Screw gun barrel convenient to replace for injection molding machine

Abstract

The utility model relates to the field of screw barrels, in particular to a convenient-to-replace screw barrel for an injection molding machine, which comprises a charging barrel, and the screw body is installed in the charging barrel, one end of the screw body is sleeved with a non-return ring, and the front end of the charging barrel is fixedly connected with a connecting base. According to the convenient-to-replace screw gun barrel for the injection molding machine, due to the arrangement of the elastic arc pieces, the limiting grooves, the clamping grooves and the nozzle assembly, a worker can conveniently mount and dismount the screw gun barrel for the injection molding machine, and limiting blocks on the upper side and the lower side of the mounting block are inserted between the two sets of elastic arc pieces to form limiting; and after the mounting block is placed in the connecting base, the telescopic rods on the two sides are extruded to stretch out and draw back, so that the telescopic rods push the two sets of clamping blocks inside to stretch out and draw back from the mounting block, the clamping blocks are clamped in clamping grooves in the two sets of elastic arc pieces, and compared with a traditional flange mounting mode, the direct insertion mounting mode is more convenient and faster.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw cannon, concretely relates to a screw cannon for injection molding machine convenient to replace. BACKGROUND

[0002] The injection molding machine is also called injection molding machine or injection machine, which is the main molding equipment for making various shape plastic products by using thermoplastic or thermosetting plastic through a plastic molding die. The cannon used in the rubber injection molding machine is of screw type and straight pressure type. The screw type cannon uses a screw as a power component for conveying rubber, which can melt, mix and compress the raw materials during conveying.

[0003] The existing screw cannon for injection molding machine is basically disassembled and assembled by flange during disassembly of the screw cannon. However, the disassembly and assembly require necessary tools such as wrench, and the steps are complicated, which requires more time and effort. In addition, the operator needs to have certain professional skills and experience to ensure the correctness and safety of the disassembly and assembly process.

[0004] Therefore, it is necessary to invent a screw cannon for injection molding machine convenient to replace to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a screw cannon for injection molding machine convenient to replace, which is characterized in that the limiting blocks on the upper and lower sides of the mounting block are inserted between the two groups of elastic arc pieces to form limiting, and the mounting block is inserted into the connecting seat to extrude the telescopic rods on both sides to make the telescopic rods push the two groups of clamping blocks to extend out of the mounting block, so that the clamping blocks are clamped in the clamping grooves in the two groups of elastic arc pieces. The mounting is directly inserted, which is more convenient and faster than the traditional flange mounting, so as to solve the problems in the above background technology, i.e. the screw cannon for injection molding machine is basically disassembled and assembled by flange during disassembly of the screw cannon, which requires necessary tools such as wrench, and the steps are complicated, which requires more time and effort. In addition, the operator needs to have certain professional skills and experience to ensure the correctness and safety of the disassembly and assembly process.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a screw cannon for injection molding machine convenient to replace, which comprises a barrel.

[0007] A screw body is installed in the barrel, one end of the screw body is externally sleeved with a non-return ring, the front end of the barrel is fixedly connected with a connecting seat, the connecting seat is fixedly connected with elastic arc pieces on both sides, and the inner side surfaces of the connecting seat are provided with clamping grooves.

[0008] The nozzle assembly is arranged in the connecting seat and is detachably mounted, and the nozzle assembly comprises a mounting block and a nozzle head.

[0009] Preferably, the elastic arc pieces are provided with two groups, and a limiting groove is arranged between the two groups of elastic arc pieces.

[0010] Preferably, the mounting block is arranged in the connecting seat, the upper and lower sides of the mounting block are fixedly connected with limiting blocks, the inside of the mounting block is movably connected with a telescopic rod, and the two sides of the inside of the mounting block are slidably connected with clamping blocks.

[0011] Preferably, the outside of the telescopic rod is fixedly connected with a top block, and the rear side of the top block and the outside of the telescopic rod are provided with a first spring.

[0012] Preferably, the upper side of the clamping block is fixedly connected with a connecting plate, and the rear side of the connecting plate is fixedly provided with a second spring.

[0013] Preferably, the outside surface of the elastic arc piece is provided with a thread, and the outside of the elastic arc piece is threadedly connected with a nut.

[0014] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0015] 1. Through the arrangement of the elastic arc pieces, the limiting grooves, the clamping grooves and the nozzle assembly, the staff can conveniently mount and dismount the screw cylinder of the injection molding machine, the limiting blocks on the upper and lower sides of the mounting block are inserted between the two groups of elastic arc pieces to form limiting, the mounting block is inserted into the connecting seat to extrude the telescopic rods on the two sides to make the telescopic rods push the two groups of clamping blocks to extrude from the mounting block, and the clamping blocks are clamped in the clamping grooves in the two groups of elastic arc pieces, so that the mounting is directly inserted, which is more convenient and faster than the traditional flange mounting.

[0016] 2. Through the arrangement of the nozzle assembly and the nut, when the mounting block is inserted into the connecting seat for limiting, the nut is sleeved on the two groups of elastic arc pieces, the thread is arranged on the outside of the elastic arc piece, the nut is rotated to make the elastic arc pieces extrude each other, the limiting blocks between the elastic arc pieces are clamped, and the firmness of the mounting block and the nozzle head in the connecting seat is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is the internal structure schematic view of the barrel of the utility model;

[0020] Figure 3 It is the structure schematic view of the connecting seat and elastic arc piece of the utility model;

[0021] Figure 4 It is the structure schematic view of the nozzle assembly of the utility model;

[0022] Figure 5 It is the internal structure schematic view of the mounting block of the utility model.

[0023] Mark explanation:

[0024] 1, barrel; 2, screw body; 3, check ring; 4, connecting seat; 5, elastic arc piece; 6, limiting groove; 7, clamping groove; 8, nozzle assembly; 801, mounting block; 802, nozzle head; 803, limiting block; 804, telescopic rod; 805, top block; 806, first spring; 807, clamping block; 808, connecting plate; 809, second spring; 9, nut. Specific implementation

[0025] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of injection molding machine screw barrel for replacing conveniently as shown in Figures 1-5 It comprises barrel 1;

[0027] Screw body 2 is installed in barrel 1, and check ring 3 is provided on the outer end of screw body 2, connecting seat 4 is fixedly connected to the front end of barrel 1, elastic arc piece 5 is fixedly connected to the both sides of connecting seat 4, and clamping groove 7 is formed on the both sides of the inner surface of connecting seat 4.

[0028] Nozzle assembly 8 is arranged in the interior of connecting seat 4, and is used for dismounting and mounting, and nozzle assembly 8 comprises mounting block 801 and nozzle head 802, limiting block 803 on the upper and lower sides of mounting block 801 is inserted between two groups of elastic arc piece 5 to form limiting, and after mounting block 801 is placed in connecting seat 4, telescopic rod 804 on the both sides is extruded to stretch and retract, so that telescopic rod 804 pushes two groups of clamping block 807 in the interior to stretch and retract from mounting block 801, so that clamping block 807 is clamped in the clamping groove 7 in the interior of two groups of elastic arc piece 5, so that the installation in the mode of direct insertion is more convenient and fast compared with the traditional flange installation.

[0029] As shown in Figure 2 And Figure 3As shown, the elastic arc piece 5 is provided with two groups, and the two groups of elastic arc piece 5 are provided with limiting grooves 6, and the limiting blocks 803 on the upper and lower sides of the mounting block 801 are inserted into the limiting grooves 6 between the elastic arc piece 5, so that the mounting block 801 is limited and fixed, and loosening is avoided.

[0030] As shown in Figure 3 , Figure 4 and Figure 5 , the mounting block 801 is arranged inside the connecting seat 4, the upper and lower sides of the mounting block 801 are fixedly connected with the limiting blocks 803, the inside of the mounting block 801 is movably connected with the telescopic rods 804, and the inside of the mounting block 801 is movably connected with the clamping blocks 807.

[0031] As shown in Figure 5 , the telescopic rod 804 is movably connected with the clamping block 807, and the telescopic rod 804 is movably connected with the mounting block 801.

[0032] As shown in Figure 5 , the clamping block 807 is movably connected with the mounting block 801, and the clamping block 807 is movably connected with the telescopic rod 804.

[0033] As shown in Figure 1 and Figure 3 , the outer surface of the elastic arc piece 5 is provided with threads, the outer threads of the elastic arc piece 5 are connected with the nut 9, the nut 9 is sleeved outside the two groups of elastic arc piece 5, and the outer surface of the elastic arc piece 5 is provided with threads, so that the elastic arc piece 5 is rotated to approach each other and is extruded, the limiting blocks 803 between the elastic arc piece 5 are clamped, and the firmness of the mounting block 801 and the nozzle head 802 in the connecting seat 4 is improved.

[0034] The utility model discloses a screw cylinder for injection molding machine, which comprises a connecting seat 4, a mounting block 801, two groups of elastic arc pieces 5, a screw body 2, a nut 9, a first spring 806 and a second spring 809.

[0035] The above only describes some exemplary embodiments of the utility model in a descriptive way, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiment can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A screw barrel for injection molding machines which is easy to replace, characterized in that: Including the barrel (1); The screw body (2) is installed inside the barrel (1), one end of the screw body (2) is externally sleeved with a non-return ring (3), the front end of the barrel (1) is fixedly connected with a connecting seat (4), both sides of the connecting seat (4) are fixedly connected with elastic arc pieces (5), and the inner side surfaces of the connecting seat (4) are provided with clamping grooves (7); The nozzle assembly (8) is arranged inside the connecting seat (4) and is used for dismounting and mounting, the nozzle assembly (8) comprises an installation block (801) and a nozzle head (802).

2. A replaceable injection molding machine screw barrel according to claim 1 wherein: The elastic arc pieces (5) are provided with two groups, and a limiting groove (6) is arranged between the two groups of elastic arc pieces (5).

3. A replaceable injection molding machine screw barrel of claim 1 wherein: The installation block (801) is arranged inside the connecting seat (4), the upper and lower sides of the installation block (801) are fixedly connected with limiting blocks (803), the inside of the installation block (801) is movably connected with a telescopic rod (804), and the inside of the installation block (801) is slidably connected with clamping blocks (807).

4. A replaceable injection molding machine screw barrel of claim 3 wherein: The outside of the telescopic rod (804) is fixedly connected with a top block (805), and the rear side of the top block (805) and the outside of the telescopic rod (804) are provided with a first spring (806).

5. A replaceable injection molding machine screw barrel of claim 3 wherein: The top of the clamping block (807) is fixedly connected with a connecting plate (808), and the rear side of the connecting plate (808) is fixedly provided with a second spring (809).

6. A replaceable injection molding machine screw barrel of claim 1 wherein: The outer surface of the elastic arc piece (5) is provided with a thread, and the outer thread of the elastic arc piece (5) is connected with a nut (9).

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