Energy-saving injection molding machine screw

Abstract

The utility model discloses an energy-saving injection molding machine screw, which relates to the technical field of injection molding machine screws, and comprises a metering screw, a compression screw and a feeding screw, the metering screw, the compression screw and the feeding screw are respectively provided with a connecting groove, the connecting groove is of a herringbone structure, one end of the connecting rod is provided with a through hole, and the other end of the connecting rod is provided with a through hole. A connecting groove is formed in one end of the connecting rod, the connecting rod is matched with the connecting groove, a connecting groove is formed in the end of the piston rod, the interior of the piston rod is of a hollow structure, the fixing assembly is arranged at the other end of the connecting rod and used for fixing the metering screw, and the three clamping assemblies are arranged at the top of the connecting rod. According to the utility model, when one section of the feeding screw rod, the compression screw rod and the metering screw rod is damaged, only the damaged screw rod needs to be replaced, and the whole screw rod does not need to be replaced, so that the cost is saved, and the resource waste is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine screw technical field especially is related to a kind of energy-saving injection molding machine screw. BACKGROUND

[0002] Injection molding machine is also named injection molding machine or injection machine, it is the main molding equipment of thermoplastic or thermosetting plastic using plastic molding die to be made into various shapes of plastic product, injection molding machine can heat plastic, melt plastic is subjected to high pressure, so that it is filled with mold cavity, injection molding machine when transmitting plastic, through the rotation of screw, the transmission of plastic in different states is completed, finally with certain pressure is sprayed in mold cavity, and injection molding work is completed.

[0003] In prior art, for example, the utility model discloses a screw body, the screw body is provided with an operation cavity, the operation cavity is provided with an induction mechanism facilitating efficient rotation processing of the screw body;The induction mechanism includes two installation grooves symmetrically arranged on the screw body, two push plates are slidably connected to the two installation grooves, and two sliding rods are slidably connected to the two installation grooves.

[0004] In the technical scheme, during the process that the injection molding machine pushes and transports the plastic in molten state, the induction mechanism is used to connect the circuit, the heating ring is heated after being electrified, the plastic in molten state at the extrusion position is heated and melted through the conduction of the screw body, so that the pushing force on the screw body is reduced, and the energy-saving effect is achieved, but the screw of the injection molding machine in the scheme is still an integral structure, when one section of the screw is damaged, the whole screw needs to be replaced, the cost is increased, and resources are wasted. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of energy-saving injection molding machine screw to solve the technical problems in prior art.

[0006] The utility model provides a kind of energy-saving injection molding machine screw, comprising:

[0007] Metering screw, compression screw and feeding screw, the metering screw, compression screw and feeding screw are all provided with connecting groove, and the connecting groove is "person" type structure;

[0008] Connecting rod, one end of the connecting rod is provided with through hole, and connecting rod and connecting groove are matched;

[0009] Piston rod, the connecting groove is formed in the end of the piston rod, and the piston rod is hollow structure;

[0010] Fixed assembly, the fixed assembly is arranged at the end of metering screw;

[0011] A connecting assembly is arranged at the other end of the connecting rod, and the connecting assembly and the fixing assembly are in transmission cooperation;

[0012] Three locking assemblies are arranged in the piston rod;

[0013] Three clamping assemblies are arranged at the top of the connecting rod, and the three clamping assemblies are used for fixing the feeding screw rod, and the three clamping assemblies and the three locking assemblies are in one-to-one correspondence;

[0014] A heating assembly is arranged in the through hole, and the heating assembly is used for heating the connecting rod;

[0015] A transmission assembly is arranged on the side wall of the piston rod, and the transmission assembly and the clamping assembly are in transmission cooperation.

[0016] Preferably, the fixing assembly comprises:

[0017] A screw rod head is rotationally arranged at the end of the metering screw rod;

[0018] A second threaded hole is formed in the side wall of the screw rod head, and the second threaded hole is matched with the second bolt.

[0019] Preferably, the connecting assembly comprises:

[0020] A second bolt is fixed at the end of the connecting rod.

[0021] Preferably, the locking assembly comprises:

[0022] A clamping block is arranged in the piston rod.

[0023] Preferably, the clamping assembly comprises:

[0024] A clamping groove is formed in the side wall of the connecting rod, and the clamping groove is below the clamping block.

[0025] Preferably, the clamping groove and the clamping block are trapezoidal structures, and the clamping groove and the clamping block are matched.

[0026] Preferably, the heating assembly comprises:

[0027] A heat-conducting rod is arranged in the through hole.

[0028] Preferably, the transmission assembly comprises:

[0029] A first threaded hole is circularly and equidistantly formed in the side wall of the piston rod;

[0030] A first bolt is arranged on the outer wall of the piston rod, the first bolt is rotationally connected with the clamping block, and the first bolt and the first threaded hole are matched.

[0031] Compared with the prior art, the utility model has the advantages that:

[0032] The fixing assembly, the clamping assembly, the heating assembly and the transmission assembly are arranged, so that the feeding screw rod, the compression screw rod and the metering screw rod are sequentially connected through the connecting rod passing through the connecting groove when the device is used, the fixing assembly fixes the metering screw rod at one end of the connecting rod, the other end of the connecting rod is connected with the piston rod, and the feeding screw rod, the compression screw rod and the metering screw rod are locked by mutual extrusion through cooperation of the clamping assembly and the transmission assembly, when a certain section of the feeding screw rod, the compression screw rod and the metering screw rod is damaged, only the damaged screw rod needs to be replaced, the whole screw rod does not need to be replaced, cost is saved, and resource waste is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0034] Figure 2 is the explosion structure schematic diagram of the piston rod, the first threaded hole, the first bolt, the clamping block and the power supply of the utility model;

[0035] Figure 3 is the explosion structure schematic diagram of the feeding screw rod, the metering screw rod, the compression screw rod and the connecting rod of the utility model;

[0036] Figure 4 is the sectional structure schematic diagram of the screw rod head and the metering screw rod of the utility model;

[0037] Figure 5 is the explosion structure schematic diagram of the connecting rod and the heat conduction rod of the utility model.

[0038] REFERENCE SIGNS:

[0039] 1, screw rod head; 2, metering screw rod; 3, compression screw rod; 4, feeding screw rod; 5, piston rod; 6, connecting groove; 7, first threaded hole; 8, first bolt; 9, connecting rod; 10, second bolt; 11, second threaded hole; 12, heat conduction rod; 13, clamping groove; 14, through hole; 15, clamping block. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model is further described in detail in combination with the drawings and specific embodiments.

[0041] In combination with the drawings, the utility model is described in detail as follows. Figures 1 to 5The utility model discloses an energy -conserving injection molding machine screw provides, including:

[0042] Metering screw 2, compression screw 3 and feed screw 4, metering screw 2, compression screw 3 and feed screw 4 all are set with connecting groove 6, and connecting groove 6 is " person " shape structure;

[0043] Connecting rod 9, one end of connecting rod 9 is set with through -hole 14, and connecting rod 9 and connecting groove 6 are adapted;

[0044] Piston rod 5, and piston rod 5 end is set with connecting groove 6, and the inside of piston rod 5 is hollow structure;

[0045] Fixed assembly, and fixed assembly sets up at metering screw 2 end;

[0046] Connecting assembly, and connecting assembly sets up at the other end of connecting rod 9, and connecting assembly and fixed assembly constitute transmission cooperation;

[0047] Three locking assemblies, three locking assemblies all set up in piston rod 5;

[0048] Three clamping assemblies, three clamping assemblies all set up at the top of connecting rod 9, and three clamping assemblies all are used for the fixed of feed screw 4, and three clamping assemblies and three locking assemblies correspond one to one;

[0049] Heating assembly, and heating assembly sets up in through -hole 14, and heating assembly is used for the heating of connecting rod 9;

[0050] Transmission assembly, and transmission assembly sets up on the lateral wall of piston rod 5, and transmission assembly and clamping assembly constitute transmission cooperation.

[0051] When using the device, the feed screw 4, the compression screw 3 and the metering screw 2 are sequentially connected by the connecting rod 9 passing through the connecting groove 6, the metering screw 2 is fixed at one end of the connecting rod 9 by the fixed assembly, the other end of the connecting rod 9 is connected with the piston rod 5, and the feed screw 4, the compression screw 3 and the metering screw 2 are locked by the cooperation of the clamping assembly and the transmission assembly. When using the device, only the damaged screw needs to be replaced when one of the feed screw 4, the compression screw 3 and the metering screw 2 is damaged, without replacing the whole screw, the cost is saved, the resource waste is avoided, the connecting rod 9 can be heated by the heating assembly, the heat is transmitted to the feed screw 4, the compression screw 3 and the metering screw 2 through the connecting rod 9, and the plastic in the molten state is directly heated, so that the energy consumption of the injection molding machine is reduced, and the service life of the injection molding machine is prolonged.

[0052] Further, the fixed assembly comprises:

[0053] Screw head 1, and screw head 1 rotationally sets up at metering screw 2 end.

[0054] The second threaded hole 11 is arranged on the side wall of the screw head 1, and the second threaded hole 11 is matched with the second bolt 10.

[0055] The connecting assembly comprises:

[0056] The second bolt 10 is fixed on the end of the connecting rod 9.

[0057] When the connecting rod 9 is inserted into the connecting groove 6 to sequentially connect the feeding screw 4, the compression screw 3 and the metering screw 2, the screw head 1 is rotated to drive the second threaded hole 11 to rotate, and the second bolt 10 is matched to fix the metering screw 2 on the end of the connecting rod 9.

[0058] Further, the locking assembly comprises:

[0059] The clamping block 15 is arranged in the piston rod 5.

[0060] The clamping assembly comprises:

[0061] The clamping groove 13 is arranged on the side wall of the connecting rod 9, and the clamping groove 13 is below the clamping block 15; the clamping groove 13 and the clamping block 15 are both trapezoidal structures, and the clamping groove 13 is matched with the clamping block 15.

[0062] The transmission assembly comprises:

[0063] The first threaded hole 7 is circular and equidistantly arranged on the side wall of the piston rod 5.

[0064] The first bolt 8 is arranged on the outer side wall of the piston rod 5, and the first bolt 8 is rotationally connected with the clamping block 15, and the first bolt 8 is matched with the first threaded hole 7.

[0065] When the metering screw 2 is fixed on one end of the connecting rod 9, the connecting rod 9 is inserted into the connecting groove 6 arranged at the end of the piston rod 5 to preliminarily connect the connecting rod 9 and the piston rod 5; at this time, the first bolt 8 is rotated to drive the clamping block 15 to move close to the corresponding clamping groove 13, so that the clamping block 15 and the clamping groove 13 are in contact, the connecting rod 9 is driven to move to the inside of the piston rod 5, and the feeding screw 4, the compression screw 3 and the metering screw 2 are driven to move close to the piston rod 5; the clamping block 15 is further moved downward, the friction between the clamping block 15 and the clamping groove 13 is increased, the feeding screw 4, the compression screw 3 and the metering screw 2 are pressed against each other and the piston rod 5, the pressure on the connecting rod 9 is increased, the feeding screw 4, the compression screw 3 and the metering screw 2 are pressed more tightly, and the feeding screw 4, the compression screw 3, the metering screw 2 and the piston rod 5 are tightly attached.

[0066] Further, the heating assembly comprises:

[0067] The heat conducting rod 12 is arranged in the through hole 14.

[0068] The power supply of the heat conducting rod 12 is turned on, the heat conducting rod 12 is electrified, the temperature of the electrified heat conducting rod 12 starts to rise, at this time, the heat conducting rod 12 transmits heat to the connecting rod 9, and then the heat is transmitted to the feeding screw rod 4, the compression screw rod 3 and the metering screw rod 2 through the connecting rod 9, so that the screw rod feeding screw rod 4, the compression screw rod 3 and the metering screw rod 2 rotate while heating the material particles, so that the material can be heated during the injection molding process, the power output of the driving motor of the injection molding machine is reduced, and the energy consumption is further reduced.

Claims

1. An energy efficient injection molding machine screw characterized by, Include: Metering screw (2), compression screw (3) and feeding screw (4), the metering screw (2), compression screw (3) and feeding screw (4) are provided with connecting groove (6), the connecting groove (6) is "person” type structure; Connecting rod (9), one end of the connecting rod (9) is provided with through hole (14), and the connecting rod (9) and the connecting groove (6) are matched; Piston rod (5), the piston rod (5) end is provided with connecting groove (6), and the piston rod (5) is hollow structure; Fixed assembly, the fixed assembly is arranged at the metering screw (2) end; Connecting assembly, the connecting assembly is arranged at the other end of the connecting rod (9), and the connecting assembly and the fixed assembly constitute driving cooperation; Three locking assemblies, three locking assemblies are arranged in the piston rod (5); Three clamping assemblies, three clamping assemblies are arranged on the top of the connecting rod (9), the three clamping assemblies are used for fixing the feeding screw (4), and the three clamping assemblies and the three locking assemblies correspond one by one; Heating assembly, the heating assembly is arranged in the through hole (14), and the heating assembly is used for heating the connecting rod (9); Driving assembly, the driving assembly is arranged on the side wall of the piston rod (5), and the driving assembly and the clamping assembly constitute driving cooperation.

2. The energy efficient injection molding machine screw of claim 1 wherein, The fixed assembly comprises: Screw head (1), the screw head (1) is rotatably arranged at the metering screw (2) end; Second threaded hole (11), the second threaded hole (11) is arranged on the side wall of the screw head (1), and the second threaded hole (11) is matched with the second bolt (10).

3. The energy efficient injection molding machine screw of claim 1 wherein, The connecting assembly comprises: Second bolt (10), the second bolt (10) is fixed at the end of the connecting rod (9).

4. The energy efficient injection molding machine screw of claim 1 wherein, The locking assembly comprises: Clamping block (15), the clamping block (15) is arranged in the piston rod (5).

5. An energy efficient injection molding machine screw as in claim 4 wherein, The clamping assembly comprises: Clamping groove (13), the clamping groove (13) is arranged on the side wall of the connecting rod (9), and the clamping groove (13) is below the clamping block (15).

6. An energy efficient injection molding machine screw as in claim 5 wherein, The clamping groove (13) and the clamping block (15) are both trapezoidal structure, and the clamping groove (13) and the clamping block (15) are matched.

7. The energy-efficient injection molding machine screw of claim 1 wherein, The heating assembly comprises: Thermal rod (12), the thermal rod (12) is arranged in the through hole (14).

8. The energy-efficient injection molding machine screw of claim 3 wherein, The driving assembly comprises: First threaded hole (7), the first threaded hole (7) is circular equidistantly arranged on the side wall of the piston rod (5); First bolt (8), the first bolt (8) is arranged on the outer side wall of the piston rod (5), the first bolt (8) and the clamping block (15) are rotatably connected, and the first bolt (8) and the first threaded hole (7) are matched.

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