Food vacuum packaging machine

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a food vacuum packaging machine which comprises a feeding mechanism, a weighing and distributing mechanism, a bagging mechanism and a vacuum sealing mechanism which are sequentially arranged from front to back, and a guide hopper is arranged between the output end of the feeding mechanism and the input end of the weighing and distributing mechanism. The outer side end of the guide hopper is connected with a support rod through a plurality of extension rods; the extension rod is arranged on the supporting rod in a sleeving mode, a sliding block is arranged at the connecting position of the supporting rod and the extension rod, the outer side end of the sliding block is in threaded connection with a knob bolt, the inner side end of the knob bolt extends into the inner hole and is in pivot joint with a pressing block, and the transverse inner side end of the pressing block is an arc-shaped concave face matched with the outline of the outer side wall of the supporting rod. After the knob bolt is screwed relative to the sliding block, the inner side end of the knob bolt can drive the pressing block to abut against the outer side wall of the side pressing supporting rod, and a locking limiting structure is formed. The guide hopper mounting structure is favorable for solving the problem that some existing guide hopper mounting structures are easy to incline and deviate due to looseness of joints, so that the blanking stability is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a food vacuum packaging machine. Background Art

[0002] As the pace of life gradually accelerates, frozen food is becoming more and more popular as a fast food product, and the requirements for production efficiency and product quality of frozen food have been greatly improved. Traditional food packaging mainly relies on manual operation, which has low production efficiency and cannot guarantee the hygiene of the operation. In recent years, some manufacturers have developed corresponding food packaging equipment to replace traditional manual operation. At present, such automated packaging equipment as the food packaging machine disclosed in patent CN217673560U comprises a main frame, a station turntable device is arranged on one side of the top of the main frame, and a bag supply device, a bag suction and opening device, a bag holding device, a material discharge device and a shaping device are arranged around the station turntable device respectively; a multi-station sealing device is arranged on the other side of the top of the main frame; a dividing device frame is arranged on one side of the top of the main frame, a weighing dividing device is arranged on the dividing device frame, and a hollow part is arranged on the top of the dividing device frame, so that the dividing discharge port of the weighing dividing device passes through and is aligned with the barrel of the discharge device; a feeding frame is arranged on one side of the dividing device frame, and a feeding device is installed on the feeding frame to provide materials for the weighing dividing device.

[0003] Among them, after the feeding device lifts and transports the frozen food (such as frozen pills and other products), it falls into the weighing and dividing device with the help of a guide hopper. The current guide hopper is erected and fixed with several support rods, and the guide hopper is radially tightened and fixed on the support rods with knob bolts. This method is to facilitate the flexible adjustment of the installation height of the guide hopper. However, the periodic dropping action will cause intermittent impact at the junction of the inner end of the knob bolt and the support rod, which is prone to loosening after working for a long time, causing the guide hopper to deviate, thereby affecting the stability of material discharge. Utility Model Content

[0004] The utility model provides a food vacuum packaging machine, which is conducive to solving the problem that some current guide hopper installation structures are prone to loose connections, resulting in tilting and deviation that affects material discharge stability.

[0005] The utility model is achieved in this way:

[0006] A food vacuum packaging machine comprises a feeding mechanism, a weighing and distributing mechanism, a bagging mechanism and a vacuum sealing mechanism which are arranged in sequence in front and behind. The feeding mechanism is a lifting feeding structure, and its output end is located directly above the input end of the weighing and distributing mechanism. A material guide hopper is provided between the output end and the input end of the weighing and distributing mechanism. The material guide hopper is a cone hopper structure which is wide at the top and narrow at the bottom. The outer end of the material guide hopper is connected to a support rod through a plurality of extension rods, and the bottom of the support rod is connected to a frame.

[0007] The extension rod is sleeved on the support rod, and a slider is provided at the connection between the support rod and the extension rod. The center position of the slider is provided with an inner hole of a longitudinal through hole structure, and the slider is sleeved on the support rod through the inner hole. The top end surface of the slider is used to abut against the bottom of the extension rod. The outer end of the slider is threadedly connected with a knob bolt, and the inner end of the knob bolt extends into the inner hole and is pivotally connected with a pressure block. The transverse inner end of the pressure block is an arc-shaped concave surface that adapts to the contour of the outer wall of the support rod. After the knob bolt is tightened relative to the slider, its inner end can drive the pressure block to abut against the outer wall of the side pressure support rod to form a locking and limiting structure.

[0008] On the basis of the above technical solution, the cross-sectional profile of the inner hole is a strip hole structure, and the outer end of the strip hole structure in the long side direction is provided with a threaded through hole, and the threaded through hole is used to install the knob bolt.

[0009] Based on the above technical solution, the lateral inner end of the inner hole is an arc-shaped concave surface adapted to the outer wall profile of the support rod, and an opening and closing clamping gap is formed between the lateral inner end surface of the inner hole and the lateral inner end surface of the pressure block.

[0010] Based on the above technical solution, a "T"-shaped slot is provided at the lateral outer end of the pressure block, the opening of the slot is horizontally aligned with the threaded through hole, the inner end of the knob bolt is pivotally connected to the slot, and the knob bolt can perform axial rotation relative to the pressure block.

[0011] Based on the above technical solution, the two ends of the arc concave surface on the inner side of the pressure block have claws, and a flexible block is provided between the claws on both sides. The flexible block can undergo elastic deformation after being compressed to form a flexible buffer structure between the pressure block and the support rod.

[0012] On the basis of the above technical solution, the pressing block is provided with a laterally inwardly convex shaping flange on one side of the flexible block, and the shaping flange and the pressing block are an integrated rigid structure.

[0013] On the basis of the above technical solution, a plurality of the shaping flanges are symmetrically arranged on both sides of the transverse center line of the pressing block.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] The utility model provides a locking mechanism consisting of a slider, a knob bolt and a pressure block between the extension rod of the guide hopper and the support rod, and utilizes the arc concave surface of the inner end of the pressure block to increase the contact area with the support rod, so that the anti-slip effect after locking is better, and the probability of the connection structure loosening due to periodic impact generated during material discharge is reduced. In addition, the slider can be used to conveniently adjust the installation height in an unlocked state; the top of the slider abuts against the load-bearing extension rod, so that the two are in a non-rigid locking state, and the guide hopper has a certain degree of longitudinal freedom relative to the support rod, which is also conducive to offsetting the impact of weakening the material discharge impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of a food vacuum packaging machine in one embodiment;

[0018] Figure 2 for Figure 1 Partial schematic diagram of the installation structure of the middle guide hopper;

[0019] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0020] Figure 4 for Figure 3 Schematic diagram of the connection structure between the middle knob bolt and the support rod;

[0021] Figure 5 is a cross-sectional view of a pressing block in another embodiment;

[0022] Figure 6 FIG. 4 is a cross-sectional view of a pressing block in yet another embodiment.

[0023] Markings in the figure: 1. Feeding mechanism; 2. Weighing and dividing mechanism; 3. Bagging mechanism; 4. Vacuum sealing mechanism; 5. Guide hopper; 51. Extension rod; 6. Support rod; 7. Slider; 71. Inner hole; 72. Threaded through hole; 8. Knob bolt; 9. Press block; 91. Slot; 92. Claw; 93. Flexible block; 94. Shaping flange. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0025] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1: Combination Figure 1-4 This embodiment discloses a food vacuum packaging machine, including a feeding mechanism 1, a weighing and distributing mechanism 2, a bagging mechanism 3 and a vacuum sealing mechanism 4 which are arranged in sequence. It is a prior art, and its specific structure and working principle are not described here in detail. Please refer to the relevant contents in Chinese patents CN217673560U and CN214930922U.

[0029] The feeding mechanism 1 is a lifting feeding structure, and its output end is located directly above the input end of the weighing and distributing mechanism 2. In this embodiment, in order to make the material transfer between the feeding mechanism 1 and the weighing and distributing mechanism 2 more stable and reliable, a guide hopper 5 is provided between the output end of the feeding mechanism 1 and the input end of the weighing and distributing mechanism 2. The guide hopper 5 is a cone hopper structure that is wide at the top and narrow at the bottom. The outer end of the guide hopper 5 is connected to the support rod 6 through a number of extension rods 51, and the bottom of the support rod 6 is connected to the frame. When working, the material falls from the top into the upper opening of the guide hopper 5, slides down along the inner contour of the guide hopper 5, passes through the positioning limit of the lower opening, and falls into the weighing and distributing mechanism 2 located below.

[0030] Among them, combined Figure 3 As shown, the longitudinal section profile of the extension rod 51 is an “n”-shaped structure, and a longitudinal through hole is provided near the transverse outer end thereof, and the extension rod 51 is sleeved on the support rod 6 by utilizing the longitudinal through hole.

[0031] Furthermore, a slider 7 is provided at the connection between the support rod 6 and the extension rod 51. After the slider 7 is installed, it is located at the bottom of the extension rod 51. The lateral outer contour of the slider 7 and the lateral inner contour of the bottom of the extension rod 51 are set with a gap, and the two will not interfere with each other. The top end surface of the slider 7 is used to abut against the bottom of the extension rod 51 to form a unilateral constraint structure. During use, the guide hopper 5 can use the unilateral constraint structure to perform appropriate longitudinal jumps in the area above the slider 7, thereby offsetting the impact of the material discharge impact.

[0032] The slider 7 is provided with an inner hole 71 of a longitudinal through hole structure at the center thereof. Figure 4 The cross-sectional profile of the inner hole 71 is a strip hole structure, and a threaded through hole 72 is provided at the outer end in the long side direction of the strip hole structure. The threaded through hole 72 is threadedly connected with a knob bolt 8, that is, the outer end of the slider 7 is threadedly connected with the knob bolt 8, and the inner end of the knob bolt 8 extends into the inner hole 71 and is pivotally connected with a pressure block 9. The lateral inner end of the pressure block 9 is an arc-shaped concave surface that matches the outer wall profile of the support rod 6. The two ends of the arc concave surface on the lateral inner side of the pressure block 9 are provided with claws 92. The outer wall of the claw 92 is fitted with the inner wall of the strip hole, which can play a guiding and limiting role when the pressure block 9 slides inward and outward laterally, making its sliding more stable and smooth, and reducing the occurrence of jamming.

[0033] A “T”-shaped slot 91 is provided at the lateral outer end of the pressing block 9 , and the opening of the slot 91 is horizontally aligned with the threaded through hole 72 . The inner end of the knob bolt 8 is pivotally connected to the slot 91 , and the knob bolt 8 can perform axial rotation relative to the pressing block 9 .

[0034] When the knob bolt 8 is tightened relative to the slider 7, its inner end moves inward laterally, which can drive the pressure block 9 to abut against the outer wall of the side pressure support rod 6. The claws 92 on both sides clamp the outer wall of the support rod 6 on both sides to form a locking and limiting structure.

[0035] In addition, the lateral inner end of the inner hole 71 is an arc-shaped concave surface adapted to the outer wall profile of the support rod 6, and an opening and closing clamping gap is formed between the lateral inner end surface of the inner hole 71 and the lateral inner end surface of the pressure block 9. This method greatly increases the clamping area of ​​the slider 7 and the support rod 6 when they are locked, and compared with the contact area between the existing outer curved surface of the support rod 6 and the inner flat end surface of the knob bolt 8, it can greatly improve the connection stability and reliability between the two. Therefore, it is ensured that the slider 7 can maintain a firm connection with the support rod 6 after installation, so that the guide hopper 5 can more stably withstand the impact of unloading above the slider 7, and use the guide hopper 5 itself to perform appropriate longitudinal jumps, so that the working stability of the guide hopper 5 can be greatly improved.

[0036] Example 2: Based on Example 1, Figure 5 As shown, in this embodiment, in order to further improve the connection stability between the slider 7 and the support rod 6, the two ends of the arc concave surface of the lateral inner side of the pressure block 9 are provided with claws 92, and a flexible block 93 is provided between the claws 92 on both sides. The flexible block 93 can be elastically deformed after being compressed to form a flexible buffer structure between the pressure block 9 and the support rod 6. The flexible block 93 in this embodiment is made of rubber material. The elastic deformation after being compressed can fill the gap between the pressure block 9 and the outer wall of the support rod 6, making it fit more closely, and can also greatly increase the sliding friction and improve the connection stability. Another function of the flexible block 93 is that when the pressure block 9 and the support rod 6 are subjected to a strong lateral pressure force, the lateral elastic gap between the pressure block 9 and the support rod 6 can be appropriately changed, which can weaken the lateral force when the buffer material hits the guide hopper 5, and avoid excessive lateral swing of the support rod 6, which is conducive to ensuring that the guide hopper 5 will not be greatly offset in the lateral position, making the material feeding guide more reliable.

[0037] Embodiment 3: Based on Embodiment 2, Figure 6As shown, in this embodiment, the pressing block 9 is provided with a laterally convex shaping flange 94 on one side of the flexible block 93, and the shaping flange 94 and the pressing block 9 are an integral rigid structure. Furthermore, in this embodiment, the two shaping flanges 94 are symmetrically arranged on both sides of the transverse center line of the pressing block 9, and the shaping flange 94 forms a vertical plate structure on the longitudinal plane, and its function is that when the flexible block 93 is subjected to transverse extrusion, the left and right side areas thereof will reduce the elastic deformation amplitude due to the existence of the shaping flange 94, so that after being compressed, the left and right sides will be more tightly compressed in the gap between the slider 7 and the support rod 6, thereby realizing the controllability of the lateral offset direction, avoiding the uncertain swing of the support rod 6 when receiving the lateral force, and helping the pressing block 9 and the slider 7 to always have a firm clamping effect in the same direction.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A food vacuum packaging machine, comprising a feeding mechanism (1), a weighing and distributing mechanism (2), a bagging mechanism (3) and a vacuum sealing mechanism (4) arranged in sequence, characterized in that: The feeding mechanism (1) is a lifting feeding structure, the output end of which is located directly above the input end of the weighing and distributing mechanism (2), and a guide hopper (5) is provided between the output end and the input end of the weighing and distributing mechanism (2), the guide hopper (5) being a cone hopper structure that is wide at the top and narrow at the bottom, the outer end of the guide hopper (5) being connected to a support rod (6) via a plurality of extension rods (51), and the bottom of the support rod (6) being connected to a frame; The extension rod (51) is sleeved on the support rod (6), and a slider (7) is provided at the connection between the support rod (6) and the extension rod (51). The center position of the slider (7) is provided with an inner hole (71) with a longitudinal through hole structure. The slider (7) is sleeved on the support rod (6) through the inner hole (71). The top end surface of the slider (7) is used to abut against the bottom of the extension rod (51). The outer end of the slider (7) is threadedly connected with a knob bolt (8). The inner end of the knob bolt (8) extends into the inner hole (71) and is pivotally connected with a pressure block (9). The lateral inner end of the pressure block (9) is an arc-shaped concave surface adapted to the outer wall contour of the support rod (6). After the knob bolt (8) is tightened relative to the slider (7), its inner end can drive the pressure block (9) to abut against the outer wall of the side pressure support rod (6) to form a locking and limiting structure.

2. A food vacuum packaging machine according to claim 1, characterized in that: The cross-sectional profile of the inner hole (71) is a strip-shaped hole structure, and a threaded through hole (72) is provided at the outer end in the long side direction of the strip-shaped hole structure, and the threaded through hole (72) is used to install the knob bolt (8).

3. A food vacuum packaging machine according to claim 2, characterized in that: The transverse inner end of the inner hole (71) is an arc-shaped concave surface adapted to the outer wall profile of the support rod (6), and an opening and closing clamping gap is formed between the transverse inner end surface of the inner hole (71) and the transverse inner end surface of the pressing block (9).

4. A food vacuum packaging machine according to claim 3, characterized in that: A "T"-shaped slot (91) is provided at the transverse outer end of the pressing block (9), the opening of the slot (91) is horizontally aligned with the threaded through hole (72), the inner end of the knob bolt (8) is pivotally connected to the slot (91), and the knob bolt (8) can perform axial rotation relative to the pressing block (9).

5. A food vacuum packaging machine according to claim 4, characterized in that: The two ends of the arc concave surface on the lateral inner side of the pressing block (9) are provided with claws (92), and a flexible block (93) is provided between the claws (92) on both sides. The flexible block (93) can undergo elastic deformation after being compressed, thereby forming a flexible buffer structure between the pressing block (9) and the support rod (6).

6. A food vacuum packaging machine according to claim 5, characterized in that: The pressing block (9) is provided with a laterally inwardly convex shaping flange (94) located on one side of the flexible block (93); the shaping flange (94) and the pressing block (9) are an integrated rigid structure.

7. A food vacuum packaging machine according to claim 6, characterized in that: The plurality of shaping flanges (94) are symmetrically arranged on both sides of the transverse center line of the pressing block (9).

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