Splitting machine for cast film

Abstract

The utility model belongs to the technical field of cast film processing, and particularly relates to a dividing and cutting machine for cast films, which comprises a bottom plate and a dividing and cutting assembly, a first vertical plate and a second vertical plate are respectively fixed above the front end and the rear end of the bottom plate, and a servo motor is fixedly mounted on the outer wall of the front end of the bottom of the first vertical plate. A first transverse rod is installed between the right sides of the first vertical plate and the second vertical plate through bearings, the front end of the first transverse rod is fixedly connected with the output end of the servo motor, a second transverse rod is fixed between the left sides of the first vertical plate and the second vertical plate, and a distance adjusting assembly is arranged on the outer side of the second transverse rod. A driving motor is fixedly installed on the outer wall of the front end of the top of the first vertical plate, the output end of the driving motor is fixedly connected with a driving rod, the outer side of the driving rod is sleeved with multiple sets of cutting assemblies at intervals, and an electric telescopic rod is fixed to the upper rear portion of the bottom plate. According to the device, the distance between a plurality of connecting sleeves and a plurality of groups of cutting assemblies can be adjusted more flexibly and accurately.

Description

Technical Field

[0001] This utility model belongs to the field of cast film processing technology, and in particular relates to a slitting machine for cast film. Background Technology

[0002] Cast film is a type of non-stretched, non-oriented flat extruded film produced by rapid cooling of melt flow. During the production and processing of cast film, a slitting machine is required to cut the cast film according to the customer's customized width requirements.

[0003] Chinese utility model patent CN218174149U discloses a slitting machine for cast film production. By providing adjustable partition plates on the outer wall of the connecting shaft, the spacing between the partition plates can be changed, thereby slitting cast films of different sizes. However, this slitting machine has some defects and shortcomings: the cutting blade can only be positioned at the location with the slot, the spacing adjustment is limited, the accuracy is low, and the cutting blade is not detachable, making it difficult to adapt to the slitting requirements of various widths of cast film.

[0004] Therefore, there is an urgent need to improve the existing slitting machines used in cast film production and provide a slitting machine for cast film with more flexible spacing adjustment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a casting film slitting machine that is reasonably designed, simple in structure, allows for more flexible and precise spacing adjustment, and enables the number of cutting blades to be increased or decreased according to actual conditions, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A slitting machine for cast film includes a base plate and slitting components. A first vertical plate and a second vertical plate are fixed above the front and rear ends of the base plate, respectively. A first crossbar is mounted on the right side of the first and second vertical plates via a bearing. The first crossbar is driven by a servo motor mounted on the first vertical plate. A drive motor is fixedly mounted on the outer wall of the top front end of the first vertical plate. A drive rod is fixedly connected to the output end of the drive motor. The rear end of the drive rod is driven to rise and fall by an electric telescopic rod located above the rear of the base plate. Multiple slitting components are sleeved on the outer side of the drive rod at intervals. A second crossbar is fixed between the left sides of the first and second vertical plates. A spacing adjustment component is provided on the outer side of the second crossbar. The multiple slitting components are linked together through the spacing adjustment component.

[0008] Preferably, the servo motor is fixedly installed on the bottom front end outer wall of the first vertical plate, and the output end of the servo motor is fixedly connected to the front end of the first horizontal bar.

[0009] Preferably, the spacing adjustment assembly includes a connecting sleeve, a fixing block, a first connecting rod, and a second connecting rod. Three or more connecting sleeves are arranged at equal intervals along the front-back direction of the base plate. Each connecting sleeve has a fixing block fixed on its left and right outer walls. All fixing blocks on the left side are slidably sleeved on the second crossbar. The fixing block at the frontmost point on the right side is threadedly connected to a threaded section at the front end of the first crossbar. The remaining fixing blocks on the right side are slidably sleeved on the first crossbar. The outer top of the two connecting sleeves at the frontmost and rearmost points is bearing-sleeved with the first connecting rod. The outer top of the remaining connecting sleeves is bearing-sleeved with the second connecting rod. The first connecting rod and its adjacent second connecting rod, as well as the two adjacent second connecting rods, are hinged.

[0010] Preferably, the length of the first link is half the length of the second link.

[0011] Preferably, the number of connecting sleeves is odd, with the bottom end of the middle connecting sleeve welded and fixed to the base plate, and the bottom ends of the remaining connecting sleeves sliding against the base plate.

[0012] Preferably, the slitting assembly includes a bracket, a horizontal tube, a blade, a groove, a limiting post, a spring, and a slider. The top bearing of the bracket is fitted with the horizontal tube, and the blade is fixedly sleeved on the outer side of the middle part of the horizontal tube. A groove is formed on the left side wall of the bottom of the bracket, and a limiting post is slidably installed inside the bottom end of the bracket. A spring is fixedly connected between the limiting post and the bracket, and a slider is fixed on the left side wall of the top of the limiting post. The slider engages and slides within the groove.

[0013] Preferably, the horizontal tube is engaged and slidably connected to the drive rod, and the outer wall of the drive rod is provided with symmetrical protrusions.

[0014] Preferably, the bottom end of the limiting post is inserted into the corresponding connecting sleeve.

[0015] Preferably, the top end of the electric telescopic rod is provided with a limiting ring, which is rotatably connected to the end of the drive rod.

[0016] Preferably, the limiting ring is composed of two semi-circular clamps, which are fixedly connected by bolts, and the lower clamp is fixedly installed on the telescopic end of the electric telescopic rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, a servo motor is activated to control the rotation of the first crossbar. The threaded section at the front end of the first crossbar controls the stable sliding of the foremost fixed block and connecting sleeve along the second crossbar. Since the middle connecting sleeve is fixedly connected to the base plate, the first and second connecting rods can rotate, causing multiple connecting sleeves to unfold equidistantly towards the front and rear sides with the middle connecting sleeve as a reference. This allows for more flexible and precise adjustment of the spacing between multiple connecting sleeves and multiple cutting components, solving the limitation of spacing adjustment in the prior art and facilitating the cutting needs of various sizes.

[0019] This invention controls the rotation of a drive rod by starting a drive motor. The outer wall of the drive rod has symmetrical protrusions, which facilitate the synchronous rotation of multiple horizontal tubes and blades, making it convenient for slitting the cast film. In addition, according to actual needs, the slider can be manually pinched and the limiting post can be pushed up along the slide groove to disengage the bottom end of the limiting post from the connecting sleeve, thereby releasing the restriction of the slitting component and removing the upper clamp. At the same time, the lower clamp can be moved down away from the drive rod by the electric telescopic rod, which can push the slitting component to slide for disassembly. The number of slitting components installed can be easily adjusted to meet the slitting needs of larger cast film sizes, making the device more practical. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows:

[0021] Figure 1 This is a schematic diagram of the three-dimensional right-side structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the working structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the cutting component of this utility model;

[0024] Figure 4 This is a top view of the overall structure of the spacing adjustment component of this utility model;

[0025] Figure 5 This is a front view cross-sectional diagram of the slitting component of this utility model.

[0026] In the picture:

[0027] 1. Base plate; 2. First vertical plate; 3. Second vertical plate; 4. Servo motor; 5. First horizontal bar; 6. Second horizontal bar; 7. Spacing adjustment assembly; 71. Connecting sleeve; 72. Fixing block; 73. First connecting rod; 74. Second connecting rod; 8. Cutting assembly; 81. Bracket; 82. Horizontal tube; 83. Blade; 84. Slide groove; 85. Limiting post; 86. Spring; 87. Slider; 9. Drive motor; 10. Drive rod; 11. Electric telescopic rod; 12. Clamp. Detailed Implementation

[0028] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0029] like Figure 1-5 As shown in the figure, the casting film slitting machine of this utility model includes a base plate 1 and a slitting assembly 8. A first vertical plate 2 and a second vertical plate 3 are fixedly fixed above the front and rear ends of the base plate 1, respectively. A servo motor 4 is fixedly installed on the outer wall of the bottom front end of the first vertical plate 2. A first crossbar 5 is mounted on the right side between the first vertical plate 2 and the second vertical plate 3. The front end of the first crossbar 5 is fixedly connected to the output end of the servo motor 4. A second crossbar 6 is fixed between the left side of the first vertical plate 2 and the second vertical plate 3. A spacing adjustment assembly 7 is provided on the outer side of the second crossbar 6. A drive motor 9 is fixedly installed on the outer wall of the top front end of the first vertical plate 2. A drive rod 10 is fixedly connected to the output end of the drive motor 9. Multiple slitting assemblies 8 are sleeved on the outer side of the drive rod 10 at intervals. An electric telescopic rod 11 is fixedly fixed above the rear end of the base plate 1. A limiting ring is provided at the top end of the electric telescopic rod 11. The limiting ring is rotatably connected to the end of the drive rod 10.

[0030] As a preferred embodiment, based on the above structure, the front end of the first crossbar 5 is provided with a threaded section, and the multi-group cutting components 8 are linked together through the spacing adjustment components 7.

[0031] In this embodiment, the spacing adjustment component 7 facilitates the reasonable adjustment of the spacing of the multi-component slitting component 8.

[0032] In a preferred embodiment, based on the above structure, the spacing adjustment component 7 further includes a connecting sleeve 71, a fixing block 72, a first connecting rod 73, and a second connecting rod 74. Three or more connecting sleeves 71 are arranged at equal intervals along the front-back direction of the base plate 1. Each connecting sleeve 71 has a fixing block 72 fixed on its left and right outer walls. All the fixing blocks 72 on the left side are slidably sleeved on the second crossbar 6. The fixing block 72 at the frontmost point on the right side is threadedly connected to a threaded section at the front end of the first crossbar 5. The remaining fixing blocks 72 on the right side are slidably sleeved on the first crossbar 5. The outer sides of the top ends of the two connecting sleeves 71 at the frontmost and rearmost points are each bearing-sleeved with the first connecting rod 73. The outer sides of the top ends of the remaining connecting sleeves 71 are each bearing-sleeved with the second connecting rod 74. The first connecting rod 73 and its adjacent second connecting rod 74, as well as the two adjacent second connecting rods 74, are hinged. The length of the first connecting rod 73 is half the length of the second connecting rod 74.

[0033] Based on the above structure, preferably, the number of connecting sleeves 71 is odd, the bottom end of the connecting sleeve 71 located in the middle is welded and fixed to the base plate 1, and the bottom ends of the remaining connecting sleeves 71 are all in contact with and slide against the base plate 1.

[0034] In one embodiment, five connecting sleeves 71 are arranged at equal intervals along the length of the base plate 1. Fixing blocks 72 are symmetrically fixed on the outer walls of the left and right sides of the connecting sleeves 71. The top outer sides of the front and rear connecting sleeves 71 are each fitted with a first connecting rod 73. The top outer sides of the remaining three connecting sleeves 71 are each fitted with a second connecting rod 74. The adjacent second connecting rods 74 and the connection between the second connecting rod 74 and the first connecting rod 73 are all hinged. The length of the first connecting rod 73 is half the length of the second connecting rod 74.

[0035] In this embodiment, when the foremost fixing block 72 and connecting sleeve 71 are moved forward using the threaded section at the front end of the first crossbar 5, the first connecting rod 73 and the second connecting rod 74 facilitate the multiple connecting sleeves 71 to unfold equidistantly towards the front and rear sides with the middle connecting sleeve 71 as the reference, enabling more flexible and precise adjustment of the spacing between the multiple connecting sleeves 71 and the multiple slitting components 8.

[0036] In a preferred embodiment, based on the above structure, the slitting assembly 8 further includes a bracket 81, a horizontal tube 82, a blade 83, a groove 84, a limiting post 85, a spring 86, and a slider 87. The horizontal tube 82 is mounted on the top bearing of the bracket 81, and the blade 83 is fixedly sleeved on the outer side of the middle part of the horizontal tube 82. The groove 84 is opened on the bottom left side wall of the bracket 81. The limiting post 85 is slidably installed inside the bottom end of the bracket 81. The spring 86 is fixedly connected between the limiting post 85 and the bracket 81. The slider 87 is fixed on the top left side wall of the limiting post 85, and the slider 87 is engaged and slidably located in the groove 84.

[0037] As a preferred embodiment, based on the above structure, the horizontal tube 82 is further engaged and slidably connected with the drive rod 10, the outer wall of the drive rod 10 is symmetrically provided with protrusions, and the bottom end of the limiting post 85 is inserted into the corresponding connecting sleeve 71.

[0038] In this embodiment, when the control drive rod 10 rotates, the symmetrically arranged protrusions on the outer wall of the drive rod 10 facilitate the synchronous rotation of multiple horizontal tubes 82 and blades 83, which makes it convenient to cut the cast film.

[0039] As a preferred embodiment, based on the above structure, the limiting ring is further composed of two semi-circular clamps 12, which are fixedly connected by bolts, and the lower clamp 12 is fixedly installed on the telescopic end of the electric telescopic rod 11.

[0040] In this embodiment, the limiting ring formed by the combination of two clamps 12 can support the drive rod 10 and improve its rotational stability.

[0041] The working principle of this utility model is as follows:

[0042] In use, the slitting machine is first fixedly installed in a suitable position on the casting machine. During the production and guiding of the casting film, the casting film passes through the slitting machine, and the drive motor 9 is started to control the drive rod 10 to rotate. The symmetrical protrusions on the outer wall of the drive rod 10 facilitate the synchronous rotation of multiple horizontal tubes 82 and blades 83, which is convenient for slitting the casting film. In addition, according to the actual slitting requirements, the servo motor 4 can be started to control the rotation of the first horizontal bar 5. The threaded section at the front end of the first horizontal bar 5 controls the foremost fixed block 72 and connecting sleeve 71 to move stably forward along the second horizontal bar 6. Since the middle connecting sleeve 71 is fixedly connected to the base plate 1, the first connecting rod 73 and the second connecting rod 74 can rotate, so that multiple connecting sleeves 71 are spread out at equal distances to the front and rear sides with the middle connecting sleeve 71 as the reference. The spacing of multiple connecting sleeves 71 and multiple slitting components 8 can be adjusted more flexibly and precisely, which solves the defect of limited spacing adjustment in the prior art, so as to meet the slitting requirements of various sizes.

[0043] This device can also remove the upper clamp 12 and control the electric telescopic rod 11 to drive the lower clamp 12 to move vertically downward away from the drive rod 10. Then, the slider 87 can be manually pinched and the limiting post 85 can be pushed to move upward along the slide groove 84, so that the bottom end of the limiting post 85 is separated from the connecting sleeve 71, releasing the restriction of the slitting component 8. Then, the slitting component 8 can be pushed to slide backward along the drive rod 10 for disassembly. The number of slitting components 8 installed can be easily adjusted to meet the slitting needs of larger size cast film, making the device more practical.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A slitting machine for cast film, comprising a base plate (1) and a slitting assembly (8), characterized in that: The first vertical plate (2) and the second vertical plate (3) are fixed above the front and rear ends of the base plate (1), respectively. A first horizontal bar (5) is installed between the right sides of the first vertical plate (2) and the second vertical plate (3). The first horizontal bar (5) is driven by a servo motor (4) provided on the first vertical plate (2). A drive motor (9) is fixedly installed on the outer wall of the top front end of the first vertical plate (2). A drive rod (10) is fixedly connected to the output end of the drive motor (9). The rear end of the drive rod (10) is driven to rise and fall by an electric telescopic rod (11) provided above the rear of the base plate (1). A multi-group cutting component (8) is sleeved on the outer side of the drive rod (10). A second horizontal bar (6) is fixed between the left sides of the first vertical plate (2) and the second vertical plate (3). A spacing adjustment component (7) is provided on the outer side of the second horizontal bar (6). The multi-group cutting component (8) is linked together through the spacing adjustment component (7).

2. A slitting machine for cast film according to claim 1, characterized in that: The servo motor (4) is fixedly installed on the bottom front end outer wall of the first vertical plate (2), and the output end of the servo motor (4) is fixedly connected to the front end of the first horizontal bar (5).

3. A slitting machine for cast film according to claim 1, characterized in that: The spacing adjustment assembly (7) includes a connecting sleeve (71), a fixing block (72), a first connecting rod (73), and a second connecting rod (74). Three or more connecting sleeves (71) are arranged at equal intervals along the front-back direction of the base plate (1). Each connecting sleeve (71) has a fixing block (72) fixed on the outer wall of both sides. All the fixing blocks (72) on the left side are slidably sleeved on the second crossbar (6). The fixing block (72) at the front end on the right side is threadedly connected to the threaded section at the front end of the first crossbar (5). The remaining fixing blocks (72) on the right side are slidably sleeved on the first crossbar (5). The first connecting rod (73) is slidably sleeved on the outer side of the top of the two connecting sleeves (71) at the front end and the two connecting sleeves (71) at the rear end. The second connecting rod (74) is slidably sleeved on the outer side of the top of the remaining connecting sleeves (71). The first connecting rod (73) is hinged to the adjacent second connecting rod (74) and to the two adjacent second connecting rods (74).

4. A slitting machine for cast film according to claim 3, characterized in that: The length of the first link (73) is half the length of the second link (74).

5. A slitting machine for cast film according to claim 3, characterized in that: The number of connecting sleeves (71) is odd. The bottom end of the connecting sleeve (71) located in the middle is welded and fixed to the base plate (1), and the bottom ends of the other connecting sleeves (71) slide against the base plate (1).

6. A slitting machine for cast film according to claim 1, characterized in that: The slitting assembly (8) includes a bracket (81), a horizontal tube (82), a blade (83), a groove (84), a limiting post (85), a spring (86), and a slider (87). The top bearing of the bracket (81) is fitted with the horizontal tube (82), and the blade (83) is fixedly sleeved on the outer side of the middle part of the horizontal tube (82). The bottom left side wall of the bracket (81) is provided with a groove (84). The limiting post (85) is slidably installed inside the bottom end of the bracket (81). A spring (86) is fixedly connected between the limiting post (85) and the bracket (81). The top left side wall of the limiting post (85) is fixed with a slider (87), and the slider (87) is engaged and slidably located in the groove (84).

7. A slitting machine for cast film according to claim 6, characterized in that: The horizontal tube (82) is engaged and slidably connected with the drive rod (10), and the outer wall of the drive rod (10) is symmetrically provided with protrusions.

8. A slitting machine for cast film according to claim 1, characterized in that: The top end of the electric telescopic rod (11) is provided with a limiting ring, which is rotatably connected to the end of the drive rod (10).

9. A slitting machine for cast film according to claim 8, characterized in that: The limiting ring is composed of two semi-circular clamps (12), which are connected by bolts. The lower clamp (12) is fixedly installed on the telescopic end of the electric telescopic rod (11).

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