CN112013931B

CN112013931B - Weighing device for food packaging

Info

Publication number: CN112013931B
Application number: CN202011114888.3A
Authority: CN
Inventors: 张敏
Original assignee: New Sanhe Yantai Foods Co ltd
Current assignee: New Sanhe Yantai Foods Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-02-19
Anticipated expiration: 2040-10-19
Also published as: CN112013931A

Abstract

The invention discloses a weighing device for food packaging, and particularly relates to the technical field of food weighing devices, wherein the weighing device comprises a base, wherein a weighing component is fixedly arranged at the top of the base; the utility model discloses a weighing device, including the type of falling U mount, the type of falling U mount welds on the base, the type of falling U mount top is run through and is equipped with the bearing, the bearing inboard is run through and is equipped with the montant, the fixed cover of montant one end has connect first gear, the type of falling U mount inboard is located to first gear, the type of falling U mount top inboard is fixed and is equipped with servo motor. The food weighing device can quickly weigh food, avoids the situation that food is spilled and wasted during feeding, quickly drops the food into a packaging box or a packaging bag, avoids the problem that the feeding amount is inaccurate due to delayed closing of a feeder caused by the fact that the food has too long motion track in the air and the weighing result is delayed, and improves the weighing accuracy.

Description

Weighing device for food packaging

Technical Field

The invention relates to the technical field of food weighing devices, in particular to a weighing device for food packaging.

Background

The food refers to various finished products and raw materials for people to eat or drink and articles which are traditionally both food and traditional Chinese medicinal materials, and generally the food can be divided into two major parts, namely an endogenous substance component and an exogenous substance component, wherein the endogenous substance component is a component of the food, the exogenous substance component is other components which are artificially added or mixed in the whole process from processing to ingestion of the food, and the components of the food can be roughly divided into eight types according to the content of the food components, namely protein, fat, saccharides, inorganic substances, vitamins, chitin, diet, cellulose and the like.

Food is in the course of working, need pack, in order to make things convenient for the sale in later stage, need use weighing device during the packing, generally directly place packing carton or wrapping bag on the weighing apparatus, later unloading is weighed on one side, the problem that exists like this, because packing carton and wrapping bag specification differ, if the packing carton is lower, it is far away from the feed opening, then take place to spill extravagant the condition when can make the unloading, and because food leads to weighing the result delay in the orbit overlength of moving in the air, and make the unsafe problem of unloading volume that the glassware postpones to close the production down.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a weighing device for food packaging, wherein a weighing device is used to lift a packaging box or a packaging bag at the top of a support block and food for rapid weighing, and the packaging box or the packaging bag is driven by the support block to a position close to a feeder, so that food is prevented from being spilled and wasted during feeding, and the food can fall into the packaging box or the packaging bag rapidly, thereby preventing the problem of inaccurate feeding amount caused by delayed closing of the feeder due to an excessively long moving track of the food in the air, and improving the weighing accuracy, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a weighing device for food packaging comprises a base, wherein a weighing component is fixedly arranged at the top of the base;

the weighing assembly comprises an inverted U-shaped fixing frame, the inverted U-shaped fixing frame is welded on a base, a bearing is arranged at the top of the inverted U-shaped fixing frame in a penetrating manner, a vertical rod is arranged at the inner side of the bearing in a penetrating manner, a first gear is fixedly sleeved at one end of the vertical rod and is arranged at the inner side of the inverted U-shaped fixing frame, a servo motor is fixedly arranged at the inner side of the top of the inverted U-shaped fixing frame, a second gear is fixedly arranged on an output shaft of the servo motor and is meshed with the first gear, a first fixing plate is welded at the top of the vertical rod, an oval fixing frame is welded on the first fixing plate, a circular trapezoid limiting ring is fixedly arranged at the inner side of the oval fixing frame, the circular trapezoid limiting ring is divided into two parts, a first air cylinder is fixedly arranged at the top of the base, the fixed weighing apparatus that is equipped with on the fixed subassembly, the fixed first layer board that is equipped with in weighing apparatus top, first layer board top is equipped with the second layer board, second layer board top welding has the support column, support column top welding has the circular trapezoid stopper, the circular trapezoid stopper is placed in the circular trapezoid stopper, circular trapezoid stopper top welding has the bearing piece, the fixed first bracing piece that is equipped with in base top, the fixed head rod that is equipped with in first bracing piece one side, the glassware under fixed being equipped with on the head rod, the bearing piece top is located to the glassware down, the fixed second connecting rod that is equipped with in first bracing piece one side, fixed proximity sensor and the PLC controller of being equipped with on the second connecting rod, the fixed second bracing piece that is equipped with in base top, the fixed sealer that is equipped with on the second bracing piece.

In a preferred embodiment, first supporting strips are welded on two sides of the supporting block, a first pin shaft penetrates through one end, far away from the supporting block, of each first supporting strip, and a second cylinder is welded on each first pin shaft.

In a preferred embodiment, a positioning lath is fixedly arranged on the first pin output shaft, and a bag clamping device is fixedly arranged on one side of the positioning lath, which is far away from the second cylinder.

In a preferred embodiment, a first connecting block is fixedly arranged on the second cylinder, a second pin shaft penetrates through the first connecting block, a second connecting block is fixedly arranged on the second pin shaft, and a third cylinder is fixedly arranged on the second connecting block.

In a preferred embodiment, the holding tank has all been seted up to bearing piece both sides, fixed third round pin axle that is equipped with on the holding tank inner wall, third connecting block has been cup jointed on the third round pin axle, the third cylinder is fixed to be located on the third connecting block.

In a preferred embodiment, the fixing assembly includes a second fixing plate, two L-shaped clamping blocks are fixedly arranged at the top of the second fixing plate, positioning blocks are fixedly arranged on both sides of the scale, and the positioning blocks are arranged on the inner sides of the L-shaped clamping blocks.

In a preferred embodiment, a limiting groove is formed in one side, close to the L-shaped clamping block, of the positioning block, a second supporting bar is fixedly arranged at the top of the second fixing plate, a limiting rod penetrates through the second supporting bar, one end of the limiting rod penetrates through the L-shaped clamping block, and one end of the limiting rod is arranged inside the limiting groove.

In a preferred embodiment, the stop lever is fixedly sleeved with a check ring, the stop lever is sleeved with a spring, the spring is arranged between the second support bar and the check ring, and one end of the stop lever, which is far away from the check ring, is welded with a pull ring.

The invention has the technical effects and advantages that:

1. the packing box or the packing bag at the top of the bearing block and food are supported by the weighing device to be quickly weighed, and the packing box or the packing bag is driven by the bearing block to a position close to the feeder, so that the situation of food spill waste during feeding is avoided, the food can quickly fall into the packing box or the packing bag, the problem of inaccurate feeding amount caused by delayed closing of the feeder due to delayed weighing result caused by overlong motion track of the food in the air is avoided, the weighing accuracy is improved, the circular trapezoid limiting ring has a guiding and positioning effect on the bearing block, the quick sealing operation is conveniently performed when the packing box or the packing bag moves to the position of the sealer at the later stage, and the production efficiency is improved;

2. the second cylinder works to drive the positioning plate strips on the second cylinder to move, so that the packaging boxes with different sizes are positioned when being placed, the second cylinder is pulled to swing through the work of the third cylinder, and the distance between the bag clamping device and the bearing block is changed through the work of the second cylinder, so that the packaging bags with different lengths can be adapted, the packaging boxes and the packaging bags can be conveniently installed, the blanking accuracy is improved, and the stability in working is improved;

3. the limiting rod on the pulling ring is driven to move by pulling the pulling ring, so that the weighing device can be directly taken down and replaced, the operation is simple and convenient, the weighing device can be quickly replaced, and the production stability is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic front view of the elliptical fixing frame according to the present invention.

Fig. 3 is a schematic front view of the support column of the present invention.

Figure 4 is a schematic view of the front view of the supporting block of the present invention.

Fig. 5 is an enlarged view of a portion a of fig. 3 according to the present invention.

Fig. 6 is a schematic perspective view of the elliptical fixing frame according to the present invention.

Figure 7 is a top view of the support block of the present invention.

Fig. 8 is a system diagram of the present invention.

The reference signs are: 1. a base; 2. a weighing assembly; 3. an inverted U-shaped fixing frame; 4. a bearing; 5. a vertical rod; 6. a first gear; 7. a servo motor; 8. a second gear; 9. a first fixing plate; 10. an elliptical fixing frame; 11. a circular trapezoid limiting ring; 12. a first cylinder; 13. a fixing assembly; 14. a scale; 15. a first pallet; 16. a second pallet; 17. a support pillar; 18. a circular trapezoidal limiting block; 19. a bearing block; 20. a first support bar; 21. a first connecting rod; 22. a blanking device; 23. a second connecting rod; 24. a proximity sensor; 25. a PLC controller; 26. a second support bar; 27. a sealer; 28. a first support bar; 29. a first pin shaft; 30. a second cylinder; 31. positioning the lath; 32. a bag clamp; 33. a first connection block; 34. a second pin shaft; 35. a second connecting block; 36. a third cylinder; 37. accommodating grooves; 38. a third pin shaft; 39. a third connecting block; 40. a second fixing plate; 41. an L-shaped clamping block; 42. positioning blocks; 43. a limiting groove; 44. a second supporting strip; 45. a limiting rod; 46. a retainer ring; 47. a spring; 48. and (4) a pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The weighing device for food packaging as shown in the attached figures 1, 2, 3, 6 and 8 comprises a base 1, wherein a weighing component 2 is fixedly arranged at the top of the base 1;

the weighing assembly 2 comprises an inverted U-shaped fixing frame 3, the inverted U-shaped fixing frame 3 is welded on a base 1, a bearing 4 penetrates through the top of the inverted U-shaped fixing frame 3, a vertical rod 5 penetrates through the inner side of the bearing 4, a first gear 6 is fixedly sleeved at one end of the vertical rod 5, the first gear 6 is arranged on the inner side of the inverted U-shaped fixing frame 3, a servo motor 7 is fixedly arranged on the inner side of the top of the inverted U-shaped fixing frame 3, a second gear 8 is fixedly arranged on an output shaft of the servo motor 7, the second gear 8 is meshed with the first gear 6, a first fixing plate 9 is welded at the top of the vertical rod 5, an oval fixing frame 10 is welded on the first fixing plate 9, a round trapezoid limiting ring 11 is fixedly arranged on the inner side of the oval fixing frame 10, the number of the round trapezoid limiting ring 11 is two, and a, the number of the first air cylinders 12 is two, the top of the first air cylinder 12 is fixedly provided with a fixing component 13, the fixing component 13 is fixedly provided with a scale 14, the top of the scale 14 is fixedly provided with a first supporting plate 15, the top of the first supporting plate 15 is provided with a second supporting plate 16, the top of the second supporting plate 16 is welded with a supporting column 17, the top of the supporting column 17 is welded with a circular trapezoid limiting block 18, the circular trapezoid limiting block 18 is placed in a circular trapezoid limiting ring 11, the top of the circular trapezoid limiting block 18 is welded with a supporting block 19, the top of the base 1 is fixedly provided with a first supporting rod 20, one side of the first supporting rod 20 is fixedly provided with a first connecting rod 21, the first connecting rod 21 is fixedly provided with a blanking device 22, the blanking device 22 is arranged at the top of the supporting block 19, one side of the first supporting rod 20 is fixedly provided with a second connecting rod 23, the second connecting rod 23 is fixedly provided with a proximity sensor 24, the top of the base 1 is fixedly provided with a second supporting rod 26, the second supporting rod 26 is fixedly provided with a sealing device 27, the model of the PLC 25 is M68HC16, and the PLC is an electronic device which is specially designed for digital operation in industrial environment. The proximity sensor 24 is a device with the capability of sensing the approach of an object, and utilizes the sensitive characteristic of a displacement sensor to the approaching object to identify the approach of the object and output a corresponding switch signal.

The implementation mode is specifically as follows: when the packaging box or the packaging bag is used, the packaging box or the packaging bag is arranged at the top of the bearing block 19, then the servo motor 7 rotates to drive the second gear 8 and the first gear 6 on the bearing block to rotate, and further the vertical rod 5 is driven to rotate, so that the oval fixing frame 10 swings to drive the packaging box or the packaging bag on the bearing block 19 to move to the bottom of the blanking device 22, then the first air cylinder 12 works to drive the scale 14 and the first supporting plate 15 on the oval fixing frame to move upwards, so as to push the second supporting plate 16, the supporting column 17, the circular trapezoid limiting block 18 and the supporting block 19 to move upwards, and further the packaging box or the packaging bag moves towards the direction close to the blanking device 22, when the packaging box or the packaging bag is very close to the blanking device 22, the proximity sensor 24 sends a sensing signal to the PLC 25, so that the PLC 25 controls the first air cylinder 12 to stop working, and then the packaging box or, in the process, the weighing device 14 supports the second supporting plate 16 and the components thereon, so that the packaging box or the packaging bag and the food at the top of the supporting block 19 can be weighed quickly, the packaging box or the packaging bag is driven by the supporting block 19 to a position close to the feeder 22, the situation that the food is spilled and wasted during feeding is avoided, the food can fall into the packaging box or the packaging bag quickly, the problem that the feeding amount is inaccurate due to delayed closing of the feeder 22 because the food is delayed due to overlong motion track in the air is avoided, the weighing accuracy is improved, the circular trapezoid limiting ring 11 has the guiding and positioning effect on the supporting block 19, after the weighing operation is completed, the packaging box or the packaging bag cannot be displaced, the quick sealing operation is convenient when the packaging box or the packaging bag is moved to the position of the sealing device 27 in the later period, and the production efficiency is improved, the two weighing machines 14 are arranged to repeat weighing before sealing, and weighing accuracy is further improved.

The weighing device for food packaging as shown in fig. 1, 3, 4, 7 and 8 further comprises a first supporting strip 28, the first supporting strip 28 is welded on two sides of the supporting block 19, one end of the first supporting strip 28, which is far away from the supporting block 19, is provided with a first pin 29 in a penetrating manner, and a second air cylinder 30 is welded on the first pin 29 so as to drive the positioning lath 31 and the bag holder 32 to move;

a positioning lath 31 is fixedly arranged on the output shaft of the first pin shaft 29, and a bag clamping device 32 is fixedly arranged on one side of the positioning lath 31, which is far away from the second cylinder 30, so as to fix a packaging bag and limit the packaging box;

a first connecting block 33 is fixedly arranged on the second cylinder 30, a second pin shaft 34 is arranged on the first connecting block 33 in a penetrating mode, a second connecting block 35 is fixedly arranged on the second pin shaft 34, and a third cylinder 36 is fixedly arranged on the second connecting block 35, so that the third cylinder 36 works to pull the second cylinder 30 to swing;

holding tank 37 has all been seted up to bearing block 19 both sides, fixed third round pin axle 38 that is equipped with on the holding tank 37 inner wall, third connecting block 39 has been cup jointed on third round pin axle 38, third cylinder 36 is fixed to be located on third connecting block 39 to fixed third cylinder 36.

The implementation mode is specifically as follows: the work of second cylinder 30 drives the motion of the location lath 31 on it, two location laths 31 move and change relative distance and can realize the location when putting the not packing carton of equidimension, guaranteed that the not packing carton of equidimension can both fix a position fast and put in suitable position, use first round pin axle 29 swing as the center through 36 work pulling second cylinders 30 of third cylinder, thereby make second cylinder 30 stand, later clip the wrapping bag through the clamp bag ware 32 that sets up, and change the distance between clamp bag ware 32 and the bearing piece 19 through the work of second cylinder 30, thereby the wrapping bag of the different length of adaptation, installation packing carton and wrapping bag that can be convenient, further avoided because of packing carton and white bagging-off place not accurate and lead to food can not accurately pack its inside condition emergence, the stability of during operation has been improved.

As shown in fig. 1, 3 and 5, the weighing device for food packaging further comprises a second fixing plate 40, wherein two L-shaped clamping blocks 41 are fixedly arranged at the top of the second fixing plate 40, positioning blocks 42 are fixedly arranged on two sides of the weighing device 14, and the positioning blocks 42 are arranged on the inner sides of the L-shaped clamping blocks 41 so as to install the weighing device 14;

a limiting groove 43 is formed in one side, close to the L-shaped clamping block 41, of the positioning block 42, a second supporting bar 44 is fixedly arranged at the top of the second fixing plate 40, a limiting rod 45 penetrates through the second supporting bar 44, one end of the limiting rod 45 penetrates through the L-shaped clamping block 41, and one end of the limiting rod 45 is arranged inside the limiting groove 43, so that the positioning block 42 is locked to fix the weighing device 14;

fixed cover has been connected with retaining ring 46 on the gag lever post 45, spring 47 has been cup jointed on the gag lever post 45, spring 47 locates between second support bar 44 and the retaining ring 46, gag lever post 45 keeps away from retaining ring 46 one end welding has pull ring 48 to pulling pull ring 48 and drive gag lever post 45 and deviate from spacing groove 43.

The implementation mode is specifically as follows: through pulling the pull ring 48 and drive the gag lever post 45 motion above that, thereby make 5 one end of montant deviate from the spacing groove 43, make locating piece 42 remove spacingly, and then can take out from L type clamp splice 41 inboard, make weighing apparatus 14 can directly take off, later insert L type clamp splice 41 inboard with the locating piece 42 of other weighing apparatus 14 both sides, and insert in the spacing groove 43 through gag lever post 45, can accomplish the dismantlement and the installation of weighing apparatus 14, and easy operation is convenient, when making weighing apparatus 14 break down and need to be changed, can change fast, the stability of production has been guaranteed.

The working principle of the invention is as follows:

referring to the attached

drawings

1, 2, 3, 6 and 8 of the specification, when the second supporting plate 16 and the components thereon are lifted up by the weighing device 14, the packaging box or the packaging bag on the top of the supporting block 19 and the food can be weighed quickly, and the packaging box or the packaging bag is driven to the position close to the feeder 22 by the supporting block 19, so that the situation that the food is spilled and wasted during feeding is avoided, the food can fall into the packaging box or the packaging bag quickly, the problem that the feeding amount is inaccurate due to delayed closing of the feeder 22 caused by the overlong motion track of the food in the air is avoided, the weighing accuracy is improved, and the circular trapezoid limiting ring 11 has the effect of guiding and positioning on the supporting block 19, so that the packaging box or the packaging bag cannot shift after the weighing operation is finished, and the rapid sealing operation is convenient when the packaging box or the packaging bag moves to the position of the sealer 27 in the later period, the production efficiency is improved, the two weighing machines 14 can repeat weighing before sealing, and the weighing accuracy is further improved;

referring to the attached

drawings

1, 3, 4, 7 and 8 of the specification, the second cylinder 30 works to drive the positioning laths 31 on the second cylinder to move, the two positioning laths 31 move to change the relative distance so as to realize the positioning when the packaging boxes with different sizes are placed, the third cylinder 36 works to pull the second cylinder 30 to swing by taking the first pin shaft 29 as the center, so that the second cylinder 30 stands, the second cylinder 30 works to change the distance between the bag clamping device 32 and the bearing block 19, so that the packaging bags with different lengths can be adapted, the packaging boxes and the packaging bags can be conveniently installed, the situation that food cannot be accurately placed in the packaging boxes and the packaging bags due to inaccurate placement is further avoided, and the stability in working is improved;

referring to the attached

drawings

1, 3 and 5 in the specification, the limiting rod 45 on the pulling ring 48 is driven to move by pulling the pulling ring 48, so that the weighing device 14 can be directly taken down, then the positioning blocks 42 on two sides of other weighing devices 14 are inserted into the inner sides of the L-shaped clamping blocks 41, and the limiting rod 45 is inserted into the limiting groove 43, so that the dismounting and mounting of the weighing device 14 can be completed, the operation is simple and convenient, the weighing device 14 can be quickly replaced, and the production stability is ensured.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a weighing device for food package, includes base (1), its characterized in that: the top of the base (1) is fixedly provided with a weighing component (2);

the weighing assembly (2) comprises an inverted U-shaped fixing frame (3), the inverted U-shaped fixing frame (3) is welded on the base (1), a bearing (4) penetrates through the top of the inverted U-shaped fixing frame (3), a vertical rod (5) penetrates through the inner side of the bearing (4), a first gear (6) is fixedly sleeved at one end of the vertical rod (5), the first gear (6) is arranged on the inner side of the inverted U-shaped fixing frame (3), a servo motor (7) is fixedly arranged on the inner side of the top of the inverted U-shaped fixing frame (3), a second gear (8) is fixedly arranged on an output shaft of the servo motor (7), the second gear (8) is meshed with the first gear (6), a first fixing plate (9) is welded at the top of the vertical rod (5), an elliptic fixing frame (10) is welded on the first fixing plate (9), and a circular trapezoid limiting ring (11) is fixedly arranged on the inner side of the elliptic, the device comprises two circular trapezoid limiting rings (11), a first air cylinder (12) is fixedly arranged at the top of a base (1), the number of the first air cylinders (12) is two, a fixing component (13) is fixedly arranged at the top of the first air cylinder (12), a weighing device (14) is fixedly arranged on the fixing component (13), a first supporting plate (15) is fixedly arranged at the top of the weighing device (14), a second supporting plate (16) is arranged at the top of the first supporting plate (15), a supporting column (17) is welded at the top of the second supporting plate (16), a circular trapezoid limiting block (18) is welded at the top of the supporting column (17), the circular trapezoid limiting block (18) is placed in the circular trapezoid limiting ring (11), a supporting block (19) is welded at the top of the circular trapezoid limiting block (18), a first supporting rod (20) is fixedly arranged at the top of the base (1), a first connecting rod (21) is fixedly arranged at one side of the first supporting rod (20), fixed glassware (22) down of being equipped with on head rod (21), supporting block (19) top is located in glassware (22) down, first bracing piece (20) one side is fixed and is equipped with second connecting rod (23), fixed proximity sensor (24) and PLC controller (25) of being equipped with on second connecting rod (23), base (1) top is fixed and is equipped with second bracing piece (26), fixed sealer (27) of being equipped with on second bracing piece (26).

2. The weighing device for food packaging according to claim 1, wherein: first supporting strips (28) are welded on two sides of the supporting block (19), one end, far away from the supporting block (19), of each first supporting strip (28) penetrates through a first pin shaft (29), and a second cylinder (30) is welded on each first pin shaft (29).

3. The weighing device for food packaging according to claim 2, wherein: a positioning lath (31) is fixedly arranged on an output shaft of the first pin shaft (29), and a bag clamping device (32) is fixedly arranged on one side, far away from the second cylinder (30), of the positioning lath (31).

4. The weighing device for food packaging according to claim 3, wherein: the fixed first connecting block (33) that is equipped with on second cylinder (30), run through on first connecting block (33) and be equipped with second round pin axle (34), fixed second connecting block (35) that is equipped with on second round pin axle (34), fixed third cylinder (36) that is equipped with on second connecting block (35).

5. The weighing device for food packaging according to claim 4, wherein: holding tank (37) have all been seted up to bearing block (19) both sides, fixed third round pin axle (38) that is equipped with on holding tank (37) inner wall, third connecting block (39) have been cup jointed on third round pin axle (38), third cylinder (36) are fixed to be located on third connecting block (39).

6. The weighing device for food packaging according to claim 1, wherein: fixed subassembly (13) include second fixed plate (40), the fixed L type clamp splice (41) that is equipped with in second fixed plate (40) top, L type clamp splice (41) set up to two, all fixed locating piece (42) that are equipped with in weigher (14) both sides, L type clamp splice (41) inboard is located in locating piece (42).

7. The weighing device for food packaging according to claim 6, wherein: locating piece (42) are close to L type clamp splice (41) one side and have seted up spacing groove (43), the fixed second support bar (44) that is equipped with in second fixed plate (40) top, it is equipped with gag lever post (45) to run through on second support bar (44), gag lever post (45) one end runs through on locating L type clamp splice (41), inside spacing groove (43) is located to gag lever post (45) one end.

8. The weighing device for food packaging according to claim 7, wherein: fixed cover has connect retaining ring (46) on gag lever post (45), spring (47) have been cup jointed on gag lever post (45), second support bar (44) and retaining ring (46) are located in spring (47) between, retaining ring (46) one end welding has pull ring (48) is kept away from in gag lever post (45).