Parison clamping device for a three-dimensional blow molding machine

Abstract

This application discloses a blank clamping device for a three-dimensional blow molding machine, comprising: a robotic arm mechanism, a clamping mechanism, and a mounting plate connected between the robotic arm mechanism and the clamping mechanism. The robotic arm mechanism includes a robotic arm base and a robotic arm body. The mounting plate has independent water distribution channels, water return channels, air distribution channels, and exhaust channels. The clamping mechanism includes a clamping cylinder mounted on the mounting plate and a pair of clamping arms driven on the clamping cylinder. The clamping cylinder drives the pair of clamping arms to move closer and further apart. The clamping cylinder is connected to the air distribution channel and the exhaust channel. Each clamping arm has a cooling flow path for supplying cooling water, and each cooling flow path connects to the water distribution channel and the water return channel. This application simplifies the structure of the device, significantly reduces production costs and assembly difficulty, adds a cooling function to the clamping mechanism to ensure the integrity of the transferred blank, and integrates the water and air channels on the mounting plate to improve the aesthetics and simplicity of the device.

Description

Technical Field

[0001] This application relates to the field of three-dimensional blow molding machine products technology, and in particular to a blank clamping device for a three-dimensional blow molding machine. Background Technology

[0002] Three-dimensional blow molding machines are mainly suitable for producing hollow blow molded products with complex three-dimensional spatial structures. Compared with general blow molding machines, the difficulty lies in how to accurately and stably place the straight-extruded hot preform into the cavity of the curved mold. This process usually uses a robotic arm preform transfer technology. However, the original robotic arm moving end usually does not have a clamping effect, and when the preform temperature is high, it will stick and break with the clamping arm during the clamping process. In addition, the mechanism should not be too complex, so as not to affect the movement process of the robotic arm. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a blank clamping device for a three-dimensional blow molding machine.

[0004] To achieve the above objectives, this application adopts the following technical solution: a blank clamping device for a three-dimensional blow molding machine, comprising: A robotic arm mechanism, comprising a robotic arm base and a robotic arm body mounted on the robotic arm base; A mounting plate is fixedly installed at the end of the robotic arm body. The mounting plate has independent water distribution channels, water return channels, air distribution channels, and exhaust channels. The water distribution channels and water return channels are connected to an external water source, and the air distribution channels and exhaust channels are connected to an external air source. The clamping mechanism includes a clamping cylinder mounted on the mounting plate and a pair of clamping arms driven on the clamping cylinder. The clamping cylinder is used to drive the pair of clamping arms to move closer to each other and further away from each other. The clamping cylinder is connected to the air distribution passage and the exhaust passage, and is also connected to the external air source through the air distribution passage and the exhaust passage. Each clamping arm has a cooling flow path for supplying cooling water. Each cooling flow path is connected to the water distribution passage and the water return passage, and is also connected to the external water source through the water distribution passage and the water return passage.

[0005] In the above technical solution, it is further preferred that each of the clamping arms has a toothed surface close to the other clamping arm and a mounting surface away from the other clamping arm, each of the toothed surfaces has a plurality of protruding teeth, and the toothed surfaces of each clamping arm cooperate with the toothed surfaces of the other clamping arm.

[0006] In the above technical solution, it is further preferred that each of the cooling flow paths forms a cooling water inlet for cooling water to enter and a cooling water outlet for cooling water to exit on the corresponding clamping arm, and the cooling water inlet and the cooling water outlet are arranged on the mounting surface of the corresponding clamping arm.

[0007] In the above technical solution, more preferably, the water distribution channel has an inlet, a first inlet, and a second inlet formed on the mounting plate. The inlet is connected to the first inlet and the second inlet respectively through the water distribution channel. The inlet of the water distribution channel is connected to an external water source. The first inlet is connected to the cooling water inlet of one of the clamping arms through a hose, and the second inlet is connected to the cooling water inlet of the other clamping arm through a hose.

[0008] In the above technical solution, more preferably, the return water passage has an outlet, a first return water outlet, and a second return water outlet formed on the mounting plate. The outlet is connected to the first return water outlet and the second return water outlet respectively through the return water passage. The outlet is connected to an external water source. The first return water outlet is connected to the cooling water outlet of one of the clamping arms through a hose, and the second return water outlet is connected to the cooling water outlet of the other clamping arm through a hose.

[0009] In the above technical solution, it is further preferred that the clamping cylinder has an independent cylinder inlet and a cylinder outlet.

[0010] In the above technical solution, a further preferred embodiment is that the gas distribution passage forms a main air inlet that communicates with an external air source and an air delivery port that communicates with the main air inlet through the gas distribution passage on the mounting plate, and the air delivery port is connected to the cylinder air inlet of the clamping cylinder through a flexible hose.

[0011] In the above technical solution, a further preferred embodiment is that the exhaust passage forms a main exhaust port communicating with the external air source and an exhaust port communicating with the main exhaust port through the exhaust passage on the mounting plate, and the exhaust port is connected to the cylinder exhaust port of the clamping cylinder through a hose.

[0012] Compared with the prior art, this application achieves the following beneficial effects: The clamping cylinder and the robotic arm body of this application work together to clamp and precisely transfer the blank, simplifying the structure of the device, reducing the number of parts, and thus significantly reducing production costs and assembly difficulty, while also facilitating later inspection and maintenance; a cooling function is added to the clamping mechanism to prevent the clamping arm from sticking to the blank during the transfer process, ensuring the integrity of the transferred blank; the design of the mounting plate integrates water and air channels, ensuring that the robotic arm is not disturbed during operation, while also improving the overall aesthetics and simplicity of the equipment. Attached Figure Description

[0013] Figure 1 This application provides a three-dimensional structural schematic diagram of a blank clamping device for a three-dimensional blow molding machine. Figure 2 for Figure 1 A three-dimensional structural diagram of the clamping mechanism mounted on the mounting plate; Figure 3 for Figure 2 The main view of the mounting plate.

[0014] The components are as follows: 100, blank clamping device; 10, robotic arm mechanism; 1, robotic arm base; 2, robotic arm body; 20, mounting plate; 3, water distribution passage; 31, water inlet; 32, first water inlet; 33, second water inlet; 4, return water passage; 41, water outlet; 42, first return water inlet; 43, second return water inlet; 5, air distribution passage; 51, main air inlet; 52, air outlet; 6, exhaust passage; 61, main air outlet; 62, exhaust outlet; 30, clamping mechanism; 7, clamping cylinder; 71, cylinder air inlet; 72, cylinder air outlet; 8, left clamping arm; 81, left cooling water inlet; 82, left cooling water outlet; 9, right clamping arm; 91, right cooling water inlet; 92, right cooling water outlet. Detailed Implementation

[0015] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0016] This application provides a blank clamping device for a three-dimensional blow molding machine, used to clamp blanks produced by the blow molding machine. For example... Figure 1 As shown, the blank clamping device 100 includes: a robotic arm mechanism 10, a mounting plate 20 mounted on the robotic arm mechanism 10, and a clamping mechanism 30 mounted on the mounting plate 20. The clamping mechanism 30 can clamp the blank produced by the three-dimensional blow molding machine. The mounting plate 20 is connected between the robotic arm mechanism 10 and the clamping mechanism 30. The robotic arm mechanism 10 can move the clamping mechanism 30 and the clamped blank in multiple directions, so that the blank can be accurately placed into the mold.

[0017] The robotic arm mechanism 10 includes a robotic arm base 1 and a robotic arm body 2 mounted on the robotic arm base 1. The robotic arm base 1 is mounted on a three-dimensional blow molding machine. The robotic arm body 2 on the robotic arm base 1 can move the mounting plate 20 and the clamping mechanism 30 mounted on it in multiple directions, and is the actuator for moving the blank.

[0018] like Figure 1-3 As shown, the mounting plate 20 is fixedly installed at the end of the robotic arm body 2 by mechanical fasteners. The mounting plate 20 has independent water distribution passages 3, water return passages 4, air distribution passages 5, and exhaust passages 6. Water distribution passages 3 and 4 are connected to an external water source, while air distribution passages 5 and 6 are connected to an external air source. The independent passages within the mounting plate 20 serve to distribute water and air, and the mounting plate 20 integrates the water and air paths, making the overall structure simpler and neater.

[0019] The clamping mechanism 30 includes a clamping cylinder 7 mounted on the mounting plate 20 and a left clamping arm 8 and a right clamping arm 9 mounted opposite to each other on the clamping cylinder 7. The clamping cylinder 7 is used to drive the left clamping arm 8 and the right clamping arm 9 to move closer to each other and further away from each other. The left clamping arm 8 and the right clamping arm 9 move closer to each other to clamp the blank, and the left clamping arm 8 and the right clamping arm 9 move further away from each other to release the blank.

[0020] Each clamping arm has a toothed surface close to another clamping arm and a mounting surface away from another clamping arm. Each toothed surface has several protruding teeth, and the toothed surfaces of each clamping arm cooperate with each other. When the left clamping arm 8 and the right clamping arm 9 clamp the blank, the toothed surfaces on each clamping arm can ensure the stability of the blank during the clamping process and ensure that the blank will not fall out between the left clamping arm 8 and the right clamping arm 9.

[0021] like Figure 2 , 3 As shown, the clamping cylinder 7 is connected to both the air distribution passage 5 and the exhaust passage 6, and has a cylinder inlet 71 connected to the air distribution passage 5 and a cylinder outlet 72 connected to the exhaust passage 6. The cylinder inlet 71 and the cylinder outlet 72 are not connected to each other within the clamping cylinder 7.

[0022] The air distribution passage 5 forms a main air inlet 51 on the mounting plate 20, which communicates with an external air source, and an air outlet 52 that communicates with the main air inlet 51 through the air distribution passage 5. The air outlet 52 is connected to the cylinder air inlet 71 of the clamping cylinder 7 through a flexible hose. The exhaust passage 6 forms a main air outlet 61 on the mounting plate 20, which communicates with an external air source, and an exhaust port 62 that communicates with the main air outlet 61 through the exhaust passage 6. The exhaust port 62 is connected to the cylinder air outlet 72 of the clamping cylinder 7 through a flexible hose. In this embodiment, when an external air source supplies gas to the cylinder inlet 71 through the gas distribution passage 5, the cylinder outlet 72 exhausts gas to the external air source through the exhaust passage 6. At this time, the left clamping arm 8 and the right clamping arm 9 close together to achieve a clamping action. When an external air source supplies gas to the cylinder outlet 72 through the exhaust passage 6, the cylinder inlet 71 exhausts gas to the external air source through the gas distribution passage 5. At this time, the left clamping arm 8 and the right clamping arm 9 move away from each other to achieve an opening action.

[0023] The clamping cylinder 7 drives the left clamping arm 8 and the right clamping arm 9 to perform clamping and opening actions through the air intake and exhaust passages 5 and 6, thereby enabling the clamping and releasing of the blank. Combined with the multi-directional displacement of the robotic arm mechanism 10, it can clamp the blank produced by the three-dimensional blow molding machine and accurately transfer it into the mold. The operation is flexible, and the movement is convenient and precise.

[0024] In this embodiment, both the left clamping arm 8 and the right clamping arm 9 are provided with cooling flow paths for cooling water to pass through. Both cooling flow paths are connected to the water distribution path 3 and the water return path 4. The water distribution path 3 is connected between the external water source and the cooling flow path of the left clamping arm 8 and between the external water source and the cooling flow path of the right clamping arm 9, respectively. The water return path 4 is connected between the cooling flow path of the left clamping arm 8 and the external water source and between the cooling flow path of the right clamping arm 9 and the external water source, respectively. The external water source continuously supplies cooling water to the left clamping arm 8 and the right clamping arm 9 through the water distribution path 3. After circulating once in each clamping arm, the cooling water in the left clamping arm 8 and the right clamping arm 9 is transported back to the external water source through the water return path 4 so as to be transported to each clamping arm again as cooling water for cooling. The external water source, water distribution channel 3, left clamping arm 8 and right clamping arm 9, return water channel 4 and external water source are connected in sequence to form a water circulation system. This system can provide cooling water to the left clamping arm 8 and right clamping arm 9 to continuously cool each clamping arm and the clamped material, preventing the material from sticking to the left clamping arm 8 and right clamping arm 9 during the clamping process, and ensuring the integrity of the material during the transfer process.

[0025] like Figure 2As shown, the cooling flow path in the left clamping arm 8 has a left cooling water inlet 81 and a left cooling water outlet 82 formed on the mounting surface of the left clamping arm 8, and the cooling flow path in the right clamping arm 9 has a right cooling water inlet 91 and a right cooling water outlet 92 formed on the mounting surface of the right clamping arm 9.

[0026] like Figure 2 , 3 As shown, the water distribution passage 3 has an inlet 31, a first inlet 32, and a second inlet 33 formed on the mounting plate 20. The inlet 31 is connected to the first inlet 32 ​​and the second inlet 33 through the water distribution passage 3. The inlet 31 of the water distribution passage 3 is connected to an external water source so that the cooling water from the external water source can enter the water distribution passage 3 and be evenly distributed to the first inlet 32 ​​and the second inlet 33. The first inlet 32 ​​is connected to the left cooling water inlet 81 through a hose to deliver the distributed cooling water to the cooling flow path of the left clamping arm 8; the second inlet 33 is connected to the right cooling water inlet 91 through a hose to deliver the distributed cooling water to the cooling flow path of the right clamping arm 9.

[0027] The return water passage 4 has an outlet 41, a first return water inlet 42, and a second return water inlet 43 formed on the mounting plate 20. The outlet 41 is connected to the first return water inlet 42 and the second return water inlet 43 through the return water passage 4. The first return water inlet 42 is connected to the left cooling water outlet 82 through a hose to transport the cooling water in the left clamping arm 8 to the return water passage 4. The second return water inlet 43 is connected to the right cooling water outlet 92 through a hose to transport the cooling water in the right clamping arm 9 to the return water passage 4. The outlet 41 is connected to an external water source, so that the cooling water entering the return water passage 4 converges at the outlet 41 and is transported back to the external water source from the outlet 41. In this embodiment, a condenser is provided between the outlet 41 and the external water source. The cooling water output from the return water passage 4 is cooled by the condenser. The cooled water in the condenser is then transported to the external water source for storage, so that it can be used again as cooling water to be transported to each clamping arm.

[0028] The external water source distributes cooling water to the cooling flow paths of the left clamping arm 8 and the right clamping arm 9 through the water distribution channel 3 in the mounting plate 20. The cooling water circulates once in the cooling flow path of each clamping arm to cool down each clamping arm and the clamped blank. After circulating once in the cooling flow path, the cooling water in each clamping arm is transported to the condenser through the connected return water passage 4. After being cooled by the condenser, it is transported back to the external water source for storage, realizing the recycling of cooling water, effectively saving water energy, and improving the cooling efficiency of each clamping arm and the clamped blank.

[0029] The water inlet 31, water outlet 41, main air inlet 51, and main air outlet 61 are located on the same end face of the mounting plate 20 to facilitate connection to external water sources, air sources, and condensers, ensuring standardized connections to avoid affecting the operation of the robotic arm body 2 and improving the overall aesthetics and simplicity.

[0030] The working principle of this application is as follows: the water inlet 31 and the water outlet 41 are connected to an external water source, the main air inlet 51 and the main air outlet 61 are connected to an external air source, and then the hose is connected to the first water inlet 32 ​​and the left cooling water inlet 81, the second water inlet 33 and the right cooling water inlet 91, the first return water inlet 42 and the left cooling water outlet 82, the second return water inlet 43 and the right cooling water outlet 92, the air outlet 52 and the cylinder air inlet 71, and the exhaust port 62 and the cylinder air outlet. Vent 72; Cooling water enters from inlet 31, is distributed to first inlet 32 ​​and second inlet 33, and then transported to left cooling water inlet 81 and right cooling water inlet 91. After circulating once in left clamping arm 8 and right clamping arm 9, it is discharged from left cooling water outlet 82 and right cooling water outlet 92, and then reaches first return water outlet 42 and second return water outlet 43. After converging at outlet 41, it enters the condenser, is cooled again and used as cooling water. External air is supplied through the main air inlet 51 to the cylinder air inlet 71. At this time, the clamping cylinder 7 drives the left clamping arm 8 and the right clamping arm 9 to move closer to each other to clamp the blank. Then, the robotic arm body 2 works to place the clamped blank inside the mold. Then, external air is supplied through the main air outlet 61 to the cylinder air outlet 72. At this time, the clamping cylinder 7 drives the left clamping arm 8 and the right clamping arm 9 to move away from each other to release the blank. The robotic arm body 2 resets, completing one blank transfer operation.

[0031] The clamping cylinder and the robotic arm body of this application work together to clamp and precisely transfer the blank, simplifying the structure of the device, reducing the number of parts, and thus significantly reducing production costs and assembly difficulty, while also facilitating later inspection and maintenance; a cooling function is added to the clamping mechanism to prevent the clamping arm from sticking to the blank during the transfer process, ensuring the integrity of the transferred blank; the design of the mounting plate integrates water and air channels, ensuring that the robotic arm is not disturbed during operation, while also improving the overall aesthetics and simplicity of the equipment.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A parison clamping device of a three-dimensional blow molding machine, characterized by, include: A robotic arm mechanism, comprising a robotic arm base and a robotic arm body mounted on the robotic arm base; A mounting plate is fixedly installed at the end of the robotic arm body. The mounting plate has independent water distribution channels, water return channels, air distribution channels, and exhaust channels. The water distribution channels and water return channels are connected to an external water source, and the air distribution channels and exhaust channels are connected to an external air source. The clamping mechanism includes a clamping cylinder mounted on the mounting plate and a pair of clamping arms driven on the clamping cylinder. The clamping cylinder is used to drive the pair of clamping arms to move closer to each other and further away from each other. The clamping cylinder is connected to the air distribution passage and the exhaust passage, and is also connected to the external air source through the air distribution passage and the exhaust passage. Each clamping arm has a cooling flow path for supplying cooling water. Each cooling flow path is connected to the water distribution passage and the water return passage, and is also connected to the external water source through the water distribution passage and the water return passage.

2. The compact according to claim 1, characterized in that Each of the clamping arms has a toothed surface close to the other clamping arm and a mounting surface away from the other clamping arm. Each of the toothed surfaces has a plurality of protruding teeth, and the toothed surfaces of each clamping arm cooperate with the toothed surfaces of the other clamping arm.

3. The compact according to claim 2, characterized in that Each of the aforementioned cooling flow paths forms a cooling water inlet for cooling water to enter and a cooling water outlet for cooling water to exit on the corresponding clamping arm, and the cooling water inlet and the cooling water outlet are arranged on the mounting surface of the corresponding clamping arm.

4. The blank clamping device according to claim 3, characterized in that, The water distribution channel has an inlet, a first inlet, and a second inlet formed on the mounting plate. The inlet is connected to the first inlet and the second inlet respectively through the water distribution channel. The inlet of the water distribution channel is connected to an external water source. The first inlet is connected to the cooling water inlet of one of the clamping arms through a hose, and the second inlet is connected to the cooling water inlet of the other clamping arm through a hose.

5. The blank clamping device according to claim 3, characterized in that, The return water passage has an outlet, a first return water outlet, and a second return water outlet formed on the mounting plate. The outlet is connected to the first return water outlet and the second return water outlet respectively through the return water passage. The outlet is connected to an external water source. The first return water outlet is connected to the cooling water outlet of one of the clamping arms through a hose, and the second return water outlet is connected to the cooling water outlet of the other clamping arm through a hose.

6. The blank clamping device according to claim 1, characterized in that, The clamping cylinder has independent cylinder inlet and cylinder outlet ports.

7. The blank clamping device according to claim 6, characterized in that, The gas distribution passage forms a main air inlet that communicates with an external air source and an air outlet that communicates with the main air inlet through the gas distribution passage on the mounting plate. The air outlet is connected to the cylinder air inlet of the clamping cylinder through a flexible hose.

8. The blank clamping device according to claim 6, characterized in that, The exhaust passage forms a main exhaust port on the mounting plate that communicates with the external air source and an exhaust port that communicates with the main exhaust port through the exhaust passage. The exhaust port is connected to the cylinder exhaust port of the clamping cylinder through a hose.

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