Blank cutting device for plastic blow molding extruder

Abstract

The utility model discloses a blank cutting device for a plastic blow molding extruder, and belongs to the technical field of plastic blow molding equipment. Comprising a base capable of being adjusted up and down, a cutter seat which is installed on the base and can be adjusted left and right, a cutter mechanism which is arranged on the cutter seat in a left-right sliding mode and an air cylinder which is installed on the cutter seat and can push the cutter mechanism to move left and right in a reciprocating mode. The cutter mechanism is in sliding connection with the pair of linear sliding rails through a pair of linear sliding blocks, the cutter mechanism extends forwards to form a cantilever, a cutter rest is arranged at the end of the cantilever, a first cutter body and a second cutter body are installed at the left end and the right end of the cutter rest respectively, and the first cutter body and the second cutter body are parallel to each other and arranged in a spaced mode. The multi-station cutting device has the advantages that the moving speed of the cutter body can be effectively increased, it is ensured that blanks are completely cut off, the cutting face is smooth, the blanks extruded by multiple blank die heads can be cut off at multiple stations, and the machining efficiency is improved; and the precision of the blank is further ensured by finely adjusting the cutter body in the transverse direction and the longitudinal direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic blow molding equipment, and in particular relates to a material embryo cutting device used for a plastic blow molding extruder. Background Art

[0002] In the process of plastic blow molding, when the blank is extruded from the blank die head into the mold, the blank cutting is one of the essential steps. The cutting device is used in all walks of life, but in the plastic blow molding industry, the requirements for the cutting device are higher. At present, the industry's cutting devices are mainly hot cutters and cold cutters. Among them, the hot cutter needs to heat the knife body, and the speed does not need to be very fast during the process of cutting the blank, but the hot cutter needs to be equipped with many circuits and transformers, and the blade life is short. In addition, due to the slow cutting speed, the blank is still flowing when cutting, resulting in the blank amount cannot be guaranteed, the accuracy is greatly reduced, and it may also cause bubbles in the blank. The cold cutter uses the sharpness and high-speed movement of the blade to complete the cutting work. Although the moving speed of the blade is required to be high, it has the advantages of fewer accessories, low cost, high precision when cutting the blank, and long service life. Most of the existing cold cutters use a sliding structure matched with a guide column and a guide sleeve. The moving speed of the cutter is still relatively slow, and there may be uneven cut surfaces and failure to cut off the blank when cutting. Furthermore, whether it is a hot cutting knife or a cold cutting knife, there is usually only one cutting station, and the position of the knife body cannot be fine-tuned, which means that the accuracy of cutting the material blank cannot be adjusted, so it cannot meet the actual needs of the majority of manufacturers.

[0003] In view of the above problems, it is necessary to design a material embryo cutting device for a plastic blow molding extruder that is fast, simple in structure, low in cost, multi-station and capable of adjusting the precision. To this end, the applicant has cleverly designed this technical solution. Utility Model Content

[0004] The purpose of the utility model is to provide a material embryo cutting device for a plastic blow molding extruder, which helps to improve the drive structure and the knife body structure. The drive structure makes the movement of the knife body more flexible and increases the movement speed of the knife body, ensuring that the material embryo is completely cut and the cut surface is smooth, while the knife body structure enables the cutting device to achieve multi-station processing and be suitable for use with multiple material embryo die heads, which is conducive to improving the installation structure of the cutting device so that the blade can be fine-tuned in the horizontal and vertical positions to ensure the accuracy of the material embryo.

[0005] The purpose of the utility model is achieved in this way. A material embryo cutting device for a plastic blow molding extruder comprises a base that can be adjusted up and down, a cutter seat that can be adjusted left and right and is installed on the base, a cutter mechanism that is slidably arranged on the cutter seat left and right, and a cylinder that is installed on the cutter seat and can push the cutter mechanism to reciprocate left and right, a pair of linear slide rails are installed on the cutter seat, the cutter mechanism is slidably connected with a pair of linear slide rails through a pair of linear sliders, the cutter mechanism extends forward with a cantilever, a tool holder is arranged at the end of the cantilever, and a first tool body and a second tool body are respectively installed at the left and right ends of the tool holder, and the first tool body and the second tool body are parallel to each other and arranged at intervals.

[0006] In a specific embodiment of the utility model, a long base hole extending in the up-down direction is respectively provided at the left and right ends of the base, and the base is fixedly mounted on the base body and the up-down mounting position is adjusted through the long base hole thereon.

[0007] In another specific embodiment of the utility model, the cutter seat is provided with a group of cutter seat long holes in the left and right directions at the positions corresponding to the positions between a pair of linear slide rails, and the base is provided with a group of base assembly screw holes at the positions corresponding to the cutter seat long holes. The cutter seat is fixedly mounted on the base by fasteners that pass through the cutter seat long holes and the base assembly screw holes, and the left and right installation positions are adjusted through the cutter seat long holes.

[0008] In another specific embodiment of the utility model, a cylinder mounting seat extending forward is fixed to one end of the cutter seat, and a second buffer mounting plate extending forward is fixed to the other end, a first buffer seat is formed at a middle position of the cylinder mounting seat at a position corresponding to the cutter mechanism, a first buffer is installed on the first buffer seat, a cylinder column through-hole is provided at the end of the cylinder mounting seat, the cylinder is installed at the position of the cylinder column through-hole, a cylinder column passing through the cylinder column through-hole is formed on the cylinder, a driving block fixed to the cutter mechanism is fixed to the end of the cylinder column; a second buffer mounting seat is formed at the end of the second buffer mounting plate at a position corresponding to the cutter mechanism, and a second buffer is installed on the second buffer mounting seat.

[0009] In another specific embodiment of the utility model, the cutting mechanism includes a slide seat, the linear slider is installed on a side surface of the slide seat, one end of the cantilever is fixedly connected to the lower end surface of the slide seat, and the slide seat and the cantilever form an "L"-shaped structure.

[0010] In another specific embodiment of the utility model, the cantilever and the tool holder are fixed to each other via a group of cantilever fasteners, and the tool holder and the linear slide rail are arranged parallel to each other.

[0011] In a further specific embodiment of the present invention, one end of the first blade body is fixedly mounted on one end of the blade holder, and the other end extends forward, and the first blade body is pressed onto the blade holder by a first blade body pressing block, and the first blade body pressing block is locked and connected to the blade holder by a set of fasteners I.

[0012] In a more specific embodiment of the present invention, one end of the second blade body is fixedly connected to the other end of the blade holder, and the other end extends forward, and the second blade body is pressed onto the blade holder by a second blade body pressing block, and the second blade body pressing block is locked and connected to the blade holder by a set of fasteners II.

[0013] After the utility model adopts the above structure, it has the following beneficial effects: firstly, due to the use of a linear slide rail and a linear slider and a structure in which the two knife bodies reciprocate at intervals, the moving speed of the knife body is effectively improved, ensuring that the blank is completely cut and the cut surface is smooth, and the two knife bodies act simultaneously, so that the device can cut the blanks extruded by multiple blank die heads at multiple stations, thereby improving the processing efficiency; secondly, due to the structure in which the base can be adjusted up and down and the cutter seat can be adjusted left and right, the knife body can freely adjust the position in four directions of up, down, left and right, and the accuracy of the blank can be further ensured by transverse and longitudinal fine-tuning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the top structure of an embodiment of the utility model.

[0016] In the figure: 1. base, 11. long hole of base, 12. assembly screw hole of base; 2. cutter seat, 21. cylinder mounting seat, 211. first buffer seat, 212. cylinder column through hole, 22. second buffer mounting plate, 221. second buffer mounting seat, 23. linear slide rail, 24. long hole of cutter seat; 3. first buffer; 4. second buffer; 5. cylinder, 51. cylinder column, 52. drive block, 521. screw; 6. cutter mechanism, 61. slide seat, 611. linear slide block, 62. cantilever, 63. tool holder, 631. cantilever fastener, 64. first tool body pressing block, 641. fastener I, 65. first tool body, 66. second tool body pressing block, 661. fastener II, 67. second tool body; 7. blank. DETAILED DESCRIPTION

[0017] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0018] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on Figure 1 The positions shown are for reference only and thus cannot be understood as a special limitation on the technical solution provided by the present utility model.

[0019] See also Figure 1 and Figure 2 , illustrates a material embryo cutting device for a plastic blow molding extruder, comprising a base 1 that can be adjusted up and down, a cutter seat 2 that is mounted on the base 1 and can be adjusted left and right, a cutter mechanism 6 that is slidably arranged on the cutter seat 2 left and right, and a cylinder 5 that is mounted on the cutter seat 2 and can push the cutter mechanism 6 to move back and forth left and right, a pair of linear slide rails 23 are mounted on the aforementioned cutter seat 2, the aforementioned cutter mechanism 6 is slidably connected to the pair of linear slide rails 23 through a pair of linear sliders 611, the aforementioned cutter mechanism 6 extends forward with a cantilever 62, the end of the aforementioned cantilever 62 is provided with a knife holder 63, the left and right ends of the aforementioned knife holder 63 are respectively provided with a first knife body 65 and a second knife body 67, the aforementioned first knife body 65 and second knife body 67 are parallel to each other and arranged at intervals. The aforementioned cutting mechanism 6 includes a slide 61, the aforementioned linear slider 611 is installed on a side surface of the slide 61, one end of the aforementioned cantilever 62 is fixedly connected to the lower end surface of the slide 61, and the aforementioned slide 61 and the cantilever 62 form a letter "L" shaped structure.

[0020] Furthermore, the left and right ends of the aforementioned base 1 are respectively provided with a base long hole 11 extending in the up-down direction, and the aforementioned base 1 is fixedly mounted on the base and the up-down mounting position is adjusted through the base long hole 11 thereon. The aforementioned cutter seat 2 is provided with a group of cutter seat long holes 24 in the left-right direction at the position corresponding to the pair of linear slide rails 23, and the aforementioned base 1 is provided with a group of base assembly screw holes 12 at the position corresponding to the cutter seat long holes 24, and the aforementioned cutter seat 2 is fixedly mounted on the base 1 by a fastener after passing through the cutter seat long holes 24 and the base assembly screw holes 12, and the left-right mounting position is adjusted through the cutter seat long holes 24.

[0021] Furthermore, a cylinder mounting seat 21 extending forward is fixed to one end of the aforementioned cutter seat 2, and a second buffer mounting plate 22 extending forward is fixed to the other end. A first buffer seat 211 is formed at the middle position of the aforementioned cylinder mounting seat 21 at a position corresponding to the cutter mechanism 6, and a first buffer 3 is installed on the aforementioned first buffer seat 211. A cylinder column through hole 212 is provided at the end of the aforementioned cylinder mounting seat 21, and the aforementioned cylinder 5 is installed at the position of the cylinder column through hole 212. A cylinder column 51 passing through the cylinder column through hole 212 is formed on the aforementioned cylinder 5, and a driving block 52 fixed to the cutter mechanism 6 is fixed to the end of the aforementioned cylinder column 51, and the aforementioned driving block 52 is fixed to the slide seat 61 by a screw 521; a second buffer mounting seat 221 is formed at the end of the aforementioned second buffer mounting plate 22 at a position corresponding to the cutter mechanism 6, and a second buffer 4 is installed on the aforementioned second buffer mounting seat 221.

[0022] The cantilever 62 and the tool holder 63 are fixed to each other via a set of cantilever fasteners 631 , and the tool holder 63 and the linear guide rail 23 are arranged parallel to each other.

[0023] One end of the first blade body 65 is fixedly mounted on one end of the blade holder 63, while the other end extends forward. The first blade body 65 is pressed and fixed on the blade holder 63 through a first blade body pressing block 64, and the first blade body pressing block 64 is locked and connected to the blade holder 63 through a set of fasteners I 641. One end of the second blade body 67 is fixedly connected to the other end of the blade holder 63, while the other end extends forward. The second blade body 67 is pressed and fixed on the blade holder 63 through a second blade body pressing block 66, and the second blade body pressing block 66 is locked and connected to the blade holder 63 through a set of fasteners II 661.

[0024] Please continue reading Figure 1 Combined with Figure 2The cutting device is first adjusted up and down and left and right on the base through the aforementioned base long hole 11 and the cutter seat long hole 24 to control the cutting amount of the blank. When the cutting device is working, the first knife body 65 and the second knife body 67 have a side with a blade facing the blank 7, driving the cylinder 5 to work, and the cylinder column 51 pushes the driving block 52, and the driving block 52 causes the linear slide 611 to slide at high speed on the linear slide rail 23 through the slide 61. During the sliding process, the slide 61 drives the cantilever 62, the knife holder 63, the first knife body 65 and the second knife body 67 to slide toward the side of the blank 7. When the first knife The first blade 65 and the second blade 67 quickly cut the blank 7 when passing through it, until the slide 61 hits the second buffer 4. At this time, the first blade 65 and the second blade 67 respectively complete the cutting work of the corresponding blank 7; then the cylinder 5 is driven in the reverse direction to work, the cylinder column 51 retreats and pulls the driving block 52 to make the slide 61 slide in the opposite direction on the linear slide rail 23 through the linear slider 611, until the slide 61 drives the cantilever 62, the blade holder 63, the first blade 65 and the second blade 67 to reset and hit the first buffer 3, completing the cutting work of the entire blank. When the next group of blanks 7 are extruded by the blank die head, the above work is repeated, and the cycle is repeated in sequence.

Claims

1. A material embryo cutting device for a plastic blow molding extruder, characterized in that: The invention comprises a base (1) which can be adjusted up and down, a cutter seat (2) which is mounted on the base (1) and can be adjusted left and right, a cutter mechanism (6) which is slidably mounted on the cutter seat (2) left and right, and a cylinder (5) which is mounted on the cutter seat (2) and can push the cutter mechanism (6) to move back and forth left and right, wherein a pair of linear slide rails (23) are mounted on the cutter seat (2), the cutter mechanism (6) is slidably connected to the pair of linear slide rails (23) via a pair of linear sliders (611), the cutter mechanism (6) extends forward with a cantilever (62), a cutter holder (63) is arranged at the end of the cantilever (62), a first cutter body (65) and a second cutter body (67) are respectively mounted on the left and right ends of the cutter holder (63), and the first cutter body (65) and the second cutter body (67) are parallel to each other and arranged at intervals.

2. The material blank cutting device for a plastic blow molding extruder according to claim 1, characterized in that: The left and right ends of the base (1) are respectively provided with a base long hole (11) extending in the up-down direction. The base (1) is fixedly mounted on the base body and the up-down mounting position can be adjusted through the base long hole (11) thereon.

3. The material blank cutting device for a plastic blow molding extruder according to claim 1, characterized in that: The cutter seat (2) is provided with a group of cutter seat long holes (24) in the left-right direction at positions corresponding to between a pair of linear slide rails (23); the base (1) is provided with a group of base assembly screw holes (12) at positions corresponding to the cutter seat long holes (24); the cutter seat (2) is fixedly mounted on the base (1) by fasteners that pass through the cutter seat long holes (24) and the base assembly screw holes (12); and the left-right mounting position is adjusted through the cutter seat long holes (24).

4. The material blank cutting device for a plastic blow molding extruder according to claim 1, characterized in that: A cylinder mounting seat (21) extending forward is fixed to one end of the cutter seat (2), and a second buffer mounting plate (22) extending forward is fixed to the other end; a first buffer seat (211) is formed at a middle position of the cylinder mounting seat (21) at a position corresponding to the cutter mechanism (6); a first buffer (3) is mounted on the first buffer seat (211); a cylinder column through hole (212) is provided at the end of the cylinder mounting seat (21); the cylinder (5) is mounted at the position of the cylinder column through hole (212); a cylinder column (51) passing through the cylinder column through hole (212) is formed on the cylinder (5); a driving block (52) fixed to the cutter mechanism (6) is fixed to the end of the cylinder column (51); a second buffer mounting seat (221) is formed at the end of the second buffer mounting plate (22) at a position corresponding to the cutter mechanism (6); a second buffer (4) is mounted on the second buffer mounting seat (221).

5. The material blank cutting device for a plastic blow molding extruder according to claim 1, characterized in that: The cutting mechanism (6) comprises a slide seat (61), the linear slider (611) is mounted on a side surface of the slide seat (61), one end of the cantilever (62) is fixedly connected to the lower end surface of the slide seat (61), and the slide seat (61) and the cantilever (62) form a letter "L" shaped structure.

6. The material blank cutting device for a plastic blow molding extruder according to claim 5, characterized in that: The cantilever (62) and the tool holder (63) are fixed to each other via a group of cantilever fasteners (631), and the tool holder (63) and the linear slide rail (23) are arranged parallel to each other.

7. The material blank cutting device for a plastic blow molding extruder according to claim 1, characterized in that: One end of the first blade body (65) is fixedly mounted on one end of the blade holder (63), while the other end extends forward. The first blade body (65) is pressed onto the blade holder (63) by a first blade body pressing block (64). The first blade body pressing block (64) is locked and connected to the blade holder (63) by a set of fasteners I (641).

8. The material blank cutting device for a plastic blow molding extruder according to claim 1, characterized in that: One end of the second blade body (67) is fixedly connected to the other end of the blade holder (63), while the other end extends forward. The second blade body (67) is pressed onto the blade holder (63) by a second blade body pressing block (66). The second blade body pressing block (66) is locked and connected to the blade holder (63) by a set of fasteners II (661).

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