An injection mold for refrigerator drawer molding

Abstract

The present invention discloses an injection mold for forming a refrigerator drawer, comprising a static mold, a dynamic mold and a shell, wherein the static mold is mounted on an inner wall of one side of the shell, the interior of the shell is connected to a movable seat through a plurality of telescopic columns, a plurality of guide rods are mounted on one side of the movable seat, the dynamic mold is mounted on the outer wall of the plurality of guide rods, an automatic ejecting device is mounted between the dynamic mold and the movable seat, a movable plate is arranged inside the shell, an auxiliary detection mechanism is arranged on the top of the movable plate, and a driving mechanism is arranged inside the shell. In the invention, before the dynamic mold drives the refrigerator drawer to move out of the static mold, two clamping plates of the control driving mechanism are located on both sides of the dynamic mold, and after the automatic ejecting device ejects the refrigerator drawer, the two clamping plates can clamp and fix the refrigerator drawer, and drive the refrigerator drawer to move downward to the top of the placement plate together, so as to achieve the effect of flexible unloading of the refrigerator drawer, and avoid the refrigerator drawer from automatically falling downward, which affects the quality of the refrigerator drawer.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to an injection mold for molding a refrigerator drawer. Background Art

[0002] Injection molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products complete configurations and precise dimensions. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse. Usually, injection molds are composed of several groups of parts, and this combination contains a molding cavity. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity, where it is cooled and shaped. Then the movable mold and the fixed mold are separated, and the product is ejected from the mold cavity by the ejection system. Finally, the mold is closed for the next injection molding. The entire injection molding process is carried out in a cycle.

[0003] After the injection mold in the prior art is used to injection-mold the refrigerator drawer, the refrigerator drawer is automatically pushed down from the surface of the movable mold by the ejection system. Since no other mechanism that can assist the flexible unloading of the refrigerator drawer is provided inside the injection molding machine housing, the surface of the refrigerator drawer can easily collide with the inner wall of the injection molding machine housing and be scratched during the automatic downward falling process, thereby affecting the yield rate of the refrigerator drawer injection-molded by the entire injection mold and reducing the applicability of the injection mold in actual use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide an injection mold for forming a refrigerator drawer.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An injection mold for forming a refrigerator drawer comprises a static mold, a dynamic mold and a shell, wherein the static mold is mounted on an inner wall of one side of the shell, the interior of the shell is connected to a movable seat via a plurality of telescopic columns, a plurality of guide rods are mounted on a side of the movable seat away from the telescopic columns, the dynamic mold is mounted on an outer wall of the plurality of guide rods, an automatic ejecting device is mounted between the dynamic mold and the dynamic seat, a dynamic plate is arranged inside the shell and below the static mold and the dynamic mold, an auxiliary detection mechanism for detecting the four sides of an injection-molded component is arranged on the top of the dynamic plate, and a driving mechanism for driving the injection-molded component to rotate to a horizontal state is arranged inside the shell and above the static mold and the dynamic mold.

[0007] Optionally, the inner walls on both sides of the shell are provided with a plurality of first slide grooves, the first slide blocks are installed inside the plurality of first slide grooves, and the outer walls on both sides of the movable plate are respectively connected to one end of the plurality of first slide blocks away from the first slide grooves.

[0008] Optionally, the auxiliary detection mechanism includes a plurality of second slide grooves opened on the top of the movable plate, a second slide block is installed inside each of the plurality of second slide grooves, the tops of two matching second slide blocks are commonly connected to a first movable strip, a first double-headed screw is rotatably installed inside each of the two first movable strips, and two first movable blocks are symmetrically installed on the outer walls of the two first double-headed screws.

[0009] Optionally, the top ends of the two first moving blocks are rotatably mounted with a rotating seat via a first rotating shaft, rotating blocks are rotatably mounted inside the two rotating seats, and the outer walls of the two rotating blocks on one side away from the rotating seat are connected to a rotating rod via an electric telescopic rod.

[0010] Optionally, a third sliding groove is opened on the outer wall on the same side of the two rotating rods, a third sliding block is installed inside the two third sliding grooves, a rotating plate is rotatably installed on the end of the two third sliding blocks away from the third sliding groove, and a vacuum suction cup is installed on the outer wall on the side away from the two rotating plates.

[0011] Optionally, an air outlet is installed on the outer wall of the two rotating rods on the side away from each other, and an electric heating block is preset inside the side of the two rotating rods close to the air outlet.

[0012] Optionally, a placement plate is rotatably mounted on the top of the movable plate, and the placement plate is located between the two first movable strips.

[0013] Optionally, the driving mechanism includes a fourth slide groove opened on the top surface of the shell, a fourth slider is installed inside the fourth slide groove, a second movable strip is installed at the bottom end of the fourth slider, a second double-headed screw is rotatably installed inside the second movable strip, and two second movable blocks are symmetrically installed on the outer wall of the second double-headed screw.

[0014] Optionally, the bottom ends of the two second movable blocks are rotatably mounted with a first rectangular rod via a second rotating shaft, the outer walls on the side where the two first rectangular rods are close to each other are provided with a first guide groove, the insides of the two first guide grooves are each mounted with a first sliding block, and the ends of the two first sliding blocks away from the first guide groove are each mounted with a second rectangular rod.

[0015] Optionally, the outer walls of the two second rectangular rods adjacent to each other are each provided with a second guide groove, a second sliding block is installed inside the two second guide grooves, and a clamp is rotatably installed on one end of the two second sliding blocks away from the second guide groove via a third rotating shaft.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the invention, before the movable mold drives the refrigerator drawer to move out from the interior of the static mold, the two clamping plates of the driving mechanism can be controlled to be located in the gap between the two groups of guide rods and the movable mold. After the automatic lifting device pushes the refrigerator drawer, the two clamping plates can clamp and fix the refrigerator drawer, and as the second sliding block moves downward inside the second guide groove, the clamped refrigerator drawer is driven to move downward together. The two clamping plates are controlled to rotate, driving the refrigerator drawer to rotate to a horizontal state and fall on the top of the placement plate, thereby achieving the effect of flexible material discharge for the refrigerator drawer, preventing the refrigerator drawer from automatically falling downward, and preventing its outer wall from being bumped or scratched, thereby affecting the quality of the refrigerator drawer.

[0018] 2. In the present invention, after the refrigerator drawer falls on the top of the placement plate, the flatness of the edges on both sides of the refrigerator drawer is detected with the help of the auxiliary detection mechanism arranged on the top of the movable plate; and after detecting both sides of the refrigerator drawer, by controlling the two first movable strips to move in directions away from each other, the placement plate is controlled to drive the refrigerator drawer to rotate, so that the other two sides of the refrigerator drawer are close to the two groups of rotating rods, and the edge positions of the other two sides of the refrigerator drawer are continuously detected; if it is detected that there is a defect in the flatness of the edge of the refrigerator drawer, one group of rotating rods on the left side can be controlled to rotate downward in a direction away from the movable plate to a horizontal state, the first movable strip on the right side can be controlled to drive the other group of rotating rods to push the refrigerator drawer on the top of the placement plate to the top of the two rotating rods on the left side in a horizontal state, and the electric telescopic rod is controlled to drive the refrigerator drawer to be automatically discharged from the inside of the shell to the outside, thereby achieving the effect of automatically classifying and discharging unqualified refrigerator drawers.

[0019] 3. In the invention, before the mold is used, the two first double-headed screws are controlled to drive the distance between the two corresponding rotating rods to be adjusted, and then the two first movable strips are controlled to move in a direction close to each other, driving the two groups of rotating rods to contact the movable mold and the static mold respectively, so that the heat generated by the electric heating block can be used to preheat the movable mold and the static mold, which is convenient for the subsequent cooperation between the movable mold and the static mold to perform injection molding of the refrigerator drawer.

[0020] 4. In the present invention, since cleaning pads are arranged on the sides where the two splints are close to each other, when there is water vapor on the inner walls of the transparent observation windows arranged on the front and rear sides of the shell, which affects the staff's observation of the injection molding status of the refrigerator drawer, the two first rectangular rods are controlled to drive the two splints to rotate. At this time, the two splints are respectively close to the transparent observation windows on the front and rear sides of the shell, and the two splints are respectively driven to contact the inner walls of the two transparent observation windows with the help of the second double-headed screw. With the help of the downward movement of the second rectangular rod and the second sliding block, the splints are conveniently driven to clean the transparent observation windows in the up and down directions; the fourth slider moves back and forth inside the fourth slide groove, driving the splints to clean the transparent observation windows in the left and right directions, so that the staff can monitor the injection molding status of the refrigerator drawer in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of an injection mold for forming a refrigerator drawer proposed by the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure after the plurality of rotating rods are rotated downward;

[0024] Figure 3 It is a schematic diagram of the structure inside the shell of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the movable mold and the static mold in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the driving mechanism in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the second double-headed screw and the second moving block in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the first sliding block and the second sliding block in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the first guide groove and the second guide groove in the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the movable plate in the present invention;

[0031] Fig.10 It is a schematic structural diagram of two first movable strips in the present invention;

[0032] Fig.11 It is a schematic structural diagram of the first double-headed screw and the first moving block in the present invention;

[0033] Fig.12 It is a schematic structural diagram of the rotating rod and the rotating plate in the present invention.

[0034] In the figure: 1, shell; 2, static mold; 3, dynamic mold; 4, moving seat; 5, automatic ejecting device; 6, first slide; 7, moving plate; 8, guide rod; 9, fourth slide; 10, fourth slider; 11, second moving strip; 12, first rectangular rod; 13, clamping plate; 14, second rectangular rod; 15, second double-headed screw; 16, second moving block; 17, second guide groove; 18, second sliding block; 19, first sliding block; 20, first guide groove; 21, first moving strip; 22, rotating rod; 23, second slide; 24, placement plate; 25, second slider; 26, third slide; 27, rotating plate; 28, air outlet; 29, first double-headed screw; 30, first moving block; 31, rotating seat; 32, rotating block; 33, electric telescopic rod; 34, third slider; 35, vacuum suction cup. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Figure 1-Figure 12 An injection mold for forming a refrigerator drawer comprises a static mold 2, a dynamic mold 3 and a shell 1, wherein the static mold 2 is mounted on an inner wall of one side of the shell 1, the interior of the shell 1 is connected with a moving seat 4 through a plurality of telescopic columns, a plurality of guide rods 8 are mounted on the side of the moving seat 4 away from the telescopic columns, the dynamic mold 3 is mounted on the outer wall of the plurality of guide rods 8, an automatic ejecting device 5 is mounted between the dynamic mold 3 and the moving seat 4, a moving plate 7 is arranged inside the shell 1 and below the static mold 2 and the dynamic mold 3, an auxiliary detection mechanism for detecting the four sides of the injection molded component is arranged on the top of the moving plate 7, and a driving mechanism for driving the injection molded component to rotate to a horizontal state is arranged inside the shell 1 and above the static mold 2 and the dynamic mold 3.

[0037] As a technical optimization solution of the present invention, multiple first slide grooves 6 are provided on both inner walls of the housing 1, first sliders are installed inside the multiple first slide grooves 6, and the outer walls on both sides of the movable plate 7 are respectively connected to one end of the multiple first sliders away from the first slide grooves 6. First linear motors are preset inside the multiple first slide grooves 6, and the first linear motors can drive the first sliders to move up and down in the first slide grooves 6, thereby driving the movable plate 7 to move up and down inside the housing 1.

[0038] As a technical optimization scheme of the present invention, the auxiliary detection mechanism includes a plurality of second chutes 23 opened at the top of the moving plate 7, a second slider 25 is installed inside the plurality of second chutes 23, the tops of two matched second sliders 25 are commonly connected to the first moving strip 21, the first double-headed screw 29 is rotatably installed inside the two first moving strips 21, and the outer walls of the two first double-headed screws 29 are symmetrically installed with two first moving blocks 30. A second linear motor is preset inside the plurality of second chutes 23, and the second linear motor can drive the second slider 25 to move back and forth inside the second chutes 23, thereby driving the two first moving strips 21 to move back and forth on the top of the moving plate 7; a first driving motor is preset on the outer wall of one side of the first moving strip 21, and the output end of the first driving motor is connected to one end of the first double-headed screw 29, so as to drive the first double-headed screw 29 to rotate inside the first moving strip 21, so that the two first moving blocks 30 can move in a direction of approaching or moving away from each other.

[0039] As a technical optimization scheme of the present invention, the top ends of the two first moving blocks 30 are both rotatably mounted with a rotating seat 31 through a first rotating shaft, the insides of the two rotating seats 31 are both rotatably mounted with a rotating block 32, and the outer walls of the two rotating blocks 32 on one side away from the rotating seat 31 are both connected to the rotating rod 22 through an electric telescopic rod 33. A first servo motor is preset inside the two first moving blocks 30, and the output end of the first servo motor is connected to the first rotating shaft, so as to drive the rotating seat 31 to rotate; the rotating block 32 is rotatably connected to the rotating seat 31 through the electric rotating shafts set at both ends, and the electric rotating shaft can be driven by a second driving motor preset outside, so as to drive the rotating block 32 to rotate inside the rotating seat 31; a circular cavity is pre-opened inside the rotating rod 22, and the telescopic end of the electric telescopic rod 33 is connected to the inner wall of the circular cavity, and the electric telescopic rod 33 can be stored inside the circular cavity.

[0040] As a technical optimization solution of the present invention, the outer wall of the same side of the two rotating rods 22 is provided with a third slide groove 26, and the inside of the two third slide grooves 26 is provided with a third slider 34, and the ends of the two third sliders 34 away from the third slide groove 26 are both rotatably provided with a rotating plate 27, and the outer wall of the two rotating plates 27 away from each other is provided with a vacuum suction cup 35. A double-headed screw is preset inside the third slide groove 26, and the two ends of the double-headed screw pass through the two third sliders 34 respectively, and one end of the double-headed screw is connected to the output end of the preset third driving motor, thereby driving the two third sliders 34 to move in the direction of approaching or moving away from each other inside the third slide groove 26; the two ends of the rotating plate 27 are rotatably connected with the third slider 34 through an electric rotating shaft, and the electric rotating shaft can be driven by a second servo motor preset outside, thereby driving the rotating plate 27 to rotate.

[0041] As a technical optimization solution of the present invention, the outer wall of the two rotating rods 22 on the side away from each other is installed with an air outlet 28, and the inner side of the two rotating rods 22 close to the air outlet 28 is preset with an electric heating block. The air outlet 28 can be connected to the external air outlet mechanism through a pipeline, and through the electric heating block arranged inside the rotating rod 22, the air outlet 28 can blow out hot air with heat.

[0042] As a technical optimization solution of the present invention, a placement plate 24 is rotatably installed on the top of the moving plate 7, and the placement plate 24 is located between the two first moving strips 21. The parts to be inspected are placed on the top of the placement plate 24 through the driving mechanism, and a third servo motor is preset inside the moving plate 7. The output end of the third servo motor is connected to the center position of the placement plate 24, thereby driving the placement plate 24 to rotate together with the parts on the top of the moving plate 7.

[0043] As a technical optimization solution of the present invention, the driving mechanism includes a fourth slide groove 9 opened on the top surface of the housing 1, a fourth slider 10 is installed inside the fourth slide groove 9, a second moving strip 11 is installed at the bottom end of the fourth slider 10, a second double-headed screw 15 is rotatably installed inside the second moving strip 11, and two second moving blocks 16 are symmetrically installed on the outer wall of the second double-headed screw 15. A fourth linear motor is preset inside the fourth slide groove 9, and the fourth linear motor can drive the fourth slider 10 to move back and forth inside the fourth slide groove 9, thereby driving the second moving strip 11 to move back and forth on the inner top surface of the housing 1; a first driving device is preset on the outer wall of one side of the second moving strip 11, and the output end of the first driving device is connected to one end of the second double-headed screw 15, thereby driving the second double-headed screw 15 to rotate inside the second moving strip 11, and driving the two second moving blocks 16 to move in a direction away from or close to each other.

[0044] As a technical optimization solution of the present invention, the bottom ends of the two second moving blocks 16 are both rotatably mounted with the first rectangular rod 12 through the second rotating shaft, the outer walls of the two first rectangular rods 12 on the side close to each other are both provided with a first guide groove 20, the first sliding blocks 19 are both installed inside the two first guide grooves 20, and the second rectangular rod 14 is both installed at the ends of the two first sliding blocks 19 away from the first guide groove 20. A second driving device is preset inside the two second moving blocks 16, and the output end of the second driving device is connected to the second rotating shaft, thereby driving the first rectangular rod 12 to rotate; a first driving screw is preset inside the first guide groove 20, one end of the first driving screw passes through the first sliding block 19, and one end of the first driving screw is connected to the preset first driving device, thereby driving the first sliding block 19 and the second rectangular rod 14 to move up and down inside the first guide groove 20.

[0045] As a technical optimization solution of the present invention, the outer wall of the side where the two second rectangular rods 14 are close to each other is provided with a second guide groove 17, and the second sliding block 18 is installed inside the two second guide grooves 17. The ends of the two second sliding blocks 18 away from the second guide groove 17 are rotatably installed with the clamping plate 13 through the third rotating shaft. A second driving screw is preset inside the second guide groove 17, one end of the second driving screw passes through the second sliding block 18, and one end of the second driving screw is connected to the preset second driving device, thereby driving the second sliding block 18 and the clamping plate 13 to move up and down; a third driving device is preset inside the second sliding block 18, and the output end of the third driving device is connected to the third rotating shaft, thereby driving the clamping plate 13 to rotate.

[0046] In the present invention, a screw feeder is arranged on the right side of the shell 1. During the process of injection molding of the components, a plurality of telescopic columns push the movable mold 3 to connect with the static mold 2. The screw feeder conveys the melted plastic liquid to the inside of the static mold 2. The plastic liquid is quickly cooled by the cooling system inside the static mold 2, so that the refrigerator drawer can be formed inside the static mold 2. The plurality of telescopic columns are controlled to contract to drive the movable seat 4 and the movable mold 3 to move together in a direction away from the static mold 2, so that the molded refrigerator drawer is attached to the outer wall of the movable mold 3 and discharged together, and the refrigerator drawer is automatically pushed down from the outer wall of the movable mold 3 by the automatic ejecting device 5.

[0047] Before the movable mold 3 drives the refrigerator drawer to move out of the interior of the static mold 2, the second double-headed screw 15 can be controlled to drive the two second moving blocks 16 and other components to move in the approaching direction, so that the two clamping plates 13 are located in the gap position between the two sets of guide rods 8 and the movable mold 3, and the first sliding block 19 is controlled to move downward inside the first guide groove 20 to drive the two clamping plates 13 to move downward to both sides of the movable mold 3. After the movable mold 3 drives the refrigerator drawer to move between the two clamping plates 13, the two second moving blocks 16 are continuously controlled to drive the two clamping plates 13 to move in the approaching direction until the two clamping plates 13 are close to each other. One side outer wall contacts the two side outer walls of the refrigerator drawer. After the automatic lifting device 5 pushes the refrigerator drawer up, the two clamping plates 13 can clamp and fix the refrigerator drawer, and as the second sliding block 18 moves downward inside the second guide groove 17, the clamped refrigerator drawer is driven to move downward together, and the two clamping plates 13 are controlled to rotate, driving the refrigerator drawer to rotate to a horizontal state and fall on the top of the placement plate 24, so as to achieve the effect of flexible loading of the refrigerator drawer, and avoid the refrigerator drawer from automatically falling downward, and its outer wall collides with the inner wall of the shell 1, resulting in bumps and scratches, which affects the quality of the refrigerator drawer.

[0048] After the refrigerator drawer falls on the top of the placement plate 24, the multiple rotating rods 22 located on the top of the moving plate 7 are in a state of being Fig. 9In the state shown, the two first moving strips 21 are controlled to move in the direction of approaching each other, and the two third sliders 34 and the rotating plate 27 on the outer wall of one side of the multiple rotating rods 22 are controlled to move in the direction of approaching each other, so that the outer walls of the multiple groups of rotating plates 27 on the side close to each other are all in contact with the top edge of the refrigerator drawer, and the two first double-headed screws 29 are controlled to drive the two corresponding rotating rods 22 to move in the direction of moving away from each other, and drive the multiple rotating plates 27 to move horizontally on the two side edges of the refrigerator drawer, and the flatness of the two side edges of the refrigerator drawer is detected by means of the displacement sensor preset inside the rotating plate 27; and after detecting the two sides of the refrigerator drawer, by controlling the two first moving strips 21 to move in the direction of moving away from each other, the placing plate 24 is controlled to drive the refrigerator drawer to rotate, so that the other two sides of the refrigerator drawer are close to the two groups of rotating rods 22, and the edge positions of the other two sides of the refrigerator drawer are continued to be detected.

[0049] If it is detected that there is a defect in the flatness of the edge of the refrigerator drawer, one group of rotating rods 22 on the left side can be controlled to rotate downward in a direction away from the movable plate 7 to a horizontal state, and the first movable strip 21 on the right side can be controlled to drive another group of rotating rods 22 to push the refrigerator drawer on the top of the placement plate 24 to the top of the two rotating rods 22 on the left side in a horizontal state, and the telescopic ends of the two electric telescopic rods 33 on the left side are controlled to extend, driving the refrigerator drawer to be automatically discharged from the inside of the shell 1 to the outside, thereby achieving the effect of automatically classifying and discharging unqualified refrigerator drawers.

[0050] For example, when the refrigerator drawer is falling off from the surface of the movable mold 3, the automatic ejecting device 5 fails, so that the refrigerator drawer can no longer be automatically ejected. At this time, the two first movable strips 21 can be controlled to move in a direction close to each other, driving the two groups of rotating rods 22 to move to the bottom of the movable mold 3, and then the two rotating rods 22 on the right side are controlled to rotate upward to a vertical state, so that the two rotating rods 22 in a vertical state are located between the two groups of guide rods 8, and then the two rotating plates 27 on one side of the two rotating rods 22 are controlled to rotate in a direction close to each other, driving the vacuum suction cups 35 provided on the outer walls of the two rotating plates 27 to be located on the rotating rods 22, at this time, the movable mold 3 drives the plastic part to be located in the center position of the shell 1, and controls the two first movable strips 21 and the two rotating rods 22 to move in the direction of approaching each other, until the two vacuum suction cups 35 on the side close to the two rotating rods 22 are in contact with and adsorbed on the outer walls of the refrigerator drawer on both sides, and then controls the two first double-headed screws 29 to rotate, driving the two rotating rods 22 and the vacuum suction cups 35 to move away from the movable mold 3, and taking advantage of the situation to pull the refrigerator drawer attached to the surface of the movable mold 3, thereby automatically removing the refrigerator drawer from the surface of the movable mold 3, thereby avoiding the problem that the refrigerator drawer cannot be removed after the automatic ejecting device 5 is damaged.

[0051] For example, when the refrigerator drawer adheres to the inner wall of the static mold 2 after molding, and the dynamic mold 3 cannot drive the refrigerator drawer to move out together, the two rotating rods 22 on the right side can be controlled to move to the position between the two sets of guide rods 8, and the two rotating seats 31 can be controlled to drive the two rotating rods 22 to rotate, so that the two rotating plates 27 on one side of the two rotating rods 22 rotate close to the static mold 2, and the height of the rotating rods 22 is adjusted by the telescopic ends of the two electric telescopic rods 33, so that the rotating rods 22 can move upward to a height suitable for the static mold 2, and the first double-headed screw 29 can be controlled to rotate to drive the two rotating rods 22 to move to a position abutting against the static mold 2. , so that the rotating plate 27 in a horizontal state on one side of the two rotating rods 22 enters the interior of the static mold 2, and the two rotating plates 27 are driven to move in directions away from each other by controlling the two third sliders 34, so that the vacuum suction cups 35 arranged on the sides of the two rotating plates 27 away from each other can contact and adsorb with the inner top surface and the inner bottom surface of the refrigerator drawer. With the rotation of the first double-headed screw 29, the two rotating rods 22 on the right side are driven to move toward the left side, and the refrigerator drawer adsorbed by the vacuum suction cups 35 is pulled off from the inner wall of the static mold 2, so as to achieve the effect of assisting the removal of the refrigerator drawer that cannot be automatically discharged from the inner wall of the static mold 2, thereby avoiding affecting the subsequent molding efficiency of the refrigerator drawer.

[0052] When the refrigerator drawer cannot be pulled out by the vacuum suction cup 35 driven by the two rotating rods 22, the staff needs to cut off the power to the injection mold, and then manually clean the refrigerator drawer inside the static mold 2. In order to ensure the safety of the staff manually cleaning the refrigerator drawer, after controlling the distance between the movable mold 3 and the static mold 2 to be the maximum distance, the fourth slider 10 is controlled to drive the multiple components below to move in the direction close to the movable mold 3 inside the fourth slide groove 9, and after the two first rectangular rods 12 are in a close position to the movable mold 3, the second double-headed screw 15 is controlled to drive the two first rectangular rods 12 to move toward the movable mold 3. The rectangular rods 12 and other components move together in the approaching direction, so that the two first rectangular rods 12 and other components are located between the movable mold 3 and the static mold 2, and the outer wall of the movable mold 3 close to the static mold 2 is in contact with the two first rectangular rods 12. At this time, the two first rectangular rods 12 and other components can limit the trajectory of the movable mold 3 moving toward the static mold 2, thereby preventing the staff from accidentally touching the start button of the injection mold during the cleaning of the refrigerator drawer attached to the inner wall of the static mold 2, causing the movable mold 3 to move toward the static mold 2, causing harm to the staff, thereby further protecting the safety of the staff.

[0053] Furthermore, after the staff has finished cleaning the refrigerator drawer attached to the inside of the static mold 2, the air outlet 28 on the outer wall of one side of the two rotating rods 22 can be controlled to blow hot air into the inside of the static mold 2 to clean and remove the debris attached to the inner wall of the static mold 2, so that the static mold 2 can be quickly put into the subsequent refrigerator drawer injection molding work.

[0054] Furthermore, the electric heating block arranged inside the plurality of rotating rods 22 can control the two first double-headed screws 29 to drive the distance between the two corresponding rotating rods 22 to be adjusted before the mold is used, and then control the two first movable strips 21 to move toward each other, driving the two groups of rotating rods 22 to contact the movable mold 3 and the static mold 2 respectively, so that the heat generated by the electric heating block can be used to preheat the movable mold 3 and the static mold 2, so as to facilitate the subsequent cooperation between the movable mold 3 and the static mold 2 to perform injection molding of the refrigerator drawer.

[0055] Since cleaning pads are provided on the sides where the two splints 13 are close to each other, when there is water vapor on the inner walls of the transparent observation windows provided on the front and rear sides of the shell 1, which affects the staff's observation of the injection molding status of the refrigerator drawer, the two first rectangular rods 12 can be controlled to drive the two splints 13 to rotate to the side away from each other. At this time, the two splints 13 are respectively close to the transparent observation windows on the front and rear sides of the shell 1. With the help of the rotation of the second double-headed screw 15, the two splints 13 are driven to contact the inner walls of the two transparent observation windows respectively. With the help of the downward movement of the second rectangular rod 14 and the second sliding block 18, the splints 13 are conveniently driven to clean the transparent observation windows in the up and down directions; the fourth sliding block 10 moves back and forth inside the fourth slide groove 9, driving the splints 13 to clean the transparent observation windows in the left and right directions, so that the staff can monitor the injection molding status of the refrigerator drawer in real time.

[0056] At the same time, after the two clamps 13 rotate to a position close to the transparent observation windows on both sides, the two rotating plates 27 on one side of the multiple rotating rods 22 are controlled to rotate in a direction close to each other, driving the vacuum suction cups 35 set on the outer walls of the multiple rotating plates 27 to rotate to a state parallel to the rotating rods 22, and then the spacing between the two clamps 13 is adjusted, and then the outer wall of the side where the two clamps 13 are away from each other and the vacuum suction cups 35 on the side of the multiple rotating rods 22 are in the same straight line, as the second rectangular rod 14 and the second sliding block 18 move downward, the clamp 13 is driven to move downward, and the adsorption surface of the vacuum suction cup 35 can be cleaned, so that the subsequent vacuum suction cup 35 can better contact with the outer wall of the refrigerator drawer and facilitate the use of the vacuum suction cup 35.

[0057] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An injection mold for forming a refrigerator drawer, comprising a static mold (2), a dynamic mold (3) and a housing (1), characterized in that: The static mold (2) is mounted on an inner wall of one side of the shell (1); the inside of the shell (1) is connected to a movable seat (4) via a plurality of telescopic columns; a plurality of guide rods (8) are mounted on a side of the movable seat (4) away from the telescopic columns; the movable mold (3) is mounted on an outer wall of the plurality of guide rods (8); an automatic ejection device (5) is mounted between the movable mold (3) and the movable seat (4); a movable plate (7) is arranged inside the shell (1) and below the static mold (2) and the movable mold (3); an auxiliary detection mechanism for detecting the four sides of the injection molded component is arranged on the top of the movable plate (7); and a driving mechanism for driving the injection molded component to rotate to a horizontal state is arranged inside the shell (1) and above the static mold (2) and the movable mold (3); The auxiliary detection mechanism comprises a plurality of second slide grooves (23) opened on the top of the movable plate (7), a second slider (25) is installed inside each of the plurality of second slide grooves (23), the tops of two matched second sliders (25) are commonly connected to a first movable strip plate (21), a first double-headed screw rod (29) is rotatably installed inside each of the two first movable strip plates (21), and two first movable blocks (30) are symmetrically installed on the outer walls of the two first double-headed screw rods (29); The top ends of the two first moving blocks (30) are both rotatably mounted with a rotating seat (31) via a first rotating shaft, the interiors of the two rotating seats (31) are both rotatably mounted with a rotating block (32), and the outer walls of the two rotating blocks (32) on a side away from the rotating seat (31) are both connected to a rotating rod (22) via an electric telescopic rod (33); The outer walls of the two rotating rods (22) on the same side are each provided with a third slide groove (26), the interiors of the two third slide grooves (26) are each provided with a third slider (34), the ends of the two third sliders (34) away from the third slide groove (26) are each provided with a rotating plate (27) rotatably mounted thereon, and the outer walls of the two rotating plates (27) away from each other are each provided with a vacuum suction cup (35); An air outlet (28) is installed on the outer wall of the two rotating rods (22) on the side away from each other, and an electric heating block is preset inside the side of the two rotating rods (22) close to the air outlet (28); A placement plate (24) is rotatably mounted on the top of the movable plate (7), and the placement plate (24) is located between the two first movable strips (21); the flatness of the edges of the two sides of the refrigerator drawer is detected by means of a displacement sensor preset inside the rotating plate (27); and after detecting the two sides of the refrigerator drawer, the two first movable strips (21) are controlled to move in directions away from each other, and the placement plate (24) is controlled to drive the refrigerator drawer to rotate, so that the other two sides of the refrigerator drawer are close to the two sets of rotating rods (22), and the edge positions of the other two sides of the refrigerator drawer are continuously detected.

2. The injection mold for forming a refrigerator drawer according to claim 1, characterized in that: The inner walls on both sides of the shell (1) are provided with a plurality of first slide grooves (6), the interiors of the plurality of first slide grooves (6) are each provided with a first sliding block, and the outer walls on both sides of the movable plate (7) are respectively connected to one end of the plurality of first sliding blocks away from the first slide grooves (6).

3. The injection mold for forming a refrigerator drawer according to claim 1, characterized in that: The driving mechanism comprises a fourth slide groove (9) provided on the top surface of the housing (1), a fourth slider (10) being installed inside the fourth slide groove (9), a second movable strip (11) being installed at the bottom end of the fourth slider (10), a second double-headed screw (15) being rotatably installed inside the second movable strip (11), and two second movable blocks (16) being symmetrically installed on the outer wall of the second double-headed screw (15).

4. The injection mold for forming a refrigerator drawer according to claim 3, characterized in that: The bottom ends of the two second moving blocks (16) are rotatably mounted with a first rectangular rod (12) via a second rotating shaft, the outer walls of the two first rectangular rods (12) on the sides close to each other are each provided with a first guide groove (20), the interiors of the two first guide grooves (20) are each mounted with a first sliding block (19), and the ends of the two first sliding blocks (19) away from the first guide groove (20) are each mounted with a second rectangular rod (14).

5. The injection mold for forming a refrigerator drawer according to claim 4, characterized in that: A second guide groove (17) is formed on the outer wall of the adjacent side of the two second rectangular rods (14), a second sliding block (18) is installed inside the two second guide grooves (17), and a clamping plate (13) is rotatably installed on the ends of the two second sliding blocks (18) away from the second guide groove (17) via a third rotating shaft.

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