Rapid injection oil cylinder of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses a quick injection oil cylinder of an injection molding machine, which comprises a first cylinder body and a second cylinder body, the second cylinder body is detachably arranged at the end part of the first cylinder body, a locking component is arranged between the first cylinder body and the second cylinder body, and the locking component is matched with the first cylinder body and the second cylinder body for use. Through the arrangement of a locking assembly, a second cylinder body is in threaded connection with the end of a first cylinder body, then a connecting bolt is in threaded connection with the interior of a threaded cavity, and the connecting bolt extrudes an abutting block, a moving rod and a reset spring, so that a piston disc main body slides in a mounting groove, and gas in the mounting groove flows to a clamping ball; the clamping balls and the clamping grooves are clamped in a sliding mode, it is guaranteed that the connecting parts cannot loosen in the operation process, and the reliability and stability of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a fast injection oil cylinder of an injection molding machine. Background Art

[0002] The fast injection cylinder of the injection molding machine is one of the important components in the modern injection molding machine. Its function is to provide fast and precise injection action during the injection molding process. The fast injection cylinder is one of the core components of the injection molding machine, which is mainly responsible for realizing the rapid injection of plastic materials into the mold cavity during the injection molding process. It is usually composed of a cylinder, a piston, a seal, a transmission mechanism, etc. The main part of the fast injection cylinder is composed of a precision-machined cylinder and a matching piston. The piston moves in the cylinder and is driven by hydraulic or electric force to push the plastic material through the nozzle into the mold. In order to ensure that there is no leakage during the injection process, the fast injection cylinder uses high-performance seals such as piston seals and cylinder seals to prevent pressure loss and liquid leakage. The injection cylinder can quickly respond to the instructions of the control system and realize fast injection action, thereby improving production efficiency. Through the precise electronic control system or hydraulic control system, the speed and pressure of the injection cylinder can be accurately adjusted to ensure the quality and stability of the injection molded products. The fast injection cylinder of the modern injection molding machine is optimized with high reliability and durability, and can maintain stability and performance in long-term production.

[0003] At present, when the fast injection cylinder of the injection molding machine is connected, during the operation of the equipment, especially during high-speed injection, the connection of the fast injection cylinder will be affected by machine vibration and hydraulic shock. If the connection or accessories are not designed reasonably or the material does not meet the requirements, the connection may become loose or damaged; therefore, it does not meet the existing needs. In this regard, we propose a fast injection cylinder for an injection molding machine. Utility Model Content

[0004] The utility model provides a fast injection oil cylinder for an injection molding machine, which has the beneficial effect of ZZZZ, and solves the problem that the fast injection oil cylinder of the injection molding machine mentioned in the background technology mentioned above is affected by machine vibration and hydraulic shock at the connection during the operation of the equipment, especially at high-speed injection. If the connection parts or accessories are not designed reasonably or the materials do not meet the requirements, the connection may become loose or damaged.

[0005] The utility model provides the following technical solution: a fast injection cylinder of an injection molding machine, comprising a first cylinder body and a second cylinder body, wherein the second cylinder body is detachably mounted on the end of the first cylinder body, a locking assembly is installed between the first cylinder body and the second cylinder body, and the locking assembly is used in conjunction with the first cylinder body and the second cylinder body.

[0006] As an optional solution for a fast injection oil cylinder of an injection molding machine described in the utility model, wherein: the first cylinder body is set as an oil cylinder, the second cylinder body is set as a gas cylinder, and the first cylinder body and the second cylinder body are used in combination.

[0007] As an optional solution for a fast injection cylinder of an injection molding machine described in the utility model, wherein: a thread groove is opened at the end of the first cylinder body, and a thread head is connected to the end of the second cylinder body, and the thread head is threadably engaged with the thread groove.

[0008] As an optional solution for a fast injection cylinder of an injection molding machine described in the utility model, wherein: an output shaft is commonly inserted into the first cylinder body and the second cylinder body, a first piston disc is sleeved inside the first cylinder body, and a second piston disc is sleeved inside the second cylinder body.

[0009] As an optional solution for a fast injection cylinder of an injection molding machine described in the utility model, wherein: a threaded cavity is opened on the side of the first cylinder body, a mounting groove is opened at the bottom of the threaded groove, and the threaded cavity, the threaded groove and the mounting groove are connected.

[0010] As an optional solution for a fast injection cylinder of an injection molding machine described in the utility model, the locking assembly includes a connecting bolt and an abutment block, the connecting bolt is threadedly engaged with the threaded cavity, and the abutment block is arranged inside the mounting groove.

[0011] As an optional solution for a fast injection cylinder of an injection molding machine described in the utility model, wherein: a moving rod is connected to the bottom of the resistance block, a return spring is sleeved on the outer side of the moving rod, the other end of the moving rod is connected to a piston disc body, and an airflow chamber is connected to the bottom of the installation groove.

[0012] As an optional solution for a fast injection cylinder of an injection molding machine described in the utility model, wherein: a locking ball is connected to the end of the airflow cavity, a locking groove is opened on the inner wall of the second cylinder body, and the locking ball is slidably engaged with the locking groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. The fast injection oil cylinder of the injection molding machine, through the setting of the locking assembly, the second cylinder body is threadedly connected to the end of the first cylinder body, and then the connecting bolt is threadedly connected inside the threaded cavity. The connecting bolt squeezes the abutment block, the moving rod and the reset spring, so that the piston disc body slides inside the installation groove, and the gas inside the installation groove flows to the snap-in ball. The snap-in ball and the snap-in groove slide and snap-in to ensure that the connection parts will not loosen during operation, improve the reliability and stability of the system, and solve the problem that the connection of the fast injection oil cylinder of the injection molding machine will be affected by machine vibration and hydraulic shock during the operation of the equipment, especially during high-speed injection. If the design of the connector or accessories is unreasonable or the material does not meet the requirements, it may cause the connection to become loose or damaged.

[0015] 2. The fast injection cylinder of the injection molding machine is provided with a first cylinder body and a second cylinder body. The first cylinder body cooperates with the second cylinder body. Through the linkage effect of the first cylinder body and the second cylinder body, the movement speed of the output shaft can be increased. It is suitable for applications that require fast movement. Through the double-layer threaded connection, a stable connection is achieved between the first cylinder body and the second cylinder body, and the effect of the locking component is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the cutaway structure of the utility model.

[0018] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram of FIG.

[0019] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at B.

[0020] In the figure: 110, first cylinder body; 111, threaded groove; 112, output shaft; 113, first piston disc; 120, second cylinder body; 121, threaded head; 122, second piston disc; 130, locking assembly; 131, connecting bolt; 132, abutment block; 133, moving rod; 134, return spring; 135, piston disc body; 140, threaded cavity; 141, mounting groove; 142, air flow cavity; 143, snap ball; 144, snap groove. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] Embodiment 1: This embodiment is intended to help solve the problem that the connection of the fast injection cylinder of the injection molding machine will be affected by machine vibration and hydraulic shock during the operation of the equipment, especially during high-speed injection. If the connection or accessories are not designed reasonably or the material does not meet the requirements, it may cause the connection to become loose or damaged. Please refer to Figure 1-4 A fast injection cylinder of an injection molding machine includes a first cylinder body 110 and a second cylinder body 120. The second cylinder body 120 is detachably mounted on the end of the first cylinder body 110. A locking assembly 130 is mounted between the first cylinder body 110 and the second cylinder body 120. The locking assembly 130 cooperates with the first cylinder body 110 and the second cylinder body 120 for use. An oil inlet hole and an oil outlet hole are respectively opened on the side of the first cylinder body 110, and an air inlet hole and an air outlet hole are respectively opened on the side of the second cylinder body 120.

[0023] The first cylinder body 110 is configured as an oil cylinder, and the second cylinder body 120 is configured as a gas cylinder. The first cylinder body 110 and the second cylinder body 120 are used in cooperation with each other.

[0024] A thread groove 111 is formed at the end of the first cylinder body 110 , and a thread head 121 is connected to the end of the second cylinder body 120 . The thread head 121 is threadably engaged with the thread groove 111 .

[0025] An output shaft 112 is inserted into the first cylinder body 110 and the second cylinder body 120 . A first piston disc 113 is sleeved in the first cylinder body 110 , and a second piston disc 122 is sleeved in the second cylinder body 120 .

[0026] A threaded cavity 140 is defined at the side of the first cylinder body 110 , and a mounting groove 141 is defined at the bottom of the threaded groove 111 . The threaded cavity 140 , the threaded groove 111 and the mounting groove 141 are connected to each other.

[0027] The locking assembly 130 includes a connecting bolt 131 and a resisting block 132 . The connecting bolt 131 is threadedly engaged with the threaded cavity 140 , and the resisting block 132 is disposed inside the mounting groove 141 .

[0028] A moving rod 133 is connected to the bottom of the abutment block 132 , a return spring 134 is sleeved on the outer side of the moving rod 133 , and the other end of the moving rod 133 is connected to a piston disc body 135 . An airflow cavity 142 is connected to the bottom of the installation groove 141 .

[0029] A locking ball 143 is connected to the end of the air flow cavity 142 , and a locking groove 144 is formed on the inner wall of the second cylinder body 120 . The locking ball 143 is slidably engaged with the locking groove 144 .

[0030] In this embodiment: through the setting of the locking assembly 130, the second cylinder body 120 is threadedly connected to the end of the first cylinder body 110, and then the connecting bolt 131 is threadedly connected inside the threaded cavity 140. The connecting bolt 131 squeezes the abutment block 132, the moving rod 133 and the reset spring 134, so that the piston disc body 135 slides inside the installation groove 141, and the gas inside the installation groove 141 flows to the snap-in ball 143. The snap-in ball 143 and the snap-in groove 144 slide and snap to ensure that the connection parts will not loosen during operation, improve the reliability and stability of the system, and solve the problem that the connection of the fast injection cylinder of the injection molding machine will be affected by machine vibration and hydraulic shock during the connection of the equipment, especially during high-speed injection. If the design of the connector or accessories is unreasonable or the material does not meet the requirements, it may cause the connection to become loose or damaged.

[0031] Embodiment 2: This embodiment is intended to promote the solution to the problem of loose engagement. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-4 A thread groove 111 is provided at the end of the first cylinder body 110, and a thread head 121 is connected to the end of the second cylinder body 120. The thread head 121 is threadedly engaged with the thread groove 111. A thread cavity 140 is provided on the side of the first cylinder body 110, and a mounting groove 141 is provided at the bottom of the thread groove 111. The thread cavity 140, the thread groove 111 and the mounting groove 141 are connected.

[0032] In the present embodiment: by configuring the first cylinder body 110 and the second cylinder body 120, the first cylinder body 110 cooperates with the second cylinder body 120, and the movement speed of the output shaft 112 can be increased through the linkage effect of the first cylinder body 110 and the second cylinder body 120, which is suitable for applications requiring fast movement. Through the double-layer threaded connection, a stable connection is achieved between the first cylinder body 110 and the second cylinder body 120, and the effect of the locking assembly 130 is improved.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fast injection cylinder of an injection molding machine, comprising a first cylinder body (110) and a second cylinder body (120), wherein the second cylinder body (120) is detachably mounted on an end of the first cylinder body (110), characterized in that: A locking assembly (130) is installed between the first cylinder body (110) and the second cylinder body (120). The locking assembly (130) cooperates with the first cylinder body (110) and the second cylinder body (120) for use. A threaded cavity (140) is provided on the side of the first cylinder body (110); A thread groove (111) is formed at the end of the first cylinder body (110), and a mounting groove (141) is formed at the bottom of the thread groove (111); The locking assembly (130) comprises a connecting bolt (131) and a resisting block (132), wherein the connecting bolt (131) is threadedly engaged with the threaded cavity (140), and the resisting block (132) is arranged inside the mounting groove (141); The bottom of the abutment block (132) is connected to a moving rod (133), the outer side of the moving rod (133) is sleeved with a return spring (134), the other end of the moving rod (133) is connected to a piston disc body (135), and the bottom of the mounting groove (141) is connected to an airflow cavity (142); The end of the airflow cavity (142) is connected to a snap-fit ​​ball (143), the inner wall of the second cylinder body (120) is provided with a snap-fit ​​groove (144), and the snap-fit ​​ball (143) is slidably snap-fitted with the snap-fit ​​groove (144).

2. The fast injection cylinder of an injection molding machine according to claim 1, characterized in that: The first cylinder body (110) is configured as an oil cylinder, the second cylinder body (120) is configured as a gas cylinder, and the first cylinder body (110) and the second cylinder body (120) are used in conjunction with each other.

3. The fast injection cylinder of an injection molding machine according to claim 1, characterized in that: A threaded head (121) is connected to the end of the second cylinder body (120), and the threaded head (121) is threadably engaged with the threaded groove (111).

4. The fast injection cylinder of an injection molding machine according to claim 1, characterized in that: An output shaft (112) is inserted into the first cylinder body (110) and the second cylinder body (120) together; a first piston disc (113) is sleeved in the first cylinder body (110) and a second piston disc (122) is sleeved in the second cylinder body (120).

5. The fast injection cylinder of an injection molding machine according to claim 3, characterized in that: The threaded cavity (140), the threaded groove (111) and the mounting groove (141) are arranged in communication.

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