An injection mold for toy production using degradable raw materials

Abstract

The invention discloses an injection mold for producing toys made of degradable raw materials, which belongs to the technical field of injection molds. The mold comprises a main shaft rod, an injection tube, an insulation cylinder and a diverter assembly. The injection tube is arranged on a base and coaxially assembled with the main shaft rod. The insulation cylinder is fixedly arranged on the base. A shaft ring is rotatably arranged at one end of the insulation cylinder. A conical shell is arranged at the other end of the insulation cylinder. The conical shell fits the end of the injection tube and is connected with the injection tube. The diverter assembly comprises a diverter bucket, which is movably arranged inside the insulation cylinder and fixedly connected to the main shaft rod. The invention provides an insulation cylinder for insulating molten material between the injection tube and a mold base, so that the material can be continuously stirred in the insulation chamber before injection. This can not only evenly disperse heat for the material to avoid local over-temperature degradation, but also avoid local cooling and hardening caused by uneven temperature in the chamber.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molds, and in particular relates to an injection mold for producing toys made of degradable raw materials. Background Art

[0002] Injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. In order to ensure the molding accuracy of injection molds for degradable plastics, the radial temperature control accuracy of the injection molding machine barrel must be improved.

[0003] The biodegradable plastic injection molding machine needs to be equipped with a low residence time plasticizing device. Because biodegradable plastics are easily degraded at high temperatures, it is necessary to reduce the residence time of the material at high temperatures to avoid problems such as gel, black spots or yellowing caused by material degradation. If the temperature is relatively low, it will cause uneven plasticizers in the plastic particles, causing equipment wear or damage. If the temperature is relatively high, the polymer plastic will decompose, resulting in loose tissue, and after carbonization, it will be wrapped around the inner wall of the barrel, seriously affecting product quality. Summary of the invention

[0004] In view of the shortcomings of the prior art, an object of the embodiments of the present invention is to provide an injection mold for toy production made of degradable raw materials to solve the problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An injection mold for producing toys made of degradable raw materials, comprising a base assembly, the base assembly comprising a base, a drive box and a main shaft rod, the base is equipped with a drive box, and one side of the drive box is provided with a main shaft rod;

[0007] A syringe assembly, the syringe assembly comprising a syringe and a screw, the syringe is arranged on the base and coaxially arranged with the main shaft, the screw is arranged in the syringe and fixedly assembled on the main shaft;

[0008] The heat preservation chamber assembly comprises a heat preservation cylinder, a shaft ring, a conical shell, a connecting hole and a deep groove. The heat preservation cylinder is fixedly arranged on the base. The heat preservation cylinder is rotatably provided with a shaft ring at one end, and a conical shell is fixedly arranged at the other end of the heat preservation cylinder. The conical shell is arranged to fit the end of the injection tube, and the conical shell and the injection tube are connected through the connecting hole. One end of the shaft ring is also provided with a deep groove.

[0009] A diverter assembly, the diverter assembly comprising a diverter bucket, the diverter bucket is rotatably arranged inside the heat preservation tube, one end of the diverter bucket is slidably assembled in the heat preservation tube, and the other end of the diverter bucket is fixedly connected to the main shaft rod;

[0010] The mold assembly comprises a mold base and a shooting tube. One end of the mold base is provided with a shooting tube, which is inserted in the shaft ring and communicated with the heat preservation tube.

[0011] As a further scheme of the present invention, the injection tube assembly also includes a linkage plate, a side shaft, a side driven shaft, a driving gear, a driven gear, a center wheel and a synchronous belt. One end of the linkage plate is rotatably mounted on the main shaft rod, and the other end of the linkage plate is rotatably equipped with a side shaft. One end of the side shaft is transmission-connected to the main shaft rod, and the other end of the side shaft is slidably inserted with a side driven shaft. The side driven shaft and the driven gear are both fixedly mounted on the base, one end of the side driven shaft is fixedly mounted with a driving gear, and the driving gear is meshed with the driven gear. One end of the driven gear is fixedly mounted with a center wheel, and the center wheel is transmission-connected to the shaft ring through a synchronous belt.

[0012] As a further solution of the present invention, the injection tube assembly also includes a pushing plate, a material guide hole, a shooting head, a material guide groove and a check ring. A pushing plate is provided at one end of the screw rod close to the insulation cylinder, and a material guide hole is provided on the pushing plate. The shooting head is fixedly assembled on the main shaft, and a material guide groove is provided on the shooting head. The check ring is slidably provided between the pushing plate and the shooting head.

[0013] As a further solution of the present invention, a first cavity is arranged in the injection tube, the first cavity is arranged between the shooting head and the injection tube and close to one side of the insulation tube, a second cavity and a third cavity are arranged in the insulation tube, the second cavity is arranged between the connecting hole and the diverter bucket, and the third cavity is arranged between the deep groove and the diverter bucket.

[0014] As a further scheme of the present invention, the diverter assembly also includes a rod groove, a push rod, a main shaft plug, a secondary rod groove, a secondary shaft plug, a valve plate and a guide plate, the rod groove is arranged inside the diverter bucket, the push rod is slidably inserted in the rod groove and the two ends of the push rod are movably arranged outside the diverter bucket, the main shaft plug is coaxially fixedly connected with the push rod and the main shaft plug is limitedly slidably assembled in the rod groove, a secondary rod groove is also arranged on one side of the diverter bucket, one end of the secondary shaft plug is slidably arranged in the secondary rod groove, and the other end of the secondary shaft plug is fixedly connected to the valve plate, and a guide plate is also arranged on the diverter bucket, the valve plate is slidably arranged on one side of the guide plate, and the guide plate is provided with a flow hole matching the guide plate.

[0015] As a further solution of the present invention, a first cavity is provided in the rod groove, and a second cavity is provided in the auxiliary rod groove, and the first cavity and the second cavity are connected through a connecting pipe.

[0016] As a further solution of the present invention, the mold assembly also includes a central stopper, a side through hole, a tapered hole and a positioning rod. The central stopper is fixedly arranged in the shooting tube. A plurality of side through holes are arranged circumferentially on the central stopper. A tapered hole is also arranged on the end side of the nozzle of the shooting tube. One end of the positioning rod is fixedly connected to the central stopper, and a tapered block is slidably inserted at the other end of the positioning rod. The tapered block is used to movably block the tapered hole.

[0017] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0018] The present invention provides an insulation cylinder for insulating the molten material between the injection tube and the mold base, so that the material can be continuously stirred in the insulation chamber before injection, which can not only evenly disperse the heat of the material to avoid local over-temperature degradation, but also avoid local cooling and hardening caused by uneven temperature in the chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a partial cross-sectional view of an injection mold for producing toys made of degradable materials provided in one embodiment of the present invention.

[0020] Figure 2 This is a schematic structural diagram of an injection mold for producing toys made of degradable raw materials provided in one embodiment of the present invention.

[0021] Figure 3 This is a schematic structural diagram of an injection tube assembly and a heat preservation chamber assembly in an injection mold for producing toys made of degradable raw materials provided in an embodiment of the present invention.

[0022] Figure 4 for Figure 3 An enlarged schematic diagram of the figure marked A.

[0023] Figure 5 This is a schematic diagram of the back structure of an injection mold for producing toys made of degradable raw materials provided in one embodiment of the present invention.

[0024] Figure 6 for Figure 5 An enlarged schematic diagram of the figure marked B.

[0025] Figure 7 This is a schematic diagram of the partial structure of an injection mold for producing toys made of degradable raw materials provided in one embodiment of the present invention.

[0026] Figure 8 for Figure 7 An enlarged schematic diagram of the figure marked C.

[0027] Figure numerals: 1-base assembly, 101-base, 102-drive box, 103-spindle rod, 2-injection tube assembly, 201-injection tube, 202-screw, 203-linkage plate, 204-side shaft, 205-side drive shaft, 206-drive gear, 207-driven gear, 208-center wheel, 209-synchronous belt, 210-heater, 211-push plate, 212-guide hole, 213-shooting head, 214-guide groove, 215-check ring, 3-insulation chamber assembly, 301 -Insulation cylinder, 302-shaft ring, 303-conical shell, 304-connecting hole, 305-deep groove, 4-diverter assembly, 401-diverter bucket, 402-rod groove, 403-top rod, 404-main shaft plug, 405-secondary rod groove, 406-connecting pipe, 407-secondary shaft plug, 408-valve plate, 409-guide plate, 5-mold assembly, 501-mold base, 502-shooting tube, 503-center stopper, 504-side through hole, 505-conical hole, 506-positioning rod, 507-conical block. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] See also Figure 1-Figure 8In one embodiment of the present invention, an injection mold for producing toys made of degradable raw materials has a first direction x, a second direction y and a third direction z relative to each other, and the injection mold for producing toys made of degradable raw materials comprises a base assembly 1, the base assembly 1 comprises a base 101, a drive box 102 and a main shaft 103, the base 101 is equipped with a drive box 102, and one side of the drive box 102 is provided with a main shaft 103 along the first direction x; an injection tube assembly 2, the injection tube assembly 2 comprises an injection tube 2 01 and screw 202, the injection tube 201 is arranged on the base 101 along the first direction x and is coaxially arranged with the main shaft 103, the screw 202 is arranged in the injection tube 201 and is fixedly assembled on the main shaft 103; the insulation chamber component 3, the insulation chamber component 3 includes an insulation cylinder 301, a collar 302, a conical shell 303, a connecting hole 304 and a deep groove 305, the insulation cylinder 301 is fixedly arranged on the base 101, one end of the insulation cylinder 301 is rotatably provided with the collar 302, and the other end of the insulation cylinder 301 is fixedly provided with a conical shell 303 , the conical shell 303 is arranged to fit the end of the injection tube 201, and the conical shell 303 and the injection tube 201 are connected through a connecting hole 304, and a deep groove 305 is also arranged at one end of the collar 302; a diverter assembly 4, the diverter assembly 4 includes a diverter bucket 401, the diverter bucket 401 is rotatably arranged inside the heat preservation tube 301, and one end of the diverter bucket 401 is slidably assembled in the heat preservation tube 301, and the other end of the diverter bucket 401 is fixedly connected to the main shaft rod 103; a mold assembly 5, the mold assembly 5 includes a mold base 501 and a shooting tube 502 A shooting tube 502 is provided at one end of the mold base 501, and the shooting tube 502 is inserted in the shaft ring 302 and communicated with the heat preservation tube 301; a first cavity a1 is provided in the injection tube 201, and the first cavity a1 is provided between the shooting head 213 and the injection tube 201 and is provided close to the side of the heat preservation tube 301, and a second cavity a2 and a third cavity a3 are provided in the heat preservation tube 301, and the second cavity a2 is provided between the connecting hole 304 and the diverter 401, and the third cavity a3 is provided between the deep groove 305 and the diverter 401.

[0030] In actual application of this embodiment, during the use of the injection mold, the injection tube 201 is used to continuously input molten raw materials to one end of the mold base 501, and the main shaft rod 103 reciprocates and rotates in the first direction x, so that the molten material in the injection tube 201 is continuously pressed into the shooting tube 502, and enters the mold base 501 along the shooting tube 502 for injection molding. In the actual operation process, the main shaft rod 103 can drive the screw 202 to rotate when rotating, so that the raw material input into the injection tube 201 continues to move in the positive direction of the first direction x under the push of the screw 202. The shell surface of the injection tube 201 is linearly arranged with a plurality of heaters 210, and the temperature of the heaters 210 is increased in a gradient manner. A heat preservation tube 301 is fixedly arranged at the end side of the injection tube 201, and a conical shell 303 of a section of the heat preservation tube 301 is connected with the injection tube 201 through a connecting hole 304. A diverter 401 is slidably mounted inside the heat preservation tube 301, and the diverter 401 moves in contact with the inner wall of the heat preservation tube 301. When the main shaft rod 103 moves in the positive direction of the first direction x as a whole, the molten material in the cavity of the injection tube 201 is pushed. The lower edge connecting hole 304 enters the cavity on one side of the conical shell 303. At the same time, since the diverter 401 is fixedly connected to the main shaft 103, under the action of thrust, the diverter 401 can push the insulation material in the cavity of the insulation cylinder 301 along the shaft ring 302, and make the insulation material flow through the shaft ring 302 to the injection tube 502. When the main shaft 103 moves in the negative direction of the first direction x, the screw 202 synchronously moves in the negative direction of the first direction x and rotates axially at the same time, so that the molten material in the injection tube 201 is continuously sucked into one end of the insulation cylinder 301. When the diverter 401 is in the process of reverse movement, the nozzle at one end of the shooting tube 502 is closed, so that under the action of pressure, the molten material inside the injection tube 201 passes through the connecting hole 304 and enters the insulation tube 301 for insulation. In the insulation process, the collar 302 and the diverter 401 are driven by the main shaft 103 to rotate, and the rotation directions of the collar 302 and the diverter 401 are opposite, so that the insulation material inside the insulation tube 301 is evenly heated during the stirring process, on the one hand, preventing local overheating from causing material degradation, and on the other hand, preventing the material from being locally overcooled and solidified.

[0031] See also Figure 6In a preferred embodiment of the present invention, the injection tube assembly 2 also includes a linkage plate 203, a side shaft 204, a side drive shaft 205, a driving gear 206, a driven gear 207, a center wheel 208 and a synchronous belt 209. One end of the linkage plate 203 is rotatably sleeved on the main shaft rod 103, and the other end of the linkage plate 203 is rotatably equipped with the side shaft 204. One end of the side shaft 204 is transmission-connected with the main shaft rod 103, and the other end of the side shaft 204 is slidably inserted with the side drive shaft 205. The side drive shaft 205 and the driven gear 207 are both fixedly assembled on the base 101. One end of the side drive shaft 205 is fixedly assembled with the driving gear 206, and the driving gear 206 is meshed with the driven gear 207. One end of the driven gear 207 is fixedly assembled with the center wheel 208, and the center wheel 208 is transmission-connected with the shaft ring 302 through the synchronous belt 209.

[0032] In actual application of this embodiment, the linkage plate 203 is rotatably sleeved on the main shaft rod 103, and the side shaft 204 of the upper limit rotation assembly of the linkage plate 203 and the main shaft rod 103 are connected in transmission, so that when the main shaft rod 103 slides in the first direction x, the side shaft 204 follows the main shaft rod 103 to move and rotate synchronously in the first direction x, and a side drive shaft 205 is inserted at the end of the side shaft 204 for limited sliding. The side drive shaft 205 is fixedly arranged on the base 101, so that the side drive shaft 205 and the driving gear 206 rotate synchronously with the main shaft rod 103, and the driving gear 206 can engage and drive the driven gear 207 to rotate during the rotation process, so that the middle wheel 208 at one end of the driven gear 207 synchronously drives the shaft ring 302 to rotate through the synchronous belt 209.

[0033] In one case of the present embodiment, the rotation direction of the shaft ring 302 is opposite to that of the main shaft 103, so that when the insulation material is inside the insulation tube 301, the shaft ring 302 and the diverter bucket 401 can form a rotating vortex of the insulation material during the reverse rotation, thereby accelerating the mixing of the insulation material so as to evenly disperse its heat.

[0034] See also Figure 3 In a preferred embodiment of the present invention, the injection tube assembly 2 also includes a push plate 211, a material guide hole 212, a shooting head 213, a material guide groove 214 and a check ring 215. The screw 202 is provided with a push plate 211 at one end close to the insulation cylinder 301, and the push plate 211 is provided with a material guide hole 212. The shooting head 213 is fixedly assembled on the main shaft 103, and the shooting head 213 is provided with a material guide groove 214. The check ring 215 is slidably arranged between the push plate 211 and the shooting head 213.

[0035] In actual application of this embodiment, the push plate 211 is provided with a material guide hole 212. When the push plate 211 moves in the positive direction of the first direction x, the check ring 215 is pressed against one side of the push plate 211 under the driving action of the fluid, and the material guide hole 212 is in a blocked state. At this time, the molten material in the first cavity a1 enters the second cavity a2 along the connecting hole 304 under the driving action. At the same time, the diverter 401 pushes the insulation material in the third cavity a3 along the shooting tube 502 under the driving action. Output to the mold base 501, when the push plate 211 moves in the negative direction of the first direction x, the check ring 215 is pressed against the side of the shooting head 213 under the push of the fluid, so that the guide hole 212 on the push plate 211 is in a conducting state. At this time, the screw 202 is synchronously in a rotating state, so that the molten material in the injection tube 201 can continuously pass through the guide groove 214 and converge in the first cavity a1. At the same time, the diverter 401 transfers the molten material in the second cavity a2 to the third cavity a3 under the driving action.

[0036] See also Figure 4 In a preferred embodiment of the present invention, the diverter assembly 4 further comprises a rod groove 402, a push rod 403, a main shaft plug 404, a secondary rod groove 405, a secondary shaft plug 407, a valve plate 408 and a guide plate 409, wherein the rod groove 402 is arranged inside the diverter bucket 401, the push rod 403 is slidably inserted into the rod groove 402 and both ends of the push rod 403 are movably arranged outside the diverter bucket 401, the main shaft plug 404 is coaxially fixedly connected with the push rod 403 and the main shaft plug 404 is limitedly slidably assembled in the rod groove 402, and one side of the diverter bucket 401 is also A secondary rod groove 405 is provided, one end of the secondary shaft plug 407 is slidably provided in the secondary rod groove 405, and the other end of the secondary shaft plug 407 is fixedly connected to a valve plate 408, and a guide plate 409 is also provided on the diverter 401, the valve plate 408 is slidably arranged on one side of the guide plate 409, and the guide plate 409 is provided with a flow hole matching the guide plate 409; a first cavity b1 is provided in the rod groove 402, and a second cavity b2 is provided in the secondary rod groove 405, and the first cavity b1 and the second cavity b2 are connected via a connecting pipe 406.

[0037] In actual application of this embodiment, a push rod 403 is slidably inserted in the rod groove 402, and a main shaft plug 404 coaxially fixedly connected to the push rod 403 is limitedly slidably inserted in the rod groove 402, and the first volume b1 in the rod groove 402 is connected to the second volume b2 set in the auxiliary rod groove 405 through a connecting pipe 406, and hydraulic oil is poured into the first volume b1 and the second volume b2. When the rod groove 402 moves in the negative direction of the first direction x, the hydraulic oil in the first volume b1 can be pumped into the second volume b2 along the connecting pipe 406. In the second volume chamber b2, the secondary shaft plug 407 slides along the secondary rod groove 405 under the push of the hydraulic oil, and the valve plate 408 on its side is linked to slide in a directional manner on the side of the guide plate 409, so that the flow holes on the valve plate 408 and the guide plate 409 are switched between the conducting state and the blocking state. In this embodiment, when the push rod 403 abuts against one side of the conical shell 303, the push rod 403 moves in the positive direction of the first direction x, and the first volume chamber b1 is in a negative pressure state, so that the hydraulic pressure in the second volume chamber b2 is increased by using the pressure difference. The oil is sucked back so that the secondary shaft plug 407 pulls the valve plate 408 during the retraction process, and the flow holes on the valve plate 408 are misaligned with the flow holes on the guide plate 409, so that the second cavity a2 and the third cavity a3 on both sides of the diverter 401 are in a blocked state. At this time, when the diverter 401 moves in the positive direction of the first direction x again, the molten material in the third cavity a3 can be output to the mold base 501 along the shooting tube 502, and when the ejector rod 403 abuts against one side of the shaft ring 302, the ejector rod 403 moves in the negative direction of the first direction x. When the secondary shaft plug 407 moves in the negative direction of the first direction x, the first volume chamber b1 is in a positive pressure state, so that the hydraulic oil is pumped into the second volume chamber b2 by using the pressure difference, so that the secondary shaft plug 407 pushes the valve plate 408 during the extension process, and the flow hole on the valve plate 408 is aligned with the flow hole on the guide plate 409, so that the second cavity a2 and the third cavity a3 on both sides of the diverter 401 are in a conducting state. At this time, when the diverter 401 moves in the negative direction of the first direction x again, the molten material in the second cavity a2 can flow along the flow hole to the third cavity a3.

[0038] See also Figure 8 In a preferred embodiment of the present invention, the mold assembly 5 further includes a central stopper 503, a side through hole 504, a tapered hole 505 and a positioning rod 506. The central stopper 503 is fixedly arranged in the shooting tube 502. A plurality of side through holes 504 are arranged circumferentially on the central stopper 503. A tapered hole 505 is also arranged on the end side of the nozzle of the shooting tube 502. One end of the positioning rod 506 is fixedly connected to the central stopper 503, and a tapered block 507 is slidably inserted at the other end of the positioning rod 506. The tapered block 507 is used to movably block the tapered hole 505.

[0039] In actual application of this embodiment, when the molten material flows along the shooting tube 502 toward the mold base 501, the fluid pushes open the conical hole 505 and causes the conical hole 505 to slide along the positioning rod 506 and fit onto one side of the central stopper 503. At this time, the molten material can continue to flow along the side through hole 504. When the third cavity a3 is in a negative pressure state, the conical block 507 slides along the positioning rod 506 and fits onto the conical hole 505, so that the conical hole 505 is in a blocked state, thereby limiting the molten material in the shooting tube 502 from being sucked back into the heat preservation tube 301.

[0040] The above-mentioned embodiment of the present invention provides an injection mold for producing toys made of biodegradable raw materials. By arranging an insulation cylinder 301 for insulating the molten material between the injection tube 201 and the mold base 501, the material can be continuously stirred in the insulation chamber before injection, which can not only evenly disperse the heat of the material to avoid local over-temperature degradation, but also avoid local cooling and hardening caused by uneven temperature in the cavity.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold for toy production using degradable raw materials, characterized in that: The injection mold for producing toys made of degradable raw materials includes: A base assembly, the base assembly comprising a base, a drive box and a main shaft rod, the base is equipped with a drive box, and a main shaft rod is arranged on one side of the drive box; A syringe assembly, the syringe assembly comprising a syringe and a screw, the syringe is arranged on the base and coaxially arranged with the main shaft, the screw is arranged in the syringe and fixedly assembled on the main shaft; The heat preservation chamber assembly comprises a heat preservation cylinder, a shaft ring, a conical shell, a connecting hole and a deep groove. The heat preservation cylinder is fixedly arranged on the base. The heat preservation cylinder is rotatably provided with a shaft ring at one end, and a conical shell is fixedly arranged at the other end of the heat preservation cylinder. The conical shell is arranged to fit the end of the injection tube, and the conical shell and the injection tube are connected through the connecting hole. One end of the shaft ring is also provided with a deep groove. A diverter assembly, the diverter assembly comprising a diverter bucket, the diverter bucket is rotatably arranged inside the heat preservation tube, one end of the diverter bucket is slidably assembled in the heat preservation tube, and the other end of the diverter bucket is fixedly connected to the main shaft rod; A mold assembly, the mold assembly comprising a mold base and a shooting tube, one end of the mold base is provided with a shooting tube, the shooting tube is inserted in the shaft ring and communicated with the heat preservation tube; The diverter assembly also includes a rod groove, a push rod, a main shaft plug, a secondary rod groove, a secondary shaft plug, a valve plate and a guide plate, the rod groove is arranged inside the diverter bucket, the push rod is slidably inserted in the rod groove and the two ends of the push rod are movably arranged outside the diverter bucket, the main shaft plug is coaxially fixedly connected with the push rod and the main shaft plug is limitedly slidably assembled in the rod groove, a secondary rod groove is also arranged on one side of the diverter bucket, one end of the secondary shaft plug is slidably arranged in the secondary rod groove, the other end of the secondary shaft plug is fixedly connected with the valve plate, and a guide plate is also arranged on the diverter bucket, the valve plate is slidably arranged on one side of the guide plate, and the guide plate is provided with a flow hole matching the guide plate; The rod groove is provided with a first cavity, the auxiliary rod groove is provided with a second cavity, and the first cavity is connected to the second cavity through a connecting pipe.

2. The injection mold for toys made of degradable raw materials according to claim 1, characterized in that: The injection tube assembly also includes a linkage plate, a side shaft, a side driven shaft, a driving gear, a driven gear, a center wheel and a synchronous belt. One end of the linkage plate is rotatably mounted on the main shaft rod, and the other end of the linkage plate is rotatably equipped with a side shaft. One end of the side shaft is transmission-connected to the main shaft rod, and the other end of the side shaft is slidably inserted with a side driven shaft. The side driven shaft and the driven gear are both fixedly mounted on the base, one end of the side driven shaft is fixedly mounted with a driving gear, and the driving gear is meshed with the driven gear. One end of the driven gear is fixedly mounted with a center wheel, and the center wheel is transmission-connected to the shaft ring through a synchronous belt.

3. The injection mold for toys made of degradable raw materials according to claim 1, characterized in that: The injection tube assembly also includes a push plate, a material guide hole, a shooting head, a material guide groove and a check ring. A push plate is provided at one end of the screw rod close to the insulation cylinder, and a material guide hole is provided on the push plate. The shooting head is fixedly assembled on the main shaft, and a material guide groove is provided on the shooting head. The check ring is slidably provided between the push plate and the shooting head.

4. The injection mold for toys made of degradable raw materials according to claim 1, characterized in that: A first cavity is arranged in the injection tube, the first cavity is arranged between the shooting head and the injection tube and close to one side of the insulation tube, a second cavity and a third cavity are arranged in the insulation tube, the second cavity is arranged between the connecting hole and the diverter bucket, and the third cavity is arranged between the deep groove and the diverter bucket.

5. The injection mold for toys made of degradable raw materials according to claim 1, characterized in that: The mold assembly also includes a central stopper, a side through hole, a tapered hole and a positioning rod. The central stopper is fixedly arranged in the shooting tube. A plurality of side through holes are arranged circumferentially on the central stopper. A tapered hole is also arranged on the end side of the tube mouth of the shooting tube. One end of the positioning rod is fixedly connected to the central stopper, and a tapered block is slidably inserted at the other end of the positioning rod. The tapered block is used to movably block the tapered hole.

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