Connecting mechanism for deformation of injection molding machine template

Abstract

The utility model discloses an injection molding machine template deformation connecting mechanism which comprises an injection molding machine body and a lower mold fixedly arranged at the upper end of the injection molding machine body, and further comprises an upper mold matched with the lower mold in an up-and-down butt joint mode, a mounting plate is fixedly connected to the upper end of the upper mold, and two sets of hydraulic cylinders are further fixedly mounted at the upper end of the injection molding machine body. The power ends of the two hydraulic cylinders are fixedly connected with hydraulic rods, the hydraulic rods at the bottoms of the two hydraulic cylinders are symmetrically arranged at the positions, close to the two sides, of the upper end of the mounting plate correspondingly, and the hydraulic rods are fixedly connected with the upper end of the mounting plate through connecting pieces. According to the utility model, the I-shaped connecting piece is additionally arranged between the hydraulic rod at the power end of the hydraulic cylinder and the mounting plate for mounting the upper die, so that when the two sides of the mounting plate deform in the die assembly extrusion process, the I-shaped connecting piece can compensate tiny deformation, and the hydraulic rod is prevented from generating tiny deformation along with the deformation of the mounting plate; and the hydraulic rod and the matched hydraulic cylinder are protected in a disguised manner, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of connectors for injection molding machines, and more particularly to a connection mechanism for deformation of a template of an injection molding machine. Background Art

[0002] When using injection molding or die casting technology to produce products, the movable mold and the fixed mold must first be combined to form a product cavity, and then the molten raw material is injected into the cavity and the product is formed under a certain pressure.

[0003] In the existing injection molding machine, during the mold closing process, the movable mold is installed at the bottom of the mounting plate and is driven up and down by a hydraulic cylinder. The fixed mold is fixed to the injection molding table. The hydraulic cylinder presses down the mounting plate and the movable mold docks with the fixed mold at the bottom to achieve mold closing and injection. The upper end of the mounting plate near both sides is connected to the driving end of the hydraulic cylinder. In this way, when the mold is closed, the two sides of the mounting plate will undergo slight deformation under the thrust of the hydraulic cylinder. Figure 1 As shown in the figure, in the mold clamping device of the injection molding machine in the prior art, the directions of the arrows P and Q are the deformation directions of the two sides of the mounting plate. As the two sides of the mounting plate deform slightly, since the path of the hydraulic cylinder is a straight line, the driving end of the hydraulic cylinder directly connected to the upper end of the mounting plate will also deform slightly. As time goes by, it will cause certain damage to the hydraulic cylinder and affect its service life. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] The purpose of the utility model is to provide a connection mechanism for deformation of the template of an injection molding machine, so as to solve the problem in the background art that slight deformation easily occurs on both sides of the mounting plate during the injection molding process, affecting the service life of the hydraulic cylinder.

[0006] 2. Technical solution

[0007] A connection mechanism for deformation of an injection molding machine template includes an injection molding machine body and a lower mold fixedly arranged at its upper end, and an upper mold docked with the lower mold up and down. The upper end of the upper mold is fixedly connected to a mounting plate. Two groups of hydraulic cylinders are also fixedly installed on the upper end of the injection molding machine body. The power ends of the two groups of hydraulic cylinders are fixedly connected to hydraulic rods. The hydraulic rods at the bottom of the two groups of hydraulic cylinders are symmetrically arranged at positions near both sides of the upper end of the mounting plate, and the hydraulic rods are fixedly connected to the upper end of the mounting plate by connecting parts.

[0008] Preferably, the connecting member includes a flange and a connecting block that are butt-jointed in the upper and lower parts. The flange and the connecting block are connected and supported by connecting edges, and the flange, the connecting block and the connecting edge are integrally formed.

[0009] Preferably, the upper end of the flange is butted against the bottom of the hydraulic rod, and the lower end of the connecting block is butted against the upper end of the mounting plate.

[0010] Preferably, threaded holes are provided on the outside of the flange and the connecting block, and high-strength bolts are threaded through the threaded holes on the outside of the flange and the connecting block. The flange at the upper end of the connecting piece is fixedly connected to the bottom of the hydraulic rod by high-strength bolts, and the connecting block at the bottom of the connecting piece is fixedly connected to the upper end of the mounting plate by high-strength bolts.

[0011] Preferably, an oil hole is provided on the outer side of the flange.

[0012] Preferably, the connecting piece is made of 45 steel.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The utility model is based on the traditional injection molding machine mold closing structure design and is improved on this basis, and an "I"-shaped connecting piece is added between the hydraulic rod at the power end of the hydraulic cylinder and the mounting plate for mounting the upper mold. Then, when the two sides of the mounting plate are deformed during the mold closing extrusion process, the "I"-shaped connecting piece can compensate for the slight deformation without affecting the path of the hydraulic rod, avoiding the slight deformation of the hydraulic rod as the mounting plate is deformed, thereby protecting the hydraulic rod and the supporting hydraulic cylinder in disguise and increasing their service life. The overall structural setting is simple and reasonable, the improvement cost is low, and it has a significantly improved practical effect, which is worthy of promotion and use in the existing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of a mold clamping device of an injection molding machine in the prior art;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the connector of the utility model;

[0019] Figure 4 This is a schematic diagram of the two-dimensional perspective structure of the connecting piece of the utility model.

[0020] Explanation of the numbers in the figure: 1-injection molding machine body, 2-lower mold, 3-hydraulic cylinder, 4-hydraulic rod, 5-mounting plate, 6-upper mold, 7-connecting piece, 701-flange, 702-connecting block, 703-connecting edge, 704-threaded hole, 705-oil hole. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships 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.

[0022] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0024] See also Figure 1-4 , a connection mechanism for deformation of an injection molding machine template, comprising an injection molding machine body 1 and a lower mold 2 fixedly arranged at its upper end, and an upper mold 6 docked with the lower mold 2, the upper end of the upper mold 6 is fixedly connected to a mounting plate 5, and two groups of hydraulic cylinders 3 are also fixedly installed on the upper end of the injection molding machine body 1, and the power ends of the two groups of hydraulic cylinders 3 are fixedly connected to hydraulic rods 4, and the hydraulic rods 4 at the bottom of the two groups of hydraulic cylinders 3 are symmetrically arranged at positions near both sides of the upper end of the mounting plate 5, and the hydraulic rods 4 are fixedly connected to the upper end of the mounting plate 5 by a connecting piece 7; the connecting piece 7 comprises a flange 701 and a connecting block 702 docked at upper and lower ends, the flange 701 and the connecting block 7 02 are connected and supported by a connecting rib 703, and the flange 701, the connecting block 702, and the connecting rib 703 are formed as one piece. The upper end of the flange 701 is connected to the bottom of the hydraulic rod 4, and the lower end of the connecting block 702 is connected to the upper end of the mounting plate 5. Threaded holes 704 are provided on the outside of the flange 701 and the connecting block 702, and high-strength bolts are threaded through the threaded holes 704 on the outside of the flange 701 and the connecting block 702. The flange 701 at the upper end of the connecting piece 7 is fixedly connected to the bottom of the hydraulic rod 4 by high-strength bolts, and the connecting block 702 at the bottom of the connecting piece 7 is fixedly connected to the upper end of the mounting plate 5 by high-strength bolts.

[0025] Based on the above structure, the present device adds an "I"-shaped connecting piece 7 between the hydraulic rod 4 and the mounting plate 5. The connecting piece 7 is composed of a flange 701, a connecting block 702 and a connecting ridge 703 between the flange 701 and the connecting block 702. The flange 701 and the connecting block 702 act as connecting media and are respectively connected to the hydraulic rod 4 and the mounting plate 5 with high-strength bolts. In this way, when the hydraulic cylinder 3 presses down the hydraulic rod 4 to push the mounting plate 5 down straight for mold closing, the force on both sides of the mounting plate 5 is slightly offset. At this time, the slight deformation on both sides of the upper end of the mounting plate 5 will not directly affect the path of the hydraulic rod 4, but will be transmitted to the connecting piece 7. The connecting ridge 703 in the connecting piece 7 will bend slightly, thereby compensating for the slight deformation of the upper end of the mounting plate 5, and will not affect the hydraulic rod 4 at the upper end, thereby protecting the hydraulic rod and the matching hydraulic cylinder in disguise and increasing their service life.

[0026] An oil hole 705 is provided on the outer side of the flange 701 .

[0027] The connecting piece 7 is made of 45# steel.

[0028] Among them, it should be added that the longitudinal position of the connecting edge 703 is not at the center of the flange 701 and the connecting block 702, but at an eccentric position. In addition, when designing the connecting edge 703, engineers are required to perform strength verification based on the output of the cylinder. The pulling and pressing operations of the hydraulic rod 4 on the connecting part 7 must be verified and calculated to ensure that they meet actual usage requirements.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection mechanism for deformation of a template of an injection molding machine, comprising an injection molding machine body (1) and a lower mold (2) fixedly arranged at the upper end thereof, and also comprising an upper mold (6) docked with the lower mold (2) at the upper and lower ends, wherein the upper end of the upper mold (6) is fixedly connected to a mounting plate (5), characterized in that: Two groups of hydraulic cylinders (3) are also fixedly mounted on the upper end of the injection molding machine body (1), and the power ends of the two groups of hydraulic cylinders (3) are fixedly connected to hydraulic rods (4). The hydraulic rods (4) at the bottom of the two groups of hydraulic cylinders (3) are symmetrically arranged at positions close to both sides of the upper end of the mounting plate (5), and the hydraulic rods (4) are fixedly connected to the upper end of the mounting plate (5) via a connecting piece (7).

2. The connection mechanism for deformation of a template of an injection molding machine according to claim 1, characterized in that: The connecting member (7) comprises a flange (701) and a connecting block (702) that are butt-jointed with each other. The flange (701) and the connecting block (702) are connected and supported by a connecting ridge (703). The flange (701), the connecting block (702), and the connecting ridge (703) are integrally formed.

3. The connection mechanism for deformation of a template of an injection molding machine according to claim 2, characterized in that: The upper end of the flange (701) is butted against the bottom of the hydraulic rod (4), while the lower end of the connecting block (702) is butted against the upper end of the mounting plate (5).

4. The connection mechanism for deformation of a template of an injection molding machine according to claim 3, characterized in that: The flange (701) and the connecting block (702) are both provided with threaded holes (704) on their outer sides, and high-strength bolts are threadedly inserted into the threaded holes (704) on the outer sides of the flange (701) and the connecting block (702). The flange (701) at the upper end of the connecting member (7) is fixedly connected to the bottom of the hydraulic rod (4) by means of high-strength bolts, and the connecting block (702) at the bottom of the connecting member (7) is fixedly connected to the upper end of the mounting plate (5) by means of high-strength bolts.

5. The connection mechanism for deformation of a template of an injection molding machine according to claim 4, characterized in that: An oil hole (705) is provided on the outer side of the flange (701).

6. The connection mechanism for deformation of a template of an injection molding machine according to claim 5, characterized in that: The connecting piece (7) is made of 45# steel.

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