Automatic injection molding device for trundle body

Abstract

The utility model relates to the technical field of injection molding, and discloses an automatic injection molding device for a trundle body, which comprises a frame body, a movable module, a heating and stirring tank, a heat insulation layer and a hydraulic rod, the heating and stirring tank is arranged at the top end of the frame body, and the heat insulation layer is arranged between the heating and stirring tank and the frame body. The four corners of the frame body, the four corners of the heating and stirring tank and the four corners of the heat insulation layer are connected in a matched mode through adaptive screws, a hydraulic rod is arranged at the bottom end of the frame body, a movable module is arranged in the frame body, and a hydraulic push rod at the top end of the hydraulic rod is correspondingly welded to the center of the bottom end of the movable module. The heating and stirring tank is arranged at the top end of the frame body, so that the injection molding material curing rate is reduced, and the injection molding quality and speed of the trundle body are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, concretely is a castor body automatic injection molding device. BACKGROUND

[0002] Injection molding is a very key process in the field of modern plastics processing, its function is that it can convert various thermoplastic or thermosetting plastic raw materials into uniform molten state with the help of plasticizing device of injection molding machine, then under the action of high pressure, the molten plastic is precisely injected into a specific mold cavity, the mold gives the plastic melt precise shape, after the cooling and solidification stage, the plastic is finally shaped into various complex and high-precision plastic products.

[0003] In the field of modern industrial production and logistics transportation, castors are widely used as key components, and the traditional castor body production mode is mostly artificial injection molding, which is not only low in efficiency and high in labor cost, but also has uneven product quality, with the continuous growth of market demand for castors and the increasing requirement for product precision and consistency, manual operation has been difficult to meet the large-scale and high-quality production demand, therefore, we provide a castor body automatic injection molding device. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a castor body automatic injection molding device, which solves the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a castor body automatic injection molding device, comprising a frame body, a movable mold group, a heating and stirring tank, a heat insulation layer and a hydraulic rod, the top end of the frame body is provided with a heating and stirring tank, the heating and stirring tank and the frame body are provided with a heat insulation layer, and the frame body, the heating and stirring tank and the heat insulation layer are connected through adaptive screws at the four corners, the bottom end of the frame body is provided with a hydraulic rod, the inside of the frame body is provided with a movable mold group, and the hydraulic rod top end hydraulic push rod is correspondingly welded to the center of the bottom end of the movable mold group.

[0006] Preferably, the bottom end of the frame body is welded with a supporting plate one, four connection holes are opened in the end face of the supporting plate one in an axisymmetric distribution, the connection holes are connected with the bottom end of the hydraulic rod through adaptive bolts, the top end of the supporting plate one in the frame body is welded with a supporting plate two, the hydraulic rod is arranged between the supporting plate two and the supporting plate one, and a matching hole is opened in the center of the end face of the supporting plate two, which is connected with the output shaft of the hydraulic rod in sliding mode.

[0007] Preferably, four corners of the top of the inner support plate of the frame body are provided with guide rods, and the top end of the guide rod is fixedly connected with a fixed mold group, the top end of the fixed mold group is provided with an electromagnetic valve, the electromagnetic valve is in communication with the inside of the fixed mold group, two axially symmetrical matching holes are formed in the side wall of the fixed mold group, and the overall structure of the fixed mold group is consistent with that of the movable mold group.

[0008] Preferably, four corners of the movable mold group are provided with guide holes, the guide holes are in sliding fit connection with the guide rods, and a rectangular cavity is formed in the inside of the movable mold group, the inside of the rectangular cavity is provided with a cooling device and a heat-conducting filler, and the heat-conducting filler corresponds to the cooling device.

[0009] Preferably, the cooling device has a curved overall structure, the inlet and outlet of the cooling device at the two shaft ends correspond to the side wall of the movable mold group, and the cooling device at the two shaft ends is in fit connection with the external water circulating device.

[0010] Preferably, the heating and stirring tank is composed of three parts, namely a tank body, a top cover and a stirring device, the top end of the tank body is connected with the top cover through adaptive bolts, the top end of the top cover is provided with a feeding port, the top end of the support plate is fixedly connected with the stirring device through adaptive screws, the output shaft end of the stirring device is provided with stirring claws which correspond to pass through the top cover and enter the inside of the tank body, the bottom end of the tank body is provided with a matching plate which corresponds to be attached to the heat insulation layer, a group of heating rods are arranged in the tank body in a ring array, and a discharging port is formed in the bottom of the tank body and corresponds to be in communication with the electromagnetic valve.

[0011] Compared with the prior art, the utility model provides a kind of caster body automatic injection molding device, with the following beneficial effects:

[0012] 1、The caster body automatic injection molding device greatly improves production efficiency, and the automatic operation mode reduces manual operation links, and the whole process of heating and stirring, injection and cooling demolding is automatically carried out, the plastic raw material of heating and stirring tank is always in the best molten state, the opening and closing of movable mold group and fixed mold group are accurately controlled by hydraulic rod, and cooling device efficiently cools and accelerates caster forming, compared with traditional manual injection, more casters can be produced per unit time, to meet the large demand of market for caster.

[0013] 2、The caster body automatic injection molding device significantly improves product quality, and the cooperation of device components ensures the injection precision and stability, the guide rod ensures the precise adhesion of movable mold group and fixed mold group, prevents raw material leakage and forming deviation, the heating and stirring tank prevents the solidification of molten raw material, so that the raw material injected into the mold is uniform and stable, the cooling device and heat-conducting filler cooperate to make the cooling of caster more uniform, reduce internal stress and defects, and the produced caster has high dimensional accuracy and stable quality, meeting the requirements of high-quality products. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1The utility model discloses a trolley body automatic injection molding device structure schematic drawing.

[0015] Figure 2 The utility model discloses a trolley body automatic injection molding device sectional view schematic drawing.

[0016] Figure 3 The utility model discloses a frame schematic drawing.

[0017] Figure 4 The utility model discloses a movable die group schematic drawing.

[0018] Figure 5 The utility model discloses a movable die group sectional view schematic drawing.

[0019] Figure 6 The utility model discloses a heating stirring tank sectional view schematic drawing.

[0020] In the drawing: 1, frame; 2, movable die group; 3, heating stirring tank; 4, heat insulating layer; 5, hydraulic rod; 6, support plate one; 7, support plate two; 8, guide rod; 9, fixed die group; 10, electromagnetic valve; 11, fit hole; 12, guide hole; 13, cooling device; 14, heat conduction filler; 15, tank body; 16, top cover; 17, stirring device; 18, fit plate; 19, heating rod; 20, discharge port; 21, feed inlet; 22, stirring claw. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1-6 A trolley body automatic injection molding device, including frame 1, movable die group 2, heating stirring tank 3, heat insulating layer 4 and hydraulic rod 5, the top end of frame 1 is provided with heating stirring tank 3, and heating stirring tank 3 is equipped with heat insulating layer 4 between frame 1, and frame 1, heating stirring tank 3 and heat insulating layer 4 four corners are connected through the adaptation screw cooperation, and the bottom end of frame 1 is equipped with hydraulic rod 5, and the inside of frame 1 is equipped with movable die group 2, and the hydraulic push rod of hydraulic rod 5 top end corresponds with the bottom end center welding of movable die group 2, and heat insulating layer 4 effectively guarantees that the heat and temperature of heating stirring tank 3 can not influence trolley injection molding process.

[0023] Further, the bottom end of the frame body 1 is welded with a support plate 6, and four connection holes are arranged on the end face of the support plate 6 in an axisymmetric distribution, which are connected with the bottom end of the hydraulic rod 5 through adaptive bolts, and the top end of the support plate 6 inside the frame body 1 is welded with a support plate 7, and the hydraulic rod 5 is arranged between the support plate 6 and the support plate 7, and a matching hole is arranged on the center of the end face of the support plate 7, which is connected with the output shaft of the hydraulic rod 5 in a sliding mode, and the support plate 6 and the support plate 7 both have a supporting effect.

[0024] Further, the top end of the support plate 7 inside the frame body 1 is provided with a guide rod 8 at four corners, and a fixed mold group 9 is fixedly connected to the top end of the guide rod 8, and an electromagnetic valve 10 is arranged on the top end of the fixed mold group 9, which is in communication with the inside of the fixed mold group 9, and two matching holes 11 are arranged on the side wall of the fixed mold group 9 in an axisymmetric distribution, and the overall structure of the fixed mold group 9 is consistent with that of the movable mold group 2, the guide rod 8 of the frame body 1 effectively ensures the precision of the fixed mold group 9 and the movable mold group 2, improves the injection molding precision, and the fixed mold group 9 is close to the heating and stirring tank 3, effectively reduces the distance of the material conveying pipeline, reduces the possibility of solidification of the molten plastic raw material, and prevents internal blockage.

[0025] Further, the movable mold group 2 is provided with a guide hole 12 at four corners, which is connected with the guide rod 8 in a sliding mode, and a rectangular cavity is arranged inside the movable mold group 2, which is provided with a cooling device 13 and a heat-conducting filler 14, and the heat-conducting filler 14 wraps the cooling device 13, the guide hole 12 of the movable mold group 2 effectively ensures the injection molding precision, and the heat-conducting filler 14 can efficiently transfer the heat after sealing to the inside of the cooling device 13, improve the cooling quality, and thus accelerate the forming rate of the caster.

[0026] Further, the cooling device 13 has a curved back structure, and the inlet and outlet ports of the two shaft ends of the cooling device 13 are arranged on the side wall of the movable mold group 2, and the two shaft ends of the cooling device 13 are connected with the external water circulation device, and the curved back structure of the cooling device 13 effectively ensures that the flowing cold water inside can effectively absorb heat and efficiently cool the movable mold group 2 or the fixed mold group 9.

[0027] Further, the heating stirring tank 3 is composed of three parts, namely the tank body 15, the top cover 16 and the stirring device 17. The tank body 15 is connected with the top cover 16 at the top end through the matching bolts. The top cover 16 is provided with the feeding port 21 at the top end. The stirring device 17 is fixedly connected with the support plate one 6 at the top end through the matching screws. The output shaft end stirring claw 22 of the stirring device 17 corresponds to pass through the top cover 16 and enters the inside of the tank body 15. The tank body 15 is provided with the matching plate 18 at the bottom end. The matching plate 18 corresponds to be attached to the heat insulation layer 4. A group of heating rods 19 in annular array is arranged in the tank body 15. The tank body 15 is provided with the discharging port 20 at the bottom. The discharging port 20 corresponds to be communicated with the electromagnetic valve 10. The stirring device 17 and the heating rod 19 of the heating stirring tank 3 effectively prevent the solidification of the plastic raw materials, thereby improving the quality of the caster injection molding.

[0028] Structure description:

[0029] The frame body 1 is the main support structure of the device and is in the form of a frame. The top of the frame body 1 bears the heating stirring tank 3. The inside of the frame body 1 accommodates components such as the movable mold group 2. The bottom of the frame body 1 is connected with the hydraulic rod 5, thereby ensuring the stability of the whole device.

[0030] The movable mold group 2 is located inside the frame body 1 and is provided with guide holes 12 at the four corners. The movable mold group 2 can slide along the guide rod 8. The rectangular cavity inside the movable mold group 2 is provided with the cooling device 13 and the heat-conducting filler 14 for cooling the caster during molding.

[0031] The heating stirring tank 3 is composed of the tank body 15, the top cover 16 and the stirring device 17. The top cover 16 is provided with the feeding port 21. The tank body 15 is provided with the heating rod 19. The bottom discharging port 20 is communicated with the fixed mold group 9, thereby keeping the molten raw materials in a state.

[0032] The heat insulation layer 4 is located between the frame body 1 and the heating stirring tank 3 and is connected through the four corner matching screws. The heat insulation layer 4 effectively blocks the heat of the heating stirring tank 3, thereby avoiding affecting the caster injection molding process.

[0033] The hydraulic rod 5 is installed at the bottom end of the frame body 1. The top hydraulic push rod is welded with the bottom center of the movable mold group 2. The hydraulic rod 5 pushes the movable mold group 2 up and down through stretching and contracting, thereby realizing the opening and closing of the mold.

[0034] The support plate one 6 is welded at the bottom end of the frame body 1. The end face of the support plate one 6 is provided with four axis-symmetrical connecting holes for being connected with the bottom of the hydraulic rod 5 through the matching bolts, thereby playing a supporting role.

[0035] The support plate two 7 is welded at the top of the support plate one 6. The hydraulic rod 5 is arranged between the support plate one 6 and the support plate two 7. The center matching hole of the end face of the support plate two 7 is slidingly connected with the output shaft of the hydraulic rod 5, thereby playing an auxiliary supporting role.

[0036] Guide rod 8: Guide rod 8 is installed in the top of the support plate two 7 inside the frame body 1 four corners, top and fixed connection with the mold group 9, for the mold group 2 guide, ensure the precision of the mold;

[0037] Mold group 9: the overall structure of mold group 9 is consistent with mold group 2, the top is provided with electromagnetic valve 10 and heating stirring tank 3 discharge port communication, side wall has matching hole 11, for injection molding;

[0038] Electromagnetic valve 10: electromagnetic valve 10 is installed in the top of the mold group 9, controls the on-off of the molten raw material flowing into the mold group 9 in the heating stirring tank 3, guarantees the accurate process of injection molding;

[0039] Matching hole 11: matching hole 11 is located in the side wall of mold group 9, which is axisymmetric distribution;

[0040] Guide hole 12: guide hole 12 is opened in the four corners of the mold group 2, which is sliding fit with the guide rod 8, to ensure the accurate movement of the mold group 2 and improve the precision of injection molding;

[0041] Cooling device 13: cooling device 13 is in the shape of a curved back, located in the rectangular cavity inside the mold group 2, and the two shaft ends enter and exit the liquid port in the side wall of the mold group 2, which is connected with the external water circulation device;

[0042] Thermal filler 14: thermal filler 14 wraps the cooling device 13, which can efficiently transfer the heat after the mold is sealed to the cooling device 13, and accelerate the cooling forming rate of the caster wheel;

[0043] Tank body 15: tank body 15 is the main body of the heating stirring tank 3, the top is connected with the top cover 16 through the adaptive bolt, the bottom is provided with the matching plate 18 which is attached to the heat insulation layer 4, and the inside has the heating rod 19;

[0044] Top cover 16: top cover 16 covers the top of the tank body 15, the top is provided with the feeding port 21, which facilitates the plastic raw materials to enter the tank body 15 for heating and stirring;

[0045] Stirring device 17: stirring device 17 is fixed on the top of support plate one 6, the output shaft end stirring claw 22 passes through the top cover 16 and enters the tank body 15, and the molten raw materials are stirred to prevent solidification;

[0046] Matching plate 18: matching plate 18 is provided at the bottom end of the tank body 15 and attached to the heat insulation layer 4, which assists in supporting the tank body 15 and ensures the stability of the device structure;

[0047] Heating rod 19: heating rod 19 is arranged in the form of a ring array in the tank body 15, which heats the plastic molten raw materials to keep them in a molten state;

[0048] Discharge port 20: discharge port 20 is located at the bottom of the tank body 15 and is connected with the electromagnetic valve 10, which transports the molten plastic raw materials to the mold group 9 for caster wheel injection molding;

[0049] Feed inlet 21: the feed inlet 21 is opened at the top end of the top cover 16, and the plastic raw material enters the heating stirring tank 3 from the feed inlet 21, and the injection molding raw material preparation process is started;

[0050] Stirring claw 22: the stirring claw 22 is connected to the output shaft end of the stirring device 17 and is deeply inserted into the inside of the tank body 15 to stir the plastic molten raw material to make it uniformly heated and molten.

[0051] Working principle: according to the drawing, the caster body automatic injection molding device is correctly installed, after the device is started, the plastic raw material enters the tank body 15 from the feed inlet 21 of the top cover 16 of the heating stirring tank 3, the stirring device 17 is driven by the motor on the top of the support plate 6 to drive the stirring claw 22 to stir the raw material, at the same time, the heating rods 19 arranged in a ring array in the tank body 15 start to work to keep the molten raw material in the best state at all times to prevent the molten raw material from solidifying, thereby guaranteeing the quality of the caster injection molding, the electromagnetic valve 10 on the top of the fixed mold group 9 is opened, the molten raw material flows into the inside of the fixed mold group 9 from the discharge port 20 at the bottom of the tank body 15 through the pipeline, at this time, the hydraulic rod 5 at the bottom of the frame body 1 starts to work, the hydraulic push rod pushes the movable mold group 2 upwards, the guide holes 12 at the four corners of the movable mold group 2 slide along the guide rods 8 to ensure that the movable mold group 2 is accurately fitted with the fixed mold group 9, thereby improving the injection molding production precision, since the fixed mold group 9 is close to the heating stirring tank 3, the length of the conveying pipeline is shortened, and the possibility of solidification of the molten plastic raw material in the conveying process and blockage of the inside of the pipeline is reduced, after the movable mold group 2 is combined with the fixed mold group 9, the molten raw material in the fixed mold group 9 fills the mold cavity, at the same time, the cooling device 13 in the rectangular cavity of the movable mold group 2 starts to work, the cooling device 13 has a curved back structure, the two shaft ends of the cooling device 13 are connected with the external water circulation device, the cold water flowing in the inside can efficiently absorb heat, the heat of the sealed mold is quickly transmitted to the cooling device 13 by the heat-conducting filler 14 in the movable mold group 2, the cooling speed is accelerated, and the caster body is quickly formed, after the caster is cooled and solidified, the hydraulic rod 5 drives the movable mold group 2 to descend to complete the demolding process, thereby realizing the automatic injection molding of the caster body.

[0052] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A caster body automatic injection molding device, comprising a frame (1), a movable mold group (2), a heating stirring tank (3), a heat insulation layer (4) and a hydraulic rod (5), characterized in that: The top end of the frame body (1) is provided with a heating stirring tank (3), a heat insulation layer (4) is arranged between the heating stirring tank (3) and the frame body (1), and the frame body (1), the heating stirring tank (3) and the heat insulation layer (4) are connected through adaptive screws at four corners, the bottom end of the frame body (1) is provided with a hydraulic rod (5), the inside of the frame body (1) is provided with a movable die set (2), and the top end of the hydraulic rod (5) is correspondingly welded to the center of the bottom end of the movable die set (2).

2. The caster body automatic injection molding device according to claim 1, wherein: The bottom end of the frame body (1) is welded with a supporting plate one (6), and four connecting holes in axial symmetry are arranged on the end face of the supporting plate one (6), the connecting holes are correspondingly connected with the bottom end of the hydraulic rod (5) through adaptive bolts, and the top end of the supporting plate one (6) in the frame body (1) is welded with a supporting plate two (7), the hydraulic rod (5) is correspondingly arranged between the supporting plate two (7) and the supporting plate one (6), and a matching hole is arranged in the center of the end face of the supporting plate two (7), the matching hole is correspondingly and slidingly connected with the output shaft of the hydraulic rod (5).

3. The caster body automatic injection molding device according to claim 2, wherein: The inside of the frame body (1) is provided with a guide rod (8) at the top end of the supporting plate two (7), the top end of the guide rod (8) is fixedly connected with a fixed die set (9), the top end of the fixed die set (9) is provided with an electromagnetic valve (10), the electromagnetic valve (10) is in communication with the inside of the fixed die set (9), two matching holes (11) in axial symmetry are arranged on the side wall of the fixed die set (9), and the overall structure of the fixed die set (9) is consistent with that of the movable die set (2).

4. The caster body automatic injection molding device according to claim 3, wherein: The four corners of the movable die set (2) are provided with guide holes (12), the guide holes (12) are correspondingly and slidingly connected with the guide rods (8), and the inside of the movable die set (2) is provided with a rectangular cavity, the rectangular cavity is provided with a cooling device (13) and a heat-conducting filler (14).

5. The caster body automatic injection molding device according to claim 4, wherein: The overall structure of the cooling device (13) is curved and back-shaped, the inlet and outlet ports of the two shaft ends of the cooling device (13) are correspondingly arranged on the side wall of the movable die set (2), and the two shaft ends of the cooling device (13) are correspondingly connected with an external water circulating device.

6. The caster body automatic injection molding device according to claim 1, wherein: The heating stirring tank (3) is composed of three parts, namely a tank body (15), a top cover (16) and a stirring device (17), the top end of the tank body (15) is connected with the top cover (16) through adaptive bolts, the top end of the top cover (16) is provided with an inlet (21), and the top end of the supporting plate one (6) is fixedly connected with the stirring device (17) through adaptive screws, the output shaft end of the stirring device (17) is correspondingly connected with the stirring claw (22) which enters the inside of the tank body (15) through the top cover (16), and the bottom end of the tank body (15) is provided with a matching plate (18), the matching plate (18) is correspondingly attached to the heat insulation layer (4), the tank body (15) is provided with a group of heating rods (19) arranged in an annular array, and the bottom end of the tank body (15) is provided with a discharge port (20), the discharge port (20) is correspondingly connected with the electromagnetic valve (10).

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