A mounting structure for a barrel of an injection molding machine

Abstract

The present invention relates to the technical field of injection molding machines, and discloses a mounting structure of an injection molding machine barrel, wherein the barrel has a first limiting portion and a second limiting portion, and the mounting structure comprises: a machine base, wherein a mounting hole for inserting a feeding barrel is provided on the machine base, and the feeding barrel can be connected with the first limiting portion; a first locking member, wherein the first locking member is arranged on the second limiting portion, and the first locking member is provided with a first inclined surface; a second locking member, wherein one side of the second locking member is in contact with the first inclined surface, and the other side is connected with the machine base; and the second locking member can move along the radial direction of the barrel to drive the machine base to connect with the first limiting portion. The advantage of the present invention is that when the second locking member moves toward the barrel, the direction of the force is changed by the inclined surface, and the barrel is driven to move toward the front end, so that the machine base and the clamping ring are tightly pressed together, and the installation of the barrel is completed, the installation process is simple, and the fixing effect is good. Compared with the prior art, the pre-tightening force of the mounting structure is less difficult to apply, the controllability is strong, and the subsequent disassembly is less difficult.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to an installation structure of a barrel of an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics; it is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and make it eject and fill the mold cavity.

[0003] At present, the barrel of an injection molding machine is mainly installed and fixed by a nut at the end of the barrel. It is difficult to apply pre-tightening force when using the nut for installation, and the size of the pre-tightening force is difficult to control; and although an anti-loosening structure is provided, the installation process is time-consuming and inefficient, and the nut is difficult to disassemble after long-term use. Summary of the invention

[0004] The present invention is made in consideration of the above-mentioned problems, and the purpose of the invention is to provide an installation structure for an injection molding machine barrel, which is convenient for applying a pre-tightening force during the installation process, and the pre-tightening force is highly controllable, and it is easy to disassemble after long-term use.

[0005] To achieve the above object, the present invention provides a mounting structure of a barrel of an injection molding machine, wherein the barrel has a first limiting portion and a second limiting portion, and the mounting structure comprises:

[0006] A machine base, wherein the machine base is provided with a mounting hole for inserting the barrel and can be connected with the first limiting portion;

[0007] A first locking member, wherein the first locking member is disposed on the second limiting portion and has a first inclined surface;

[0008] A second locking member, one side of the second locking member is in contact with the first inclined surface, and the other side is connected with the machine base; the second locking member can move along the radial direction of the barrel to drive the machine base to connect with the first limiting portion.

[0009] According to the above-mentioned installation structure of the barrel of an injection molding machine, when the first locking member moves in a direction close to the barrel, the machine base moves in a direction close to the first limiting portion.

[0010] According to the above-mentioned installation structure of the injection molding machine barrel, the first locking member is set as a first wedge block, the first inclined surface is arranged on the first wedge block, the second locking member is set as a second wedge block, the second wedge block is provided with a second inclined surface, the first inclined surface is fitted with the second inclined surface, and the side of the second wedge block away from the first wedge block is connected to the machine base.

[0011] According to the above-mentioned installation structure of the barrel of an injection molding machine, a pressing block is provided on the second wedge block, and the pressing block is connected to the machine base through bolts.

[0012] According to the above-mentioned installation structure of the injection molding machine barrel, the length of the pressing block is greater than the length of the second wedge block, and a bolt is provided at both ends of the pressing block, and the two bolts pass through the two ends of the pressing block and connect with the machine base respectively.

[0013] According to the above-mentioned installation structure of the barrel of an injection molding machine, the second wedge is connected to the machine base through bolts.

[0014] According to the above-mentioned installation structure of the barrel of an injection molding machine, the angle between the first inclined surface and the vertical surface is between 6° and 10°.

[0015] According to the above-mentioned installation structure of the barrel of an injection molding machine, a pin hole is provided on the barrel, a pin is provided in the pin hole, and one end of the pin away from the barrel is connected to the machine base.

[0016] According to the above-mentioned installation structure of the barrel of an injection molding machine, a groove is provided on the barrel, the groove has a bottom surface, a cooling water jacket is provided on the bottom surface, and the second limiting portion is arranged on the cooling water jacket; the cooling water jacket is arranged in the groove and fixedly connected to the machine base.

[0017] According to the above-mentioned installation structure of the injection molding machine barrel, the barrel is also provided with a clamping ring, the first limiting portion is arranged on the clamping ring, the barrel is provided with a clamping groove, and the machine base has a milling surface; the clamping ring is clamped in the clamping groove and can abut against the milling surface.

[0018] The present invention has the following beneficial effects:

[0019] 1. When the second wedge moves toward the direction close to the barrel, the inclined surface can change the direction of the force, driving the barrel to move toward the front end, so that the base and the clamping ring are tightly pressed together to complete the installation of the barrel. The installation process is simple and the fixing effect is good. Compared with the prior art, the pre-tightening force of the installation structure is less difficult to apply, the controllability is strong, and after long-term use, the disassembly is less difficult;

[0020] 2. A pressure block is provided on the second wedge block, which can prevent the second wedge block from popping out;

[0021] 3. The pressing block is connected to the machine base through bolts. By turning the bolts, the second wedge block can be driven to move. The process of applying force is simple and convenient.

[0022] 4. There is a bolt at both ends of the pressing block. By repeatedly rotating the bolts at both ends of the pressing block, the force on the second wedge block is more uniform, thereby making the force on the first wedge block more uniform;

[0023] 5. The angle between the first inclined surface and the vertical surface is between 6° and 10°. After the second wedge is inserted between the first wedge and the machine base and the barrel is fixed, the first wedge and the second wedge have a self-locking function and the second wedge will not pop out automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 yes Figure 1 A top view of

[0026] Figure 3 yes Figure 1 A cross-sectional view of

[0027] Figure 4 is a cross-sectional view of a barrel of the present invention;

[0028] Figure 5 It is a schematic diagram of the connection between the first wedge block, the second wedge block and the pressing block of the present invention;

[0029] In the figure: 1, machine base; 11, milling surface; 2, first locking piece; 21, first wedge block; 211, first inclined surface; 3, second locking piece; 31, second wedge block; 311, second inclined surface; 312, pressing block; 313, bolt; 4, barrel; 41, pin hole; 42, groove; 421, bottom surface; 43, cooling water jacket; 44, retaining ring; 45, slot; 46, injection nozzle. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] The mounting structure of the solution of the present invention is used for mounting the barrel of an injection molding machine, and has a simple mounting process, good fixing effect, low difficulty in applying the pre-tightening force, strong controllability, and low difficulty in subsequent disassembly. Specific embodiment one:

[0033] like Figure 1-5 As shown, a mounting structure of a barrel 4 of an injection molding machine is used to mount the barrel 4 of the injection molding machine. The barrel 4 has a first limiting portion and a second limiting portion. The mounting structure includes a machine base 1, a first locking member 2 and a second locking member 3.

[0034] like Figure 3As shown, the machine base 1 is provided with a mounting hole for inserting the feed barrel 4, and can be connected with the first limiting portion; the first locking member 2 is arranged on the second limiting portion, and the first locking member 2 is provided with a first inclined surface 211; one side of the second locking member 3 is in contact with the first inclined surface 211, and the other side is connected with the machine base 1; the second locking member 3 can move along the radial direction of the barrel 4 to drive the machine base 1 to connect with the first limiting portion. When the second locking member 3 moves along the radial direction of the barrel 4, the second locking member 3 will apply a force along the radial direction of the barrel 4 to the first locking member 2, and the force is converted into a force along the axial direction of the barrel 4 through the first inclined surface 211, so as to drive the machine base 1 to move in the direction close to the first limiting portion, and the machine base 1 and the first limiting portion are tightly pressed together to complete the installation of the barrel 4. The installation process is simple, and the fixing effect of the barrel 4 is good. Compared with the prior art, the pre-tightening force of the installation structure is less difficult to apply, the controllability is strong, and the subsequent disassembly is less difficult.

[0035] When the first locking member 2 moves toward the direction close to the barrel 4, the base 1 moves toward the direction close to the first limiting portion; when installing the barrel 4, only a pushing force needs to be applied to move the first locking member 2 toward the direction close to the barrel 4 to drive the base 1 to abut against the first limiting portion, thereby completing the installation of the barrel 4, and the installation process is simple.

[0036] The first locking member 2 is configured as a first wedge block 21, and the first inclined surface 211 is disposed on the first wedge block 21. The second locking member 3 is configured as a second wedge block 31, and the second wedge block 31 is provided with a second inclined surface 311. The first inclined surface 211 fits with the second inclined surface 311, and the side of the second wedge block 31 away from the first wedge block 21 is connected to the machine base 1. The force applied by the second wedge block 31 to the first wedge block 21 along the radial direction of the barrel 4 can be converted into a force along the axial direction of the barrel 4 through the inclined surface, so as to drive the machine base 1 to move in the direction close to the first limiting portion and connect with the first limiting portion, thereby completing the installation of the barrel 4. It only needs to apply a force along the radial direction of the barrel 4 on the second wedge block 31 to complete the installation of the barrel 4, and the installation is simple and convenient.

[0037] A pressing block 312 is provided on the second wedge block 31, and the pressing block 312 is connected to the machine base 1 through a bolt 313; and the pressing block 312 can slide relative to the second wedge block 31, and by rotating the bolt 313, the pressing block 312 moves toward the direction close to the barrel 4, which can drive the second wedge block 31 to move. The process of applying force is simple and convenient, and the pressing block 312 is connected to the barrel 4 through the bolt 313, which has the characteristics of simple structure, reliable connection and easy disassembly.

[0038] The length of the pressing block 312 is greater than that of the second wedge block 31, and a bolt 313 is provided at both ends of the pressing block 312, and the two bolts 313 pass through the two ends of the pressing block 312 and connect with the machine base 1. By repeatedly rotating the bolts 313 at both ends of the pressing block 312, the forces on both ends of the second wedge block 31 are roughly the same, so that the force transferred to the first wedge block 21 through the inclined surface is more evenly distributed, which can ensure the fixing effect of the installation structure and avoid the instability of the first wedge block 21 due to uneven force; and the length of the pressing block 312 is greater than that of the second wedge block 31, which can avoid structural interference and facilitate the connection of the bolts 313 with the machine base 1.

[0039] The angle between the first inclined surface 211 and the vertical surface is between 6° and 10°; when the inclination angle of the inclined surface of the wedge block is between 6° and 10°, after the second wedge block 31 is inserted between the first wedge block 21 and the machine base 1 and the barrel 4 is fixed, the first wedge block 21 and the second wedge block 31 have a self-locking function, and the second wedge block 31 will not pop out automatically, which can ensure the stability of the installation of the barrel 4, and the setting of the pressing block 312 can prevent the second wedge block 31 from popping out when the self-locking fails; and in this embodiment, in order to facilitate subsequent disassembly, a bolt hole is provided on the second wedge block 31, and the bolt is subsequently screwed into the bolt hole to apply a pulling force to drive the second wedge block 31 to move in a direction away from the barrel 4, which simplifies the disassembly process of the wedge block and reduces the difficulty of disassembly.

[0040] The barrel 4 is provided with a pin hole 41 in which a pin is arranged. One end of the pin away from the barrel 4 is connected to the machine base 1 . The pin can prevent the barrel 4 and the machine base 1 from rotating relative to each other, thereby ensuring the stability of the position of the barrel 4 .

[0041] The barrel 4 is provided with a groove 42, and the groove 42 has a bottom surface 421, and a cooling water jacket 43 is provided on the bottom surface 421, and the second limit portion is arranged on the cooling water jacket 43; the cooling water jacket 43 is arranged in the groove 42, and is fixedly connected to the machine base 1. Among them, the cooling water jacket 43 is first bolted to the barrel 4, and then bolted to the machine base 1 after being installed in place. The cooling water jacket 43 can take away the heat of the barrel 4 and cool the barrel 4; installing the cooling water jacket 43 in the groove 42 of the barrel 4 makes the installation structure more compact, and the bottom surface 421 of the groove 42 is a plane, and the cooling water jacket 43 is installed on a plane, and the installation stability is good.

[0042] The barrel 4 is also provided with a clamping ring 44, the first limit portion is arranged on the clamping ring 44, the barrel 4 is provided with a clamping groove 45, and the machine base 1 has a milling surface 11; the clamping ring 44 is clamped in the clamping groove 45 and can abut against the milling surface 11. The position of the machine base 1 is limited by the clamping ring 44, and its structure is simple and easy to install. The machine base 1 is a casting with an uneven surface. By machining a milling surface 11 on the machine base 1, the abutting surface between the clamping ring 44 and the machine base 1 is made smoother; in this embodiment, the clamping ring 44 can be replaced by a nut.

[0043] The installation process of the barrel 4 (the end of the barrel 4 with the injection nozzle 46 is the front end, and the other end is the rear end) is as follows: first, install the cooling water jacket 43 into the groove 42 of the barrel 4, then insert the barrel 4 into the installation hole of the barrel, and use bolts to fix the cooling water jacket 43 and the machine base 1 together, and then install a clamping ring 44 at the rear end of the barrel 4, and the clamping ring 44 can limit the movement of the machine base 1 toward the rear end of the barrel 4; then put down the first wedge 21, and put the second wedge 31 Insert it between the first wedge block 21 and the machine base 1; by repeatedly tightening the bolts 313 at both ends of the pressure plate, the second wedge block 31 is driven to move in the direction close to the barrel 4, and then the force along the radial direction of the barrel 4 is converted into the force along the axial direction of the barrel 4 through the inclined surfaces on the first wedge block 21 and the second wedge block 31, driving the barrel 4 to move toward the front end (that is, the machine base 1 moves toward the rear end of the barrel 4), thereby pressing the retaining ring 44 and the machine base 1 tightly together to complete the installation of the barrel 4. Specific embodiment 2:

[0045] The difference between the installation structure in this embodiment and the solution of embodiment 1 is mainly reflected in that in this solution, the pressure block 312 structure on the second wedge block 31 is cancelled, and a bolt hole is added to the second wedge block 31. The bolt 313 passes through the bolt hole of the second wedge block 31 and is connected to the base 1. Other identical structures are not described here in detail.

[0046] Specifically, the second wedge block 31 is connected to the machine base 1 by bolts. By rotating the bolts on the second wedge block 31, the second wedge block 31 moves toward the direction close to the barrel 4, and applies a thrust in the radial direction of the barrel 4 to the first wedge block 21 through the conversion of the inclined surface, driving the barrel 4 to move toward the front end, pressing the retaining ring 44 and the machine base 1 tightly together, and completing the installation of the barrel 4.

[0047] A bolt is provided at both ends of the second wedge block 31, and the two bolts pass through the two ends of the second wedge block 31 and connect with the barrel 4. In the process of rotating the bolts, the bolts at both ends of the second wedge block 31 are repeatedly rotated to make the force on the second wedge block 31 more uniform, so that the force on the first wedge block 21 is more uniform.

[0048] The present invention provides a mounting structure of a barrel 4 of an injection molding machine, which is used for mounting the barrel 4 of the injection molding machine. The barrel 4 is provided with a cooling water jacket 43 and a retaining ring 44. The mounting structure comprises a machine base 1, a first wedge block 21 and a second wedge block 31. The machine base 1 is provided with a mounting hole for inserting the barrel 4, and can abut against the retaining ring 44. The first wedge block 21 is arranged on the cooling water jacket 43, and a first inclined surface 211 is provided on the first wedge block 21. One side of the second wedge block 31 is in contact with the first inclined surface 211, and the other side is connected to the machine base 1. The second wedge block 31 can move along the radial direction of the barrel 4 to drive the machine base 1 to abut against the retaining ring 44. When the second wedge block 31 moves toward the direction approaching the barrel 4, the force along the radial direction of the barrel 4 is converted into an axial force through the first inclined surface 211, driving the barrel 4 to move toward the front end, so that the machine base 1 and the retaining ring 44 are tightly pressed together, and the installation of the barrel 4 is completed. The installation process is simple and the fixing effect of the barrel 4 is good. Compared with the prior art, the pre-tightening force of the installation structure is less difficult to apply, the controllability is strong, and the subsequent disassembly is less difficult.

[0049] The technical solution of the present invention is described in detail above in conjunction with the accompanying drawings, and the described embodiments are used to help understand the concept of the present invention. The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art of the invention may make various modifications or supplements to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.

[0050] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An installation structure for a barrel of an injection molding machine, wherein the barrel has a first limiting portion and a second limiting portion, characterized in that: The mounting structure includes: A machine base, wherein the machine base is provided with a mounting hole for inserting the barrel and can be connected with the first limiting portion; A first locking member, wherein the first locking member is disposed on the second limiting portion and has a first inclined surface; a second locking member, one side of which is in contact with the first inclined surface, and the other side of which is in contact with the machine base; the second locking member can move along the radial direction of the barrel to drive the machine base to contact with the first limiting portion; The first locking member is configured as a first wedge block, the first inclined surface is arranged on the first wedge block, the second locking member is configured as a second wedge block, the second wedge block is provided with a second inclined surface, the first inclined surface is fitted with the second inclined surface, and a side of the second wedge block away from the first wedge block is connected to the machine base; The barrel is provided with a groove, the groove has a bottom surface, a cooling water jacket is provided on the bottom surface, and the second limiting portion is provided on the cooling water jacket; the cooling water jacket is provided in the groove and fixedly connected to the machine base; The barrel is also provided with a clamping ring, the first limiting portion is arranged on the clamping ring, the barrel is provided with a clamping groove, and the machine base has a milling surface; the clamping ring is clamped in the clamping groove and can abut against the milling surface.

2. The installation structure of the barrel of an injection molding machine according to claim 1, characterized in that: When the first locking member moves toward the direction approaching the barrel, the base moves toward the direction approaching the first limiting portion.

3. The installation structure of the barrel of an injection molding machine according to claim 1, characterized in that: The second wedge block is provided with a pressing block, and the pressing block is connected to the machine base through bolts.

4. The installation structure of the barrel of an injection molding machine according to claim 3, characterized in that: The length of the pressing block is greater than the length of the second wedge block, and a bolt is provided at both ends of the pressing block. The two bolts pass through the two ends of the pressing block and are connected to the machine base.

5. The installation structure of the barrel of an injection molding machine according to claim 1, characterized in that: The second wedge is connected to the machine base through bolts.

6. The installation structure of the barrel of an injection molding machine according to claim 1, characterized in that: The included angle between the first inclined surface and the vertical surface is between 6° and 10°.

7. The installation structure of the barrel of an injection molding machine according to claim 1, characterized in that: The barrel is provided with a pin hole, in which a pin is arranged, and one end of the pin away from the barrel is connected to the machine base.

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