Glue passing head assembly capable of preventing backflow

Abstract

The utility model relates to the technical field of gluing head components, in particular to a backflow-preventing gluing head component, which comprises a gluing head, a glue stopping ring, a limiting ring and a connecting rod, the back of the gluing head is connected with the connecting rod, the outside of the connecting rod is connected with the glue stopping ring and the limiting ring, the outside of the gluing head is provided with a plurality of groups of glue inlet grooves, and the glue inlet grooves are connected with the glue stopping ring and the limiting ring. A plurality of guide strips are arranged on the front face of the glue stopping ring, a plurality of blocking blocks are arranged on the front face of the limiting ring, a connecting groove is formed in the back face of the limiting ring, and a connecting ring is arranged at the position, close to the back face of the limiting ring, of the outer portion of the connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of glue heads, in particular to a glue head assembly for preventing backflow. Background Technique

[0002] When the glue head assembly is in use, backflow occurs and the required injection pressure cannot be achieved, affecting the overall quality and processing efficiency.

[0003] Therefore, it is necessary to design a glue head assembly for preventing backflow to solve the problems in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art, and a glue head assembly for preventing backflow is proposed.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A glue head assembly for preventing backflow, including a glue head, a glue stop ring, a limit ring and a connecting rod. The back of the glue head is connected with a connecting rod, and the outside of the connecting rod is connected with a glue stop ring and a limit ring;

[0007] Multiple groups of glue inlet grooves are opened on the outside of the glue head;

[0008] Multiple groups of guide strips are arranged on the front of the glue stop ring;

[0009] Multiple groups of blocking blocks are arranged on the front of the limit ring, and a connecting groove is opened on the back of the limit ring;

[0010] A connecting ring is arranged on the outside of the connecting rod near the back of the limit ring.

[0011] As a preferred scheme of the utility model, the connecting rod and the back of the glue head are connected by screwing.

[0012] As a preferred scheme of the utility model, the connecting rod and the limit ring are connected by sleeving, and the limit ring and the connecting ring are connected by screwing.

[0013] As a preferred scheme of the utility model, the connecting rod and the glue stop ring are connected by sleeving.

[0014] As a preferred scheme of the utility model, the guide strip and the glue inlet groove are connected by sleeving.

[0015] As a preferred scheme of the utility model, the blocking block and the back of the glue stop ring are connected by plugging.

[0016] In summary, the technical effects and advantages of the utility model are as follows: when assembling the glue head assembly for preventing backflow, the limit ring is put on the connecting ring on the connecting rod and rotated to lock it, and then the stop glue ring is put on the connecting rod, and then the connecting rod is connected to the glue head, and at the same time, the guide strip on the stop glue ring is inserted into the glue feed groove, and after the installation is completed, it is necessary to ensure that the blocking block, the guide strip and the glue feed groove are in the same direction. When gluing, the stop glue ring moves toward the glue head under the action of gluing, so that the glue liquid passes through the outside of the limit ring into between the connecting rod and the stop glue ring, and then passes through the glue feed groove. During injection molding, the glue at the front end of the glue head The liquid is pressed toward the mold through the pressure of the glue head. When the glue head moves forward, the stop ring moves toward the limit ring under the action of the glue liquid at the front end of the glue head, so that the blocking block blocks the glue inlet of the stop ring to form a glue head assembly to prevent backflow. After the injection molding is completed, the above operation can be repeated for glueing again. The guide strip connected between the glue head and the stop ring can ensure the stable movement of the stop ring, thereby ensuring that the blocking blocks on the back of the stop ring and the limit ring are distributed correspondingly, thereby improving the overall stability. The overall structure is a combined structure, which is convenient for disassembly, maintenance and replacement of later components, thereby improving operating efficiency and reducing replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a structural diagram of the rubber head of the utility model;

[0019] Figure 3 This is a structural diagram of the connecting rod of the utility model;

[0020] Figure 4 This is a structural diagram of the glue stop ring of the utility model;

[0021] Figure 5 This is a front structural diagram of the glue stop ring of the utility model;

[0022] Figure 6 This is a back structural diagram of the glue stop ring of the utility model;

[0023] Figure 7 This is a structural diagram of the limit ring of the utility model;

[0024] Figure 8 This is a front structural diagram of the limit ring of the utility model;

[0025] Figure 9 This is a back structural diagram of the limit ring of the utility model.

[0026] In the figure: 1, glue head; 101, glue inlet groove; 2, glue stop ring; 201, guide strip; 3, limit ring; 301, blocking block; 302, connecting groove; 4, connecting rod; 401, connecting ring. DETAILED DESCRIPTION

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] Referring to Figures 1-9 , an overcoating head assembly for preventing backflow includes a coating head 1, a glue stopper ring 2, a limiting ring 3, and a connecting rod 4. A connecting rod 4 is connected to the back of the coating head 1, and a glue stopper ring 2 and a limiting ring 3 are connected to the outside of the connecting rod 4; a plurality of glue inlet grooves 101 are formed on the outside of the coating head 1; a plurality of guiding strips 201 are provided on the front surface of the glue stopper ring 2; a plurality of blocking blocks 301 are provided on the front surface of the limiting ring 3, and a connecting groove 302 is formed on the back surface of the limiting ring 3; a connecting ring 401 is provided on the outside of the connecting rod 4 near the back surface of the limiting ring 3.

[0029] Referring to Figures 1-9 , when the overcoating head assembly is in use, backflow occurs and the required injection pressure cannot be achieved, affecting the overall quality and processing efficiency. The connecting rod 4 and the back surface of the coating head 1 are connected by screwing, the connecting rod 4 and the limiting ring 3 are connected by sleeving, the limiting ring 3 and the connecting ring 401 are connected by screwing, the connecting rod 4 and the glue stopper ring 2 are connected by sleeving, the guiding strip 201 and the glue inlet groove 101 are connected by sleeving, and the blocking block 301 and the back surface of the glue stopper ring 2 are connected by plugging. During assembly, the limiting ring 3 is sleeved on the connecting ring 401 on the connecting rod 4 and rotated and locked, then the glue stopper ring 2 is sleeved on the connecting rod 4, and then the connecting rod 4 is connected to the coating head 1. At the same time, it is ensured that the guiding strip 201 on the glue stopper ring 2 is inserted into the glue inlet groove 101, and after installation, it is necessary to ensure that the blocking block 301, the guiding strip 201, and the glue inlet groove 101 are in the same direction. During overcoating, under the action of overcoating, the glue stopper ring 2 moves towards the coating head 1, so that the glue liquid enters between the connecting rod 4 and the glue stopper ring 2 through the outside of the limiting ring 3, and then passes through the glue inlet groove 101. During injection molding, the glue liquid at the front end of the coating head 1 is pressed towards the mold by the pressure of the advancing coating head 1. When the coating head 1 moves forward, under the action of the glue liquid at the front end of the coating head 1, the glue stopper ring 2 moves towards the limiting ring 3, so that the blocking block 301 blocks the glue inlet of the glue stopper ring 2, forming an overcoating head assembly for preventing backflow. After injection molding is completed, the above operation can be repeated for overcoating again. The guiding strip 201 connecting the coating head 1 and the glue stopper ring 2 can ensure the stable movement of the glue stopper ring 2, so as to ensure that the back of the glue stopper ring 2 and the blocking block 301 on the limiting ring 3 are correspondingly distributed, improving the overall stability. Moreover, the whole is a combined structure, which is convenient for disassembly, maintenance, and replacement of later components, improving the operation efficiency and reducing the replacement cost.

[0030] Working principle: The connecting rod 4 of the glue application head assembly for preventing backflow is screwed and connected to the back of the glue head 1. The connecting rod 4 and the limiting ring 3 are sleeved and connected. The limiting ring 3 and the connecting ring 401 are screwed and connected. The connecting rod 4 and the glue stopping ring 2 are sleeved and connected. The guiding strip 201 and the glue inlet groove 101 are sleeved and connected. The blocking block 301 and the back of the glue stopping ring 2 are inserted and connected. During assembly, the limiting ring 3 is sleeved on the connecting ring 401 on the connecting rod 4 and rotated and locked. Then the glue stopping ring 2 is sleeved on the connecting rod 4, and then the connecting rod 4 is connected to the glue head 1. At the same time, it is ensured that the guiding strip 201 on the glue stopping ring 2 is inserted into the glue inlet groove 101, and after installation, it is necessary to ensure that the blocking block 301, the guiding strip 201 and the glue inlet groove 101 are in the same direction. During glue application, under the action of glue application, the glue stopping ring 2 moves towards the glue head 1, so that the glue liquid enters between the connecting rod 4 and the glue stopping ring 2 through the outside of the limiting ring 3, and then through the glue inlet groove 101. During injection molding, the glue liquid at the front end of the glue head 1 is pressed towards the mold by the pressure of the forward movement of the glue head 1. When the glue head 1 moves forward, under the action of the glue liquid at the front end of the glue head 1, the glue stopping ring 2 moves towards the limiting ring 3, so that the blocking block 301 blocks the glue inlet of the glue stopping ring 2, forming a glue application head assembly for preventing backflow. After injection molding is completed, the above operations can be repeated for glue application again. The guiding strip 201 connecting the glue head 1 and the glue stopping ring 2 can ensure the stable movement of the glue stopping ring 2, so as to ensure that the blocking block 301 on the back of the glue stopping ring 2 and the limiting ring 3 are correspondingly distributed, improving the overall stability. And the whole is a combined structure, which is convenient for disassembly, maintenance and replacement of later components, improving the operation efficiency and reducing the replacement cost.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glue head assembly for preventing backflow, comprising a glue head (1), a glue stop ring (2), a limit ring (3) and a connecting rod (4), characterized in that: The back of the rubber head (1) is connected to a connecting rod (4), and the outside of the connecting rod (4) is connected to a stop ring (2) and a limit ring (3); The glue head (1) is provided with a plurality of glue feeding slots (101) on the outside; The front side of the glue stop ring (2) is provided with a plurality of guide strips (201); The front side of the limiting ring (3) is provided with a plurality of blocking blocks (301), and the back side of the limiting ring (3) is provided with a connecting groove (302); A connecting ring (401) is provided on the outside of the connecting rod (4) near the back side of the limiting ring (3).

2. The backflow-preventing glue head assembly according to claim 1, characterized in that: The connecting rod (4) and the back side of the rubber head (1) are screwed together via threads.

3. The backflow-preventing glue head assembly according to claim 1, characterized in that: The connecting rod (4) and the limiting ring (3) are connected via a sleeve connection, and the limiting ring (3) and the connecting ring (401) are connected via a screw thread.

4. The backflow-preventing glue head assembly according to claim 1, characterized in that: The connecting rod (4) and the glue stop ring (2) are connected via a sleeve connection.

5. The backflow-preventing glue head assembly according to claim 1, characterized in that: The guide strip (201) and the glue feeding groove (101) are connected via a sleeve connection.

6. The backflow-preventing glue head assembly according to claim 1, characterized in that: The blocking block (301) and the back side of the glue stop ring (2) are connected by plugging.

Images