Automatic forming system and production process

Abstract

The invention discloses an automatic molding system and a production process, comprising a feeder for placing powder and a compression molding machine for compression molding the powder, the compression molding machine comprising a molding frame and a molding mold, and also comprising a transfer mechanism for transferring the powder from the feeder to the molding mold for compression molding; the transfer mechanism comprises a transfer fixture and a manipulator for placing the powder, the manipulator can drive the transfer fixture to move between the feeder and the compression molding machine; wherein the transfer fixture, under the action of the manipulator, can move the powder on the feeder to the movable molding mold, pour the powder in the transfer fixture into the molding mold for compression molding, thereby realizing the automatic production of amino molding plastic products, replacing the traditional manual operation, improving production efficiency, and having stable and reliable quality.

Description

Technical Field

[0001] The present invention relates to plastic product forming equipment, and more particularly to an automatic forming system and a production process. Background Art

[0002] The products made from amino molding plastic (electric jade powder) produced in accordance with GB13454-92 after heating and pressurizing have good physical and mechanical properties, insulation properties, good self-extinguishing and mildew resistance, and are suitable for molding daily electrical appliances, various buttons, bottle caps, mechanical accessories and tableware, etc.

[0003] When processing plastics, it is usually necessary to weigh a certain amount of material manually and transfer the material to the processing mold for compression molding. After the processing is completed, the product needs to be taken out. Since the production process is basically manually operated, a large number of operators are inevitably required. At the same time, due to the requirements of the production tasks, the labor intensity of the operators is very high, and the requirements for operators are high. With a large number of operators, the labor cost is also high, which leads to high production costs. In addition, since the operation of molding molds is a dangerous job, there is a certain risk in the production process. Once an accident occurs, it may cause personal injury to the operator. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide an automatic forming system and a production process.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automatic molding system comprises a feeder for placing powder and a compression molding machine for compression molding the powder, the compression molding machine comprises a molding frame and a molding mold, and also comprises a transfer mechanism for transferring the powder from the feeder to the molding mold for compression molding; the transfer mechanism comprises a transfer fixture for placing the powder and a manipulator, the manipulator can drive the transfer fixture to move between the feeder and the compression molding machine; when the transfer fixture moves to the feeder and is aligned with a discharge port for feeding, the manipulator will drive the transfer fixture to move to the molding mold, and pour the powder in the transfer fixture into the molding mold for compression molding.

[0007] The present invention is further provided that: the transfer fixture includes a transfer frame, and a powder cup assembly for adding materials is arranged on one side of the transfer frame; the powder cup assembly includes one or more powder cups, a material cover for sealing the powder cup, and an opening and closing drive for driving the material cover to rotate; when the opening and closing drive drives the material cover to rotate, the material cover will be staggered with the cup mouth of the powder cup, thereby opening the powder cup.

[0008] The present invention is further provided that: the material cover comprises a material cover body and one or more covers arranged on the material cover body, the material cover body is arranged on the output shaft of the opening and closing drive, and the cover is placed on the cup mouth of the corresponding powder cup. When the material cover is rotated, the cover and the cup mouth of the powder cup are staggered, thereby opening the powder cup.

[0009] The present invention further provides that: a limit block for limiting the rotation angle of the material cover is arranged on the transfer frame, and when the opening and closing driver drives the material cover to rotate and seal or open the powder cup, the material cover will collide with the limit block.

[0010] The present invention further provides that: the transfer rack is provided with a mounting hole for mounting the powder cup, wherein the powder cup is fixed to the mounting hole by means of screws.

[0011] The present invention further provides that: a clamping assembly for clamping the compression molded part is provided on the other side of the transfer frame relative to the powder cup assembly, the clamping assembly includes a left clamping arm, a right clamping arm and a clamping driver, and the clamping driver can drive the left clamping arm and the right clamping arm to move closer together or open apart.

[0012] The present invention further provides that: the clamping surfaces of the left clamping arm and the right clamping arm are both provided with rubber blocks.

[0013] The present invention further provides that: the transfer rack is provided with a blowing nozzle, one end of the blowing nozzle is connected to the air pipe, and the other end extends forward, and when the transfer rack is close to the forming mold, the blowing nozzle blows away the debris in the forming mold cavity.

[0014] The present invention further provides: the molding machine frame is provided with a scraper, when the clamping assembly takes out the molded part from the molding die, the clamping assembly will move close to the scraper and scrape off the burrs of the molded part

[0015] The present invention also provides an automatic forming production process, comprising the following steps:

[0016] Step 1: Start the manipulator and move the transfer fixture to the discharge port of the feeder, open the powder cover on the powder cup, and add powder to each powder cup respectively;

[0017] Step 2: After the feeding is completed, close the powder cover on the powder cup, and the manipulator rotates and moves with the transfer fixture to the forming mold to wait;

[0018] Step 3, when the molding mold is opened, the air blowing nozzle is started to clean the debris in the molding mold cavity, and at the same time, the manipulator brings the transfer fixture into the molding mold so that the clamping assembly clamps the molded part from the molding mold;

[0019] Step 4, the manipulator takes the transfer fixture out of the molding mold, and the blowing nozzle is started again to perform secondary cleaning of debris in the molding mold cavity;

[0020] Step 5: The manipulator brings the transfer fixture into the molding die again, so that the mouth of the powder cup faces downward and is aligned with the corresponding molding cavity, and the powder cover on the powder cup is opened at the same time, and the powder is poured into each molding cavity at the same time;

[0021] Step 6: The manipulator takes the transfer fixture out of the molding die again, and the molding die is closed to perform compression molding on the powder;

[0022] Step 7, the transfer fixture clamps the molded part to perform burr treatment;

[0023] Step 8: Move the processed molded parts to the unloading area, and the manipulator brings the transfer fixture back to the discharge port of the feeder. The feeder refills the powder cup of the transfer fixture to carry out the next working cycle.

[0024] Beneficial effects of the invention: The invention provides an automatic molding system and a production process, in which a transfer mechanism is arranged between a feeder and a compression molding machine, wherein a transfer fixture, under the action of a manipulator, can move the powder on the feeder to a movable molding mold, and pour the powder in the transfer fixture into the molding mold for compression molding, thereby realizing the automated production of amino molding plastic products, replacing the traditional manual operation, improving production efficiency, and having stable and reliable quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of an automatic forming system of the present invention;

[0026] Figure 2 Schematic diagram of the transfer fixture Figure 1 ;

[0027] Figure 3 Schematic diagram of the transfer fixture Figure 2 ;

[0028] Figure 4 This is an exploded view of the transfer fixture;

[0029] Figure 5 It is a schematic diagram of the structure of the transfer rack;

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Feeder; 2. Compression molding machine; 21. Molding frame; 221. Scraper; 22. Molding mold; 3. Transfer fixture; 31. Transfer frame; 311. Mounting hole; 312. Limit block; 32. Powder cup assembly; 321. Powder cup; 322. Material cover; 3221. Material cover body; 3222. Cover; 323. Opening and closing drive; 33. Clamping assembly; 331. Left clamping arm; 332. Right clamping arm; 333. Clamping drive; 334. Rubber block; 34. Blowing nozzle 4. Manipulator. DETAILED DESCRIPTION

[0031] See attached Figures 1 to 5 An automatic forming system and a production process of the present invention are further described in detail.

[0032] from Figure 1 It can be seen that an automatic molding system includes a feeder 1 for placing powder and a compression molding machine 2 for compression molding the powder, wherein the feeder 1 is the same as the existing automatic feeder 1 and other equipment structures, and its specific structure is not repeated here, wherein the compression molding machine is also an existing equipment, wherein the compression molding machine 2 includes a molding frame 21 and a molding mold 22, and the molding mold 22 includes a molding upper mold and a molding lower mold, wherein the closing and opening of the molding upper mold and the molding lower mold are realized by the power mechanism on the molding frame 21, which is not repeated here.

[0033] The automatic molding system also includes a transfer mechanism for transferring the powder from the feeder 1 to the molding die 22 for compression molding; the transfer mechanism includes a transfer fixture 3 and a manipulator 4 for placing the powder. The existing manipulator 4 usually has the functions of rotation and forward, backward, left and right movement. How to realize the structure of these functions of the manipulator 4 is an existing technology and will not be repeated here. The manipulator 4 can drive the transfer fixture 3 to move between the feeder 1 and the compression molding machine 2.

[0034] from Figures 2 to 5 It can be seen that the transfer fixture 3 includes a transfer frame 31, and a powder cup assembly 32 for feeding is arranged on one side of the transfer frame 31, and a clamping assembly 33 for clamping the compression molded part is arranged on the other side of the transfer frame relative to the powder cup assembly 32. When the transfer fixture 3 moves to the feeder 1 and the powder cup assembly 32 is aligned with the discharge port for feeding, the manipulator 4 will drive the transfer fixture 3 to move to the molding mold 22, and pour the powder in the transfer fixture 3 into the molding mold 22 for compression molding. At the same time, the clamping assembly 33 will clamp and take out the molded part in the molding mold 22, so that the molded part can be clamped and taken out while the powder is being fed, which is convenient for realizing automated production, thereby improving production efficiency.

[0035] The powder cup assembly 32 includes one or more powder cups 321, a material cover 322 for sealing the powder cup 321, and an opening and closing drive 323 for driving the material cover 322 to rotate. The transfer rack 31 is provided with a mounting hole 311 for mounting the powder cup 321, wherein the powder cup 321 is fixed to the mounting hole 311 by screws; the material cover 322 includes a material cover body 3221 and one or more covers 3222 arranged on the material cover body 3221, the material cover body 3221 is arranged on the output shaft of the opening and closing drive 323, and the covers 3222 correspond to the powder cups 321 one by one.

[0036] In order to prevent the lid 3222 and the mouth of the powder cup 321 from wearing each other due to relative rotation, which may cause impurities to fall into the powder in the powder cup 321 and affect the quality of the molded part, resulting in defects on the surface of the molded part. Therefore, a gap is provided between the lid 3222 and the mouth of the powder cup 321 to prevent the lid 3222 from contacting the mouth of the cup during rotation. The gap is preferably 0.02-0.1mm to prevent the powder from falling from the gap due to the gap being too large.

[0037] The number of the powder cups 321 is set according to the implementation situation. Here, the number of the powder cups 321 is four as an example: the four powder cups 321 are evenly distributed along the central circumference of the transfer frame 31, the opening and closing driver 323 is arranged at the center of the transfer frame 31, and the material cover 322 is also provided with four corresponding covers 3222, wherein the shape of the cover 3222 is adapted to the cup mouth, when the opening and closing driver 323 drives the material cover 322 to rotate, the cover 3222 is staggered with the cup mouth of the powder cup 321, thereby opening the powder cup 321, and when the opening and closing driver 323 drives the material cover 322 to rotate in the opposite direction, the cover 3222 is overlapped with the cup mouth of the powder cup 321, thereby sealing and closing the powder cup 321.

[0038] The transfer frame 31 is provided with a limit block 312 for limiting the rotation angle of the material cover 322. When the opening and closing driver 323 drives the material cover 322 to rotate and cover the closed or open the powder cup 321, the material cover 322 will collide with the limit block 312 to play a limiting role. At the same time, the collision between the material cover 322 and the limit block 312 generates vibration, so that the powder stuck to the inner wall of the powder cup 321 falls off cleanly, thereby preventing the powder from sticking to the inner wall of the powder cup 321 and ensuring the accuracy of the powder addition amount.

[0039] The clamping assembly 33 includes a left clamping arm 331, a right clamping arm 332 and a clamping driver 333. The clamping driver 333 can drive the left clamping arm 331 and the right clamping arm 332 to move closer or open relative to each other to clamp or release the molded part. Rubber blocks 334 are provided on the clamping surfaces of the left clamping arm 331 and the right clamping arm 332 to clamp the molded part more firmly and prevent the left clamping arm 331 and the right clamping arm 332 from scratching the surface of the molded part during the clamping process.

[0040] The transfer rack 31 is provided with a blowing nozzle 34, one end of the blowing nozzle 34 is connected to the air pipe, and the other end extends forward. When the transfer rack is close to the forming mold 22, the blowing nozzle 34 blows away the debris in the cavity of the forming mold 22 to avoid the presence of debris in the cavity of the forming mold 22 and affecting the powder compression molding.

[0041] The molding frame 21 is provided with a scraper 211. When the clamping assembly 33 takes out the molded part from the molding die 22, the clamping assembly 33 moves close to the scraper 211 and scrapes off the burrs of the molded part, thereby processing the burrs of the molded part.

[0042] The working principle of the automatic molding system of the present invention is as follows: after the feeder 1 and the compression molding machine 2 are turned on, the manipulator 4 drives the transfer fixture 3 to move to the feeder 1 and aligns the powder cup assembly 32 with the discharge port. At this time, the discharge port of the feeder 1 is opened and an appropriate amount of powder is added to each powder cup 321 in turn. After the feeding is completed, the opening and closing driver 323 will drive the material cover 322 to rotate and cover the powder cup 321 to prevent the powder from falling or debris from entering. The manipulator 4 will drive the transfer fixture 3 to rotate 180 degrees again, so that the powder cup assembly 32 faces downward, and the clamping assembly 33 moves upward to wait in front of the molding mold 22 of the compression molding machine 2.

[0043] When the forming mold 22 is opened, the blowing nozzle 34 is started to blow away the debris in the cavity of the forming mold 22 to avoid the presence of debris in the cavity of the forming mold 22, which affects the quality of the powder compression molding and causes defects on the surface of the molding. The manipulator 4 drives the transfer fixture 3 to enter the forming mold 22. At this time, the clamping assembly 33 is opened to clamp the molded part in the upper mold of the forming mold 22 and take it out and exit the outside of the forming mold 22. The blowing nozzle 34 is started again to clean the debris in the cavity of the forming mold 22 for the second time. The manipulator 4 enters the forming mold 22 again with the transfer fixture 3. At this time, the opening and closing driver 323 drives the material cover 322 to rotate and open the powder cup 321. During the opening process of the material cover 322, it will collide with the limit block 312 to generate vibration, so that the powder stuck on the inner wall of the powder cup 321 will fall off cleanly, and a sufficient amount of powder is poured into the cavity of the lower mold of the forming mold 22 to ensure the accuracy of the powder feeding amount.

[0044] The manipulator 4 with the transfer clamp 3 exits the molding die 22 again, and the clamping assembly 33 moves close to the scraper 211 and scrapes off the burrs of the molded part to achieve burr treatment of the molded part. At the same time, the molding die 22 is closed to perform compression molding on the powder, thereby achieving automated production of amino molding plastic products, replacing the traditional manual operation, improving production efficiency, and ensuring stable and reliable quality.

[0045] The present invention also provides an automatic forming production process, comprising the following steps:

[0046] Step 1: Start the manipulator 4 and move the transfer fixture 3 to the discharge port of the feeder 1, and open the powder cover on the powder cup 321 to feed each powder cup 321. The feeding amount can be pre-set for the feeder according to different molded parts.

[0047] Step 2: After the addition is completed, the powder cover on the powder cup 321 is closed, and the manipulator 4 rotates and moves with the transfer fixture 3 to the molding mold 22 to wait. In order to clamp the molded part, the transfer fixture 3 can be rotated to the upper side in advance;

[0048] Step 3: When the molding mold 22 is opened, the blowing nozzle 34 is started to clean the debris in the molding mold 22 cavity. The number of the blowing nozzles 34 can be set according to the number of cavities, which is convenient for quick inventory. At the same time, the manipulator 4 brings the transfer fixture 3 into the molding mold 22, so that the clamping assembly 33 clamps the molded part from the molding mold 22;

[0049] Step 4: The manipulator 4 takes the transfer fixture 3 out of the molding mold 22, and during the process of clamping the molded part and exiting the molding mold, debris may fall into the molding cavity, so the blowing nozzle 34 is started again to perform a secondary cleaning of the debris in the molding mold 22 cavity, effectively ensuring that the molding cavity of the molding mold is cleaned;

[0050] Step 5, the manipulator 4 brings the transfer fixture 3 into the molding mold 22 again, so that the cup mouth of the powder cup 321 faces downward and is aligned with the corresponding molding cavity, and the powder cover on the powder cup 321 is opened at the same time, and the powder is poured into each molding cavity at the same time. The heating time and temperature of the powder in each molding cavity are the same to ensure the quality stability of the molded part;

[0051] Step 6: The manipulator 4 takes the transfer fixture 3 out of the molding die 22 again, and the molding die 22 is closed to perform compression molding on the powder;

[0052] Step 7, the transfer fixture clamps the molded part to perform burr treatment;

[0053] Step eight, the processed molded parts are moved to the unloading area, and the manipulator 4 brings the transfer fixture 3 back to the discharge port of the feeder 1 again, and the feeder 1 re-adds the powder cup 321 of the transfer fixture 3 to carry out the next working cycle.

[0054] The present invention sets a transfer mechanism between the feeder 1 and the compression molding machine 2, wherein the transfer fixture 3 can move the powder on the feeder 1 to the movable molding mold 22 under the action of the manipulator 4, pour the powder in the transfer fixture 3 into the molding mold 22 for compression molding, and take the molded part out of the molding mold 22 through the clamping component 33, and at the same time process the burrs of the molded part, so as to realize the automatic production of amino molding plastic products, replace the traditional manual operation, improve production efficiency, and have stable and reliable quality.

[0055] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic molding system, comprising a feeder for placing powder and a compression molding machine for compression molding the powder, the compression molding machine comprising a molding frame and a molding mold, characterized in that: It also includes a transfer mechanism for transferring powder from the feeder to the molding die for compression molding; The transfer mechanism includes a transfer fixture for placing powder and a manipulator, and the manipulator can drive the transfer fixture to move between the feeder and the compression molding machine; The transfer fixture comprises a transfer frame, and a powder cup assembly for adding materials is arranged on one side of the transfer frame; The powder cup assembly includes one or more powder cups, a material cover for sealing the powder cup, and an opening and closing drive for driving the material cover to rotate; when the opening and closing drive drives the material cover to rotate, the material cover will be staggered with the cup mouth of the powder cup, thereby opening the powder cup; When the transfer fixture moves to the feeder and is aligned with the discharge port for feeding, the manipulator will drive the transfer fixture to move to the molding die, and pour the powder in the transfer fixture into the molding die for compression molding; The transfer rack is provided with a blowing nozzle, one end of which is connected to the air pipe, and the other end of which extends forward. When the transfer rack is close to the forming mold, the blowing nozzle blows away the debris in the forming mold cavity; The material cover includes a material cover body and one or more covers arranged on the material cover body. The material cover body is arranged on the output shaft of the opening and closing drive, and the cover is placed on the cup mouth of the corresponding powder cup. When the material cover is rotated, the cover and the cup mouth of the powder cup are staggered, thereby opening the powder cup.

2. An automatic forming system according to claim 1, characterized in that: A limit block for limiting the rotation angle of the material cover is arranged on the transfer frame. When the opening and closing driver drives the material cover to rotate and seal or open the powder cup, the material cover will collide with the limit block.

3. The automatic forming system according to claim 1, characterized in that: The transfer rack is provided with a mounting hole for mounting the powder cup, wherein the powder cup is fixed on the mounting hole by means of screws.

4. The automatic forming system according to claim 1, characterized in that: A clamping assembly for clamping the compression molded part is arranged on the other side of the transfer frame relative to the powder cup assembly. The clamping assembly includes a left clamping arm, a right clamping arm and a clamping driver. The clamping driver can drive the left clamping arm and the right clamping arm to move closer or open relative to each other.

5. An automatic forming system according to claim 4, characterized in that: The clamping surfaces of the left clamping arm and the right clamping arm are both provided with rubber blocks.

6. The automatic forming system according to claim 1, characterized in that: The molding frame is provided with a scraper. When the clamping assembly takes out the molded part from the molding die, the clamping assembly will move close to the scraper and scrape off the burrs of the molded part.

7. A production process using the automatic forming system according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Start the manipulator and move the transfer fixture to the discharge port of the feeder, open the powder cover on the powder cup, and add powder to each powder cup respectively; Step 2: After the feeding is completed, close the powder cover on the powder cup, and the manipulator rotates and moves with the transfer fixture to the forming mold to wait; Step 3, when the molding mold is opened, the air blowing nozzle is started to clean the debris in the molding mold cavity, and at the same time, the manipulator brings the transfer fixture into the molding mold so that the clamping assembly clamps the molded part from the molding mold; Step 4, the manipulator takes the transfer fixture out of the molding mold, and the blowing nozzle is started again to perform secondary cleaning of debris in the molding mold cavity; Step 5: The manipulator brings the transfer fixture into the molding die again, so that the mouth of the powder cup faces downward and is aligned with the corresponding molding cavity, and the powder cover on the powder cup is opened at the same time, and the powder is poured into each molding cavity at the same time; Step 6: The manipulator takes the transfer fixture out of the molding die again, and the molding die is closed to perform compression molding on the powder; Step 7, the transfer fixture clamps the molded part to perform burr treatment; Step 8: Move the processed molded parts to the unloading area, and the manipulator brings the transfer fixture back to the discharge port of the feeder. The feeder refills the powder cup of the transfer fixture to carry out the next working cycle.

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