Compact injection molding machine

Abstract

The utility model discloses a compact injection molding machine. The compact injection molding machine comprises a base, an injection molding unit and a mold clamping unit, a guide rail extending left and right is arranged at the left end of the base; a fixed mold plate is arranged on the right side of the guide rail; the injection molding unit comprises an injection molding mechanism and a first driving mechanism; the die clamping unit is arranged at the right end of the machine base and located on the right side of the fixed die plate. The die clamping unit comprises a base body, a movable die plate, a fixing frame, a crank mechanism and a second driving mechanism. The fixing frame is arranged between the movable mold plate and the seat body, the second driving mechanism is arranged on the fixing frame in a matched mode, the driving end of the driving mechanism is connected with the movable mold plate and drives the movable mold plate to move left and right in a reciprocating mode, compared with a traditional injection molding machine, the driving mechanism is arranged on the fixing frame instead of the rear end of a machine body, and the length of the injection molding machine is effectively shortened; and moreover, the folding surface of the toggle mechanism is outward, so that when the mold opening stroke is prolonged, whether the toggle space has enough space for temporarily storing the connecting rod does not need to be considered, and the whole injection molding machine is more compact.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, in particular to a compact injection molding machine. Background Art

[0002] Injection molding machine is also known as injection molding machine or injection machine. Many factories call it beer machine, and injection products are called beer parts. It is the main molding equipment that uses plastic molding movable templates to make plastic products of various shapes from thermoplastics or thermosetting materials. It has fast production speed, high efficiency, automatic operation, and precise product size. It is very suitable for mass production and molding processing fields such as complex-shaped products. With the rapid development of the plastics industry today, injection molding machines occupy an important position in terms of quantity and variety. It has become one of the fastest growing and most produced models in plastic machinery, and is widely used in national defense, electromechanics, automobiles, transportation, building materials, packaging, agriculture, culture, education, health and people's daily life. Injection molding machines can be divided into vertical, horizontal and vertical-horizontal composite types according to the arrangement of the injection device and the clamping device.

[0003] The existing injection molding machines are long in length and overall size, and they occupy too much factory area. The reason is that the clamping stroke of the clamping unit of the injection molding machine is long. The long clamping stroke requires the toggle mechanism to be equipped with a long connecting rod, and its internal space must also be correspondingly increased to temporarily store the connecting rod when the mold is opened. If the integration of the injection molding machine can be improved, the structure of the injection molding machine can be made more compact and occupy less space, it will not only facilitate the transportation of the injection molding machine, but also allow users to set up more injection molding machines in the same space for production, and provide more options in the design of the production line. Therefore, it is necessary to improve the existing injection molding machine. Utility Model Content

[0004] In view of this, the present invention aims to solve the deficiencies in the prior art, and its main purpose is to provide a compact injection molding machine, which can effectively solve the problem that the existing injection molding machines are long and occupy too much factory area.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A compact injection molding machine comprises a base, an injection unit and a mold clamping unit;

[0007] The left end of the machine base is provided with a guide rail extending left and right, and the right side of the guide rail is provided with a fixed mold plate, and the fixed mold plate has a mold cavity;

[0008] The injection molding unit comprises an injection molding mechanism and a first driving mechanism. The injection molding mechanism can be mounted on the guide rail so as to move back and forth left and right. The first driving mechanism is arranged at the left end of the machine base and drives the injection molding mechanism to move back and forth left and right on the guide rail.

[0009] The clamping unit is arranged at the right end of the machine base and is located on the right side of the fixed mold plate. The clamping unit includes a base body, a movable mold plate, a fixed frame, an elbow mechanism and a second driving mechanism; guide columns are arranged at the four corners of the base body, and the four guide columns form an elbow space; the movable mold plate can be reciprocated and passed through the four guide columns; the fixed frame is passed through the four guide columns and is located between the movable mold plate and the base body; the elbow mechanism is arranged in the elbow space, one end of the elbow mechanism is axially connected to the base body, and the other end of the elbow mechanism is in contact with the back of the movable mold plate; the second driving mechanism is arranged on the fixed frame, and the driving end of the second driving mechanism is connected to the movable mold plate and drives the movable mold plate to reciprocate left and right, thereby driving the elbow mechanism to open or close.

[0010] As a preferred solution, the first driving mechanism is a motor.

[0011] As a preferred solution, the other end of the toggle mechanism abuts against the middle position of the back side of the movable template.

[0012] As a preferred solution, an abutment portion extends backward from the middle portion of the back side of the movable template, and the other end of the toggle mechanism abuts against the abutment portion.

[0013] As a preferred solution, there are two second driving mechanisms, and the two second driving mechanisms are respectively arranged on the left and right sides of the fixing frame.

[0014] As a preferred solution, the second driving mechanism is a cylinder.

[0015] As a preferred embodiment, it further includes an adjustment mechanism, which includes four first gears and one second gear. The four first gears are respectively screwed with the rear ends of the four guide pillars. The four first gears each have a plurality of first tooth portions. The second gear is arranged on the seat body. The second gear has a plurality of second tooth portions. The second tooth portions are matched with the first tooth portions. The second gear is meshed with the four first gears.

[0016] As a preferred embodiment, the toggle mechanism includes a first connecting rod, a second connecting rod, a movable wall and a third connecting rod; one end of the first connecting rod is axially connected to the base body, one end of the second connecting rod is axially connected to the other end of the first connecting rod, one end of the movable wall is axially connected to the other end of the second connecting rod, the other end of the movable wall abuts against the back of the movable template, one end of the third connecting rod is axially connected to the middle part of the second connecting rod, and the other end of the third connecting rod is axially connected to the fixed frame; when the second driving mechanism drives the movable template to move forward, the first connecting rod closes inward and the second connecting rod opens outward, so that the first connecting rod and the second connecting rod are parallel to the horizontal plane, and the movable wall moves forward; when the second driving mechanism drives the movable template to move backward, the first connecting rod opens outward, the second connecting rod closes inward, and the movable wall moves backward.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0018] By setting a fixed frame between the movable template and the base body, and then setting the second driving mechanism on the fixed frame, the driving end of the driving mechanism is connected to the movable template and drives the movable template to move back and forth left and right. Compared with the traditional injection molding machine, its driving mechanism is set on the fixed frame instead of the rear end of the machine body, which effectively shortens the length of the injection molding machine; and, the folding surface of the elbow mechanism is outward, and when extending the mold opening stroke, there is no need to consider whether there is enough space in the elbow space for temporarily storing the connecting rod, making the injection molding machine more compact as a whole.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the injection molding unit in the preferred embodiment of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the clamping unit in the preferred embodiment of the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of another angle of the clamping unit in the preferred embodiment of the utility model;

[0024] Figure 5 It is a partial assembly diagram of the clamping unit in the preferred embodiment of the utility model.

[0025] Description of the accompanying drawings:

[0026] 10. Base 11. Guide rail

[0027] 12. Fixed mold plate 121, cavity

[0028] 20. Injection unit 21. Injection mechanism

[0029] 22. First driving mechanism 30. Clamping unit

[0030] 301, elbow space 31, seat

[0031] 311, guide column 32, moving template

[0032] 321, abutment portion 33, fixing frame

[0033] 34. Toggle mechanism 341. First connecting rod

[0034] 342, second connecting rod 343, movable wall

[0035] 344, third connecting rod 35, second driving mechanism

[0036] 40. Adjustment mechanism 41. First gear

[0037] 411, first tooth portion 42, second gear

[0038] 421. Second tooth portion. DETAILED DESCRIPTION

[0039] Please refer to Figures 1 to 5 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a base 10, an injection unit 20 and a clamping unit 30.

[0040] A guide rail 11 extending leftward and rightward is disposed at the left end of the machine base 10 , a fixed mold plate 12 is disposed on the right side of the guide rail 11 , and a mold cavity 121 is formed on the fixed mold plate 12 .

[0041] The injection unit 20 includes an injection mechanism 21 and a first drive mechanism 22. The injection mechanism 21 can be installed on the guide rail 11 for left and right reciprocating movement. The first drive mechanism 22 is arranged at the left end of the machine base 10 and drives the injection mechanism 21 to move back and forth on the guide rail 11. In this embodiment, the first drive mechanism 22 is a motor.

[0042] The clamping unit 30 is arranged at the right end of the machine base 10 and is located on the right side of the fixed mold plate 12. The clamping unit 30 includes a base 31, a movable mold plate 32, a fixed frame 33, a toggle mechanism 34 and a second driving mechanism 35; the base 31 is provided with guide pillars 311 at the four corners, and the four guide pillars 311 are surrounded to form an toggle space 301; the movable mold plate 32 can be movably passed through the four guide pillars 311; the fixed frame 33 is passed through the four guide pillars 311 and is located between the movable mold plate 32 and the base 31; the toggle mechanism 34 is arranged in the toggle space 301, and the One end of the toggle mechanism 34 is axially connected to the base body 31, and the other end of the toggle mechanism 34 abuts against the back of the movable template 32; the second driving mechanism 35 is arranged on the fixed frame 33, and the driving end 351 of the second driving mechanism 35 is connected to the movable template 32 and drives the movable template 32 to move back and forth left and right, thereby driving the toggle mechanism 34 to open or close; in the present embodiment, the other end of the toggle mechanism 34 abuts against the middle position of the back of the movable template 32, specifically, the middle position of the back of the movable template 32 extends backward with an abutting portion 321, and the other end of the toggle mechanism 34 abuts against the abutting portion 321. The contact part 321 abuts against the contact part 321; in addition, there are two second drive mechanisms 35, which are respectively arranged on the left and right sides of the fixed frame 33, and the second drive mechanisms 35 are oil cylinders; and the toggle mechanism 34 includes a first connecting rod 341, a second connecting rod 342, a movable wall 343 and a third connecting rod 344; one end of the first connecting rod 341 is axially connected to the seat body 31, one end of the second connecting rod 342 is axially connected to the other end of the first connecting rod 341, one end of the movable wall 343 is axially connected to the other end of the second connecting rod 342, and the other end of the movable wall 343 is axially connected to the movable template 32, one end of the third connecting rod 344 is axially connected to the middle part of the second connecting rod 342, and the other end of the third connecting rod 344 is axially connected to the fixed frame 33; when the second driving mechanism 35 drives the movable template 32 to move forward, the first connecting rod 341 closes inwardly, and the second connecting rod 342 opens outwardly, so that the first connecting rod 341 and the second connecting rod 342 are parallel to the horizontal plane, and the movable wall 343 moves forward; when the second driving mechanism 35 drives the movable template 32 to move backward, the first connecting rod 341 opens outwardly, the second connecting rod 342 closes inwardly, and the movable wall 343 moves backward.

[0043] And, it further includes an adjustment mechanism 40, which includes four first gears 41 and a second gear 42. The four first gears 41 are respectively screwed with the rear ends of the four guide pillars 311, and the four first gears 41 have a plurality of first tooth portions 411. The second gear 42 is arranged on the seat body 31, and the second gear 42 has a plurality of second tooth portions 421. The second tooth portions 421 are adapted to the first tooth portions 411, and the second gear 421 is meshed with the four first gears 411. The four first gears 41 are respectively screwed with the rear ends of the four guide pillars 311, and the distance that the four guide pillars 311 extend forward from the seat body 31 is adjusted at the same time, which is more consistent.

[0044] The design focus of the utility model is that a fixing frame is arranged between the movable template and the base body, and then a second driving mechanism is arranged on the fixing frame, and the driving end of the driving mechanism is connected to the movable template and drives the movable template to move back and forth left and right. Compared with the traditional injection molding machine, the driving mechanism is arranged on the fixing frame instead of the rear end of the machine body, which effectively shortens the length of the injection molding machine; and the folding surface of the elbow mechanism is outward, and when the mold opening stroke is extended, there is no need to consider whether there is enough space in the elbow space for temporarily storing the connecting rod, so that the injection molding machine as a whole is more compact.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A compact injection molding machine, characterized in that: It includes a base, an injection unit and a clamping unit; The left end of the machine base is provided with a guide rail extending left and right, and the right side of the guide rail is provided with a fixed mold plate, and the fixed mold plate has a mold cavity; The injection molding unit comprises an injection molding mechanism and a first driving mechanism. The injection molding mechanism can be mounted on the guide rail so as to move back and forth left and right. The first driving mechanism is arranged at the left end of the machine base and drives the injection molding mechanism to move back and forth left and right on the guide rail. The clamping unit is arranged at the right end of the machine base and is located on the right side of the fixed mold plate. The clamping unit includes a base body, a movable mold plate, a fixed frame, an elbow mechanism and a second driving mechanism; guide columns are arranged at the four corners of the base body, and the four guide columns form an elbow space; the movable mold plate can be reciprocated and passed through the four guide columns; the fixed frame is passed through the four guide columns and is located between the movable mold plate and the base body; the elbow mechanism is arranged in the elbow space, one end of the elbow mechanism is axially connected to the base body, and the other end of the elbow mechanism is in contact with the back of the movable mold plate; the second driving mechanism is arranged on the fixed frame, and the driving end of the second driving mechanism is connected to the movable mold plate and drives the movable mold plate to reciprocate left and right, thereby driving the elbow mechanism to open or close.

2. The compact injection molding machine according to claim 1, characterized in that: The first driving mechanism is a motor.

3. The compact injection molding machine according to claim 1, characterized in that: The other end of the toggle mechanism abuts against the middle position of the back side of the movable template.

4. The compact injection molding machine according to claim 3, characterized in that: A contact portion is extended backward from the middle position of the back side of the movable template, and the other end of the toggle mechanism contacts the contact portion.

5. The compact injection molding machine according to claim 1, characterized in that: There are two second driving mechanisms, and the two second driving mechanisms are respectively arranged on the left and right sides of the fixing frame.

6. The compact injection molding machine according to claim 1, characterized in that: The second driving mechanism is a cylinder.

7. The compact injection molding machine according to claim 1, characterized in that: It further includes an adjustment mechanism, which includes four first gears and a second gear. The four first gears are respectively screwed with the rear ends of the four guide pillars. The four first gears each have a plurality of first tooth portions. The second gear is arranged on the seat body. The second gear has a plurality of second tooth portions. The second tooth portions are adapted to the first tooth portions, and the second gear is meshed with the four first gears.

8. The compact injection molding machine according to claim 1, characterized in that: The toggle mechanism includes a first connecting rod, a second connecting rod, a movable wall and a third connecting rod; one end of the first connecting rod is axially connected to the seat body, one end of the second connecting rod is axially connected to the other end of the first connecting rod, one end of the movable wall is axially connected to the other end of the second connecting rod, the other end of the movable wall abuts against the back of the movable template, one end of the third connecting rod is axially connected to the middle part of the second connecting rod, and the other end of the third connecting rod is axially connected to the fixed frame; When the second driving mechanism drives the movable template to move forward, the first connecting rod closes inward and the second connecting rod opens outward, so that the first connecting rod and the second connecting rod are parallel to the horizontal plane, and the movable wall moves forward; when the second driving mechanism drives the movable template to move backward, the first connecting rod opens outward, the second connecting rod closes inward, and the movable wall moves backward.

Images