Injection molding machine for plastic product production

Abstract

The invention relates to the technical field of injection molding machines, in particular to an injection molding machine for plastic product production, which comprises a control machine table, an injection molding box, an extension plate, a linkage pushing mechanism, a linkage ejection mechanism and a collection box, a spiral feeding pipe is mounted at the top of the control machine table, and a charging barrel is fixedly communicated with the top of the spiral feeding pipe; the injection molding box is arranged at the discharging end of the spiral feeding pipe, and a mold closing mechanism is arranged in the injection molding box. By means of linkage between the linkage ejection mechanism and the movable mold plate, during demolding, a plastic product staying on the movable mold plate is ejected to fall off through the ejection rod, an independent power source and an independent operation system are not needed, the cost of the injection molding machine is effectively reduced, and the injection molding efficiency is improved while mold closing and demolding are conducted. The linkage material pushing mechanism replaces manual work to synchronously push the ejected and fallen plastic products into the collecting box, so that manual operation is reduced, the manual burden is reduced, the products are prevented from being piled up and hindering collection of other products, and efficient production of the plastic products is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to an injection molding machine for producing plastic 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 eject and fill the mold cavity.

[0003] At present, when the existing injection molding machine is in use, after the injection molding is completed, the plastic product needs to be removed. At this time, the product is generally removed manually, or an ejection structure is added to the injection molding machine to eject the product. The added structure generally operates independently and requires corresponding system operations and power sources, which increases the production cost. In addition, the ejected products still need to be manually sorted to prevent product accumulation, thereby affecting the production efficiency of plastic products. Summary of the invention

[0004] In order to solve the problem that the existing injection molding machine requires much manual intervention and has high production cost, the present invention provides an injection molding machine for producing plastic products.

[0005] The present invention provides an injection molding machine for producing plastic products, which adopts the following technical solution:

[0006] An injection molding machine for producing plastic products, comprising:

[0007] A control machine platform, a spiral feed pipe is installed on the top of which, and the top of the spiral feed pipe is fixedly connected to a barrel;

[0008] An injection molding box, which is arranged at the discharge end of the spiral feed pipe, wherein a clamping mechanism is arranged in the injection molding box, wherein the clamping mechanism comprises a fixed mold plate and a movable mold plate, wherein the bottom end of the movable mold plate is slidably connected to the inner wall of the injection molding box, and the fixed mold plate is fixedly connected to the spiral feed pipe;

[0009] An extension plate fixedly connected to the outer wall of the injection molding box;

[0010] A linkage material pushing mechanism, which is arranged on the injection molding box and is transmission-connected to the movable mold plate;

[0011] A linkage ejection mechanism is arranged inside the injection molding box, the linkage ejection mechanism is transmission-connected with the movable template, the linkage ejection mechanism comprises a fixed plate and a shaft rod, the fixed plate is fixedly connected to the side of the movable template away from the fixed template, the shaft rod penetrates the fixed plate and is rotationally connected to the fixed plate, the middle part of the shaft rod is coaxially fixedly connected with a linkage gear, the two sides of the shaft rod are coaxially fixedly connected with a driving gear, the inner wall of the injection molding box is fixedly connected with a fixed rack meshing with the driving gear, the inner wall of the injection molding box is fixedly connected with a slide rail, a movable rack slidably connected with the linkage gear in the slide rail, and one end of the movable rack is fixedly connected with a ejector rod;

[0012] The collecting box is movably connected to the outside of the injection molding box, and the side surface of the collecting box is connected to the discharge port of the injection molding box.

[0013] By adopting the above technical scheme, the problems of independent operation of the ejection structure of the existing injection molding machine, high cost and manual sorting of the plastic products after injection molding are solved. Specifically, the linkage ejection mechanism is linked with the movable template. When demolding, the plastic products remaining on the movable template are pushed down by the ejector rod. No independent power source and operating system are required, which effectively reduces the cost of the injection molding machine. At the same time of mold closing and demolding, the linkage pushing mechanism replaces manual synchronization to push the pushed down plastic products into the collection box, thereby reducing manual operation, reducing labor burden, and preventing products from crowding up and hindering the collection of other products, thereby ensuring the efficient production of plastic products.

[0014] Optionally, the linkage pushing mechanism includes a rotating rod, a driven gear and a driving gear, the rotating rod is rotatably connected with the extension plate, the driven gear and the driving gear are both coaxially fixedly connected to the rotating rod, and the driven gear and the driving gear are located on both sides of the extension plate, the outer wall of the injection molding box is provided with a guide rail, the guide rail is slidably connected with an outer tooth plate meshing with the driven gear, the inner wall of the injection molding box is slidably connected with an inner tooth plate meshing with the driving gear, the inner tooth plate is fixedly connected to the outer wall of the moving template, a sliding groove is provided on the bottom side of the guide rail, a connecting rod is slidably connected in the sliding groove, one end of the connecting rod is fixedly connected to the bottom end of the outer tooth plate, and the other end is rotatably connected to the pushing plate.

[0015] By adopting the above technical solution, the internal tooth plate drives the driving gear to rotate, thereby driving the driven gear to rotate, and the connecting rod drives the push plate to move synchronously, thereby pushing the squeezed plastic products to prevent the plastic products from accumulating at the discharge port.

[0016] Optionally, the rotation angle of the push plate is 0°-180°, and the height of the push plate is higher than the height of the collection box.

[0017] By adopting the above technical solution and utilizing the setting of the push plate, the collection box can be easily taken out.

[0018] Optionally, an inclined slide plate is fixedly connected inside the collection box.

[0019] By adopting the above technical solution, the inclined slide plate facilitates the sliding of plastic products, further reducing the probability of products piling up at the discharge port and ensuring the smooth collection of products.

[0020] Optionally, the mold clamping mechanism further includes a limit screw rod and a mold clamping cylinder. The limit screw rod is fixedly connected between the fixed template and the inner wall of the injection molding box. The limit screw rod penetrates through the moving template, and the output shaft of the mold clamping cylinder is fixedly connected to the moving template.

[0021] By adopting the above technical solution, the mold clamping cylinder provides power, and the limit screw rod limits the movement of the moving template to ensure that it accurately clamps with the fixed template.

[0022] Optionally, cavities are provided inside both the movable rack and the ejector rod, and a through hole is provided at one end of the ejector rod close to the fixed template.

[0023] By adopting the above technical solution, it is convenient to add a cooling pipeline inside the movable rack and the ejector rod, and the cooling effect can also be improved during the ejection process.

[0024] Optionally, when the moving template and the fixed template are clamped, the ejector rod completely retracts into the moving template.

[0025] By adopting the above technical solution, it is ensured that the ejector rod will not affect the clamping of the moving template and the fixed template, and the production quality of the product is guaranteed.

[0026] Optionally, limit baffles are fixedly connected to both ends of the internal gear plate.

[0027] By adopting the above technical solution, the limit baffles are used to prevent the internal gear plate from sliding out of the injection molding box, ensuring...

[0028] In summary, the present invention includes at least one of the following beneficial technical effects:

[0029] 1. By utilizing the linkage between the linkage ejection mechanism and the moving template, during demolding, the plastic products staying on the moving template are ejected by the ejector rod, without the need for an independent power source and operating system, effectively reducing the cost of this injection molding machine. Moreover, during mold clamping and demolding, the linkage pushing mechanism replaces manual labor to synchronously push the ejected plastic products into the collection box, thereby reducing manual operation, reducing the labor burden, and preventing product piling up, which may hinder the collection of other products, ensuring the efficient production of plastic products, and solving the problems of the independent operation of the ejection structure of the existing injection molding machine, high cost, and the need for manual sorting of the injection-molded plastic products.

[0030] 2. By utilizing the synchronous movement among the linkage feeding mechanism, the linkage ejection mechanism and the moving template, the operation difficulty and production cost are greatly reduced. Without complex operations, it meets the usage requirements of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 FIG. 6 is a schematic perspective view of an injection molding machine for producing plastic products in this embodiment.

[0032] Figure 2 FIG. 10 is a schematic top view of an injection molding machine for producing plastic products in this embodiment.

[0033] Figure 3 FIG. 14 is a schematic sectional view of an injection molding machine for producing plastic products in this embodiment.

[0034] Figure 4 FIG. Figure 1 is an enlarged schematic view of part A in FIG.

[0035] Figure 5 FIG. 24 is a schematic partial view of the linkage ejection mechanism of an injection molding machine for producing plastic products in this embodiment.

[0036] DESCRIPTION OF REFERENCE NUMERALS:

[0037] 1, control console; 11, barrel; 12, screw feed pipe; 2, injection box; 21, fixed template; 22, moving template; 23, limit screw rod; 24, clamping cylinder; 3, extension plate; 4, linkage feeding mechanism; 41, rotating rod; 42, driven gear; 43, driving gear; 44, guide rail; 45, external tooth plate; 46, internal tooth plate; 47, connecting rod; 48, push plate; 5, linkage ejection mechanism; 51, fixing plate; 52, shaft rod; 53, linkage gear; 54, driving gear; 55, fixed rack; 56, movable rack; 57, ejector rod; 6, collection box; 61, inclined slide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following further describes the present invention in detail with reference to the Figures 1 - 5 drawings.

[0039] An embodiment of the present invention discloses an injection molding machine for producing plastic products.

[0040] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] Reference Figure 1 - Figure 5 , an injection molding machine for producing plastic products, comprising:

[0042] The control machine 1 has a spiral feed pipe 12 installed on the top thereof, and the top of the spiral feed pipe 12 is fixedly connected to the barrel 11, so that the raw materials can enter from the barrel 1 and be transported through the spiral feed pipe 12;

[0043] The injection molding box 2 is arranged at the discharge end of the spiral feed tube 12. A clamping mechanism is arranged in the injection molding box 2. The clamping mechanism includes a fixed mold plate 21 and a movable mold plate 22. The bottom end of the movable mold plate 22 is slidably connected to the inner wall of the injection molding box 2. The fixed mold plate 21 is fixedly connected to the spiral feed tube 12. After the fixed mold plate 21 and the movable mold plate 22 are clamped, the spiral feed tube 12 starts to inject the raw material for injection molding;

[0044] An extension plate 3, which is fixedly connected to the outer wall of the injection molding box 2;

[0045] A linkage pushing mechanism 4 is arranged on the injection molding box 2 and is drivingly connected to the movable mold plate 22 to facilitate pushing the products after injection molding to prevent the products from piling up at the discharge port;

[0046] A linkage ejection mechanism 5 is arranged inside the injection molding box 2. The linkage ejection mechanism 5 is transmission-connected with the movable mold plate 22. The linkage ejection mechanism 5 comprises a fixed plate 51 and a shaft 52. The fixed plate 51 is fixedly connected to the side of the movable mold plate 22 away from the fixed mold plate 21. The shaft 52 penetrates the fixed plate 51 and is rotationally connected to the fixed plate 51. A linkage gear 53 is coaxially fixedly connected to the middle of the shaft 52. A driving gear 54 is coaxially fixedly connected to both sides of the shaft 52. A fixed rack 55 meshing with the driving gear 54 is fixedly connected to the inner wall of the injection molding box 2. A slide rail is fixedly connected to the inner wall of the injection molding box 2. A movable rack 56 slidably connected to the linkage gear 53 is slidably connected in the slide rail. A push rod 57 is fixedly connected to one end of the movable rack 56.

[0047] The collecting box 6 is movably connected to the outside of the injection molding box 2 . Specifically, the connection between the two is a detachable connection, and the side of the collecting box 6 is connected to the discharge port of the injection molding box 2 .

[0048] Specifically, during operation, raw materials are poured into the barrel 11. The fixed template 21 and the moving template 22 are closed. The spiral feed pipe 12 injects the raw materials between the fixed template 21 and the moving template 22 to complete the injection molding of the product. After the product is cooled and solidified, the demolding operation is carried out. Specifically, first control the movement of the moving template 22. The moving template 22 drives the linkage pushing mechanism 4 and the linkage ejecting mechanism 5 to move synchronously, and simultaneously completes the operation of ejecting the product and pushing the product to complete collection. The specific operation of ejection is as follows: The moving template 22 drives the fixed plate 51 to move synchronously. The driving gears 54 at both ends of the shaft rod 52 are engaged with the fixed rack 55 to drive the shaft rod 52 to rotate, so that the linkage gear 53 rotates synchronously and meshes with the movable rack 56, causing the movable rack 56 to move and drive the ejector rod 57 to eject the product staying on the moving template 22. At the same time, the ejected product falls into the collection box 6 from the discharge port. The linkage pushing mechanism 4 pushes the product deeper into the collection box 6 with the next closing operation, preventing the products from piling up at the discharge port and affecting the discharge.

[0049] Referring to Figure 1 - Figure 3 , specifically, in the embodiment of the present invention, the linkage pushing mechanism 4 includes a rotating rod 41, a driven gear 42 and a driving gear 43. The rotating rod 41 is rotatably connected to the extension plate 3 in a penetrating manner. The driven gear 42 and the driving gear 43 are both coaxially fixed to the rotating rod 41, and the driven gear 42 and the driving gear 43 are located on both sides of the extension plate 3. A guide rail 44 is provided on the outer wall of the injection molding box 2. An external tooth plate 45 engaged with the driven gear 42 is slidably connected in the guide rail 44. An internal tooth plate 46 engaged with the driving gear 43 is slidably connected to the inner wall of the injection molding box 2. The internal tooth plate 46 is fixedly connected to the outer wall of the moving template 22. A chute is opened at the bottom side of the guide rail 44. A connecting rod 47 is slidably connected in the chute. One end of the connecting rod 47 is fixedly connected to the bottom end of the external tooth plate 45, and the other end is rotatably connected to a push plate 48. The rotation angle of the push plate 48 is 0°-180°, and the height of the push plate 48 is higher than the height of the collection box 6. An inclined slide plate 61 is fixedly connected to the inside of the collection box 6.

[0050] In the embodiment of the present invention, during use, the movement of the moving template 22 drives the movement of the internal tooth plate 46, so as to drive the rotating rod 41 to rotate through the engagement between the internal tooth plate 46 and the driving gear 43. The rotating rod 41 drives the driven gear 42 to rotate synchronously. The driven gear 42 meshes with the external tooth plate 45, causing the external tooth plate 45 to move synchronously in the opposite direction to the moving template 22. The moving template 22 drives the connecting rod 47 and the push plate 48 to move synchronously, pushing the movement of the product. Among them, the inclined slide plate 61 further improves the effect of preventing the products from piling up. After collecting the products, rotate the push plate 48 higher than the collection box 6 to facilitate the transfer of the collection box 6.

[0051] Referring to Figure 3, Specifically, in the embodiment of the present invention, the mold clamping mechanism further includes a limit screw rod 23 and a mold clamping cylinder 24. The limit screw rod 23 is fixedly connected between the fixed template 21 and the inner wall of the injection molding box 2. The limit screw rod 23 penetrates through the moving template 22, and the output shaft of the mold clamping cylinder 24 is fixedly connected to the moving template 22.

[0052] In the embodiment of the present invention, the moving template 22 is controlled by the mold clamping cylinder 24 to move along the limit screw rod 23 to ensure the stability and accuracy during mold clamping, thereby guaranteeing the production quality of the product.

[0053] Refer to Figure 3 , Specifically, in the embodiment of the present invention, cavities are provided inside both the movable rack 56 and the ejector rod 57, and a through hole is provided at one end of the ejector rod 57 close to the fixed template 21.

[0054] In the embodiment of the present invention, it is convenient to add air ducts inside the movable rack 56 and the ejector rod 57, so as to further strengthen the cooling of the product by ventilation while ejecting the material.

[0055] Refer to Figure 3 , Specifically, in the embodiment of the present invention, when the moving template 22 and the fixed template 21 are clamped, the ejector rod 57 is completely retracted into the moving template 22.

[0056] In the embodiment of the present invention, it is ensured that the ejector rod 57 will not affect the mold clamping of the moving template 22 and the fixed template 21, and the production quality of the product is guaranteed.

[0057] Refer to Figure 1 and Figure 3 , Specifically, in the embodiment of the present invention, limit baffles are fixedly connected to both ends of the internal gear plate 46.

[0058] In the embodiment of the present invention, the limit baffles are used to prevent the internal gear plate 46 from sliding out of the injection molding box 2 and limit the movement range of the internal gear plate 46.

[0059] The above are all preferred embodiments of the present invention. The protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An injection molding machine for producing plastic products, characterized in that: include: A control machine (1) is provided with a spiral feed pipe (12) on the top thereof, and the top of the spiral feed pipe (12) is fixedly connected to a barrel (11); An injection molding box (2) is arranged at the discharge end of the spiral feed pipe (12), and a mold clamping mechanism is arranged inside the injection molding box (2), and the mold clamping mechanism includes a fixed mold plate (21) and a movable mold plate (22), and the bottom end of the movable mold plate (22) is slidably connected to the inner wall of the injection molding box (2), and the fixed mold plate (21) is fixedly connected to the spiral feed pipe (12); An extension plate (3) fixedly connected to the outer wall of the injection molding box (2); A linkage material pushing mechanism (4) is arranged on the injection molding box (2) and is drivingly connected to the movable mold plate (22); A linkage ejection mechanism (5) is arranged inside the injection molding box (2). The linkage ejection mechanism (5) is transmission-connected with the movable mold plate (22). The linkage ejection mechanism (5) comprises a fixed plate (51) and a shaft rod (52). The fixed plate (51) is fixedly connected to a side of the movable mold plate (22) away from the fixed mold plate (21). The shaft rod (52) penetrates the fixed plate (51) and is rotationally connected to the fixed plate (51). A linkage gear (53) is coaxially fixedly connected to the middle of the shaft rod (52). A driving gear (54) is coaxially fixedly connected to both sides of the shaft rod (52). A fixed rack (55) meshing with the driving gear (54) is fixedly connected to the inner wall of the injection molding box (2). A slide rail is fixedly connected to the inner wall of the injection molding box (2). A movable rack (56) meshing with the linkage gear (53) is slidably connected in the slide rail. One end of the movable rack (56) is fixedly connected to a ejector rod (57). The collecting box (6) is movably connected to the outside of the injection molding box (2), and the side of the collecting box (6) is connected to the discharge port of the injection molding box (2).

2. An injection molding machine for producing plastic products according to claim 1, characterized in that: The linkage pushing mechanism (4) comprises a rotating rod (41), a driven gear (42) and a driving gear (43); the rotating rod (41) is connected to the extension plate (3) in a through-type rotational manner; the driven gear (42) and the driving gear (43) are both coaxially fixedly connected to the rotating rod (41); the driven gear (42) and the driving gear (43) are located on both sides of the extension plate (3); the outer wall of the injection molding box (2) is provided with a guide rail (44) which slides inside the guide rail (44). An outer tooth plate (45) meshing with a driven gear (42) is connected, an inner tooth plate (46) meshing with a driving gear (43) is slidably connected to the inner wall of the injection molding box (2), the inner tooth plate (46) is fixedly connected to the outer wall of the movable template (22), a sliding groove is provided on the bottom side of the guide rail (44), a connecting rod (47) is slidably connected in the sliding groove, one end of the connecting rod (47) is fixedly connected to the bottom end of the outer tooth plate (45), and the other end is rotatably connected to a push plate (48).

3. An injection molding machine for producing plastic products according to claim 2, characterized in that: The rotation angle of the push plate (48) is 0°-180°, and the height of the push plate (48) is higher than the height of the collection box (6).

4. An injection molding machine for producing plastic products according to claim 3, characterized in that: An inclined slide plate (61) is fixedly connected inside the collection box (6).

5. The injection molding machine for producing plastic products according to claim 1, characterized in that: The mold clamping mechanism also includes a limit screw (23) and a mold clamping cylinder (24); the limit screw (23) is fixedly connected between the fixed mold plate (21) and the inner wall of the injection molding box (2); the limit screw (23) passes through the movable mold plate (22); and the output shaft of the mold clamping cylinder (24) is fixedly connected to the movable mold plate (22).

6. The injection molding machine for producing plastic products according to claim 1, characterized in that: The movable rack (56) and the push rod (57) are both provided with cavities inside, and a through hole is provided at one end of the push rod (57) close to the fixed template (21).

7. The injection molding machine for producing plastic products according to claim 1, characterized in that: When the movable die plate (22) and the fixed die plate (21) are molded together, the ejector pin (57) is completely retracted into the interior of the movable die plate (22).

8. The injection molding machine for producing plastic products according to claim 1, characterized in that: Both ends of the inner tooth plate (46) are fixedly connected to limit baffles.

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