Material pipe mounting structure of large injection molding machine

Abstract

The utility model discloses a material pipe mounting structure of a large-scale injection molding machine, which relates to the technical field of injection molding equipment and comprises an injection table bracket, a hydraulic motor is connected to the end part of the injection table bracket, a guide rail and a sliding block are arranged on the injection table bracket, a glue injection head plate casting is arranged on the injection table bracket, and a material barrel fixing ring is arranged on the injection table bracket. And a charging barrel body is clamped in the charging barrel fixing ring. According to the utility model, the charging barrel is positioned by the charging barrel positioning ring, and the charging barrel positioning ring is a half-moon ring; on-site installation is facilitated, and a circle of screws on the fixed outer ring of the charging barrel are fixed on the injection head plate casting; field mounting and dismounting are facilitated; and the inner side presses the inner ring of the charging barrel for positioning, so that the force of the charging barrel is transmitted to the positioning ring, the stress is uniform, the deformation caused by non-uniform stress is reduced, in addition, the stress area is increased, and the deformation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to a material pipe installation structure of a large injection molding machine. Background Art

[0002] Injection molding machine, full name of "plastic injection molding machine", is a plastic processing equipment with repetitive cycle action. It can heat and melt (thermoplastic or thermosetting) plastic particles or powders and then inject them into a specific mold through screw extrusion to make plastic products of various shapes. The technical update of injection molding machine has continuously improved the repetition accuracy, product process and cycle efficiency, making injection molding machine a common processing equipment in the plastic processing and manufacturing industry.

[0003] The commonly used method for installing the barrel assembly of a large injection molding machine is to lock it with a large nut. The commonly used method for installing the barrel assembly of an injection molding machine on the market is to have a boss at the front end of the barrel, a positioning pin at the front end of the barrel boss, and a large barrel nut at the rear end. This structure has a large nut locking torque and requires a large auxiliary fixture.

[0004] The shortcomings of the above-mentioned existing technical solutions are: the above-mentioned solution requires a very large torque when locking the large nut, and usually requires hydraulic tools to assist in installation. It is inconvenient for customers to disassemble the material pipe for maintenance on site, and the material pipe group of the injection molding machine is prone to wear during maintenance, especially when glass fiber and corrosive plastics are added, the material pipe group needs to be regularly maintained and replaced, which easily causes technical problems such as inconvenient maintenance. Utility Model Content

[0005] The utility model aims to provide a material pipe installation structure for a large injection molding machine, so as to solve the technical problem that in the prior art, hydraulic tools are needed to assist in the installation of large nuts when they are locked, and it is inconvenient for customers to disassemble the material pipe for maintenance on site.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A material pipe installation structure for a large injection molding machine includes a shooting platform bracket;

[0008] A hydraulic motor is connected to the end of the shooting platform bracket, a guide rail and a slider are installed on the shooting platform bracket, and a shot-jet head plate casting is provided on the shooting platform bracket; a barrel fixing ring is provided on the shooting platform bracket, a barrel body is clamped inside the barrel fixing ring, a positioning pin is provided at the front end of the barrel body, and the positioning pin is connected to the shot-jet head plate casting, a slot is provided at the rear end of the barrel body, a barrel positioning ring is installed in the slot, a top screw hole is provided on the barrel positioning ring, a screw one is detachably connected in the top screw hole, and the screw one is fixed to the shot-jet head plate casting, and a barrel body is connected to the front end of the shot-jet head plate casting. The tube group includes a melt-glue cylinder and a shifting and shooting cylinder assembly, the melt-glue cylinder is connected to the middle position of the injection head plate casting, the end of the melt-glue cylinder is connected to a nozzle flange, a circle of screws is connected to the nozzle flange, the end of the nozzle flange away from the melt-glue cylinder is connected to a nozzle body, the ends of the injection head plate casting on both sides are respectively connected to the injection cylinder front cover and the injection cylinder rear cover, the shifting and shooting cylinder assembly is connected in the injection head plate casting between the injection cylinder front cover and the injection cylinder rear cover; the outer ring of the barrel positioning ring and the inner ring of the barrel fixing ring are precisely matched, and the inner ring of the barrel fixing ring and the barrel body are precisely matched.

[0009] As a further solution of the utility model: the shooting platform bracket is connected with bolts.

[0010] As a further solution of the utility model: a heating ring is provided outside the barrel body.

[0011] As a further solution of the utility model: the barrel positioning ring is a half-moon ring structure.

[0012] As a further solution of the utility model: a bracket is provided below the melt cylinder.

[0013] As a further solution of the utility model: a cooling water ring is provided at the tail of the barrel body.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model uses a barrel positioning ring to position the barrel, and the barrel positioning ring is set as a half-moon ring; it is convenient for on-site installation, and the outer ring of the barrel is fixed to the injection head plate casting by a circle of screws; it is convenient for on-site installation and disassembly; the inner side presses the inner ring of the barrel for positioning, so that the force of the barrel is transmitted to the positioning ring, so that the force is evenly applied, which reduces the deformation caused by uneven force, and also increases the force area and reduces deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 yes Figure 1 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. Barrel positioning ring; 2. Barrel fixing ring; 3. Barrel body; 4. Injection head plate casting; 5. Top screw hole; 6. Screw 1; 7. Slot; 9. Positioning pin; 11. Melt cylinder; 12. Nozzle body; 13. Shooting platform bracket; 14. Nozzle flange; 15. Screw 2; 16. Moving cylinder assembly; 17. Injection cylinder front cover; 18. Injection cylinder rear cover. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 2As shown, a material pipe installation structure of a large injection molding machine includes a shooting platform bracket 13, the shooting platform bracket 13 is connected with bolts, and the height and left and right deviation of the shooting platform bracket 13 can be adjusted by adjusting the bolts. The end of the shooting platform bracket 13 is connected with a hydraulic motor, and a guide rail and a slider are installed on the shooting platform bracket 13. The shooting platform bracket 13 is provided with a shot glue head plate casting 4, and the shot glue head plate casting 4 can be driven by the hydraulic motor to move forward and backward on the shooting platform bracket 13; the shooting platform bracket 13 is provided with a barrel fixing ring 2, and the barrel fixing ring 2 is clamped with a barrel body 3 inside, and the barrel body 3 is provided with a heating ring outside, and a cooling water ring is provided at the tail of the barrel body 3. If the high temperature lasts for a long time, the plastic will agglomerate and cannot be unloaded, so cooling water is needed to cool the barrel body 3. A positioning pin 9 is provided at the front end of the barrel body 3, and the positioning pin 9 is connected to the injection head plate casting 4. An injection cylinder is provided at the bottom of the barrel body 3, and a card slot 7 is provided at the rear end of the barrel body 3. A barrel positioning ring 1 is installed in the card slot 7. The barrel positioning ring 1 is a half-moon ring structure, which is easy to install and disassemble. A top screw hole 5 is provided on the barrel positioning ring 1, and the top screw hole 5 can be detachably connected There is a screw 6, and the screw 6 is fixed on the injection head plate casting 4, so that the barrel fixing ring 2 is locked on the injection head plate casting 4 through the screw 6. The front end of the injection head plate casting 4 is connected with a material pipe group, and the material pipe group includes a melt barrel 11 and a shifting cylinder assembly 16. The melt barrel 11 is connected to the middle position of the injection head plate casting 4. The end of the melt barrel 11 is connected to a nozzle flange 14. A bracket is provided under the melt barrel 11 to prevent the melt barrel 11 from sagging due to excessive weight. It is generally only used on injection molding machines with large injection volumes. A circle of screws 15 is connected to the nozzle flange 14. The nozzle body 12 is connected to the end of the nozzle flange 14 away from the melt cylinder 11, and the ends of the injection head plate casting 4 on both sides are respectively connected to the injection cylinder front cover 17 and the injection cylinder rear cover 18, and the displacement cylinder assembly 16 is connected in the injection head plate casting 4 between the injection cylinder front cover 17 and the injection cylinder rear cover 18; the outer ring of the barrel positioning ring 1 and the inner ring of the barrel fixing ring 2 are precisely matched, and the inner ring of the barrel fixing ring 2 and the barrel body 3 are precisely matched, and the barrel fixing ring 2 has a guiding and positioning function on the barrel body 3 to prevent the material tube group from sagging and causing deformation under the action of gravity.

[0022] The working principle of the utility model is as follows: when using the device, the height and left and right deviations of the shooting platform bracket 13 are adjusted by adjusting the bolts on the shooting platform bracket 13. After adjusting to the appropriate position, the barrel positioning ring 1 is used to position and clamp the barrel body 3. Since the barrel positioning ring 1 is a half-moon ring structure, it can be conveniently installed on site. The barrel body 3 is fixed with a circle of screws 6 on the outer ring through the top screw hole 5 and fixed to the injection head plate casting 4; the inner side of the screw 6 presses the inner ring of the barrel body 3 for positioning, so that the force of the barrel body 3 is transmitted to the barrel positioning ring 1, so that the barrel body 3 is evenly stressed, and the deformation of the barrel body 3 caused by uneven stress is prevented. The material is added into the barrel body 3, and the material is heated by the heating ring outside the barrel body 3 to melt the material inside the barrel body 3, and the molten material is stored in the huge injection cylinder below. When the glue is full, the injection cylinder below injects the melted glue into the mold through the mechanical switch in the nozzle flange 14.

[0023] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A material pipe installation structure for a large injection molding machine, comprising a shooting platform bracket (13); characterized in that: The end of the shooting platform bracket (13) is connected to a hydraulic motor, a guide rail and a slider are installed on the shooting platform bracket (13), and a shot-casting head plate (4) is provided on the shooting platform bracket (13); a barrel fixing ring (2) is provided on the shooting platform bracket (13), a barrel body (3) is clamped inside the barrel fixing ring (2), a positioning pin (9) is provided at the front end of the barrel body (3), and the positioning pin (9) is connected to the shot-casting head plate (4); a clamping groove (7) is provided at the rear end of the barrel body (3), a barrel positioning ring (1) is installed in the clamping groove (7), and a top screw hole (5) is provided on the barrel positioning ring (1), a screw (6) is detachably connected in the top screw hole (5), and the screw (6) is fixed on the shot-casting head plate (4); a material pipe group is connected to the front end of the shot-casting head plate (4); The material tube group comprises a melt glue cylinder (11) and a shifting and shooting cylinder assembly (16), wherein the melt glue cylinder (11) is connected to the middle position of the injection head plate casting (4), the end of the melt glue cylinder (11) is connected to a nozzle flange (14), a circle of screws (15) are connected to the nozzle flange (14), the end of the nozzle flange (14) away from the melt glue cylinder (11) is connected to a nozzle body (12), the ends of the injection head plate casting (4) on both sides are respectively connected to a front cover (17) of the injection cylinder and a rear cover (18) of the injection cylinder, and the shifting and shooting cylinder assembly (16) is connected in the injection head plate casting (4) between the front cover (17) of the injection cylinder and the rear cover (18) of the injection cylinder; the outer ring of the barrel positioning ring (1) and the inner ring of the barrel fixing ring (2) are precisely matched, and the inner ring of the barrel fixing ring (2) and the barrel body (3) are precisely matched.

2. The material pipe installation structure of a large injection molding machine according to claim 1, characterized in that: The shooting platform bracket (13) is connected with bolts.

3. The material pipe installation structure of a large injection molding machine according to claim 1, characterized in that: A heating ring is arranged outside the barrel body (3).

4. The material pipe installation structure of a large injection molding machine according to claim 1, characterized in that: The barrel positioning ring (1) is a half-moon ring structure.

5. The material pipe installation structure of a large injection molding machine according to claim 1, characterized in that: A support is provided below the melt glue cylinder (11).

6. The material pipe installation structure of a large injection molding machine according to claim 1, characterized in that: A cooling water ring is provided at the tail of the barrel body (3).

Images