Injection molding machine mold for producing plastic frame

Abstract

The utility model discloses an injection molding machine mold for producing a plastic frame, which relates to the technical field of plastic frame production molds and comprises a mold component consisting of a fixed seat, a fixed guide rod, a fixed mold, a mold closing hydraulic cylinder, a movable seat and a movable mold, and an unloading component, the discharging assembly comprises a demolding unit, a material receiving unit and a transmission unit. The demolding unit is used for achieving rapid demolding of the formed plastic frame and the movable mold. The material receiving unit is used for carrying out material receiving operation on the demolded formed plastic frame; and the transmission unit is used for transmitting the horizontal moving force of the demolding unit to the material receiving unit and is used for realizing the rotating operation of the material receiving unit. According to the discharging device, automatic demolding and discharging operation of the formed plastic baskets can be achieved through the discharging assembly, the situation that the formed plastic baskets are damaged due to the fact that impact is too large due to the fact that the falling height is too high during discharging can be avoided through the rotary material receiving and discharging structure of the material receiving plate, and the product quality of the formed plastic baskets is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic frame production moulds, in particular to an injection moulding machine mould for producing plastic frames. Background Art

[0002] Turnover baskets are divided into turnover boxes (without mesh) and turnover baskets (with mesh). Because turnover baskets are basically made of plastic, they are also called plastic baskets. Turnover baskets are mostly used in industrial assembly line circulation and warehouse stacking;

[0003] The plastic basket is formed in one piece through the injection molding process. Injection molding utilizes the thermophysical properties of plastics. The material is added from the hopper into the barrel, and the material is heated by the heating ring outside the barrel to melt the material. A screw driven to rotate by an external power motor is installed in the barrel. Under the action of the screw, the material is transported forward and compacted along the screw groove. The material is gradually plasticized, melted and homogenized under the dual action of external heating and screw shearing. When the screw rotates, the material is pushed to the head of the screw under the action of the friction and shearing force of the screw groove. At the same time, the screw retreats under the reaction of the material, so that the head of the screw forms a storage space to complete the plasticization process. Then, under the action of the piston thrust of the injection cylinder, the screw injects the molten material in the storage chamber into the mold cavity through the nozzle at high speed and high pressure. After the molten material in the cavity is pressure-maintained, cooled, and solidified, the mold is opened under the action of the clamping mechanism to take out the finalized product.

[0004] In an injection molding machine for injecting plastic frames, when the mold needs to be opened to take out the shaped plastic frame, most solutions on the market currently rely on manual labor to take out the plastic frame by hand. This method is not only labor-intensive and inefficient, but also has great safety hazards. Some methods also use a robot to take out the plastic frame. When designing the robot, the cost of this method is usually high due to the high accuracy requirements on the robot. Based on this, an injection molding machine mold for producing plastic frames is provided. Utility Model Content

[0005] The utility model aims to provide an injection molding machine mold for producing plastic frames in order to realize the purpose of automatic stripping and unloading of plastic frames.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for an injection molding machine for producing a plastic frame, comprising a mold assembly consisting of a fixed seat, a fixed guide rod, a fixed mold, a mold clamping hydraulic cylinder, a movable seat, and a movable mold, wherein the fixed guide rod is fixed in the middle of two fixed seats, the fixed mold is installed at one end of one fixed seat, the mold clamping hydraulic cylinder is fixed to the other end of the other fixed seat and penetrates the other fixed seat and is fixedly connected to the movable seat, the movable seat is sleeved on the outside of the fixed guide rod, the movable mold is fixed to one end of the movable seat away from the mold clamping hydraulic cylinder and is aligned with the fixed mold, the movable seat moves to clamp the fixed mold for injection molding of the plastic frame, and a discharge assembly is distributed on the outside and bottom of the movable mold, and the discharge assembly is used to realize rapid demolding and unloading operations of the molded plastic frame;

[0007] The unloading assembly includes a demoulding unit, a material receiving unit, and a transmission unit;

[0008] The demoulding unit is used to realize rapid demoulding of the molded plastic frame and the movable mold;

[0009] The material receiving unit is used to receive the demoulded molded plastic frame;

[0010] The transmission unit is used to transmit the horizontal moving force of the demoulding unit to the material receiving unit, so as to realize the rotation operation of the material receiving unit.

[0011] As a further solution of the utility model: the demoulding unit includes a demoulding hydraulic cylinder, a rectangular push plate, and a guide rod;

[0012] The stripping hydraulic cylinder is fixedly installed at one end of the moving seat away from the moving mold, and the output end of the stripping hydraulic cylinder passes through the moving seat, the edge of the moving mold and is fixedly connected to the rectangular push plate;

[0013] The guide rod is fixed at the four end corners of the edge of the movable mold, the rectangular push plate is sleeved on the outside of the movable mold punch and is slidably connected to the guide rod, the guide rod is used to provide guidance for the movement of the rectangular push plate, and the stripping hydraulic cylinder pushes the rectangular push plate to move the molded plastic basket sleeved on the outside of the movable mold punch to push the molded plastic basket out of the mold.

[0014] As a further solution of the utility model: the material receiving unit includes an L-shaped connecting arm, a rotating shaft, a material receiving plate, and a supporting plate;

[0015] The L-shaped connecting arm is fixed to the bottom of the rectangular push plate and extends to the bottom of the movable mold, the rotating shaft is rotatably connected to the inner side of the L-shaped connecting arm and passes through both sides of the L-shaped connecting arm, the receiving plate is fixed to the outer side of the rotating shaft, and the supporting plate is fixed to the upper end of the receiving plate and close to the L-shaped connecting arm;

[0016] The receiving plate rotates around the rotating shaft to an inclined upward state, and is used to receive the demoulded molded plastic basket, and the supporting plate is used to support the bottom of the molded plastic basket;

[0017] The receiving plate rotates around the rotating shaft to a tilted downward state, so as to make the received formed plastic basket tilt and slide down, thereby realizing the unloading operation.

[0018] As a further solution of the utility model: the transmission unit includes a driven gear and an L-shaped gear arm;

[0019] The driven gears are symmetrically fixed on both sides of the rotating shaft and distributed on both sides of the receiving plate;

[0020] The L-shaped tooth arm is fixed to the bottom of the edge of the movable mold, and the horizontal tooth groove of the L-shaped tooth arm is meshed with the top of the rotating shaft;

[0021] When the L-shaped connecting arm moves horizontally with the rectangular pushing plate, the driven gear is limited by the L-shaped tooth arm to cause the driven gear to rotate, so as to provide power for the rotation of the receiving plate.

[0022] As a further solution of the utility model: when the material receiving plate is rotated to be tilted downward, the distance between the lowest end of the material receiving plate and the bottom of the fixing seat is greater than the edge height of the plastic basket.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] By setting up a unloading component, the molded plastic basket can be automatically demoulded and unloaded. The rotating receiving and unloading structure of the receiving plate can avoid the molded plastic basket from falling too high during unloading, resulting in excessive impact and damage, thereby effectively ensuring the product quality of the molded plastic basket. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a structural distribution diagram of the unloading assembly of the utility model;

[0027] Figure 3 It is a schematic diagram of the disassembly of some parts of the unloading assembly of the utility model.

[0028] In the figure: 1. mold assembly; 101. fixed seat; 102. fixed guide rod; 103. fixed mold; 104. mold clamping hydraulic cylinder; 105. moving seat; 106. movable mold; 2. unloading assembly; 201. unloading hydraulic cylinder; 202. rectangular push plate; 203. guide rod; 204. L-shaped connecting arm; 205. rotating shaft; 206. receiving plate; 207. support plate; 208. driven gear; 209. L-shaped gear arm. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 3 In the embodiment of the utility model, a mold of an injection molding machine for producing a plastic frame includes a mold assembly 1 composed of a fixed seat 101, a fixed guide rod 102, a fixed mold 103, a clamping hydraulic cylinder 104, a movable seat 105, and a movable mold 106. The fixed guide rod 102 is fixed in the middle of two fixed seats 101, and the fixed mold 103 is installed at one end of one fixed seat 101. The clamping hydraulic cylinder 104 is fixed to the other end of the other fixed seat 101 and penetrates the other fixed seat 101 and is fixedly connected with the movable seat 105. The movable seat 105 is sleeved on the outside of the fixed guide rod 102. The movable mold 106 is fixed to one end of the movable seat 105 away from the clamping hydraulic cylinder 104 and is aligned with the fixed mold 103. The movable seat 105 moves to clamp the fixed mold 103 for injection molding of the plastic frame. The outer side and bottom of the movable mold 106 are provided with a discharge assembly 2, and the discharge assembly 2 is used to realize the rapid demoulding and unloading operations of the molded plastic frame.

[0031] The unloading assembly 2 includes a demoulding unit, a material receiving unit, and a transmission unit. The demoulding unit is used to realize the rapid demoulding of the molded plastic frame and the movable mold 106. The material receiving unit is used to carry out material receiving operation on the demoulded molded plastic frame. The transmission unit is used to transmit the horizontal moving force of the demoulding unit to the material receiving unit, so as to realize the rotation operation of the material receiving unit.

[0032] The demoulding unit includes a demoulding hydraulic cylinder 201, a rectangular push plate 202, and a guide rod 203;

[0033] The stripping hydraulic cylinder 201 is fixedly installed at one end of the moving seat 105 away from the movable mold 106, and the output end of the stripping hydraulic cylinder 201 passes through the moving seat 105, the edge of the movable mold 106 and is fixedly connected to the rectangular push plate 202;

[0034] The guide rod 203 is fixed at the four end corners of the edge of the movable mold 106. The rectangular push plate 202 is sleeved on the outer side of the male part of the movable mold 106 and is slidably connected to the guide rod 203. The guide rod 203 is used to provide guidance for the movement of the rectangular push plate 202. The stripping hydraulic cylinder 201 pushes the rectangular push plate 202 to move and push the molded plastic basket sleeved on the outer side of the male part of the movable mold 106 to be demolded;

[0035] The material receiving unit includes an L-shaped connecting arm 204, a rotating shaft 205, a material receiving plate 206, and a supporting plate 207;

[0036] The L-shaped connecting arm 204 is fixed to the bottom of the rectangular push plate 202 and extends to the bottom of the movable mold 106. The rotating shaft 205 is rotatably connected to the inner side of the L-shaped connecting arm 204 and passes through both sides of the L-shaped connecting arm 204. The receiving plate 206 is fixed to the outer side of the rotating shaft 205. The supporting plate 207 is fixed to the upper end of the receiving plate 206 and is close to the L-shaped connecting arm 204.

[0037] The receiving plate 206 rotates around the rotating shaft 205 to an inclined upward state, and is used to receive the molded plastic basket after demoulding, and the supporting plate 207 is used to support the bottom of the molded plastic basket;

[0038] The receiving plate 206 rotates around the rotating shaft 205 to a tilted downward state, so as to make the received molded plastic basket tilt and slide down to realize the unloading operation;

[0039] The transmission unit includes a driven gear 208 and an L-shaped gear arm 209;

[0040] The driven gears 208 are symmetrically fixed on both sides of the rotating shaft 205 and distributed on both sides of the receiving plate 206;

[0041] The L-shaped tooth arm 209 is fixed to the bottom of the edge of the movable mold 106, and the horizontal tooth groove of the L-shaped tooth arm 209 is meshed with the top of the rotating shaft 205;

[0042] When the L-shaped connecting arm 204 moves horizontally with the rectangular pushing plate 202 , the driven gear 208 is limited by the L-shaped tooth arm 209 so that the driven gear 208 rotates, which is used to provide power for the rotation of the receiving plate 206 .

[0043] In this embodiment: it is necessary to add that: when the mold assembly 1 is in use, the fixed seat 101 is fixed inside the injection molding machine chassis, and the injection molding machine chassis is provided with a horizontal push assembly at the position where the receiving plate 206 unloads the material, and the horizontal push assembly is composed of a hydraulic cylinder and a push plate, and a discharge port is provided on the outside of the injection molding machine chassis at a position aligned with the horizontal push assembly;

[0044] When the plastic basket is being formed, the mold-closing hydraulic cylinder 104 pushes the movable seat 105 and the movable mold 106 to approach the fixed mold 103, and finally the movable mold 106 is molded with the fixed mold 103 (it should be noted that: at this time, the material receiving plate 206 is tilted downward and will not interfere with the mold-closing of the movable mold 106 and the fixed mold 103), and then the molten material is injected into the inner cavity formed by the movable mold 106 and the fixed mold 103 through the injection hole at the rear end of the fixed mold 103, and then the material is cooled to complete the plastic basket molding;

[0045] After that, the mold closing hydraulic cylinder 104 is reset to drive the movable seat 105 and the movable mold 106 away from the fixed mold 103, so that the movable mold 106 is separated from the fixed mold 103. At this time, the formed plastic basket is sleeved on the outside of the fixed mold 103 and is driven to move together;

[0046] When the fixed mold 103 is reset to the initial position, the stripping hydraulic cylinder 201 is started, and the stripping hydraulic cylinder 201 pushes the rectangular push plate 202 to move, and the rectangular push plate 202 pushes the molded plastic basket to move, thereby realizing the demoulding operation of the molded plastic basket and the fixed mold 103;

[0047] At the same time, the L-shaped connecting arm 204, the rotating shaft 205, the receiving plate 206, and the driven gear 207 move horizontally synchronously with the rectangular pushing plate 202. Since the L-shaped tooth arm 209 is meshed with the driven gear 207, the driven gear 207 rotates while moving horizontally, and the driven gear 207 drives the rotating shaft 205 and the receiving plate 206 to rotate. The receiving plate 206 rotates from a downward tilted state to an upward tilted state, so that the molded plastic basket separated from the fixed mold 103 will fall onto the receiving plate 206, and the support plate 207 forms a support for the bottom of the molded plastic basket;

[0048] After the demoulding operation of the molded plastic basket and the fixed mold 103 is completed, the stripping hydraulic cylinder 201 runs in the reverse direction to drive the rectangular push plate 202 to reset. At this time, the receiving plate 206 rotates from an upward tilt state to a downward tilt state, so that the molded plastic basket on the receiving plate 206 slides down and falls to the bottom of the injection molding machine chassis, and then the molded plastic basket is pushed out from the discharge port by the horizontal push assembly;

[0049] The cooperation of the above multiple parts can realize the automatic demoulding and unloading operations of the molded plastic basket, and the rotating receiving and unloading structure of the receiving plate 207 can avoid the molded plastic basket from falling too high during unloading, resulting in excessive impact and damage, thereby effectively ensuring the product quality of the molded plastic basket.

[0050] Please refer to Figures 1-2 When the receiving plate 206 rotates to tilt downward, the distance between the lowest end of the receiving plate 206 and the bottom of the fixing seat 101 is greater than the edge height of the plastic basket.

[0051] In this embodiment, this structure allows the plastic basket to slide down the receiving plate 206 and fall to the bottom of the injection molding machine chassis without interfering with the movement of the receiving plate 206 .

[0052] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold for an injection molding machine for producing a plastic frame, comprising a mold assembly (1) consisting of a fixed seat (101), a fixed guide rod (102), a fixed mold (103), a mold clamping hydraulic cylinder (104), a movable seat (105), and a movable mold (106), wherein the fixed guide rod (102) is fixed between two fixed seats (101), the fixed mold (103) is installed at one end of one fixed seat (101), the mold clamping hydraulic cylinder (104) is fixed to the other end of the other fixed seat (101) and penetrates the other fixed seat (101) and is fixedly connected to the movable seat (105), the movable seat (105) is sleeved on the outside of the fixed guide rod (102), the movable mold (106) is fixed to one end of the movable seat (105) away from the mold clamping hydraulic cylinder (104) and is aligned with the fixed mold (103), the movable seat (105) moves to clamp with the fixed mold (103) for injection molding of the plastic frame, characterized in that A discharge assembly (2) is distributed on the outer side and the bottom of the movable mold (106), and the discharge assembly (2) is used to realize rapid demoulding and unloading operations of the molded plastic frame; The unloading assembly (2) comprises a demoulding unit, a material receiving unit, and a transmission unit; The demoulding unit is used to realize rapid demoulding of the molded plastic frame and the movable mold (106); The material receiving unit is used to receive the demoulded molded plastic frame; The transmission unit is used to transmit the horizontal moving force of the demoulding unit to the material receiving unit, so as to realize the rotation operation of the material receiving unit.

2. The injection molding machine mold for producing a plastic frame according to claim 1, characterized in that: The demoulding unit comprises a demoulding hydraulic cylinder (201), a rectangular push plate (202), and a guide rod (203); The stripping hydraulic cylinder (201) is fixedly mounted on one end of the movable seat (105) away from the movable mold (106), and the output end of the stripping hydraulic cylinder (201) passes through the movable seat (105), the edge of the movable mold (106) and is fixedly connected to the rectangular stripping plate (202); The guide rod (203) is fixed at four end corners of the edge of the movable mold (106); the rectangular push plate (202) is sleeved on the outer side of the male mold portion of the movable mold (106) and is slidably connected to the guide rod (203); the guide rod (203) is used to provide guidance for the movement of the rectangular push plate (202); the stripping hydraulic cylinder (201) pushes the rectangular push plate (202) to move and pushes the molded plastic basket sleeved on the outer side of the male mold portion of the movable mold (106) to be stripped.

3. The injection molding machine mold for producing a plastic frame according to claim 2, characterized in that: The material receiving unit comprises an L-shaped connecting arm (204), a rotating shaft (205), a material receiving plate (206), and a supporting plate (207); The L-shaped connecting arm (204) is fixed to the bottom of the rectangular push plate (202) and extends to the bottom of the movable mold (106); the rotating shaft (205) is rotatably connected to the inner side of the L-shaped connecting arm (204) and passes through both sides of the L-shaped connecting arm (204); the receiving plate (206) is fixed to the outer side of the rotating shaft (205); and the supporting plate (207) is fixed to the upper end of the receiving plate (206) and is close to the L-shaped connecting arm (204); The receiving plate (206) rotates around the rotating shaft (205) to an inclined upward state, and is used to receive the molded plastic basket after demoulding, and the supporting plate (207) is used to support the bottom of the molded plastic basket; The receiving plate (206) rotates around the rotating shaft (205) to a tilted downward state, so as to make the received molded plastic basket tilt and slide downward, thereby realizing the unloading operation.

4. The injection molding machine mold for producing a plastic frame according to claim 3, characterized in that: The transmission unit comprises a driven gear (208) and an L-shaped gear arm (209); The driven gears (208) are symmetrically fixed on both sides of the rotating shaft (205) and are distributed on both sides of the receiving plate (206); The L-shaped tooth arm (209) is fixed to the bottom of the edge of the movable mold (106), and the horizontal tooth groove of the L-shaped tooth arm (209) is meshed with the top of the rotating shaft (205); When the L-shaped connecting arm (204) moves horizontally with the rectangular material pushing plate (202), the driven gear (208) is limited by the L-shaped tooth arm (209) so that the driven gear (208) rotates, thereby providing power for the rotation of the receiving plate (206).

5. The injection molding machine mold for producing a plastic frame according to claim 3, characterized in that: When the receiving plate (206) is rotated to tilt downward, the distance between the lowest end of the receiving plate (206) and the bottom of the fixing seat (101) is greater than the edge height of the plastic basket.

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