Feeding device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a feeding device of an injection molding machine. A feeding device of an injection molding machine comprises a feeding hopper, a stirring structure is arranged in the feeding hopper, a stirring motor is arranged on the feeding hopper, the stirring motor is used for driving the stirring structure to be rotationally connected to the feeding hopper, and the stirring structure is connected to the feeding hopper in a positionable reciprocating sliding mode in the vertical direction. The injection molding machine has the following effects that when cosmetic bottles of different sizes and shapes are subjected to injection molding, the height of the stirring structure is adjusted in the vertical direction, so that the height of the stirring structure is matched with the liquid level height of injection molding raw materials in the feeding hopper, and the uniformity of the injection molding raw materials is improved when the cosmetic bottles of different sizes and shapes are subjected to injection molding.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding machines, and in particular to a feeding device for an injection molding machine. Background Art

[0002] Injection molding machines are needed in the development of high-adhesion printing technology for gradient color cosmetic bottles.

[0003] For example, a Chinese utility model patent with authorization announcement number CN212579079U discloses a feeding device for an injection molding machine, which includes a shell, and a hopper is fixedly connected to the upper end of the shell, a driving motor is fixedly connected to the upper surface of the shell, and a vertically arranged stirring rod is fixedly connected to the driving end of the driving motor, and a plurality of inclined stirring blades are fixedly connected to the side wall of the stirring rod.

[0004] Since different cosmetic bottles have different sizes and shapes, different amounts of injection molding materials are required for injection molding of different cosmetic bottles. When the amount of injection molding materials is large, there is a possibility that the stirring blades will not stir evenly. Utility Model Content

[0005] In order to improve the uniformity of injection molding raw materials when injection molding cosmetic bottles of different sizes and shapes, the present application provides a feeding device for an injection molding machine.

[0006] The present application provides a feeding device for an injection molding machine, which adopts the following technical solution: it includes a feeding hopper, a stirring structure is arranged in the feeding hopper, a stirring motor is arranged on the feeding hopper, the stirring motor is used to drive the stirring structure to rotate and is connected to the feeding hopper, and the stirring structure is connected to the feeding hopper in a reciprocating sliding manner that can be positioned in the vertical direction.

[0007] By adopting the above technical solution, when injection molding cosmetic bottles of different sizes and shapes, the height of the stirring structure is adjusted in the vertical direction so that the height of the stirring structure is adapted to the liquid level of the injection molding raw material in the feeding hopper, thereby improving the uniformity of the injection molding raw material when injection molding cosmetic bottles of different sizes and shapes.

[0008] Preferably, the stirring structure includes a stirring rod and a stirring frame, one end of the stirring rod is used to be coaxially connected to the output shaft of the stirring motor, and the other end of the stirring rod is used to be connected to the stirring frame, and the stirring rod is connected to the feeding hopper by reciprocating sliding positionable in the vertical direction.

[0009] By adopting the above technical solution, the stirring frame increases the contact area between the stirring structure and the injection molding material in the hopper to a certain extent, and further improves the uniformity of the injection molding material when injecting cosmetic bottles of different sizes and shapes.

[0010] Preferably, the stirring frames are provided in plurality, a frame rod on one side of the stirring frames is parallel to the axis of the stirring rod and the frame rod on one side of the stirring frames is connected to an end of the stirring rod away from the stirring motor, and the plurality of stirring frames are arranged at equal angles along the circumference of the stirring rod.

[0011] By adopting the above technical solution, the multiple stirring frames further increase the contact area with the injection molding raw materials in the hopper. The multiple stirring frames are arranged at equal angles along the circumference of the stirring rod to evenly stir the injection molding raw materials in the hopper.

[0012] Preferably, a guide sleeve is provided on the feeding hopper, and the length direction of the guide sleeve is arranged in the vertical direction. One end of the guide sleeve is coaxially connected to the output shaft of the stirring motor, and the other end of the guide sleeve is sleeved on the end of the stirring rod away from the stirring frame. The stirring rod can be positioned and reciprocated along the length direction of the guide sleeve.

[0013] By adopting the above technical solution, the guide sleeve is sleeved on the stirring rod, providing a guiding effect for the reciprocating sliding of the stirring rod in the vertical direction, thereby improving the stability of the sliding adjustment of the stirring rod.

[0014] Preferably, a plurality of first positioning holes are provided on the rod wall of the stirring rod, the first positioning holes are provided along the radial direction of the stirring rod, and the plurality of first positioning holes are provided at equal intervals along the axial direction of the stirring rod, a second positioning hole is penetrated through the wall of the guide sleeve along the radial direction of the stirring rod, a positioning bolt is passed through the guide sleeve, and the positioning bolt is threadedly connected to the first positioning hole after passing through the second positioning hole.

[0015] By adopting the above technical solution, when the stirring rod slides back and forth in the vertical direction in the guide sleeve to a liquid level suitable for the injection molding raw material in the feeding hopper, the positioning bolt passes through the second positioning hole and is threadedly connected to the corresponding first positioning hole to form a relative fixation between the guide sleeve and the stirring rod.

[0016] Preferably, an adjustment column is extended radially along the stirring rod on the rod wall at one end of the stirring rod away from the stirring frame, and an adjustment opening for the adjustment column to pass through is penetrated radially along the stirring rod on the wall of the guide sleeve, and the length direction of the adjustment opening is opened along the axial direction of the stirring rod.

[0017] By adopting the above technical solution, the adjustment port allows the adjustment column to pass through the guide sleeve and be exposed outside the guide sleeve, which is convenient for operators to adjust the height of the stirring structure, and the adjustment port provides guidance and limiting effects for the sliding adjustment of the adjustment column.

[0018] Preferably, more than one hand grip ring is sleeved on the outer wall of the adjusting column, and the plurality of hand grip rings are sleeved on the adjusting column at equal intervals along the axial direction of the adjusting column.

[0019] By adopting the above technical solution, multiple hand grip rings are arranged on the adjustment column to increase the friction force on the surface of the adjustment column, thereby reducing the probability of hand slipping when the operator adjusts the height of the stirring structure.

[0020] Preferably, the hopper includes a hopper body and a hopper cover, the hopper body is open at the top, the hopper cover is used to seal the top opening of the hopper, the stirring motor is fixedly arranged on the hopper cover, the guide sleeve is coaxially penetrated through the hopper cover, a fixing piece is arranged on the hopper cover, and the hopper cover and the hopper body are detachably connected via the fixing piece.

[0021] By adopting the above technical solution, before each injection molding of a different cosmetic bottle, the fixing piece is disassembled to open the hopper cover, so that the operator can add injection molding raw materials into the hopper conveniently.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The height of the stirring structure is adapted to the liquid level of the injection molding material in the hopper, which improves the uniformity of the injection molding material when injecting cosmetic bottles of different sizes and shapes;

[0024] 2. The guide sleeve is sleeved on the stirring rod to provide a guide for the reciprocating sliding of the stirring rod in the vertical direction, thereby improving the stability of the sliding adjustment of the stirring rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of this application;

[0026] Figure 2 It is a cross-sectional schematic diagram of a part of the structure of the present application;

[0027] Figure 3 It is an exploded schematic diagram of a part of the structure of the present application.

[0028] Explanation of the reference numerals in the accompanying drawings: 110, hopper; 1101, hopper body; 1102, hopper cover; 111, fixing piece; 1111, fixing plate; 1112, fixing bolt; 112, mounting frame; 113, mounting cross bar; 114, mounting vertical bar; 120, stirring structure; 1201, stirring rod; 1202, stirring frame; 121, stirring motor; 122, guide sleeve; 123, first positioning hole; 124, second positioning hole; 125, positioning bolt; 126, adjusting column; 127, adjusting port; 128, grip ring. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The application discloses a feeding device for an injection molding machine, which is used to improve the uniformity of injection molding raw materials when injection molding cosmetic bottles of different sizes and shapes.

[0031] refer to Figure 1 A feeding device for an injection molding machine includes a feeding hopper 110, the feeding hopper 110 includes a feeding hopper body 1101 and a hopper cover 1102, the feeding hopper body 1101 is open at the top, the bottom of the feeding hopper body 1101 is used to communicate with the injection molding machine, the hopper cover 1102 is used to seal the top opening of the feeding hopper 110, and a fixing member 111 is provided on the hopper cover 1102. In this embodiment, a total of four fixing members 111 are provided, and the four fixing members 111 are arranged at equal angles along the circumference of the hopper cover 1102. The fixing member 111 includes a fixing plate 11 11 and fixing bolts 1112, the fixing plate 1111 is axially arranged along the hopper cover 1102, one end of the fixing plate 1111 is connected to the peripheral wall of the hopper cover 1102, and the other end of the fixing plate 1111 is for the fixing bolts 1112 to pass through, and the fixing bolts 1112 radially pass through the fixing plate 1111 along the hopper cover 1102 and are threadedly connected to the peripheral wall of the hopper body 1101. Before each injection molding of a different cosmetic bottle, the four fixing bolts 1112 are removed to open the hopper cover 1102, so that the operator can add injection molding materials into the hopper 110 for convenience.

[0032] refer to Figure 1 , Figure 2 In order to evenly stir the injection molding raw materials, a stirring structure 120 is provided in the hopper 110, and a stirring motor 121 is provided on the hopper 110. In the present embodiment, a mounting frame 112 is sleeved on the stirring motor 121, and mounting cross bars 113 are symmetrically extended on both sides of the mounting frame 112 in the horizontal direction. Two mounting vertical bars 114 are provided on the hopper cover 1102 in the vertical direction, and the ends of the two mounting cross bars 113 away from the mounting frame 112 are respectively vertically connected to the two mounting vertical bars 114, and the stirring motor 121 is used to drive the stirring structure 120 to rotate and connect to the hopper 110.

[0033] Since different cosmetic bottles have different sizes and shapes, different amounts of injection molding materials are required for injection molding of different cosmetic bottles. When the amount of injection molding materials is large, there is a possibility of uneven stirring. Therefore, in the present embodiment, the stirring structure 120 is connected to the hopper 110 in a reciprocating sliding manner that can be positioned in the vertical direction. When injection molding cosmetic bottles of different sizes and shapes, the height of the stirring structure 120 is adjusted in the vertical direction so that the height of the stirring structure 120 is adapted to the liquid level of the injection molding materials in the hopper 110, thereby improving the uniformity of the injection molding materials when injection molding cosmetic bottles of different sizes and shapes.

[0034] Specifically, the stirring structure 120 includes a stirring rod 1201 and a stirring frame 1202. A guide sleeve 122 is provided on the hopper 110. The length direction of the guide sleeve 122 is arranged in the vertical direction. The stirring rod 1201 and the guide sleeve 122 are coaxially arranged. One end of the guide sleeve 122 is coaxially connected to the output shaft of the stirring motor 121, and the other end of the guide sleeve 122 is sleeved on the stirring rod 1201. The guide sleeve 122 is coaxially penetrated through the hopper cover 1102 and is fixedly connected to the hopper cover 1102. In the embodiment, three stirring frames 1202 are provided, a frame rod on one side of the stirring frame 1202 is axially parallel to the stirring rod 1201, and the frame rod on one side of the stirring frame 1202 is connected to the end of the stirring rod 1201 away from the guide sleeve 122, and the three stirring frames 1202 are arranged at equal angles along the circumference of the stirring rod 1201. The three stirring frames 1202 increase the contact area between the stirring structure 120 and the injection molding material in the feeding hopper 110, and further improve the uniformity of the injection molding material when injecting cosmetic bottles of different sizes and shapes.

[0035] refer to Figure 2 , Figure 3 The stirring rod 1201 can be positioned to reciprocate and slide along the length direction of the guide sleeve 122, and the guide sleeve 122 is sleeved on the stirring rod 1201, providing a guiding effect for the reciprocating sliding of the stirring rod 1201 along the vertical direction, thereby improving the stability of the sliding adjustment of the stirring rod 1201. A plurality of first positioning holes 123 are provided on the rod wall of the stirring rod 1201, and the first positioning holes 123 are provided along the radial direction of the stirring rod 1201. The plurality of first positioning holes 123 are provided at equal intervals along the axial direction of the stirring rod 1201. The upper edge of the barrel wall of the guide sleeve 122 A second positioning hole 124 radially penetrates the stirring rod 1201, and a positioning bolt 125 is passed through the guide sleeve 122. The positioning bolt 125 passes through the second positioning hole 124 and is threadedly connected to the first positioning hole 123. When the stirring rod 1201 slides back and forth in the guide sleeve 122 along the vertical direction to a liquid level suitable for the injection molding raw material in the feeding hopper 110, the positioning bolt 125 passes through the second positioning hole 124 and is threadedly connected to the corresponding first positioning hole 123 to form a relative fixation between the guide sleeve 122 and the stirring rod 1201.

[0036] Furthermore, an adjustment column 126 is radially extended along the stirring rod 1201 on the rod wall at one end of the stirring rod 1201 away from the stirring frame 1202, and an adjustment port 127 for the adjustment column 126 to pass through is radially penetrated along the stirring rod 1201 on the wall of the guide sleeve 122, and the length direction of the adjustment port 127 is opened along the axial direction of the stirring rod 1201. The adjustment port 127 allows the adjustment column 126 to pass through the guide sleeve 122 and be exposed outside the guide sleeve 122, so that the operator can adjust the height of the stirring structure 120. The adjustment port 127 provides guidance and limiting effects for the sliding adjustment of the adjustment column 126, and the adjustment port 127 facilitates the operator to observe the matching condition of the first positioning hole 123 and the second positioning hole 124.

[0037] Furthermore, more than one grip ring 128 is sleeved on the outer wall of the adjusting column 126, and the multiple grip rings 128 are sleeved on the adjusting column 126 at equal intervals along the axial direction of the adjusting column 126. The multiple grip rings 128 sleeved on the adjusting column 126 increase the friction force on the surface of the adjusting column 126, thereby reducing the probability of the operator's hand slipping when adjusting the height of the stirring structure 120.

[0038] The implementation principle of the feeding device of an injection molding machine in an embodiment of the present application is as follows: when injecting cosmetic bottles of different sizes and shapes, the operator holds the adjusting column 126 and adjusts the height of the stirring rod 1201 in the vertical direction so that the height of the stirring structure 120 is adapted to the liquid level of the injection molding material in the feeding hopper 110. After completing the height adjustment, the operator passes the positioning bolt 125 through the second positioning hole 124 and connects it with the first positioning hole 123 through a thread, so that the guide sleeve 122 and the stirring rod 1201 are relatively fixed, thereby improving the uniformity of the injection molding material when injecting cosmetic bottles of different sizes and shapes.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A feeding device for an injection molding machine, comprising a feeding hopper (110), characterized in that: A stirring structure (120) is arranged in the feeding hopper (110), and a stirring motor (121) is arranged on the feeding hopper (110). The stirring motor (121) is used to drive the stirring structure (120) to rotate and connect to the feeding hopper (110), and the stirring structure (120) is connected to the feeding hopper (110) in a positionable reciprocating sliding manner in a vertical direction; The stirring structure (120) comprises a stirring rod (1201) and a stirring frame (1202); one end of the stirring rod (1201) is used to be coaxially connected to the output shaft of the stirring motor (121); the other end of the stirring rod (1201) is used to be connected to the stirring frame (1202); the stirring rod (1201) is connected to the feeding hopper (110) in a positionable reciprocating sliding manner in a vertical direction; The feeding hopper (110) is provided with a guide sleeve (122), the length direction of the guide sleeve (122) being arranged in a vertical direction, one end of the guide sleeve (122) being coaxially connected to an output shaft of the stirring motor (121), and the other end of the guide sleeve (122) being sleeved on an end of the stirring rod (1201) away from the stirring frame (1202), and the stirring rod (1201) being positionable and reciprocatingly slidable along the length direction of the guide sleeve (122); A plurality of first positioning holes (123) are provided on the rod wall of the stirring rod (1201), wherein the first positioning holes (123) are provided radially along the stirring rod (1201), and the plurality of first positioning holes (123) are provided equidistantly along the axial direction of the stirring rod (1201); a second positioning hole (124) is provided on the wall of the guide sleeve (122) radially through the stirring rod (1201), and a positioning bolt (125) is provided on the guide sleeve (122), and the positioning bolt (125) is threadedly connected to the first positioning hole (123) after passing through the second positioning hole (124).

2. A feeding device for an injection molding machine according to claim 1, characterized in that: A plurality of stirring frames (1202) are provided, a frame rod on one side of the stirring frame (1202) is axially parallel to the stirring rod (1201), and a frame rod on one side of the stirring frame (1202) is connected to an end of the stirring rod (1201) away from the stirring motor (121), and the plurality of stirring frames (1202) are arranged at equal angles along the circumference of the stirring rod (1201).

3. A feeding device for an injection molding machine according to claim 2, characterized in that: An adjustment column (126) is provided on the rod wall of one end of the stirring rod (1201) away from the stirring frame (1202) and extends radially along the stirring rod (1201); an adjustment opening (127) for the adjustment column (126) to pass through is penetrated radially along the stirring rod (1201) on the wall of the guide sleeve (122); and the length direction of the adjustment opening (127) is opened along the axial direction of the stirring rod (1201).

4. A feeding device for an injection molding machine according to claim 3, characterized in that: More than one hand grip ring (128) is sleeved on the outer wall of the adjustment column (126), and the plurality of hand grip rings (128) are sleeved on the adjustment column (126) at equal intervals along the axial direction of the adjustment column (126).

5. A feeding device for an injection molding machine according to claim 4, characterized in that: The hopper (110) comprises a hopper body (1101) and a hopper cover (1102); the hopper body (1101) is open at the top; the hopper cover (1102) is used to seal the open top of the hopper (110); the stirring motor (121) is fixedly arranged on the hopper cover (1102); the guide sleeve (122) is coaxially penetrated through the hopper cover (1102); a fixing member (111) is arranged on the hopper cover (1102); and the hopper cover (1102) and the hopper body (1101) are detachably connected via the fixing member (111).

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