Plastic toy injection molding device capable of reducing defective rate of finished products

Abstract

The utility model relates to the technical field of injection molding devices, in particular to a plastic toy injection molding device capable of reducing the defective rate of finished products, which comprises a base, a top seat, an injection molding component and an injection molding port component, the injection molding port component for heating is arranged between the top seat and the injection molding component, and the injection molding component comprises a sleeve and an extrusion head. The extrusion head is installed at the bottom of the sleeve, the extrusion head is used for material falling, the extrusion head is in a step shape, holes in the extrusion head are shrunk layer by layer, the injection molding opening assembly comprises a shell and a top cover, the top of the top cover is in butt joint with the bottom of the extrusion head, and the top cover and the shell are mutually fixed; the extrusion head is arranged to be in the step shape, so that holes in the extrusion head are shrunk layer by layer, the injection molding pressure is increased, then the extrusion head is in butt joint with the injection molding opening assembly, heating is conducted through the heating core in the extrusion head, and therefore materials can be prevented from being solidified in advance and blocking the discharging holes in the extrusion head.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices, in particular to a plastic toy injection molding device capable of reducing the defective rate of finished products. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] Chinese patent CN116968277A discloses an injection molding machine for producing plastic toys, which relates to the technical field of injection molding machines, and comprises a bottom plate, wherein hydraulic telescopic rods are arranged at the four corners of the upper end of the bottom plate, and a material storage box is arranged at the upper ends of the four hydraulic telescopic rods, and an injection molding machine body communicating with the inner cavity of the material storage box is arranged at the upper end of the material storage box, and a plurality of discharge pipes communicating with the inner cavity of the material storage box are evenly arranged in the middle of the lower end of the material storage box, and a storage box 1 and a storage box 2 are arranged in the middle of the front and rear outer end walls of the material storage box, respectively.

[0004] In the above structure, the space occupied by the raw material is changed by controlling the movement of the two extrusion plates to increase the injection speed of the raw material and prevent the plastic toys from being unable to be completely formed due to too low injection pressure. In addition, the push-pull plate 1 and the push-pull plate 2 combined together can be controlled to move up and down to scrape off the residual raw material attached to the discharge port and the inner wall of the discharge pipe to avoid the loss of plastic toys. However, this injection molding machine still has the problem of too low injection pressure, and the material is easy to solidify prematurely in the injection port, thereby affecting the injection pressure. The premature solidification of the material will also block the injection port, resulting in the inability to completely form the toy and a high defective rate of the toy. Utility Model Content

[0005] The utility model aims to provide a plastic toy injection molding device for reducing the defective rate of finished products by arranging the extruder head into a stepped shape so that the holes inside the extruder head are gradually reduced, thereby increasing the injection pressure, and then the extruder head and the injection port assembly are docked with each other and heated by the internal heating core, thereby preventing the material from solidifying prematurely and clogging the internal discharge hole, thereby reducing the defective rate of the toy.

[0006] In order to solve the problems of the prior art, the utility model provides a plastic toy injection molding device for reducing the defective rate of finished products, comprising a base, a top seat, an injection molding component and an injection molding port component, an injection molding port component for heating is arranged between the top seat and the injection molding component, the injection molding component comprises a sleeve and an extrusion head, the extrusion head is installed to the bottom of the sleeve, the extrusion head is used for material falling, and the extrusion head is stepped, and the holes inside the extrusion head are reduced layer by layer, the injection molding port component comprises an outer shell and a top cover, and the top of the top cover and the bottom of the extrusion head are butted against each other, the top cover and the outer shell are fixed to each other, the injection molding port component also includes a heating core, and the heating core is embedded in the outer shell, and a plurality of groups of induction coils for heating are arranged inside the heating core.

[0007] Preferably, the injection port assembly is arranged at the center position inside the top seat, and the top of the top seat and the injection assembly are fixed to each other.

[0008] Preferably, the injection molding component includes an extrusion screw for extruding materials, and the extrusion screw is rotatably set inside the sleeve, the shaft on the extrusion screw passes through one side of the sleeve, and the shaft on the extrusion screw is movably set inside the sleeve, the injection molding component also includes a second rotating drive component for rotating the extrusion screw, and the output end of the second rotating drive component is fixedly connected to the extrusion screw, and the injection molding component also includes a barrel for storing materials, and the bottom of the barrel is connected to the sleeve.

[0009] Preferably, a plurality of groups of support rods are evenly arranged around the top of the base, and the support rods are vertically distributed on the base, and the tops of the support rods and the bottom of the top seat are fixed to each other.

[0010] Preferably, a lifting seat for lifting is slidably provided on the support rod, and a laser assembly is installed on the outside of the lifting seat and the top seat, and the laser assembly includes a laser transmitter and a laser receiver, the laser transmitter is used to emit laser and is installed on the outside of the lifting seat, and the laser receiver is used to receive laser and is installed on the outside of the top seat.

[0011] Preferably, the lifting seat includes a first mounting groove for fixing the mold, and the first mounting groove is evenly distributed in the lifting seat, and the top seat also includes a second mounting groove for fixing the mold, and the second mounting groove is evenly distributed in the top seat.

[0012] Preferably, a support assembly is provided outside the lifting seat, and the support assembly includes a connecting block, and the connecting block is fixed to the outside of the lifting seat, and a connecting rod is fixed to the connecting block by bolts, and a support sleeve is fixed to one end of the connecting rod, and a support member is vertically fixed to the support sleeve.

[0013] Preferably, a lifting assembly is provided on the top of the base, and the lifting assembly includes a lead screw and a first rotating drive member, and both ends of the lead screw are laterally movably arranged to the top of the base through a bearing sleeve and a bearing, and the first rotating drive member is fixed to the side of the base by bolts, and the output end of the first rotating drive member and one end of the lead screw are fixedly connected to each other, the lifting assembly also includes a moving sleeve and a lifting rod, the moving sleeve is sleeved on the lead screw through an internal thread, and one end of the lifting rod is movably connected to the outside of the moving sleeve through an axis, and the top of the lifting rod is movably arranged to the center of the bottom of the lifting seat through the axis.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the plastic toy injection molding device for reducing the defective rate of finished products has a reasonable structure and has the following advantages:

[0015] (1) By providing an extrusion head, the extrusion head presents a stepped shape, so that the holes inside the extrusion head are reduced layer by layer, so that when the power output of the injection molding machine is constant, the pressure of the material ejection is increased, and in order to prevent the material from solidifying prematurely, the heating core is quickly heated by the action of the induction coil through the principle of electromagnetic induction, so that the material will not solidify prematurely before reaching the mold, thereby reducing the defective rate of the product.

[0016] (2) A laser transmitter is arranged on the lifting seat and a laser receiver is arranged on the top seat. When the laser transmitter emits laser light and the laser receiver receives the laser light, when the worker takes out the product, part of the laser light is blocked, thereby feeding back a signal to the injection molding machine, thereby preventing the machine from starting suddenly and pressing the worker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The invention is a three-dimensional structural schematic diagram of a plastic toy injection molding device for reducing the defective rate of finished products.

[0018] Figure 2 The invention discloses a schematic diagram of an exploded structure of a plastic toy injection molding device for reducing the defective rate of finished products.

[0019] Figure 3 The invention discloses a schematic diagram of an exploded structure when viewed from above of a plastic toy injection molding device for reducing the defective rate of finished products.

[0020] Figure 4 The invention is a right side structural schematic diagram of a plastic toy injection molding device for reducing the defective rate of finished products.

[0021] Figure 5 The invention discloses a back view structural diagram of a plastic toy injection molding device for reducing the defective rate of finished products.

[0022] Figure 6 The invention discloses a schematic diagram of a top view structure of a plastic toy injection molding device for reducing the defective rate of finished products.

[0023] The numbers in the figure are: 1. base; 2. lifting assembly; 201. screw; 202. first rotating drive member; 203. movable sleeve; 204. lifting rod; 3. support rod; 4. lifting seat; 401. first mounting groove; 5. laser assembly; 501. laser transmitter; 502. laser receiver; 6. top seat; 601. second mounting groove; 7. injection molding assembly; 701. second rotating drive member; 702. sleeve; 703. extrusion screw; 704. barrel; 705. extrusion head; 8. injection molding port assembly; 801. housing; 802. heating core; 803. induction coil; 804. top cover; 9. support assembly; 901. connecting block; 902. connecting rod; 903. support sleeve; 904. support member. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1 — Figure 6 As shown, the utility model provides: a plastic toy injection molding device for reducing the defective rate of finished products, comprising a base 1, a top seat 6, an injection molding assembly 7 and an injection molding port assembly 8, an injection molding port assembly 8 for heating is arranged between the top seat 6 and the injection molding assembly 7, the injection molding assembly 7 comprises a sleeve 702 and an extrusion head 705, the extrusion head 705 is installed to the bottom of the sleeve 702, the extrusion head 705 is used for material falling, and the extrusion head 705 is stepped, and the holes inside the extrusion head 705 are reduced layer by layer, the injection molding port assembly 8 comprises an outer shell 801 and a top cover 804, and the top of the top cover 804 and the bottom of the extrusion head 705 are connected to each other, the top cover 804 and the outer shell 801 are fixed to each other, the injection molding port assembly 8 also includes a heating core 802, and the heating core 802 is embedded in the outer shell 801, and a plurality of groups of induction coils 803 for heating are arranged inside the heating core 802.

[0026] In this embodiment, the extrusion head 705 is stepped, so that the holes inside the extrusion head 705 are reduced layer by layer, so that when the power output of the injection molding machine is constant, the pressure of the material ejection is increased, and in order to prevent the material from solidifying prematurely, the heating core 802 is quickly heated by the action of the induction coil 803 through the principle of electromagnetic induction, so that the material will not solidify prematurely before reaching the mold, thereby reducing the defective rate of the product.

[0027] The injection molding port assembly 8 is set to the central position inside the top seat 6, and the top of the top seat 6 is fixed to the injection molding assembly 7. The injection molding assembly 7 includes an extrusion screw 703 for extruding materials, and the extrusion screw 703 is rotatably set inside the sleeve 702. The shaft on the extrusion screw 703 passes through one side of the sleeve 702, and the shaft on the extrusion screw 703 is movably set to the inside of the sleeve 702. The injection molding assembly 7 also includes a second rotating drive member 701 for rotating the extrusion screw 703, and the output end of the second rotating drive member 701 is fixedly connected to the extrusion screw 703. The injection molding assembly 7 also includes a barrel 704 for storing materials, and the bottom of the barrel 704 is connected to the sleeve 702.

[0028] In this embodiment, by starting the second rotary drive member 701, the second rotary drive member 701 will cause the extrusion screw 703 to rotate, thereby rotating and extruding the material.

[0029] A plurality of groups of support rods 3 are evenly arranged around the top of the base 1, and the support rods 3 are vertically distributed on the base 1, and the tops of the support rods 3 and the bottom of the top seat 6 are fixed to each other, and a lifting seat 4 for lifting is slidably arranged on the support rods 3, and a laser assembly 5 is installed on the outside of the lifting seat 4 and the top seat 6, and the laser assembly 5 includes a laser emitter 501 and a laser receiver 502, the laser emitter 501 is used to emit laser and is installed on the outside of the lifting seat 4, and the laser receiver 502 is used to receive laser and is installed on the outside of the top seat 6.

[0030] In this embodiment, the laser is emitted by the laser transmitter 501 and received by the laser receiver 502. When the worker takes out the product, the laser is blocked and a signal is fed back to the injection molding machine, thereby preventing the machine from starting suddenly and pressing the worker.

[0031] The lifting seat 4 includes a first mounting groove 401 for fixing the mold, and the first mounting groove 401 is evenly distributed in the lifting seat 4. The top seat 6 also includes a second mounting groove 601 for fixing the mold, and the second mounting groove 601 is evenly distributed in the top seat 6. Through the functions of the first mounting groove 401 and the second mounting groove 601, the subsequent fixing of the mold can be facilitated.

[0032] A support assembly 9 is provided outside the lifting seat 4, and the support assembly 9 includes a connecting block 901, and the connecting block 901 is fixed to the outside of the lifting seat 4, and a connecting rod 902 is fixed to the connecting block 901 by bolts, and a support sleeve 903 is fixed to one end of the connecting rod 902, and a support member 904 is vertically fixed to the support sleeve 903.

[0033] In this embodiment, the staff can loosen the bolts on the connecting block 901, and then rotate the connecting block 901 to place the support sleeve 903 on the lifting seat 4, so that when the top seat 6 suddenly falls, the support member 904 provides support to prevent the injection molding machine from pressing the staff.

[0034] A lifting assembly 2 is arranged on the top of the base 1, and the lifting assembly 2 includes a lead screw 201 and a first rotating drive member 202, and both ends of the lead screw 201 are laterally movably arranged to the top of the base 1 through bearing sleeves and bearings, and the first rotating drive member 202 is fixed to the side of the base 1 through bolts, and the output end of the first rotating drive member 202 is fixedly connected to one end of the lead screw 201, the lifting assembly 2 also includes a moving sleeve 203 and a lifting rod 204, the moving sleeve 203 is sleeved on the lead screw 201 through an internal thread, and one end of the lifting rod 204 is movably connected to the outside of the moving sleeve 203 through an axis, and the top of the lifting rod 204 is movably arranged to the center of the bottom of the lifting seat 4 through an axis.

[0035] In this embodiment, by starting the first rotating drive member 202, the first rotating drive member 202 will cause the lead screw 201 to rotate, the first rotating drive member 202 will cause the movable sleeve 203 to rotate, and the movable sleeve 203 will cause the lifting rod 204 to move, thereby moving the lifting seat 4 to achieve mold closing.

[0036] Working principle: When in use, by fixing the mold to the lifting seat 4 and the top seat 6, in order to prevent the worker from suddenly falling and pressing the machine when installing the mold, the worker can loosen the bolts on the connecting block 901, and then rotate the connecting block 901 to put the support sleeve 903 on the lifting seat 4, so that when the top seat 6 suddenly falls, the support member 904 provides support to prevent the injection molding machine from pressing the worker. When the mold is installed, the support sleeve 903 is unscrewed, and then the material is poured into the barrel 704, and then the material enters the sleeve 702 for heating, and then by starting the second rotary drive member 701, the second rotary drive member 701 will cause the extrusion screw 703 to rotate to extrude the material into the extruder. In the extrusion head 705, the first rotary drive member 202 is then started, and the first rotary drive member 202 causes the lead screw 201 to rotate, and the first rotary drive member 202 causes the movable sleeve 203 to rotate, and the movable sleeve 203 causes the lifting rod 204 to move, thereby causing the lifting seat 4 to move, and then the mold is closed, and the extrusion head 705 is stepped, so that the holes inside the extrusion head 705 are reduced layer by layer, so that when the power output of the injection molding machine is constant, the pressure of the material ejection is increased, and in order to avoid premature solidification of the material, the heating core 802 is quickly heated by the action of the induction coil 803 through the principle of electromagnetic induction, so that the material will not solidify in advance before reaching the mold, thereby reducing the defective rate of the product. After the mold is opened, when the staff takes out the product, a part of the laser is blocked, thereby feeding back a signal to the injection molding machine, thereby preventing the machine from starting suddenly and pressing the staff.

[0037] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A plastic toy injection molding device for reducing the defective rate of finished products, characterized in that: The invention comprises a base (1), a top seat (6), an injection molding assembly (7) and an injection molding port assembly (8), wherein an injection molding port assembly (8) for heating is arranged between the top seat (6) and the injection molding assembly (7), and the injection molding assembly (7) comprises a sleeve (702) and an extrusion head (705), wherein the extrusion head (705) is installed at the bottom of the sleeve (702), and the extrusion head (705) is used for the material to fall, and the extrusion head (705) is in a stepped shape, and the holes inside the extrusion head (705) are gradually reduced; The injection port assembly (8) comprises a shell (801) and a top cover (804), wherein the top of the top cover (804) is butted against the bottom of the extrusion head (705), and the top cover (804) and the shell (801) are fixed to each other; The injection port assembly (8) further comprises a heating core (802), and the heating core (802) is embedded in the housing (801), and a plurality of groups of induction coils (803) for heating are arranged inside the heating core (802).

2. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 1, characterized in that: The injection port assembly (8) is arranged at the central position inside the top seat (6), and the top of the top seat (6) and the injection assembly (7) are fixed to each other.

3. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 2, characterized in that: The injection molding component (7) includes an extrusion screw (703) for extruding a material, and the extrusion screw (703) is rotatably arranged inside the sleeve (702), the shaft on the extrusion screw (703) passes through one side of the sleeve (702), and the shaft on the extrusion screw (703) is movably arranged inside the sleeve (702); The injection molding assembly (7) further comprises a second rotary driving member (701) for rotating the extrusion screw (703), and the extrusion screw (703) at the output end of the second rotary driving member (701) is fixedly connected to each other; The injection molding assembly (7) further comprises a barrel (704) for storing materials, and the bottom of the barrel (704) is connected to the sleeve (702).

4. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 1, characterized in that: A plurality of groups of support rods (3) are evenly arranged around the top of the base (1), and the support rods (3) are vertically distributed on the base (1), and the tops of the support rods (3) and the bottom of the top seat (6) are fixed to each other.

5. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 4, characterized in that: A lifting seat (4) for lifting is slidably provided on the support rod (3); a laser assembly (5) is installed outside the lifting seat (4) and the top seat (6); and the laser assembly (5) comprises a laser transmitter (501) and a laser receiver (502); the laser transmitter (501) is used for emitting laser light and is installed outside the lifting seat (4); and the laser receiver (502) is used for receiving laser light and is installed outside the top seat (6).

6. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 5, characterized in that: The lifting seat (4) includes a first mounting groove (401) for fixing the mold, and the first mounting groove (401) is evenly distributed in the lifting seat (4), and the top seat (6) also includes a second mounting groove (601) for fixing the mold, and the second mounting groove (601) is evenly distributed in the top seat (6).

7. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 6, characterized in that: A support assembly (9) is arranged outside the lifting seat (4), and the support assembly (9) includes a connecting block (901), and the connecting block (901) is fixed to the outside of the lifting seat (4), and a connecting rod (902) is fixed to the connecting block (901) by bolts, and a support sleeve (903) is fixed to one end of the connecting rod (902), and a support member (904) is vertically fixed to the support sleeve (903).

8. A plastic toy injection molding device for reducing the defective rate of finished products according to claim 1, characterized in that: A lifting assembly (2) is arranged on the top of the base (1), and the lifting assembly (2) comprises a lead screw (201) and a first rotating drive member (202), and both ends of the lead screw (201) are arranged on the top of the base (1) via a bearing sleeve and a bearing so as to be laterally movable, and the first rotating drive member (202) is fixed to the side of the base (1) via bolts, and the output end of the first rotating drive member (202) is fixedly connected to one end of the lead screw (201); The lifting assembly (2) further comprises a moving sleeve (203) and a lifting rod (204); the moving sleeve (203) is sleeved onto the lead screw (201) via an internal thread, and one end of the lifting rod (204) is movably connected to the outside of the moving sleeve (203) via an axis; the top of the lifting rod (204) is movably arranged at the center of the bottom of the lifting seat (4) via an axis.

Images