A molding injection equipment for producing spherical soft toys

Abstract

This invention discloses a molding injection equipment for producing spherical soft toys, relating to the field of injection molding machine technology. It includes a housing, inside which is an injection molding machine body. An injection system is fixedly installed at one end of the top of the injection molding machine body. A control device is fixedly installed on the upper surface of the injection molding machine body. A mold clamping system is located in the middle of the upper surface of the injection molding machine body, and a positioning rod is slidably connected inside the mold clamping system. Through the setting of the extrusion rod, the demolding operation of the spherical toy can be completed by extrusion after molding. The extrusion rod can be directly pushed for demolding via an electrically controlled telescopic rod, replacing traditional manual operation and significantly improving production efficiency. Furthermore, the design of the extrusion rod ensures that the force is evenly applied to the surface of the sphere during demolding, avoiding deformation or damage due to uneven local force. It also reduces the adhesion problem between the mold and the finished product, making it particularly suitable for spherical toys with complex shapes or high precision requirements.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, specifically to a molding injection molding equipment for producing spherical soft toys. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] In existing technology, after injection molding of spherical toys, demolding is required. If only the central ejector pin is used to apply force during demolding, the sphere will deform into an ellipse due to excessive local stress. This is because the single point of action of the central ejector pin causes the sphere to bear extremely high pressure in the contact area of ​​the ejector pin, while other areas lack support. The localized concentrated force will generate uneven stress distribution inside the sphere, causing the material near the contact point to undergo plastic deformation or elastic yielding, thus causing the spherical toy to deform and affecting the quality of the finished spherical toy.

[0004] To address this issue, we propose a molding injection equipment for producing spherical soft toys. Summary of the Invention

[0005] Technical problems to be solved

[0006] In view of this, and to address the shortcomings of the prior art, the present invention provides a molding injection equipment for the production of spherical soft toys, in order to solve the problems mentioned in the background art.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a molding injection equipment for producing spherical soft toys, comprising a housing, an injection molding machine body disposed inside the housing, an injection system fixedly installed at one end of the top of the injection molding machine body, a control device fixedly installed on the upper surface of the injection molding machine body, a mold clamping system disposed in the middle of the upper surface of the injection molding machine body, a positioning rod slidably connected inside the mold clamping system, a limit block fixedly installed on the outer surface of the end of the positioning rod away from the mold clamping system, an electrically controlled telescopic rod fixedly connected to the limit block, and the output shaft of the electrically controlled telescopic rod passing through and extending to the outside of the limit block, and also including an injection molding component disposed within the mold clamping system;

[0009] The injection molding assembly includes mold one and mold two, which are installed inside the mold clamping system. Mold one and mold two are fitted together, and each mold one and mold two have a hemispherical injection cavity. The two hemispheres together form a spherical injection cavity. A through groove is opened through the center of mold one. An extrusion rod is slidably connected to the center of mold one. A rack one is symmetrically slidably connected to the outer surface of one end of the extrusion rod. A meshing gear is engaged on the outer surface of the rack one end close to mold one. A rack two is engaged on the outer surface of the meshing gear away from the rack one end. A positioning ring is fixedly connected to the end of rack two away from the meshing gear. A positioning sleeve is rotatably sleeved on the outer surface of the positioning ring.

[0010] Preferably, a spiral groove is provided on one side of the positioning sleeve, a slider is slidably connected inside the spiral groove, a movable ring is fixedly connected to the end of the slider away from the spiral groove, a connecting rod is symmetrically fixedly connected to one side of the movable ring, and an annular cleaning block is rotatably connected to the end of the connecting rod away from the movable ring.

[0011] Preferably, one end of the extrusion rod is slidably connected to the through groove at the center of the mold, and rack one and rack two on the same side are centrally symmetrically arranged with reference to the center point of the meshing gear. The meshing gear is rotatably connected to the outer surface of the positioning sleeve, and rack two and positioning ring are slidably connected to the inside of the positioning sleeve.

[0012] Preferably, the positioning ring is rotatably connected to the outer surface of the moving ring, the moving ring and the connecting rod are slidably connected to the inside of the positioning sleeve, the moving ring and the connecting rod are slidably connected to the inside of the positioning sleeve, a rubber piston is provided on the outer surface of the annular cleaning block, and the annular cleaning block fits against the wall of the through groove opened in the center of the mold, and the annular cleaning block is slidably connected to the outer surface of the extrusion rod.

[0013] Preferably, it also includes auxiliary components disposed outside the extrusion rod;

[0014] The auxiliary components include a fixing ring fixedly connected to the outer surface of the extrusion rod. An auxiliary round rod is fixedly connected to the outer surface of the fixing ring on the side closer to the mold, with the center of the extrusion rod as a reference. A limit ring is slidably connected to the outer surface of the auxiliary round rod. A buffer spring is fixedly connected to the outer surface of the auxiliary round rod on the side closer to the fixing ring, with the center of the extrusion rod as a reference. A compression spring is fixedly connected to the side of the auxiliary round rod away from the buffer spring, with the center of the extrusion rod as a circular array.

[0015] Preferably, a circular hole is provided inside the mold, passing through the center of the mold. An auxiliary circular rod is slidably connected inside the circular hole. Both the buffer spring and the compression spring are sleeved on the outer surface of the auxiliary circular rod. The end of the buffer spring away from the limiting ring is fixedly connected to the outer surface of the fixed ring.

[0016] Preferably, the end of the rack furthest from the meshing gear is fixedly connected to the outer surface of the retaining ring.

[0017] Preferably, it also includes an air extraction component disposed outside mold one and mold two;

[0018] The air extraction assembly includes air cylinders symmetrically and fixedly installed on the outer surfaces of both sides of the mold. A piston rod is slidably connected inside each air cylinder, and a positioning spring is sleeved on the outer surface of the piston rod. A connecting air pipe is fixedly connected to the side of the air cylinder closest to the mold, and an exhaust pipe is fixedly connected to the outer surface of the air cylinder.

[0019] Preferably, one end of the piston rod passes through the air cylinder and extends to the outside of the air cylinder, and the end of the piston rod that passes through the air cylinder is fixedly connected to the outer surface of the mold. The positioning spring is set inside the air cylinder. Air passages are opened through both sides of the mold, and the end of the connecting air pipe away from the air cylinder is set inside the air passage.

[0020] Beneficial effects

[0021] Compared with the prior art, the present invention provides a molding injection equipment for producing spherical soft toys, which has the following beneficial effects:

[0022] By setting up the extrusion rod, the spherical toy can be demolded by extrusion after it has been formed. The extrusion rod can be directly pushed to demold by an electrically controlled telescopic rod, replacing the traditional manual operation and greatly improving production efficiency. In addition, the design of the extrusion rod can ensure that the force is evenly applied to the surface of the ball during demolding, avoiding deformation or damage caused by uneven local force. At the same time, it can reduce the problem of adhesion between the mold and the finished product, which is especially suitable for spherical toys with complex shapes or high precision requirements.

[0023] By incorporating auxiliary rods, limiting rings, buffer springs, and compression springs, the demolding process is achieved by applying pressure simultaneously to the four corners around the force point of the spherical toy during the extrusion process. The auxiliary rods apply pressure synchronously at the four corners, which, combined with the action of the central extrusion rod, forms a uniform demolding force field, preventing demolding failure (such as adhesion or jamming) due to uneven local force. At the same time, the multi-directional synchronous pressure can effectively overcome the friction between the mold and the sphere, making it especially suitable for high-precision or complex spherical toys (such as textured or hollowed-out structures). Furthermore, the buffer springs and compression springs can absorb the impact force at the moment of demolding, preventing damage to the mold or sphere due to rigid collisions, while also reducing noise and vibration during equipment operation.

[0024] By using the extrusion rod and four auxiliary round rods together, the auxiliary pressure at the four corners during the demolding process of the spherical toy can balance the concentrated force of the central extrusion rod, preventing the ball from deforming or stress concentration due to excessive force at a single point, ensuring the roundness and dimensional accuracy of the ball after demolding. At the same time, the auxiliary round rods apply pressure through multi-point contact, reducing local extrusion on the surface of the ball and reducing the risk of scratches or whitening.

[0025] By setting up the annular cleaning block, relative rotational friction can be achieved between it and the extrusion rod, thereby cleaning the extrusion rod and the through groove on the mold. The contact between the annular cleaning block and the extrusion rod can prevent impurities that are contaminated during the demolding process from sticking to the outer surface of the extrusion rod, thus avoiding affecting the demolding of the next spherical toy. At the same time, the continuous contact between the annular cleaning block and the through groove on the mold can prevent residues in the through groove from entering the surface of the sphere, which could lead to defects such as shrinkage marks, flash, or insufficient gloss. The real-time cleaning by the annular cleaning block can ensure the cleanliness of the mold cavity and guarantee product consistency.

[0026] By using an air cylinder and piston rod, the spherical toy is fixed in place, preventing it from shifting position during demolding. The air cylinder and piston rod provide a stable suction force through air pressure, ensuring that the spherical toy remains in the set position throughout the demolding process. This avoids lateral or longitudinal displacement caused by external forces (such as mold opening and closing vibrations or uneven demolding force). The fixed position also prevents the spherical toy from colliding with the mold cavity due to shaking during demolding, reducing the risk of surface scratches, dents, or edge damage. At the same time, for thin-walled, hollow, or insert-embedded spherical toys, the fixed position prevents local deformation or insert detachment due to uneven force during demolding. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention;

[0029] Figure 3 This is a schematic diagram showing the positional relationship of the positioning rod in this invention;

[0030] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0031] Figure 5 This is a schematic diagram showing the positional relationship of the fixing ring in this invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B;

[0033] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the air cylinder of the present invention;

[0034] Figure 8 This is a schematic diagram of the connection relationship at the auxiliary round rod of the present invention;

[0035] Figure 9 This is a schematic diagram of the internal structure of the mold of the present invention;

[0036] Figure 10 This is a schematic diagram of the internal structure of the positioning sleeve of the present invention;

[0037] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the structure at point C;

[0038] Figure 12 This is a schematic diagram of the connection relationship at the positioning sleeve of the present invention;

[0039] Figure 13 For the present invention Figure 12 Enlarged schematic diagram of the structure at point D.

[0040] In the diagram: 11. Housing; 12. Injection molding machine body; 13. Injection system; 14. Control device; 15. Mold clamping system; 16. Positioning rod; 17. Limiting block; 18. Electrically controlled telescopic rod;

[0041] 21. Mold 1; 22. Mold 2; 23. Extrusion rod; 24. Rack 1; 25. Meshing gear; 26. Rack 2; 27. Positioning ring; 28. Positioning sleeve; 2901. Spiral groove; 2902. Slider; 2903. Moving ring; 2904. Connecting rod; 2905. Annular cleaning block;

[0042] 31. Fixing ring; 32. Auxiliary round rod; 33. Limiting ring; 34. Buffer spring; 35. Compression spring;

[0043] 41. Air pump; 42. Piston rod; 43. Positioning spring; 44. Connecting air pipe; 45. Exhaust pipe. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Embodiments of the present invention

[0046] Please see Figures 1 to 13A molding injection equipment for producing spherical soft toys includes a housing 11, an injection molding machine body 12 inside the housing 11, an injection system 13 fixedly installed at one end of the top of the injection molding machine body 12, a control device 14 fixedly installed on the upper surface of the injection molding machine body 12, a mold clamping system 15 in the middle of the upper surface of the injection molding machine body 12, a positioning rod 16 slidably connected inside the mold clamping system 15, a limit block 17 fixedly installed on the outer surface of the end of the positioning rod 16 away from the mold clamping system 15, an electrically controlled telescopic rod 18 fixedly connected to the limit block 17, and the output shaft of the electrically controlled telescopic rod 18 passing through and extending to the outside of the limit block 17, and also includes an injection molding component disposed within the mold clamping system 15;

[0047] The injection molding assembly includes a first mold 21 and a second mold 22 disposed inside the mold clamping system 15. The first mold 21 and the second mold 22 fit together, and each of the first mold 21 and the second mold 22 has a hemispherical injection cavity. The two hemispheres together form a spherical injection cavity. A through groove is opened through the center of the first mold 21. An extrusion rod 23 is slidably connected to the center of the first mold 21. A rack 24 is symmetrically slidably connected to the outer surface of one end of the extrusion rod 23. The outer surface of the rack 24 near the first mold 21 is meshed with a meshing gear 25. The outer surface of the meshing gear 25 away from the rack 24 is meshed with a second rack 26. The end of the rack 26 away from the meshing gear 25 is fixedly connected to a positioning ring 27. A positioning sleeve 28 is rotatably sleeved on the outer surface of the positioning ring 27.

[0048] The positioning sleeve 28 has a spiral groove 2901 on one side inside. A slider 2902 is slidably connected inside the spiral groove 2901. A moving ring 2903 is fixedly connected to the end of the slider 2902 away from the spiral groove 2901. A connecting rod 2904 is symmetrically fixedly connected to one side of the moving ring 2903. An annular cleaning block 2905 is rotatably connected to the end of the connecting rod 2904 away from the moving ring 2903.

[0049] One end of the extrusion rod 23 is slidably connected to the through groove at the center of the mold 21. The rack 24 and rack 26 on the same side are centrally symmetrically arranged with reference to the center point of the meshing gear 25. The meshing gear 25 is rotatably connected to the outer surface of the positioning sleeve 28. The rack 26 and the positioning ring 27 are slidably connected to the inside of the positioning sleeve 28.

[0050] The positioning ring 27 is rotatably connected to the outer surface of the moving ring 2903. The moving ring 2903 and the connecting rod 2904 are slidably connected to the inside of the positioning sleeve 28. The moving ring 2903 and the connecting rod 2904 are slidably connected to the inside of the positioning sleeve 28. A rubber piston is provided on the outer surface of the annular cleaning block 2905, and the annular cleaning block 2905 fits against the wall of the through groove opened in the center of the mold 21. The annular cleaning block 2905 is slidably connected to the outer surface of the extrusion rod 23.

[0051] Among them, the compression rod 23 is located on the motion trajectory of the output shaft end of the electrically controlled telescopic rod 18, and the rack 26 is slidably connected to the positioning ring 27 in a horizontal state.

[0052] Further embodiments

[0053] Please see Figures 2 to 6 , Figure 8 and Figure 10 The molding injection equipment for producing spherical soft toys also includes auxiliary components located outside the extrusion rod 23;

[0054] The auxiliary components include a fixing ring 31 fixedly connected to the outer surface of the extrusion rod 23. An auxiliary round rod 32 is fixedly connected to the outer surface of the fixing ring 31 on the side closer to the mold 21, with the center of the extrusion rod 23 as a reference. A limit ring 33 is slidably connected to the outer surface of the auxiliary round rod 32. A buffer spring 34 is fixedly connected to the outer surface of the auxiliary round rod 32 on the side closer to the fixing ring 31, with the center of the extrusion rod 23 as a reference. A compression spring 35 is fixedly connected to the side of the auxiliary round rod 32 on the side away from the buffer spring 34, with the center of the extrusion rod 23 as a circular array.

[0055] Among them, a circular hole is opened through the center of the mold 21, the auxiliary circular rod 32 is slidably connected to the inside of the circular hole, the buffer spring 34 and the compression spring 35 are both sleeved on the outer surface of the auxiliary circular rod 32, and the end of the buffer spring 34 away from the limiting ring 33 is fixedly connected to the outer surface of the fixing ring 31.

[0056] Among them, the end of rack 24 away from meshing gear 25 is fixedly connected to the outer surface of fixed ring 31.

[0057] Among them, the auxiliary round rods 32 are arranged in a ring array outside the extrusion rod 23.

[0058] Further embodiments

[0059] Please see Figure 5 , Figure 7 and Figure 9 The molding injection equipment for producing spherical soft toys also includes a vacuum assembly located outside mold 1 21 and mold 2 22;

[0060] The air extraction assembly includes air cylinders 41 symmetrically fixedly installed on the outer surfaces of both sides of mold 21. Piston rods 42 are slidably connected through the inside of each air cylinder 41. Positioning springs 43 are sleeved on the outer surface of the piston rods 42. A connecting air pipe 44 is fixedly connected to the side of the air cylinder 41 closest to mold 21. An exhaust pipe 45 is fixedly connected to the outer surface of the air cylinder 41.

[0061] One end of the piston rod 42 passes through the air cylinder 41 and extends to the outside of the air cylinder 41. The piston rod 42 passes through the air cylinder 41 and is fixedly connected to the outer surface of the mold 22. The positioning spring 43 is set inside the air cylinder 41. Air passages are opened through both sides of the mold 21. The end of the connecting air pipe 44 away from the air cylinder 41 is set inside the air passage.

[0062] A one-way valve is installed inside the exhaust pipe 45.

[0063] The overall working process and principle of the above embodiments are as follows:

[0064] Workers place mold 1 (21) and mold 2 (22) for injection molding of spherical toys into the mold clamping system 15. Then, the mold clamping system 15 controls the mold 1 (21) and mold 2 (22) to interlock, ensuring a tight fit without gaps. Next, workers inject molten plastic into the interlocked mold 1 (21) and mold 2 (22) through the control device 14 and the injection system 13. After the molten plastic solidifies and forms inside the mold 1 (21) and mold 2 (22), the mold clamping system 15 is opened by the control device 14, causing the mold 1 (21) and mold 2 (22) to separate. Then, workers activate the electrically controlled telescopic rod 18 through the control device 14, causing the output shaft of the electrically controlled telescopic rod 18 to extend.

[0065] It should be noted that the injection system 13, control device 14, mold closing system 15 and electric telescopic rod 18 in the above process are all existing technologies, so they will not be described in detail here.

[0066] During the above process, since the extrusion rod 23 is located on the movement trajectory of the output shaft end of the electrically controlled telescopic rod 18, as the output shaft end of the electrically controlled telescopic rod 18 extends, the extrusion rod 23 will gradually come into contact with the output shaft end of the electrically controlled telescopic rod 18, and will be extruded as the output shaft end of the electrically controlled telescopic rod 18 continues to extend, moving towards the inside of the mold 21.

[0067] At this time, the fixed ring 31 fixedly connected to the extrusion rod 23 will move accordingly, thereby driving the rack 24 fixedly connected to the outer surface of the fixed ring 31 to move synchronously towards the inside of the mold 21. At the same time, since the rack 24 and the rack 26 are centrally symmetrically arranged with reference to the meshing gear 25, and both the rack 24 and the rack 26 are meshed with the meshing gear 25, as the rack 24 moves, the rotation of the meshing gear 25 will cause the rack 26 to move away from the mold 21 under the rotation of the meshing gear 25, thereby driving the moving ring 2903 fixedly connected to the rack 26 to move synchronously.

[0068] It should be noted that in the above process, the meshing gear 25 is rotatably connected to the positioning ring 27, and the rack 26 is horizontally slidably connected to the positioning ring 27. The positioning ring 27 is rotatably connected to the moving ring 2903. The positioning sleeve 28 has a spiral groove 2901 inside. The moving ring 2903 is slidably connected to the spiral groove 2901 through the slider 2902. Therefore, when the positioning ring 27 moves with the rack 26, it will drive the moving ring 2903 slidably connected to it to slide synchronously. Under the restriction of the slider 2902 and the spiral groove 2901, the moving ring 2903 will rotate while moving inside the positioning sleeve 28 under the image of the inclined groove wall of the slider 2902 and the spiral groove 2901, thereby driving the annular cleaning block 2905 connected to the moving ring 2903 through the connecting rod 2904 to rotate synchronously.

[0069] At this time, the piston set on the outer wall of the annular cleaning block 2905 will move synchronously until it is separated from the state of being in contact with the inside of the mold 1 21. It should be noted that when the annular cleaning block 2905 moves away from the mold 1 21, the extrusion rod 23 still moves towards the inside of the mold 1 21 in the extended state of the output shaft of the electric telescopic rod 18. That is, the movement states of the annular cleaning block 2905 and the extrusion rod 23 are opposite. As the extrusion rod 23 continues to move, the extrusion rod 23 will extrude the spherical toy that has solidified between the mold 1 21 and the mold 2 22, thereby completing the demolding of the spherical toy.

[0070] With the extrusion rod 23, the demolding operation of the spherical toy can be completed by extrusion after the spherical toy is formed. The extrusion rod 23 can be directly pushed to demold by the electric telescopic rod 18, replacing the traditional manual operation and greatly improving production efficiency. In addition, the design of the extrusion rod 23 can ensure that the force is evenly applied to the surface of the ball during demolding, avoiding deformation or damage caused by uneven local force. At the same time, it can reduce the adhesion problem between the mold and the finished product, which is especially suitable for spherical toys with complex shapes or high precision requirements.

[0071] It should be noted that during the above process, as the fixed ring 31 moves, the auxiliary round rods 32 fixedly connected in a ring array on the fixed ring 31 will also move. During the movement of the fixed ring 31 and the auxiliary round rods 32, the limiting ring 33 will move synchronously through the buffer spring 34. Then, through the movement of the limiting ring 33, the compression spring 35 set between the limiting ring 33 and the mold closing system 15 is squeezed. At the same time, the auxiliary round rods 32 will move synchronously towards the inside of the mold 21 under the action of the extrusion rod 23 until they contact the surface of the spherical toy formed inside the mold 21 and push the spherical toy synchronously to assist in the demolding of the spherical toy.

[0072] Since the auxiliary round rods 32 are arranged in a ring array outside the extrusion rod 23, when the extrusion rod 23 is aligned with the center of the spherical toy to complete the demolding operation, the auxiliary round rods 32 located outside the extrusion rod 23 will act on the surface of the spherical toy simultaneously. Furthermore, due to the compression and contraction of the compression spring 35 and the buffer spring 34, the elastic potential energy generated by the contraction of the compression spring 35 and the buffer spring 34 will act on the auxiliary round rods 32 and the spherical toy simultaneously through the limiting ring 33 and the fixing ring 31.

[0073] By setting up the auxiliary round rod 32, the limiting ring 33, the buffer spring 34 and the compression spring 35, during the demolding process of the extrusion rod 23 extruding the center position of the spherical toy, pressure is simultaneously applied to the four corners around the force point of the spherical toy to assist in demolding. The auxiliary round rod 32 applies pressure simultaneously at the four corners, and combined with the action of the central extrusion rod 23, a uniform demolding force field is formed, which avoids demolding failure (such as adhesion or jamming) due to uneven local force. At the same time, the multi-directional synchronous pressure can effectively overcome the friction between the mold and the ball, which is especially suitable for high-precision or complex spherical toys (such as textured, hollow structures, etc.). In addition, the buffer spring 34 and the compression spring 35 can absorb the impact force at the moment of demolding, avoid damage to the mold or the ball due to rigid collision, and reduce the noise and vibration of the equipment during operation.

[0074] By using the extrusion rod 23 and four auxiliary round rods 32 together, the auxiliary pressure at the four corners during the demolding process of the spherical toy can balance the concentrated force of the central extrusion rod 23, preventing the ball from deforming or stress concentration due to excessive force at a single point, ensuring the roundness and dimensional accuracy of the ball after demolding. At the same time, the auxiliary round rods 32 apply pressure through multi-point contact, reducing local extrusion on the surface of the ball and reducing the risk of scratches or whitening.

[0075] As the spherical toy is demolded, the staff once again uses the control device 14 to retract the output shaft of the electric telescopic rod 18. At the same time, the extrusion rod 23 and the fixing ring 31 lose the extrusion from the electric telescopic rod 18, and the buffer spring 34 and the compression spring 35 lose the pressure. They then quickly rebound under their own elasticity until they return to their initial state. Meanwhile, the auxiliary round rod 32, the fixing ring 31 and the limiting ring 33 move synchronously, which in turn drives the extrusion rod 23 to move in the opposite direction through the fixing ring 31. The extrusion rod 23 gradually returns to its initial position.

[0076] It should be noted that during the above process, as the extrusion rod 23 moves in the opposite direction, rack 24 will also move synchronously away from mold 21, thereby driving rack 26 to move closer to mold 21 through meshing gear 25. As rack 26 moves, positioning ring 27 will push moving ring 2903 to move closer to the inside of mold 21 inside positioning sleeve 28. During the movement of moving ring 2903, it will be restricted by slider 2902 and spiral groove 2901 and rotate synchronously inside positioning sleeve 28. At this time, driven by connecting rod 2904, annular cleaning block 2905 and piston set outside annular cleaning block 2905 will rotate synchronously, causing relative friction between the inside of annular cleaning block 2905 and the outer surface of extrusion rod 23, and rotational friction between piston and the groove wall of mold 21, cleaning the outer surface of extrusion rod 23 and the groove wall of mold 21. The above process will be repeated as the spherical toy demolding work proceeds.

[0077] By setting the annular cleaning block 2905, relative rotational friction can be achieved between it and the extrusion rod 23, thereby cleaning the extrusion rod 23 and the through groove on the mold 21. The contact between the annular cleaning block 2905 and the extrusion rod 23 can prevent impurities adhering to the outer surface of the extrusion rod 23 during the demolding process, thus avoiding affecting the demolding of the next spherical toy. At the same time, the continuous contact between the annular cleaning block 2905 and the through groove of the mold 21 can prevent residues in the through groove of the mold 21 from entering the surface of the sphere, resulting in defects such as shrinkage marks, flash, or insufficient gloss. The real-time cleaning of the annular cleaning block 2905 can ensure the cleanliness of the mold cavity and guarantee product consistency.

[0078] During the above process, as the demolding procedure proceeds, that is, as mold 1 21 and mold 2 22 separate from each other under the control of the mold closing system 15, the piston rod 42 fixedly connected to mold 2 22 will move synchronously inside the air cylinder 41 fixedly connected to mold 1 21. During the movement, the positioning spring 43 set inside the air cylinder 41 is compressed, thereby reducing the air pressure inside the air cylinder 41. Since the connecting air pipe 44 fixedly connected to one end of the air cylinder 41 extends into the mold 1 21, the movement of the piston rod 42 will draw gas between mold 1 21 and the spherical toy through the connecting air pipe 44. Due to the symmetrical arrangement of the connecting air pipe 44, the two ends of the spherical toy will be subjected to the suction force between the piston rod 42 and the air cylinder 41 during the demolding process, fixing the position of the spherical toy and preventing the spherical toy from loosening at the moment when mold 1 21 and mold 2 22 separate.

[0079] By setting up the air cylinder 41 and piston rod 42, the spherical toy is fixed to prevent the spherical toy from changing position at the moment of demolding. The air cylinder 41 and piston rod 42 provide a stable suction force through air pressure to ensure that the spherical toy always maintains the set position during the demolding process, avoiding lateral or longitudinal displacement caused by external forces (such as mold opening and closing vibration, uneven demolding force). The fixed position can prevent the spherical toy from colliding with the mold cavity due to shaking at the moment of demolding, reducing the risk of surface scratches, dents or edge damage. At the same time, for thin-walled, hollow or insert-embedded spherical toys, the fixed position can prevent local deformation or insert falling off due to uneven force during demolding.

[0080] It should be noted that the suction force between the air cylinder 41 and the piston rod 42 is relatively small and will not affect the extrusion of the spherical toy by the extrusion rod 23.

[0081] Meanwhile, as mold 1 21 and mold 2 22 approach each other, piston rod 42 will return to its initial state inside air cylinder 41. Furthermore, a one-way valve is installed in exhaust pipe 45, so the air cylinder 41 that was originally drawn into air cylinder 41 will be discharged through exhaust pipe 45, which will not affect the next use of air cylinder 41 and piston rod 42.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0083] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding injection equipment for producing spherical soft toys, comprising a housing (11), an injection molding machine body (12) disposed inside the housing (11), an injection system (13) fixedly installed at one end of the top of the injection molding machine body (12), a control device (14) fixedly installed on the upper surface of the injection molding machine body (12), a mold clamping system (15) disposed in the middle of the upper surface of the injection molding machine body (12), a positioning rod (16) slidably connected inside the mold clamping system (15), a limit block (17) fixedly installed on the outer surface of the end of the positioning rod (16) away from the mold clamping system (15), an electrically controlled telescopic rod (18) fixedly connected to the limit block (17), and the output shaft of the electrically controlled telescopic rod (18) passing through and extending to the outside of the limit block (17), characterized in that: It also includes injection molding components disposed within the mold clamping system (15); The injection molding assembly includes a mold 1 (21) and a mold 2 (22) disposed inside the mold clamping system (15). The mold 1 (21) and the mold 2 (22) fit together, and each of the mold 1 (21) and the mold 2 (22) has a hemispherical injection cavity. The two hemispheres together form a spherical injection cavity. A through groove is provided through the center of the mold 1 (21). An extrusion rod (23) is slidably connected to the center of the mold 1 (21). A toothed rack is symmetrically provided on the outer surface of one end of the extrusion rod (23). 24), the end of rack one (24) away from the meshing gear (25) is fixedly connected to the outer surface of the fixing ring (31), the outer surface of rack one (24) near mold one (21) is meshed with the meshing gear (25), the outer surface of the meshing gear (25) away from rack one (24) is meshed with rack two (26), the end of rack two (26) away from the meshing gear (25) is fixedly connected to the positioning ring (27), the outer surface of the positioning ring (27) is slidably sleeved with the positioning sleeve (28); A spiral groove (2901) is provided on one side of the positioning sleeve (28). A slider (2902) is slidably connected inside the spiral groove (2901). A moving ring (2903) is fixedly connected to the end of the slider (2902) away from the spiral groove (2901). A connecting rod (2904) is symmetrically fixedly connected to one side of the moving ring (2903). A ring cleaning block (2905) is rotatably connected to the end of the connecting rod (2904) away from the moving ring (2903). The positioning ring (27) is rotatably connected to the outer surface of the moving ring (2903). The moving ring (2903) and the connecting rod (2904) are slidably connected to the inside of the positioning sleeve (28). A rubber piston is provided on the outer surface of the annular cleaning block (2905). The annular cleaning block (2905) fits against the through groove wall opened in the center of the mold (21). The annular cleaning block (2905) is slidably connected to the outer surface of the extrusion rod (23). It also includes auxiliary components disposed outside the extrusion rod (23); The auxiliary components include a fixing ring (31) fixedly connected to the outer surface of the extrusion rod (23), an auxiliary round rod (32) fixedly connected to the outer surface of the fixing ring (31) near the mold (21) with the center of the extrusion rod (23) as a reference, the outer surface of the auxiliary round rod (32) is slidably connected to a limit ring (33), a buffer spring (34) fixedly connected to the outer surface of the auxiliary round rod (32) near the fixing ring (31) with the center of the extrusion rod (23) in a centrally symmetrical manner, and a compression spring (35) fixedly connected to the side of the auxiliary round rod (32) away from the buffer spring (34) with the center of the extrusion rod (23) in a circular array. It also includes air extraction components located outside mold one (21) and mold two (22); The air extraction assembly includes air cylinders (41) symmetrically fixedly installed on the outer surfaces of both sides of mold one (21). Piston rods (42) are slidably connected inside each air cylinder (41). A positioning spring (43) is sleeved on the outer surface of the piston rod (42). A connecting air pipe (44) is fixedly connected to the side of the air cylinder (41) closest to mold one (21). An exhaust pipe (45) is fixedly connected to the outer surface of the air cylinder (41).

2. The molding injection equipment for producing spherical soft toys according to claim 1, characterized in that: One end of the extrusion rod (23) is slidably connected to the through groove at the center of the mold (21). The racks (24) and (26) on the same side are centrally symmetrical with reference to the center point of the meshing gear (25). The meshing gear (25) is rotatably connected to the outer surface of the positioning sleeve (28), and the rack (26) is slidably connected to the inside of the positioning sleeve (28).

3. The molding injection equipment for producing spherical soft toys according to claim 1, characterized in that: A circular hole is provided inside the mold (21) around the center of the mold (21). An auxiliary circular rod (32) is sealed and slidably connected inside the circular hole. A buffer spring (34) and a compression spring (35) are both sleeved on the outer surface of the auxiliary circular rod (32). The end of the buffer spring (34) away from the limiting ring (33) is fixedly connected to the outer surface of the fixing ring (31).

4. The molding injection equipment for producing spherical soft toys according to claim 1, characterized in that: One end of the piston rod (42) passes through the air cylinder (41) and extends to the outside of the air cylinder (41). The piston rod (42) passes through the air cylinder (41) and is fixedly connected to the outer surface of the mold (22). The positioning spring (43) is set inside the air cylinder (41). Air passages are opened through both sides of the mold (21). The end of the connecting air pipe (44) away from the air cylinder (41) is set inside the air passage.

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