CN206633290U - Mold addition device - Google Patents

Abstract

The utility model discloses a mold feeding device, which comprises: a feeding arm (1), the feeding arm (1) includes a feeding port (11), used to receive raw materials from a feeding bin (2); and a feeding nozzle ( 12), in order to inject the received raw material into the mold (4); the driving arm (3), the driving arm (3) is connected to the charging arm (1) to drive the feeding port (11) of the charging arm ) is connected to the discharge port (21) of the silo (2), and/or the injection nozzle (12) driving the charging arm (1) is connected to the mold (4); and a control module, the The control module controls the action of the driving arm (3), and detects the material requirements of the mold (4) to control the weight, temperature and type of the received raw materials according to the detection results. The mold feeding device of the utility model can complete mold feeding without manual intervention, thereby improving processing efficiency.

Description

Mold feeding device

technical field

The utility model relates to the field of molds, in particular to a mold feeding device.

Background technique

Rotational molding, also known as rotational molding and rotational casting, is a hollow molding method for thermoplastics. Rotational molding is to inject molten plastic into a rotating mold, and the centrifugal force forces the molten plastic to stick to the inner wall of the mold, thereby using heating and rotation along two axes to produce various hollow plastic parts. Specifically, the powdery or pasty material is first injected into the mold, and through the heating of the mold and the vertical and horizontal rolling and rotation, the material is evenly filled with the inner cavity of the mold and melted by its own gravity and centrifugal force, and then released after cooling. Hollow products are obtained by molding.

The existing rotomolding feeding method is to manually weigh and divide the powder and add it to the rotomolding mold. After the feeding is completed, the mold is closed, and then the mold system is rotated, heated and melted, cooled and solidified, and the mold is opened to produce the product. And so on a series of processing. This operation process has a long processing cycle and is not suitable for mass production. In addition, when secondary feeding is required, not only does it take too long to operate until the mold cools down, but it also leads to poor safety due to problems such as high temperature and splashing.

Utility model content

The purpose of this utility model is to provide a kind of equipment, this equipment can realize feeding into the mould automatically, thereby greatly improves the processing efficiency.

In order to achieve the above object, the utility model provides a mold feeding device, comprising: a feeding arm, the feeding arm includes a feeding port, used to receive raw materials from the silo; and a material injection nozzle, used to inject the received raw materials into In the mold; a driving arm, which is connected to the charging arm to drive the feeding port of the charging arm to be connected to the discharge port of the silo, and/or drive the injection nozzle of the charging arm to be connected to the mold; and a control module, the control module controls the movement of the driving arm, and detects the material requirements of the mold to control the weight, temperature and type of the received raw materials according to the detection results.

Preferably, the feeding arm further includes an accommodating cavity for accommodating the received raw materials; wherein, the feeding port is opened on the top of the accommodating cavity, and the injection nozzle is opened in the accommodating bottom of the cavity.

Preferably, the accommodating chamber is provided with a piston plate capable of sliding along the chamber wall of the accommodating chamber to change the pressure in the accommodating chamber.

Preferably, the piston plate is arranged at an end of the accommodating cavity away from the injection nozzle.

Preferably, the cavity wall of the accommodating cavity and the injection nozzle are made of high temperature resistant and thermal insulation material.

Preferably, the silo includes a weighing unit, and the control module controls the opening and closing of the outlet of the silo according to the detection result and the weight measured by the weighing unit.

Preferably, a discharge valve of the silo is provided upstream of the weighing unit, and the control module controls the on-off of the discharge valve to control the opening and closing of the discharge port of the silo.

Preferably, a temperature detection unit and a heating unit are provided in the accommodating cavity, and the control module controls the start and stop of the heating unit according to the detection result and the temperature measured by the temperature detection unit.

Preferably, the silo includes a plurality of storage units storing different types of raw materials, and the output ports of each of the storage units communicate with the discharge port of the silo; the control module controls each of the The opening and closing of the output port of the material storage unit is used to select the required type of raw material according to the detection result.

Preferably, the driving arm comprises a plurality of boom sections rotatably connected together in sequence, wherein the last boom section is connected to the base of the driving arm, and the first boom section is connected to the feeding arm.

Through the above technical proposal, the utility model forms an automatic feeding system that is easy to operate. Under the control of the control module, the driving arm drives the feeding arm to connect to the discharge port and/or mold of the silo, so that the polyethylene powder or paste raw material supplied by the silo can be placed into the feeding arm and injected through the feeding arm into the mold. The control module detects the material requirements of the mold, and automatically controls the weight, temperature and type of raw materials entering the feeding arm according to the detection results. In this way, from the selection of raw material types, the control of weight temperature, to the position movement of the feeding arm, all can be completed without manual intervention. Thereby, processing efficiency can be improved. It has been verified that the improved process can increase the efficiency by about 26% to 54%. In addition, since the above process is completed without manual intervention, the problems of time-consuming and poor safety of secondary feeding are also solved.

Other features and advantages of the present utility model will be described in detail in the following specific embodiments.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, together with the following specific embodiments, are used to explain the utility model, but do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a structural representation of a mold feeding device according to the utility model;

Fig. 2 is a structural schematic diagram of the cooperation relationship between the mold feeding device and the mold according to the utility model.

Explanation of reference signs

1 Feeding arm 11 Filling port 12 Filling nozzle

13 Accommodating cavity 14 Piston plate 15 Temperature detection unit

16 Heating unit 17 Injection valve

2 Silo 21 Outlet 22 Weighing unit

23 Discharge valve

3 Drive arm 31 Terminal boom section 32 Base

33 First boom section

4 molds

detailed description

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the utility model, and are not intended to limit the utility model.

Referring to Fig. 1 and Fig. 2, the utility model provides a mold feeding device. The mold feeding device includes a feeding arm 1 and a driving arm 3 connected with the feeding arm 1 . The driving arm 3 is used to drive the charging arm to move. Specifically, the driving arm 3 may be a structure formed by a multi-section arm section. These arm sections are rotatably connected together in sequence, and can flexibly expand, contract and change angles, so that the feeding arm 1 can be moved to any suitable position. The stub arm 31 can be connected to the base 32 of the drive arm 3 . The stub arm 31 is preferably connected to the base 32 in a rotatable manner, so that the movement of the driving arm 3 can be made more flexible. The first joint arm 33 is the farthest end of the driving arm 3 and is connected to the charging arm 1 so that the charging arm 1 can move within the maximum driving range of the driving arm 3 . There can be many ways of connection between the first section arm 33 and the feeding arm 1 , whichever can keep the feeding arm 1 at an accurate position. It can be understood that the movement of the driving arm 3 will be more flexible when the number of arm sections of the driving arm 3 is large. It should be understood that the driving arm 3 can also be in other structural forms, for example, it can be supported under the feeding arm 1 and form a movable structure such as a four-bar linkage with the feeding arm 1, as long as the feeding arm 3 can be automatically moved under the control of the control module. The structure in which the arm 1 is driven to a suitable position is the same concept as the present invention, and is within the protection scope of the present invention.

As shown in FIG. 1 , the feeding arm 1 includes a feeding port 11 and a feeding nozzle 12 . Wherein, the feed port 11 is used to dock with the discharge port 21 of the feed bin 2 , so that the raw materials in the feed bin 2 can be put into the feed arm 1 . The injection nozzle 12 is used to dock with the injection port of the mold 4 , so that the raw material placed in the feeding arm 1 can be injected into the mold 4 . As mentioned above, the driving arm 3 can drive the charging arm 1 to move. When it is necessary to put the raw material into the feeding arm 1, the driving arm 3 drives the feeding arm 1 to move to the bottom of the bin 2, and makes the feeding port 11 of the feeding arm 1 face the discharging port 21 of the bin 2, realizing Raw material is placed. After the raw materials are put in, the discharge port 21 of the feed bin 2 is closed, and the feed port 11 of the feeding arm 1 is closed. Then, the driving arm 3 drives the feeding arm 1 to move toward the mold 4, so that the injection nozzle 12 of the feeding arm 1 is facing the injection port of the mold 4, thereby realizing mold feeding. Another embodiment is that the inlet 11 of the feeding arm 1 and the injection nozzle 12 can face the outlet 21 of the bin 2 and the injection opening of the mold 4 at the same time. In this way, after the raw material is inserted, the feeding arm 1 can implement feeding to the mold 4 without moving its position.

According to an embodiment of the present utility model, the mold feeding device further includes a control module (not shown). The control module can control the action of the driving arm 3 so that the driving arm 3 can accurately drive the feeding arm 1 to move to a proper position. Moreover, the control module is also used to detect the material requirements of the mold 4 . As shown in FIG. 2 , in the working condition that the mold feeding device feeds materials to multiple molds 4 , the type, weight and temperature of the raw materials to be added to different molds 4 may be different. At this time, the control module can automatically detect the material requirement of the mold 4 to be fed at present, and then control other components of the mold feeding device accordingly. For example, but not limited to, the addresses of multiple molds 4 can be set in a preset order, and the material requirements of each mold can be input into the control module with a preset program. When the mold feeding device is started, the control module can detect the address of the mold 4 to be fed at present, so as to know the material requirement of the mold 4 . And so on.

Through the above, the driving arm 3 can drive the feeding arm 1 to be connected to the discharge port 21 and/or the mold 4 of the silo 2 under the control of the control module, so that the raw materials supplied by the silo 2 can be placed in the feeding arm 1, and It can be injected into the mold 4 through the charging arm 1 . The control module detects the material requirements of the mold 4, and automatically controls the weight, temperature and type of raw materials entering the feeding arm 1 according to the detection results. In this way, the selection of raw material types, the control of weight and temperature, and the positional movement of the feeding arm 1 can all be completed without manual intervention. In addition, mechanical injection can avoid the injury caused by material splashing, thus making the feeding process safer and more reliable.

Continuing to refer to FIG. 1 and FIG. 2 , according to the embodiment of the present utility model, the loading arm 1 is provided with an accommodating chamber 13 for accommodating the raw material received from the silo 2 . The feeding arm 1 may be a hollow structure composed of a plurality of plate-shaped parts, and the accommodating cavity 13 may be an independent cavity isolated from the hollow structure. The feeding arm 1 can also be a solid structure supported by a whole piece of material, and the accommodating cavity 13 can be an independent cavity excavated from the solid structure. Preferably, the volume occupied by the accommodating chamber 13 is not greater than 2/3 of the volume of the feeding arm 1 , so that the feeding arm 1 has a sufficient contact area for connecting with the driving arm 3 . In this way, on the one hand, the connection strength can be ensured, and on the other hand, it is easier to control the balance of the feeding arm 1 so that it can be kept in a proper position for operation without overturning. As shown in FIG. 1 , the feed port 11 is set on the top of the accommodating chamber 13 so as to be connected with the discharge port 21 of the silo 2 , and also facilitate the feeding of raw materials in the accommodating chamber 13 . The injection nozzle 12 is opened at the bottom of the accommodating cavity 13 so that the raw material leaves the accommodating cavity 13 .

According to an embodiment of the present utility model, a piston plate 14 is disposed in the accommodating chamber 13 . The piston plate 14 can slide along the cavity wall of the accommodating cavity 13 , thereby changing the pressure in the accommodating cavity 13 by changing the internal volume of the accommodating cavity 13 . As shown in Figure 1, when the piston plate 14 slides to the left side of the paper, the internal volume of the accommodation chamber 13 becomes smaller and the pressure increases; when the piston plate 14 slides to the right side of the paper, the volume of the accommodation chamber 13 The internal volume becomes larger and the pressure becomes smaller. By changing the pressure in the accommodating chamber 13, the feeding speed of the injection nozzle 12 can be adjusted. When the pressure increases, the feeding rate increases; when the pressure decreases, the feeding rate decreases.

According to an embodiment of the present utility model, the piston plate 14 is arranged at an end of the accommodating cavity 13 away from the injection nozzle 12 . That is to say, the piston plate 14 and the injection nozzle 12 are arranged at almost the two ends of the accommodating chamber 13 which are farthest from each other. When the piston plate 14 is slid and pressurized, the injection nozzle 12 is at the farthest position from the piston plate 14 , and all the raw materials in the accommodating chamber 13 will gather toward the injection nozzle 12 . In this way, no dead space will be formed in the accommodating chamber 13 for the raw material to hide, and the pressurization operation efficiency of the piston plate 14 will be the highest.

In addition, according to the embodiment of the present utility model, the cavity wall of the accommodating cavity 13 and the injection nozzle 12 are made of high-temperature-resistant and heat-insulating materials. When the raw material is pasty raw material, the high-temperature-resistant heat-insulating material can keep the accommodating cavity 13 at an appropriate temperature, thereby preventing the raw material from solidifying. In addition, during the secondary feeding, it is not necessary to wait until the mold 4 is cooled, and the high temperature-resistant injection nozzle 12 can be directly connected to the injection port of the mold 4 . Therefore, the time until the mold 4 is cooled in the prior art can be saved, and the processing efficiency is greatly improved.

Continuing to refer to FIG. 1 and FIG. 2 , according to an embodiment of the present utility model, the silo 2 includes a weighing unit 22 for weighing the raw material to be put into the feeding arm 1 . As mentioned above, the control module can detect the material requirement of the mold 4 to be fed currently, including the weight of the material. The upstream of the weighing unit 22 is provided with a discharge valve 23 of the silo 2 for controlling the opening and closing of the discharge port 21 . The on-off of the discharge valve 23 is controlled by the control module. During the discharging process of the silo 2, the weighing unit 22 feeds back the measured weight of the raw material. When the weight measured by the weighing unit 22 matches the required material weight detected by the control module, the control module controls the discharge valve 23 to close.

According to an embodiment of the present utility model, a temperature detection unit 15 and a heating unit 16 are disposed in the accommodating cavity 13 . As mentioned above, the control module can detect the material requirement of the mold 4 to be fed currently, including the temperature of the material. Under different temperature conditions, the raw materials can have different properties. For example but not limited to, when the temperature is low, the raw material can be kept in powder form; when the temperature is high, the plastic powder can be melted to form a pasty raw material. When the control module detects that the mold 4 to be fed currently needs pasty raw materials, it can control the heating unit 16 to start to heat the raw materials in the accommodating cavity 13 . The temperature detection unit 15 feeds back the temperature in the accommodating chamber 13 . When the temperature reaches the melting temperature, or after maintaining the temperature for a period of time, the control module can control the heating unit 16 to stop. Since the cavity wall of the accommodating cavity 13 is made of high-temperature-resistant and heat-insulating material, the raw material can be kept in a paste state until the feeding is completed. As shown in FIG. 1 , the heating unit 16 is arranged at the bottom of the accommodating chamber 13 to ensure a maximum heating contact area with the raw material and promote the diffusion of released heat throughout the accommodating chamber 13 .

Still refer to FIG. 1 and FIG. 2 . As mentioned above, the control module can detect the material requirement of the mold 4 to be fed currently, including the type of material. Different types of raw materials can be stored in different feed bins 2. According to the type of material used in the mold 4 to be fed at the moment, the control module controls the driving arm 3 to drive the feeding arm 1 to selectively connect to the feeder for storing the required types of raw materials. Under the warehouse 2, raw materials are placed. Preferably, the silo 2 includes a plurality of storage units for storing different kinds of raw materials, and the output port of each storage unit communicates with the discharge port 21 of the silo 2 . The control module controls the opening and closing of the output ports of each material storage unit, so that different types of raw materials can be dropped from the material outlet 21 of the material bin 2 respectively. When the control module detects the material type of the mold 4 to be fed, it can control the output port of the corresponding storage unit to open, so that this type of material can be placed into the feeding arm 1 .

The preferred embodiment of the utility model has been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the specific details of the above-mentioned embodiment, and within the scope of the technical concept of the utility model, the technical solution of the utility model can be carried out in many ways. These simple modifications all belong to the protection scope of the present utility model.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, the utility model will not further describe various possible combinations.

In addition, any combination of various implementations of the present invention can also be made, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.

Claims (10)

1. A kind of 1. mold addition device, it is characterised in that including：

   Feed arm (1), and the charging arm (1) includes charging aperture (11), to receive the raw material for coming from feed bin (2)；And material injection nozzle (12), the raw material of reception is injected into mould (4)；

   Actuating arm (3), the actuating arm (3) are connected to the charging arm (1) to drive the charging aperture (11) of the charging arm to connect Material injection nozzle (12) to the discharging opening (21) of the feed bin (2), and/or the driving charging arm (1) is connected to the mould (4)；And

   Control module, the control module control the action of the actuating arm (3), and detect the materials demand of the mould (4) To control weight, temperature and the species of the raw material of the reception according to testing result.
2. 2. mold addition device according to claim 1, it is characterised in that the charging arm (1) also includes accommodating cavity (13), accommodating the raw material of the reception；Wherein, the charging aperture (11) is opened in the top of the accommodating cavity (13), institute State the bottom that material injection nozzle (12) is opened in the accommodating cavity (13).
3. 3. mold addition device according to claim 2, it is characterised in that being provided with the accommodating cavity (13) being capable of edge The piston plate (14) that the cavity wall of the accommodating cavity (13) is slided, to change the pressure in the accommodating cavity (13).
4. 4. mold addition device according to claim 3, it is characterised in that the piston plate (14) is arranged on described accommodating One end of the remote material injection nozzle (12) of chamber (13).
5. 5. mold addition device according to claim 2, it is characterised in that the cavity wall of the accommodating cavity (13) and the note The material for expecting mouth (12) is high-temperature-resistant thermal-insulation material.
6. 6. the mold addition device according to any one of claim 1-5, it is characterised in that the feed bin (2) includes claiming Weight unit (22), the weight that the control module measures according to the testing result and the weighing unit (22), described in control The opening and closing of the discharging opening (21) of feed bin (2).
7. 7. mold addition device according to claim 6, it is characterised in that the upstream of the weighing unit (22) is provided with The outlet valve (23) of the feed bin (2), the control module control outlet valve (23) break-make to control the feed bin (2) The opening and closing of discharging opening (21).
8. 8. the mold addition device according to any one of claim 2-5, it is characterised in that set in the accommodating cavity (13) Temperature detecting unit (15) and heating unit (16) are equipped with, the control module is according to the testing result and the temperature detection The temperature that unit (15) measures, control the startup and stopping of the heating unit (16).
9. 9. the mold addition device according to any one of claim 1-5, it is characterised in that the feed bin (2) includes more The individual storing unit for storing different types of raw material, the output port of each storing unit and going out for the feed bin (2) Material mouth (21) is connected；The control module controls the opening and closing of the output port of each storing unit, with according to the inspection Survey the raw material of species needed for result selection.
10. 10. mold addition device according to claim 1, it is characterised in that the actuating arm (3) includes sequentially rotatable The more piece arm joint that ground links together, wherein, minor details arm joint (31) is connected to the base (32) of the actuating arm (3), first joint arm Section (33) is connected to the charging arm (1).