Rice packaging mold locking mechanism

Abstract

A rice packaging mold locking mechanism is used for locking a mold of a rice packaging machine, the mold comprises a clamping plate, a leading-in section connected to the clamping plate and a matching section connected with the bottom of the leading-in section, and the rice packaging mold locking mechanism comprises an upper supporting frame and two clamping devices installed on the upper supporting frame. The clamping devices can clamp or loosen a mold, a supporting plate is arranged on the upper supporting frame, each clamping device comprises a driving air cylinder, a clamping plate connected with the driving air cylinder, a plurality of sets of return assemblies arranged below the clamping plate and abutting against the clamping plate and a plurality of fixing pieces, and the driving air cylinders are installed on the supporting plates through the fixing pieces. The driving air cylinder penetrates through the supporting plate and is connected with the clamping plate, and the driving air cylinder drives the return assembly to conduct state adjustment through the clamping plate, so that the clamping plate loosens the mold. The mold can be replaced, and the whole installation process is convenient, fast, good in flexibility and high in practicability.

Description

Technical Field

[0001] The utility model relates to rice packaging equipment, in particular to a rice packaging mold locking mechanism. Background Art

[0002] With the rapid development of modern machinery, machines have replaced manual labor in many fields. Rice packaging machine is one of them. Rice packaging machine packs rice according to set weight specifications (such as 5kg, 10kg, etc.), realizes production automation, reduces the labor intensity of workers and reduces production costs.

[0003] The unloading device of the rice packaging machine is usually provided with a mold. Before unloading, the packaging bag is placed on the mold, and then the mold with the packaging bag is transferred to the lower mold. The mold is embedded in the lower mold. After the rice packaging machine injects rice into the mold, the mold is pulled out to transfer the rice into the packaging bag. Through the cooperation of the mold and the lower mold, the packaging bag after filling with rice is arranged in a regular shape (such as square, round, etc.).

[0004] However, the mold of the existing rice packaging machine cannot be freely disassembled, so that the blanking device can only be used for one packaging specification. When it is necessary to change to another packaging specification (such as switching the 5KG packaging specification to the 10KG packaging specification), it is necessary to replace the packaging bag of a higher specification and replace the entire blanking device. The overall disassembly and assembly is troublesome and the flexibility is poor, which brings trouble to users. Utility Model Content

[0005] Based on this, it is necessary to provide a rice packaging mold locking mechanism to address the deficiencies in the prior art.

[0006] A rice packaging mold locking mechanism is used to lock the mold of a rice packaging machine. The mold includes a locking plate, an introduction section connected to the locking plate, and a matching section connected to the bottom of the introduction section. The rice packaging mold locking mechanism includes an upper support frame and two locking devices installed on the upper support frame. The locking devices can clamp or release the mold. The upper support frame is provided with a support plate. Each of the locking devices includes a driving cylinder, a clamping plate connected to the driving cylinder, a plurality of return assemblies provided below the clamping plate and abutting against the clamping plate, and a plurality of fixing parts. The driving cylinder is installed on the support plate through the fixing parts. The driving cylinder passes through the support plate and is connected to the clamping plate. The driving cylinder drives the return assembly through the clamping plate to adjust its state, so that the clamping plate releases the mold.

[0007] In one embodiment, the two locking devices are respectively installed on both sides of the support plate.

[0008] In one embodiment, a card slot is provided on the inner side of the upper end surface of the card plate. During installation, both sides of the support plate on the mold are respectively inserted into the card slots of the card plate on the two positioning devices.

[0009] In one embodiment, each group of the return assembly includes an upper limit block, a return spring, an adjustment shaft and a lower limit block. The lower limit block is installed at one end of the adjustment shaft, and the other end of the adjustment shaft passes through the return spring, the upper limit block and is installed on the support plate. Both ends of the return spring rest against the upper limit block and the lower limit block.

[0010] In one embodiment, the card plate is provided with a plurality of through holes, the upper limit block is provided with a limit plate and a positioning head connected to one end of the limit plate, the upper limit block corresponds one to one with the through holes, the positioning head of the upper limit block is inserted into the through holes, and the fixing part passes through the limit plate and is installed on the card plate.

[0011] In one embodiment, the upper limit block is also provided with an adjustment hole, which passes through the positioning head and the limit plate in the vertical direction. The adjustment shaft passes through the return spring, the adjustment hole and the through hole of the upper limit block and is installed on the support plate.

[0012] In one embodiment, the end of the limit plate away from the positioning head is arranged in a plane, and the limit plate of the upper limit block is in contact with the bottom of the clamping plate.

[0013] The beneficial effect of the rice packaging mold locking mechanism of the utility model is that, by providing two locking devices mounted on the upper support frame, the locking devices can clamp or release the mold. After releasing the mold, the mold can be removed from the locking devices to replace a mold of another size. The entire installation process is convenient, fast, flexible, and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the rice packaging mold locking mechanism of the utility model when the mold is fixed;

[0015] Figure 2 for Figure 1 Exploded view shown. DETAILED DESCRIPTION

[0016] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] 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, and do not indicate or imply 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 a limitation to the present invention.

[0018] 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 specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0019] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0020] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0022] See also Figure 1 and Figure 2 The present invention provides a locking mechanism for a rice packaging mold, which is used to lock the mold 100 of a rice packaging machine. The mold 100 can assist in shaping the packaging bag so that the outer shape of the packaging bag after being filled with rice and after being evacuated and sealed is basically consistent with the set outer shape. The mold 100 includes a positioning plate 101, an introduction section 102 connected to the positioning plate 101, and a matching section 103 connected to the bottom of the introduction section 102. The introduction section 102 and the matching section 103 are both hollow structures. The inner space of the introduction section 102 gradually shrinks from top to bottom. The matching section 103 is a square tubular structure. The packaging bag is sleeved on the matching section 103. Different specifications of packaging bags correspond to different models of molds 100. In addition, the positioning plates of different models of molds 100 have the same outer shape, while the matching sections 103 have different outer shapes.

[0023] The rice packaging mold locking mechanism includes an upper support frame 10 and two clamping devices 20 installed on the upper support frame 10. The clamping devices 20 can clamp or release the mold 100. After releasing the mold 100, the mold 100 can be removed from the clamping devices 20 to replace a mold 100 of another model.

[0024] The upper support frame 10 includes a support plate 12 and an outer surrounding plate 11 installed at the bottom of the support plate 12. A discharge port 121 is provided in the middle of the support plate 12. The two positioning devices 20 are respectively installed on both sides of the support plate 12.

[0025] Each of the positioning devices 20 includes a driving cylinder 22, a card plate 21 connected to the driving cylinder 22, several groups of return components 23 arranged under the card plate 21 and resting on the card plate 21, and several fixing parts (not shown in the figure). The driving cylinder 22 is installed on the support plate 12 through the fixing parts. The driving cylinder 22 passes through the support plate 12 and is connected to the card plate 21. The driving cylinder drives the return component 23 through the card plate 21 to adjust its state, so that the card plate 21 releases the mold 100.

[0026] Specifically, the card plate 21 is provided with a plurality of through-holes 211, and a card slot 212 is provided on the inner side of the upper end surface of the card plate 21. Each return assembly 23 includes an upper limit block 231, a return spring 232, an adjustment shaft 233, and a lower limit block 234. The upper limit block 231 is provided with a limit plate 235 and a positioning head 236 connected to one end of the limit plate 235. The end of the limit plate 235 away from the positioning head 236 is flat. In addition, the upper limit block 231 is also provided with an adjustment hole 237, which vertically penetrates the positioning head 236 and the limit plate 235.

[0027] During assembly, the upper limit block 231 corresponds to the through-hole 211 one by one, the positioning head 236 of the upper limit block 231 is inserted into the through-hole 211, the limit plate 235 of the upper limit block 231 is fitted with the bottom of the card plate 21, the fixing part passes through the limit plate 235 and is installed on the card plate 21, the lower limit block 234 is installed on one end of the adjusting shaft 233 by thread or other means, the other end of the adjusting shaft 233 passes through the return spring 232, the adjusting hole 237 of the upper limit block 231 and the through-hole 211 and is installed on the support plate 12, and the two ends of the return spring 232 are against the limit plate 235 of the upper limit block 231 and the lower limit block 234.

[0028] When the mold 100 needs to be replaced, the driving cylinder 22 is started, and the driving cylinder 22 drives the card plate 21 to press down. Since the adjustment shaft 233 is installed on the support plate 12, the lower limit block 234 is installed on the adjustment shaft 233 and limits the return spring 232. During the downward pressing process of the card plate 21, the return spring 232 is squeezed by the upper limit block 231, and the card plate 21 releases the mold 100, and the mold 100 is taken out in the horizontal direction, and then the new mold 100 is installed on the two card plates 21. During installation, the two sides of the support plate 12 on the mold 100 are respectively inserted into the card grooves 212 of the card plates 21 on the two positioning devices 20. After the driving cylinder 22 releases the card plate 21, the return spring 232 drives the card plate 21 to return, so that the support plate 12 on the mold 100 is clamped between the card plate 21 and the support plate 12.

[0029] The rice packaging mold locking mechanism of the present invention has the following advantages: by providing two locking devices 20 mounted on the upper support frame 10, the locking devices 20 can clamp or release the mold 100. After releasing the mold 100, the mold 100 can be removed from the locking devices 20 to replace a mold 100 of another size. The entire installation process is convenient, fast, flexible, and practical.

[0030] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A rice packaging mold locking mechanism for locking the mold of a rice packaging machine, wherein the mold comprises a locking plate, an introduction section connected to the locking plate, and a matching section connected to the bottom of the introduction section, characterized in that: The locking mechanism of the rice packaging mold includes an upper support frame and two clamping devices installed on the upper support frame. The clamping devices can clamp or release the mold. The upper support frame is provided with a support plate. Each of the clamping devices includes a driving cylinder, a clamping plate connected to the driving cylinder, several groups of return assemblies arranged under the clamping plate and abutting against the clamping plate, and several fixing parts. The driving cylinder is installed on the support plate through the fixing parts. The driving cylinder passes through the support plate and is connected to the clamping plate. The driving cylinder drives the return assembly through the clamping plate to adjust its state, so that the clamping plate releases the mold.

2. The rice packaging mold locking mechanism according to claim 1, characterized in that: The two positioning devices are respectively installed on both sides of the support plate.

3. The rice packaging mold locking mechanism according to claim 2, characterized in that: A card slot is provided on the inner side of the upper end surface of the card plate. When installing, both sides of the support plate on the mold are respectively inserted into the card slots of the card plate on the two card positioning devices.

4. The rice packaging mold locking mechanism according to claim 2, characterized in that: Each group of the return assembly includes an upper limit block, a return spring, an adjustment shaft and a lower limit block. The lower limit block is installed at one end of the adjustment shaft, and the other end of the adjustment shaft passes through the return spring, the upper limit block and is installed on the support plate. The two ends of the return spring rest against the upper limit block and the lower limit block.

5. The rice packaging mold locking mechanism according to claim 4, characterized in that: The card plate is provided with a plurality of through holes, the upper limit block is provided with a limit plate and a positioning head connected to one end of the limit plate, the upper limit block corresponds to the through holes one by one, the positioning head of the upper limit block is inserted into the through holes, and the fixing part passes through the limit plate and is installed on the card plate.

6. The rice packaging mold locking mechanism according to claim 5, characterized in that: The upper limit block is also provided with an adjustment hole, which passes through the positioning head and the limit plate in the vertical direction. The adjustment shaft passes through the return spring, the adjustment hole and the through hole of the upper limit block and is installed on the support plate.

7. The rice packaging mold locking mechanism according to claim 5, characterized in that: The end of the limit plate away from the positioning head is arranged in a plane, and the limit plate of the upper limit block is fitted with the bottom of the clamping plate.

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