Feeding screw cylinder and injection molding machine

Abstract

The utility model provides a feeding screw cylinder and an injection molding machine, and belongs to the technical field of injection molding machines. The charging screw barrel comprises a charging structure and a clamping structure, the charging structure comprises a charging barrel, a hopper and an anti-blocking assembly, the hopper is communicated with the charging barrel, the anti-blocking assembly is arranged in the hopper, the clamping structure comprises a fixing block, a sliding rod, a sliding block and a spring, the fixing block is arranged on one side of the charging barrel, and the sliding rod is arranged on the other side of the charging barrel. The sliding rod is connected with the fixing block in a sliding mode, the sliding rod is connected with the hopper in a clamped mode, the sliding block is connected with the sliding rod, the sliding block is connected with the fixing block in a sliding mode, and the sliding rod is sleeved with the spring. According to the feeding screw cylinder and the injection molding machine, the hopper can be conveniently disassembled, assembled and replaced, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the field of injection molding machines, and in particular to a feeding screw barrel and an injection molding machine. Background Art

[0002] Plastic machine, also known as injection molding machine or injection machine, is the main molding equipment for making plastic products of various shapes from thermoplastics or thermosetting plastics using plastic molding molds. Injection molding machines can be divided into vertical, horizontal and vertical-horizontal composite types according to the arrangement of the injection device and the clamping device. Its working principle is similar to that of a syringe for injection. It uses the thrust of the screw (or plunger) to inject the plasticized molten state (i.e. viscous flow state) plastic into a closed mold cavity, and obtains the product after solidification and shaping. Since the barrel needs to be heated when guiding the material, the high temperature on the barrel is easily transferred to the raw material discharge port through heat, which easily melts the raw material and accumulates it together, resulting in the inability to discharge the raw material normally, and the practicality is poor.

[0003] In this regard, the Chinese patent application number is CN202123307848.3, which discloses a feeding barrel for an injection molding machine, including a barrel, a first screw and multiple electric heating coils. The first screw is arranged inside the barrel, and the electric heating coil is arranged on the outer end of the barrel. The stirring rod and the second screw are driven to rotate by the rotating rod. When the stirring rod rotates, the raw materials inside the hopper are stirred. When the second screw rotates, the raw materials inside the hopper and entering the guide pipe can be guided to the inside of the barrel to prevent blockage. The anti-blocking mechanism effectively prevents the raw materials from piling up, so that the raw materials can be discharged normally, and it is more practical.

[0004] The above solution still has the following shortcomings during use: when in use, the hopper is fixed to the top of the barrel. When the hopper is damaged after long-term use, it needs to be replaced as a whole and is not easy to disassemble and assemble, thereby increasing the cost of use and reducing the practicality of the device. Utility Model Content

[0005] In order to make up for the above shortcomings, the present application provides a feeding screw barrel and an injection molding machine, which aim to improve the problem that the hopper is fixed on the top of the barrel. When the hopper is damaged after long-term use, it needs to be replaced as a whole and is not easy to disassemble and assemble, thereby increasing the cost of use.

[0006] In the first aspect, an embodiment of the present application provides a feeding screw barrel, comprising a feeding structure and a clamping structure, the feeding structure comprising a barrel, a hopper and an anti-blocking component, the hopper is connected to the barrel, the anti-blocking component is arranged in the hopper, the clamping structure comprises a fixed block, a sliding rod, a slider and a spring, the fixed block is provided on one side of the barrel, the sliding rod is slidably connected to the fixed block, the sliding rod is clamped to the hopper, the slider is connected to the sliding rod, the slider is slidably connected to the fixed block, and the spring is sleeved on the sliding rod.

[0007] In a specific embodiment, the anti-blocking component includes a motor, a rotating shaft, a stirring rod and a screw. The motor is installed on one side of the hopper, the rotating shaft is connected to the motor, a plurality of stirring rods are evenly connected to the outer ring of the rotating shaft, and the screw is connected to the rotating shaft.

[0008] In the above implementation process, the motor, the rotating shaft, the stirring rod and the screw are arranged to facilitate the stirring of the raw materials and facilitate the feeding to avoid blockage.

[0009] In a specific embodiment, a mounting frame is provided at one end of the stirring rod, a scraper is provided in the mounting frame, and the scraper is in contact with the inner wall of the hopper.

[0010] In the above implementation process, the installation frame and the scraper are arranged to facilitate cleaning of the inner wall of the hopper, thereby improving work efficiency.

[0011] In a specific embodiment, a first bolt is provided on one side of the installation frame, and the scraper is connected to the installation frame through the first bolt.

[0012] In the above implementation process, the first bolt is provided to facilitate disassembly, assembly and replacement of the scraper, thereby preventing the scraper from becoming thinner due to long-term cleaning and affecting the cleaning effect.

[0013] In a specific embodiment, a cover plate is provided on the top of the hopper, a second bolt is provided on one side of the cover plate, and the cover plate is connected to the hopper through the second bolt.

[0014] In the above implementation process, the provision of the cover plate and the second bolt facilitates assembly and disassembly, thereby improving the practicability of the device.

[0015] In a specific embodiment, a sealing gasket is provided on the inner wall of the barrel.

[0016] In the above implementation process, by arranging a sealing gasket on the inner wall of the barrel, sealing can be facilitated.

[0017] In a specific embodiment, a limiting rod is provided on the inner wall of the barrel, and the hopper is slidably connected to the limiting rod.

[0018] In the above implementation process, the movement of the hopper can be limited conveniently by slidingly connecting the hopper and the limiting rod, so that the hopper can be installed quickly and conveniently.

[0019] In a second aspect, the utility model further provides an injection molding machine, comprising the above-mentioned feeding screw barrel.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows: through the setting of the anti-blocking component, it is convenient to stir the raw materials, and at the same time it is convenient to load the materials to avoid blockage; the sliding block is driven to move by the sliding rod, and the spring is squeezed so that the sliding rod is released from the hopper, which facilitates the disassembly, assembly and replacement of the hopper, thereby improving the practicality of the device; through the setting of the mounting frame and the scraper, it is convenient to clean the inner wall of the hopper, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of a feeding screw barrel and an injection molding machine provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the cross-sectional structure of a feeding barrel and an injection molding machine provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of a side view of a feeding screw barrel and an injection molding machine provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the cross-sectional structure of the clamping structure provided in an embodiment of the present application.

[0026] In the figure: 10-feeding structure; 110-barrel; 120-hopper; 130-anti-blocking assembly; 131-motor; 132-rotating shaft; 133-stirring rod; 134-screw; 140-installation frame; 150-scraper; 160-cover plate; 170-sealing pad; 180-limiting rod; 20-clamping structure; 210-fixed block; 220-sliding rod; 230-sliding block; 240-spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0028] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Example

[0030] See also Figure 1 The present application provides a feeding screw barrel, including a feeding structure 10 and a clamping structure 20.

[0031] Specifically, the feeding structure 10 facilitates the stirring of the raw materials and facilitates the loading of the materials to avoid blockage, and the clamping structure 20 facilitates the disassembly, assembly and replacement of the hopper 120 .

[0032] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The feeding structure 10 includes a barrel 110 , a hopper 120 and an anti-blocking component 130 . The hopper 120 is communicated with the barrel 110 , and the anti-blocking component 130 is disposed in the hopper 120 .

[0033] In the specific setting, the anti-blocking component 130 includes a motor 131, a rotating shaft 132, a stirring rod 133 and a screw 134. The motor 131 is installed on one side of the hopper 120, the rotating shaft 132 is connected to the motor 131, and a plurality of stirring rods 133 are evenly connected to the outer circle of the rotating shaft 132. The screw 134 is connected to the rotating shaft 132. The setting of the motor 131, the rotating shaft 132, the stirring rod 133 and the screw 134 facilitates the stirring of the raw materials and facilitates the loading to avoid blockage.

[0034] In the specific setting, a mounting frame 140 is provided at one end of the stirring rod 133, and a scraper 150 is provided in the mounting frame 140. The scraper 150 is in contact with the inner wall of the hopper 120. The setting of the mounting frame 140 and the scraper 150 facilitates the cleaning of the inner wall of the hopper 120 and improves the work efficiency.

[0035] In the specific setting, a first bolt is provided on one side of the mounting frame 140, and the scraper 150 is connected to the mounting frame 140 through the first bolt. The setting of the first bolt facilitates the disassembly, assembly and replacement of the scraper 150, thereby preventing the scraper 150 from becoming thinner due to long-term cleaning and affecting the cleaning effect.

[0036] In the specific setting, a cover plate 160 is provided on the top of the hopper 120, and a second bolt is provided on one side of the cover plate 160. The cover plate 160 is connected to the hopper 120 through the second bolt. The setting of the cover plate 160 and the second bolt facilitates disassembly and assembly, improves the practicality of the device, and a feed pipe is connected to one side of the cover plate 160.

[0037] In a specific configuration, a sealing gasket 170 is disposed on the inner wall of the barrel 110 , wherein the sealing gasket 170 is disposed on the inner wall of the barrel 110 , thereby facilitating sealing.

[0038] In the specific setting, a limiting rod 180 is provided on the inner wall of the barrel 110, and the hopper 120 is slidably connected to the limiting rod 180. The sliding connection between the hopper 120 and the limiting rod 180 can facilitate the movement of the hopper 120 and facilitate the quick installation of the hopper 120.

[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The clamping structure 20 includes a fixed block 210, a sliding rod 220, a slider 230 and a spring 240. The fixed block 210 is provided on one side of the barrel 110. The sliding rod 220 is slidably connected to the fixed block 210. The sliding rod 220 is clamped to the hopper 120. The slider 230 is connected to the sliding rod 220. The slider 230 is slidably connected to the fixed block 210. The spring 240 is sleeved on the sliding rod 220.

[0040] The utility model further provides an injection molding machine, comprising the feeding screw barrel.

[0041] The working principle of the feeding screw and the injection molding machine is as follows: when using the feeding screw and the injection molding machine, the slide bar 220 drives the slider 230 to move, and squeezes the spring 240, so that the slide bar 220 is released from the clamping connection with the hopper 120, which is convenient for disassembly, assembly and replacement of the hopper 120, and improves the practicality of the device. The motor 131 drives the rotating shaft 132, the stirring rod 133 and the screw 134 to rotate, which is convenient for stirring the raw materials and facilitating feeding to avoid blockage. At the same time, the stirring rod 133 drives the mounting frame 140 and the scraper 150 to rotate, which is convenient for cleaning the inner wall of the hopper 120 and improves work efficiency.

[0042] It should be noted that the specific model and specifications of the motor 131 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0043] The power supply and principle of the motor 131 are clear to those skilled in the art and will not be described in detail here.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A feeding screw barrel, characterized in that: include A feeding structure (10), the feeding structure (10) comprising a barrel (110), a hopper (120) and an anti-blocking component (130), the hopper (120) being in communication with the barrel (110), and the anti-blocking component (130) being arranged in the hopper (120); A clamping structure (20), the clamping structure (20) comprises a fixed block (210), a sliding rod (220), a slider (230) and a spring (240); the fixed block (210) is arranged on one side of the barrel (110); the sliding rod (220) is slidably connected to the fixed block (210); the sliding rod (220) is clamped to the hopper (120); the slider (230) is connected to the sliding rod (220); the slider (230) is slidably connected to the fixed block (210); and the spring (240) is sleeved on the sliding rod (220).

2. A feeding screw barrel according to claim 1, characterized in that: The anti-blocking component (130) comprises a motor (131), a rotating shaft (132), a stirring rod (133) and a screw (134); the motor (131) is installed on one side of the hopper (120); the rotating shaft (132) is connected to the motor (131); a plurality of stirring rods (133) are evenly connected to the outer ring of the rotating shaft (132); and the screw (134) is connected to the rotating shaft (132).

3. A feeding screw barrel according to claim 2, characterized in that: A mounting frame (140) is provided at one end of the stirring rod (133), a scraper (150) is provided inside the mounting frame (140), and the scraper (150) is in contact with the inner wall of the hopper (120).

4. A feeding screw barrel according to claim 3, characterized in that: A first bolt is provided on one side of the installation frame (140), and the scraper (150) is connected to the installation frame (140) via the first bolt.

5. A feeding screw barrel according to claim 1, characterized in that: A cover plate (160) is arranged on the top of the hopper (120), a second bolt is arranged on one side of the cover plate (160), and the cover plate (160) is connected to the hopper (120) via the second bolt.

6. A feeding screw barrel according to claim 1, characterized in that: A sealing gasket (170) is provided on the inner wall of the barrel (110).

7. A feeding screw barrel according to claim 1, characterized in that: A limiting rod (180) is provided on the inner wall of the barrel (110), and the hopper (120) is slidably connected to the limiting rod (180).

8. Injection molding machine, characterized in that, include The feeding screw according to any one of claims 1 to 7.

Images