Turnover device with loading and unloading functions

Abstract

A turnover device with feeding and material collecting functions according to the present invention is used to assist in the loading and unloading of a base processing device, and can also be adapted and modified for use in the loading and unloading during the processing of similar workpieces. It includes a bottom frame that is movable and stable on the bottom surface, with an opening on the upward side and the side facing the processing device. An active turnover frame is located in the lower part of the bottom frame and can move as a whole towards the processing device. A circulating in-and-out mechanism has a part located in the bottom frame and another part located in the active turnover frame. A turnover clamping sleeve mold for clamping the base circulates in the active turnover frame. By being used in combination with the processing device, the present invention can automatically return the processed base to the turnover device after processing, thus saving the investment in manual loading and unloading and eliminating the need for a separate turnover frame for unloading. Generally, the turnover device uses a slide rail as a guide, and most of the actions are driven by its own weight.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary devices during the processing of miter saw components, and particularly relates to a turnover device with feeding and discharging functions. Background Art

[0002] A miter saw is generally used for bevel cutting wooden workpieces, metal workpieces, and plastic workpieces.

[0003] The prior invention patent application of the present applicant has the name: Processing Device for the Base of a Miter Saw, which solves the problem of completing all the processing of the base of a miter saw with a telescopic head in one device, thereby improving processing efficiency and reducing labor intensity. However, this processing device still requires manual assistance for loading and unloading. In addition, currently, when any product uses manual assistance for loading and unloading, two turnover frames are required for separate use of loading and unloading, occupying site space. Therefore, the present invention will further solve the problem of loading and unloading during the processing of the base of a miter saw. Summary of the Invention

[0004] Aiming at the defects existing in the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a turnover device with feeding and discharging functions. By combining with a processing device, this turnover device can automatically return the base to be processed to the turnover device after completion of processing.

[0005] The invention object of the present invention is achieved through the following technical solutions: A turnover device with feeding and discharging functions, which is used to assist in the loading and unloading of a base processing device and can also be adapted and modified for use in the loading and unloading during the processing of similar workpieces. It includes a bottom frame that is movable and stably stands on the bottom surface, with an opening on the upward side and the side facing the processing device; a movable turnover frame whose lower part is inside the bottom frame and can move as a whole towards the processing device side; a circulating in-and-out mechanism with a part inside the bottom frame and another part inside the movable turnover frame; and a turnover clamping sleeve mold that circulates inside the movable turnover frame and is used to clamp the base.

[0006] Preferably, the turnover clamping sleeve mold has an opening on one circular side, and the opening position forms a natural inward contraction under the action of stress.

[0007] Preferably, the movable turnover frame is vertically through, with a rectangular cross-section having an opening on one side. The opening direction of the cross-section faces the processing device side. The plate surface part on the side opposite to the opening has a curvature that matches the curvature of the outer edge of the turnover clamping sleeve mold. Each of the two outer side surfaces on both sides of the opening is provided with a guide rail strip. Two or more rollers are respectively provided on the single side of the two guide rail strips close to the bottom. Grooves for the guide rail strips and rollers to pass through are provided at the corresponding positions on the two inner side walls of the bottom frame. After the movable turnover frame is combined with the bottom frame, there is a section of empty space at the bottom.

[0008] Preferably, on both sides of the opening of the flow clamping sleeve mold, there are respectively provided a pulley in the shape of a cylinder, and a guiding member is provided on the outer end surface of the pulley. The guiding member includes a vertical walking guiding block parallel to the large plane of the flow clamping sleeve mold and a horizontal walking guiding block intersecting the vertical walking guiding block at a right angle. There is a gap at the intersection of the two, that is, there are gaps with the same size on both sides of the vertical walking guiding block and both sides of the horizontal walking guiding block. At the same time, the sizes of the outer sides of the two are relatively small.

[0009] Preferably, the circulating in-and-out mechanism includes a set of first tracks for the passage of the guiding members respectively provided on the inner side walls of both sides of the movable turnover frame, a second track that is arc-transitionally connected to the upper end of the first track and then extends toward the processing device side while inclining downward, a third track that is arc-transitionally connected to the distal end of the second track and then extends vertically downward, and a fourth track that is arc-transitionally connected to the lowest end of the third track and then extends toward the first track side while inclining downward to enter the first track. The first track, the second track, the third track, and the fourth track on the same side form a circulating runway.

[0010] Preferably, positioning bars are provided on the straight sections in the two sets of runways. The positioning bars can enter the gaps on both sides of the vertical walking guiding block or enter the gaps on both sides of the horizontal walking guiding block; among them, the middle section of the positioning bar in the third track is partially cut off.

[0011] Preferably, the circulating in-and-out mechanism further includes one or more elastic pressing plates provided at each bend section and some straight sections of the runway, a pushing mechanism provided above the cut-off section of the positioning bar in the third track, a picking mechanism provided below the cut-off section of the positioning bar in the third track, and a lifting mechanism provided in the bottom frame and located below the movable turnover frame.

[0012] Preferably, each elastic pressing plate can obtain an elastic force that deflects toward the inner side of the turnover device through a pressing plate connecting elastic band or a torsion spring provided at the shaft end.

[0013] Preferably, the pushing mechanism includes a mounting seat fixed in the third track, a sliding guiding member driven by a cylinder to expand and contract and provided in the mounting seat, a top pushing member driven by a cylinder to push and provided in the mounting seat, and a positioning cylinder provided in the mounting seat at the cut-off section of the positioning bar in the third track, and its telescopic rod can enter the third track. The base has a plurality of round holes and waist holes on the center line in the length direction. The sliding guiding member utilizes these round holes and waist holes, passes through and enters the clamping sleeve mold of the processing device, and then through the pushing of the top pushing member, the transfer and handover are completed. The sliding guiding member includes a set of upper and lower guide rods, a guide rail for stabilizing the guide rods, and a pushing bottom plate connecting the upper and lower sets of guide rods into a whole.

[0014] Preferably, the picking mechanism includes a reversing limit cylinder fixed on the outside of the third track in the cut-off section of the third track positioning bar, whose telescopic rod can enter the third track, and an extrusion sleeve mold cylinder fixed on the outside of the third track in the lower section of the cut-off section of the third track positioning bar, whose telescopic rod can enter the third track.

[0015] In summary, the present invention has the following advantages compared with the prior art:

[0016] The present invention is used in combination with a processing device to fully automatically return the base to be processed to the turnover device after processing, thereby eliminating the need for manual labor in loading and unloading, and there is no need to use a separate turnover frame for unloading. The turnover device generally uses a slide rail as a guide, and most of the actions are driven by its own weight. A cylinder power source is added during the movement to push, transfer and flip. After collecting the materials, a forklift arm structure is used to lift the processed base back to the turnover frame. At the same time, the lifting action also drives a new round of bases to be processed. The routes along which the bases are driven are guided by relevant components, with a short path and high efficiency. In addition, the power sources of the present invention are ordinary cylinders and motors, which can be easily combined with a program to achieve fully automated control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the base;

[0018] Figure 2 It is a structural schematic diagram of the clamping base of the flow clamping sleeve mold;

[0019] Figure 3 It is a structural schematic diagram of the present invention in an application scenario;

[0020] Figure 4 It is a schematic diagram of the structure of the present invention (the conveyor belt part, the movable turnover frame and the bottom frame part added in the processing device are cut away for easy understanding and observation);

[0021] Figure 5 It is a schematic diagram of the structure of the present invention (in Figure 4 On the basis of further hiding the flow clamping die);

[0022] Figure 6 It is a schematic diagram of the structure of the present invention (in Figure 5 was redirected on the basis of

[0023] Figure 7 It is a schematic diagram of the structure of the present invention in an application scenario, in which the flow clamping sleeve die is in a turning state (part of the processing device is hidden);

[0024] Figure 8 It is a schematic diagram of the structure of the present invention in an application scenario, in which the flow clamping sleeve mold completes the clamping of the processed base and then slides down and turns again;

[0025] Figure 9 is Figure 8 a structural schematic diagram from another angle based on

[0026] Figure 10 a structural schematic diagram after the combination of the mounting base and the sliding guiding member;

[0027] Figure 11 is a structural schematic diagram of the bottom frame;

[0028] Figure 12 is a structural schematic diagram of the present invention in the application scenario (part of the processing device is hidden).

[0029] Markings in the figure: processing device 01, base 02, cylinder assembly 03, bottom frame 10, movable turnover frame 20, arc 21, guide rail strip 22, roller 23, circulating in-and-out mechanism 30, first track 31, second track 32, third track 33, fourth track 34, elastic pressing plate 35, pushing mechanism 36, mounting base 361, sliding guiding member 362, guide rod 62a, guide rail 62b, pushing bottom plate 62c, ejecting pushing member 363, positioning cylinder 364, picking mechanism 37, reversing limit cylinder 371, extrusion sleeve die cylinder 372, lifting mechanism 38, fork arm 381, abutment 382, turnover clamping sleeve die 40, pulley 41, guiding member 42, vertical walking guiding block 421, horizontal walking guiding block 422, positioning strip 43. Detailed Embodiments

[0030] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings:

[0031] Embodiment 1

[0032] Figure 1 What is shown is the bevel saw base 02 with a draft angle after die casting and molding, Figure 2 What is shown is the turnover clamping sleeve die 40 for clamping the base 02;

[0033] The present disclosure provides a turnover device with loading and unloading functions, which is used for the loading and unloading of the bevel saw base processing device, and can also be adapted and modified for the loading and unloading during the processing of similar workpieces with a draft angle. It is located on the loading and unloading side of the processing device 01 as a whole. Referring to Figure 3 , it includes a bottom frame 10 that is movable and stable, standing on the bottom surface, with an opening on the upward side and the side facing the processing device 01, a movable turnover frame 20 whose lower part is inside the bottom frame 10 and can move as a whole toward the processing device 01 side, a circulating in-and-out mechanism 30 with a part arranged inside the bottom frame 10 and another part arranged inside the movable turnover frame 20, and a turnover clamping sleeve die 40 that circulates inside the movable turnover frame 20 and is used for clamping the base 02;

[0034] The rotating clamping sleeve die 40 has the same draft angle as the base 02, and there is an opening on one side of the circle. Under the action of stress at the opening position, it naturally shrinks inward. When the base 02 is appropriately stressed, it can overcome the inward contraction and enter the rotating clamping sleeve die 40 in a squeezing manner, thereby forming a clamping. The specifications, quantities, and positions of the loaded and clamped bases 02 are exactly the same as those of the clamping sleeve die in the processing device 01 (the bases 02 are arranged in groups of two diagonally flat. For the convenience of description, the component in the processing device 01 that clamps the base 02 is also named the clamping sleeve die);

[0035] During operation, referring to all the drawings, the turnover device moves to a suitable position on the loading and unloading side of the processing device 01. The circulating in-and-out mechanism 30 operates to transfer a rotating clamping sleeve die 40 loaded with a group of bases 02 to be flush with a clamping sleeve die on the loading side of the processing device 01. By setting the power source cylinder assembly 03, the movable turnover frame 20 is moved closer to the processing device 01. The circulating in-and-out mechanism 30 acts to push the group of bases 02 from the rotating clamping sleeve die 40 into the clamping sleeve die of the processing device 01. The movable turnover frame 20 is moved away from the processing device 01. Subsequently, the processing device 01 unloads and outputs a group of bases 02 that have been previously processed and completed through the conveyor belt. It should be noted that the bottom of the upper layer of the conveyor belt has a hard plate support. The circulating in-and-out mechanism 30 continues to act to turn the previously emptied rotating clamping sleeve die 40 after the pushing is completed into a horizontal state. The flipping direction is such that the direction with the larger flared opening formed by the draft angle is downward. The processing device 01 transports a group of bases 02 that have been processed to directly below the horizontally placed rotating clamping sleeve die 40. The circulating in-and-out mechanism 30 fits the rotating clamping sleeve die 40 over the group of bases 02 and applies pressure to form a clamping (the pressure application here needs to rely on the support of the hard plate). The circulating in-and-out mechanism 30 continues to act, and the rotating clamping sleeve die 40 moves downward to the lowest layer of the movable turnover frame 20. The circulating in-and-out mechanism 30 jacks it up. A group of bases 02 that have been processed re-enter the movable turnover frame 20 along with the rotating clamping sleeve die 40. A group of bases 02 to be processed on the top layer enter the above-mentioned handover procedure with the processing device 01 along with the upward movement of the rotating clamping sleeve die 40. This process circulates in sequence until all the bases 02 of the turnover device are processed, and then the turnover device as a whole moves away from the processing device 01.

[0036] Figure 6Shows the specific form of the movable turnover box 20 installed in the bottom frame 10. The movable turnover box 20 is vertically through and has a rectangular cross-section with one side being open. The opening direction of the cross-section faces the processing device 01 side. One side plate part opposite to the opening has a radian 21, and this radian 21 matches the radian of the outer edge of the transfer clamping sleeve die 40. The two outer side surfaces on both sides of the opening respectively have guide rails 22. Two or more rollers 23 are respectively provided on the two guide rails 22 close to the bottom on one side. At the corresponding positions on the two inner side walls of the bottom frame 10, there are grooves for the guide rails 22 and the rollers 23 to pass through. After the movable turnover box 20 is matched with the bottom frame 10, there is a section of empty space at the bottom. The space of this empty space is used for the transfer clamping sleeve die 40 to rotate here, and an upward lifting mechanism is arranged in the empty space to enable the transfer clamping sleeve die 40 to completely enter the movable turnover box 20;

[0037] Refer to Figure 2 , on both sides of the opening of the transfer clamping sleeve die 40, there is respectively provided a cylindrical pulley 41. On the outer end surface of the pulley 41, there is a guiding member 42. The guiding member 42 includes a vertical walking guiding block 421 parallel to the large plane of the transfer clamping sleeve die 40 and a horizontal walking guiding block 422 that intersects the vertical walking guiding block 421 at a cross. There is a gap at the intersection part, that is, there are gaps with the same size on both sides of the vertical walking guiding block 421 and both sides of the horizontal walking guiding block 422. At the same time, the outer side dimensions of both are relatively small, which is beneficial for external fitting parts to enter the gap between the two.

[0038] Figure 3-11 Respectively show the positions of the circulating in-and-out mechanism 30 in the turnover device. The circulating in-and-out mechanism 30 includes a set of first tracks 31 for the guiding member 42 to pass through respectively arranged on the two inner side walls of the movable turnover box 20, a second track 32 that is arc-transitionally connected to the upper end of the first track 31 and then extends towards the processing device 01 side and slopes downwards, a third track 33 that is arc-transitionally connected to the distal end of the second track 32 and then extends vertically downwards, and a fourth track 34 that is arc-transitionally connected to the lowest end of the third track 33 and then extends towards the first track 31 side and slopes downwards to enter the first track 31. The first track 31, the second track 32, the third track 33, and the fourth track 34 on the same side form a circulating runway, and multiple transfer clamping sleeve dies 40 are slidably fitted in the two runways;

[0039] To enable each rotating clamping sleeve die 40 to rotate in the designed direction within the runway, positioning bars 43 are provided in the straight sections of these two groups of runways. The positioning bars 43 can enter the gaps on both sides of the vertical walking guide block 421 or enter the gaps on both sides of the horizontal walking guide block 422. Among them, the middle section of the positioning bar 43 in the third track 33 is partially cut off. The purpose is to arrange a pushing mechanism at the upper section of the cut-off part to push the base 02 in the rotating clamping sleeve die 40 into the processing device 01, and arrange a picking mechanism at the lower section of the cut-off part to pick up the base 02 that has been processed and transmitted out. Within the cut-off range, it is necessary to complete the conversion of the rotating clamping sleeve die 40 from the vertical pushing state to the horizontal state after flipping to pick up the base 02.

[0040] The circulating in-and-out mechanism 30 further includes one or more elastic pressing plates 35 provided at each bend of the runway, a pushing mechanism 36 provided above the cut-off section of the positioning bar 43 in the third track 33, a picking mechanism 37 provided below the cut-off section of the positioning bar 43 in the third track 33, and a lifting mechanism 38 provided in the bottom frame 10 and located below the movable turnover frame 20.

[0041] Each elastic pressing plate 35 can obtain the elastic force offsetting towards the inner side of the turnover device through the pressing plate connecting elastic band or by setting a torsion spring at the shaft end. However, different elastic forces need to be given according to the different positions where the elastic pressing plates 35 are set. For example, at the bend between the second track 32 and the third track 33, the rotating clamping sleeve die 40 slides down obliquely according to the inclination of the second track 32. Here, the elastic force needs to be relatively small, that is, the elastic force cannot be greater than the potential energy of the sliding to make it stop sliding. At the bend between the third track 33 and the fourth track 34, the rotating clamping sleeve die 40 slides vertically along the third track 33. Here, the potential energy of the sliding is large, and the elastic force needs to be relatively large. The elastic forces of the elastic pressing plates 35 at other positions are also selected and set according to actual needs.

[0042] Figure 3-9 Respectively show the positions of the pushing mechanism 36 in the turnover device, including the mounting seat 361 fixed in the third track 33, the sliding guide member 362 driven by a cylinder to expand and contract and arranged in the mounting seat 361, the ejecting pushing member 363 driven by a cylinder to push and arranged in the mounting seat 361, and the positioning cylinder 364 arranged in the mounting seat 361 and whose telescopic rod can enter the third track 33 at the cut-off section of the positioning bar 43 in the third track 33.

[0043] From Figure 2 it can be seen that the base 02 has a plurality of round holes and waist holes on the center line in the length direction. The sliding guide member 362 utilizes these round holes and waist holes to pass through and enter the clamping sleeve die of the processing device 01, and then through the pushing of the ejecting pushing member 363, the transfer handover is completed (in this embodiment, the ejecting pushing member 363 is set at the position of pushing the disc of the base 02, and it can also be at other positions or a combination of multiple positions for pushing).Figure 10 Shows the position and form of the sliding guide 362 in the mounting base 361. The sliding guide 362 includes a set of guide rods 62a at the upper and lower parts respectively, a guide rail 62b for stabilizing the guide rods 62a, and a pushing bottom plate 62c for connecting the upper and lower sets of guide rods 62a into a whole. The meaning of a set of guide rods 62a is that it includes at least two or more rods with a circular or kidney-shaped cross-section or a combination thereof, so that the base 02 can slide stably to the opposite side.

[0044] The picking mechanism 37 includes Figure 5-7 the cut-off section of the positioning strip 43 on the third track 33 shown in, a commutation limit cylinder 371 fixed outside the third track 33 and whose telescopic rod can enter the third track 33, and a squeezing sleeve mold cylinder 372 fixed outside the third track 33 at the lower section of the cut-off section of the positioning strip 43 on the third track 33 and whose telescopic rod can enter the third track 33. When the picking mechanism 37 works, referring to Figure 7 , after the transfer, the empty flow clamping sleeve mold 40 falls on the telescopic rod of the commutation limit cylinder 371. The set position of the commutation limit cylinder 371 is exactly such that when the ejecting push member 363 extends, it can push the upper part of the flow clamping sleeve mold 40. After pushing, the flow clamping sleeve mold 40 is in a nearly parallel state. At this time, the telescopic rod of the commutation limit cylinder 371 retracts, and the flow clamping sleeve mold 40 falls in the horizontal direction, completing the commutation from vertical to horizontal. After falling, it lands on the processed base 02. The conveyor belt of the base 02 has a rigid support. At this time, the set position of the squeezing sleeve mold cylinder 372 is exactly above the pulley 41, that is, when the telescopic rod of the squeezing sleeve mold cylinder 372 extends, it just touches the upper half of the pulley 41. Due to the arc-shaped outer surface of the pulley 41, when the telescopic rod continues to extend, it will force the pulley 41 to move downward. Thus, under the simultaneous extension of the telescopic rods on both sides, the pulley 41 moves downward synchronously, and the flow clamping sleeve mold 40 completely sleevs the two bases 02 through extrusion;

[0045] After the sleeving is completed, referring to Figure 12 , the descending flow clamping sleeve mold 40 will touch one of the elastic pressing plates 35. Note that this section of the positioning strip 43 is also missing. In this way, the horizontally placed flow clamping sleeve mold 40 can be turned to the vertical direction until it enters the lower curved section, and then enters the fourth track 34 in the correct direction with the cooperation of another elastic pressing plate 35, reaches the bottom of the fourth track 34, which is also the starting position of the first track 31, and then is lifted upward by the lifting mechanism 38, and so on in a cycle.

[0046] The principle of the lifting mechanism 38 is the same as that of the lifting mechanism of the forklift fork arm, which is driven by a motor to drive the screw transmission. For details, refer to Figure 11, including a fork arm 381 and a platform 382 which is elastically mounted on a side wall of one side of the arc 21 and has a lower arc-shaped surface; each rotated and returned flow clamping sleeve die 40 is lifted upward by the fork arm 381 of the lifting mechanism. When the outer edge of the flow clamping sleeve die 40 abuts against the platform 382, the platform retracts. After the flow clamping sleeve die 40 breaks through the height of the platform, the platform resets. After the fork arm 381 descends, the flow clamping sleeve die 40 stops on the platform 382. At the same time, the upward movement of the fork arm 381 causes the uppermost flow clamping sleeve die 40 to enter the second track 32 and slide downward along the slope of the second track 32 to repeat the transfer of the base 02 to be processed.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A turnover device with feeding and receiving functions, which is used to assist in the loading and unloading of a processing device for a base (02). Characterized in that, it includes a bottom frame (10) that is movable and stable, stands on the bottom surface, has an opening on the upward side and the side facing the processing device (01), a movable turnover frame (20) with the lower part inside the bottom frame (10) and the whole being movable towards the side of the processing device (01), a circulating in-and-out mechanism (30) with a part inside the bottom frame (10) and another part inside the movable turnover frame (20), and a turnover clamping sleeve die (40) for clamping the base (02) that circulates inside the movable turnover frame (20); the movable turnover frame (20) is vertically through, with a rectangular cross-section with one side being open, the opening direction of the cross-section facing the side of the processing device (01), and the plate surface part on the side opposite to the opening having a radian (21), which matches the radian of the outer edge of the turnover clamping sleeve die (40). Each of the two outer side surfaces on both sides of the opening is provided with a guide rail strip (22). On each of the two guide rail strips (22), more than two rollers (23) are provided on the single side close to the bottom. At the corresponding positions on the two inner side walls of the bottom frame (10), grooves for the guide rail strips (22) and the rollers (23) to pass through are provided. After the movable turnover frame (20) is matched with the bottom frame (10), there is a section of empty space at the bottom; on both sides of the opening of the turnover clamping sleeve die (40), a cylindrical pulley (41) is respectively provided. On the outer end surface of the pulley (41), a guiding member (42) is provided. The guiding member (42) includes a vertical walking guiding block (421) parallel to the large plane of the turnover clamping sleeve die (40) and a horizontal walking guiding block (422) that crosses the vertical walking guiding block (421) in a cross shape. There is a gap at the intersection of the two, that is, there are gaps with the same size on both sides of the vertical walking guiding block (421) and both sides of the horizontal walking guiding block (422), and the sizes of the outer sides of both are relatively small; the circulating in-and-out mechanism (30) includes a set of first tracks (31) for the guiding member (42) to pass through respectively provided on the two inner side walls of the movable turnover frame (20), a second track (32) that is arc-transitionally connected to the upper end of the first track (31) and then extends towards the side of the processing device (01) while inclining towards the lower place, a third track (33) that is arc-transitionally connected to the distal end of the second track (32) and then extends vertically downwards, and a fourth track (34) that is arc-transitionally connected to the lowest end of the third track (33) and then extends towards the side of the first track (31) while inclining towards the lower place and enters the first track (31). The first track (31), the second track (32), the third track (33), and the fourth track (34) on the same side form a circulating runway.

2. The turnover device with feeding and receiving functions according to claim 1, Characterized in that, the turnover clamping sleeve die (40) is provided with an opening on the circular side, and the opening position has a natural tendency to close inwards under stress.

3. The turnover device with feeding and receiving functions according to claim 1, Characterized in that, Positioning strips (43) are provided on the straight sections within both groups of said runways. The positioning strips (43) can enter the gaps on both sides of the vertical walking guide blocks (421) or enter the gaps on both sides of the horizontal walking guide blocks (422); among them, the middle section of the positioning strip (43) within the third track (33) is partially cut off.

4. The turnover device with feeding and discharging functions according to claim 3, characterized in that the cyclic access mechanism (30) further includes one or more elastic pressing plates (35) provided at each bend section and some straight sections of the runway, a pushing mechanism (36) provided above the cut-off section of the positioning strip (43) within the third track (33), a picking mechanism (37) provided below the cut-off section of the positioning strip (43) within the third track (33), and a lifting mechanism (38) provided in the bottom frame (10) and located below the movable turnover frame (20).

5. The turnover device with feeding and discharging functions according to claim 4, characterized in that each of the elastic pressing plates (35) can obtain an elastic force for offsetting towards the inner side of the turnover device through a pressing plate connecting elastic band or by arranging a torsion spring at the shaft end.

6. The turnover device with feeding and discharging functions according to claim 5, characterized in that the pushing mechanism (36) includes a mounting seat (361) fixed in the third track (33), a sliding guide member (362) arranged in the mounting seat (361) and driven by a cylinder to expand and contract, an ejecting pushing member (363) arranged in the mounting seat (361) and driven by a cylinder to push, and a positioning cylinder (364) arranged in the mounting seat (361) at the cut-off section of the positioning strip (43) in the third track (33), and its telescopic rod can enter the third track (33); The base (02) has a plurality of round holes and waist-shaped holes on the center line in the length direction. The sliding guide member (362) utilizes these round holes and waist-shaped holes, passes through and enters the clamping sleeve die of the processing device (01), and then through the pushing of the ejecting pushing member (363), the transfer handover is completed. The sliding guide member (362) includes a set of guide rods (62a) each on the upper and lower sides, a guide rail (62b) for stabilizing the guide rods (62a), and a pushing bottom plate (62c) connecting the set of guide rods (62a) on the upper and lower sides into a whole.

7. The turnover device with feeding and discharging functions according to claim 4, characterized in that the picking mechanism (37) includes a reversing limit cylinder (371) fixed outside the third track (33) at the cut-off section of the positioning strip (43) in the third track (33), and its telescopic rod can enter the third track (33), and an extrusion sleeve die cylinder (372) fixed outside the third track (33) at the lower section of the cut-off section of the positioning strip (43) in the third track (33), and its telescopic rod can enter the third track (33).

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