A scraper type combination weigher

Abstract

The present invention discloses a scraper-type combination weigher, comprising a machine base, a step is provided at the middle position of the machine base, a material receiving trough is provided around the edge of the step, a material receiving port is provided on the material receiving trough, a material collecting device is provided on the material receiving port, a material receiving rotating device is provided on the step, and the material receiving rotating device comprises a rotating support arm, a driving mechanism and a scraper, the scraper is provided at one end of the rotating support arm, the driving mechanism is installed at the other end of the rotating support arm, the scraper is placed in the material receiving trough, the driving mechanism rotates the rotating support arm so that the scraper scrapes back and forth in the material receiving trough, the scraper scrapes to the material receiving port and is collected by the collecting device, the sticky material is put into the material receiving trough after being weighed, and then is collected to the material receiving rotating device by the scraper, so that the sticky material will not stick to the inner wall surface of the packaging equipment, the conveyor belt and other positions, thereby improving the collection efficiency.

Description

Technical field:

[0001] The present invention relates to the field of combination weighers, in particular to a scraper-type combination weigher. Background technology:

[0002] In the food packaging industry, combination weighers are often used for weighing and packaging granular materials such as grains, beans, puffed foods, and candies. These granular materials are typically distinct, dry, or coated with anti-stick powder, making them easy to count and combine or weigh. Furthermore, for larger, strip-shaped materials such as radish and corn, counting and combining methods can also be used for convenient packaging.

[0003] With the development of the fresh food industry, fresh foods such as sashimi and sliced ​​meat have also been packaged and shipped, eliminating the need for on-site processing at fresh food markets. Because these fresh foods are sticky, with irregular shapes and prone to sticking to their surfaces, separating these sticky materials during the packaging process can be difficult. In some cases, manual refilling and calibration are even required, which is inefficient. Furthermore, sticky materials can easily adhere to the inner walls of packaging equipment, conveyor belts, and other surfaces, hindering packaging. Summary of the invention:

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a scraper type combination weigher, which can solve the problem in the prior art that sticky materials are easily adhered to the inner wall surface, conveyor belt and other positions of the packaging equipment, affecting the packaging.

[0005] The purpose of the present invention is achieved through the following technical solutions.

[0006] The object of the present invention is to provide a scraper type combination weigher, comprising a machine base, a step is provided in the middle position of the machine base, a material receiving trough is provided around the edge of the step, a material receiving port is provided on the material receiving trough, a material collecting device is provided on the material receiving port, a material receiving rotating device is provided on the step, the material receiving rotating device comprises a rotating arm, a driving mechanism and a scraper, the scraper is provided at one end of the rotating arm, the driving mechanism is installed at the other end of the rotating arm, the scraper is placed in the material receiving trough, the driving mechanism allows the rotating arm to rotate so that the scraper scrapes back and forth in the material receiving trough, and the scraper scrapes to the material receiving port and is collected by the collecting device.

[0007] Preferably, there are two material receiving troughs, and the shape of the two material receiving troughs is a semicircular structure. The two material receiving troughs are mirror-imaged and located on the edge of the step, and the material receiving port is located at the diagonal position of the step.

[0008] Preferably, the rotating support arm includes a front arm and a rear arm, the front arm is provided with a slider fixed thereon, the slider is provided with a through hole, and the rear arm is inserted into the through hole to be movable and retractable.

[0009] Preferably, the driving mechanism includes a pneumatic rod, a rack and a gear, the gear is mounted on the rotating arm, the teeth on the rack are located on both sides and engage with the gears on both sides, the pneumatic rod is mounted on one side of the rack and pushes or retracts the rack forward or backward.

[0010] Preferably, buffer portions are provided at both ends of the rack.

[0011] Preferably, guide wheels are provided on both sides of the scraper.

[0012] Preferably, a hopper rack is provided at the upper part of the material receiving trough, and a plurality of weighing hopper mechanisms are provided on the periphery of the hopper rack. The weighing hopper mechanisms include an upper storage hopper for storing materials and a flip hopper scale for weighing.

[0013] Preferably, the material collection device includes a first pushing module, a blocking module, a second pushing module, a scraping module and a poking component. The first pushing module is located in the material receiving port and moves back and forth. The first pushing module is used to push the material onto the second pushing module. The blocking module moves left and right on the first pushing module. A material collection port is provided on the material collection device. The second pushing module moves left and right on the material collection port. The scraping module is located on the second pushing module and moves left and right to send the material into the material collection port. The poking component is located at the upper position of the material collection port and moves up and down toward the material collection port.

[0014] Preferably, a feeding mechanism is provided on the step, and a feeding trough corresponding to the hopper rack is provided on the feeding mechanism, and the feeding troughs are arranged around the axial position of the feeding mechanism, and a feeding variable pitch screw is provided in the feeding trough, and a plurality of first motors are provided in the feeding mechanism, and the first motors drive the feeding variable pitch screw to rotate, and a conical cover is provided between the feeding troughs.

[0015] Preferably, an upper cover is provided on the feeding mechanism, a swing rod is provided at the top position of the upper cover, a second motor is provided inside the upper cover, the second motor is connected to the swing rod and drives the swing rod to rotate, and an outer frame is provided on the periphery of the upper cover.

[0016] Compared with the prior art, the present invention has the following effects:

[0017] 1) The present invention describes a scraper type combination weigher, comprising a machine base, a step is provided in the middle position of the machine base, a material receiving trough is provided around the edge of the step, a material receiving port is provided on the material receiving trough, a material collecting device is provided on the material receiving port, a material receiving rotating device is provided on the step, and the material receiving rotating device comprises a rotating support arm, a driving mechanism and a scraper, the scraper is provided at one end of the rotating support arm, the driving mechanism is installed at the other end of the rotating support arm, the scraper is placed in the material receiving trough, the driving mechanism rotates the rotating support arm so that the scraper scrapes back and forth in the material receiving trough, the scraper scrapes to the material receiving port and is collected by the material collecting device, the sticky material is put into the material receiving trough after being weighed, and then collected to the material receiving rotating device by the scraper, and will not stick to the inner wall surface of the packaging equipment, the conveyor belt and other positions, thereby improving the collection efficiency.

[0018] 2) Other advantages of the present invention are described in detail in the embodiment section of the specification. Description of the drawings:

[0019] Figure 1 is a three-dimensional diagram of a scraper-type combination weigher provided in an embodiment of the present invention;

[0020] Figure 2 is a three-dimensional diagram of a scraper-type combination weigher provided in an embodiment of the present invention;

[0021] Figure 3 This is an exploded view of a scraper-type combination weigher provided in an embodiment of the present invention;

[0022] Figure 4 is a three-dimensional diagram of a scraper-type combination weigher provided in an embodiment of the present invention;

[0023] Figure 5 is a perspective view of a material receiving and rotating device provided in an embodiment of the present invention;

[0024] Figure 6 is a perspective view of a material receiving and rotating device provided in an embodiment of the present invention;

[0025] Figure 7 is a perspective view of a material receiving and rotating device provided in an embodiment of the present invention;

[0026] Figure 8 is a perspective view of a material collecting device provided by an embodiment of the present invention;

[0027] Figure 9 It is a three-dimensional diagram of the material collecting device provided in an embodiment of the present invention. Specific implementation method:

[0028] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] like Figure 1 As shown, this embodiment provides a scraper type combination weigher, including a machine base 1, a step 11 is provided in the middle position of the machine base 1, a material receiving trough 12 is provided around the edge of the step 11, a material receiving port 13 is provided on the material receiving trough 12, a material collecting device 2 is provided on the material receiving port 13, and the material collecting device 2 is used for collecting and packaging. A material receiving rotating device 3 is provided on the step 11, and the material receiving rotating device 3 includes a rotating support arm 31, a driving mechanism 32 and a scraper 33, and the scraper 33 is provided on the rotating support arm 31. At one end, the driving mechanism 32 is installed at the other end of the rotating support arm 31, and the scraper 33 is placed in the receiving trough 12. The driving mechanism 32 allows the rotating support arm 31 to rotate, so that the scraper 33 scrapes back and forth in the receiving trough 12. The scraper 33 scrapes to the receiving port 13 and is collected by the collecting device 2. The sticky material is put into the receiving trough 12 after being weighed, and then collected to the collecting device 2 by the scraper 33. The sticky material will not stick to the inner wall surface of the packaging equipment, the conveyor belt and other positions, thereby improving the collection efficiency.

[0032] like Figure 2As shown, there are two receiving troughs 12, and the shape of the two receiving troughs 12 is a semicircular structure. The two receiving troughs 12 are mirror-imaged and located on the edge of the step 11. The receiving port 13 is located at the diagonal position of the step 11. The two scrapers 33 scrape back and forth synchronously in their respective receiving troughs 12, so that two-way collection can be achieved and the collection efficiency is improved.

[0033] like Figure 5-6 As shown, the rotating support arm 31 includes a front arm 311 and a rear arm 312. A slider 313 is fixed on the front arm 311, and a through hole is provided on the slider 313. The rear arm 312 is inserted into the through hole and can be movably extended and retracted. The shape of the material receiving trough 12 is close to a semicircular shape, and the distance from the axis will be different. Therefore, the telescopic structure can be extended and retracted within a certain range to solve such problems.

[0034] like Figure 7 As shown, the driving mechanism 32 includes a pneumatic rod 321, a rack 322 and a gear 323. The gear 323 is installed on the rotating support arm 31. The teeth on the rack 322 are located on both sides and mesh with the gears 323 on both sides. The pneumatic rod 321 is installed on one side of the rack 322 and pushes or retracts the rack 322 forward or backward, which can reduce space and effectively allow the material collecting rotating device 3 to rotate synchronously.

[0035] Furthermore, buffer portions 34 are provided at both ends of the rack 322 , and the buffer portions 34 can limit the moving distance of the rack 322 to prevent the rack 322 from being damaged by collision.

[0036] Furthermore, guide wheels 331 are provided on both sides of the scraper 33. The guide wheels 331 can prevent the scraper 33 from colliding with the side of the material receiving trough 12, making the movement smoother.

[0037] like Figure 4 As shown, a hopper frame 4 is provided at the upper part of the material receiving trough 12, and a plurality of weighing hopper mechanisms 5 are provided on the periphery of the hopper frame 4. The weighing hopper mechanism 5 includes an upper storage hopper 51 for storing materials and a tipping hopper scale 52 for weighing. The storage hopper 51 for storing materials is opened and the materials fall into the tipping hopper scale 52 for weighing. The multi-head combination weigher selects a certain number of hoppers from the weighing tipping hoppers according to the set target weight value, arranges and combines them, and selects the hopper closest to the target weight value through program control algorithm calculation to tip over, and drops the materials into the material receiving trough 12 for scraping and centralized collection.

[0038] like Figure 8-9As shown, the collecting device 2 includes a first pushing module 21, a blocking module 22, a second pushing module 23, a scraping module 24 and a poke component 25. The first pushing module 21 is located in the receiving port 13 and moves forward and backward. The first pushing module 21 is used to push the material onto the second pushing module 23. The blocking module 22 moves left and right on the first pushing module 21. The collecting device 2 is provided with a collecting port 201. The second pushing module 23 moves left and right on the collecting port 201. The scraping module 24 is located left and right on the second pushing module 23. Move to allow the material to be sent to the collection port 201. The poking component 25 is located at the upper position of the collection port 201 and moves up and down toward the collection port 201. When the material is scraped to the first pushing module 21 by the scraper 33, the first pushing module 21 is pushed to the front position of the blocking module 22. The blocking module 22 moves to the right, and the first pushing module 21 returns to its position backward. The material is blocked by the blocking module 22 and retained on the second pushing module 23. The material is pushed into the collection port 201 through the scraping module 24. When sticking occurs, the poking component 25 presses the material out of the collection port 201.

[0039] like Figure 2-3 As shown, a feeding mechanism 6 is provided on the step 11, and a feeding trough 61 corresponding to the hopper frame 4 is provided on the feeding mechanism 6. The feeding troughs 61 are arranged around the axis position of the feeding mechanism 6, and a feeding variable pitch screw 62 is provided in the feeding trough 61. A plurality of first motors 63 are provided in the feeding mechanism 6, and the first motor 63 drives the feeding variable pitch screw 62 to rotate. A conical cover 64 is provided between the feeding troughs 61 and the feeding troughs 61. An upper cover 7 is provided on the feeding mechanism 6, and a swinging Rod 71, a second motor 73 is provided in the upper cover 7, the second motor is connected to the swing rod 71 and drives the swing rod 71 to rotate, and an outer frame 72 is provided on the periphery of the upper cover 7. When items are placed on the upper cover 7, the swing rod 71 can evenly distribute the materials, and the outer frame 72 can prevent the materials from overflowing. The materials are evenly distributed into the feeding trough 61 and are transported to the storage hopper 51 through the rotation of the feeding variable pitch screw 62. The conical cover 64 can allow the materials to fall into the feeding troughs 61 on both sides. This structure can reduce the difficulty of distribution when distributing materials.

[0040] In the prior art, sticky materials are easily adhered to the inner wall surface, conveyor belt and other positions of the packaging equipment, affecting the packaging. Therefore, a scraper-type combination scale is provided. The weighing hopper mechanism 5 puts the sticky materials into the receiving trough 12. The receiving trough 12 is provided with two, and the receiving port 13 is located at the diagonal position of the step 11. The scraper 33 on the receiving rotating device 3 scrapes from the first receiving port 13 along the receiving trough 12 to the second receiving port 13 for collection through the collecting device 2. The material continues to fall, and the scraper 33 scrapes from the second receiving port 13 to the first receiving port 13 for collection through the diagonal collecting device 2. In this way, sticky materials will not stick to the inner wall surface, conveyor belt and other positions of the packaging equipment, thereby improving the collection efficiency.

[0041] The pneumatic rod 321 pushes the rack 322 forward, and the gears 323 on both sides rotate relative to each other to make the rotating arm 31 rotate from the back to the front, and the scraper 33 scrapes along the inside of the receiving chute 12.

[0042] The above embodiments are preferred implementations of the present invention, but the implementations of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A scraper-type combination weigher, comprising a machine base (1), a step (11) being provided in the middle of the machine base (1), a material receiving trough (12) being provided around the edge of the step (11), a material receiving port (13) being provided on the material receiving trough (12), and a material collecting device (2) being provided on the material receiving port (13), wherein: A material collecting rotating device (3) is provided on the step (11), and the material collecting rotating device (3) comprises a rotating support arm (31), a driving mechanism (32) and a scraper (33), wherein the scraper (33) is provided at one end of the rotating support arm (31), and the driving mechanism (32) is installed at the other end of the rotating support arm (31), and the scraper (33) is placed in the material collecting trough (12). The driving mechanism (32) allows the rotating support arm (31) to rotate, so that the scraper (33) scrapes back and forth in the material collecting trough (12), and the scraper (33) scrapes to the material collecting port (13) and is collected by the collecting device (2); The material collecting device (2) comprises a first pushing module (21), a blocking module (22), a second pushing module (23), a scraping module (24) and a material poking component (25); the first pushing module (21) is located in the material receiving port (13) and moves forward and backward; the first pushing module (21) is used to push the material onto the second pushing module (23); the blocking module (22) moves left and right on the first pushing module (21); a material collecting port (201) is provided on the material collecting device (2); the second pushing module (23) moves left and right on the material collecting port (201); the scraping module (24) is located on the second pushing module (23) and moves left and right to send the material into the material collecting port (201); the material poking component (25) is located at the upper position of the material collecting port (201) and moves up and down toward the material collecting port (201).

2. The scraper-type combination weigher according to claim 1, characterized in that: The material receiving troughs (12) are provided with two and are in the shape of a semicircular structure. The two material receiving troughs (12) are mirror-imaged and located on the edge of the step (11). The material receiving port (13) is located at a diagonal position of the step (11).

3. The scraper-type combination weigher according to claim 1, characterized in that: The rotating support arm (31) comprises a front arm (311) and a rear arm (312); a slider (313) is fixedly provided on the front arm (311); a through hole is provided on the slider (313); and the rear arm (312) is inserted into the through hole to be movable and retractable.

4. The scraper-type combination weigher according to claim 3, characterized in that: The driving mechanism (32) includes a pneumatic rod (321), a rack (322) and a gear (323); the gear (323) is mounted on the rotating arm (31); the teeth on the rack (322) are located on both sides and mesh with the gears (323) on both sides; the pneumatic rod (321) is mounted on one side of the rack (322) and pushes or contracts the rack (322) to move forward or backward.

5. The scraper-type combination weigher according to claim 4, characterized in that: Buffering portions (34) are provided at both ends of the rack (322).

6. The scraper-type combination weigher according to claim 1, characterized in that: Guide wheels (331) are provided on both sides of the scraper (33).

7. The scraper-type combination weigher according to claim 1, characterized in that: A hopper frame (4) is provided on the upper portion of the material receiving trough (12), and a plurality of weighing hopper mechanisms (5) are provided on the periphery of the hopper frame (4). The weighing hopper mechanisms (5) include an upper storage hopper (51) for storing materials and a tilting hopper scale (52) for weighing.

8. The scraper-type combination weigher according to claim 7, characterized in that: A feeding mechanism (6) is provided on the step (11), and a feeding trough (61) corresponding to the hopper frame (4) is provided on the feeding mechanism (6), and the feeding trough (61) is arranged around the axis position of the feeding mechanism (6), and a feeding variable pitch screw (62) is provided in the feeding trough (61), and a plurality of first motors are provided in the feeding mechanism (6), and the first motors drive the feeding variable pitch screw (62) to rotate, and a conical cover (64) is provided between the feeding trough (61).

9. The scraper-type combination weigher according to claim 8, characterized in that: An upper cover (7) is provided on the feeding mechanism (6), a swing rod (71) is provided at the top of the upper cover (7), a second motor (73) is provided inside the upper cover (7), the second motor (73) is connected to the swing rod (71) and drives the swing rod (71) to rotate, and an outer frame (72) is provided on the periphery of the upper cover (7).

Images