment with pre-screening structure

Technical Field

The invention relates to the technical field of rapeseed oil production, in particular to a squeezing type rapeseed oil production device with a pre-screening structure.

Background

Rapeseed oil is commonly called rapeseed oil, namely rapeseed oil, coriander oil, canola oil, sesame oil and canola oil, is edible oil obtained by pressing the rapeseed, the rapeseed needs to be subjected to the steps of hulling, screening, stir-frying, pressing and the like in sequence during the production and processing of the rapeseed so as to produce the rapeseed, although the rapeseed is subjected to primary screening before pressing to remove shells in the rapeseed, the shells of the rapeseed are light and easy to float in a production room, so that the shells of the rapeseed float on the rapeseed during transferring and stir-frying or other operations, the conventional production equipment cannot carry out secondary screening before pressing, the rapeseed contains a large number of shells, the production quality is affected, even if the rapeseed is specially screened by virtue of screening equipment, the rapeseed needs to be carried back and forth until the rappers are thrown into the squeezer, the labor intensity is high, and secondary pollution is easy to cause, in addition, the existing screening equipment is complex in structure, the shell and the rapeseeds cannot be effectively separated, and the practicability is poor.

Disclosure of Invention

The present invention is directed to a press type rapeseed oil production apparatus having a pre-screening structure, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides a pressing type rapeseed oil production device with a pre-screening structure, which comprises a pressing box and an outer cylinder communicated with the pressing box, wherein two symmetrical limiting frames are arranged inside the pressing box, and a plurality of pressing rollers are rotatably arranged inside the limiting frames;

an inner barrel is rotatably arranged in the outer barrel, a spiral conveying rod is rotatably arranged in the inner barrel, two ends of the inner barrel rotatably extend out of the inner barrel, the outer wall of the inner barrel, which is close to the top, is communicated with a shell outlet, a plurality of through holes are formed in the outer wall of the inner barrel at equal intervals, the through holes are positioned in the outer barrel, the outer wall of the inner barrel is provided with a spiral plate, the outer wall of the spiral plate is attached to the inner wall of the outer barrel, the outer wall of the outer barrel, which is close to the top, is communicated with a pipeline, the end part of the pipeline is communicated with a communicating barrel, and the communicating barrel is communicated with the top of the squeezing box;

the top of the outer barrel is provided with an installation frame, the top of the installation frame is provided with a rotating motor, an output shaft of the rotating motor penetrates through the installation frame to be connected with a driving gear, the end part of the driving gear is fixedly connected with the end part of the spiral conveying rod, the outer wall of the driving gear is meshed with a plurality of driven gears, inner gear discs are meshed among the outer walls of the driven gears, and the end parts of the inner gear discs are fixed on the top of the inner barrel;

when the rapeseed press is used specifically, firstly rapeseeds are driven to rotate by a driving gear driven by an output shaft of a rotating motor from an opening at the bottom of an inner cylinder to drive a spiral conveying rod to rotate, the rapeseeds are conveyed upwards by the spiral conveying rod and fall between an outer cylinder and the outer wall of the inner cylinder from a plurality of through holes, a shell of the rapeseeds is retained in the inner cylinder to screen the rapeseeds, and meanwhile, a driven gear is driven to rotate by meshing, then an inner gear disc is meshed to rotate, the inner cylinder is driven to rotate in the outer cylinder, the screened rapeseeds are transmitted to the interior of a pipeline along a spiral plate and then fall into a press box along the inner wall of the pipeline, and then the rapeseeds are squeezed between two rotating press rollers to press the rapeseeds.

As a further improvement of the technical scheme, a feeding frame is arranged at the bottom of the outer barrel, the bottom of the inner barrel is rotatably arranged at the top of the feeding frame, and the end part of the spiral conveying rod is inserted into the feeding frame.

As a further improvement of the technical scheme, a transmission mechanism is arranged between the plurality of squeezing rollers and comprises a plurality of belt pulleys and a belt, the belt pulleys are fixed at the end parts of the squeezing rollers, the belt is meshed between the two belt pulleys, one end part of one belt pulley is connected with a transmission motor, and the transmission motor is fixed on the outer wall of the squeezing box.

As a further improvement of the technical scheme, a collecting drawer is inserted into the inner part of the squeezing box close to the bottom, and a filter screen is arranged in the inner cavity of the collecting drawer.

As a further improvement of the technical scheme, the surface of the collection drawer close to the bottom is communicated with a hose, the bottom of the inner cavity of the collection drawer is provided with a guide plate, and the guide plate is in a right-angled triangle shape in section.

As a further improvement of the technical scheme, the surface of the limiting frame is provided with a groove, the groove is matched with the diameter of the squeezing roller, and the top of the limiting frame is attached to the top of the inner cavity of the squeezing box.

As a further improvement of the technical scheme, the inner wall of the groove is provided with a scraping blade, and the end part of the scraping blade is attached to the outer wall of the squeezing roller.

As a further improvement of the technical scheme, sliding grooves are formed in the edges of the squeezing boxes, sliding plates are arranged at the bottoms of the limiting frames, and the sliding plates are arranged inside the sliding grooves in a sliding mode.

As a further improvement of the technical scheme, two symmetrical screw rods are rotatably arranged in the sliding groove, and the outer walls of the screw rods are in threaded fit connection with the surface of the sliding plate.

As a further improvement of the technical scheme, the end parts of the two screw rods are respectively provided with a first bevel gear, a second bevel gear is meshed between the first bevel gears, and the end part of the second bevel gear rotates to extend out of the interior of the squeezing box and is connected with a turntable.

Compared with the prior art, the invention has the beneficial effects that:

1. in this press type rape seed oil output equipment with prescreening structure, when the auger delivery pole conveys the rape seed, make the auger delivery pole drive the rape seed upset and filter, the casing that the rape seed was sieved out drops from a shell mouth along inner tube inside, and herein simultaneously, the inner tube drives the spiral plate and rotates, the rape seed after making the screening can be transmitted to inside the press box, not only realize the screening of rape seed before squeezing, and can independently convey inside the press box and squeeze after making the rape seed screening, alleviate intensity of labour, secondary pollution in the transportation has been avoided.

2. In this expression rape seed oil output equipment with prescreening structure, collect the steamer tray through setting up and drop and collect the inside collection steamer tray that collects of steamer tray in order to realize the rape seed disintegrating slag after squeezing, rape seed oil drops to collecting steamer tray inner chamber bottom through the filter screen, and the rape seed disintegrating slag stops at the filter screen top, when collecting the disintegrating slag, can pull out the collection steamer tray, conveniently collects the piece.

3. In this press type rape seed oil production facility with prescreening structure, realize the spacing to the rape seed through spacing, press the roller rotation inside the fluting, strike off the residue of pressing the roller outer wall through the fluting inner wall, avoid the residue along with the transmission, make the rape seed can't convey the inner wall position of squeezing the case, effectively avoid squeezing the incasement wall to adhere to impurity.

4. In this expression rape seed oil production facility with prescreening structure, adjust two and squeeze the clearance between the roller, make the tea-oil camellia seed effectual squeeze between two rollers, and when the rape seed residue blockked up, make two spacing framves part, drive and squeeze the gap increase between the roller, make the residue of jam can drop, the practicality is stronger.

Drawings

FIG. 1 is an assembly view showing the overall structure of embodiment 1 of the present invention;

FIG. 2 is a cut-away view of the outer cylindrical structure in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a mounting frame according to embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a feeding frame in embodiment 1 of the present invention;

FIG. 5 is a plan view of a press box structure according to example 1 of the present invention;

FIG. 6 is a schematic view of the press roll structure of example 1 of the present invention;

FIG. 7 is a cut-away view of the collection drawer structure of embodiment 1 of the present invention;

fig. 8 is a schematic structural view of a stop frame according to embodiment 2 of the present invention;

FIG. 9 is an exploded view of the chute structure of embodiment 3 of the present invention;

fig. 10 is a partially exploded view of a screw structure according to embodiment 3 of the present invention.

The various reference numbers in the figures mean:

100. a press box; 110. a collection drawer; 111. a hose; 112. a filter screen; 113. a baffle; 120. a limiting frame; 121. a press roll; 122. a transmission mechanism; 123. a drive motor; 124. grooving; 1240. scraping a blade; 125. a slide plate; 130. a chute; 131. a screw rod; 132. a first bevel gear; 133. a second bevel gear; 134. a turntable;

200. an outer cylinder; 210. an inner barrel; 211. a shell outlet; 212. a through hole; 213. a spiral plate; 214. a screw conveying rod; 215. a feeding frame; 220. a mounting frame; 221. a rotating electric machine; 222. a driving gear; 223. a driven gear; 224. an inner gear plate; 230. a pipeline; 231. a communication cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 7, the present embodiment provides a press type rapeseed oil production apparatus with a pre-screening structure, including a press box 100 and an outer cylinder 200 communicating with the press box 100, two symmetrical limiting frames 120 are disposed inside the press box 100, a plurality of press rolls 121 are rotatably disposed inside the limiting frames 120, and the limiting frames 120 are disposed to limit the positions of the press rolls 121, so that when rapeseed is thrown from the top of the press box 100 to the inside, the rapeseed is positioned between the two press rolls 121 to be pressed, so as to press out the rapeseed, and due to the plurality of press rolls 121, the rapeseed can be pressed for multiple times, thereby improving the production effect;

in order to collect the debris conveniently, the inside that press box 100 is close to the bottom is inserted and is equipped with collection steamer tray 110, collect steamer tray 110 inner chamber and be equipped with filter screen 112, consider that the inside rapeseed disintegrating slag after squeezing of press box 100 is difficult for taking out, and oil and rapeseed disintegrating slag can not effectively be separated, consequently, collect steamer tray 110 through setting up and drop in order to realize the rapeseed disintegrating slag after squeezing and collect inside the collection steamer tray 110, rapeseed oil drops to collection steamer tray 110 inner chamber bottom through filter screen 112, the rapeseed disintegrating slag stops at filter screen 112 top, when collecting the disintegrating slag, can pull out collection steamer tray 110, conveniently collect the debris.

In order to collect the rapeseed oil conveniently, the surface of the collection drawer 110 close to the bottom is communicated with a hose 111, the bottom of the inner cavity of the collection drawer 110 is provided with a guide plate 113, the guide plate 113 is in a shape of a right-angled triangle in cross section, and the upper surface of the guide plate 113 can be inclined, so that the rapeseed oil falling to the bottom of the inner cavity of the collection drawer 110 slides out of the end part of the hose 111 from the surface of the guide plate 113 along the inclination, and the rapeseed oil is convenient to collect.

An inner cylinder 210 is rotatably arranged inside the outer cylinder 200, a spiral conveying rod 214 is rotatably arranged inside the inner cylinder 210, two ends of the inner cylinder 210 rotatably extend out of the inner cylinder 200, the outer wall of the inner cylinder 210 close to the top is communicated with a shell outlet 211, rapeseeds can be conveyed upwards from the opening at the bottom of the inner cylinder 210 through the rotation of the spiral conveying rod 214, the rapeseeds are conveniently thrown into the interior of the squeezing box 100 subsequently, a plurality of through holes 212 are formed in the outer wall of the inner cylinder 210 at equal intervals, the through holes 212 are positioned inside the outer cylinder 200, a spiral plate 213 is arranged on the outer wall of the inner cylinder 210, the outer wall of the spiral plate 213 is attached to the inner wall of the outer cylinder 200, a pipeline 230 is communicated with the outer wall of the outer cylinder 200 close to the top, the end part of the pipeline 230 is communicated with a communicating cylinder 231, the communicating cylinder 231 is communicated with the top of the squeezing box 100, the rapeseeds can fall between the outer wall of the outer cylinder 200 and the inner cylinder 210 from the plurality of the through holes 212 when the rapeseeds are conveyed inside the inner cylinder 210, the rapeseeds are retained inside the inner cylinder 210, the rapeseed screening is realized, meanwhile, the spiral plate 213 rotates along with the inner cylinder 210, so that the screened rapeseeds are transmitted to the inside of the pipeline 230 along the spiral plate 213, and then fall to the inside of the squeezing box 100 along the inner wall of the pipeline 230 to be squeezed after being communicated with the inside of the cylinder 231;

the top of the outer cylinder 200 is provided with a mounting rack 220, the top of the mounting rack 220 is provided with a rotating motor 221, an output shaft of the rotating motor 221 penetrates through the mounting rack 220 to be connected with a driving gear 222, the end part of the driving gear 222 is fixedly connected with the end part of the spiral conveying rod 214, the outer wall of the driving gear 222 is meshed with a plurality of driven gears 223, an inner gear disc 224 is meshed among the outer walls of the driven gears 223, the end part of the inner gear disc 224 is fixed at the top of the inner cylinder 210, the rotating motor 221 can be powered on to work, the output shaft of the rotating motor 221 drives the driving gear 222 to rotate to drive the spiral conveying rod 214 to rotate, meanwhile, the driven gears 223 are meshed to rotate, then the inner cylinder 210 is meshed to rotate inside the outer cylinder 200 through the inner gear disc 224, when the spiral conveying rod 214 conveys rapeseeds, the rapeseeds are driven by the spiral conveying rod 214 to overturn for screening, and the screened rapeseeds fall down from a hull outlet 211 inside the inner cylinder 210, meanwhile, the inner cylinder 210 drives the spiral plate 213 to rotate, so that the screened rapeseeds can be transmitted to the inside of the press box 100, and the following effects are brought by the structure:

firstly, the inner cylinder 210 rotates to realize the screening of rapeseeds before squeezing and improve the quality of subsequent squeezing;

secondly, the shell and the rapeseeds are respectively conveyed through the rotation of the spiral conveying rod 214 and the spiral plate 213, so that the rapeseeds do not need to be transferred back and forth during screening, and the rapeseeds can be independently conveyed into the squeezing box 100 for squeezing after being screened, thereby reducing the labor intensity and avoiding the secondary pollution in the transferring process;

③, through the fixed intercommunication of a intercommunication section of thick bamboo 231 inside press box 100, can avoid the top feed inlet of press box 100 to open, lead to dust and impurity to get into, make a intercommunication section of thick bamboo 231 separation dust and impurity, improve the inside clean of press box 100, ensure the quality of rapeseed oil.

Wherein, the slope setting of the communicating cylinder 231 can ensure that the rapeseed oil that conveys from the inner tube 210 slips along the communicating cylinder 231 of slope, guarantees structural integrity.

In order to facilitate the delivery of the rapeseeds, the bottom of the outer cylinder 200 is provided with a feeding frame 215, the bottom of the inner cylinder 210 is rotatably arranged at the top of the feeding frame 215, the end part of the spiral conveying rod 214 is inserted into the feeding frame 215, and the rapeseeds can be put into the feeding frame 215, so that the rapeseeds in the feeding frame 215 are rotatably conveyed into the inner cylinder 210 along the end part of the spiral conveying rod 214, and the rapeseeds are more conveniently delivered.

In order to achieve high automation degree, a transmission mechanism 122 is arranged between the press rolls 121, the transmission mechanism 122 comprises a plurality of belt pulleys and belts, the belt pulleys are fixed at the ends of the press rolls 121, the belts are meshed between the two belt pulleys, one end of each belt pulley is connected with a transmission motor 123, the transmission motor 123 is fixed on the outer wall of the press box 100, the transmission motor 123 is powered on to work, the belt pulleys are driven by an output shaft of the transmission motor 123 to rotate, the press rolls 121 are driven to rotate through the belts, so that repeated pressing of rapeseeds is achieved, the pressing effect is improved, and the automation degree is high.

When the rapeseed press is used specifically, firstly, rapeseeds are driven to rotate by the driving gear 222 from the opening at the bottom of the inner cylinder 210 through the output shaft of the rotating motor 221, the spiral conveying rod 214 is driven to rotate, the rapeseeds are conveyed upwards through the spiral conveying rod 214, the rapeseeds drop to a position between the outer cylinder 200 and the outer wall of the inner cylinder 210 from the plurality of through holes 212, the shells of the rapeseeds are retained in the inner cylinder 210 to screen the rapeseeds, and at the same time, the rapeseeds are meshed to drive the driven gear 223 to rotate, then the rapeseeds are meshed to rotate through the inner gear disc 224, the inner cylinder 210 rotates in the outer cylinder 200, the screened rapeseeds are transmitted to the inside of the pipeline 230 along the spiral plate 213, then the rapeseeds drop to the inside the press box 100 along the inner wall of the pipeline 230, and then the rapeseeds are squeezed between the two rotating press rollers 121, and the rapeseeds are squeezed out.

Example 2

Considering that when the rapeseeds are squeezed from between the two squeezing rollers 121, the residues of the rapeseeds are easy to be transmitted to the inner wall of the squeezing box 100 along with the squeezing rollers 121, and a large amount of residues are attached to the inner wall, which is inconvenient to clean, therefore, in order to limit the residues of the rapeseeds, the embodiment is different from embodiment 1, and please refer to fig. 8, in which:

the surface of the limiting frame 120 is provided with a groove 124, the groove 124 is matched with the diameter of the pressing roll 121, the top of the limiting frame 120 is attached to the top of the inner cavity of the pressing box 100, when rapeseeds are put into the pressing box 100, the rapeseeds pass between the pressing rolls 121 between the two limiting frames 120, the pressing roll 121 rotates inside the groove 124 through the limiting frame 120 in order to limit the rapeseeds, residues on the outer wall of the pressing roll 121 are scraped through the inner wall of the groove 124, the residues are prevented from being transmitted along with the transmission, so that the rapeseeds cannot be transmitted to the position of the inner wall of the pressing box 100, and impurities attached to the inner wall of the pressing box 100 are effectively avoided.

In order to scrape off rapeseed residues attached to the outer wall of the press roll 121, the inner wall of the groove 124 is provided with the scraping blade 1240, and the end of the scraping blade 1240 is attached to the outer wall of the press roll 121, so that when the press roll 121 rotates, the end of the scraping blade 1240 can scrape along the outer wall of the press roll 121, and the rapeseed residues attached to the outer wall of the press roll 121 are scraped, thereby facilitating subsequent cleaning and further ensuring that the press roll 121 is prevented from being attached to the inner wall of the press box 100.

Example 3

Considering that the distance between the two press rolls 121 is inconvenient to adjust, not only is it inconvenient to adjust the pressing strength for the rapeseeds, but also when the rapeseeds are jammed between the press rolls 121, it is inconvenient to dredge, therefore, in order to adjust the distance between the press rolls 121, the present embodiment is different from embodiment 1 in that, please refer to fig. 9 to 10, wherein:

100 edges of squeezing box are equipped with spout 130, two spacing 120 bottoms are equipped with slide 125, slide 125 slides and establishes inside spout 130, conveniently adjust two spacing 120's distance, make slide 125 slide inside spout 130, thereby adjust two and squeeze the clearance between the roller 121, make the tea-oil camellia seed effectual squeeze between two rollers 121, and when the rapeseed residue blockked up, make two spacing 120 part, the gap increase between the roller 121 is squeezed in the drive, make the residue of jam can drop, the practicality is stronger.

In order to improve the moving stability of the limiting frame 120, two symmetrical screw rods 131 are rotatably arranged in the sliding groove 130, the outer walls of the screw rods 131 are in threaded fit with the surface of the sliding plate 125, and the two sliding plates 125 can respectively slide along the outer walls of the screw rods 131 in a threaded manner when the screw rods 131 rotate, so that the two limiting frames 120 are driven to gather inwards or diffuse outwards more conveniently, and the stability of the limiting frames 120 is improved.

In order to improve the convenience, the end parts of the two screw rods 131 are respectively provided with a first bevel gear 132, a second bevel gear 133 is meshed between the two first bevel gears 132, the end part of the second bevel gear 133 rotates to extend out of the interior of the squeezing box 100 and is connected with a rotating disc 134, the rotating disc 134 is held by the rotating disc 134 to rotate the second bevel gear 133, so that the two first bevel gears 132 are meshed to rotate, the screw rods 131 rotate more easily, and the convenience of adjusting the limiting frame 120 is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a press type rape seed oil production facility with prescreening structure, includes outer tube (200) of press box (100) and press box (100) intercommunication, its characterized in that: two symmetrical limiting frames (120) are arranged inside the squeezing box (100), and a plurality of squeezing rollers (121) are rotatably arranged inside the limiting frames (120);

an inner cylinder (210) is rotatably arranged in the outer cylinder (200), a spiral conveying rod (214) is rotatably arranged in the inner cylinder (210), two ends of the inner cylinder (210) rotatably extend out of the outer cylinder (200), the outer wall, close to the top, of the inner cylinder (210) is communicated with a shell outlet (211), a plurality of through holes (212) are formed in the outer wall of the inner cylinder (210) at equal intervals, the through holes (212) are located in the outer cylinder (200), a spiral plate (213) is arranged on the outer wall of the inner cylinder (210), the outer wall of the spiral plate (213) is attached to the inner wall of the outer cylinder (200), a pipeline (230) is communicated with the outer wall, close to the top, of the outer cylinder (200), a communicating cylinder (231) is communicated with the end of the pipeline (230), and the communicating cylinder (231) is communicated with the top of the squeezing box (100);

the urceolus (200) top is equipped with mounting bracket (220), mounting bracket (220) top is equipped with rotating electrical machines (221), rotating electrical machines (221) output shaft runs through mounting bracket (220) and is connected with driving gear (222), driving gear (222) tip fixed connection auger delivery pole (214) tip, driving gear (222) outer wall meshing has a plurality of driven gear (223), and is a plurality of the meshing has internal gear dish (224) between driven gear (223) outer wall, internal gear dish (224) end fixing be in inner tube (210) top.

2. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 1, wherein: the bottom of the outer cylinder (200) is provided with a feeding frame (215), the bottom of the inner cylinder (210) is rotatably arranged at the top of the feeding frame (215), and the end part of the spiral conveying rod (214) is inserted into the feeding frame (215).

3. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 1, wherein: and a transmission mechanism (122) is arranged between the press rolls (121), the transmission mechanism (122) comprises a plurality of belt pulleys and belts, the belt pulleys are fixed at the end parts of the press rolls (121), the belts are meshed between the two belt pulleys, one end part of one belt pulley is connected with a transmission motor (123), and the transmission motor (123) is fixed on the outer wall of the press box (100).

4. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 1, wherein: a collection drawer (110) is inserted into the inner part of the squeezing box (100) close to the bottom, and a filter screen (112) is arranged in the inner cavity of the collection drawer (110).

5. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 4, wherein: the surface of the collection drawer (110) close to the bottom is communicated with a hose (111), the bottom of the inner cavity of the collection drawer (110) is provided with a guide plate (113), and the guide plate (113) is in a right-angled triangle shape in section.

6. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 1, wherein: a groove (124) is formed in the surface of the limiting frame (120), the groove (124) is matched with the diameter of the squeezing roller (121), and the top of the limiting frame (120) is attached to the top of the inner cavity of the squeezing box (100).

7. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 6, wherein: and a scraper (1240) is arranged on the inner wall of the slot (124), and the end part of the scraper (1240) is jointed with the outer wall of the squeezing roller (121).

8. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 1, wherein: the edge of the squeezing box (100) is provided with a sliding groove (130), the bottoms of the two limiting frames (120) are provided with sliding plates (125), and the sliding plates (125) are arranged inside the sliding groove (130) in a sliding manner.

9. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 8, wherein: two symmetrical screw rods (131) are rotatably arranged in the sliding groove (130), and the outer walls of the screw rods (131) are in threaded fit connection with the surface of the sliding plate (125).

10. The press-type rapeseed oil-producing apparatus having a prescreening structure according to claim 9, wherein: two lead screw (131) tip all is equipped with first conical gear (132), two meshing has second conical gear (133) between first conical gear (132), second conical gear (133) tip rotates and stretches out inside press box (100), and is connected with carousel (134).