Automatic food packaging machine

Abstract

The present invention belongs to the technical field of packaging machines, and specifically is an automatic food packaging machine, comprising a supporting plate, a connecting plate and a sliding plate; the top of the supporting plate is hinged with a connecting plate; the left and right ends of the connecting plate are hinged with cutting dies; the bottom of the cutting die is fixedly connected with a cutting knife; the top of the supporting plate is hingedly connected with a connecting plate, and the left and right ends of the connecting plate are hingedly connected with the cutting dies, and the cutting knife is fixedly connected to the bottom of the cutting die, and the connecting plate is tilted as the sliding plate moves to the left, driving the cutting die at the left end of the connecting plate to move downward, so that the cutting knife in the cutting die at the left end protrudes out of the space outside the protective shell to cut the food packaging bag, and the cutting knife is fixedly connected to the left and right ends of the connecting plate, when the cutting knife at the left end is worn, the toggle rod can be moved to the right to realize that the cutting knife at the left end of the connecting plate can pop out and continue to work, the structure is simple, the operation is convenient, the replacement cycle of the cutting knife can be effectively extended, and the time for changing the cutting knife can be shortened, and the production efficiency can be improved simultaneously.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging machines, in particular to an automatic food packaging machine. Background Art

[0002] There are three main types of full-automatic packaging machines in the domestic market: bag-making type, bag-feeding type, and can-feeding type. Bag-making full-automatic packaging machines usually consist of two parts: a bag-making machine and a weighing machine. The weighing machine can be either a weighing type or a screw type. It can package both granular and powdery materials. The machine is an automatic packaging equipment that directly makes bags from packaging film and completes metering, filling, coding, cutting and other actions during the bag-making process. The packaging materials are usually plastic composite films, aluminum-platinum composite films, paper bag composite films, etc. They are characterized by a high degree of automation, good image, and good anti-counterfeiting properties. They are suitable for small-scale, large-volume automated packaging of condiments, puffed foods and other products.

[0003] The cutter of the packaging machine is mainly made of stainless steel. Stainless steel is rust-proof, stable, durable, and rust-resistant. The main function of the cutter is to cut the packaging bags. The lines of the packaging bags are clear during the cutting process, and the incision of the packaging bags is flat, smooth, delicate and perfect, with a good appearance. The cutter cuts the packaging bags repeatedly for a long time, and the cutter is severely worn and not sharp, and cannot cut the packaging bags at one time. At this time, a new cutter needs to be replaced. The normal time to replace the cutter takes between ten and twenty minutes. During this time, production cannot continue. The time to replace the cutter accumulates and seriously affects the production efficiency. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art and solve the problem that when replacing the cutter of the full-automatic packaging machine, it takes a long time to replace the cutter, which seriously affects the food production efficiency, the present invention proposes an automatic food packaging machine.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the automatic food packaging machine described in the present invention comprises a supporting plate, a connecting plate and a sliding plate; the supporting plate is designed in a mountain shape; the top of the supporting plate is hinged with a connecting plate; both left and right ends of the connecting plate are hinged with a cutting die; the bottom of the cutting die is fixedly connected with a cutting knife; the upper surface of the connecting plate is slidably connected with a sliding plate, and the sliding plate is designed in a trapezoidal shape; the upper surface of the sliding plate is provided with a protective shell, and the protective shell is designed in a rectangular shape;

[0006] The thickness of the sliding plate is equal to the thickness between the connecting plate and the protective shell after the connecting plate is attached to the inclined surface of the supporting plate; the distance between the protective shell and the supporting plate is equal to the thickness of the cutting die; the front and rear ends of the protective shell are both provided with a first slide groove, and the first slide groove is designed in a herringbone shape; the first slide groove is designed to match the sliding track of the sliding plate; a toggle rod is fixedly connected to the middle of the sliding plate; the toggle rod moves in the first slide groove, and when the toggle rod moves to the bottom of the first slide groove, the sliding plate is tightly attached to the inclined surface of the supporting plate and is located between the connecting plate and the protective shell;

[0007] During operation, in order to increase the output in the peak season, the food workshop will run the full-automatic packaging machine at full speed. During the full-speed operation of the full-automatic packaging machine, the cutter inside the packaging machine repeatedly cuts the packaging bag, which increases the wear of the cutter and seriously affects the service life of the cutter. At the same time, the production time is wasted when replacing the cutter, which affects the production efficiency. The sliding plate is slidably connected to the upper surface of the connecting plate, so that the sliding plate applies its own gravity to the surface of the connecting plate during the left and right sliding process. In order to facilitate the movement of the sliding plate, a toggle rod is fixedly connected to the surface of the front and rear ends of the sliding plate. When the toggle rod is moved, the toggle rod drives the sliding plate to move synchronously, which is convenient for the staff to operate the moving direction of the sliding plate. At the same time, a first sliding groove is opened on the side walls at the front and rear ends of the protective shell, so that the toggle rod can slide along the first sliding groove to ensure that the toggle rod moves along a fixed line to avoid displacement during the movement of the toggle rod. Since the connecting plate is hinged on the top of the support plate, the left and right ends of the connecting plate are hinged with cutting dies, and the cutting knife is fixedly connected to the bottom of the cutting die. When the sliding plate moves to the left, the connecting plate moves to the left with the sliding plate The connecting plate is tilted by the sliding plate, driving the cutting die at the left end of the connecting plate to move downward, so that the cutting knife in the cutting die at the left end protrudes out of the outer space of the protective shell to cut the food packaging bag. Similarly, when the sliding plate moves to the right, the connecting plate tilts with the sliding plate to move to the right, driving the cutting die at the right end of the connecting plate to move downward, so that the cutting knife in the cutting die at the right end protrudes out of the outer space of the protective shell to cut the food packaging bag. By fixing the cutting knives at both ends of the connecting plate, when the cutting knife at the left end is worn, the toggle lever can be moved to the right to realize that the cutting knife at the left end of the connecting plate can be ejected to continue working. The invention has a simple structure and is easy to operate. It can effectively extend the replacement cycle of the cutter, shorten the replacement time of the cutter, and improve the production efficiency at the same time. The thickness of the sliding plate is equal to the thickness between the connecting plate and the protective shell after the connecting plate is attached to the inclined surface of the supporting plate, so that the sliding plate can be effectively clamped between the connecting plate and the protective shell after moving and tilting, thereby preventing the cutter from shaking when cutting the packaging bag. The herringbone design in the first slide groove makes the toggle rod completely clamped at the bottom of the first slide groove, thereby further preventing the cutter from shaking when cutting the packaging bag.

[0008] Preferably, a thread groove is formed on the surface of the toggle rod; a loose handle is rotatably connected to the surface of the thread groove, and the loose handle is located in the outer space of the protective shell;

[0009] When working, a threaded groove is opened on the surface of the toggle rod, and a tension handle is rotatably connected to the surface of the threaded groove. When the toggle rod is slid, the tension handle is driven to move synchronously. When the sliding plate is moved to the end of the first sliding groove, the tension handle is rotated to fix the toggle rod. At the same time, the sliding plate can be further fixed to prevent the cutter from shaking during the cutting process.

[0010] Preferably, a card slot is provided at the bottom of the knife die, and the card slot is designed in a T shape; the card slot and the cutter are designed correspondingly, and the cutter is connected to the card slot; a rubber pad is fixedly connected to the top of the card slot;

[0011] During operation, a slot is provided at the bottom of the cutting die, and a cutter is connected inside the slot. When the cutter needs to be replaced, the cutter inside the slot is directly taken out from the slot and replaced with a new cutter without the need for screws, which can effectively improve the efficiency of replacing the cutter. A rubber pad is fixedly connected to the top of the slot so that the top of the cutter cannot directly contact the cutting die, thereby reducing the reaction force on the connecting plate during the process of cutting the packaging bag, reducing the vibration generated by the cutter during cutting, and reducing the impact on the connecting plate.

[0012] Preferably, an air storage cavity is provided inside the rubber pad; springs arranged uniformly are fixedly connected inside the air storage cavity; air grooves are provided on the side walls at both ends of the front and rear ends of the protective shell, and the air grooves are located at the ends of the left and right ends of the first slide groove; the air groove is sealed and slidably connected to a limit block; the limit block is connected to the space inside the first slide groove at one end away from the air groove; the air groove and the air storage cavity are connected through an air pipe;

[0013] During operation, an air storage cavity is provided inside the rubber pad, and a uniformly arranged spring is fixedly connected inside the air storage cavity, so that the reaction force received by the cutter when cutting the packaging bag can be further reduced and directly transmitted to the connecting plate. Since air grooves are provided on the side walls at the front and rear ends of the protective shell, the air grooves are sealed and slidably connected with a limit block, and the air grooves and the air storage cavity are connected through an air pipe. When the cutter cuts the packaging bag, the reaction force received is transmitted to the rubber pad, squeezing the air storage cavity inside the rubber pad, so that the air inside the air storage cavity is transmitted to the space in the air groove through the air pipe. Since the limit block in the air groove is in the space in the air groove in the initial state, when the gas inside the air storage cavity is transmitted to the space in the air groove through the air pipe, the limit block in the air groove is driven to move upward, and the protruding air groove extends to the space in the first slide groove, thereby limiting the toggle rod and preventing the toggle rod from moving when the cutter is working.

[0014] Preferably, a water storage cavity is provided inside the support plate, and liquid is contained inside the water storage cavity; a cavity is provided inside each of the cutting dies, and the cavity is located above the cutting knife; the cavity is connected to the water storage cavity through a conduit;

[0015] During operation, since a water storage cavity is provided inside the support plate and a cavity is provided inside the cutting die, the construction materials of the support plate and the cutting die can be effectively saved. The cavity and the water storage cavity are connected by a conduit. When the cutter at the left end needs to be used, the cutting die at the left end of the connecting plate moves downward synchronously during the movement of the sliding plate to the left. When the height of the cavity inside the cutting die is lower than the height of the water storage cavity, the liquid inside the water storage cavity will flow into the space inside the cavity. With the inflow of the liquid inside the cavity, the speed at which the cutting die moves downward can be accelerated, and the sliding plate can be quickly connected. When the cutter at the right end needs to be replaced and used, the height of the cavity at the right end is lower than the height of the water storage cavity, and the liquid inside the water storage cavity will flow into the space inside the cavity at the right end. At the same time, at this time, the height of the cavity at the left end is greater than the height of the water storage cavity. The liquid in the space inside the cavity at the left end flows into the space inside the water storage cavity, which reduces the weight of the left end of the connecting plate and accelerates the downward speed of the cutter at the right end.

[0016] Preferably, the side walls at both ends of the protective shell are provided with second slide grooves; the second slide groove is located above the first slide groove, and the two do not contact each other; the left and right ends of the second slide groove are provided with positioning holes; the positioning holes are designed to correspond to the cutting position of the cutter;

[0017] During operation, a second slide groove is opened on the side walls at the front and rear ends of the protective shell, so that the cutting table can quickly install the protective shell. Since positioning holes are opened at the left and right ends of the second slide groove, the positioning holes are designed corresponding to the cutting position of the cutter. When the staff replaces the cutter, they fix the fixing bolts into the corresponding positioning holes to position the cutter, which effectively prevents the cutter from shifting during replacement and affecting the cutting effect of the packaging bag.

[0018] The beneficial effects of the present invention are as follows:

[0019] When the sliding plate moves to the left, the connecting plate tilts with the sliding plate to the left, driving the cutting die at the left end of the connecting plate to move downward, so that the cutting knife in the cutting die at the left end protrudes out of the outer space of the protective shell to cut the food packaging bag. Similarly, when the sliding plate moves to the right, the connecting plate tilts with the sliding plate to the right, driving the cutting die at the right end of the connecting plate to move downward, so that the cutting knife in the cutting die at the right end protrudes out of the outer space of the protective shell to cut the food packaging bag. The cutting knife is fixedly connected to the left and right ends of the connecting plate. When the cutting knife at the left end is worn, the toggle rod is moved to the right to realize that the cutting knife at the left end of the connecting plate pops out and continues to work. The structure is simple and the operation is convenient. The replacement cycle of the cutting knife can be effectively extended, while the replacement time of the cutting knife can be shortened, and the production efficiency can be improved simultaneously.

[0020] 2. The automatic food packaging machine described in the present invention is provided with a rubber pad, an air groove, a limit block, an air storage cavity and an air pipe; an air storage cavity is opened inside the rubber pad, and a uniformly arranged spring is fixedly connected inside the air storage cavity, so that the reaction force received by the cutter when cutting the packaging bag can be further reduced and directly transmitted to the connecting plate; since air grooves are opened on the side walls at the front and rear ends of the protective shell, the air groove is sealed and slidably connected with the limit block inside the air groove, and the air groove and the air storage cavity are connected through the air pipe, when the cutter cuts the packaging bag, the reaction force received is transmitted to the rubber pad, squeezing the air storage cavity inside the rubber pad, so that the air inside the air storage cavity is transmitted to the space in the air groove through the air pipe; since the limit block in the air groove is in the space in the air groove in the initial state, when the gas in the air storage cavity is transmitted to the space in the air groove through the air pipe, the limit block in the air groove is driven to move upward, and the protruding air groove extends to the space in the first slide groove, thereby limiting the toggle rod and preventing the toggle rod from moving when the cutter is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a front view of the present invention;

[0023] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0024] Figure 3 is a cross-sectional view of the present invention;

[0025] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0026] In the figure: protective shell 1, first slide groove 11, second slide groove 12, positioning hole 13, air groove 14, limit block 15, sliding plate 2, toggle rod 21, elastic handle 22, connecting plate 3, cutting die 31, cavity 32, slot 33, cutting knife 34, rubber pad 35, air storage cavity 36, spring 37, support plate 4, water storage cavity 41, conduit 42. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figures 1 to 4As shown, an automatic food packaging machine described in the present invention comprises a support plate 4, a connecting plate 3 and a sliding plate 2; the support plate 4 is designed in a mountain shape; the top of the support plate 4 is hinged with a connecting plate 3; both left and right ends of the connecting plate 3 are hinged with a cutting die 31; the bottom of the cutting die 31 is fixedly connected with a cutting knife 34; the upper surface of the connecting plate 3 is slidably connected with the sliding plate 2, and the sliding plate 2 is designed in a trapezoidal shape; the upper surface of the sliding plate 2 is provided with a protective shell 1, and the protective shell 1 is designed in a rectangular shape;

[0029] The thickness of the sliding plate 2 is equal to the thickness between the connecting plate 3 and the protective shell 1 after the connecting plate 3 is attached to the inclined surface of the supporting plate 4; the distance between the protective shell 1 and the supporting plate 4 is equal to the thickness of the cutting die 31; the front and rear ends of the protective shell 1 are provided with a first slide groove 11, and the first slide groove 11 is designed in a herringbone shape; the first slide groove 11 is designed to match the sliding track of the sliding plate 2; a toggle rod 21 is fixedly connected to the middle of the sliding plate 2; the toggle rod 21 moves in the first slide groove 11, and when the toggle rod 21 moves to the bottom of the first slide groove 11, the sliding plate 2 is located between the connecting plate 3 and the protective shell 1 on the inclined surface of the supporting plate 4;

[0030] During operation, in order to increase production in the peak season of the food workshop, the fully automatic packaging machine will run at full speed. During the full-speed operation of the fully automatic packaging machine, the cutter inside the packaging machine repeatedly cuts the packaging bag, which increases the degree of wear of the cutter and seriously affects the service life of the cutter. At the same time, the production time is wasted when replacing the cutter, which affects the production efficiency. The sliding plate 2 is slidably connected to the upper surface of the connecting plate 3, so that the sliding plate 2 applies its own gravity to the surface of the connecting plate 3 during the sliding process of the sliding plate 2 to the left and right. In order to facilitate the movement of the sliding plate 2, a toggle rod 21 is fixedly connected to the surfaces of the front and rear ends of the sliding plate 2 to move the toggle rod. When the lever 21 is moved, the toggle lever 21 drives the sliding plate 2 to move synchronously, which is convenient for the staff to operate the moving direction of the sliding plate 2. At the same time, a first slide groove 11 is provided on the side walls at the front and rear ends of the protective shell 1, so that the toggle lever 21 can slide along the first slide groove 11, ensuring that the toggle lever 21 moves along a fixed line, and avoiding deviation during the movement of the toggle lever 21. Since the top of the support plate 4 is hinged with a connecting plate 3, the left and right ends of the connecting plate 3 are hinged with a cutting die 31, and a cutting knife 34 is fixedly connected to the bottom of the cutting die 31, when the sliding plate 2 moves to the left, the connecting plate 3 tilts with the sliding plate 2 to move to the left, driving The cutting die 31 at the left end of the connecting plate 3 moves downward, so that the cutting knife 34 in the cutting die 31 at the left end protrudes out of the outer space of the protective shell 1 to cut the food packaging bag. Similarly, when the sliding plate 2 moves to the right, the connecting plate 3 tilts as the sliding plate 2 moves to the right, driving the cutting die 31 at the right end of the connecting plate 3 to move downward, so that the cutting knife 34 in the cutting die 31 at the right end protrudes out of the outer space of the protective shell 1 to cut the food packaging bag. Since the cutting knives 34 are fixedly connected to both the left and right ends of the connecting plate 3, when the cutting knife 34 at the left end is worn, the toggle rod 21 is moved to the right to realize that the cutting knife 34 at the left end of the connecting plate 3 pops out and continues to work. The structure is simple and the operation is convenient. It can effectively extend the replacement cycle of the cutter 34, shorten the replacement time of the cutter 34, and improve the production efficiency simultaneously. The thickness of the sliding plate 2 is equal to the thickness between the connecting plate 3 and the protective shell 1 after the connecting plate 3 is attached to the inclined surface of the support plate 4, so that the sliding plate 2 can be effectively clamped between the connecting plate 3 and the protective shell 1 after moving and tilting, thereby preventing the cutter 34 from shaking when cutting the packaging bag. The herringbone design of the first slide groove 11 makes the toggle rod 21 completely stuck at the bottom of the first slide groove 11, further preventing the cutter 34 from shaking when cutting the packaging bag.

[0031] As an embodiment of the present invention, a thread groove is formed on the surface of the toggle rod 21; a loose handle 22 is rotatably connected to the surface of the thread groove, and the loose handle 22 is located in the outer space of the protective shell 1;

[0032] During operation, a threaded groove is opened on the surface of the toggle rod 21, and a tension handle 22 is rotatably connected to the surface of the threaded groove. When the toggle rod 21 is slid, the tension handle 22 is driven to move synchronously. When the sliding plate 2 is moved to the end of the first sliding groove 11, the tension handle 22 is rotated to fix the toggle rod 21. At the same time, the sliding plate 2 can be further fixed to prevent the cutter 34 from shaking during the cutting process.

[0033] As an embodiment of the present invention, a slot 33 is provided at the bottom of the knife die 31, and the slot 33 is designed in a T shape; the slot 33 and the cutter 34 are designed correspondingly, and the cutter 34 is connected to the slot 33; a rubber pad 35 is fixedly connected to the top of the slot 33;

[0034] During operation, a slot 33 is provided at the bottom of the cutting die 31, and a cutter 34 is clamped inside the slot 33. When the cutter 34 needs to be replaced, the cutter 34 inside the slot 33 is directly taken out from the slot 33 and replaced with a new cutter 34. No screws are required to fix it, which can effectively improve the efficiency of replacing the cutter 34. A rubber pad 35 is fixedly connected to the top of the slot 33 so that the top of the cutter 34 cannot directly contact the cutting die 31, thereby reducing the reaction force on the connecting plate 3 during the process of cutting the packaging bag by the cutter 34, reducing the vibration generated by the cutter 34 during cutting, and reducing the impact on the connecting plate 3.

[0035] As an embodiment of the present invention, an air storage cavity 36 is provided inside the rubber pad 35; springs 37 arranged uniformly are fixedly connected inside the air storage cavity 36; air grooves 14 are provided on the side walls at both ends of the front and rear ends of the protective shell 1, and the air grooves 14 are located at the ends of the left and right ends of the first slide groove 11; the air grooves 14 are sealed and slidably connected to the limit blocks 15; the limit blocks 15 are connected to the space inside the first slide groove 11 at one end away from the air grooves 14; the air grooves 14 and the air storage cavity 36 are connected through an air pipe;

[0036] During operation, an air storage chamber 36 is provided inside the rubber pad 35, and a spring 37 is fixedly connected to the air storage chamber 36, so that the reaction force received by the cutter 34 when cutting the packaging bag can be further reduced and directly transmitted to the connecting plate 3. Since air grooves 14 are provided on the side walls at both ends of the protective shell 1, the air grooves 14 are sealed and slidably connected to the limit blocks 15, and the air grooves 14 are connected to the air storage chamber 36 through an air pipe, when the cutter 34 cuts the packaging bag, the reaction force received is transmitted to the rubber pad 35. The air storage cavity 36 inside the rubber pad 35 is squeezed, so that the air inside the air storage cavity 36 is transmitted to the space inside the air groove 14 through the air pipe. Since the limit block 15 in the air groove 14 is in the space inside the air groove 14 in the initial state, when the gas inside the air storage cavity 36 is transmitted to the space inside the air groove 14 through the air pipe, the limit block 15 in the air groove 14 is driven to move upward and protrude from the air groove 14 to extend to the space inside the first slide groove 11, thereby limiting the toggle rod 21 and preventing the toggle rod 21 from moving when the cutter 34 is working.

[0037] As an embodiment of the present invention, a water storage cavity 41 is provided inside the support plate 4, and liquid is contained inside the water storage cavity 41; a cavity 32 is provided inside each of the knife molds 31, and the cavity 32 is located above the cutter 34; the cavity 32 is connected to the water storage cavity 41 through a conduit 42;

[0038] During operation, since the support plate 4 has a water storage cavity 41, and the cavity 32 is provided inside the cutting die 31, the construction materials of the support plate 4 and the cutting die 31 can be effectively saved. The cavity 32 is connected to the water storage cavity 41 through the conduit 42. When the cutter 34 at the left end needs to be used, the cutting die 31 at the left end of the connecting plate 3 moves downward synchronously during the movement of the sliding plate 2 to the left. When the height of the cavity 32 inside the cutting die 31 is lower than the height of the water storage cavity 41, the liquid inside the water storage cavity 41 will flow into the space inside the cavity 32. The inflow of liquid inside the cavity 32 can speed up the downward movement of the cutting die 31, and cooperate with the sliding plate 2 to quickly form a snap connection. When the cutter 34 at the right end needs to be replaced, the height of the cavity 32 at the right end is less than the height of the water storage cavity 41, and the liquid inside the water storage cavity 41 will flow into the space inside the cavity 32 at the right end. At the same time, at this time, the height of the cavity 32 at the left end is greater than the height of the water storage cavity 41, and the liquid in the space inside the cavity 32 at the left end flows into the space inside the water storage cavity 41, reducing the weight of the left end of the connecting plate 3 and speeding up the downward movement of the cutter 34 at the right end.

[0039] As an embodiment of the present invention, the side walls at both ends of the protective shell 1 are provided with second slide grooves 12; the second slide groove 12 is located above the first slide groove 11, and the two do not contact each other; the left and right ends of the second slide groove 12 are provided with positioning holes 13; the positioning holes 13 are designed to correspond to the cutting position of the cutter 34;

[0040] During operation, second slide grooves 12 are provided on the side walls at the front and rear ends of the protective shell 1, so that the cutting table can quickly install the protective shell 1. Since positioning holes 13 are provided at the left and right ends of the second slide groove 12, the positioning holes 13 are designed corresponding to the cutting position of the cutter 34. When the staff replaces the cutter 34, they fix the fixing bolts into the corresponding positioning holes 13 to position the cutter 34, thereby effectively preventing the cutter 34 from being offset during replacement and affecting the cutting effect of the packaging bag.

[0041] The specific operation process is as follows:

[0042] The sliding plate 2 is slidably connected to the upper surface of the connecting plate 3, so that the sliding plate 2 applies its own gravity to the surface of the connecting plate 3 during the left and right sliding process. In order to facilitate the movement of the sliding plate 2, a toggle rod 21 is fixedly connected to the surfaces of the front and rear ends of the sliding plate 2. When the toggle rod 21 is moved, the toggle rod 21 drives the sliding plate 2 to move synchronously, which is convenient for the staff to operate the moving direction of the sliding plate 2. At the same time, a first sliding groove 11 is opened on the side walls at the front and rear ends of the protective shell 1, so that the toggle rod 21 can move along the first sliding groove 11 slides, ensuring that the toggle rod 21 moves along a fixed line to avoid deviation during the movement of the toggle rod 21. Since the top of the support plate 4 is hinged with a connecting plate 3, both the left and right ends of the connecting plate 3 are hinged with cutting dies 31, and a cutting knife 34 is fixedly connected to the bottom of the cutting die 31, when the sliding plate 2 moves to the left, the connecting plate 3 tilts as the sliding plate 2 moves to the left, driving the cutting die 31 at the left end of the connecting plate 3 to move downward, so that the cutting knife 34 in the cutting die 31 at the left end protrudes out of the outer space of the protective shell 1, and the food packaging bag is cut. When the sliding plate 2 moves to the right, the connecting plate 3 tilts with the sliding plate 2 moving to the right, driving the cutting die 31 at the right end of the connecting plate 3 to move downward, so that the cutting knife 34 in the cutting die 31 at the right end protrudes out of the outer space of the protective shell 1 to cut the food packaging bag. Since the cutting knives 34 are fixedly connected to the left and right ends of the connecting plate 3, when the cutting knives 34 at the left end are worn, the toggle rod 21 is moved to the right to realize that the cutting knives 34 at the left end of the connecting plate 3 can be ejected and continue to work. The structure is simple, the operation is convenient, and the replacement of the cutting knives 34 can be effectively prolonged. The cycle is shortened, and the replacement time of the cutter 34 is shortened, and the production efficiency is improved simultaneously. The thickness of the sliding plate 2 is designed to be equal to the thickness between the connecting plate 3 and the protective shell 1 after the connecting plate 3 is attached to the inclined surface of the supporting plate 4, so that the sliding plate 2 can be effectively clamped between the connecting plate 3 and the protective shell 1 after moving and tilting, thereby preventing the cutter 34 from shaking when cutting the packaging bag. The herringbone design of the first slide groove 11 makes the toggle rod 21 completely stuck at the bottom of the first slide groove 11, further preventing the cutter 34 from shaking when cutting the packaging bag.

[0043] A threaded groove is provided on the surface of the toggle rod 21, and a tension handle 22 is rotatably connected to the surface of the threaded groove. When the toggle rod 21 is slid, the tension handle 22 is driven to move synchronously. When the sliding plate 2 is moved to the end of the first sliding groove 11, the tension handle 22 is rotated to fix the toggle rod 21. At the same time, the sliding plate 2 can be further fixed to prevent the cutter 34 from shaking during the cutting process.

[0044] A slot 33 is provided at the bottom of the cutting die 31, and a cutter 34 is clamped inside the slot 33. When the cutter 34 needs to be replaced, the cutter 34 inside the slot 33 is directly taken out from the slot 33 and replaced with a new cutter 34 without the need to use screws to fix it, which can effectively improve the efficiency of replacing the cutter 34. A rubber pad 35 is fixedly connected to the top of the slot 33 so that the top of the cutter 34 cannot directly contact the cutting die 31, thereby reducing the reaction force on the connecting plate 3 during the process of cutting the packaging bag by the cutter 34, reducing the vibration generated by the cutter 34 during cutting, and reducing the impact on the connecting plate 3.

[0045] By opening an air storage chamber 36 inside the rubber pad 35, and fixing and connecting the air storage chamber 36 with uniformly arranged springs 37, the reaction force received by the cutter 34 when cutting the packaging bag can be further reduced and directly transmitted to the connecting plate 3. Since the side walls at both ends of the protective shell 1 are provided with air grooves 14, the air grooves 14 are sealed and slidably connected to the limit blocks 15, and the air grooves 14 are connected to the air storage chamber 36 through an air pipe, when the cutter 34 cuts the packaging bag, the reaction force received is transmitted to the rubber pad 35, squeezing the The air storage chamber 36 inside the rubber pad 35 allows the air inside the air storage chamber 36 to be transmitted to the space inside the air groove 14 through the air pipe. Since the limit block 15 in the air groove 14 is in the space inside the air groove 14 in the initial state, when the gas inside the air storage chamber 36 is transmitted to the space inside the air groove 14 through the air pipe, the limit block 15 in the air groove 14 is driven to move upward and protrude from the air groove 14 to extend to the space inside the first slide groove 11, thereby limiting the toggle rod 21 and preventing the toggle rod 21 from moving when the cutter 34 is working.

[0046] A water storage cavity 41 is provided inside the support plate 4. By providing a cavity 32 inside the cutting die 31, the construction materials of the support plate 4 and the cutting die 31 can be effectively saved. The cavity 32 is connected to the water storage cavity 41 through a conduit 42. When the cutter 34 at the left end needs to be used, the cutting die 31 at the left end of the connecting plate 3 moves downward synchronously during the movement of the sliding plate 2 to the left. When the height of the cavity 32 inside the cutting die 31 is lower than the height of the water storage cavity 41, the liquid inside the water storage cavity 41 will flow into the space inside the cavity 32. As the cavity 34 is moved to the left, the liquid inside the water storage cavity 41 will flow into the space inside the cavity 32. 2, the inflow of internal liquid can accelerate the speed of the cutting die 31 moving downward, and cooperate with the sliding plate 2 to quickly form a snap connection. When the right end cutter 34 needs to be replaced, the height of the right end cavity 32 is less than the height of the water storage cavity 41, and the liquid in the water storage cavity 41 will flow into the space of the right end cavity 32. At the same time, the height of the left end cavity 32 is greater than the height of the water storage cavity 41, and the liquid in the space of the left end cavity 32 flows into the space of the water storage cavity 41 to reduce the weight of the left end of the connecting plate 3 and accelerate the downward movement of the right end cutter 34.

[0047] By opening a second slide groove 12 on the side walls at the front and rear ends of the protective shell 1, the cutting table can quickly install the protective shell 1. Since positioning holes 13 are opened at the left and right ends of the second slide groove 12, the positioning holes 13 are designed to correspond to the cutting position of the cutter 34. When the staff replaces the cutter 34, they can fix the fixing bolts into the corresponding positioning holes 13 to achieve the positioning of the cutter 34.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic food packaging machine, characterized in that: The invention comprises a support plate (4), a connecting plate (3) and a sliding plate (2); the support plate (4) is designed in a mountain shape; the top of the support plate (4) is hingedly connected to the connecting plate (3); the left and right ends of the connecting plate (3) are hingedly connected to cutting dies (31); the bottom of the cutting die (31) is fixedly connected to a cutting knife (34); the upper surface of the connecting plate (3) is slidably connected to the sliding plate (2), and the sliding plate (2) is designed in a trapezoidal shape; the upper surface of the sliding plate (2) is provided with a protective shell (1), and the protective shell (1) is designed in a rectangular shape; The thickness of the sliding plate (2) is equal to the thickness between the connecting plate (3) and the protective shell (1) after the connecting plate (3) is attached to the inclined surface of the supporting plate (4); the distance between the protective shell (1) and the supporting plate (4) is equal to the thickness of the cutting die (31); the front and rear ends of the protective shell (1) are both provided with a first sliding groove (11), and the first sliding groove (11) is designed in a herringbone shape; the first sliding groove (11) is designed to match the sliding track of the sliding plate (2); a toggle rod (21) is fixedly connected to the middle of the sliding plate (2); the toggle rod (21) moves in the first sliding groove (11), and when the toggle rod (21) moves to the bottom of the first sliding groove (11), the sliding plate (2) is tightly attached to the inclined surface of the supporting plate (4) and is located between the connecting plate (3) and the protective shell (1).

2. The automatic food packaging machine according to claim 1, characterized in that: A thread groove is formed on the surface of the toggle rod (21); a tightening handle (22) is rotatably connected to the surface of the thread groove, and the tightening handle (22) is located in the outer space of the protective shell (1).

3. The automatic food packaging machine according to claim 1, characterized in that: The bottom of the knife die (31) is provided with a slot (33), and the slot (33) is designed in a T shape; the slot (33) and the cutter (34) are designed correspondingly, and the cutter (34) is snap-connected in the slot (33); and a rubber pad (35) is fixedly connected to the top of the slot (33).

4. The automatic food packaging machine according to claim 3, characterized in that: An air storage cavity (36) is provided inside the rubber pad (35); springs (37) are fixedly connected to the inside of the air storage cavity (36) and are evenly arranged; air grooves (14) are provided on the side walls at both the front and rear ends of the protective shell (1), and the air grooves (14) are located at the left and right ends of the first slide groove (11); the air groove (14) is sealed and slidably connected to a limit block (15); the limit block (15) is connected to the space inside the first slide groove (11) at one end away from the air groove (14); the air groove (14) and the air storage cavity (36) are connected through an air pipe.

5. The automatic food packaging machine according to claim 4, characterized in that: The support plate (4) is provided with a water storage cavity (41) inside, and the water storage cavity (41) is filled with liquid; the knife mold (31) is provided with a cavity (32) inside, and the cavity (32) is located above the cutting knife (34); the cavity (32) and the water storage cavity (41) are connected through a conduit (42).

6. The automatic food packaging machine according to claim 5, characterized in that: The side walls at the front and rear ends of the protective shell (1) are each provided with a second slide groove (12); the second slide groove (12) is located above the first slide groove (11), and the two do not contact each other; the left and right ends of the second slide groove (12) are each provided with a positioning hole (13); the positioning hole (13) and the cutting position of the cutter (34) are designed to correspond.

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