CN220373839U - Novel electric melt adhesive injection table device - Google Patents

Abstract

The utility model discloses a novel electric melt adhesive injection table device which comprises a material tube, a screw driving assembly, an injection table moving assembly and an injection action device, wherein a screw is arranged in the material tube, the screw driving assembly comprises a servo motor and a transmission assembly, the servo motor is used for transmitting the screw to rotate, the injection table moving assembly comprises an injection table moving plate, an injection table front plate and an injection table base, a sliding through groove is formed in the middle of the injection table front plate, the injection table moving plate is slidably arranged in the sliding through groove, a linear guide rail is arranged on the injection table base, and the injection table front plate and the injection table moving plate are slidably arranged above the linear guide rail. The injection action device is connected to the injection table front plate and drives the injection table movable plate to move in the sliding through groove and push the screw rod to do extrusion action. The utility model can realize high-precision displacement of the movable injection assembly and has the advantages of simple structure and easy production and installation.

Description

A new type of electric melt glue injection device

Technical field

The utility model relates to the field of injection molding machines, and in particular to a new type of electric melt injection station device.

Background technique

Injection molding machine is the main molding equipment for making thermoplastic or thermosetting plastic into plastic products of various shapes using plastic molds. It is widely used in industrial production, especially in the production of plastic products. Electric injection molding machines generally include: Injection materials Pipe assembly, transfer assembly and injection power unit. The injection pipe assembly generally includes a barrel and an internal screw for extruding molten thermoplastics. At the same time, the transfer assembly needs to be able to allow the injection pipe assembly to move forward and backward. Move it to communicate with or away from the cavity of the injection molding template.

In order to meet the precise movement of the transfer assembly before and after, the existing technology generally uses an injection motor to cooperate with the linear guide rail. For example, the existing patent CN216466009U uses a drive motor and a screw rod for controlling the movement of the material tube assembly to cooperate with the front and rear The injection guide frame is used to realize the forward and backward movement of the injection assembly, but it still has certain disadvantages: ① The structure is complex, requiring two sets of front and rear injection guide frames and two linear rails. Such a complex structure is easy to install and manufacture. Errors occur, affecting the accuracy of the transfer. ② The screw rod is prone to wear and tear after long-term use. At the same time, movement and adjustment through the thread on the screw rod require a very long screw rod and control the accuracy of the thread on such a long screw rod, which is not conducive to manufacturing and long-term use. ③ It is large in size and has multiple slide rails and transmission mechanisms, which makes the overall volume relatively large, which in turn imposes certain requirements on the area and flatness of the installation table, which is not conducive to the miniaturization of the instrument.

In order to solve the above technical problems, this plan designs a new type of electric melt injection platform device.

Utility model content

In order to solve the above technical problems, embodiments of the present invention provide a new type of electric melt injection platform device, which includes: a material tube barrel, a screw driving assembly, an injection platform moving assembly and an injection action device;

There is a screw inside the barrel, and the screw driving assembly includes a servo motor and a transmission assembly. The servo motor is connected to the transmission assembly and drives the screw to rotate in the barrel.

The moving assembly of the shooting platform includes: a moving plate of the shooting platform, a front plate of the shooting platform and a base of the shooting platform. The moving plate of the shooting platform is connected with the material tube barrel and the screw driving assembly. There is a sliding slot in the middle of the front plate of the shooting platform. , the ejection platform base is provided with a linear guide rail, and the ejection platform front plate and the ejection platform moving plate are slidably located above the linear guide rail.

The injection action device includes: a glue injection oil cylinder and a piston rod connected to the inside of the glue injection oil cylinder; the glue injection oil cylinder is connected to the front plate of the injection platform; the piston rod is telescopic on the injection platform. The sliding channel further drives the ejection platform moving plate to linearly move the ejection platform moving plate in the sliding channel, and in the process, the screw is pushed to perform an extrusion action inside the material tube barrel.

Wherein, the transmission assembly includes: a driving wheel that is drivingly connected to the output shaft of the servo motor and a driven wheel that is connected to the tail of the screw. The driving wheel drives the driven wheel through the synchronous belt, and then is drivingly connected to the screw. .

Wherein, a piston rod transition plate is provided at the rear end of the moving plate of the ejection platform, and the piston rod abuts against the piston rod transition plate to drive the screw rod.

Wherein, a material storage cavity is provided at the front end of the material tube, and a nozzle is connected to the front end of the material storage cavity.

Wherein, the bottom of the movable plate of the ejection platform and the front plate of the ejection platform are provided with moving slide blocks, and the moving plate and the front plate of the ejection platform slide along the linear guide rail through the moving slide blocks.

Wherein, the front end of the front plate of the ejection platform is also provided with an ejection transfer device.

Wherein, the rear end of the material tube barrel is provided with a material inlet.

The implementation of this utility model has the following beneficial effects: ① Low cost and high precision. This solution only uses one set of linear guide rails, which avoids errors in the installation and manufacturing of the injection molding machine caused by multiple sets of guide rails and positioning structures, and improves the efficiency of the equipment. Accuracy. ② There is no interference between the injection molding and melting mechanisms. Compared with the traditional solution, this solution adopts a solution in which the oil cylinder and the motor cooperate, which are more independent of each other, do not require complex transmission shaft design, and reduce the difficulty of manufacturing. ③ Small and lightweight. The structure of the motor and cylinder of this solution is simple and clear, and the process does not require additional transmission structures, which reduces the overall weight. At the same time, the moving components of the launch platform are concentrated on the central axis, so it can help reduce system inertia and rationalize layout, thus making horizontal activities more precise.

Description of the drawings

Figure 1 is a three-dimensional schematic diagram of the utility model;

Figure 2 is a schematic cross-sectional view of the utility model.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

Example 1

As shown in Figures 1 and 2, a new type of electric melt injection platform device includes: material tube barrel 1, screw driving assembly 2, injection platform moving assembly 3 and injection action device 4.

There is a screw 11 inside the material tube barrel 1. The screw driving assembly 2 includes: a servo motor 21 and a transmission component 22. The servo motor 21 is drivingly connected to the transmission component 22 to drive the screw 11 in the material tube barrel 1. Make a rotational movement inside.

Specifically, the transmission assembly 22 includes a driving wheel 221 that is drivingly connected to the output shaft of the servo motor 21 and a driven wheel 222 connected to the tail of the screw 11 . The driving wheel 221 drives the driven wheel through a synchronous belt 223 222, thereby allowing the servo motor 21 to drive the screw 11 and make it rotate.

Specifically, the front end of the material tube barrel 1 is provided with a material storage cavity 12, and the front end of the material storage cavity 12 is connected with a nozzle 13.

Specifically, a material inlet 14 is provided at the rear end of the material tube barrel 1 .

The screw 11 can continuously transport the material toward the nozzle 13 when rotating. At the same time, the material is heated by the heating ring conventionally provided on the outer wall of the material tube 1 and the extrusion and shearing generated when the screw 11 rotates. It melts into a fluid due to the heat of force.

As shown in Figure 1, the ejection platform moving assembly 3 includes: ejection platform moving plate 31, ejection platform front plate 32 and ejection platform base 33. The ejection platform moving plate 31 is connected to the material tube barrel 1 and the screw driving assembly. 2. The middle part 32 of the front plate of the ejection platform has a sliding groove 321, and the linear guide rail 331 is provided on the base of the ejection platform 33. The front plate 32 of the ejection platform and the moving plate 31 of the ejection platform are slidably provided on the linear guide rails. above.

The injection action device is connected to the front plate 32 of the injection platform and drives the moving plate 31 of the injection platform so that it can move in the sliding channel 321, and in the process, the screw 11 is pushed inside the material tube barrel 1. Extrude action.

As shown in Figure 2, the injection action device 4 includes: an injection oil cylinder 41 and a piston rod 42. The injection oil cylinder 41 is connected to the front plate 32 of the injection platform, and the piston rod 42 is provided on the injection platform. The injection oil cylinder 41 is inside and can be telescopic in the sliding channel 321, thereby driving the injection platform moving plate 31 to make the injection platform moving plate 31 move linearly in the sliding channel 321, and in the sliding channel 321. During the process, the screw 11 is pushed to perform extrusion action inside the material tube 1 .

A piston rod transition plate 43 is provided at the rear end of the ejection platform moving plate 31 , and the piston rod 42 is connected to the piston rod transition plate 43 to drive the screw rod 11 .

It should be noted that there is a sliding channel 321 in the middle of the front plate 32 of the injection platform, and the moving plate of the injection platform is slidably disposed in the sliding channel 321. When the piston rod 42 of the injection action assembly 4 moves, The moving plate 31 of the shooting platform can be pushed to move linearly on the sliding channel 321, thereby adjusting the relative positional relationship between the moving plate 31 of the shooting platform and the front plate 32 of the shooting platform.

Specifically, the moving slider 34 is provided at the bottom of the moving plate 31 and the front plate 32 of the shooting platform. The moving plate 31 and the front plate 32 of the shooting platform are moved along the linear guide rail through the moving slider 34. 331 slide.

Specifically, the front section of the injection platform front plate 32 is also provided with an injection transfer device 323. The injection transfer device can push the injection platform front plate and the injection platform middle plate to move on the linear guide rail, so that when injection molding is not performed, The material tube barrel moves backward, and when the injection molding action is to be performed, it is driven by the injection moving device, so that the nozzle 13 of the material tube barrel 1 penetrates into the cavity of the middle plate of the mold.

working principle:

Material melting link: When solid plastic particles are added into the material tube 1 through the material inlet 14, the servo motor 21 works and drives the screw 11 in sequence through the driving wheel 221, the synchronous belt 223, and the driven wheel 222. , thereby causing the material to continuously move toward the direction of the nozzle 13. During the process, the material is heated and melted into a fluid due to the heating of the heating ring and the thermal action of the shear force generated when the screw 11 rotates.

Melt metering link: As the screw 11 rotates, the fluid plastic continues to gather inside the storage cavity 12. When the storage cavity 12 is filled, the excess fluid plastic will generate thrust and act on the front end of the screw. The screw 11 has a tendency to retreat. At this time, the moving plate 31 of the injection platform also receives thrust, and then the piston rod 42 abutting the rear end of the screw 11 receives thrust, causing the hydraulic oil inside the injection cylinder 41 to flow back until the piston After the retreat distance of the rod 42 reaches the distance specified by the control system, the melt metering action is completely completed.

It should be particularly pointed out that the push resistance, or back pressure, generated by the retreat of the piston rod 42 can also resist the screw 11 and help the plastic fluid at the front end of the screw 11 to further mix and discharge from the storage cavity 12 Air may be present inside.

Material ejection link: After the measurement is completed, a lot of fluid plastic has gathered in the storage cavity 12 at the front end of the screw 11. At this time, the back cover of the injection cylinder begins to add hydraulic oil and pushes the piston rod 42 forward to drive the injection platform moving plate. 31 and the screw 11 are pushed forward, and then the fluid plastic inside the storage cavity 12 is ejected from the injection nozzle 13 into the mold, and an injection step is completed.

Of course, the above embodiments are only for illustrating the technical concepts and features of the present invention. Their purpose is to allow those familiar with the technology to understand the contents of the present invention and implement it accordingly, but they cannot limit the scope of protection of the present invention. All modifications made based on the spirit of the main technical solution of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. A new type of electric melt injection platform device, which is characterized in that it includes: a material tube barrel (1), a screw drive assembly (2), an injection platform moving assembly (3), and an injection action device (4); The material tube barrel (1) has a screw (11) inside, and the screw driving assembly (2) includes: a servo motor (21) and a transmission assembly (22). The servo motor (21) is drivingly connected to the transmission assembly. (22) Then drive the screw (11) to rotate in the barrel (1); The ejection platform moving assembly (3) includes: ejection platform moving plate (31), ejection platform front plate (32) and ejection platform base (33). The ejection platform moving plate (31) is connected with a material tube (1) And the screw drive assembly (2), the front plate of the ejection platform (32) has a sliding slot (321) in the middle, the linear guide rail (331) is provided on the base of the ejection platform (33), the front plate of the ejection platform (32) and the ejection platform moving plate (31) are slidably located above the linear guide rail (331); The injection action device (4) includes: an injection oil cylinder (41) and a piston rod (42). The injection oil cylinder (41) is connected to the front plate (32) of the injection platform; the piston rod (42) is located inside the injection oil cylinder (41) and can be telescopic in the sliding channel (321), thereby driving the injection platform moving plate (31) to move in the sliding channel (321). ), and in the process, the screw (11) is pushed to perform an extrusion action inside the barrel (1). 2. A new type of electric melt injection platform device according to claim 1, characterized in that the transmission assembly (22) includes: a driving wheel (221) drivingly connected to the output shaft of the servo motor (21) And a driven wheel (222) connected to the tail of the screw (11). The driving wheel (221) drives the driven wheel (222) through a synchronous belt (223), and then drives the screw (11). 3. A new type of electric melt injection platform device according to claim 1, characterized in that a piston rod transition plate (43) is provided at the rear end of the moving plate (31) of the injection platform, and the piston rod (42 ) abuts against the piston rod transition plate (43) to drive the screw (11). 4. A new type of electric melt injection platform device according to claim 1, characterized in that a material storage cavity (12) is provided at the front end of the material tube barrel (1), and the material storage cavity (12) ) The front end is connected with a spout (13). 5. A new type of electric melt injection platform device according to claim 1, characterized in that the moving slider (34) is provided at the bottom of the moving plate (31) of the injection platform and the front plate (32) of the injection platform. , the ejection platform moving plate (31) and the ejection platform front plate (32) slide along the linear guide rail (331) through the moving slider (34). 6. A new type of electric melt injection platform device according to claim 1, characterized in that an injection transfer device (323) is provided at the front end of the front plate (32) of the injection platform. 7. A new type of electric melt injection platform device according to claim 1, characterized in that a material inlet (14) is provided at the rear end of the material tube barrel (1).