Material cutting device of plastic vacuum forming machine

Abstract

The utility model provides a material cutting device of a plastic vacuum forming machine. The material cutting device comprises a base, a top seat, a punching rod, a breaking body, a suction cup, a negative pressure pump, a negative pressure assembly, a lifting assembly, a material falling groove and an electric telescopic rod. The top seat is positioned vertically above the base and is horizontally arranged with the base; the stamping rod is fixed on the surface of the top seat in a penetrating manner and is used for stamping control of cut materials; according to the scheme, overall stable cutting can be achieved, the situation that cutting is irregular is avoided, the cutting mode that a needle is matched with a positioning cutter is adopted, and good adaptability to the complex edge of a product is achieved; and meanwhile, the blanking mode of the scheme realizes a continuous control mode of cutting and blanking, the overall operation is faster, the blanking device can be matched with the blister time of the front section of a material plate, and based on a lighter blister finished product, the weight is lighter, the product directly falls off and is difficult to orderly arrange in sequence, and the product can be lightly placed downwards through the matching of a suction cup and a lifting assembly, so that the production efficiency is greatly improved. The quality of products is guaranteed, collision is avoided, and meanwhile stable discharging and stacking of the products can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial automation, and in particular relates to a material cutting device for a blister forming machine. Background Art

[0002] In the blister and cutting industries, various equipment and methods are usually used to process plastic sheets to make products. These equipment include blister machines, cutting machines, knives and conveying equipment. Blistering is a process of deforming flat materials into a specific shape using thermoplastics. Cutting is the process of cutting plastic products into the desired shape and size. These processes usually require a high degree of automation and precise control to ensure product quality and efficiency.

[0003] However, in the traditional blister and cutting process, there may be some defects, such as irregular product edges, inaccurate cutting, product bumps or drops, etc. These problems can affect product quality, increase production costs, and reduce production efficiency.

[0004] The principle and process of blister molding usually involves heating and softening a thermoplastic sheet, and then using negative pressure to adsorb it to the mold surface to obtain the desired shape. Cutting materials usually requires precise knives to cut the outline of the product on the material.

[0005] Cutting is the process of separating and precisely cutting the finished blister from the raw material sheet. It is a key step in blister production. The purpose of cutting is to cut out the finished blister and demould it to obtain the final product. Cutting requires precise operation to ensure the smoothness and accuracy of the product edge.

[0006] In addition, the cut material is also used to separate and neatly arrange the finished blister products for further processing and packaging. The accuracy and stability of the cut material are very important for producing high quality, consistency and appearance of blister products.

[0007] In the current cutting process, a direct cutting method is used, which can easily cause obvious cuts on the edges of the products. If the cut products are dropped directly, due to the lightness of the plastic, it is difficult to stack them in an orderly manner. Manual stacking is often required, and the free fall height is low, making it difficult to stack a large number of products. If it is high, it is easy to cause bumps on the surface of the product, which is not conducive to use.

[0008] In summary, cutting is a key step in blister production, which is crucial to product quality and efficiency. By improving the cutting method, the product quality and production efficiency can be improved.

[0009] In view of this, the present utility model is proposed. Utility Model Content

[0010] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0011] A material cutting device for a blister forming machine, comprising:

[0012] Base;

[0013] Top seat;

[0014] The top seat is located vertically above the base and is arranged horizontally therewith;

[0015] Punch rod;

[0016] The punching rod is fixed through the surface of the top seat and is used for punching control of the cutting material;

[0017] divided body;

[0018] The split body is installed at the bottom end of the punching rod and is used for the punching rod to control the cutting operation during its lifting process;

[0019] Suction cup;

[0020] The suction cup slides on the inner wall of the split body to change the height when the product is adsorbed;

[0021] Negative pressure pump;

[0022] The negative pressure pump is arranged above the split body and is used to maintain the negative pressure suction force of the suction cup;

[0023] Negative pressure components;

[0024] The negative pressure component is installed in the partition body and is used to communicate with the negative pressure pump during the lifting and lowering process of the suction cup;

[0025] Lifting components;

[0026] The lifting assembly is fixedly connected to the inner wall of the split body, and the bottom of the lifting assembly is fixedly connected to the upper surface of the suction cup, so as to control the height of the suction cup;

[0027] Drop chute;

[0028] The drop chute is located on one side of the base and is opened through the base to drop the separated products downward;

[0029] Electric telescopic pole;

[0030] The electric telescopic rod is fixed through one side of the split body and is used to drive the operation of the lifting component.

[0031] As a further solution of the utility model: the dividing body comprises a pressing bin, a lower surface of the pressing bin is provided with a cutter, and a surface of the cutter is provided with a plurality of threading needles in a protruding shape.

[0032] As a further solution of the utility model: a plurality of columns are fixed between the base and the top seat, a stopper and two guide rails for sliding the product are fixedly connected to the upper surface of the base, the guide rails are located on both sides of the blanking trough, and the height of the stopper is higher than the two guide rails.

[0033] As a further solution of the utility model: the lifting assembly includes two other bottom slides fixed to the upper surface of the suction cup, the inner wall of the bottom slide is slidably provided with a first bracket and a second bracket, the opposite surfaces of the first bracket and the second bracket are movably connected by a pin, the top of the first bracket is movably connected to the top slide by a pin, the top of the second bracket is movably connected to a translation slide by a pin, the translation slide slides in close contact with the inner wall of the top slide, the opposite surfaces of the two translation slides are commonly fixedly connected with a connecting rod, the connecting rod passes through and rotates on one end of the electric telescopic rod, and the two top slides are commonly fixedly connected to the upper surface of the inner wall of the pressing bin.

[0034] As a further solution of the utility model: the bottom end of the punching rod is fixedly connected with a connecting seat, and the upper surface of the split body is fixedly connected with a mounting ear that cooperates with the connecting seat.

[0035] As a further solution of the utility model: an I-tube is installed through the surface of the pressure bin, four ends of the I-tube are connected with hoses, one end of the hose is connected with a negative pressure hood, and the negative pressure hood is fixed through the upper surface of the suction cup.

[0036] As a further solution of the utility model: the negative pressure pump is fixedly connected to the surface of the connecting seat, and the surface of the connecting seat is installed with a controller for driving the negative pressure pump, the electric telescopic rod and the punching rod, and an alarm matching the controller.

[0037] As a further solution of the utility model: the surface of the I-shaped pipe is connected to a negative pressure pipe, and the negative pressure pipe is connected to a negative pressure pump. Beneficial Effects

[0038] The present invention can be used when the sheet of material formed by vacuum forming moves to the top of the blanking chute. At this time, the vacuum forming operation is performed on one side of the sheet of material, and the sheet of material is in a stationary state. At this time, the punching is started, and the split body is moved downward through the connecting seat and the mounting ear, so that the pressure bin of the split body presses the piercing needle downward, so that the piercing needle punctures along the contour of the product. When the puncture reaches a certain depth, the cutter cuts along the position of the piercing needle to completely separate the edge of the product. At the same time of puncture, the negative pressure pump is started to form a negative pressure on the I-shaped pipe through the negative pressure pipe. The I-shaped pipe extracts the gas in the suction cup through the hose and the negative pressure cover, so that when the cutter contacts the product, the suction cup contacts the product synchronously. At this time, the product is completely cut off by the cutter, but under the suction of the suction cup, it does not fall through the blanking chute. At this time, the electric telescopic rod is started to push the connecting rod, so that the connecting rod pushes and squeezes the top ends of the two first brackets, so that the shear force of the first bracket and the second bracket pushes the bottom slide downward to move, and the two bottom slides move downward with the same suction cup, and the hose maintains the continuous suction of the suction cup until the product moves to a specified height.

[0039] This method can achieve overall stable cutting without irregular cutting. It adopts the cutting method of needle threading and positioning cutter, which has better adaptability to the complex edges of the product.

[0040] At the same time, the unloading method of this solution realizes a continuous control method of cutting and unloading, and the overall operation is faster. It can adapt to the blister time of the front section of the material plate, and based on the lighter blister products, the weight is light, and it is difficult to arrange them in order if they are dropped directly. Through the cooperation of the suction cup and the lifting component, the product can be gently placed down to ensure the quality of the product without bumps, and at the same time to ensure the stable unloading and stacking of the product.

[0041] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0043] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another perspective;

[0044] Figure 3 It is a schematic cross-sectional structure diagram of a three-dimensional pressure bin of the utility model;

[0045] Figure 4 This is a three-dimensional structural diagram of the press bin of the utility model;

[0046] Figure 5 It is a three-dimensional structural diagram of the negative pressure assembly of the utility model;

[0047] Figure 6It is a three-dimensional structural schematic diagram of the lifting component of the utility model.

[0048] In the figure: 1. base; 2. column; 3. top seat; 4. punch rod; 5. dividing body; 51. pressing bin; 52. cutter; 53. threading needle; 6. negative pressure assembly; 61. I-tube; 62. hose; 63. negative pressure cover; 7. lifting assembly; 71. connecting rod; 72. translation slide; 73. first bracket; 74. second bracket; 75. top slide; 76. bottom slide; 8. connecting seat; 9. mounting ear; 10. negative pressure pump; 11. negative pressure pipe; 12. alarm; 13. controller; 14. electric telescopic rod; 15. suction cup; 16. guide rail; 17. stopper; 18. blanking chute. DETAILED DESCRIPTION

[0049] like Figures 1 to 6 As shown, a material cutting device for a blister forming machine comprises:

[0050] Base 1;

[0051] Top seat 3;

[0052] The top seat 3 is located vertically above the base 1 and is arranged horizontally therewith;

[0053] Punch rod 4;

[0054] The punching rod 4 penetrates and is fixed on the surface of the top seat 3, and is used for punching control of the cutting material;

[0055] split body 5;

[0056] The split body is installed at the bottom end of the punch rod 4 and is used for the punch rod 4 to control the cutting operation during its lifting process;

[0057] Suction cup 15;

[0058] The suction cup 15 slides on the inner wall of the dividing body 5 to change the height when the product is sucked;

[0059] Negative pressure pump 10;

[0060] The negative pressure pump 10 is arranged above the split body 5 to maintain the negative pressure suction of the suction cup 15.

[0061] Negative pressure component 6;

[0062] The negative pressure assembly 6 is installed in the split body 5 and is used to communicate with the negative pressure pump 10 during the lifting and lowering process of the suction cup 15;

[0063] Lifting assembly 7;

[0064] The lifting assembly 7 is fixedly connected to the inner wall of the split body 5, and the bottom of the lifting assembly 7 is fixedly connected to the upper surface of the suction cup 15, so as to control the height of the suction cup 15;

[0065] Feeding chute 18;

[0066] A material drop chute 18 is provided on one side of the base 1 and is used for the separated products to drop downwards;

[0067] Electric telescopic rod 14;

[0068] The electric telescopic rod 14 penetrates and is fixed on one side of the dividing body 5 , and is used to drive the operation of the lifting assembly 7 .

[0069] When the sheet material formed by vacuum forming moves to the top of the blanking chute 18 during use, the vacuum forming operation is performed on one side of the sheet material, and the sheet material is in a stationary state.

[0070] At this time, the punching starts, and the separating body 5 moves downward through the connecting seat 8 and the mounting ear 9, so that the pressing chamber 51 of the separating body 5 presses the piercing needle 53 downward, so that the piercing needle 53 punctures along the contour of the product. When the puncture reaches a certain depth, the cutter 52 cuts along the position of the piercing needle 53, so that the edge of the product is completely separated.

[0071] At the same time as puncturing, the negative pressure pump 10 is started, so that it forms negative pressure on the I-tube 61 through the negative pressure tube 11. The I-tube 61 extracts the gas in the suction cup 15 through the hose 62 and the negative pressure cover 63, so that when the cutter 52 contacts the product, the suction cup 15 contacts the product synchronously. At this time, the product is completely cut off by the cutter 52, but due to the suction force of the suction cup 15, it does not fall through the drop chute 18.

[0072] At this time, the electric telescopic rod 14 starts to push the connecting rod 71, so that the connecting rod 71 pushes and squeezes the top ends of the two first brackets 73, so that the shear force of the first bracket 73 and the second bracket 74 pushes the bottom slide 76 downward to move, and the two bottom slides 76 move downward with the same suction cup 15, and at the same time, the hose 62 maintains the continuous suction of the suction cup 15 until the product moves to the specified height.

[0073] Specifically, Figure 3 As shown, the separating body 5 comprises a pressing chamber 51 , a cutter 52 is provided on the lower surface of the pressing chamber 51 , and a plurality of threading needles 53 are protrudingly provided on the surface of the cutter 52 .

[0074] By setting the pressing bin 51, the pressing bin 51 can protect the interior, ensure a good cutting effect, and place the suction cup 15 inside.

[0075] By adopting the needle threading 53, it is possible to pass through the preset cutting position, which has a certain positioning effect and a better cutting effect.

[0076] Specifically, Figure 1As shown, a plurality of columns 2 are fixed between the base 1 and the top seat 3. A stopper 17 and two guide rails 16 for slidingly fitting the product are fixedly connected to the upper surface of the base 1. The guide rails 16 are located on both sides of the blanking trough 18, and the height of the stopper 17 is higher than the two guide rails 16.

[0077] By providing the upright column 2 , the upright column 2 can support the top seat 3 , thereby ensuring that the top seat 3 and the base 1 are always at a constant distance.

[0078] Specifically, Figure 6 As shown, the lifting assembly 7 includes two other bottom slides 76 fixed to the upper surface of the suction cup 15, the inner wall of the bottom slide 76 is slidably provided with a first bracket 73 and a second bracket 74, the opposite surfaces of the first bracket 73 and the second bracket 74 are movably connected by a pin, the top of the first bracket 73 is movably connected to a top slide 75 by a pin, the top of the second bracket 74 is movably connected to a translation slide 72 by a pin, the translation slide 72 slides in contact with the inner wall of the top slide 75, the opposite surfaces of the two translation slides 72 are commonly fixedly connected with a connecting rod 71, the connecting rod 71 passes through and rotates on one end of the electric telescopic rod 14, and the two top slides 75 are commonly fixedly connected to the upper surface of the inner wall of the pressing bin 51.

[0079] By providing the lifting assembly 7, the lifting assembly 7 is driven by the same electric telescopic rod 14, so that the stable coordination of the two sides can be maintained during use, making the lifting control more stable.

[0080] Specifically, Figure 4 As shown, the bottom end of the punching rod 4 is fixedly connected with a connecting seat 8 , and the upper surface of the split body 5 is fixedly connected with a mounting ear 9 that cooperates with the connecting seat 8 and is fixedly connected.

[0081] The connecting seat 8 and the mounting ear 9 can realize the connection and installation of the split body 5 and the punching rod 4. After the connecting seat 8 is fixed with the mounting ear 9, its lower surface contacts the upper surface of the pressing chamber 51, so that it can maintain its stable fit.

[0082] Specifically, Figure 3 As shown, an I-tube 61 is installed through the surface of the pressing bin 51 , and the four ends of the I-tube 61 are connected to a hose 62 . One end of the hose 62 is connected to a negative pressure cover 63 , and the negative pressure cover 63 is fixed on the upper surface of the suction cup 15 .

[0083] The I-tube 61 is connected to the negative pressure pump 10 through the negative pressure pipe 11, so that the I-tube 61 can be connected to the hoses 62 at the four corners at the same time. The hose 62 draws air out of the suction cup 15 through the negative pressure cover 63. At the same time, the hose 62 can bend when the suction cup 15 moves up and down to maintain a stable connection state.

[0084] Specifically, Figure 4As shown, the negative pressure pump 10 is fixedly connected to the surface of the connecting seat 8, and the surface of the connecting seat 8 is installed with a controller 13 for driving the negative pressure pump 10, the electric telescopic rod 14 and the punching rod 4, and an alarm 12 matching the controller 13.

[0085] The controller 13 can control the coordinated operation of the negative pressure pump 10 , the electric telescopic rod 14 and the punching rod 4 , and send out an alarm message through the alarm 12 when a fault occurs.

[0086] Specifically, Figure 5 As shown, the surface of the I-tube 61 is connected with a negative pressure pipe 11 , and the negative pressure pipe 11 is connected with a negative pressure pump 10 .

[0087] Working principle:

[0088] The thermoplastic sheet is heated and adsorbed to the mold surface to obtain the desired product shape. At this time, the sheet is stationary and only one side is subjected to the blistering operation. This ensures the shape and quality of the product.

[0089] After the blister is completed, the cutting process begins. The disconnecting body 5 with the connecting seat 8 and the mounting ear 9 is moved downward, and the pressing chamber 51 of the disconnecting body 5 presses the piercing needle 53 to start piercing. The piercing needle 53 pierces along the contour of the product until it reaches a certain depth. At the same time, the cutter 52 moves with the position of the piercing needle 53 to ensure that the cutting is performed at the appropriate time to separate the product from the material board. This cutting process ensures the edge integrity of the product.

[0090] At the same time, the negative pressure pump 10 is started, creating a negative pressure effect, and forming a negative pressure on the I-shaped pipe 61 through the negative pressure pipe 11. The I-shaped pipe 61 extracts the gas in the suction cup 15 through the hose 62 and the negative pressure cover 63 to ensure that the suction cup 15 has a continuous suction force when it contacts the product. This ensures that the product will not fall off when cutting.

[0091] Finally, the electric telescopic rod 14 is activated to push the connecting rod 71, so that the shear force of the first bracket 73 and the second bracket 74 pushes the bottom slide 76 downward. The two bottom slides 76 carry the suction cup 15 and move downward, while the hose 62 maintains the suction force of the suction cup 15. This allows the product to be gently placed at the specified height and ensures stable unloading and stacking of the product.

Claims

1. A material cutting device for a blister forming machine, characterized in that: The utility model comprises a base (1), a top seat (3), a punching rod (4), a dividing body (5), a suction cup (15), a negative pressure pump (10), a negative pressure assembly (6), a lifting assembly (7), a material drop chute (18) and an electric telescopic rod (14); the top seat (3) is located vertically above the base (1) and is arranged horizontally therewith; the punching rod (4) penetrates and is fixed on the surface of the top seat (3) and is used for punching control of cutting materials; the dividing body is installed at the bottom end of the punching rod (4) and is used for the punching rod (4) to control the cutting operation of the punching rod (4) during its lifting process; the suction cup (15) slides on the inner wall of the dividing body (5) and is used for adsorbing products when The negative pressure pump (10) is arranged above the split body (5) and is used to maintain the negative pressure suction of the suction cup (15); the negative pressure assembly (6) is installed inside the split body (5) and is used to communicate with the negative pressure pump (10) during the lifting and lowering process of the suction cup (15); the lifting assembly (7) is fixedly connected to the inner wall of the split body (5), and the bottom of the lifting assembly (7) is fixedly connected to the upper surface of the suction cup (15) and is used to control the height of the suction cup (15); the blanking chute (18) is located on one side of the base (1) and is opened through; the electric telescopic rod (14) is fixed through one side of the split body (5).

2. A material cutting device for a blister forming machine according to claim 1, characterized in that: The split body (5) comprises a pressing bin (51), a cutter (52) is arranged on the lower surface of the pressing bin (51), and a plurality of threading needles (53) are arranged in a protruding shape on the surface of the cutter (52).

3. A material cutting device for a blister machine according to claim 1, characterized in that: A plurality of columns (2) are fixed between the base (1) and the top seat (3); a stopper (17) and two guide rails (16) for sliding against the product are fixedly connected to the upper surface of the base (1); the guide rails (16) are located on both sides of the blanking trough (18), and the height of the stopper (17) is higher than the two guide rails (16).

4. A material cutting device for a blister forming machine according to claim 1, characterized in that: The lifting assembly (7) comprises two other bottom slides (76) fixed to the upper surface of the suction cup (15); the inner wall of the bottom slide (76) is slidably provided with a first bracket (73) and a second bracket (74); the opposite surfaces of the first bracket (73) and the second bracket (74) are movably connected via a pin; the top end of the first bracket (73) is movably connected to a top slide (75) via a pin; the top end of the second bracket (74) is movably connected to a translation slide (72) via a pin; the translation slide (72) slides in contact with the inner wall of the top slide (75); the opposite surfaces of the two translation slides (72) are fixedly connected with a connecting rod (71); the connecting rod (71) passes through and rotates on one end of the electric telescopic rod (14); the two top slides (75) are fixedly connected to the upper surface of the inner wall of the pressing bin (51).

5. A material cutting device for a blister machine according to claim 1, characterized in that: The negative pressure pump (10) is fixedly connected to the surface of the connection seat (8), and a controller (13) for driving the negative pressure pump (10), the electric telescopic rod (14) and the punching rod (4), and an alarm (12) matching the controller (13) are installed on the surface of the connection seat (8).

6. A material cutting device for a blister machine according to claim 1, characterized in that: The bottom end of the punching rod (4) is fixedly connected to a connecting seat (8), and the upper surface of the split body (5) is fixedly connected to a mounting ear (9) that cooperates with and is fixed to the connecting seat (8).

7. A material cutting device for a blister forming machine according to claim 4, characterized in that: An I-shaped pipe (61) is installed through the surface of the pressure bin (51), and the four ends of the I-shaped pipe (61) are connected to hoses (62), and one end of the hose (62) is connected to a negative pressure cover (63), and the negative pressure cover (63) is fixed through the upper surface of the suction cup (15).

8. A material cutting device for a blister forming machine according to claim 7, characterized in that: The surface of the I-shaped pipe (61) is connected to a negative pressure pipe (11), and the negative pressure pipe (11) is connected to a negative pressure pump (10).

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