A self-ejection contactless turntable device for a multi-component injection molding machine

Abstract

The present invention discloses a self-ejection contactless turntable device for a multi-component injection molding machine, which relates to the technical field of turntables for two-color injection molding machines, and includes a turntable component, including a disk body, multiple groups of driving components, a mounting disk, and a connecting component; the outer edge of the disk body has an outer gear ring, and the inner gear ring is inside the disk body; the ejection component includes a ejector rod, multiple groups of ejection components, and a reset component; the basic component includes a movable mold plate, multiple groups of positioning rods, a mold, and a cylinder. The beneficial effects of the present invention include: the device significantly reduces the wear of the disk body during the jacking process by adopting rolling contact between the ball and the bottom surface of the disk body, thereby extending the service life of the equipment; at the same time, the ejector is used to lift the disk body during the rotation process, thereby ensuring the operational stability, and the self-ejection contactless reset is achieved through the reset component, thereby simplifying the operating process, enhancing the reliability and automation of the system, and reducing energy consumption and maintenance costs.

Description

Technical Field

[0001] The invention relates to the technical field of turntables for double-color injection molding machines, in particular to a self-ejection contactless turntable device for a multi-component injection molding machine. Background Art

[0002] During the rotation of the turntable, friction is a key factor affecting its performance, which is directly related to the stability, working efficiency and durability of the turntable. The turntable is mainly faced with two kinds of friction during operation: one is the rotational friction generated by contact with the template, the magnitude and direction of this friction determines the angular acceleration of the turntable; the other is the centrifugal force generated by the rotation, which points to the axis of the turntable and has an important impact on the stability and motion state of the turntable.

[0003] In current technology, the contact and friction between the turntable and the template during rotation may cause wear and damage, which not only shortens the service life of the product, but also reduces the matching accuracy of the mold, thereby affecting the qualified rate of the product. In order to solve this problem, some technical solutions propose to pad copper plates on the template to reduce wear, but although this method protects the template in the short term, it may still cause damage in long-term operation. In addition, although the use of pneumatic devices to lift the turntable can reduce friction, it increases the complexity and maintenance cost of the equipment, affecting the integration and economy of the equipment.

[0004] Therefore, developing a turntable rotation technology that can reduce friction and wear while maintaining device integration and economy is of great significance for improving the turntable's service life and product qualification rate. The development of this technology will help optimize the turntable's performance, reduce maintenance costs, and improve overall production efficiency. Summary of the invention

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a self-ejection contactless turntable device for a multi-component injection molding machine, which can solve the problem of wear caused by friction between the turntable and the template during the opening and closing rotation of the turntable mold.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: A self-ejection contactless turntable device for a multi-component injection molding machine, comprising a turntable component, including a turntable body, a plurality of driving components arranged around the turntable body, a mounting plate arranged at the bottom of the turntable body, and a connecting component arranged at the axis of the turntable body;

[0008] The outer edge of the disc body is provided with an outer gear ring, and an inner gear ring is provided on the inner side thereof;

[0009] The ejection component includes an ejector rod that is slidably disposed inside the mounting plate, a plurality of ejection members disposed between the mounting plate and the plate body, and a reset member disposed at the bottom of the ejection member;

[0010] The basic components include a movable template, a plurality of positioning rods arranged around the movable template, a mold arranged at the front end of the disk body, and a cylinder arranged at the rear end of the movable template.

[0011] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, wherein: the driving member includes a gear cylinder hinged on the peripheral side of the positioning rod, a washer arranged on the top of the gear cylinder, and a pressing cap arranged on the top of the washer;

[0012] A pressing end is provided on the inner side of the pressing cap, and a gap is formed between the pressing end and the disc body.

[0013] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, wherein: the ejector comprises a connecting gear meshing with the inner gear ring, a connecting ring arranged at the bottom of the connecting gear, a driving ring arranged at the bottom of the connecting ring, and an ejector column arranged on the inner side of the driving ring;

[0014] An inner cavity is also provided on the inner side of the bottom of the disk body, and the end of the top column can lift the inner cavity.

[0015] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine described in the present invention, the drive ring includes a plurality of adsorption blocks embedded in the circumference of its bottom, a plurality of repulsion blocks arranged on the top of the adsorption blocks, and a drive groove arranged on the inner side of the drive ring.

[0016] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, wherein: the ejector column includes a ball movably connected to the top thereof, and a slot hole arranged on one side of the bottom thereof;

[0017] The slot hole is movably sleeved with a clamping block;

[0018] The clamping block matches with the driving slot.

[0019] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, the reset member includes an L-shaped block arranged at the bottom of the ejector column and an elastic member arranged at the end of the L-shaped block.

[0020] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, wherein: a plurality of groups of movable grooves are arranged in a circumferential array on the end surface of the mounting plate, and a limit seat for fixing the ejector;

[0021] The L-shaped block is movably embedded in the movable groove.

[0022] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine described in the present invention, the L-shaped block includes an arc plate extending on the outside of the mounting plate, a narrow plate connected to the arc plate, and a bevel block arranged at the end of the other side of the narrow plate.

[0023] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, wherein: a clamping end is provided at the bottom of the ejector column, and the clamping end is radially fixedly clamped in the limit seat;

[0024] The bottom of the clamping end is an inclined surface and fits with the inclined surface block.

[0025] As a preferred solution of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention, wherein: the turntable body further includes a convex plate arranged at the bottom thereof;

[0026] The convex plate is composed of grooves symmetrical on two sides and convex blocks symmetrical on two sides;

[0027] After the convex disc rotates, the convex block can be matched with the arc plate.

[0028] Beneficial effects of the present invention: The device significantly reduces the wear of the disc during the lifting process by adopting rolling contact between the ball and the bottom surface of the disc, thereby extending the service life of the equipment; at the same time, the ejector is used to lift the disc during the rotation process, thereby ensuring the operating stability, and the reset part realizes self-ejection and contactless reset, thereby simplifying the operating process, enhancing the reliability and automation of the system, reducing energy consumption and maintenance costs, and ultimately improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a side cross-sectional schematic diagram of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention.

[0031] Figure 2 It is a schematic diagram of the installation of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention.

[0032] Figure 3 For the present invention Figure 1 Schematic diagram of the cross-section of the driving component structure at point A in FIG.

[0033] Figure 4 For the present invention Figure 1 Schematic diagram of the cross-section of the ejector structure at point B in the figure.

[0034] Figure 5 It is a schematic diagram of an isometric cross-sectional structure of the ejector structure of the present invention.

[0035] Figure 6 For the present invention Figure 1 Schematic diagram of the cross-section of the reset component structure at C in FIG.

[0036] Figure 7 It is a front cross-sectional schematic diagram of the self-ejection contactless turntable device of the multi-component injection molding machine of the present invention.

[0037] In the figure: 1, turntable component; 11, disk body; 12, driving member; 13, mounting plate; 14, connecting member; 2, ejector component; 21, ejector rod; 22, ejector member; 23, reset member; 3, base component; 31, movable template; 32, positioning rod; 33, mold; 34, cylinder; 111, outer gear ring; 112, inner gear ring; 113, inner cavity; 114, convex plate; 121, gear cylinder; 122, gasket; 123, pressing cap; 131, movable groove; 132, limit Seat; 1141, groove; 1142, protrusion; 1231, pressing end; 221, connecting gear; 222, connecting ring; 223, driving ring; 224, top column; 231, L-shaped block; 232, elastic member; 2231, adsorption block; 2232, repulsion block; 2233, driving groove; 2241, ball bearing; 2242, slot hole; 2243, snap-on end; 2311, arc plate; 2312, narrow plate; 2313, inclined block; M, gap; N, snap-on block. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Example 1, reference Figure 1 to Figure 3 , which is the first embodiment of the present invention, and provides a self-ejection contactless turntable device for a multi-component injection molding machine, comprising a turntable component 1, including a turntable body 11, a plurality of driving components 12 arranged around the turntable body, a mounting plate 13 arranged at the bottom of the turntable body 11, and a connecting component 14 arranged at the axis of the turntable body 11;

[0042] The outer edge of the disc body 11 is provided with an outer gear ring 111 and an inner gear ring 112 provided on the inner side thereof;

[0043] The ejection component 2 includes an ejector rod 21 that penetrates and slides inside the mounting plate 13, a plurality of ejection members 22 that are disposed between the mounting plate 13 and the plate body 11, and a reset member 23 that is disposed at the bottom of the ejection member 22;

[0044] The basic component 3 includes a movable platen 31 , a plurality of positioning rods 32 arranged around the movable platen 31 , a mold 33 arranged at the front end of the disk body 11 , and a cylinder 34 arranged at the rear end of the movable platen 31 .

[0045] Furthermore, the driving member 12 includes a gear cylinder 121 hinged on the peripheral side of the positioning rod 32, a washer 122 disposed on the top of the gear cylinder 121, and a pressing cap 123 disposed on the top of the washer 122;

[0046] A pressing end 1231 is formed on the inner side of the pressing cap 123 , and a gap M is formed between the pressing end 1231 and the disk body 11 .

[0047] It should be noted that if Figure 1 and Figure 2As shown, a set of turntable components 1 are installed on the end surface of the movable template 31, and four sets of ejection components 2 in a circumferential array are installed at the bottom of the turntable component 1. The ejection components 2 will automatically eject the disk body 11 in the turntable component 1 by a certain distance under the rotation of the turntable component 1, thereby reducing the contact with the movable template 31 at the bottom, thereby avoiding the friction loss between the disk body 11 and the movable template 31 when the disk body 11 rotates. A set of mounting disks 13 are installed at the bottom of the disk body 11, and the mounting disks 13 and the movable template 31 are fixedly connected, so that the disk body 11 is not directly connected to the movable template 31. The disk surface of the mounting disk 13 is a cube, and a set of driving members 12 are arranged on the corners of the four sides. The four sets of driving members 12 clamp the disk body 11 in the middle and can simultaneously drive the disk body 11 to rotate. The disk body 11 is a disk body shape with a concave bottom, which reduces the contact area with the mounting disk 13.

[0048] Preferably, an outer ring gear 111 is welded on the outer edge of the disc body 11, and the outer ring gear 111 transmits kinetic energy through the gear meshing with the driving member 12. A circle of inner ring gear 112 is also welded on the inner ring wall of the disc body 11, and the inner ring gear 112 also drives the four groups of ejection components 2 at the bottom of the disc body 11 to lift the disc body 11 through the gear meshing with the connecting gear 221. After the disc body 11 rotates a quarter of a turn, the bottom support of the ejection component 22 by the reset component 23 can be released, allowing the ejection component 22 to fall automatically, and then the disc body 11 falls, ensuring that the disc body 11 does not directly contact the movable plate 31 during the rotation process, and also ensuring the parallelism between the rotating disc and the movable plate, as well as the mold matching accuracy.

[0049] Better, such as Figure 3 As shown, the positioning rod 32 is set through the corner of the mounting plate 13, and the gear cylinder 121 is fixedly sleeved on the rod body of the positioning rod 32. One side of the gear cylinder 121 is meshed with the outer gear ring 111 on the outside of the plate body 11, so that the outer gear ring 111 can drive the plate body 11 to rotate normally, completing the opening and closing conversion of the mold. The gear cylinder 121 can be driven to rotate by a servo motor. A set of washers 122 are sleeved on the end face of the gear cylinder 121, and the extension of the plate body 11 can just pad one side of the washer 122. The washer 122 can be a copper sheet to reduce wear. A set of pressing caps 123 are sleeved above the washer 122. There is an opening on one side of the pressing cap 123, and the opening facilitates the exposed gear cylinder 121 to mesh with the outer gear ring 111 of the plate body 11.

[0050] Preferably, one side of the pressing cap 123 is provided with an opening, the opening being the pressing end 1231, and there is a certain gap M between the pressing end 1231 and the upper end surface of the disc body 11, the gap M being the space where the disc body 11 can move after being lifted. A set of connecting members 14 are connected to the middle bearing between the mounting disc 13 and the disc body 11, the connecting member 14 is of prior art, and can be any rotating shaft body, which can ensure that the disc body 11 can be smoothly installed on the end surface of the mounting disc 13. The ejector rod 21 runs through the mounting disc 13 and the disc body 11, which can facilitate the disc body 11 to complete the task of ejecting and demolding the product.

[0051] When in use, the device, driven by the servo motor, can rotate the four sets of gear cylinders 121 around the disc body 11, thereby rotating the disc body 11 to complete the opening and closing conversion of the mold. During the rotation of the disc body 11, the ejector 22 lifts the disc body 11 to a certain height, and its height does not exceed the height of the gap M, ensuring that the disc body 11 does not contact the mounting disc 13 during the rotation. In addition, the outer edge of the disc body 11 is limited to the outside of the mounting disc 13 by the pressing caps 123 at the four corners and the connecting piece 14, avoiding the original embedded installation in the mounting disc 13, which can facilitate installation and disassembly.

[0052] In summary, the device significantly reduces the wear of the disk body during the lifting process and prolongs the service life of the equipment by adopting the rolling contact between the ball 2241 and the bottom surface of the disk body 11; at the same time, the ejector 22 is used to lift the disk body 11 during the rotation process, thereby ensuring the operational stability, and the reset member 23 is used to realize the contactless reset by self-ejection, thereby simplifying the operating process, enhancing the reliability and automation of the system, reducing energy consumption and maintenance costs, and ultimately improving production efficiency and product quality.

[0053] Example 2, reference Figure 1 to Figure 7 , which is the second embodiment of the present invention, and is different from the first embodiment in that: it also includes an ejector 22 including a connecting gear 221 meshing with the inner gear ring 112, a connecting ring 222 disposed at the bottom of the connecting gear 221, a driving ring 223 disposed at the bottom of the connecting ring 222, and an ejector column 224 disposed inside the driving ring 223;

[0054] An inner cavity 113 is further defined on the inner side of the bottom of the disk body 11 , and the end of the top column 224 can lift up the inner cavity 113 .

[0055] It should be noted that if Figure 4As shown, four groups of mounting holes are provided on the end face diagonal line of the mounting plate 13, and a group of ejector 22 can be fixedly sleeved in each mounting hole, so that the ejector 22 is always meshed on one side of the inner gear ring 112 of the plate body 11. The connecting gear 221 is meshed with the inner gear ring 112, and the thickness of the connecting gear 221 is smaller than the thickness of the inner gear ring 112, so as to ensure that the connecting gear 221 can still maintain the meshing between the gears when sliding up and down. A group of connecting rings 222 are connected to the key groove at the bottom of the connecting gear 221, and a group of driving rings 223 are also connected to the key groove at the bottom of the connecting ring 222. The driving ring 223 can always maintain a radial limit connection with the connecting gear 221 under the connection action of the connecting ring 222. A group of top columns 224 are sleeved in the tube of the driving ring 223, and the top columns 224 are cylindrical, which can realize the upward movement under the rotation of the driving ring 223, thereby lifting the plate body 11.

[0056] Furthermore, the driving ring 223 includes a plurality of adsorption blocks 2231 embedded in the circumference of the bottom thereof, a plurality of repulsion blocks 2232 disposed on the top of the adsorption blocks 2231 , and a driving groove 2233 disposed on the inner side of the driving ring 223 .

[0057] Furthermore, the top column 224 includes a ball 2241 movably engaged with the top thereof, and a slot 2242 disposed on one side of the bottom thereof;

[0058] The slot 2242 is movably sleeved with the clamping block N;

[0059] The clamping block N matches with the driving slot 2233 .

[0060] It should be noted that if Figure 5 As shown, a threaded driving groove 2233 is provided on the inner wall surface of the driving ring 223, and a group of clamping blocks N are embedded and movably engaged on one side of the column body of the top column 224. When the driving ring 223 rotates, the top column 224 cannot rotate due to the radial limit of the limit seat 132, and the threaded driving groove 2233 inside the driving ring 223 will form an upward rotational force, thereby lifting the clamping block N and the top column 224 engaged on the surface of the driving groove 2233. A group of balls 2241 are rolled and embedded on the upper end surface of the top column 224, and the balls 2241 can slide inside the top column 224. This makes the top column 224 rise, and the balls 2241 on its end surface will directly contact the bottom end surface of the disk body 11 instead of the top column 224, and the friction between the two is minimized through rolling contact, reducing friction loss.

[0061] Better, such as Figure 5As shown, the upper and lower ends of the cylinder of the driving ring 223 are provided with a circle of placement grooves in a circumferential array, and an adsorption block 2231 or a repulsion block 2232 is embedded in the placement groove. The adsorption block 2231, the repulsion block 2232, and the clamping block N can all be magnets. There is an attraction between the adsorption block 2231 and the clamping block N, and there is a repulsion between the repulsion block 2232 and the clamping block N. The adsorption block 2231 installed at the bottom of the driving ring 223 and the clamping block N attract each other, while the repulsion block 2232 installed at the top of the driving ring 223 and the clamping block N repel each other. The clamping block N is slidably connected in the slot 2242 at the bottom of the top column 224. When the clamping block N is at the bottom of the driving slot 2233, it will be attracted by the adsorption block 2231, sucked out in the slot 2242, and clamped in the driving slot 2233. When the engaging block N comes to the horizontal space where the repelling block 2232 is placed under the action of the driving groove 2233, the repelling action of the repelling block 2232 will push the engaging block N into the slot 2242, causing it to retract into the slot 2242 and no longer engage with the driving groove 2233, eventually causing the top column 224 to fall back, thereby releasing the lifting effect on the disk body 11.

[0062] Furthermore, the restoring member 23 includes an L-shaped block 231 disposed at the bottom of the top column 224 , and an elastic member 232 disposed at the end of the L-shaped block 231 .

[0063] Furthermore, a plurality of movable grooves 131 and a limit seat 132 for fixing the ejector 22 are provided in a circumferential array on the end surface of the mounting plate 13;

[0064] The L-shaped block 231 is movably embedded in the movable groove 131 .

[0065] Furthermore, the L-shaped block 231 includes an arc plate 2311 extending outside the mounting plate 13 , a narrow plate 2312 connected to the arc plate 2311 , and a slope block 2313 disposed at the end of the other side of the narrow plate 2312 .

[0066] Furthermore, a clamping end 2243 is provided at the bottom of the top column 224, and the clamping end 2243 is radially fixedly clamped in the limiting seat 132;

[0067] The bottom of the clamping end 2243 is an inclined surface and fits with the inclined surface block 2313 .

[0068] It should be noted that if Figure 6 and Figure 7 As shown, the reset member 23 can restore the ejector 22 to its original position when the disk body 11 rotates a quarter of a cycle. Figure 4The reset member 23 is composed of an L-shaped block 231 and an elastic member 232. Four movable grooves 131 are provided in a circular array on the diagonal line of the end surface of the mounting plate 13, so that the L-shaped block 231 can slide smoothly on the diagonal line of the mounting plate 13, thereby releasing the bottom support of the top column 224. The four groups of limit seats 132 extending at the corresponding positions of the mounting plate 13 can effectively support and limit the drive ring 223 without hindering the rotation of the drive ring 223. The top column 224 can slide freely up and down without being restricted by the drive ring 223.

[0069] Preferably, one side of the bottom of the L-shaped block 231 is a sloped block 2313, and the bottom of the clamping end 2243 is also a sloped surface, and the two slopes are fitted together. The front end of the sloped block 2313 is a narrow plate 2312, so that the top column 224 can slide down smoothly without the resistance of the sloped block 2313. The arc plate 2311 extending upward from the narrow plate 2312 will be exposed on the outside of the installation plate 13 and located in the inner cavity 113 of the plate body 11. The elastic member 232 on one side of the sloped block 2313 can reset the sloped block 2313, and the elastic member 232 can be a compression spring.

[0070] Furthermore, the disc body 11 further includes a convex disc 114 disposed at the bottom thereof;

[0071] The convex plate 114 is composed of two symmetrical grooves 1141 and two symmetrical protrusions 1142;

[0072] After the convex disc 114 rotates, the protrusion 1142 can be matched with the arc plate 2311.

[0073] It should be noted that a convex disc 114 extends downward from the axis of the inner cavity 113 at the bottom of the disk body 11, and the convex disc 114 is a four-cornered convex circle, and the two sides thereof are symmetrically concave as grooves 1141, and the other two sides are symmetrically convex as bumps 1142. The groove 1141 cannot contact the arc plate 2311 during the rotation process, while the bump 1142 can contact the arc plate 2311 during the rotation process, and can push the arc plate 2311 outward along the movable groove 131, push the entire L-shaped block 231 outward, and make the inclined surface of the clamping end 2243 and the inclined surface block 2313 slide on the inclined surface, and finally make the top column 224 fall. The area occupied by the bump 1142 is much smaller than the area of ​​the groove 1141, so that most of it is between the grooves 1141 during the rotation process of the disk body 11, and does not trigger the movement of the arc plate 2311.

[0074] When in use, in the initial state, such as Figure 4 and Figure 6As shown. When the disk body 11 does not rotate, the ejector 22 at the bottom of the disk body 11 does not eject the disk body 11. The arc plate 2311 is opposite to the groove 1141, and the protrusion 1142 cannot squeeze the arc plate 2311, so that the elastic member 232 ejects the L-shaped block 231, allowing the inclined block 2313 to contact the bottom of the clamping end 2243, providing support for the bottom of the top column 224. The clamping block N on the embedded side of the top column 224 will be clamped in the driving groove 2233. When the gear cylinder 121 drives the disk body 11 to rotate with a period of one-quarter circle, the connecting gear 221 on the inner side of the disk body 11 will also rotate accordingly. The rotation of the connecting gear 221 will drive the driving ring 223 at its bottom to rotate, and then lift the top column 224 upward under the rotation, so that the ball 2241 directly acts on the surface of the disk body 11 to lift it. This process uses the rotation of the ball bearing 2241 at the bottom of the disk body 11 to reduce the wear of the disk body 11. During the rotation of the disk body 11, the driving ring 223 will always drive the top column 224 to move upward, and under the sliding connection between the clamping end 2243 at the bottom of the top column 224 and the inclined block 2313 of the L-shaped block 231, and the elasticity of the elastic member 232, it can prevent the top column 224 from continuously rising and causing excessive rise, thereby preventing the disk body 11 from hitting the bottom of the pressing cap 123. When the top column 224 reaches the highest position of the driving ring 223, the clamping block N will be retracted into the inner side of the top column 224 under the repulsion of the repulsion block 2232, and the connection between the top column 224 and the driving groove 2233 will be released, thereby causing the top column 224 to fall and the disk body 11 to fall back. When the disk body 11 is about to finish rotating, the protrusion 1142 will contact the arc plate 2311, squeezing the arc plate 2311 outward in the axial direction of the mounting disk 13, and then pushing the L-shaped block 231 outward along the movable groove 131, compressing the elastic member 232, and causing the bottom clamping end 2243 of the top column 224 to fall back onto the narrow plate 2312, causing it to fall back to the lowest point of the driving ring 223. When the disk body 11 enters the next quarter cycle of rotation, the protrusion 1142 is misaligned with the arc plate 2311 due to the rotation, causing the L-shaped block 231 to rebound again, pushing the top column 224 back, and during the rising process of the top column 224, the adsorption block 2231 will re-adsorb the clamping block N in the driving groove 2233 to complete the clamping action, and then the disk body 11 will be lifted up again under rotation.

[0075] In summary, the device realizes the smooth rotation of the disc body 11 by setting the outer gear ring 111 on the outer edge of the disc body 11 and meshing with the gear cylinder 121 in the driving member 12. At the same time, the inner gear ring 112 is meshed with the connecting gear 221 of the ejector 22 to drive the ejector 22 to lift the disc body 11, reducing the direct contact between the disc body 11 and the dynamic mold plate 31, thereby significantly reducing the friction and wear during the rotation process and extending the service life of the equipment. In addition, the ejector 22 and the reset member 23 enable the disc body 11 to automatically reset after rotating a quarter of a turn, ensuring the stability of the disc body 11 in different working positions and the mold matching accuracy. The gap M between the pressing cap 123 and the disc body 11 allows the ejector 22 to lift the disc body 11 to a certain height, further avoiding the direct contact between the disc body 11 and the mounting disc 13, and improving the reliability and operation efficiency of the system. The device not only simplifies the installation and disassembly process, but also improves the continuity of production and product quality by reducing wear and friction, reduces maintenance costs, and ultimately achieves a dual improvement in production efficiency and economic benefits.

[0076] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A self-ejection contactless turntable device for a multi-component injection molding machine, characterized in that: include, A turntable component (1) comprises a turntable body (11), a plurality of driving components (12) arranged around the turntable body (11), a mounting plate (13) arranged at the bottom of the turntable body (11), and a connecting component (14) arranged at the axis of the turntable body (11); The outer edge of the disk body (11) is provided with an outer gear ring (111), and an inner gear ring (112) is provided on the inner side thereof; An ejection component (2) comprises an ejector rod (21) which penetrates and slides inside the mounting plate (13), a plurality of ejection components (22) which are arranged between the mounting plate (13) and the plate body (11), and a reset component (23) which is arranged at the bottom of the ejection components (22); A basic component (3) comprising a movable platen (31), a plurality of positioning rods (32) arranged around the movable platen (31), a mold (33) arranged at the front end of the plate body (11), and a cylinder (34) arranged at the rear end of the movable platen (31); The ejector (22) comprises a connecting gear (221) meshing with the inner gear ring (112); A connecting ring (222) disposed at the bottom of the connecting gear (221), a driving ring (223) disposed at the bottom of the connecting ring (222), and a top column (224) disposed on the inner side of the driving ring (223); An inner cavity (113) is also provided on the inner side of the bottom of the disk body (11), and the end of the top column (224) can lift the inner cavity (113); The driving ring (223) comprises a plurality of groups of adsorption blocks (2231) embedded in the circumference of the bottom thereof, a plurality of groups of repulsion blocks (2232) arranged on the top of the adsorption blocks (2231), and a driving groove (2233) arranged on the inner side of the driving ring (223); The reset member (23) comprises an L-shaped block (231) disposed at the bottom of the top column (224), and an elastic member (232) disposed at the end of the L-shaped block (231); The top column (224) comprises a ball (2241) movably engaged with the top thereof, and a slot (2242) arranged on one side of the bottom thereof; The slot (2242) is movably sleeved with a clamping block (N); The clamping block (N) cooperates with the driving groove (2233); A plurality of movable grooves (131) are arranged in a circumferential array on the end surface of the mounting plate (13), as well as a limiting seat (132) for fixing the ejector (22); The L-shaped block (231) is movably embedded in the movable groove (131).

2. The self-ejection contactless turntable device for a multi-component injection molding machine according to claim 1, characterized in that: The driving member (12) comprises a gear cylinder (121) hinged on the circumference of the positioning rod (32), a washer (122) arranged on the top of the gear cylinder (121), and a pressing cap (123) arranged on the top of the washer (122); A pressing end (1231) is provided on the inner side of the pressing cap (123), and a gap (M) is formed between the pressing end (1231) and the disk body (11).

3. The self-ejection contactless turntable device for a multi-component injection molding machine according to claim 2, characterized in that: The L-shaped block (231) comprises an arc plate (2311) extending outside the mounting plate (13), a narrow plate (2312) connected to the arc plate (2311), and a slope block (2313) arranged at the end of the other side of the narrow plate (2312).

4. The self-ejection contactless turntable device for a multi-component injection molding machine according to claim 3, characterized in that: A clamping end (2243) is provided at the bottom of the top column (224), and the clamping end (2243) is radially fixedly clamped in the limiting seat (132); The bottom of the clamping end (2243) is an inclined surface, and fits with the inclined surface block (2313).

5. The self-ejection contactless turntable device for a multi-component injection molding machine according to claim 4, characterized in that: The disk body (11) further comprises a convex disk (114) arranged at the bottom thereof; The convex disc (114) comprises grooves (1141) symmetrical on two sides thereof, and convex blocks (1142) symmetrical on two sides thereof; After the convex disc (114) rotates, the convex block (1142) can be matched with the arc plate (2311).

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