Biscuit extrusion forming device

Abstract

The utility model discloses a biscuit extrusion forming device which comprises a main roller and an auxiliary roller, and the main roller comprises an outer roller and an inner roller which is arranged in the outer roller and is coaxial with the outer roller; the outer roller rotates relative to the inner roller and rotates opposite to the auxiliary roller; a plurality of molds are embedded in the roller surface of the outer roller; a bulge part is arranged at the bottom of the roller surface of the inner roller; an air cavity extending in the radial direction is formed in the portion, on the inner side of each mold, of the outer roller, piston components are arranged in the air cavities, the radial inner ends of the piston components protrude out of the inner wall of the outer roller, and blowing channels are formed between mold cavities of the molds and the air cavities; an elastic component used for pushing and abutting against the piston component towards the radial outer side is arranged in the air cavity; when the end of the piston part passes through the protruding part of the inner roller, the protruding part forces the piston part to move outwards in the radial direction so that air in the air cavity can be blown to the blank in the cavity through the air blowing channel.

Description

Technical Field

[0001] This utility model relates to a biscuit extrusion molding device. Background Technology

[0002] Existing extrusion molding devices for making biscuits typically include a main roller and a secondary roller. The surface of the main roller is embedded with circumferentially and radially arranged molds, each mold having a cavity to hold the blank. The secondary roller is arranged parallel to the main roller. The main roller and secondary roller rotate in opposite directions to press the blank into the mold cavity, thereby shaping the blank. When the mold containing the blank rotates to the bottom with the main roller, the blank is ejected from the mold cavity by gravity and falls onto a conveyor belt.

[0003] The aforementioned molding apparatus in the prior art has the following problems:

[0004] Although coating the inside of the mold cavity with edible oil can reduce the friction between the blank and the cavity wall, some blanks still have difficulty being removed from the cavity by gravity. Utility Model Content

[0005] In view of the above-mentioned technical problems existing in the prior art, the present invention provides a biscuit extrusion molding device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted in the embodiments of this utility model is as follows:

[0007] A biscuit extrusion forming apparatus includes: a main roller and a secondary roller, the main roller and the secondary roller being arranged parallel to each other; the main roller includes an outer roller and an inner roller disposed within the outer roller and arranged coaxially with the outer roller; wherein:

[0008] The inner roller is fixedly arranged, and the outer roller rotates relative to the inner roller and rotates towards the auxiliary roller;

[0009] The outer roller has multiple molds embedded in its surface, and the multiple molds are arranged at intervals along the circumferential and axial directions; the bottom of the inner roller has a raised portion, and the molds pass through the raised portion when the outer roller rotates.

[0010] Each mold has a radially extending air cavity in the outer roller on its inner side. A piston component is provided in the air cavity, and the radially inner end of the piston component protrudes from the inner wall of the outer roller. A blowing channel is established between the mold cavity and the air cavity. An elastic component is provided in the air cavity for pushing the piston component radially outward. When the end of the piston component passes the bulge of the inner roller, the bulge forces the piston component to move radially outward so that the gas in the air cavity is blown into the blank in the cavity through the blowing channel.

[0011] Preferably, a base plate is installed at the bottom of the cavity of the mold, the base plate and the bottom of the cavity define a channel, the channel is connected to the air blowing channel, and an air blowing hole is opened on the base plate, the air blowing hole is connected to the channel.

[0012] Preferably, the air inlet extends at an angle.

[0013] Preferably, the main roller has an embedding groove, the mold is embedded in the embedding groove, and the mold is detachably fixed in the embedding groove by countersunk screws passing through the bottom of the mold.

[0014] Preferably, the piston component has an intake channel that connects the air chamber to the outside. A one-way valve is installed in the intake channel, which allows outside gas to enter the air chamber through the intake channel and then cuts it off in the reverse direction.

[0015] Preferably, the radial inner end of the piston component is machined into a ball head.

[0016] Compared with the prior art, the beneficial effects of the biscuit extrusion molding device disclosed in this utility model are:

[0017] The extrusion molding apparatus provided by this invention can largely prevent the extruded blank from failing to come out of the mold cavity.

[0018] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0019] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0020] Figure 1 This is a schematic diagram of the structure of the biscuit extrusion molding device provided in an embodiment of the present invention.

[0021] Figure 2 for Figure 1 A magnified view of part A.

[0022] Figure Labels

[0023] 10-Main roller; 11-Outer roller; 12-Inner roller; 121-Raised part; 30-Mold; 31-Cavity; 32-Base; 321-Channel; 322-Air blowing hole; 40-Piston component; 41-Ball head; 50-Air chamber; 51-Air blowing channel; 60-Air suction channel; 61-One-way air valve; 100-Burnt material; 200-Conveyor belt. Detailed Implementation

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0026] like Figure 1 and Figure 2 As shown in the figure, an embodiment of the present invention discloses a biscuit extrusion molding device, which includes a main roller 10 and a secondary roller; the main roller 10 and the secondary roller are arranged in parallel.

[0027] The main roller 10 includes an outer roller 11 and an inner roller 12. The inner roller 12 is arranged inside the main roller 10 and is coaxial with the main roller 10. An external drive device (e.g., a motor) drives the outer roller 11 to rotate in opposite directions to the auxiliary roller.

[0028] Numerous embedding grooves are formed on the surface of the main roller 10. These grooves are spaced apart circumferentially and axially. Each groove contains a mold 30 with a cavity 31. The mold 30 is detachably fixed in the groove by means of a countersunk screw threading through the bottom of the mold 30 and screwing it into the outer roller 11, which facilitates the replacement of the mold 30. Figure 1 As shown, in the cross-sectional structure of the main roller 10, the mold 30 is arranged circumferentially. In use, the outer roller 11 and the auxiliary roller rotate in opposite directions to extrude the blank 100 in the cavity 31 of the mold 30, so that the blank 100 is formed. After the blank 100 is extruded and formed, the blank 100 and the mold 30 move towards the bottom as the outer roller 11 rotates counterclockwise.

[0029] Each mold 30 has an air chamber 50 arranged in the outer roller 11 on its radially inner side. The air chamber 50 extends radially and contains a piston component 40 that can move radially along the air chamber 50 after force is applied. An air blowing channel 51 is arranged between the air chamber 50 and the cavity 31 of the mold 30. A base 32 is mounted at the bottom of the cavity 31 of the mold 30, and the base 32 and the cavity bottom define a plurality of radially extending channels 321 that communicate with the air blowing channel 51. An air blowing hole 22 is provided on the base 32 and communicates with the channels 321. Preferably, the air blowing hole 22 is made to extend further.

[0030] A spring is provided in the air cavity 50. The spring is used to push the piston component 40 radially inward so that the radially inner end of the piston component 40 protrudes radially from the inner wall of the outer roller 11 under the action of the spring force. The radially inner end of the piston component 40 is machined into a ball head 41.

[0031] The inner roller 12 remains fixed relative to the outer roller 11, that is, the inner roller 12 is restricted from rotating. Thus, when the outer roller 11 and the auxiliary roller rotate towards each other, the inner roller 12 remains stationary, while the outer roller 11 rotates relative to the inner roller 12. A raised portion 121 is disposed on the roller surface of the inner roller 12, which extends along the axial direction of the inner roller 12 and is located at the bottom of the inner roller 12, specifically, on one side of the lowest position of the inner roller 12.

[0032] After the outer roller 11 and the auxiliary roller rotate in opposite directions to extrude the blank 100 into the cavity 31 of the mold 30, the extruded blank 100 and the corresponding mold 30 rotate downward with the outer roller 11. When the piston component 40 corresponding to the mold 30 passes the raised portion 121, the raised portion 121 forces the piston component 40 to move radially outward to push the gas in the air chamber 50 through the blowing channel 51, the orifice 321, and the blowing hole 22 towards the blank 100 in the cavity 31, thereby reducing the bonding force between the blank 100 and the cavity wall of the cavity 31, in preparation for the blank 100 to detach from the cavity 31. When the blank 100 rotates to the lowest position with the outer roller 11, the blank 100 is more easily ejected from the cavity 31 and falls onto the conveyor belt 200. Therefore, the extrusion molding device provided by this utility model can largely prevent the extruded blank 100 from failing to detach from the cavity 31 of the mold 30.

[0033] An air intake passage 60 is provided in the piston component 40, which allows the outside world to communicate with the air chamber 50. A one-way valve 61 is provided in the air intake passage 60. When the protrusion 121 forces the piston component 40 to move, the one-way valve 61 closes. After the piston component 40 passes the protrusion 121 and moves away from the protrusion 121, the piston component 40 returns to its radially inward position under the action of the spring. At the same time, the one-way valve 61 opens, and outside air enters the air chamber 50 through the air intake passage 60 to prepare for the next blowing.

[0034] Furthermore, although exemplary embodiments have been described in this invention, its scope includes any and all embodiments based on this invention that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, which will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered illustrative only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0035] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments can be used by those skilled in the art when reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the invention. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the invention may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated to be combined with each other in various combinations or arrangements. The scope of the invention should be determined by reference to the appended claims and the full scope of their equivalents.

[0036] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A biscuit extrusion molding apparatus, comprising: A main roller and a secondary roller, wherein the main roller and the secondary roller are arranged in parallel, characterized in that the main roller includes an outer roller and an inner roller disposed within the outer roller and arranged coaxially with the outer roller; wherein: The inner roller is fixedly arranged, and the outer roller rotates relative to the inner roller and rotates towards the auxiliary roller; The outer roller has multiple molds embedded in its surface, and the multiple molds are arranged at intervals along the circumferential and axial directions; the bottom of the inner roller has a raised portion, and the molds pass through the raised portion when the outer roller rotates. Each mold has a radially extending air cavity in the outer roller on its inner side. A piston component is provided in the air cavity, and the radially inner end of the piston component protrudes from the inner wall of the outer roller. An air blowing channel is established between the mold cavity and the air cavity. An elastic component is provided in the air cavity for pushing the piston component radially outward. When the end of the piston component passes the bulge of the inner roller, the bulge forces the piston component to move radially outward so that the gas in the air cavity is blown into the blank in the mold cavity through the air blowing channel.

2. The biscuit extrusion molding apparatus according to claim 1, characterized in that, A base plate is installed at the bottom of the cavity of the mold, and the base plate and the bottom of the cavity define a channel. The channel is connected to the air blowing channel, and an air blowing hole is opened on the base plate, which is connected to the channel.

3. The biscuit extrusion molding apparatus according to claim 2, characterized in that, The air inlet extends at an angle.

4. The biscuit extrusion molding apparatus according to claim 1, characterized in that, The main roller has an embedding groove, and the mold is embedded in the embedding groove. The mold is detachably fixed in the embedding groove by countersunk screws passing through the bottom of the mold.

5. The biscuit extrusion molding apparatus according to claim 1, characterized in that, The piston assembly has an intake channel that connects the air chamber to the outside. A one-way valve is installed in the intake channel, which allows outside gas to enter the air chamber through the intake channel and then cuts it off in the reverse direction.

6. The biscuit extrusion molding apparatus according to claim 1, characterized in that, The radial inner end of the piston component is machined into a ball head.

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