CN206510389U - Precise injection molding anti-buckling deformation device - Google Patents

Abstract

Precision injection molding anti-warping deformation device, including guide rail, lower plate, support frame and beam; two guide rails are laid on the workshop floor, the bottom of the lower plate is equipped with rollers rolling along the guide rail, the beam is parallel to the guide rail and the right end of the beam is connected to the upper end of the support frame Fixed connection, a lifting cylinder is fixed on the beam along the vertical direction, a number of lower support rods are evenly arranged on the upper surface of the lower plate, and two concave templates for placing injection molded parts are fixed on the lower rods, between the two concave templates It is connected through a connecting plate; the lower end of the lifting oil cylinder is provided with a mounting frame, and the bottom of the mounting frame is provided with two convex templates respectively corresponding to the upper and lower sides of a concave template. The utility model can place the injection molded parts that still have a relatively high temperature after precision injection molding into the utility model, and then cool them after being pressed, so as to fully improve the operation efficiency of the injection mold. The cold way can completely avoid the warping deformation of injection molded parts.

Description

Precision injection molding anti-warping deformation device

technical field

The utility model belongs to the technical field of precision injection molding, in particular to a precision injection molding anti-warping deformation device.

Background technique

Injection molding is a processing method used in the mass production of parts with complex shapes, mainly used in the industrial field. The injection molding process is to inject the heated and melted material into the cavity of the injection mold by high pressure, and after cooling and solidifying, plastic products are obtained.

After the precision injection molding process is over, the cooling process is also very important. Only when the molded plastic product is cooled and solidified to a certain rigidity, can the plastic product be prevented from being deformed due to external force after demoulding. Since the cooling time accounts for about 70% to 80% of the entire molding cycle, an improperly designed cooling system will lengthen the molding time and increase costs; uneven cooling will further cause warping of plastic products, especially thin-walled injection molded parts. Some of the existing cooling methods for injection molds use natural cooling, and some use cold water pipes in the lower fixed mold of the mold to cool down the area near the bottom of the cavity, so that the product can be cooled quickly, which reduces the cooling time to a certain extent. Time, but because the cooling area cannot completely cover the mold cavity, the cooling is uneven, and when the mold product is taken out, because the temperature of some parts of the plastic product is still high, warping and deformation will also occur. In addition, since the process from injection molding to cooling is all in the injection mold, it will be taken out after cooling until the injection molded product will not be deformed, which will occupy the injection mold for a long time, and then use the injection mold for the next injection operation, which will seriously Affect the working efficiency of injection mold.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a precision injection molding anti-warping deformation device. After injection molding in the injection mold, the injection molded product is immediately taken out and placed in the device for cooling. The cooling effect is good. High cooling efficiency to prevent warping of injection molded products and fully improve the operating efficiency of injection molds.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: a precision injection molding anti-warping deformation device, including a guide rail, a lower plate, a left vertical plate, a right vertical plate, a support frame and a beam;

There are two guide rails along the left and right horizontal directions. The two guide rails are laid on the workshop floor. The bottom of the lower plate is equipped with rollers rolling along the guide rails. The left vertical plate is vertically fixed on the upper surface of the left side of the lower plate. On the right upper surface of the lower plate, the bottom of the support frame is fixed on the right side of the two guide rails, the beam is parallel to the guide rails and the right end of the beam is fixedly connected to the upper end of the support frame, and a diagonal brace is provided between the bottom of the beam and the upper left side of the support frame. The upper part is fixed with a lifting oil cylinder along the vertical direction, and the upper surface of the lower plate is evenly provided with several lower support rods. , the shape of each concave formwork is the same as that of one side of the injection molded part and adapted; the right side of the left vertical plate is provided with a left support rod connected to the left side of the concave formwork, and the left side of the right vertical plate is provided with a concave formwork. The right pole connected to the right side, the lower end of the lifting cylinder is provided with a mounting frame, and the bottom of the mounting frame is provided with two convex plates corresponding to the upper and lower sides of a concave plate, and the shape of the lower part of the convex plate is the same as that of the other side of the injection molded part and adapt;

The left side of the right vertical plate is provided with a positioning oil cylinder along the vertical direction, and a guide hole is opened on the lower plate. The inner diameter of the guide hole is equal to the outer diameter of the piston rod of the positioning oil cylinder. The guide rail is provided with a positioning groove corresponding to the upper and lower sides of the positioning wheel. The positioning groove includes an upper conical section and a lower cylindrical section. The diameters are equal; when the piston rod of the positioning cylinder drives the positioning wheel to extend into the cylindrical section of the positioning groove, the two convex templates correspond to the two concave templates one by one.

A plurality of lower ventilation holes are evenly opened on the concave formwork, and first cooling fans are provided on the right side wall of the left vertical plate, the left side wall of the right vertical plate and the lower surface of the connecting plate between the two concave formworks.

The mounting frame is provided with a second heat dissipation fan located above the convex formwork, and several upper ventilation holes are evenly opened on the convex formwork.

A push-pull handrail is connected to the top of the left vertical board.

A buffer plate is connected to the left side of the support frame through at least four springs, and the buffer plate is arranged in parallel with the right vertical plate.

Using the above technical scheme, take out the two injection molded parts from the injection mold and place them in the two concave templates at the same time, and then hold the push-pull handle to push the two injection molded parts under the two convex templates along the guide rail, when the right After the vertical plate touches the buffer plate, start the positioning cylinder, the piston rod of the positioning cylinder elongates to drive the positioning wheel to extend into the cylindrical section of the positioning groove, so that the roller is stable on the guide rail, and then start the lifting cylinder, the piston of the lifting cylinder The rod drives the mounting frame and the two convex plates at the bottom of the mounting frame to move downward until the convex plate is tightly pressed to the upper surface of the upper injection molded part and the lifting cylinder stops. Then turn on the first heat dissipation fan and the second heat dissipation fan, and the heat of the injection molded part is dissipated outward through the upper air hole and the lower air hole. The heat is blown away by the first cooling fan and the second cooling fan, which fully improves the cooling efficiency. After cooling down to room temperature, turn off the first cooling fan and the second cooling fan, start the lifting cylinder, lift the concave plate upward, move to a certain height and stop, then open the positioning cylinder, drive the positioning wheel to pull out from the positioning slot, and hold the push-pull handle , pull out two injection molded parts along the guide rail, then put the injection molded parts to be shaped and cooled into the concave template, and repeat the above process.

The positioning groove is set on the guide rail, and the conical section on the upper part of the positioning groove is thick and thin at the top, so that when there is a certain deviation between the positioning wheel and the cylindrical section of the positioning groove, it can play a good guiding role and ensure that the positioning wheel extends into the positioning For the cylindrical section of the groove, the convex plate and the concave plate are in one-to-one correspondence, and the guide hole on the lower plate prevents oil leakage due to horizontal stress between the piston rod and the positioning cylinder.

The setting of the spring and the buffer plate not only serves to remind the workers that they have been pushed in place, but also avoids damage to the injection molded part, the first heat dissipation fan and the second heat dissipation fan due to the large momentum generated when the pushing speed is high.

The utility model is provided with two sets of concave templates and corresponding two sets of convex templates, so that two injection molded parts can be cooled at the same time to prevent warping and deformation, thereby improving production efficiency.

The utility model is equipped with guide rails in the workshop, which is convenient for transportation and operation when the injection molding machine is far away.

To sum up, the utility model has a reasonable design and a simple structure. The injection molded parts that still have a relatively high temperature after precision injection molding can be placed in the utility model to be pressed and cooled, so as to fully improve the operating efficiency of the injection mold. The method of precise positioning ensures that the compressed injection molded parts are air-cooled, which can completely avoid the warping deformation of the injection molded parts (thin-walled products).

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

As shown in Figure 1, the precision injection molding anti-warping deformation device of the present utility model includes a guide rail 1, a lower plate 2, a left vertical board 3, a right vertical board 4, a support frame 5 and a beam 6; There are two guide rails 1 laid on the floor of the workshop, the bottom of the lower plate 2 is provided with a roller 28 rolling along the guide rail 1, the left vertical plate 3 is vertically fixed on the upper surface of the left side of the lower plate 2, and the lower edge of the left vertical plate 3 is fixed Set on the upper surface of the right side of the lower plate 2, the bottom of the support frame 5 is fixed on the right side of the two guide rails 1, the cross beam 6 is parallel to the guide rails 1 and the right end of the cross beam 6 is fixedly connected to the upper end of the support frame 5, and the bottom of the cross beam 6 is connected to the left side of the support frame 5 Diagonal struts 7 are arranged between the upper parts, lifting oil cylinders 8 are fixed on the beam 6 along the vertical direction, several lower support rods 9 are uniformly arranged on the upper surface of the lower plate 2, and the lower support rods 9 are fixedly equipped with The two concave templates 11 of 10 are connected by a connecting plate 12 between the two concave templates 11. The shape of each concave template 11 is the same as that of one side of the injection molded part 10 and adapted; There is a left support rod 13 connected to the left side of the concave formwork 11, a right support rod 14 connected to the right side of the concave formwork 11 is provided on the left side of the right vertical plate 4, and a mounting frame 15 is provided at the lower end of the lifting cylinder 8, and the mounting frame 15 The bottom is provided with two convex templates 16 corresponding up and down to a concave template 11 respectively, and the shape of the lower part of the convex template 16 is the same as that of the other side of the injection molded part 10 and adapted.

Right vertical plate 4 left sides are provided with positioning oil cylinder 17 along vertical direction, offer guide hole 18 on lower plate 2, the inner diameter of guide hole 18 is equal to the outer diameter of the piston rod of positioning oil cylinder 17, the piston rod lower end of positioning oil cylinder 17 Positioning wheel 19 is rotated, and a guide rail 1 is provided with a positioning groove 20 corresponding up and down with the positioning wheel 19. The positioning groove 20 includes an upper conical section and a lower cylindrical section. The inner diameter of the lower end, the inner diameter of the cylindrical section and the outer diameter of the positioning wheel 19 are equal; Corresponding up and down one by one.

The concave formwork 11 is evenly provided with several lower ventilation holes 21, the right sidewall of the left vertical plate 3, the left sidewall of the right vertical plate 4 and the lower surface of the connecting plate 12 between the two concave formworks 11 are all provided with first heat dissipation fan22.

The mounting bracket 15 is provided with a second cooling fan 23 positioned above the convex formwork 16, and the convex formwork 16 is uniformly provided with several upper ventilation holes 24.

A push-pull handrail 25 is connected to the top of the left vertical board 3 .

A buffer plate 27 is connected to the left side of the support frame 5 through at least four springs 26, and the buffer plate 27 is arranged parallel to the right vertical plate 4.

When the utility model is used in work: take out the two injection molded parts 10 after injection molding from the injection mold and place them in the two concave templates 11 at the same time, then hold the push-pull handle and push the two injection molded parts 10 along the guide rail 1 to the two sides. Below the convex template 16, when the right vertical plate 4 touches the buffer plate 27, the positioning cylinder 17 is started, and the piston rod of the positioning cylinder 17 elongates to drive the positioning wheel 19 into the cylindrical section of the positioning groove 20, so that the roller 28 Stabilize on the guide rail 1, then start the lifting cylinder 8, the piston rod of the lifting cylinder 8 drives the mounting frame 15 and the two convex plates 16 at the bottom of the mounting frame 15 to move downward until the convex plate 16 is pressed tightly on the upper injection molded part 10 Surface lifting oil cylinder 8 stops. Then turn on the first heat dissipation fan 22 and the second heat dissipation fan 23, and the heat of the injection molded part 10 is dissipated outwards through the upper vent hole 24 and the lower vent hole 21. In addition, the concave mold plate 11 and the convex mold plate 16 are all made of aluminum alloy material , the thermal conductivity is good, and the dissipated heat is blown away by the first cooling fan 22 and the second cooling fan 23, which fully improves the cooling efficiency. After cooling to room temperature, turn off the first heat dissipation fan 22 and the second heat dissipation fan 23, start the lifting cylinder 8, lift the concave template 11 upwards, stop after moving to a certain height, then open the positioning cylinder 17, and drive the positioning wheel 19 from the positioning groove 20, hold the push-pull handle, pull out two injection molded parts 10 along the guide rail 1, then put the injection molded parts 10 to be shaped and cooled into the concave template 11, and repeat the above process.

The positioning groove 20 is set on the guide rail 1 and the conical section on the upper part of the positioning groove 20 is a thick upper and thinner structure, so that when there is a certain deviation between the positioning wheel 19 and the cylindrical section of the positioning groove 20, it plays a good guiding role and ensures positioning. When the wheel 19 stretches into the cylindrical section of the positioning groove 20, the convex plate 16 and the concave plate 11 correspond to each other up and down, and the guide hole 18 on the lower plate 2 prevents oil leakage due to horizontal stress between the piston rod and the positioning cylinder 17. .

The setting of spring 26 and buffer plate 27 not only plays the role of reminding the workers to push it in place, but also avoids the large momentum generated when the pushing speed is high, which will cause the injection molded part 10, the first heat dissipation fan 22 and the second heat dissipation fan 23 to be affected. damage.

This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model belong to the technology of the utility model. protection scope of the program.

Claims (5)

1. precise injection molding anti-buckling deformation device, it is characterised in that：Including guide rail, lower flat board, left riser, right riser, support frame And crossbeam；

Guide rail is provided with two along left and right horizontal direction, and two guide rails are laid on mill floor, and lower flat plate bottom is provided with along guide rail The roller of rolling, left riser is vertically fixed to be located at upper surface on the left of lower flat board, and left riser lower edge, which is fixed, to be located on the right side of lower flat board Upper surface, support frame bottom, which is fixed, to be located on the right side of two guide rails, and crossbeam and guide rail parallel and crossbeam right-hand member and support frame upper end are solid Fixed connection, is provided with hound, crossbeam between crossbeam bottom and support frame left upper portion and is vertically fixed with lifting oil Cylinder, lower flat board upper surface is uniformly provided with two cavity plates being fixed with several lower fulcrum bars, lower fulcrum bar for placing moulding Connected between plate, two concave templates by connecting plate, the shape of each concave template is identical with moulding side external form and is adapted to； Left riser right flank is provided with the left branching rod with being connected on the left of concave template, and right riser left surface is provided with the right side with being connected on the right side of concave template Pole, the lower end of hoist cylinder is provided with mounting bracket, and mounting bracket bottom is corresponding with above and below a concave template respectively provided with two Convex template, the shape of convex template bottom is identical with the opposite side external form of moulding and is adapted to；

Right riser left surface is vertically provided with positional cylinder, lower flat board and offers pilot hole, and the internal diameter of pilot hole is with determining The external diameter of the piston rod of position oil cylinder is equal, and the piston-rod lower end of positional cylinder is rotated to be provided with locating wheel, a guide rail and offered Locating slot corresponding with above and below locating wheel, locating slot includes the conical section on top and the cylindrical section of bottom, under conical section is presented slightly Fine texture, the external diameter of the bottom diameter of conical section, the internal diameter of cylindrical section and locating wheel is equal；When the piston rod of positional cylinder drives When locating wheel is extend into the cylindrical section of locating slot, two convex templates are corresponding up and down one by one with two concave templates.

2. precise injection molding anti-buckling deformation device according to claim 1, it is characterised in that：Uniformly offered on concave template Several lower air-vents, left riser right side wall, right riser left side wall and connecting plate lower surface between two concave templates are equal It is provided with the first radiator fan.

3. precise injection molding anti-buckling deformation device according to claim 1, it is characterised in that：Mounting bracket is provided with positioned at convex Air-vent on several is uniformly offered on the second radiator fan above template, convex template.

4. precise injection molding anti-buckling deformation device according to claim 1, it is characterised in that：It is connected with and pushes away at the top of left riser Draw handrail.

5. precise injection molding anti-buckling deformation device according to claim 1, it is characterised in that：Support frame is passed on left at least Four springs are connected with a block buffering plate, and buffer board be arranged in parallel with right riser.