Screwing mechanism for processing sphere-like peaches

Abstract

The utility model discloses a screwing mechanism for processing sphere-like peaches. The screwing mechanism comprises a left clamping arm and a right clamping arm, the same ends of the left clamping arm and the right clamping arm are hinged, and the other ends are respectively provided with a screwing mechanism; the left clamping arm and the right clamping arm are driven by the driving mechanism to drive the screwing mechanism to swing in the direction close to the two sides of a peach or away from the two sides of the peach so as to clamp or loosen the peach. An air bag is arranged at the end, facing the peach direction, of each screwing mechanism, and the air bags are driven by the air supply mechanism to achieve inflation wrapping or deflation separation on the two sides of the peach. The left clamping arm and the right clamping arm are respectively provided with a linkage mechanism for driving the screwing mechanism to axially rotate so as to screw the two sides of a peach. Peach pulp can be sectioned and denucleated in a screwing mode instead of a traditional cutting or manual denucleating mode, and the condition of the pulp is better. The air bag is inflated and deflated through the air pump and can be fully and compactly attached to the outer surface of a peach, so that the screwing acting force is distributed more uniformly, and the situation that pulp is abraded due to the fact that the local stress of the pulp is too large is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fruit can processing equipment, and particularly relates to a screwing mechanism for processing spherical peaches. Background Art

[0002] Peaches are one of the raw materials for processing fruit cans, and there are varieties such as spherical yellow peaches, hairy peaches or nectarines. Taking yellow peaches as an example, they need to be cut in half during processing. In the prior art, there are many cutting and splitting equipment for spherical peaches. After the peaches are cut and pitted, subsequent processing can be carried out.

[0003] After retrieval, the technical content of cutting yellow peaches into slices is disclosed in the document of Chinese Patent Literature CN215241166U, which records that when the hydraulic rod starts, it pushes the partition plate to press down, and the yellow peaches are quickly cut into slices by the blade. This method will cut the peach pit into slices together. Since the hardness of the peach pit is much greater than that of the pulp, the peach pit will cause compression on the pulp below, resulting in the defect of pulp compression deformation and affecting the appearance of the product.

[0004] In another document of Chinese Patent Literature CN217136744U, the technical content of cutting and pitting yellow peaches is disclosed, which records that the air cylinder pushes the fixed plate to drive the cutting blade and the cross blade to cut the yellow peaches into slices, and the cross blade can push out the peach pit, so as to achieve the purpose of cutting and pitting. However, from the disclosed text content and drawings, the process of cutting and removing the pit cannot be clearly and completely determined, especially the positional relationship between the cross blade and the cutting blade cannot be accurately judged. Moreover, the pushing method of the air cylinder is also likely to cause excessive extrusion deformation of the pulp, and there are also certain deficiencies.

[0005] In addition, the key to production and processing is how to completely remove the peach pit on the premise of retaining as much pulp as possible without damaging it. Using relatively simple and rough methods such as pushing or pressing for pit removal operations will inevitably damage the pulp. In another document of Chinese Patent Literature CN216821641U, the technical content of cutting and pitting yellow peaches is disclosed, which records that the yellow peaches are clamped and rotated by a soft protection pad, and the pit removal component is inserted into the inside of the yellow peaches from the gap left by cutting to remove the pit. It adopts a completely different pit removal method and has certain beneficial effects.

[0006] However, the shape of a peach is not an absolute sphere. Although a soft protective pad adapted to the peach can form a soft contact with the outer surface of the peach, it is only a partial soft contact and cannot achieve a full-wrap soft contact. It is not much different from the traditional hard-contact pressing and clamping method. That is to say, affected by the irregular shape of the peach, there will be a situation where some parts of the outer surface of the peach are closely attached while other parts are not. During the screwing process, it will cause the phenomenon of excessive local screwing and wear of the pulp. There will also be a phenomenon of uneven force during the screwing process, resulting in the deviation or slipping of the peach, which will ultimately affect the pit-removing effect and the product appearance. Moreover, the maturity and size of peaches are not consistent. For peaches with better maturity, the pulp is softer, so excessive pressure cannot be applied otherwise the pulp will be squeezed and damaged. For smaller peaches, different-sized jigs need to be disassembled and replaced, which makes the replacement and adjustment of relevant jig components and the debugging operation of the equipment cumbersome and inconvenient, restricting the work efficiency. Summary of the Invention

[0007] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, and provide a screwing mechanism for processing spherical peaches, which can completely fit and wrap the outer surface of the peach, and use the screwing method to separate the peach flesh from the peach pit, making the peach flesh more intact and the product appearance better.

[0008] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0009] A screwing mechanism for processing spherical peaches includes a left clamping arm and a right clamping arm;

[0010] Its characteristics are:

[0011] The same ends of the left clamping arm and the right clamping arm are hinged to each other, and the other ends are respectively provided with screwing mechanisms arranged oppositely;

[0012] The left clamping arm and the right clamping arm drive the screwing mechanisms to swing towards or away from both sides of the peach under the drive of a driving mechanism to realize the clamping or loosening of the peach;

[0013] One end of each screwing mechanism facing the peach is provided with an airbag, and the airbag is inflated and wrapped or deflated and separated from both sides of the peach under the drive of an air supply mechanism;

[0014] The left clamping arm and the right clamping arm are respectively provided with a linkage mechanism for driving the axial rotation of the screwing mechanism to realize the screwing of both sides of the peach.

[0015] As a further technical solution of the utility model, the screwing mechanism includes a rotating tube, and the end of the rotating tube facing the peach is provided with an airbag seat for socketing the airbag, and the airbag seat is provided with an airway passing through the airbag and facing the direction of the airbag, and the airbag seat rotates synchronously with the rotating tube through a connecting disk; the rotating tube is also provided with a gear that drives its axial rotation.

[0016] As a further technical solution of the utility model, a long rod is movably sleeved inside the rotating tube, one end of the long rod passes through the airbag and is close to the peach, and the other end extends out of the rotating tube and is provided with a touch block. The long rod performs axial reciprocating stroke motion in the rotating tube through an elastic component.

[0017] As a further technical solution of the utility model, the touch block and the long rod are threadedly connected to each other.

[0018] As a further technical solution of the utility model, a shell for limiting and wrapping the airbag is provided on the outer periphery of the airbag seat.

[0019] As a further technical solution of the utility model, a rib is provided on the side of the air bag facing the peach.

[0020] As a further technical solution of the utility model, the driving mechanism includes a left connecting rod hinged on the left clamping arm and a right connecting rod hinged on the right clamping arm. The left connecting rod and the right connecting rod are respectively hinged to the two ends of the driving arm, and the driving arm drives the left connecting rod and the right connecting rod at both ends to swing in the opposite direction under the transmission of the power shaft.

[0021] As a further technical solution of the utility model, the linkage mechanism includes a swing arm, both ends of the swing arm are movably connected to the transmission rod through support arms respectively, and the transmission teeth provided on the transmission rod are meshed with the gear.

[0022] As a further technical solution of the utility model, the swing arm is coaxially hinged with the left clamp arm and the right clamp arm. The swing arm is transmission-connected to the power shaft via a connecting rod and realizes reverse swing at both ends with the hinge as the center.

[0023] As a further technical solution of the utility model, the air supply mechanism is an air pump connected to the airway through a pipeline.

[0024] After adopting the above technical solution, the technical effects that the utility model can produce are:

[0025] The peach flesh can be separated and pitted by twisting, rather than the traditional cutting or manual pitting method. The separation between the flesh and the pit is more natural, the appearance of the flesh is more intact, and the added value of the product is increased.

[0026] The airbag is inflated and deflated through an air pump, and can be fully and tightly attached to the outer surface of the peach, making the force distribution of the screwing more uniform, and preventing the pulp from being worn or damaged due to excessive local stress.

[0027] Importantly, it eliminates the inconvenience of workers repeatedly disassembling and replacing the soft protective pad according to the size of the peach. As long as it is within the range where the airbag is inflated, it can be used comprehensively, greatly simplifying the operation process, having a wider adaptability to the size of the peach, and significantly improving work efficiency. Brief Description of the Drawings

[0028] Appendix Figure 1 is a schematic three-dimensional structure of the present utility model Figure 1 ;

[0029] Appendix Figure 2 is the schematic structural diagram of the clamping state of Appendix Figure 1 ;

[0030] Appendix Figure 3 is a schematic three-dimensional structure of the present utility model Figure 2 ;

[0031] Appendix Figure 4 is the schematic structural diagram of the clamping state of Appendix Figure 3 ;

[0032] Appendix Figure 5 is a schematic three-dimensional structure of the screwing mechanism in the present utility model Figure 1 ;

[0033] Appendix Figure 6 is a schematic three-dimensional structure of the screwing mechanism in the present utility model Figure 2 ;

[0034] Appendix Figure 7 is the schematic main cross-sectional view of the screwing mechanism in the present utility model

[0035] Appendix Figure 8 is a schematic three-dimensional structure of the airbag seat in the present utility model Figure 1 ;

[0036] Appendix Figure 9 is a schematic three-dimensional structure of the airbag seat in the present utility model Figure 2 ;

[0037] Appendix Figure 10 is a schematic three-dimensional structure of the airbag in the present utility model Figure 1 ;

[0038] Appendix Figure 11 is a schematic three-dimensional structure of the airbag in the present utility model Figure 2 ;

[0039] Appendix Figure 12It is the main view sectional view of the structure of the airbag in the present utility model;

[0040] Appendix Figure 13 It is the three-dimensional structure schematic diagram of the connecting plate in the present utility model Figure 1 ;

[0041] Appendix Figure 14 It is the three-dimensional structure schematic diagram of the connecting plate in the present utility model Figure 2 ;

[0042] Appendix Figure 15 It is the side view of the structure of the transmission rod in the present utility model.

[0043] In the figure:

[0044] 101 - Left clamping arm, 102 - Right clamping arm, 103 - Hinge shaft;

[0045] 200 - Screwing mechanism, 201 - Rotating tube, 202 - Airbag seat, 2021 - Air passage, 203 - Connecting plate, 2031 - Air hole, 2032 - Fixing hole, 204 - Airbag, 2041 - Rib, 205 - Long rod, 2051 - Elastic component, 206 - Gear, 207 - Touching block, 208 - Outer shell, 209 - Touching head;

[0046] 301 - Driving arm, 302 - Left connecting rod, 303 - Right connecting rod;

[0047] 400 - Swing arm, 401 - Transmission rod, 4011 - Transmission tooth, 402 - Rod sleeve, 403 - Support arm, 404 - Connecting rod, 405 - Power shaft;

[0048] 5 - Peach. Specific implementation manner

[0049] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with Appendix Figure 1 to Appendix Figure 15 It is obvious that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0050] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations. Example 1

[0051] Refer to the attached Figure 1 to the attached Figure 15 For a screwing mechanism for processing spherical peaches of the present utility model, it includes left clamping arms 101 and right clamping arms 102 arranged symmetrically. The same ends of the two are jointly hinged to a hinge shaft to realize coaxial reverse separation or opposite approach. The other ends are respectively provided with screwing mechanisms 200 arranged oppositely, which are used to clamp the two sides of the peach oppositely and use the rotational action to twist and separate the pulp from the peach pit. It is completely different from the traditional cutting method or manual pit-digging method, can maximize the retention and preservation of the pulp, the meat-pit separation is more natural, without damage, and the appearance is better. That is to say, the left clamping arm 101 and the right clamping arm 102 swing around the hinge point under the drive of the drive mechanism, driving the screwing mechanism 200 to swing towards or away from the two sides of the peach 5 to realize the clamping or loosening of the peach 5.

[0052] The clamping of the peach 5 is a soft contact, that is, one end of each screwing mechanism 200 facing the peach 5 is provided with an airbag 204, and the airbag 204 is inflated and wrapped or deflated and separated from the two sides of the peach 5 under the drive of the air supply mechanism. When the oppositely arranged airbags 204 are inflated and bulged, it can form a symmetrically fitting clamping of the peach 5. On the contrary, when deflated, it does not contact the two sides of the peach 5 and there is no actual frictional force with the peach.

[0053] The way of using the airbag 204 to fit and contact the peach 5 is completely different from the way of using the traditional soft protection pad to fit and contact. The biggest advantage of the airbag 204 is that it can completely fit on the surface of the peach and is not affected by the shape of the peach. Moreover, the airbag 204 is more likely to change according to the shape of the peach and is completely unaffected by the peach shape. The traditional soft protection pad with a fixed shape cannot achieve the effect of completely fitting the outer surface of the peach, especially when rotating, it will cause obvious wear to the pulp. In addition, for peaches of different sizes and shapes, it is necessary to repeatedly disassemble and replace the soft protection pad, which is not practical.

[0054] In addition, the left clamping arm 101 and the right clamping arm 102 are respectively provided with a linkage mechanism for driving the axial rotation of the screwing mechanism 200 to realize the screwing of the two sides of the peach 5. When screwing, the peach has been cut with a circular knife mark by a cutter. This knife mark does not cut into the peach pit, only cuts the peach pulp part. The peach pit is fixed by the cutter clamp, and the peach pulp is clamped by the airbag 204. When screwing, the peach pit and the peach pulp rotate relatively, that is, the peach pit does not move and the peach pulp rotates to realize the separation of the meat and the pit.

[0055] The relative rotation mentioned above is for the pulp and the peach pit. Specifically, it can be the same-direction rotation of the two screwing mechanisms, or the reverse rotation, or the differential rotation. As long as the relative rotation of the pulp and the peach pit can be achieved, taking the same-direction rotation as an example in this embodiment can also realize the separation of the pulp and the peach pit.

[0056] Specifically, as a further technical solution of this embodiment, the screwing mechanism 200 includes a rotating tube 201, which is respectively fixed at the swinging ends of the left clamping arm and the right clamping arm through bearings to achieve rotation in the axial direction. One end of the rotating tube 201 facing the peach 5 is fixedly provided with an airbag seat 202 for sleeving the airbag 204, and an air passage 2021 that penetrates the airbag seat 202 and faces the airbag 204 is provided on the airbag seat 202, and it is communicated with a gas supply mechanism (i.e., an air pump) through a pipeline. The air passage 2021 can be arranged in a curved shape, and the gas only passes through the airbag seat 202, which is convenient for connecting with the air pump. It can also be arranged in a straight line. Of course, another air passage can also be correspondingly provided on the connecting plate 203 to realize the straight-line flow of gas. The airbag seat 202 plays a role in supporting and limiting the airbag 204. Especially when the gas is blown into the airbag 204 through the air passage 2021, it can provide regular support for the inflation of the airbag, prevent it from bulging unevenly or leaking air, and ensure accurate and uniform fitting to the outer surface of the peach. Of course, an outer shell 208 is also sleeved outside the airbag 204 to further ensure that the airbag 204 will not shift or leak air.

[0057] The airbag seat 202 rotates synchronously with the rotating tube 201 through the connecting plate 203. Fixed holes 2032 are provided on the connecting plate 203, and the three are tightly connected to each other to achieve coaxial rotation. Of course, air holes 2031 corresponding to the air passage 2021 can also be provided on the connecting plate 203 to realize the straight-line inlet and outlet of gas. A gear 206 for driving its axial rotation is also provided on the rotating tube 201, which can drive the rotating tube 201 to rotate axially, and then drive the airbag 204 to rotate to realize the screwing action.

[0058] In order to increase the friction force, rib strips 2041 are provided on the side of the airbag 204 facing the peach 5, which can better drive the peach pulp to rotate and prevent slipping.

[0059] In this embodiment, in order to achieve the automatic control of the screwing action, it is necessary to use whether the screwing mechanism accurately clamps the peach 5 as a reference. To achieve this purpose, a long rod 205 is movably sleeved inside the rotating tube 201. One end of the long rod 205 penetrates through the airbag 204 and approaches the peach 5, and a touch head 209 is screwed at this end. The other end extends out of the rotating tube 201 and is screwed with a touch block 207. The long rod 205 makes an axial reciprocating stroke movement in the rotating tube 201 through an elastic member 2051. The elastic member 2051 actually uses a compression spring, and its two ends can exactly achieve axial telescopic movement under the limit of the stepped portion.

[0060] For example, when the touch head 209 touches the peach 5, as the screwing mechanism continues to clamp, the long rod 205 will be blocked by the peach 5 and remain stationary, while the rotating tube 201 continues to approach the peach 5, and the long rod 205 and the rotating tube 201 move in opposite directions. When the peach 5 is completely clamped, the long rod 205 also remains stationary. At this time, the touch block 207 will contact the touch switch and the signal will be transmitted to prepare for the screwing action. The screwing connection method can achieve distance adjustment in the axial direction and realize the adjustment of different touch distances, especially when the size and shape of the peach 5 change.

[0061] In this embodiment, the driving mechanism includes a left connecting rod 302 hinged on the left clamping arm 101 and a right connecting rod 303 hinged on the right clamping arm 102. The left connecting rod 302 and the right connecting rod 303 are respectively hinged to both ends of the driving arm 301, and the driving arm 301 drives the left connecting rod 302 and the right connecting rod 303 at both ends to swing in the opposite direction under the transmission of the power shaft.

[0062] The power shaft is connected to the middle of the driving arm 301, driving both ends of the driving arm 301 to swing in the opposite direction, thereby driving the left clamping arm 101 and the right clamping arm 102 to perform mirror-like approaching or separating actions. Of course, springs can also be provided on the left connecting rod 302 and the right connecting rod 303 to achieve a certain reset effect.

[0063] In this embodiment, the linkage mechanism includes a swing arm 400, which is preferably coaxially hinged to the left clamping arm 101 and the right clamping arm 102. Both ends of the swing arm 400 are respectively movably connected to a transmission rod 401 through hinged support arms 403. The transmission rod 401 is movably inserted into a rod sleeve 402, and the rod sleeve 402 is fixed on the clamping arm. A transmission tooth 4011 provided on the transmission rod 401 meshes with the gear 206. When the clamping arms approach each other or move away from each other in the opposite direction, it can drive the transmission rod 401 to perform an axial lifting action in the rod sleeve 402, and then drive the gear 206 to rotate through the transmission tooth 4011 to achieve the axial rotation of the rotating tube 201, and the peach flesh also rotates accordingly. Embodiment Two

[0064] The difference between this embodiment and the first embodiment is that the purpose is to achieve reverse rotation of the two screwing mechanisms to prevent the pulp from being connected and to improve the effect of core removal and petal separation.

[0065] To achieve this purpose, the swing arm 400 is coaxially hinged with the left clamp arm 101 and the right clamp arm 102, so that it is easy to swing around the same hinge axis 103. The swing arm 400 is connected to the power shaft 405 through a connecting rod 404 and realizes reverse swing at both ends with the hinge as the center.

[0066] Specifically, the bottom of the swing arm 400 is also provided with a connecting rod 404 hinged thereto, and the other end of the connecting rod is hinged to the power shaft 405. When the power shaft 405 rotates forward and reverse, it will drive the swing arm 400 to rotate forward and reverse about the hinge shaft 103, thereby driving the transmission rods 401 in the left and right directions to perform reverse up and down lifting movements. In other words, when the transmission rod 401 is lifted and lowered in the reverse direction, the meshing rotation of the transmission tooth 4011 and the gear 206 is also reversed, thereby driving the airbag 204 to rotate in the reverse direction.

[0067] This creates an effect where the peach pit and peach flesh rotate relative to each other, and the two halves of peach flesh also rotate in opposite directions, making the separation between the flesh and the pit, and between the flesh and each other more thorough and rapid.

[0068] The airbag in the utility model can wrap all the peaches well, because the peaches are first screened before processing, and the specifications of the peaches are not very different from each other, and the gas also has a certain compression effect, so that the airbag can adapt to peaches of different sizes. That is, the tension range of the airbag is large, and it is easy to form a comprehensive wrapping contact with the outer surface of the peach, so that the outer surface of the peach can be evenly compressed, and the flesh is more beautiful.

[0069] After adopting the above technical solution, the technical effects that the utility model can produce are:

[0070] The peach flesh can be separated and pitted by twisting, rather than the traditional cutting or manual pitting method. The separation between the flesh and the pit is more natural, the appearance of the flesh is more intact, and the added value of the product is increased.

[0071] The airbag is inflated and deflated by an air pump, and can fit tightly with the outer surface of the peach, so that the force of twisting is distributed more evenly, and the fruit flesh will not be worn out due to excessive force in some parts.

[0072] More importantly, it saves workers the inconvenience of repeatedly disassembling and replacing the soft protective pad according to the size of the peach. As long as it is within the range of the airbag inflation, it can be used, which greatly simplifies the operation process, is more adaptable to a wider range of peach sizes, and significantly improves work efficiency.

[0073] The utility model is applicable to the pit-removing processing of spherical peaches, such as varieties of yellow peaches, fuzzy peaches, nectarines, etc.

[0074] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the utility model should be covered within the protection scope of the utility model.

Claims

1. A screwing mechanism for processing spherical peaches, comprising a left clamping arm (101) and a right clamping arm (102); Its characteristics are: The same ends of the left clamping arm (101) and the right clamping arm (102) are hinged to each other, and the other ends are respectively provided with screwing mechanisms (200) arranged oppositely; The left clamping arm (101) and the right clamping arm (102) drive the screwing mechanism (200) under the drive of a driving mechanism to swing towards or away from both sides of the peach (5) to clamp or release the peach (5); One end of each screwing mechanism (200) facing the peach (5) is provided with an airbag (204), and the airbag (204) inflates and wraps or deflates and separates both sides of the peach (5) under the drive of an air supply mechanism; The left clamping arm (101) and the right clamping arm (102) are respectively provided with a linkage mechanism for driving the axial rotation of the screwing mechanism (200) to screw both sides of the peach (5).

2. The screwing mechanism according to claim 1, characterized in that: The screwing mechanism (200) includes a rotating tube (201). One end of the rotating tube (201) facing the peach (5) is provided with an airbag seat (202) for sleeving the airbag (204). The airbag seat (202) is provided with an air passage (2021) that penetrates it and faces the airbag (204). The airbag seat (202) rotates synchronously with the rotating tube (201) through a connecting disk (203); A gear (206) for driving its axial rotation is also provided on the rotating tube (201).

3. The screwing mechanism according to claim 2, characterized in that: A long rod (205) is movably sleeved inside the rotating tube (201). One end of the long rod (205) penetrates the airbag (204) and is close to the peach (5), and the other end extends out of the rotating tube (201) and is provided with a touch block (207). The long rod (205) makes an axial reciprocating stroke movement in the rotating tube (201) through an elastic member (2051).

4. The screwing mechanism according to claim 3, characterized in that: The touch block (207) is threadedly connected to the long rod (205).

5. The screwing mechanism according to claim 2, characterized in that: The outer periphery of the airbag seat (202) is provided with a housing (208) for limiting and wrapping the airbag (204).

6. The screwing mechanism according to claim 1 or 2, characterized in that: One side of the airbag (204) facing the peach (5) is provided with ribs (2041).

7. The screwing mechanism according to claim 1, characterized in that: The driving mechanism includes a left connecting rod (302) hinged to the left clamping arm (101) and a right connecting rod (303) hinged to the right clamping arm (102). The left connecting rod (302) and the right connecting rod (303) are respectively hinged to both ends of a driving arm (301), and the driving arm (301) drives the left connecting rod (302) and the right connecting rod (303) at both ends to swing in the opposite direction under the transmission of a power shaft.

8. The screwing mechanism according to claim 2, characterized in that: The linkage mechanism includes a swing arm (400). Both ends of the swing arm (400) are respectively movably connected to a transmission rod (401) through a support arm (403). Transmission teeth (4011) provided on the transmission rod (401) are meshed with the gear (206).

9. The screwing mechanism according to claim 8, characterized in that: The swing arm (400) is coaxially hinged with the left clamp arm (101) and the right clamp arm (102); the swing arm (400) is transmission-connected to the power shaft (405) via a connecting rod (404) and realizes reverse swing at both ends with the hinge as the center of the circle.

10. The screwing mechanism according to claim 2, characterized in that: The air supply mechanism is an air pump connected to the air channel (2021) through a pipeline.

Images