CN111771946B

CN111771946B - Casing twisting method and device

Info

Publication number: CN111771946B
Application number: CN202010729263.1A
Authority: CN
Inventors: 宋京涛; 张红娟
Original assignee: Qingdao Qilin Zhixin Automatic Control Technology Co ltd
Current assignee: Qingdao Qilin Zhixin Automatic Control Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-09-10
Anticipated expiration: 2040-07-27
Also published as: CN111771946A

Abstract

The invention discloses a method and a device for twisting casing, which belong to the technical field of casing and comprise the steps of fixing, grabbing and twisting, conveying, jacking and adjusting back. The method comprises the steps of grabbing a casing head for pulling the casing sleeving and shrinking pipe, taking the casing pulled out of the casing sleeving and shrinking pipe as a casing section, carrying out rotary twisting on the casing section, then pushing the twisted casing section back to a pipe cavity of the casing sleeving and shrinking pipe, restraining the twisted casing section by the pipe cavity, maintaining the twisting state of the casing section, and increasing the flow resistance of food materials, so that the food materials are prevented from leaking from a port of the casing, the method is favorable for maintaining the sleeving and shrinking state of the casing sleeving and shrinking pipe, and the method is convenient for mechanical filling.

Description

Casing twisting method and device

Technical Field

The invention belongs to the technical field of casings, and particularly relates to a casing twisting method and device.

Background

Casings are used for filling sausages and casing sausages, and are mainly classified into natural casings, collagen casings, polyvinylidene chloride (PVDC) casings, and the like. Because the natural casing has the defects of basically relying on manual operation, irregular thickness and the like, the collagen casing can make up the defects and is gradually and widely selected.

In order to facilitate mechanical enema, the produced collagen casing is usually shrunk into a tubular shape to form a sleeving and shrinking pipe, and the sleeving and shrinking pipe is sleeved on an enema rod to realize high-speed mechanical enema. However, in the process of sausage filling, the filling materials such as meat and the like are easy to be thrown out from the other end of the sausage casing, so that the filling materials are polluted and even wasted, and certain trouble is brought to the mechanical filling of sausage products.

The applicant has therefore conceived of realising a mechanized twisting of the shrink-fit casing, increasing the through-flow resistance in the twisted state of the casing, thus avoiding the problem of expulsion of the filling.

Disclosure of Invention

The invention aims to provide a method and a device for twisting casing, which can realize mechanical twisting of casing heads.

In order to solve the technical problems, the technical scheme of the invention is as follows: a method for twisting casing is designed, which is characterized in that: the method comprises the following steps:

(1) fixing: when the casing sleeving and shrinking pipe is conveyed to a first station by the conveying belt, the casing sleeving and shrinking pipe is fixed on the first station;

(2) grabbing and screwing: grasping a casing head of the casing sleeving and shrinking pipe fixed in the step (1), pulling the casing head out of the casing sleeving and shrinking pipe to form a casing section in a free state, clamping the casing section close to the casing unwinding pipe, and clamping the casing head to rotate and twist the casing section to form a twisting section;

(3) conveying: conveying the casing sleeving and shrinking pipe twisted in the step (2) to a second station and fixing the casing sleeving and shrinking pipe on the second station;

(4) jacking: and moving the first ejector rod towards the direction of the conveying belt, and ejecting the twisted section into the tube cavity of the enteric-coated casing shrinking tube on the second station by the first ejector rod.

And further, moving a second ejector rod positioned on the opposite side of the first ejector rod towards the conveying belt direction, wherein the second ejector rod extends into the tube cavity from the other end of the casing sleeve-contracting tube, and ejecting the twisted section back to the position close to the tube opening of the casing sleeve-contracting tube.

The invention also provides a sausage casing twisting device for realizing the method, which comprises a frame and is characterized in that: the sausage casing sleeving and shrinking device is characterized in that a conveying belt is arranged on the rack, the conveying belt conveys sausage casings and can fix the sausage casing sleeving and shrinking pipe in the front-back direction, a first workbench is arranged on one side of the conveying belt, a second workbench is arranged on the other side of the conveying belt, a grabbing and twisting mechanism and a jacking mechanism are sequentially arranged on the first workbench from front to back, and a fixing assembly is arranged on the second workbench and can fix the sausage casing sleeving and shrinking pipe on the conveying belt;

the grabbing and twisting mechanism comprises a first support and a second support, the first support is connected with a first push-pull mechanism, a grabbing needle is arranged in the first support, and the grabbing needle is connected with a first power rotating device; the second support is connected with a second push-pull mechanism, a first opening and closing clamp is arranged on the second support and connected with a second power rotating device, the first opening and closing clamp is provided with an opening and closing opening, a baffle is arranged on the inner side of the first opening and closing clamp and connected with a first lifting mechanism, a blocking hole is formed in the baffle, and a grabbing needle can penetrate through the opening and closing opening and enter the blocking hole;

the jacking mechanism comprises a third support, the third support is connected with a third push-pull mechanism, a first ejector rod is installed in the third support, and the first ejector rod can be inserted into a tube cavity of the casing sleeve pipe fixed by the fixing assembly and the conveying belt.

Further, a second opening and closing clamp is arranged between the baffle and the first opening and closing clamp.

Furthermore, first anchor clamps that open and shut include hollow structure's pivot, and second power rotary device is connected in the pivot, grabs the needle and wears to establish in the hollow chamber of pivot, installs the jack catch mechanism that can open and shut in the pivot.

Furthermore, the jaw mechanism comprises a jaw and a shaft sleeve, the shaft sleeve is sleeved on the rotating shaft, the inner end of the jaw is hinged to the connecting rod, the outer end of the jaw is hinged to the shaft sleeve, the other end of the connecting rod is hinged to the rotating shaft, the shaft sleeve is installed in the clamping sleeve through a bearing, and the clamping sleeve is connected with the fourth push-pull mechanism.

Furthermore, a seventh push-pull mechanism is mounted on the second workbench and connected with a seventh support, a push rod is mounted in the seventh support, and the push rod and the grabbing needle are arranged oppositely.

Furthermore, a fourth clamping opening is formed in the seventh support, the push rod is located in the fourth clamping opening, and a fourth locking piece is connected to the fourth clamping opening.

Further, the first support and the second support are slidably mounted on the first workbench.

Furthermore, install first slide rail on the first workstation, be equipped with first spout on the first support, first spout is assembled on first slide rail.

Furthermore, a second sliding groove is formed in the second support and assembled on the first sliding rail, and the second sliding groove is located on one side, close to the baffle, of the first sliding groove.

Furthermore, a first clamping opening is formed in the third support, the first ejector rod is installed in the first clamping opening, and the first clamping opening is connected with a first locking piece.

Furthermore, the conveying belt comprises a conveying base body, more than two V-shaped grooves are formed in the conveying base body, the more than two V-shaped grooves are arranged end to end, the V-shaped grooves are provided with a rear side wall and a front side wall, ejection grooves are formed in the front side wall, ejection parts are installed in the ejection grooves, the ejection parts push the casing sleeve to move along the rear side wall, and the ejection parts are connected with an ejection power device.

Further, the ejection slot is arranged near the bottom of the V-shaped slot.

Furthermore, the rear side wall is connected with a second slide rail, a first slide block is assembled on the second slide rail, and an ejection part is installed on the first slide block.

Furthermore, a third slide rail and a slide plate are arranged on the machine frame, a second slide block is arranged on the slide plate, the second slide block is assembled on the second slide rail, cranks are hinged on the slide plate, the cranks are hinged on the ejection plate of the V-shaped groove in a one-to-one correspondence manner, the slide plate is connected with an ejection power device, and the ejection power device is a sixth push-pull mechanism.

Furthermore, a stop lever is further installed in the third support, a fourth support is installed on the second workbench and connected with a fifth push-pull mechanism, a second ejector rod is installed on the fifth support, and the second ejector rod and the stop lever are coaxially arranged.

Furthermore, a second clamping opening is formed in the fourth support, the second ejector rod is installed in the second clamping opening, and a second locking member is connected to the second clamping opening; the third bracket is provided with a third clamping opening, the stop lever is arranged in the third clamping opening, and the third clamping opening is connected with a third locking member.

Furthermore, the fixed component is a pressing component or/and a blocking and leaning component, the pressing component can be pressed on the sausage casing sleeving and shrinking pipe on the conveying belt, and the blocking and leaning component is arranged opposite to the first ejector rod.

Furthermore, the compressing assembly comprises a fifth support arranged on the second workbench, the fifth support is connected with a second lifting mechanism, and the second lifting mechanism is connected with the pressing plate.

Furthermore, the first workbench and the second workbench are lifting platforms.

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

1. according to the invention, the casing head of the casing sleeving and shrinking pipe is grabbed and pulled, the casing pulled out of the casing sleeving and shrinking pipe is taken as the casing section, the casing section is rotated and twisted to form the twisted section, then the twisted section is pushed back to the pipe cavity of the casing sleeving and shrinking pipe, the twisted section is restrained by the pipe cavity, the twisted state is maintained, and the flow resistance of food materials is increased, so that the food materials are prevented from leaking from the port of the casing, the sleeving and shrinking state of the casing sleeving and shrinking pipe is favorably maintained, and the mechanical filling is facilitated.

2. Because it is flexible to grab the needle that screw mechanism drives through first push-and-pull mechanism, can get into the official cavity of casing shrinkage pipe end portion through keeping off the hole, the needle rotation is grabbed in first power rotary device drive for grab the needle and prick on the casing, thereby it takes out the casing head to retract, the first anchor clamps that open and shut of being convenient for are held, and it is twisted to drive the rotation by second power rotary device again, realizes the mechanized meticulous operation of casing twisting, improves work efficiency.

3. The second opening and closing clamp is arranged between the baffle and the first opening and closing clamp, so that the taken casing can be clamped close to the casing shrinking pipe, and the casing in the casing shrinking pipe is prevented from being continuously pulled under the action of the twisting force when the first opening and closing clamp rotates and twists the casing; meanwhile, the twisting force only acts on the taken sausage casing part, the twisting thread pitch can be encrypted, and the twisting effect is enhanced.

4. Through the setting of first slide rail, guaranteed to grab the flexible moving direction of needle and first opening and shutting anchor clamps, guaranteed the accurate cooperation between the two.

5. Because the conveying base body is provided with the V-shaped groove, the V-shaped groove is provided with the rear side wall and the front side wall, the ejection groove is arranged in the front side wall, the ejection part is arranged in the ejection groove and pushes the casing sleeve shrinkage pipe to move along the rear side wall, the temporary relative fixation of the casing sleeve shrinkage pipe can be realized by utilizing the V-shaped structure of the V-shaped groove, and the forward transmission of the casing sleeve shrinkage pipe can be realized by utilizing the ejection part, so that the transmission requirement of mechanical twisting of the casing is met.

6. Because the ejection groove is arranged close to the bottom of the V-shaped groove, the distance between the ejection part and the rear side wall can be reduced, so that the sausage casing sleeve-contracting pipe with a smaller outer pipe diameter can be suitable for, and the reliable transmission of the sausage casing sleeve-contracting pipe is ensured.

7. Because the ejection component is arranged in the ejection groove in a sliding manner, the friction resistance of the ejection component in the ejection groove can be reduced, and the action speed of the ejection component is improved.

8. The used ejection components can be the ejection plates with plate body structures or the deformation of the ejection plates, and the plate body structures are provided with a plurality of ejection rods which are distributed along the plate body arrangement, namely the ejection rods connected on the connecting plate can realize the push-pull operation along the ejection grooves.

9. Because the sliding structure between liftout plate and liftout groove chooses the structure that the slide rail joined in marriage the dress slider for use, the technology is mature, and the stable performance is reliable, the realization of being convenient for.

10. Because the number of the V-shaped grooves is set to be more than two, the V-shaped grooves are arranged and distributed end to end, and one V-shaped groove can be used as a station, so that multi-station flow operation is realized, and the production efficiency is improved.

11. Owing to set up the second slider on the slide, the second slider is joined in marriage and is adorned on the second slide rail, and articulated on the slide have the crank, and the crank one-to-one articulates on the liftout plate in "V" type groove, and telescopic machanism is connected to the second slide for a plurality of "V" type groove station paces are unanimous, realize the orderly operation of each work, avoid the chaotic phenomenon that the inconsistent brought of paces.

12. Because seted up first clamp mouth on the third support, first ejector pin is installed in first clamp mouth, connects first retaining member on the first clamp mouth, can be according to the length of different casing cover reducing pipes, the length of nimble first ejector pin of adjusting to be applicable to the casing cover reducing pipe of wider length range.

13. Because the third support is also provided with the stop lever, the second workbench is provided with the fourth support, the fourth support is connected with the fifth push-pull mechanism, the fourth support is provided with the second ejector rod, and the second ejector rod and the stop lever are coaxially arranged, so that under the blocking matching of the stop lever, the second ejector rod extends into the lumen of the casing sleeve shrinkage pipe to push the twisted casing head into the lumen close to the pipe head, and the twisted casing head is restored to a tight twisted state, thereby enhancing the sealing capability of the casing.

14. The first workbench and the second workbench are both provided with lifting workbenches, and can be suitable for casing sleeving and shrinking pipes with different pipe diameters, and the first ejector rod and the second ejector rod can accurately stretch into a pipe cavity of the casing sleeving and shrinking pipe.

15. The invention has simple structure and ingenious conception, realizes the relative fixation and the conveying of the casing sleeving and shrinking pipe, meets the mechanized twisting and conveying requirements of the casing, and is convenient for popularization and application in the industry.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a perspective view of the grasping and screwing mechanism;

FIG. 4 is a view from the direction B of FIG. 3;

FIG. 5 is a cross-sectional view C-C of FIG. 4;

FIG. 6 is a perspective view of the conveyor belt;

FIG. 7 is a view in the direction D of FIG. 6;

fig. 8 is a cross-sectional view E-E of fig. 7.

The labels in the figure are: 1. a frame; 2. a first table; 3. a second table; 4. a conveyor belt; 4-1, conveying a substrate; 4-2, a front side wall; 4-3, rear side wall; 4-4, ejecting the plate; 4-5, a first slide block; 4-6, a second slide rail; 4-7, a third slide rail; 4-8, a second slide block; 4-9, a sliding plate; 4-10, a sixth cylinder; 4-11, a crank; 5. a grabbing and screwing mechanism; 5-1, bearing; 5-2, a first bracket; 5-3, a second bracket; 5-4, a sixth bracket; 5-5, a first cylinder; 5-6, a first motor; 5-7, a second motor; 5-8, a second cylinder; 5-9, an eighth cylinder; 5-10 parts of baffle plate; 5-11, blocking holes; 5-12, finger cylinder; 5-13, claws; 5-14, cutting ferrule; 5-15, a fourth cylinder; 5-16, a first slide rail; 5-17, a first chute; 5-18, a second chute; 5-19, grasping a needle; 5-20 parts of rotating shaft; 5-21, connecting rod; 5-22, shaft sleeve; 6. a third cylinder; 7. a third support; 8. a first ejector rod; 9. a stop lever; 10. a fifth slide rail; 11. a fifth cylinder; 12. a second ejector rod; 13. a fourth bracket; 14; a fourth slide rail; 15. a fifth support; 16. a ninth cylinder; 17. a first platen; 18. a tenth cylinder; 19. a third press plate; 20. a second platen; 21. a sixth slide rail; 22. a seventh cylinder; 23. a seventh support; 24. a push rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

When the invention is in a use state, one end close to the ground is defined as a lower end or a bottom end, and the other end far away from the ground is correspondingly defined as an upper end or a top end; and referring to the conveying direction of the casing shrinking pipe from front to back, the end of the casing shrinking pipe entering the conveying belt is defined as the front end, and correspondingly, the end of the casing shrinking pipe leaving the conveying belt is defined as the back end.

The main idea of the invention is as follows: twisting of the casing is accomplished by:

(2) grabbing and screwing: grasping a casing head of the casing shrinkable tube fixed in the step (1), pulling the casing head out of the casing shrinkable tube to form a casing section, clamping the casing section close to the casing shrinkable tube, and clamping the casing head to rotate and twist the casing section to form a twisted section;

(5) And (3) callback: and (4) conveying the casing sleeving and shrinking pipe processed in the step (4) to the next station, fixing, moving a second ejector rod positioned on the opposite side of the first ejector rod towards the conveying belt, extending the second ejector rod into the pipe cavity from the other end of the casing sleeving and shrinking pipe, and ejecting the twisted section back to the position close to the pipe opening of the casing sleeving and shrinking pipe.

The method can be realized by the following specific means, as shown in fig. 1, a conveyer belt 4 is arranged on a frame 1, as shown in fig. 6 and 7, the conveyer belt 4 is provided with four V-shaped grooves which are arranged and distributed end to end on the top wall of a conveying base body 4-1, an ejection groove is arranged in the front side wall 4-2 of each V-shaped groove, and the ejection groove is arranged close to the bottom of the V-shaped groove. The ejection groove is provided with an ejection plate 4-4. As shown in figure 8, a first sliding block 4-5 is arranged on the ejection plate 4-4, the rear side wall 4-3 of each V-shaped groove is connected with a second sliding rail 4-6, and the first sliding block 4-5 is assembled on the second sliding rail 4-6. A third slide rail 4-7 is fixedly arranged on the machine frame 1, a second slide block 4-8 is arranged on a slide plate 4-9, the second slide block 4-8 is assembled on the third slide rail 4-7, four cranks 4-11 are hinged on the slide plate 4-9, the cranks 4-11 are correspondingly hinged on the ejection plate 4-4 of the V-shaped groove one by one, and the slide plate 4-9 is connected with a sixth air cylinder 4-10. Therefore, the sixth air cylinder 4-10 drives the ejector plate 4-4 to move along the direction of the rear side wall 4-3, so as to push the casing sleeve to move along the rear side wall 4-3. A first workbench 2 is arranged on one side of a conveying belt 4, a second workbench 3 is arranged on the other side of the conveying belt, and a grabbing and twisting mechanism 5 and a jacking mechanism are sequentially arranged on the first workbench 2 from front to back.

As shown in fig. 3, a first bracket 5-2 and a second bracket 5-3 are arranged in the grabbing and screwing mechanism 5, the first bracket 5-2 is connected with a first air cylinder 5-5, a grabbing needle 5-19 is arranged in the first bracket 5-2, and the grabbing needle 5-19 is connected with a first motor 5-6; the second support 5-3 is connected with a second cylinder 5-8, a rotating shaft 5-20 of a hollow structure is arranged on the second support 5-3, the rotating shaft 5-20 is connected with a second motor 5-7, as shown in fig. 5, a grabbing needle 5-19 penetrates through a hollow cavity of the rotating shaft 5-20, a shaft sleeve 5-22 is sleeved on the rotating shaft 5-20, three clamping jaws 5-13 distributed along the circumferential direction of the shaft sleeve 5-22 are connected on the shaft sleeve 5-22, the inner ends of the clamping jaws 5-13 are hinged to connecting rods 5-21, the outer ends of the clamping jaws 5-13 are hinged to the shaft sleeve 5-22, the other ends of the connecting rods 5-21 are hinged to the rotating shaft 5-20, the shaft sleeve 5-22 is installed in a clamping sleeve 5-14 through a bearing 5-1, and the clamping sleeve 5-14 is connected with a fourth cylinder 5-15. The first workbench 2 is further provided with a sixth support 5-4, the sixth support 5-4 is provided with an eighth cylinder 5-9, an expansion link of the eighth cylinder 5-9 is connected with a baffle 5-10, so that the baffle 5-10 can lift along the height direction of the sixth support 5-4, the baffle 5-10 is positioned on one side, close to the conveying belt 4, of the clamping jaw 5-13, the baffle 5-10 is provided with a baffle hole 5-11, and the grabbing needle 5-19 can penetrate through an opening and closing port of the clamping jaw 5-13 to enter the baffle hole 5-11. A finger cylinder 5-12 is also arranged between the baffle 5-10 and the claw 5-13. As shown in fig. 4, a first slide rail 5-16 is mounted on the first workbench 2, a first sliding groove 5-17 is arranged on the first bracket 5-2, and the first sliding groove 5-17 is assembled on the first slide rail 5-16; the second bracket 5-3 is provided with a second sliding chute 5-18, the second sliding chute 5-18 is assembled on the first sliding rail 5-16, and the second sliding chute 5-18 is positioned at one end of the first sliding chute 5-17 close to the baffle 5-10. A sixth sliding rail 21 is further mounted on the second workbench 3, a seventh support 23 is assembled on the sixth sliding rail 21, the seventh support 23 is connected with a seventh cylinder 22, a fourth clamping opening is formed in the seventh support 23, a push rod 24 is arranged in the fourth clamping opening, the push rod 24 and the grabbing needles 5-19 are oppositely arranged, and a fourth locking member is connected to the fourth clamping opening.

Set up the fourth slide rail 14 of installing on first workstation 2 in the mechanism advances in the top, the third support 7 of assembly on the fourth slide rail 14, and third cylinder 6 is connected to third support 7, has seted up first clamp mouth in the third support 7, sets up first ejector pin 8 in the first clamp mouth, connects first retaining member on the first clamp mouth. The second workbench 3 is provided with a fifth support 15, the fifth support 15 is connected with a ninth cylinder 16 and a tenth cylinder 18, the ninth cylinder 16 is connected with a first pressing plate 17, and after the casing sleeve pipe is fixed by the first pressing plate 17, the grabbing needles 5-19 can extend into the pipe cavity of the casing sleeve pipe. The tenth air cylinder 18 is connected with the second pressing plate 20 and the third pressing plate 19, and after the casing sleeving and shrinking pipe is fixed by the second pressing plate 20, the first ejector rod 8 can be inserted into the pipe cavity of the casing sleeving and shrinking pipe; after the casing shrinking pipe is fixed by the third pressing plate 19, the second ejector rod 12 can be inserted into the pipe cavity of the casing shrinking pipe.

In order to recover the tight kinking state of the twisted sausage casing head in the sausage casing shrinking tube cavity, a third clamping opening is formed in a third support 7, a stop lever 9 is installed in the third clamping opening, the stop lever 9 is positioned at the rear side of the first ejector rod 8, and a third locking piece is connected to the third clamping opening; the fifth sliding rail 10 is arranged on the second workbench 3, the fourth support 13 is assembled on the fifth sliding rail 10, the fourth support 13 is connected with the fifth cylinder 11, the fourth support 13 is provided with a second clamping opening, a second ejector rod 12 is arranged in the second clamping opening, the second ejector rod 12 and the stop rod 9 are coaxially arranged, and a second locking member is connected on the second clamping opening.

In order to make the jacking mechanism suitable for casing shrinkable tubes with different pipe diameters and make the first ejector rod 8 and the second ejector rod 12 accurately extend into the pipe openings of the casing shrinkable tubes, the invention also designs the first workbench 2 and the second workbench 3 into a lifting platform form, and the first workbench 2 and the second workbench 3 can be independently connected with respective lifting mechanisms and can also share the same lifting mechanism. The specific lifting mode can be that lifting adjustment is carried out through rotating the lead screw, also can be that lifting adjustment is carried out through the mode of locking in the guide rail, all are ripe prior art, as long as here can carry out lifting adjustment to first workstation 2 and second workstation 3 can, do not do specific requirements to its structure, so no longer give unnecessary detail.

The working process of the invention is as follows:

when the sixth cylinder 4-10 is in a retraction state, the ejection plate 4-4 is positioned in the ejection groove, and the casing shrinkage pipe is clamped at the bottom of the V-shaped groove under the action of gravity, so that the casing shrinkage pipe is relatively fixed in the front and rear positions. The eighth cylinder 5-9 drives the baffle 5-10 to fall, then the seventh cylinder 22 drives the push rod 24 to push the casing shrinking pipe to enable the casing shrinking pipe to lean against the baffle 5-10 only, and the ninth cylinder 16 drives the first pressing plate 17 to fall and be in compression joint with the casing shrinking pipe, so that the casing shrinking pipe is fixed on the first station. The first air cylinder 5-5 drives the grabbing needle 5-19 to move towards the direction of the conveying belt 4, the grabbing needle 5-19 penetrates through the opening and closing opening of the clamping jaw 5-13 to enter the pipe cavity at the end part of the casing sleeve shrinking pipe, then the first motor 5-6 is started to drive the grabbing needle 5-19 to rotate, so that the grabbing needle 5-19 pricks the casing head, the first air cylinder 5-5 retracts to pull the casing head out of the casing sleeve shrinking pipe and pull the casing head into the opening and closing opening of the clamping jaw 5-13, the fourth air cylinder 5-15 acts to drive the clamping jaw 5-14 to move towards the conveying belt 4 side, so that the clamping jaw 5-13 is closed to clamp the casing head, and the second air cylinder 5-8 retracts to pull the casing head out for a certain distance to form a casing section. Then, the finger cylinder 5-12 is closed, the sausage casing section is clamped by the sausage casing sleeving and shrinking pipe, and the second motor 5-7 is started to drive the clamping jaws 5-13 to rotate to twist the sausage casing. And after the casing is twisted, the free state of the casing sleeve shrinkage pipe is recovered.

At the moment, the sixth air cylinder 4-10 is controlled to act, the sliding plate 4-9 is driven to move by the second sliding block 4-8, then the ejector plate 4-4 is driven by the crank 4-11 to extend out of the ejector groove and move obliquely upwards along the rear side wall 4-3, so that the casing sleeve shrinkage pipe is pushed to move obliquely upwards along the rear side wall 4-3, the casing sleeve shrinkage pipe is ejected out of the V-shaped groove and enters the next V-shaped groove, when the casing sleeve shrinkage pipe reaches the V-shaped groove at the position corresponding to the first ejector rod 8, the tenth air cylinder 18 drives the second pressing plate 20 to fall down and be pressed on the top wall of the casing sleeve, so that the casing sleeve shrinkage pipe is fixed, the third air cylinder 6 pushes the third support 7 to move towards the conveying base body 4-1 direction, so that the first ejector rod 8 pushes the head of the casing exposed outside into the pipe cavity of the casing sleeve shrinkage pipe, the tenth cylinder 18 and the third cylinder 6 are returned. At the moment, the sixth air cylinder 4-10 acts to push the ejection plate 4-4 to extend out of the ejection groove, so as to drive the casing sleeve shrinkage pipe to move obliquely upwards along the rear side wall 4-3, and the casing sleeve shrinkage pipe is ejected out of the V-shaped groove to enter the next V-shaped groove. The tenth cylinder 18 drives the second pressing plate 20 again to fix the casing shrinking pipe, the third cylinder 6 drives the stop lever 9 to move towards the conveying basal body 4-1, the fifth cylinder 11 also drives the second ejector rod 12 to move towards the conveying basal body 4-1, so that the blocking rod 9 is blocked on the pipe orifice at one end of the casing shrinking pipe, the second ejector rod 12 extends into the pipe cavity from the other end of the casing shrinking pipe, the twisted sausage casing head is pushed back to a fixed position away from the pipe opening, the application of the sausage casing sleeve pipe is not influenced when mechanical sausage is performed, the twisted sausage casing head can be in a retraction state, therefore, the screw pitch of twisting is reduced, the sausage casing head is not easy to loosen, the sealing capability of the sausage casing head is improved, the third cylinder 6, the fifth cylinder 11 and the tenth cylinder 18 return, the sixth cylinder 4-10 acts again, and the sausage casing sleeving and shrinking pipe is conveyed to the next station to finish twisting of the sausage casing.

In the above embodiment, more than two ejector rods can be arranged on the connecting plate as the ejector components, that is, a deformation structure of the ejector plates 4-4 can also be adopted, so that the integral movement of the ejector rods can be realized, and the casing sleeve shrinkage pipe can be ejected out of the V-shaped groove. Of course, the ejection components in each V-shaped groove can be respectively connected with a power source, and the same power source can only synchronously drive the ejection plates 4-4 of each V-shaped groove to uniformly act through the structure of the hinged cranks 4-11 on the sliding plates 4-9, so that the working pace of each V-shaped groove is ensured to be consistent. Except that the cylinder drives the pressing plate to serve as a fixing component, the blocking and leaning components which are arranged oppositely can be adopted, and the blocking and leaning components can be baffles or blocking rods 9 which are similar to the structure.

Of course, besides the above-mentioned "V" shaped groove is arranged on the conveying base 4-1 as the conveying belt 4, the conveying belt 4 may be provided with two baffle plates placed in front and back, the casing sleeve-contracting pipe is positioned between the two baffle plates, the conveying belt 4 is in a stop state, the casing sleeve-contracting pipe can be relatively fixed on the conveying belt 4 in front and back, at this time, the casing sleeve-contracting pipe can be completely fixed by matching the pressing component, and then the bottom wall of the pressing plate is provided with the "V" shaped groove structure, so that the stable fixation of the casing sleeve-contracting pipe can be realized. The locking piece can be a screw rod, and can also be an assembly form of the screw rod and the jaw sleeve.

In the above embodiments, the cylinder is used as the push-pull mechanism, and a hydraulic cylinder and a manner of converting rotation into movement by a lead screw can be adopted, as long as the telescopic push-pull action can be realized; the motor is selected as a power rotating device, and wind energy, heat energy, water flow potential energy and the like can be converted into rotating kinetic energy; the first opening and closing clamp can adopt a claw mechanism, a finger cylinder 5-12 mode and the like, and can also be a parallel opening and closing clamp, and the claw mechanism can also adopt a mature three-gripping chuck structure in the prior art, in particular, refer to Chinese patent applications 201910723716.7 and 201710558147.6, as long as the clamping can be realized through the opening and closing action, and the second opening and closing clamp is also the same and is not limited to the finger cylinder 5-12 mode. In a similar way, a structure except the air cylinder can be selected as the lifting mechanism.

The grasping needles 5-19 can be of a structure similar to a twist drill with pricks on the outer wall, and the sausage casing is pricked by utilizing a concave-convex structure without other specific structural requirements.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A method for twisting casing is characterized in that: the method comprises the following steps:

2. A method of wringing casings as claimed in claim 1, wherein: the method also comprises a callback step: and moving a second ejector rod positioned on the opposite side of the first ejector rod towards the conveying belt direction, wherein the second ejector rod extends into the tube cavity from the other end of the casing sleeve shrinking tube and pushes the twisted section back to the position close to the tube opening of the casing sleeve shrinking tube.

3. The utility model provides a casing twist device, includes the frame, its characterized in that: the sausage casing sleeving and shrinking device is characterized in that a conveying belt is arranged on the rack, the conveying belt conveys sausage casings and can fix the sausage casing sleeving and shrinking pipe in the front-back direction, a first workbench is arranged on one side of the conveying belt, a second workbench is arranged on the other side of the conveying belt, a grabbing and twisting mechanism and a jacking mechanism are sequentially arranged on the first workbench from front to back, and a fixing assembly is arranged on the second workbench and can fix the sausage casing sleeving and shrinking pipe on the conveying belt;

the grabbing and twisting mechanism comprises a first support and a second support, the first support is connected with a first push-pull mechanism, a grabbing needle is arranged in the first support, and the grabbing needle is connected with a first power rotating device; the second support is connected with a second push-pull mechanism, a first opening and closing clamp is arranged on the second support and connected with a second power rotating device, the first opening and closing clamp is provided with an opening and closing opening, a baffle is arranged on the inner side of the first opening and closing clamp and connected with a lifting mechanism, a blocking hole is formed in the baffle, and a grabbing needle can penetrate through the opening and closing opening and enter the blocking hole;

the jacking mechanism comprises a third support, the third support is connected with a third push-pull mechanism, a first ejector rod is installed in the third support, and the first ejector rod can be inserted into a pipe cavity of the casing sleeve pipe fixed by the fixing assembly and the conveying belt.

4. A casing twisting device as claimed in claim 3 wherein: and a second opening and closing clamp is arranged between the baffle and the first opening and closing clamp.

5. A casing twisting device as claimed in claim 3 wherein: the first opening and closing clamp comprises a rotating shaft of a hollow structure, the rotating shaft is connected with a second power rotating device, the grabbing needle is arranged in a hollow cavity of the rotating shaft in a penetrating mode, and a claw mechanism capable of opening and closing is installed on the rotating shaft.

6. A casing twisting device as claimed in claim 5 wherein: the clamping jaw mechanism comprises a clamping jaw and a shaft sleeve, the shaft sleeve is sleeved on the rotating shaft, the inner end of the clamping jaw is hinged to the connecting rod, the outer end of the clamping jaw is hinged to the shaft sleeve, the other end of the connecting rod is hinged to the rotating shaft, the shaft sleeve is installed in the clamping sleeve through a bearing, and the clamping sleeve is connected with the fourth push-pull mechanism.

7. A casing twisting device according to any of claims 3 to 6 wherein: a first clamping opening is formed in the third support, the first ejector rod is installed in the first clamping opening, and the first clamping opening is connected with a first locking piece.

8. A casing twisting device according to any of claims 3 to 6 wherein: the conveying belt comprises a conveying base body, wherein more than two V-shaped grooves are formed in the conveying base body, the more than two V-shaped grooves are arranged end to end, the V-shaped grooves are provided with a rear side wall and a front side wall, ejection grooves are formed in the front side wall, ejection parts are installed in the ejection grooves, the ejection parts push the casing sleeve to move along the rear side wall, and the ejection parts are connected with an ejection power device.

9. A casing twisting device according to any of claims 3 to 6 wherein: and a stop lever is further installed in the third support, a fourth support is installed on the second workbench and connected with a fifth push-pull mechanism, and a second ejector rod is installed on the fourth support and is coaxial with the stop lever.

10. A casing twisting device as claimed in claim 9 wherein: a second clamping opening is formed in the fourth support, the second ejector rod is installed in the second clamping opening, and a second locking piece is connected to the second clamping opening; the third bracket is provided with a third clamping opening, the stop lever is arranged in the third clamping opening, and the third clamping opening is connected with a third locking member.