Oil block forming and demolding method

Abstract

The invention discloses an oil block forming and demolding method. The method is characterized by comprising the following steps: 1, demolding; a bottom material, an oil material and a dry material are sequentially loaded into a mold cavity of the air pressure type oil material demolding mold; feeding the air pressure type oil demolding mold into a cooling chamber; after the oil is condensed into a block, taking out the air pressure type oil demolding mold, and turning over the air pressure type oil demolding mold to enable a mold cavity opening to face downwards; filling high-pressure gas into the bottom of the mold cavity, and blowing off the oil block by the high-pressure gas to demold; and carrying out vacuum compression, air exhaust and packaging on the oil block by using a plastic packaging machine. The mold has the advantages that large-scale automatic demolding can be achieved, oil blocks are pushed completely through air pressure, uniform stress of all demolding stress faces is achieved, the integrity and smoothness of the oil blocks are guaranteed during demolding, meanwhile, the stainless steel body structure is adopted, the mold is easy to clean, the demolding effect and the food safety of the oil blocks are guaranteed, and the mold is suitable for large-scale production. And the manufacturing cost of the oil block is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of demoulding processing, and in particular relates to an oil block molding demoulding method. Background Art

[0002] In the prior art, the molding and demolding methods of oil blocks all use plastic molds. First, the base material, oil, and dry material are loaded into the mold cavity in sequence; secondly, the mold is sent to a cooling chamber; after that, the mold is taken out after condensing into a block; then, the oil block is demolded by the traditional process of manual extrusion; finally, the oil block is vacuum compressed and encapsulated by a plastic sealing machine. However, the traditional process of manual extrusion cannot be scaled up and automated for demolding. Moreover, during manual extrusion, the plastic mold is too thick and too hard to be demolded; the plastic mold is too thin and easy to age, and the number of uses is limited. The oil made by the plastic mold is easy to stick to the mold, which is not easy to clean. The appearance of the molded oil block is uneven and unsightly. At the same time, the plastic mold is prone to produce harmful substances at high temperatures, affecting food safety.

[0003] The disadvantages of the existing technology are: it is impossible to achieve large-scale and automated demoulding processing, the plastic mold is too thick and hard, and it is not easy to demould; the plastic mold is too thin and easy to age, and the number of uses is limited; the oil made by the plastic mold is easy to stick to the mold and is not easy to clean; the appearance of the molded oil block is uneven and unsightly; at the same time, the plastic mold is easy to produce harmful substances at high temperatures, affecting food safety. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides an oil block molding and demolding method, which can realize large-scale automatic demolding, completely adopts air pressure to push the oil block, realizes uniform force on all demolding force surfaces, and ensures the integrity and flatness of the oil block during demolding. At the same time, the stainless steel body structure is adopted to improve the cleanability of the mold, ensure the demolding effect and edible safety of the oil block, and reduce the production cost of the oil block.

[0005] To achieve the above object, the technical solution of the present invention is as follows: a method for molding and demoulding an oil block, the key of which is: comprising the following steps;

[0006] Step 1: sequentially loading base material, oil material and dry material into the mold cavity of the pneumatic oil demoulding mold;

[0007] Step 2: Send the air pressure oil demoulding mold into the cooling chamber;

[0008] Step 3: After the condensation is formed into a block, take out the air pressure oil demoulding mold, and turn over the air pressure oil demoulding mold so that the mold cavity opening faces downward;

[0009] Step 4: Fill the bottom of the mold cavity with high-pressure gas, and blow the oil block out of the mold with the high-pressure gas;

[0010] Step 5: Put the oil blocks into bags and use a plastic sealing machine to vacuum compress, evacuate and package the oil blocks.

[0011] The oil blocks are blown off with high pressure by using a pneumatic oil demoulding die, replacing the traditional manual extrusion process, realizing large-scale, automated demoulding processing, and ensuring the integrity and flatness of the oil blocks during demoulding. At the same time, the use of a stainless steel body structure improves the ease of cleaning of the mold, ensures the demoulding effect and edible safety of the oil blocks, and reduces the production cost of the oil blocks.

[0012] In step one, 250 g of base material, 250 g of oil and some dry materials are sequentially loaded into the oil mold cavity of the pneumatic oil demolding mold. During the process, the base material temperature is 90-100°C, the oil temperature is 95-100°C, the dry material is at room temperature, and the base material and oil have the same quality.

[0013] Such a discharge sequence and temperature ensure the stability of billet forming. The same quality of base material and oil also plays a beneficial role in ensuring the stability of billet forming.

[0014] In step 2, the air pressure oil demoulding mold is cooled as a whole, the cooling temperature is 5-10° C., and the cooling time is 10 minutes.

[0015] The complete forming of the oil block is guaranteed.

[0016] In step three, the pneumatic oil demoulding mold is turned over so that the mold cavity opening faces downward.

[0017] The demoulding effect of the oil block is improved, and the oil block is more convenient to put into the bag.

[0018] In step 4, high-pressure gas is filled into the bottom of the mold cavity, and the high-pressure gas blows off the oil block to demould.

[0019] The bottom of the cavity is filled with high-pressure gas, and the oil is demoulded completely by air pressure, so that all demoulding force-bearing surfaces are evenly stressed, and the damage of the oil block caused by mechanical thrust is completely avoided.

[0020] Furthermore, the pneumatic oil demoulding mold comprises a mold cavity, a truncated cone-shaped air inlet with a larger upper part and a smaller lower part is opened in the middle of the cavity bottom of the mold cavity, the air inlet is closed by the closed air valve, the truncated cone-shaped closed air valve is matched with the shape of the air inlet, a lower pull rod is fixed to the lower end surface of the closed air valve, and the lower pull rod passes through the lower bottom of the high-pressure air chamber;

[0021] The lower part of the pull-down rod extending out of the high-pressure air chamber is a threaded rod, on which a pull-down spring and a nut are sleeved, and the pull-down spring abuts between the high-pressure air chamber and the nut.

[0022] The truncated cone-shaped air inlet ensures smooth flow of the air inlet. At the same time, the large-at-top-small-at-bottom fitting structure can improve the sealing effect of the air inlet and prevent liquid oil from seeping into the high-pressure air chamber. The pull-down spring further improves the sealing effect of the air inlet through the pull-down rod and nut.

[0023] Furthermore, in step 1, after closing the sealing valve, the base material, oil material and dry material are loaded into the mold cavity;

[0024] In step 4, high-pressure gas is filled in, the high-pressure gas opens the closed valve through the high-pressure gas chamber, the high-pressure gas is filled into the bottom of the mold cavity, and the high-pressure gas blows off the oil block to demold it.

[0025] Ensuring that the air inlet and the high-pressure air chamber remain sealed before filling with high-pressure gas also has the beneficial effect of preventing liquid oil from seeping into the high-pressure air chamber.

[0026] Furthermore, the lower bottom of the mold cavity is connected to a high-pressure air chamber via an air inlet, the air inlet is closed by a closed valve, and the high-pressure air chamber is provided with a one-way air inlet joint connected to a high-pressure air source.

[0027] Air pressure is used completely to push the oil out of the mold, so that all demoulding force-bearing surfaces are evenly stressed, completely avoiding the damage of the oil caused by mechanical thrust. At the same time, the design of the air inlet closed structure protects the air inlet from being completely unobstructed and blocked.

[0028] Furthermore, the mold cavity is a stainless steel cavity, and the high-pressure air chamber is welded to the bottom of the mold cavity;

[0029] The side wall of the mold cavity is evenly distributed with air release notches in the middle;

[0030] The included angle between the side wall of the mold cavity and the cavity bottom is 91-95°.

[0031] Stainless steel cavity demoulding, first, eliminates the high temperature contact between oil and plastic, second, eliminates the demoulding agent, ensuring food safety. The mold cavity and the high-pressure air chamber are closely combined, making the entire mold compact, simple to combine, easy to maintain, and long service life;

[0032] During demoulding, the deflation effect of the deflation notch can avoid the formation of reverse air pressure inside the mold cavity and ensure the stability of demoulding;

[0033] A vertical demoulding effect of nearly 90 degrees is achieved, ensuring that the contour line of the bottom of the oil block is beautiful and the entire oil block is free of any damage.

[0034] Furthermore, the closed valve and the lower tie rod are integrally formed;

[0035] A sealing ring is installed between the high-pressure air chamber and the lower pull rod.

[0036] One-piece molding ensures long-term stable opening and closing effect of the closed valve;

[0037] Maintaining high pressure in the high-pressure gas chamber for a long time also has the beneficial effect of preventing liquid oil from penetrating into the high-pressure gas chamber.

[0038] Furthermore, another structure of the pneumatic oil demolding mold is: it includes a mold cavity, a truncated cone-shaped air inlet with a small upper part and a large lower part is opened in the middle of the lower bottom of the mold cavity, and the air inlet is closed by a closed valve. The truncated cone-shaped closed valve matches the shape of the air inlet, and a circle of arc-shaped groove is opened in the middle of the truncated cone slope of the air inlet, and the arc-shaped groove is connected to the high-pressure air source. An upper push rod is fixed to the lower end face of the closed valve, and the upper push rod sleeve is provided with an upper push spring, the upper end of the upper push spring abuts against the closed valve, and the lower end of the upper push spring abuts against a spring baffle, and the spring baffle is fixedly connected to the outer wall of the high-pressure air chamber.

[0039] The truncated cone-shaped air inlet ensures smooth flow of the air inlet. The small-at-top-large-at-bottom fitting structure avoids the indentation caused by the closed valve pushing out of the air inlet. A circle of arc-shaped grooves ensures that the air pressure evenly presses down on the closed valve. At the same time, the push-up spring improves the sealing effect of the air inlet through the push-up rod to prevent liquid oil from seeping into the high-pressure air chamber.

[0040] Furthermore, a cylindrical through hole is opened at the lower part of the air inlet, and the lower part of the closed valve is a cylinder, and the cylinder fits with the cylindrical through hole, and a sealing ring is arranged between the two.

[0041] The sealing ring improves the sealing effect inside the high-pressure air chamber, prevents liquid oil from penetrating into the high-pressure air chamber, and ensures the unidirectional flow of air pressure. The air pressure will not leak from the inner wall of the cylindrical through hole, thereby improving the use effect of the air pressure. The lower part of the closed valve is a cylinder, which fits the shape of the cylindrical through hole, further improving the sealing effect inside the high-pressure air chamber. The depth of the cylindrical through hole ensures that the cylindrical through hole has sufficient space to make way for the maintenance of high-pressure airflow.

[0042] Furthermore, the diameter of the cylindrical through hole is equal to the diameter of the large end of the air inlet.

[0043] The close fit ensures that the high pressure is maintained in the high-pressure gas chamber for a long time, and also has the beneficial effect of preventing liquid oil from penetrating into the high-pressure gas chamber.

[0044] The beneficial effects of the present invention are: providing an oil block molding and demolding method, which can realize large-scale automatic demolding, ensure the integrity and flatness of the oil block during demolding, and at the same time, adopt a stainless steel body structure to improve the easy cleaning of the mold, ensure the demolding effect and edible safety of the oil block, and reduce the production cost of the oil block. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a flowchart of the present invention;

[0046] Figure 2 It is a structural schematic diagram of Example 1;

[0047] Figure 3 It is a top view of the air pressure oil demoulding mold;

[0048] Figure 4 It is a three-dimensional image of the air pressure oil demoulding mold;

[0049] Figure 5 This is a schematic diagram of the structure of Example 2. DETAILED DESCRIPTION

[0050] The present invention is further described below in conjunction with embodiments and drawings.

[0051] Embodiment 1,

[0052] like Figure 1 As shown, a method for molding and demoulding an oil block comprises the following steps;

[0053] Step 1: 250 g of base material at 95° C., 250 g of oil at 98° C., dried chili peppers and Sichuan peppercorns at room temperature are sequentially loaded into the mold cavity 1 of the pneumatic oil demoulding mold;

[0054] Step 2: Send the air pressure oil demoulding mold into the cooling room, the cooling temperature of the cooling room is 8°C, and cool for 10 minutes;

[0055] Step 3: After the solidified blocks are formed, the pneumatic oil demoulding mold is taken out and the pneumatic oil demoulding mold is turned over so that the mold cavity 1 faces downward;

[0056] Step 4: Fill the bottom of the mold cavity 1 with high-pressure gas, and blow the oil block out of the mold with the high-pressure gas;

[0057] Step 5: Put the oil blocks into bags and use a plastic sealing machine to vacuum evacuate and seal the oil blocks.

[0058] like Figure 2 As shown, the pneumatic oil demoulding mold has a mold cavity 1 made of stainless steel, and a high-pressure air chamber 3 is welded at the bottom.

[0059] An air inlet is provided between the lower bottom of the mold cavity 1 and the high-pressure air chamber 3, and the air inlet is closed by a closed air valve 2. The high-pressure air chamber 3 is provided with a one-way air inlet joint 4 connected to a high-pressure air source.

[0060] The truncated cone-shaped air inlet is located in the middle of the lower bottom of the mold cavity 1. The air inlet is larger at the top and smaller at the bottom. The air inlet is closed by the closed valve 2. The truncated cone-shaped closed valve 2 matches the shape of the air inlet. A lower pull rod 5 is fixed to the lower end face of the closed valve 2. The lower pull rod 5 passes through the lower bottom of the high-pressure air chamber 3. The central axes of the closed valve 2, the air inlet and the lower pull rod 5 coincide.

[0061] The closed valve 2 and the lower tie rod 5 are integrally formed.

[0062] The lower part of the pull-down rod 5 extending out of the high-pressure gas chamber 3 is a threaded rod, on which a pull-down spring 6 and a nut 8 are sleeved, and the pull-down spring 6 abuts between the high-pressure gas chamber 3 and the nut 8 .

[0063] A sealing ring 7 is installed between the high-pressure air chamber 3 and the lower pull rod 5 .

[0064] like Figure 3 , 4 As shown, the mold cavity 1 is a square structure, and a venting notch 9 is opened in the middle of the upper edges of the four walls.

[0065] like Figure 2 As shown, the angle between the side wall and the lower bottom of the mold cavity 1 is 93°.

[0066] With the above structural design, the process of demoulding the oil block by blowing off the oil block with high pressure gas in step 4 is as follows: filling the high pressure gas, the high pressure gas overcomes the downward pulling force of the spring, pushes open the closed valve 2, the high pressure gas is filled into the bottom of the mold cavity 1, pushes the oil block to demould, stops filling the high pressure gas, the high pressure value can be adjusted as needed, and the spring 6 drives the closed valve 2 to reset. The high pressure is maintained in the high pressure gas chamber 3 to prevent the infiltration of liquid oil.

[0067] Embodiment 2,

[0068] The structure of the present embodiment 2 is consistent with that of the embodiment 1, and also includes the same boxed mold cavity 1, an air inlet is opened between the bottom of the mold cavity 1 and the high-pressure air chamber 3, and the air inlet is closed by a closed air valve 2. The high-pressure air chamber 3 is provided with a one-way air inlet interface 4 connected to a high-pressure air source.

[0069] The difference is Figure 5 As shown:

[0070] The truncated cone-shaped air inlet is located in the middle of the lower bottom of the mold cavity 1. The air inlet is small at the top and large at the bottom. The air inlet is closed by a closed valve 2. The truncated cone-shaped closed valve 2 matches the shape of the air inlet. A circle of arc-shaped groove 10 is opened in the middle of the truncated cone slope of the air inlet. The arc-shaped groove 10 is connected to the high-pressure air source. An upper push rod 11 is fixed to the lower end face of the closed valve 2. The upper push rod 11 is sleeved with an upper push spring 13. The upper end of the upper push spring 13 abuts against the closed valve 2, and the lower end of the upper push spring 13 abuts against a spring baffle 12. The spring baffle 12 is fixedly connected to the outer wall of the high-pressure air chamber 3, and the central axis of the closed valve 2, the air inlet and the upper push rod 12 coincides.

[0071] The lower bottom of the air inlet is provided with a cylindrical through hole, the lower part of the closed valve 2 is a cylinder, the cylinder fits with the cylindrical through hole, and a sealing ring 14 is arranged between the two.

[0072] Using the above-mentioned structural design, the process of demolding the oil block by blowing off the high-pressure gas in step four is as follows: fill in high-pressure gas, the high-pressure gas is filled into a circle of arc-shaped grooves 10 through the high-pressure gas chamber 3, the high-pressure gas overcomes the upward thrust of the spring, pulls open the closed valve 2, and the high-pressure gas is filled into the bottom of the mold cavity 1 to push the oil block to be demolded, and stop filling with high-pressure gas. The high-pressure value can be adjusted as needed, and the upward push spring 13 drives the closed valve 2 to reset, and the high pressure is maintained in the high-pressure gas chamber 3 to prevent liquid oil from seeping in.

[0073] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A method for demoulding an oil block, characterized in that: It consists of the following steps; Step 1: sequentially loading base material, oil material and dry material into the mold cavity of the pneumatic oil demoulding mold; Step 2: Send the air pressure oil demoulding mold into the cooling chamber; Step 3: After the condensation is formed into a block, take out the air pressure oil demoulding mold, and turn over the air pressure oil demoulding mold so that the mold cavity opening faces downward; Step 4: Fill the bottom of the mold cavity with high-pressure gas, and blow the oil block out of the mold with the high-pressure gas; Step 5: Put the oil blocks into bags and use a plastic sealing machine to vacuum evacuate and seal the oil blocks.

2. The method for demoulding an oil block according to claim 1, characterized in that: In step one, the mass of the base material is 250 g, the base material temperature is 90-100° C., the mass of the oil is 250 g, the oil temperature is 95-100° C., the dry material is any combination of pepper, dried chili, star anise and cumin, and the dry material temperature is room temperature.

3. The method for demoulding an oil block according to claim 1, characterized in that: In step 2, the cooling temperature of the cooling chamber is 5-10° C., and the cooling time is 10 minutes.

4. The method for demoulding an oil block according to claim 1, characterized in that: The pneumatic oil demoulding mold comprises a mold cavity (1), a truncated cone-shaped air inlet with a larger upper portion and a smaller lower portion is opened in the middle of the bottom of the mold cavity (1), the air inlet is closed by the closed air valve (2), the truncated cone-shaped closed air valve (2) matches the shape of the air inlet, a lower pull rod (5) is fixed to the lower end surface of the closed air valve (2), and the lower pull rod (5) passes through the lower bottom of the high-pressure air chamber (3); The lower part of the pull-down rod (5) extending out of the high-pressure air chamber (3) is a threaded rod, on which a pull-down spring (6) and a nut (8) are mounted, and the pull-down spring (6) abuts between the high-pressure air chamber (3) and the nut (8).

5. The method for demoulding an oil block according to claim 4, characterized in that: In step 1, after closing the sealing valve (2), the base material, oil material and dry material are loaded into the mold cavity; In step 4, high-pressure gas is filled in, and the high-pressure gas opens the closed valve (2) through the high-pressure gas chamber (3), and the high-pressure gas is filled into the bottom of the mold cavity (1), and the high-pressure gas blows off the oil block to demould.

6. The method for demoulding an oil block according to claim 4, characterized in that: The lower bottom of the mold cavity (1) is connected to a high-pressure air chamber (3) via an air inlet, the air inlet is closed via a closed air valve (2), and the high-pressure air chamber (3) is provided with a one-way air inlet joint (4) connected to a high-pressure air source.

7. The method for demoulding an oil block according to claim 4, characterized in that: The mold cavity (1) is a stainless steel cavity, and the high-pressure air chamber (3) is welded to the bottom of the mold cavity (1); The side wall of the mold cavity (1) is provided with air release notches (9) evenly distributed in the middle; The included angle between the side wall of the mold cavity (1) and the cavity bottom is 91-95°.

8. The method for demoulding an oil block according to claim 4, characterized in that: The closed air valve (2) and the lower pull rod (5) are integrally formed; A sealing ring (7) is installed between the high-pressure air chamber (3) and the lower pull rod (5).

9. The method for demoulding an oil block according to claim 1, characterized in that: The pneumatic oil demoulding mold comprises a mold cavity (1), a truncated cone-shaped air inlet with a small upper part and a large lower part is opened in the middle of the cavity bottom of the mold cavity (1), and the air inlet is closed by the closed air valve (2). The truncated cone-shaped closed air valve (2) matches the shape of the air inlet, and a circle of arc-shaped groove (10) is opened in the middle of the truncated cone inclined surface of the air inlet, and the arc-shaped groove (10) is connected to a high-pressure air source. An upper push rod (11) is fixed to the lower end surface of the closed air valve (2), and the upper push rod (11) is sleeved with an upper push spring (13). The upper end of the upper push spring (13) abuts against the closed air valve (2), and the lower end of the upper push spring (13) abuts against a spring baffle, and the spring baffle (12) is fixedly connected to the outer wall of the high-pressure air chamber (3).

10. The method for molding and demoulding an oil block according to claim 9, characterized in that: A cylindrical through hole is formed at the lower part of the air inlet, and the lower part of the closed air valve (2) is a cylinder, which fits the cylindrical through hole, and a sealing ring (14) is arranged between the two. The diameter of the cylindrical through hole is equal to the diameter of the large end of the air inlet.

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