A trash can injection molding auxiliary demolding code placement device

Abstract

The application relates to the technical field of garbage can production equipment, in particular to a garbage can injection-assisted demolding and code placing device, which comprises a base, an L-shaped guide rail arranged on the base and a frame structure movably arranged on the base through the guide rail; the frame structure comprises an assembling plate movably arranged on the base through the guide rail, an expansion plate slidably sleeved with the assembling plate and a ring body fixed to one end of the expansion plate, and a circumferential fastening mechanism for circumferentially clamping and fixing the garbage can is arranged on the ring body; through the mutual cooperation of various mechanisms and components, the effective automatic demolding and transferring function of the garbage can is realized; through the cooperation of the mechanical structure, the garbage can is clamped or released by the circumferential fastening mechanism at a proper movement position; compared with the negative pressure suction mode, the stability of the garbage can during the transferring process can be effectively ensured, the problem that the garbage can falls during the transferring process and causes loss is prevented, and therefore, the device is high in reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garbage can production equipment, and particularly relates to a garbage can injection molding auxiliary demolding and stacking device. BACKGROUND

[0002] The manufacturing material of a garbage can is generally plastic, and therefore, a plastic garbage can is generally produced by using an injection molding process. Injection molding is a commonly used method in plastic forming processing, and the process is as follows: powdered or granular plastic is sent from a hopper of an injection machine into a cylinder for heating, so that the plastic is melted to reach a flowing state and have good plasticity, and then is injected into a mold cavity with a lower temperature under the pushing of a plunger through a nozzle at the front end of the cylinder, and after cooling and setting, the mold is opened to complete the manufacturing of the plastic garbage can.

[0003] After cooling, the garbage can is separated from the male mold, and then the barrel body is sucked by a suction cup and taken off from the injection molding equipment. However, the weight of the garbage can itself is not small, and therefore, in the whole separation and transfer process, a large negative pressure suction force needs to be provided to ensure that the barrel body will not fall off. However, in the actual production process, the surface of the injection molded garbage can is not completely smooth, because the plastic garbage can shrinks during the cooling process after injection molding, and due to the temperature difference, the plastic surface is not completely smooth after shrinking. Therefore, the garbage can taken out from the mold after injection molding needs to be surface treated. Because the surface of the garbage can after injection molding is not completely flat, safety hazards such as falling of the garbage can often occur during the suction process. SUMMARY

[0004] The present application aims to provide a garbage can injection molding auxiliary demolding and stacking device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A garbage can injection molding auxiliary demolding and stacking device, comprising a base, a guide rail in the shape of "L" arranged on the base, and a frame structure movably arranged on the base through the guide rail;

[0007] The frame structure comprises an assembly plate movably arranged on the base through the guide rail, an extension plate slidingly fitted with the assembly plate, and a ring body fixed to one end of the extension plate, and a circumferential fastening mechanism for circumferentially clamping and fixing the garbage can is arranged on the ring body;

[0008] The garbage can injection molding auxiliary demolding and stacking device further comprises:

[0009] The Malta cross core mechanism is installed on the side of the base and is connected with a swing mechanism and an orientation switching mechanism. The swing mechanism can drive the assembly plate to move along the guide rail to perform transfer and overturning actions on the garbage can in the ring body. The orientation switching mechanism cooperates with the telescopic plate and can drive the telescopic plate to slide relative to the assembly plate.

[0010] The circumferential fastening mechanism is triggered when the telescopic plate slides towards the outside of the assembly plate and during the latter part of the movement of the assembly plate along the guide rail to release the garbage can and perform clamping actions on the garbage can.

[0011] As a further aspect of the present application, the Malta cross core mechanism includes a driving motor installed on the base, a driving wheel fixedly installed on the output shaft of the driving motor, and a first driven wheel and a second driven wheel rotatably installed on the base.

[0012] The rotation shaft of the first driven wheel is connected with the orientation switching mechanism, and the rotation shaft of the second driven wheel is connected with the swing mechanism.

[0013] As a further aspect of the present application, the orientation switching mechanism includes a rolling fitting structure installed on the base and a sliding transmission structure connected with the rolling fitting structure. The rolling fitting structure is connected with the rotation shaft of the first driven wheel, and the sliding transmission structure cooperates with the telescopic plate.

[0014] As a further aspect of the present application, the sliding transmission structure includes two guide plates fixedly installed on the base and a horizontal moving plate slidingly arranged on the two guide plates. The bottom of the horizontal moving plate is fixedly provided with two positioning cylinders, and the top of the telescopic plate is fixedly provided with two positioning columns adapted to the positioning cylinders. The top of the horizontal moving plate is further provided with a strip-shaped sliding groove, and the strip-shaped sliding groove cooperates with the rolling fitting structure.

[0015] As a further aspect of the present application, the rolling fitting structure includes two driving wheels rotatably installed on the base, a connecting piece connecting the two driving wheels, and a first column provided on the connecting piece. The first column extends into the strip-shaped sliding groove and is slidingly connected with the horizontal moving plate.

[0016] The connecting piece rollingly cooperates with the two driving wheels, and the rotation shaft of one of the driving wheels is connected with the rotation shaft of the first driven wheel through a first bevel gear set and a first transmission belt.

[0017] As a further further scheme of the present application: the swing mechanism comprises a swing plate rotatably mounted on the base, the swing plate is provided with a first slot and a second slot, one end of the assembly plate towards the base is fixed with a driven column, the driven column penetrates through the first slot and is in sliding connection with the swing plate, the second slot is connected with a circumferential driving assembly mounted on the base, and the circumferential driving assembly is connected with the rotation shaft of the second driven wheel.

[0018] As a further further scheme of the present application: the circumferential driving assembly comprises a disc rotatably mounted on the base and a second column fixedly mounted at the eccentric position of the disc, the second column extends into the second slot and is in sliding connection with the swing plate, and the disc is connected with the second driven wheel through a second transmission belt.

[0019] As a further further scheme of the present application: the circumferential fastening mechanism comprises four groups of driven structures equidistantly arranged on the ring body in a circumferential direction and a sliding fitting structure mounted on the ring body.

[0020] The driven structure comprises a driven plate slidingly arranged on the ring body and a protruding column fixedly mounted on the driven plate, the protruding column is connected with the sliding fitting structure, and one end of the driven plate away from the protruding column is provided with a clamping piece.

[0021] As a further further scheme of the present application: the sliding fitting structure comprises a first limiting ring rotatably mounted on the ring body and a second limiting ring fixedly connected with the first limiting ring through a fastener, a gap is reserved between the first limiting ring and the second limiting ring, the protruding column extends into the gap and is in sliding connection with the first limiting ring and the second limiting ring.

[0022] The gap comprises a plurality of connected arc segments, a first inclined segment and a second inclined segment, the first limiting ring and the second limiting ring are both provided with a plurality of locking structures connected with the ring body, the second limiting ring is further provided with a ring of teeth, the teeth are in meshing connection with a gear rotatably mounted on the telescopic plate, a ratchet wheel is also rotatably mounted on the telescopic plate, the rotation shaftes of the ratchet wheel and the gear are connected through a second bevel gear set, and the assembly plate and the base are respectively fixedly mounted with a first ratchet plate and a second ratchet plate matched with the ratchet wheel.

[0023] As a further further scheme of the present application: the locking structure comprises two guide rods fixedly mounted on the first limiting ring or the second limiting ring, a mounting seat slidingly arranged on the two guide rods, and a limiting wheel mounted on the mounting seat.

[0024] The outer periphery of the guide rod is further sleeved with a cylindrical spring, one end of the cylindrical spring is connected with the mounting seat, the other end is connected with an annular protrusion fixed on the guide rod, and two limiting protrusions matched with the limiting wheels are further fixed on the outer wall of the ring body.

[0025] Compared with the prior art, the beneficial effects of the present application are: the present application is novel in design, through the mutual cooperation of various mechanisms and components, an effective automatic demolding and transferring function of the garbage can is realized, through the cooperation of the mechanical structure, the garbage can is clamped or released by the circumferential fastening mechanism at a proper movement position, compared with the negative pressure suction method, the stability of the garbage can during the transferring process can be effectively guaranteed, the problem of loss caused by the falling of the garbage can during the transferring process is prevented, therefore, the present device is high in reliability and is suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure schematic view of one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0027] Figure 2 Structure schematic view of another angle of one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0028] Figure 3 Structure schematic view of still another angle of one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0029] Figure 4 Structure schematic view of still another angle of one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0030] Figure 5 Structure schematic view of Figure 4 Structure enlarged view of A in the middle.

[0031] Figure 6 Structure schematic view of the Maltese cross movement mechanism in one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0032] Figure 7 Structure schematic view of another angle of the Maltese cross movement mechanism in one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0033] Figure 8 Disassembly schematic view of the assembly plate and the telescopic plate in one embodiment of the garbage can injection molding auxiliary demolding and stacking device.

[0034] Figure 9 Structure schematic view of Figure 8 Structure schematic view of another angle.

[0035] Figure 10Structure diagram of circumferential fastening mechanism in one embodiment of injection molding auxiliary demolding and code placing device for garbage can.

[0036] In the figure: 1, base; 2, assembly plate; 201, roller; 202, driven column; 3, telescopic plate; 4, ring body; 5, driven plate; 6, first limiting ring; 7, second limiting ring; 701, arc segment; 702, first inclined segment; 703, second inclined segment; 8, protruding column; 9, clamping piece; 10, guide rod; 11, annular protrusion; 12, cylindrical spring; 13, mounting seat; 14, limiting wheel; 15, limiting protrusion; 16, fastener; 17, gear; 18, ratchet; 19, first ratchet plate; 20, second ratchet plate; 21, driving motor; 22, driving wheel; 23, first driven wheel; 24, second driven wheel; 25, first transmission belt; 26, first bevel gear set; 27, driving wheel; 28, connecting piece; 29, first column body; 30, transverse moving plate; 3001, strip-shaped sliding groove; 31, positioning cylinder; 32, positioning column; 33, swing plate; 3301, first groove body; 3302, second groove body; 34, disc; 35, second transmission belt; 36, second column body; 37, guide plate; 38, second bevel gear set. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0039] Please refer to Figures 1-10 In the embodiments of the present application, an injection molding auxiliary demolding and code placing device for garbage can includes a base 1, a guide rail provided on the base 1 and in the shape of "L", and a frame structure movably provided on the base 1 through the guide rail.

[0040] The frame structure comprises an assembly plate 2 movably arranged on the base 1 through the guide rail, a telescopic plate 3 slidably sleeved with the assembly plate 2, and a ring body 4 fixed to one end of the telescopic plate 3, and a circumferential fastening mechanism for circumferentially clamping and fixing the garbage can is arranged on the ring body 4.

[0041] The garbage can injection assisted demolding stacking device further comprises:

[0042] The Maltese cross core mechanism is installed on the side of the base 1 and is connected with a swing mechanism and an orientation switching mechanism, the swing mechanism can drive the assembly plate 2 to move along the guide rail to perform transfer and overturning actions on the garbage can in the ring body 4, and the orientation switching mechanism cooperates with the telescopic plate 3 and can drive the telescopic plate 3 to slide relative to the assembly plate 2.

[0043] The circumferential fastening mechanism is triggered when the telescopic plate 3 slides towards the outside of the assembly plate 2 and in the latter part of the movement of the assembly plate 2 along the guide rail, so as to release the garbage can and perform clamping action on the garbage can.

[0044] It should be noted that when the telescopic plate 3 slides towards the outside of the assembly plate 2, the ring body 4 will move between the convex and concave molds, and the circular shape of the ring body 4 corresponds to the garbage can on the convex mold. When the telescopic plate 3 is in the contracted state on the assembly plate 2, a conveying belt should be arranged below the ring body 4 (i.e. on the base 1) to facilitate the stacking of the garbage can after the garbage can is released by the circumferential fastening mechanism.

[0045] Secondly, two rollers 201 are arranged at the end of the assembly plate 2 away from the ring body 4, and the guide rail (not labeled in the figure) is adapted to the rollers 201 to realize overturning of the garbage can during the transfer process, which facilitates subsequent stacking.

[0046] The specific working process of the device is as follows:

[0047] The Maltese cross core works to drive the orientation switching mechanism to move twice, the swing mechanism to move once, and the movement of the swing mechanism is between the two movements of the orientation switching mechanism.

[0048] When the orientation switching mechanism moves for the first time, it drives the telescopic plate 3 to slide towards the outside of the assembly plate 2, so that the ring body 4 reaches the obliquely upper side of the garbage can.

[0049] Subsequently, the swing mechanism moves to drive the assembly plate 2 to move along the guide rail once, and when the assembly plate 2 moves to the tail end of the guide rail, the circumferential fastening mechanism is triggered to clamp and fix the garbage can.

[0050] Finally, the orientation switching mechanism is moved for the second time, driving the telescopic plate 3 to retract into the assembly plate 2, during which the circumferential fastening mechanism is triggered again to release the garbage can;

[0051] In summary, through the cooperation between various mechanisms and components, the effective automatic demolding and transferring function of the garbage can is realized. Through the cooperation of the mechanical structure, the garbage can is clamped or released by the circumferential fastening mechanism at the appropriate movement position. Compared with the negative pressure suction method, the stability of the garbage can during the transferring process can be effectively guaranteed, and the problem of loss caused by the falling of the garbage can during the transferring process can be prevented. Therefore, the device has high reliability and is suitable for popularization and use.

[0052] In addition, during the work of the device, the clamping, releasing and transferring actions of the garbage can are realized through mechanical interlocking, which has high automation degree, does not need to use different sensing components to control the execution of each action respectively, has low failure rate, and can provide effective protection for the smooth production.

[0053] Please refer to Figure 6 , Figure 7 and Figure 8 again. The Maltese cross core mechanism includes a driving motor 21 installed on the base 1, a driving wheel 22 fixedly installed on the output shaft of the driving motor 21, and a first driven wheel 23 and a second driven wheel 24 rotatably installed on the base 1. The rotation axis of the first driven wheel 23 is connected with the orientation switching mechanism, and the rotation axis of the second driven wheel 24 is connected with the swinging mechanism.

[0054] It should be emphasized that, during each working process of the device, the orientation switching mechanism is moved twice, the swinging mechanism is moved once, and the movement of the swinging mechanism is located between the two movements of the orientation switching mechanism, that is, the first driven wheel 23 is rotated twice, and the second driven wheel 24 is rotated once. For this reason, the driving motor 21 should be a servo motor with a bidirectional driving output end, so that the working of the device can be continuous each time.

[0055] The orientation switching mechanism comprises a rolling fit structure mounted on the base 1 and a sliding transmission structure connected with the rolling fit structure, the rolling fit structure connects the rotating shaft of the first driven wheel 23, and the sliding transmission structure cooperates with the telescopic plate 3. The sliding transmission structure comprises two guide plates 37 fixedly mounted on the base 1 and a horizontal moving plate 30 slidingly arranged on the two guide plates 37, the bottom of the horizontal moving plate 30 is fixedly provided with two positioning cylinders 31, and the top of the telescopic plate 3 is fixedly provided with two positioning columns 32 matched with the positioning cylinders 31, and the top of the horizontal moving plate 30 is further provided with a strip-shaped sliding groove 3001 matched with the rolling fit structure. The rolling fit structure comprises two drive wheels 27 rotatably mounted on the base 1, a connecting piece 28 connecting the two drive wheels 27, and a first column 29 arranged on the connecting piece 28, the first column 29 extends into the strip-shaped sliding groove 3001 and is slidingly connected with the horizontal moving plate 30.

[0056] The connecting piece 28 is rollingly matched with the two drive wheels 27, and the rotating shaft of one of the drive wheels 27 is connected with the rotating shaft of the first driven wheel 23 through the first bevel gear set 26 and the first transmission belt 25.

[0057] In detail, a connecting shaft (not labeled in the figure) is further rotatably mounted on the base 1, and the first transmission belt 25 is used to connect the rotating shaft of the first driven wheel 23 and the connecting shaft.

[0058] Secondly, the first bevel gear set 26 comprises a first bevel gear fixedly mounted on the end of the connecting shaft and a second bevel gear fixedly mounted coaxially with the drive wheel 27, and the second bevel gear is engaged with the first bevel gear.

[0059] When the driving motor 21 drives the driving wheel 22 to drive the first driven wheel 23 to rotate for the first time, the rotating shaft of the first driven wheel 23 drives the drive wheel 27 to rotate through the first transmission belt 25 and the first bevel gear set 26, and then the connecting piece 28 drives the first column 29 to move, at this time, the movement track of the first column 29 is half of the pattern formed by the connecting piece 28, so that the telescopic plate 3 is driven to slide in the direction away from the assembly plate 2 by the positioning cylinder 31 and the positioning column 32, until the ring body 4 moves to the obliquely upper side of the garbage can.

[0060] When the driving motor 21 drives the driving wheel 22 to drive the first driven wheel 23 to rotate for the second time, at this time, the ring body 4 is loaded with a garbage can, the first column 29 moves again, so that the telescopic plate 3 slides towards the inside of the assembly plate 2, so that the position of the garbage can and the convex and concave mold is staggered, facilitating the release of stacking.

[0061] Please refer again to Figure 6 With Figure 9 , the swing mechanism includes a swing plate 33 rotatably mounted on the base 1, the swing plate 33 is provided with a first slot 3301 and a second slot 3302, one end of the assembly plate 2 towards the base 1 is fixed with a driven column 202, the driven column 202 penetrates the first slot 3301 and is connected with the swing plate 33, the second slot 3302 is connected with the circumferential drive assembly installed on the base 1, and the circumferential drive assembly connects the rotating shaft of the second driven wheel 24. The circumferential drive assembly includes a disc 34 rotatably mounted on the base 1 and a second column 36 fixedly installed at the eccentric position of the disc 34, the second column 36 extends into the second slot 3302 and is connected with the swing plate 33, and the disc 34 and the rotating shaft of the second driven wheel 24 are connected with the second transmission belt 35.

[0062] When the driving motor 21 drives the driving wheel 22 to drive the second driven wheel 24 to rotate, the rotating shaft of the second driven wheel 24 drives the disc 34 to rotate one circle through the second transmission belt 35, in this process, the second column 36 completes a circumferential motion and is connected with the swing plate 33 through the second slot 3302, so that the swing plate 33 completes a reciprocating swing, and the swing amplitude of the swing plate 33 is 90°, and in the swing process, the swing plate 33 is connected with the driven column 202 through the first slot 3301, and under the guidance of the guide rail, the assembly plate 2 completes a reciprocating motion along the guide rail, so that the garbage can is transferred from the convex mold.

[0063] Please refer again to Figure 1 , Figure 5 , Figure 8 , Figure 9 And Figure 10 , the circumferential fastening mechanism includes four groups of driven structures equidistantly arranged on the ring body 4 along the circumference and a sliding fit structure installed on the ring body 4. The driven structure includes a driven plate 5 slidingly arranged on the ring body 4 and a convex column 8 fixedly installed on the driven plate 5, the convex column 8 is connected with the sliding fit structure, and the end of the driven plate 5 away from the convex column 8 is provided with a clamping piece 9.

[0064] The sliding fit structure comprises a first limiting ring 6 rotatably mounted on the ring body 4 and a second limiting ring 7 fixedly connected with the first limiting ring 6 through a fastener 16, a gap is reserved between the first limiting ring 6 and the second limiting ring 7, and the convex column 8 extends into the gap and is in sliding connection with the first limiting ring 6 and the second limiting ring 7. The gap comprises a plurality of groups of connected arc segments 701, a first inclined segment 702 and a second inclined segment 703, the first limiting ring 6 and the second limiting ring 7 are each provided with a plurality of groups of locking structures connected with the ring body 4, the second limiting ring 7 is further provided with a ring of teeth, the teeth are in meshing engagement with a gear 17 rotatably mounted on the telescopic plate 3, the telescopic plate 3 is further rotatably mounted with a ratchet wheel 18, the rotation shafts of the gear 17 and the ratchet wheel 18 are connected through a second bevel gear set 38, and the assembly plate 2 and the base 1 are respectively fixedly mounted with a first ratchet plate 19 and a second ratchet plate 20 matched with the ratchet wheel 18.

[0065] Further, the second bevel gear set 38 comprises a fourth bevel gear fixedly mounted on the rotation shaft of the gear 17 and a third bevel gear fixedly mounted on the rotation shaft of the ratchet wheel 18, and the third bevel gear is in meshing engagement with the fourth bevel gear.

[0066] The locking structure comprises two guide rods 10 fixedly mounted on the first limiting ring 6 or the second limiting ring 7, a mounting seat 13 slidingly arranged on the two guide rods 10 and a limiting wheel 14 mounted on the mounting seat 13. The outer periphery of the guide rod 10 is further sleeved with a cylindrical spring 12, one end of the cylindrical spring 12 is connected with the mounting seat 13, the other end is connected with an annular protrusion 11 fixed to the guide rod 10, and the outer wall of the ring body 4 is further fixedly provided with two limiting protrusions 15 matched with the limiting wheel 14.

[0067] Specifically, in each working process of the device, the ratchet wheel 18 rotates twice, the first time (i.e. the ring body 4 moves to a position suitable for performing a clamping and fixing action on the garbage can) is caused by the second ratchet plate 20 to clamp and fix the garbage can, and the second time (i.e. when the telescopic plate 3 slides towards the inside of the assembly plate 2) is caused by the first ratchet plate 19 to release the garbage can.

[0068] When the ratchet wheel 18 rotates, its rotating shaft will drive the gear 17 to rotate through the second bevel gear set 38, and then the gear 17 drives the second limiting ring 7 and the first limiting ring 6 to rotate through the teeth on the second limiting ring 7, and then the convex column 8 cooperates with the gap (i.e. the gap between the first limiting ring 6 and the second limiting ring 7) to drive the convex column 8 to drive the driven plate 5 to give way, the driven plate 5 slides along the radial direction of the ring body 4, and the clamping part 9 clamps and fixes the garbage can or releases the garbage can.

[0069] When the first limiting ring 6 and the second limiting ring 7 rotate each time, the position of the limiting wheel 14 changes accordingly, and then switches between the different two limiting protrusions 15, and under the elastic support force of the cylindrical spring 12, the relative rotation between the first limiting ring 6, the second limiting ring 7 and the ring body 4 during the transfer process can be avoided, and the clamping and fixing state of the garbage can is terminated, therefore, the elastic potential energy of the cylindrical spring 12 needs to be large enough.

[0070] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0071] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A trash can injection molding auxiliary demolding code placement device, comprising a base (1), an "L" shaped guide rail arranged on the base (1), and a frame structure movably arranged on the base (1) through the guide rail; The frame structure comprises an assembly plate (2) movably arranged on the base (1) through the guide rail, a telescopic plate (3) slidably sleeved with the assembly plate (2), and a ring body (4) fixed to one end of the telescopic plate (3), and a circumferential fastening mechanism for circumferentially clamping and fixing the trash can is arranged on the ring body (4); characterized in that Further comprising: A Maltese cross core mechanism is installed on the side of the base (1), and is connected with a swing mechanism and an orientation switching mechanism, the swing mechanism can drive the assembly plate (2) to move along the guide rail to perform transfer and overturning action on the trash can in the ring body (4), and the orientation switching mechanism cooperates with the telescopic plate (3) and can drive the telescopic plate (3) to slide relative to the assembly plate (2); Wherein, the circumferential fastening mechanism is slid towards the inside of the assembly plate (2) to release the trash can; the circumferential fastening mechanism triggers in the latter part of the movement of the assembly plate (2) along the guide rail to clamp the trash can; The circumferential fastening mechanism comprises four sets of driven structures equidistantly arranged on the ring body (4) along the circumference and a sliding cooperation structure mounted on the ring body (4); The driven structure comprises a driven plate (5) slidably arranged on the ring body (4) and a protruding column (8) fixedly mounted on the driven plate (5), the protruding column (8) is connected with the sliding cooperation structure, and the end of the driven plate (5) away from the protruding column (8) is provided with a clamping piece (9); The sliding cooperation structure comprises a first limiting ring (6) rotatably mounted on the ring body (4) and a second limiting ring (7) fixedly connected with the first limiting ring (6) through a fastener (16), a gap is reserved between the first limiting ring (6) and the second limiting ring (7), the protruding column (8) extends into the gap and is slidably connected with the first limiting ring (6) and the second limiting ring (7); Wherein, the gap comprises a plurality of connected arc segments (701), a first inclined segment (702) and a second inclined segment (703), the first limiting ring (6) and the second limiting ring (7) are each provided with a plurality of locking structures connected with the ring body (4), a circle of teeth is further arranged on the second limiting ring (7), the teeth are engaged with a gear (17) rotatably mounted on the telescopic plate (3), a ratchet wheel (18) is further rotatably mounted on the telescopic plate (3), the rotation axes of the gear (17) and the ratchet wheel (18) are connected through a second bevel gear set (38), a first ratchet plate (19) and a second ratchet plate (20) matched with the ratchet wheel (18) are fixedly mounted on the assembly plate (2) and the base (1) respectively.

2. The injection molding assisted demolding indexing device for trash cans of claim 1, wherein, The Maltese cross core mechanism comprises a driving motor (21) mounted on the base (1), a driving wheel (22) fixedly mounted on the output shaft of the driving motor (21), and a first driven wheel (23) and a second driven wheel (24) rotatably mounted on the base (1). The rotation shaft of the first driven wheel (23) is connected with the azimuth switching mechanism, and the rotation shaft of the second driven wheel (24) is connected with the swing mechanism.

3. The injection molding assisted demolding indexing device for trash cans of claim 2, wherein, The azimuth switching mechanism comprises a rolling fit structure mounted on the base (1) and a sliding transmission structure connected with the rolling fit structure, the rolling fit structure is connected with the rotation shaft of the first driven wheel (23), and the sliding transmission structure is matched with the telescopic plate (3).

4. The injection molding assisted demolding indexing device for trash cans of claim 3, wherein, The sliding transmission structure comprises two guide plates (37) fixedly mounted on the base (1) and a horizontal moving plate (30) slidably arranged on the two guide plates (37), the bottom of the horizontal moving plate (30) is fixedly provided with two positioning cylinders (31), the top of the telescopic plate (3) is fixedly provided with two positioning columns (32) matched with the positioning cylinders (31), and the top of the horizontal moving plate (30) is further provided with a strip-shaped sliding groove (3001) matched with the rolling fit structure.

5. The injection molding assisted demolding indexing device for trash cans of claim 4, wherein, The rolling fit structure comprises two driving wheels (27) rotatably mounted on the base (1), a connecting piece (28) connected with the two driving wheels (27), and a first column (29) arranged on the connecting piece (28), the first column (29) extends into the strip-shaped sliding groove (3001) and is slidably connected with the horizontal moving plate (30). The connecting piece (28) is rolling matched with the two driving wheels (27), and the rotation shaft of one of the driving wheels (27) is connected with the rotation shaft of the first driven wheel (23) through a first bevel gear set (26) and a first transmission belt (25).

6. The injection molding assisted demolding indexing device for trash cans of claim 2, wherein, The swing mechanism comprises a swing plate (33) rotatably mounted on the base (1), the swing plate (33) is provided with a first groove body (3301) and a second groove body (3302), one end of the assembly plate (2) towards the base (1) is fixedly provided with a driven column (202), the driven column (202) penetrates through the first groove body (3301) and is slidably connected with the swing plate (33), the second groove body (3302) is connected with a circumferential driving assembly mounted on the base (1), and the circumferential driving assembly is connected with the rotation shaft of the second driven wheel (24).

7. The injection molding assisted demolding indexing device for trash cans of claim 6, wherein, The circumferential driving assembly comprises a disc (34) rotatably mounted on the base (1) and a second column (36) fixedly mounted at the eccentric position of the disc (34), the second column (36) extends into the second groove body (3302) and is slidably connected with the swing plate (33), and the disc (34) and the second driven wheel (24) are connected with the rotation shafts of each other through a second transmission belt (35).

8. The injection molding assisted demolding indexing device for trash cans of claim 1, wherein, The locking structure comprises two guide rods (10) fixedly installed on the first limiting ring (6) or the second limiting ring (7), a mounting seat (13) slidably arranged on the two guide rods (10), and a limiting wheel (14) mounted on the mounting seat (13); The outer periphery of the guide rod (10) is further sleeved with a cylindrical spring (12), one end of the cylindrical spring (12) is connected with the mounting seat (13), the other end is connected with an annular protrusion (11) fixed on the guide rod (10), and two limiting protrusions (15) matched with the limiting wheel (14) are further fixedly arranged on the outer wall of the ring body (4).

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