CN221937363U - Plastic product-based manufacturing and forming device - Google Patents

Abstract

The utility model discloses a plastic product manufacturing and forming device, comprising a workbench provided with a support arm; a hydraulic push rod provided on the support arm; a plurality of lower molds located on the workbench, on which a transmission assembly is provided, the transmission assembly is used to keep the lower mold and the hydraulic push rod in relative motion; a condensation chamber slidably provided on the hydraulic push rod, on which a socket is provided to form a plug-in fit with the lower mold, the socket is used to connect the lower mold. The plastic product manufacturing and forming device allows the condensate in the condensation chamber to enter the lower mold through the design of the socket, and under the action of the condensate, the temperature of the condensation chamber and the lower mold is reduced, so that the plastic after shaping is cooled from both sides, avoiding uneven heating on both sides. After cooling, the hydraulic push rod drives the condensation chamber to move upward, and at the same time, the lower molds move away from each other, so as to achieve demolding from the plastic.

Description

A molding device based on plastic products

Technical Field

The utility model relates to the technical field of plastic manufacturing, in particular to a molding device based on plastic product manufacturing.

Background Art

The manufacture of plastic products usually involves heating and melting the raw materials and injecting them into a mold, combining an extrusion device and a cooling system to shape the plastic in the mold.

In conjunction with publication number CN116277770B, publication date 2023-07-28, a molding device for processing plastic products is disclosed.

In the prior art including the above-mentioned patent, when the lifting column moves downward relative to the sleeve, the conveying assembly in the heat-insulating piston cylinder can squeeze the coolant inside the heat-insulating piston cylinder, so that the coolant can enter the cavity inside the mold, which has a cooling effect on the mold, so that the mold can quickly cool the plastic product after hot pressing, which promotes the rapid shaping of the plastic product. At the same time, the mold can be smoothly separated from the plastic product for demolding when it moves upward. However, during the downward pressing process of the mold, the raw material is squeezed into the accommodation space formed by the horizontal side plates and the vertical side plates. At this time, the coolant enters the mold cavity, and the temperature of the horizontal side plates and the vertical side plates does not change significantly, so that the temperature on both sides of the raw material is uneven when cooling, which may cause the problem that the inside has been formed while the outside still needs to be cooled.

Utility Model Content

The purpose of the utility model is to provide a plastic product manufacturing molding device to solve the above problems.

In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic product manufacturing molding device, comprising a workbench provided with a support arm;

A hydraulic push rod disposed on the support arm;

A plurality of lower molds are located on the workbench, on which a transmission assembly is arranged, and the transmission assembly is used to keep the lower molds and the hydraulic push rod in relative motion;

The condensation chamber is slidably arranged on the hydraulic push rod, and is provided with a socket which is plug-fitted with the lower mold, and the socket is used to communicate with the lower mold.

Preferably, a plurality of heat-conducting rods extending outward are arranged inside the condensation chamber.

Preferably, an annular baffle is provided at the bottom of the condensation chamber, and the annular baffle is slidably matched with the inner wall of the lower mold.

Preferably, a pressure block is provided at the end of the hydraulic push rod and is conical in shape. The pressure block forms a retaining fit with the inner wall of the condensing chamber, and the pressure block is slidably arranged on the heat conducting rod.

Preferably, a rubber sealing ring is provided on the first surface of the pressing block, and the rubber sealing ring contacts the inner wall of the condensation chamber.

Preferably, the lower mold is provided with a water outlet connected to the input end of the filter, and the output end of the filter is connected to the condensation chamber.

Preferably, the transmission assembly comprises:

A transmission rod provided on the hydraulic push rod;

A gear rotatably disposed on the support arm and meshing with the transmission rod for transmission;

A pin wheel rotatably arranged on the support arm and moving synchronously with the gear;

A turntable is rotatably arranged on a workbench and driven by a pin wheel, and is slidably matched with the lower mold through a pin rod.

Preferably, an interface is provided on the lower mold, and a plastic pick is arranged on the interface.

Preferably, the socket includes a cylindrical portion located inside the condensing chamber and a stopper extending outward, and the plastic paddle is opened and closed by the movement of the stopper.

Preferably, an opening is provided on the side surface of the cylindrical portion, the stop block is in a cross structure, and the second surface is an inclined surface.

In the above technical scheme, the utility model provides a plastic product manufacturing molding device, which has the following beneficial effects: the utility model allows the condensate in the condensation chamber to enter the lower mold through the design of the socket, and under the action of the condensate, the temperature of the condensation chamber and the lower mold is reduced, so that the shaped plastic is cooled from the upper and lower sides to avoid uneven heating on both sides. After cooling, the hydraulic push rod drives the condensation chamber to move upward, and at the same time the lower molds move away from each other to achieve demolding from the plastic.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is an overall three-dimensional schematic diagram provided by an embodiment of the utility model;

FIG2 is a schematic diagram of a hydraulic push rod and a pressure block provided in an embodiment of the utility model;

FIG3 is a schematic diagram of a cross-sectional structure of a hydraulic push rod and a pressure block provided in an embodiment of the utility model;

FIG4 is a schematic diagram of a hydraulic push rod provided in an embodiment of the utility model;

FIG5 is a schematic diagram of a transmission assembly provided in an embodiment of the present utility model;

FIG6 is a schematic diagram of a lower mold provided by an embodiment of the utility model;

FIG. 7 is a schematic diagram of a socket and an interface provided in an embodiment of the utility model.

Description of reference numerals:

1. Workbench; 2. Support arm; 3. Hydraulic push rod; 31. Press block; 4. Condensation chamber; 41. Heat conducting rod; 5. Socket; 51. Stop block; 6. Interface; 61. Plastic paddle; 7. Transmission rod; 8. Gear; 9. Pin wheel; 10. Turntable; 11. Lower mold.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1-7, a plastic product manufacturing molding device comprises a workbench 1 provided with a support arm 2;

A hydraulic push rod 3 provided on the support arm 2;

A plurality of lower molds 11 are located on the workbench 1, on which a transmission assembly is arranged, and the transmission assembly is used to keep the lower molds 11 and the hydraulic push rod 3 in relative motion;

The condensation chamber 4 is slidably arranged on the hydraulic push rod 3 , and is provided with a socket 5 which is plug-fitted with the lower mold 11 , and the socket 5 is used to be connected with the lower mold 11 .

Specifically, a valve is provided on the liquid inlet of the condensing chamber 4. The above relative movement means that when the hydraulic push rod 3 moves downward, the multiple lower molds 11 are close to each other, and when it moves upward, the multiple lower molds 11 are away from each other.

Furthermore, after the plastic raw material is placed in the lower mold 11, the hydraulic push rod 3 moves downward, and during the movement, the transmission component is driven to transmit, so that the multiple lower molds 11 are close to each other and the plastic raw material is initially shaped, and the valve is opened to allow the condensate to enter the condensation chamber 4 through the valve. Then the condensation chamber 4 moves downward with the hydraulic push rod 3, and the socket 5 of the condensation chamber 4 is inserted into the lower mold 11, and the condensate enters the lower mold 11. At this time, the hydraulic push rod 3 extends to the lower mold 11, and the plastic raw material is shaped again under the joint action of the hydraulic push rod 3 and the lower mold 11. At the same time, under the action of the condensate, the temperature of the condensation chamber 4 and the lower mold 11 is reduced, so that the shaped plastic is cooled from the upper and lower sides to avoid uneven heating on both sides. After cooling, the hydraulic push rod 3 drives the condensation chamber 4 to move upward, and at the same time, the lower molds 11 are driven away from each other by the transmission component to achieve demolding from the plastic.

In the above technology, the design of the socket 5 allows the condensate in the condensate chamber 4 to enter the lower mold 11. Under the action of the condensate, the temperature of the condensate chamber 4 and the lower mold 11 is reduced, so that the shaped plastic is cooled from both the upper and lower sides to avoid uneven heating on both sides. After cooling, the hydraulic push rod 3 drives the condensate chamber 4 to move upward, and at the same time the lower molds 11 move away from each other to achieve demolding from the plastic.

As an embodiment further provided by the present invention, a plurality of heat-conducting rods 41 extending outward are arranged inside the condensation chamber 4 .

Specifically, since the thermal conductivity of the heat conducting rod 41 is relatively large, the condensate in the condensation chamber 4 contacts the heat conducting rod 41 and causes one end of the heat conducting rod 41 to cool rapidly, thereby cooling the plastic at the other end of the heat conducting rod 41 .

As another embodiment further provided by the present invention, an annular baffle is provided at the bottom of the condensation chamber 4 , and the annular baffle is slidably matched with the inner wall of the lower mold 11 .

Specifically, when there is too much plastic raw material in the lower mold 11, the hydraulic push rod 3 will move downward, driving the condensation chamber 4 to squeeze the excess plastic raw material out of the lower mold 11. At this time, the annular baffle cuts the plastic raw material at the edge of the lower mold 11, and the cut part falls on the workbench 1, which is convenient for subsequent recycling. At the same time, the annular baffle can prevent the remaining plastic raw material inside the lower mold 11 from overflowing.

As another embodiment further provided by the present invention, a pressure block 31 is provided at the end of the hydraulic push rod 3 and the pressure block 31 is conical. The pressure block 31 forms a retaining fit with the inner wall of the condensation chamber 4 and the pressure block 31 is slidably disposed on the heat conducting rod 41 .

Specifically, during the downward movement of the hydraulic push rod 3, the rubber sealing ring on the pressing block 31 conflicts with the inner wall of the condensation chamber 4. At this time, the rubber sealing ring seals the inner wall of the neck of the condensation chamber 4. The pressing block 31 provides an upward supporting force for the condensation chamber 4 to prevent the condensation chamber 4 from slipping. When the condensation chamber 4 contacts the lower mold 11, the lower mold 11 supports the condensation chamber 4 so that the height of the condensation chamber 4 is fixed. At this time, the rubber sealing ring no longer conflicts with the inner wall of the condensation chamber 4, and the inner wall of the neck of the condensation chamber 4 is not closed, so that the condensate can flow downward and enter the lower mold 11 through the socket 5. The pressing block 31 slides downward along the heat conducting rod 41 and presses the plastic original The material is extruded, and the coolant passes through the heat-conducting rod 41 to reduce the temperature of the pressing block 31, thereby cooling the upper side of the plastic raw material. After cooling, the hydraulic push rod 3 is moved upward, and the pressing block 31 moves upward along the heat-conducting rod 41, while the position of the heat-conducting rod 41 remains unchanged. At this time, the contact area between the molded plastic and the pressing block 31 is gradually reduced, so that the friction resistance between the molded plastic and the pressing block 31 is correspondingly reduced, so that the upper side of the molded plastic is demolded, and the pressing block 31 continues to move upward and makes the rubber sealing ring contact with the inner wall of the neck of the condensation chamber 4 again, so that the condensate no longer flows downward, and the pressing block 31 drives the condensation chamber 4 to move upward for a distance and then reset.

As another embodiment further provided by the present invention, a water outlet connected to the input end of the filter is provided on the lower mold 11 , and the output end of the filter is connected to the condensation chamber 4 .

Specifically, after the condensate enters the condensation chamber 4, it enters the lower mold 11 through the socket 5. During the flow process, some impurities may be mixed into the condensate. Then, the condensate flows out of the water outlet of the lower mold 11 and enters the input end of the filter. After the impurities are removed in the filter, it is then collected into the condensation chamber 4 through the output end to realize the circulation of the condensate.

As another embodiment further provided by the present invention, the transmission assembly includes:

A transmission rod 7 is arranged on the hydraulic push rod 3;

A gear 8 rotatably disposed on the support arm 2 and meshing with the transmission rod 7;

A pin wheel 9 rotatably disposed on the support arm 2 and moving synchronously with the gear 8;

A turntable 10 is rotatably disposed on the workbench 1 and driven by a pin wheel 9, and is slidably matched with a lower mold 11 through a pin rod.

Specifically, when the hydraulic push rod 3 moves downward, it drives the transmission rod 7 to move downward. Taking the direction shown in Figure 5 as a reference, the transmission rod 7 moves downward and drives the gear 8 to rotate clockwise. The gear 8 drives the pin wheel 9 to rotate clockwise synchronously through the transmission belt. The pin wheel 9 drives the turntable 10 to rotate counterclockwise through the pin gear transmission. The counterclockwise rotation of the turntable 10 makes the pin rod of the lower mold 11 and the boring hole opened on the turntable 10 slide together, so that the pin rod drives the lower mold 11 to approach each other. When the hydraulic push rod 3 moves upward, the gear 8 rotates counterclockwise, thereby driving the pin wheel 9 to rotate counterclockwise synchronously. The pin wheel 9 drives the turntable 10 to rotate clockwise, and the turntable 10 drives the lower molds 11 away from each other.

As another embodiment further provided by the present invention, the socket 5 includes a cylindrical portion located inside the condensation chamber 4 and a stopper 51 extending outward, and the plastic paddle 61 is opened and closed by the movement of the stopper 51 .

Specifically, the condensation chamber 4 moves downward and drives the socket 5 to be plugged into the interface 6. The cross end of the abutment 51 in the socket 5 abuts against the plastic paddle 61 and causes the plastic paddle 61 to deform. At this time, the plastic paddle 61 opens, and the condensate passes through the cylindrical portion and then enters the lower mold 11 through the plastic paddle 61. When the condensation chamber 4 moves upward, the socket 5 is separated from the interface 6. At this time, the abutment 51 no longer presses the plastic paddle 61, and the plastic paddle 61 recovers its deformation, thereby blocking external dust.

Working principle: after putting the plastic raw material into the lower mold 11, the hydraulic push rod 3 moves downward, and the rubber sealing ring on the pressure block 31 conflicts with the inner wall of the condensation chamber 4. At this time, the rubber sealing ring closes the inner wall of the neck of the condensation chamber 4, and the pressure block 31 provides an upward supporting force for the condensation chamber 4 to prevent the condensation chamber 4 from slipping. At the same time, when the hydraulic push rod 3 moves downward, it drives the transmission rod 7 to move downward. Taking the direction shown in Figure 5 as a reference, the transmission rod 7 moves downward to drive the gear 8 to rotate clockwise, and the gear 8 drives the pin wheel 9 to rotate synchronously clockwise through the transmission belt. The pin wheel 9 drives the turntable 10 to rotate counterclockwise through the pin gear transmission. The turntable 10 rotates counterclockwise so that the pin rod of the lower mold 11 and the boring hole opened on the turntable 10 are slidingly matched, so that the pin rod drives the lower mold 11 to approach each other. When the condensation chamber 4 contacts the lower mold 11, the lower mold 11 supports the condensation chamber 4 so that the height of the condensation chamber 4 is fixed. At this time, the rubber sealing ring no longer conflicts with the inner wall of the condensation chamber 4, and the condensation chamber 4 The inner wall of the neck is not closed, so that the condensate can flow downward and enter the lower mold 11 through the socket 5. The pressing block 31 slides downward along the heat-conducting rod 41 and extrude the plastic raw material. The coolant passes through the heat-conducting rod 41 to reduce the temperature of the pressing block 31, thereby cooling the upper side of the plastic raw material. After cooling, the hydraulic push rod 3 is moved upward, the gear 8 rotates counterclockwise, thereby driving the pin wheel 9 to rotate synchronously counterclockwise, the pin wheel 9 drives the turntable 10 to rotate clockwise, and the turntable 10 drives the lower mold 11 away from each other, and the pressing block 31 moves upward along the heat-conducting rod 41, while the position of the heat-conducting rod 41 remains unchanged. At this time, the contact area between the molded plastic and the pressing block 31 gradually decreases, so that the friction resistance between the molded plastic and the pressing block 31 is correspondingly reduced, so that the upper side of the molded plastic is demolded, and the pressing block 31 continues to move upward and causes the rubber sealing ring to conflict with the inner wall of the neck of the condensation chamber 4 again, so that the condensate no longer flows downward, and the pressing block 31 drives the condensation chamber 4 to move upward for a distance and then reset.

The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (10)

1. A device for manufacturing and shaping plastic products, which is characterized by comprising a workbench (1) provided with a supporting arm (2);

A hydraulic push rod (3) arranged on the support arm (2);

A plurality of lower dies (11) positioned on the workbench (1), and a transmission assembly is arranged on the lower dies, wherein the transmission assembly is used for keeping the lower dies (11) and the hydraulic push rod (3) relatively movable;

The condensing cavity (4) is slidably arranged on the hydraulic push rod (3), a socket (5) which is in plug-in fit with the lower die (11) is arranged on the condensing cavity, and the socket (5) is used for being communicated with the lower die (11).

2. A plastic product-based manufacturing and shaping device according to claim 1, characterized in that the condensation chamber (4) is internally provided with a plurality of outwardly extending heat conducting bars (41).

3. The plastic product-based manufacturing and shaping device according to claim 1, wherein the bottom of the condensation chamber (4) is provided with an annular baffle which is in sliding fit with the inner wall of the lower mold (11).

4. The plastic product-based manufacturing and forming device according to claim 2, wherein a pressing block (31) is arranged at the end part of the hydraulic push rod (3) and the pressing block (31) is conical, the pressing block (31) is in blocking and dismantling fit with the inner wall of the condensation cavity (4), and the pressing block (31) is arranged on the heat conducting rod (41) in a sliding mode.

5. The plastic product-based manufacturing and shaping device according to claim 4, wherein the first face of the pressing block (31) is provided with a rubber sealing ring, which is in contact with the inner wall of the condensation chamber (4).

6. A plastic product-based manufacturing and shaping device according to claim 1, characterized in that the lower moulds (11) are each provided with a water outlet communicating with the input end of a filter, the output end of which is in communication with the condensation chamber (4).

7. The plastic product-based manufacturing and shaping device of claim 1, wherein the transmission assembly comprises:

a transmission rod (7) arranged on the hydraulic push rod (3);

A gear (8) which is rotatably arranged on the supporting arm (2) and is meshed with the transmission rod (7) for transmission;

A pin wheel (9) which is rotatably arranged on the supporting arm (2) and keeps synchronous movement with the gear (8);

The rotary table (10) is rotatably arranged on the workbench (1) and driven by the pin wheel (9), and is in sliding fit with the lower die (11) through the pin rod.

8. The plastic product-based manufacturing and forming device according to claim 1, wherein the lower die (11) is provided with an interface (6), and the interface (6) is provided with a plastic poking piece (61).

9. A plastic product-based manufacturing and shaping device according to claim 8, characterized in that the socket (5) comprises a cylindrical part inside the condensation chamber (4) and an outwardly extending abutment (51), the plastic plectrum (61) being opened and closed by the movement of the abutment (51).

10. The plastic product-based manufacturing and shaping device according to claim 9, wherein the cylindrical portion is provided with an opening on a side surface thereof, the abutment block (51) has a cross structure, and the second surface is an inclined surface.