A multi-stage forming device for konjak tofu blocks

CN224791672UActive Publication Date: 2026-09-25HUBEI YIZHI KONJAC BIOTECH
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Patent Information

Application Number
CN202522310887.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-09-25
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

[0004]针对现有技术中所存在的不足,本实用新型提供了一种魔芋豆腐块多级成型装置,其解决了刀具无法快速适应产品规格需求,切割后的成品边缘存在明显的毛刺与不规则裂纹,严重影响外观品质与细腻口感的问题

Benefits of technology

[0016]相比于现有技术,本实用新型具有如下有益效果:通过可独立滑动的纵切刀与固定横切刀构成可调节的分隔网格,使得装置能够快速适配出多种规格尺寸的魔芋豆腐块,极大提升与生产需求的匹配性并减少生产成本;通过在水浴熟化前利用该分隔网格将魔芋溶胶在液态下预先物理隔离,使得每个豆腐块在其独立的成型腔室中同步凝胶定型,从而从根源上消除了传统工艺因切割已熟化的软韧凝胶所造成的边缘挤压撕裂与塑性变形,显著提升产品的外观品质与口感。

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Abstract

The utility model provides a kind of konjak tofu block multistage forming device, it is related to konjak tofu forming device technical field, it includes gland and the injection mold box that can be combined with gland, cutting knife subassembly is provided in gland, cutting knife subassembly includes several side-by-side and can independently slide longitudinal cutter, and vertical to longitudinal cutter fixed horizontal cutter, longitudinal cutter is provided with positioning mechanism, longitudinal cutter and horizontal cutter bottom flush, jointly constitute adjustable separation grid, the side wall of longitudinal cutter and horizontal cutter is mutually matched with the inner side wall of injection mold box when gland is combined, to make longitudinal cutter, horizontal cutter and injection mold box form multiple mutually isolated forming chamber;It is adjusted separation grid by longitudinal cutter and horizontal cutter to constitute, so that device can quickly adjust separation grid size, greatly improve the matching with production demand;Konjak sol is pre-physically isolated by separation grid, so that tofu block is simultaneously shaped in independent chamber, significantly improve the appearance quality and taste of product.
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Description

Technical Field

[0001] This utility model relates to the technical field of konjac tofu forming device, and in particular to a multi-stage forming device for konjac tofu blocks. Background Technology

[0002] The formation of konjac tofu is essentially a gelation reaction of konjac glucomannan under alkaline conditions. The traditional production method usually involves mixing konjac flour with water to form a slurry, which is then poured into a mold and heated to fully cook and solidify, forming a large gel. After cooling, it is then divided into small pieces for individual sale.

[0003] Existing cutting methods typically rely on manual labor or individual cutting equipment, using multiple blades in a set to cut konjac blocks longitudinally and transversely. The fixed-spaced blade array cannot quickly adapt to product specification requirements. Each size of konjac block requires a separate blade or mold, and the replacement and adjustment significantly increase operational complexity and production costs, reducing production efficiency. Secondly, because konjac gel exhibits a unique texture that is both soft and tough after full cooking, it is difficult for it to undergo clean brittle fracture when cut. This results in the edges of the tofu blocks being squeezed and torn rather than cut smoothly, causing obvious burrs and irregular cracks on the edges of the finished product, which seriously affects the appearance quality and delicate taste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-stage forming device for konjac tofu blocks, which solves the problem that the cutting tools cannot quickly adapt to product specifications, resulting in obvious burrs and irregular cracks on the edges of the finished product after cutting, which seriously affects the appearance quality and delicate taste.

[0005] According to an embodiment of this utility model, a multi-stage molding device for konjac tofu blocks includes a pressure cap and an injection mold box that can be closed with the pressure cap. A cutting assembly is provided inside the pressure cap. The cutting assembly includes several parallel and independently sliding longitudinal cutting blades and a transverse cutting blade fixed perpendicular to the longitudinal cutting blades. A positioning mechanism is provided on the longitudinal cutting blades. The bottoms of the longitudinal cutting blades and the transverse cutting blades are flush and together form an adjustable dividing grid. When the pressure cap is closed, the side walls of the longitudinal cutting blades and the transverse cutting blades cooperate with the inner side wall of the injection mold box so that the longitudinal cutting blades, the transverse cutting blades and the injection mold box enclose multiple mutually isolated molding chambers.

[0006] The technical principle of this utility model is as follows: When in use, the prepared konjac sol is poured into the injection molding box. According to the size of the target tofu block, the spacing of each longitudinal cutting blade is pre-adjusted by sliding and fixed by the positioning mechanism. Then, the cap is closed with the injection molding box. At this time, the longitudinal cutting blade, the transverse cutting blade and the injection molding box together form multiple mutually isolated molding chambers. This closed mold is placed in a water bath for heating and maturation. The konjac sol completes gelation and shaping simultaneously in their respective independent sealed spaces, and finally, a regular-shaped konjac tofu block is obtained directly.

[0007] Furthermore, a slide rod is longitudinally rotatably arranged inside the pressure cap, and an installation block is fixedly arranged on the top of the longitudinal cutter. The installation block has a through hole that is slidably connected to the slide rod.

[0008] Furthermore, the positioning mechanism includes a tightening screw, which is threadedly connected to one side of the mounting block, and the tightening screw can be screwed in and abut against the slide bar.

[0009] Furthermore, the inner wall of the pressure cap is provided with a limiting ridge, and the side wall of the longitudinal cutter is provided with a limiting groove that matches the limiting ridge.

[0010] Furthermore, the two ends of the transverse cutter are fixedly connected to the middle of the inner wall of the pressure cap, and the bottom of the longitudinal cutter is provided with a clearance groove for the transverse cutter to be inserted.

[0011] Furthermore, the positioning mechanism includes a telescopic frame, which includes several fork-shaped bars hinged in the middle. The fork-shaped bars are hinged end to end to form several rhomboid parts. The central hinge point of the telescopic frame is rotatably connected to the top of a mounting block.

[0012] Furthermore, one end of the slide rod passes through the pressure cover and is fixedly connected to a knob. The slide rod is provided with an external thread, a mounting block engages with the external thread, and a mounting block is fixed to the inner wall of the pressure cover.

[0013] Furthermore, a limit block is provided at the outer hinge point of the telescopic frame, and a limit hole is provided through the limit block. The same limit rod is provided in all the limit holes on the same side.

[0014] Furthermore, it also includes a base, with the injection molding box fixedly mounted on the base, and a support plate surrounding the base, with the pressure cap slidingly mounted on the support plate.

[0015] Furthermore, a top plate is fixedly installed on the top of the support plate, and a cylinder is fixedly installed on the top plate, with the cylinder output end fixedly connected to the pressure cap.

[0016] Compared with existing technologies, this invention has the following advantages: The adjustable dividing grid, formed by the independently sliding longitudinal cutter and the fixed transverse cutter, allows the device to quickly adapt to various sizes of konjac tofu blocks, greatly improving its compatibility with production needs and reducing production costs. By using this dividing grid to physically isolate the konjac sol in a liquid state before water bath curing, each tofu block can be simultaneously gelled and shaped in its independent forming chamber, thus eliminating the edge extrusion tearing and plastic deformation caused by cutting the already cured soft and tough gel in traditional processes, significantly improving the product's appearance and taste. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the assembly structure of the injection molding box and the base according to an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the side cross-sectional structure of the pressure cap according to an embodiment of the present utility model.

[0020] Figure 4 This is a top sectional view of the pressure cap structure according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the cutter assembly according to another embodiment of the utility model.

[0022] In the above attached figures: 1. Pressure cap; 11. Slide rod; 111. Knob; 112. External thread; 113. Fixing sleeve; 12. Limiting ridge; 13. Mounting groove; 14. Slider; 15. Screw; 151. Tightening button; 2. Injection mold box; 3. Longitudinal cutter; 31. Mounting block; 311. Tightening screw; 32. Limiting groove; 33. Relief groove; 4. Cross cutter; 41. Mounting plate; 5. Telescopic frame; 51. Fork-shaped strip; 511. Middle hinge point; 512. Outer hinge point; 52. Limiting block; 521. Limiting hole; 53. Limiting rod; 6. Base; 61. Fixing seat; 62. Water bath; 7. Support plate; 71. Top plate; 72. Slide groove; 8. Cylinder. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figure 1-4As shown in the figure, this utility model embodiment proposes a multi-stage molding device for konjac tofu blocks, which includes a pressure cap 1 and a molding box 2 that can be closed with the pressure cap 1. The molding box 2 is preferably a food-grade rigid material with good thermal conductivity. An adjustable cutting blade assembly is provided inside the pressure cap 1, specifically including several parallel and independently sliding longitudinal cutting blades 3, and transverse cutting blades 4 fixed perpendicular to the longitudinal cutting blades 3. A positioning mechanism is provided on the longitudinal cutting blades 3, which can adjust and fix the position of the longitudinal cutting blades 3. The bottom edges of the longitudinal cutting blades 3 and the transverse cutting blades 4 are flush, forming an adjustable dividing grid. When the pressure cap 1 is closed, the side walls of the longitudinal cutting blades 3 and the transverse cutting blades 4 cooperate with the inner side wall of the molding box 2, so that the longitudinal cutting blades 3, the transverse cutting blades 4 and the molding box 2 enclose multiple mutually isolated molding chambers. The konjac slurry will be directly gelled and shaped into regular tofu blocks in these chambers.

[0025] In this exemplary embodiment, the size of the molding chamber is determined by the molding requirements of konjac tofu blocks, and is comprehensively controlled by adjusting the spacing of the longitudinal cutters 3, the layout of the transverse cutters 4, and the overall size of the injection mold box 2. During implementation, this can be flexibly set according to production needs and is not limited here. In other embodiments, to further improve molding quality, food-grade silicone, rubber, or TPE flexible pads can be applied to the surfaces of the longitudinal cutters 3 and transverse cutters 4 and the inner wall of the injection mold box 2. This allows the longitudinal cutters 3 and transverse cutters 4 to effectively fill the assembly gaps through the elastic deformation of the pads when pressed against the inner wall of the injection mold box 2, thereby forming a reliable seal at the intersections, ensuring that the slurry does not cross-contaminate and that the edges of the tofu blocks are smooth and regular. Simultaneously, the flexible pads can reduce the adhesion of the tofu blocks to the mold, reducing the difficulty of demolding. It should be noted that... While the addition of a molding chamber increases molding quality, it also increases the contact area with the konjac tofu blocks, inevitably leading to increased demolding difficulty. To address this issue, the following synergistic measures can be adopted: spraying food-grade release agent or directly applying a food-grade non-stick coating, such as a polytetrafluoroethylene coating or a ceramic non-stick coating, onto the surfaces of the longitudinal cutter 3, transverse cutter 4, and the inner wall of the injection mold box 2 that contact the konjac blocks to reduce surface adhesion; or setting the longitudinal cutter 3 and transverse cutter 4 as a wedge-shaped structure with a thicker upper part and a thinner lower part to form the side walls of the molding chamber that are smaller at the top and larger at the bottom; or integrating a liftable ejector plate or ejector rod mechanism into the pressure cap 1, which, during demolding, uses a uniform downward pushing force to smoothly remove the entire row of tofu blocks from the cavity, thereby achieving efficient and non-destructive mechanized demolding. The above methods can be flexibly selected according to the actual production situation.

[0026] In use, the prepared konjac sol is first poured into the molding box 2. The spacing of the longitudinal cutting blades 3 is pre-adjusted according to the size of the target tofu block and fixed by a positioning mechanism. Then, the pressure cap 1 is closed to the molding box 2. At this point, the longitudinal cutting blades 3, the transverse cutting blades 4, and the molding box 2 together form multiple isolated molding chambers. This closed mold is placed in a water bath for heating and maturation. The konjac sol simultaneously gels and solidifies within its independent sealed space, ultimately yielding a well-shaped konjac tofu block. This invention... The independently sliding longitudinal cutter 3 and the fixed transverse cutter 4 form an adjustable dividing grid, which enables the device to quickly adapt to various sizes of konjac tofu blocks, greatly improving the compatibility with production needs and reducing production costs. By using this dividing grid to physically isolate the konjac sol in a liquid state before water bath curing, each tofu block can be gelled and shaped synchronously in its independent forming chamber, thereby eliminating the edge extrusion tearing and plastic deformation caused by cutting the already cured soft and tough gel in traditional processes, significantly improving the appearance quality and taste of the product.

[0027] like Figure 3-4 As shown, in another embodiment, a slide rod 11 is longitudinally rotatably arranged inside the pressure cap 1, and a mounting block 31 is fixedly arranged on the top of each longitudinal cutter 3. The mounting block 31 has a through hole that is slidably connected to the slide rod 11, so that all longitudinal cutters 3 can be independently translated along the axial direction of the slide rod 11 to quickly adjust the spacing. In this embodiment, the positioning mechanism further includes a tightening screw 311, which is threadedly connected to a threaded hole on the top of the mounting block 31. The threaded hole is connected to the through hole, and the threaded screw can be screwed into the threaded hole and directly abut against the slide rod 11. The friction force generated by the threaded force can reliably lock the current position of the longitudinal cutter 3 on the slide rod 11, which is simple and convenient to operate.

[0028] like Figure 3-4 As shown, in this embodiment, the inner sidewall of the pressure cap 1 is symmetrically provided with two parallel limiting ridges 12, and each sidewall of the longitudinal cutter 3 is provided with a limiting groove 32 that precisely matches the limiting ridge 12. Based on the above configuration, when the longitudinal cutter 3 moves axially along the slide bar 11, the limiting ridge 12 can effectively constrain the lateral deflection and radial sway of the longitudinal cutter 3, providing reliable guidance and ensuring that the longitudinal cutter 3 remains balanced and stable during movement and fixation.

[0029] like Figure 3-4As shown, in another embodiment, the two ends of the transverse cutter 4 are fixedly connected to the middle of the inner wall of the pressure cover 1. Specifically, the two ends of the transverse cutter 4 are fixedly connected to the mounting plate 41. The inner wall of the pressure cover 1 is provided with a mounting groove 13 that can accommodate the mounting plate 41 to be embedded and fixed, ensuring that the transverse cutter 4 obtains stable lateral support. At the same time, each longitudinal cutter 3 has a relief groove 33 at its bottom that matches the thickness of the transverse cutter 4. The transverse cutter 4 can be accurately inserted into the corresponding relief groove 33. The relief groove 33 ensures that the longitudinal cutter 3 will not interfere with the transverse cutter 4 when sliding, realizing smooth avoidance and accurate positioning of the longitudinal cutter 3 and the transverse cutter 4 during the adjustment process.

[0030] like Figure 3-5 As shown, in another embodiment, the positioning mechanism includes a telescopic frame 5, which includes several fork-shaped bars 51 hinged in the middle. Multiple sets of fork-shaped bars 51 are hinged end to end to form several rhomboid parts. The central hinge point 511 of the telescopic frame 5 is rotatably connected to the top of a mounting block 31. Based on the above configuration, when the telescopic frame 5 is stretched or compressed longitudinally, all hinge points drive each mounting block 31 to move synchronously and equidistantly, thereby realizing the rapid and uniform adjustment of the spacing of all longitudinal cutting blades 3, avoiding the tedious operation of manual adjustment one by one, and significantly improving the efficiency and ease of operation.

[0031] like Figure 3-5 As shown, in this embodiment, one end of the slide rod 11 passes through the pressure cover 1 and is fixedly connected to a knob 111 on the outside. The slide rod 11 is provided with an external thread 112. A mounting block 31 engages with the external thread 112 and is fixed to the inner wall of the pressure cover 1. Preferably, the external thread 112 is provided at the end to the middle of one end of the slide rod 11. The through hole of the outer mounting block 31 closest to the external thread 112 is provided with an internal thread that engages with the external thread 112. The inner mounting block 31 furthest from the external thread 112 is fixed to the inner wall of the pressure cover 1 by a fixing sleeve 113. When the knob 111 is rotated to drive the slide rod 11, the mounting block 31 engaged with it will generate axial displacement along the thread. Then, through the linkage mechanism of the telescopic frame 5, all the rhomboid parts are driven to expand or retract synchronously, thereby realizing the equidistant translational adjustment of all longitudinal cutting blades 3. While ensuring positioning accuracy, the efficiency and convenience of equipment use are significantly improved.

[0032] like Figure 3-5As shown, in this embodiment, further, a limiting block 52 is rotatably provided on the outer hinge point 512 of the telescopic frame 5, and a limiting hole 521 is provided in each limiting block 52. The same limiting rod 53 is provided in all the limiting holes 521 on the same side. Based on the above configuration, the limiting rod 53 can effectively constrain the movement trajectory of the outer hinge point of the telescopic frame 5, ensuring that all rhomboid units maintain synchronous movement during the unfolding or retraction process, thereby maintaining the parallel relationship and equidistant movement between each longitudinal cutting blade 3, and significantly enhancing the overall rigidity and movement stability of the telescopic frame 5 during the adjustment process.

[0033] like Figure 1-4 As shown, in another embodiment, a base 6 is also included. The injection molding box 2 is fixedly mounted on the base 6. Several support plates 7 are arranged around the base 6. The cover 1 is slidably mounted on the support plates 7. Specifically, the support plates 7 have a longitudinal groove 72 that passes through the plate surface. The side wall of the cover 1 is correspondingly fixedly provided with a slider 14 that can be embedded in the groove 72, so that the cover 1 can be smoothly raised and lowered along the support plate 7 and accurately aligned with the injection molding box 2 to achieve fast and reliable closing positioning. Furthermore, in order to facilitate the fixing of the cover 1, the cover 1 is fixedly connected with a threaded rod 15 perpendicular to the side wall. The threaded rod 15 passes outward through the groove 72 on the support plate 7. The end of the threaded rod 15 is threadedly connected to a tightening button 151. By rotating the tightening button 151, its lower surface can be tightly pressed against the support plate 7, thereby locking the cover 1 firmly at the required height position through the friction generated.

[0034] like Figure 1-4 As shown, in another embodiment, a top plate 71 is fixedly installed on the top of the support plate 7, and a cylinder 8 is fixedly installed on the top plate 71. The output end of the cylinder 8 extends vertically downward and is fixedly connected to the center position of the top of the pressure cap 1. Based on the above configuration, the cylinder 8 provides a stable linear drive, which can ensure that the pressure cap 1 rises and falls smoothly along the guide of the support plate 7, and realizes precise automatic pressing and separation with the injection molding box 2. This not only significantly reduces the intensity of manual operation, but also ensures that the pressing force is uniform each time, thereby effectively improving the stability of molding quality and the level of automation of production. In some other embodiments, the cylinder 8 can also be replaced by a hydraulic cylinder, a linear motor or other drive mechanism with linear output function.

[0035] like Figure 1-4 As shown, in some other embodiments, a water bath 62 is provided on the base 6. The water bath 62 is connected to a hot water system. The four corners of the water bath 62 are provided with a fixing seat 61 with a groove on the inner side. The four corners of the bottom of the injection molding box 2 can correspond to the groove and be embedded, so as to achieve precise positioning of the injection molding box 2 in the pool. After the injection molding box 2 is placed in the pool, its bottom and four walls maintain a uniform gap with the bottom and walls of the pool, forming a surrounding water bath environment, ensuring that the konjac slurry can obtain a uniform and stable three-dimensional heating effect.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-stage molding device for konjac tofu blocks, comprising a pressure cap (1) and a molding box (2) capable of closing with the pressure cap (1), wherein a cutting assembly is provided inside the pressure cap (1), characterized in that: The cutting assembly includes several parallel and independently sliding longitudinal cutting blades (3) and a transverse cutting blade (4) fixed perpendicular to the longitudinal cutting blades (3). The longitudinal cutting blades (3) are provided with a positioning mechanism. The bottoms of the longitudinal cutting blades (3) and the transverse cutting blades (4) are flush and together form an adjustable dividing grid. When the cap (1) is closed, the side walls of the longitudinal cutting blades (3) and the transverse cutting blades (4) cooperate with the inner side wall of the injection mold box (2) so that the longitudinal cutting blades (3), the transverse cutting blades (4) and the injection mold box (2) enclose multiple mutually isolated molding cavities.

2. The multi-stage forming device for konjac tofu blocks as described in claim 1, characterized in that: The pressure cap (1) is longitudinally rotatably provided with a slide rod (11), and the top of the longitudinal cutter (3) is fixedly provided with a mounting block (31). The mounting block (31) has a through hole that is slidably connected to the slide rod (11).

3. The multi-stage forming device for konjac tofu blocks as described in claim 2, characterized in that: The positioning mechanism includes a tightening screw (311), which is threaded to one side of the mounting block (31), and the tightening screw (311) can be screwed in and pressed against the slide bar (11).

4. The multi-stage forming device for konjac tofu blocks as described in claim 2, characterized in that: The inner wall of the pressure cap (1) is provided with a limiting ridge (12), and the side wall of the longitudinal cutter (3) is provided with a limiting groove (32) that matches the limiting ridge (12).

5. A multi-stage forming device for konjac tofu blocks as described in any one of claims 1-4, characterized in that: The two ends of the transverse cutter (4) are fixedly connected to the middle of the inner wall of the pressure cap (1), and the bottom of the longitudinal cutter (3) is provided with a relief groove (33) for the transverse cutter (4) to be inserted.

6. The multi-stage forming device for konjac tofu blocks as described in claim 2, characterized in that: The positioning mechanism includes a telescopic frame (5), which includes several fork-shaped bars (51) hinged in the middle. The fork-shaped bars (51) are hinged end to end to form several rhomboid parts. The central hinge point (511) of the telescopic frame (5) is rotatably connected to the top of a mounting block (31).

7. The multi-stage forming device for konjac tofu blocks as described in claim 6, characterized in that: One end of the slide rod (11) passes through the pressure cover (1) and is fixedly connected to a knob (111). The slide rod (11) is provided with an external thread (112). A mounting block (31) engages with the external thread (112) and is fixed to the inner wall of the pressure cover (1).

8. The multi-stage forming device for konjac tofu blocks as described in claim 7, characterized in that: The outer hinge point (512) of the telescopic frame (5) is rotatably provided with a limit block (52), and a limit hole (521) is passed through the limit block (52). The same limit rod (53) is passed through all the limit holes (521) on the same side.

9. The multi-stage forming device for konjac tofu blocks as described in claim 1, characterized in that: It also includes a base (6), a molding box (2) fixedly mounted on the base (6), a support plate (7) surrounding the base (6), and a pressure cap (1) slidably mounted on the support plate (7).

10. The multi-stage forming device for konjac tofu blocks as described in claim 1, characterized in that: A top plate (71) is fixedly installed on the top of the support plate (7), and a cylinder (8) is fixedly installed on the top plate (71). The output end of the cylinder (8) is fixedly connected to the pressure cover (1).