Throat lozenge, production method thereof and sandwich device

Abstract

The invention relates to the technical field of candy production, in particular to a throat lozenge and a production method and a sandwich device.The throat lozenge sequentially comprises a hard candy shell layer, a soft gel layer and a core layer with flowability from outside to inside, the gel layer and the core layer both contain glycerin and throat-moistening functional substances, the weight of the glycerol in the gel layer accounts for 3%-6% of the weight of the gel layer, and the weight of the glycerol in the core layer accounts for 10%-20% of the weight of the core layer. The throat lozenge is small in sugar content, the release speed of effective components is high, and meanwhile, the irritation of sweet substances to the throat and tracheal mucosa can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of candy production, and in particular to a throat lozenge and a production method and a sandwich device thereof. Background Art

[0002] There are many kinds of throat lozenges on the market now, including hard candies, sandwich candies, and soft candies, with different effects. However, the active ingredients in hard candies need to precipitate as the sugar body melts, and the release is slow. Sandwich candies and soft candies are less likely to contain bubbles and are usually swallowed after chewing. Although the active ingredients are released quickly, the time they act on the throat is very short. At the same time, throat lozenges contain a large proportion of sugar, which not only inhibits the release of active ingredients, but also as a sweet food, it is easy to irritate the throat and or bronchial mucosa, causing the cough to worsen.

[0003] Therefore, developing a throat lozenge that releases active ingredients quickly and reduces the irritation of sweet substances to the throat or bronchial mucosa will have a positive effect on the development of functional candies. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a throat lozenge and a production method and a sandwich device thereof. The throat lozenge has a fast release rate of effective ingredients and can also reduce the irritation of the throat and tracheal mucosa by sweet substances.

[0005] The technical solution adopted in this application to solve this technical problem is:

[0006] A throat lozenge comprises, from outside to inside, a hard sugar shell layer, a soft gel layer and a fluid core layer, wherein both the gel layer and the core layer contain glycerin and throat-soothing functional substances, wherein the functional substances are compounded from Chinese herbal extracts having the effects of clearing the throat, moistening the lungs, relieving asthma, relieving cough and the like, wherein the weight of the glycerin in the gel layer accounts for 3% to 6% of the weight of the gel layer, the weight of the glycerin in the core layer accounts for 10% to 20% of the weight of the core layer, and the core layer has fluidity.

[0007] Furthermore, the weight of the sugar shell layer accounts for 25% to 30% of the weight of the throat lozenge, the weight of the gel layer accounts for 50% to 60% of the weight of the throat lozenge, and the rest is the core layer. The concentration of the throat-soothing functional substance in the core layer is greater than that in the gel layer.

[0008] Furthermore, the gel layer also includes modified starch, sugars and coloring and flavoring agents.

[0009] Furthermore, high-acidity scattered points are distributed in the sugar shell layer. The high-acidity scattered points are high-acidity areas formed by citric acid particles or citric acid particles dissolved in sugar. The acidity of the high-acidity scattered points is higher than that of other areas of the sugar shell layer. These areas can produce a strong sour feeling when in contact with saliva.

[0010] The production method of the above-mentioned throat lozenges comprises the following steps:

[0011] Step S1: preparing raw materials: preparing the raw material of the sugar shell layer, the raw material of the gel layer and the liquid material of the core layer respectively, which specifically includes the following steps:

[0012] Step S11: preparing a material blank for the sugar shell layer, adding hard candy raw materials into a first sugar boiling pot, boiling to form hard candy syrup, the hard candy syrup is formed into a sheet during transportation at 80-90° C., citric acid liquid droplets are evenly distributed on the surface of the sheet, and then rolled to form a strip-shaped candy blank at 70-80° C.;

[0013] Step S12: preparing raw materials for the gel layer, adding raw materials for the gel composition into the second sugar boiling pot to make a gel composition, and keeping it warm at 45-55° C.;

[0014] Step S13: preparing the raw materials for the core layer, adding the raw materials for the core layer into the third sugar boiling pot, mixing to obtain the core liquid, and storing at room temperature;

[0015] Step S2: Sandwiching: stacking the strip-shaped candy blank obtained in step S11 at 70-80° C. to form a columnar candy body, injecting the gel composition obtained in step S12 into the columnar candy body using a sandwich device to form a gel filling area, and injecting the core liquid obtained in step S13 into the gel filling area to form a columnar candy body with a three-layer structure;

[0016] Step S3: Forming: The columnar sugar body obtained in step S2 is stretched and heated to form a sugar rope, which is then extruded, cut, cooled and packaged to obtain the throat lozenge.

[0017] A sandwich device for throat lozenges is used to realize mechanized production in the processing of the above-mentioned throat lozenges, comprising a heat-insulating roller bed, the heat-insulating roller bed comprising a bracket, four heat-insulating rollers connected to the bracket and rotating synchronously, and a material injection mechanism, the four heat-insulating rollers are arranged in a square shape on the bracket, and an injection mechanism connected to the bracket is arranged between the four heat-insulating rollers, the injection mechanism comprises an outer sleeve and an inner core tube, the middle part of the outer sleeve is connected to the bracket, one end of the outer sleeve located outside the bracket is connected to a second sugar-boiling pot via a first injection mechanism, one end of the outer sleeve located inside the bracket extends along the axial direction of the arrangement of multiple heat-insulating rollers, the discharge end of the inner core tube passes through the outer sleeve and extends into the inner sleeve, and the feed end of the inner core tube is connected to a third sugar-boiling pot via a second injection mechanism.

[0018] Furthermore, the bracket is provided with a sliding block which slides up and down along the bracket, and the outer sleeve is connected to the sliding block.

[0019] Furthermore, the outer sleeve includes a first pipe segment and a second pipe segment, the first pipe segment is connected to the bracket, the second pipe segment is rotatably connected to the first pipe segment, and the inner core tube extends from the first pipe segment into the outer sleeve.

[0020] Furthermore, one end of the second pipe segment connected to the first pipe segment is the inlet end, and the other end is the outlet end. The cross-section of the inlet end of the second pipe segment is circular, and the second pipe segment is provided with at least three grooves that are gradually concave from the inlet end to the outlet end.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The throat lozenge of the present invention comprises a three-layer structure with a relatively low sugar content, wherein the outer sugar shell layer is mainly used to protect the inner layer structure and also used to stimulate saliva secretion, the gel layer is used to slowly release substances with throat-soothing functional properties, and has the effects of clearing the throat, moistening the lungs, relieving asthma, relieving cough and the like, and the core layer flows out quickly when the throat lozenge is bitten, and after mixing with saliva, forms a glycerin mixture with a relatively high glycerin concentration, a viscous and greasy feel, and after swallowing, the glycerin mixture is applied to form a film at the throat, the throat-soothing functional substances contained in the glycerin mixture can relieve the throat for a long time, and after the glycerin forms a film at the throat, it can reduce the stimulation of sweetness on the throat and bronchial mucosa, and can also moisturize the mucosal layer, and after consumption, it can reduce the vibration and friction of the throat and bronchial mucosa during subsequent speaking to a certain extent, thereby reducing subsequent damage.

[0023] The throat lozenge production method and sandwich device of the present invention can realize the production of the throat lozenge of the present invention by only making a small change to the existing hard candy production device, and achieve the double sandwich effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the throat lozenge of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the sandwich device of the present invention;

[0026] Figure 3 is a sectional front view of the sandwich device of the present invention;

[0027] Figure 4 yes Figure 2 A magnified view of part A;

[0028] Figure 5 yes Figure 3 BB section view;

[0029] Figure 6 It is a structural schematic diagram of the connection between the outer sleeve and the inner core tube of the present invention;

[0030] Figure 7 It is a sectional front view of the connection between the outer sleeve and the inner core tube of the present invention.

[0031] The numbers in the attached drawings are: 1, sugar shell layer; 2, gel layer; 3, core layer; 4, second sugar boiling pot; 5, third sugar boiling pot; 6, bracket; 7, insulation roller; 8, injection mechanism; 9, chain; 10, driving motor; 11, outer sleeve; 12, inner core tube; 13, sliding block; 14, first pipe section; 15, second pipe section; 16, tank body. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] like Figure 1 As shown, a throat lozenge comprises a hard sugar shell layer 1, a soft gel layer 2 and a fluid core layer 3 from the outside to the inside, wherein the hard sugar shell layer 1 is used as a wrapping material and a protective material to protect the gel layer 2 and the core layer 3, thereby reducing the overall rupture of the throat lozenge or liquid spillage caused by squeezing during the production process or storage and transportation process, and the gel layer 2 and the core layer 3 both contain glycerin and throat-soothing functional substances, wherein the throat-soothing functional substances have the effects of clearing the throat, moistening the lungs, relieving asthma, and relieving cough. There are many such compositions in the prior art, such as a Chinese medicine composition for strengthening the spleen, resolving phlegm and relieving cough disclosed in the patent document with application number CN202410801805.X, a Chinese medicine composition for relieving pharyngitis and relieving cough and reducing phlegm disclosed in the patent document with application number CN202211327700.2, and a Chinese medicine composition for clearing throat and health care disclosed in the patent document with application number CN201510309797.8. The amount of addition can also be adjusted according to the actual situation. The weight of glycerin in the gel layer 2 accounts for 3% to 6% of the weight of the gel layer 2, and the weight of glycerin in the core layer 3 accounts for 10% to 20% of the weight of the core layer 3. The core layer 3 has fluidity. When the throat lozenge is bitten, the hard sugar shell layer 1 is broken, and the gel layer 2 is cracked accordingly. The core layer 3 flows out and mixes with saliva to form a glycerin mixture with high glycerin concentration and viscous and greasy. After swallowing, the glycerin mixture is applied to the throat to form a film. The throat-soothing functional substances contained in the glycerin mixture can relieve the throat for a long time, and after the glycerin forms a film in the throat, it can slow down the stimulation of the throat and bronchial mucosa by sweetness. In the subsequent chewing process, the sugar shell layer 1 and the gel layer 2 gradually melt, releasing the glycerin and throat-soothing functional substances therein, which continue to play a role in the throat, and the effective time is long. The protective film formed by glycerin can also moisturize the mucosal layer. After consumption, it can reduce the vibration and friction of the throat and bronchial mucosa during subsequent speaking to a certain extent, thereby reducing subsequent damage.

[0034] The weight of the sugar shell layer 1 accounts for 25% to 30% of the weight of the throat lozenge, the weight of the gel layer 2 accounts for 50% to 60% of the weight of the throat lozenge, and the rest is the core layer 3. The concentration of the throat-soothing functional substance in the core layer 3 is greater than that in the gel layer 2.

[0035] The hard sugar shell layer 1 is an indispensable component, which is formed using a conventional hard candy formula and preparation method. The overall sugar content of the throat lozenge is only 25% to 30%, which is relatively small. The gel layer 2 is a gel composition with a soft candy or a soft candy-like texture, and can be produced using a conventional soft candy method. The difference is that the gel layer 2 is mixed with throat-soothing functional substances, which will be gradually released as the gel layer 2 melts.

[0036] The gel layer 2 also includes modified starch, sugars and coloring and flavoring agents; the edibility and interest of the throat lozenges are increased, the melting speed of the gel layer 2 is improved, and the melting speed of the gel layer 2 is close to or lags behind the melting speed of the sugar shell layer 1, so that excessive sugar can reduce the stimulation of the throat and bronchial mucosa.

[0037] As a further improvement, high-acidity scattered points are distributed in the sugar shell layer. The high-acidity scattered points are high-acidity areas formed by citric acid particles or citric acid particles dissolved in sugar. The acidity of the high-acidity scattered points is higher than the acidity of other areas of the sugar shell layer; these areas can produce a strong sour feeling when in contact with saliva.

[0038] There are points with higher acidity dispersed in the sugar shell layer 1. Citric acid particles or points with higher citric acid concentration can produce higher acidity when in contact with saliva. Occasionally, taste receptors come into contact with these points with higher acidity, which can promote saliva secretion and thus accelerate the dissolution of the sugar shell layer 1 and the gel layer 2.

[0039] The production method of the above-mentioned throat lozenges comprises the following steps:

[0040] Step S1: preparing raw materials: preparing the raw material of the sugar shell layer 1, the raw material of the gel layer 2 and the liquid material of the core layer 3 respectively, which specifically includes the following steps:

[0041] Step S11: preparing a blank of the sugar shell layer 1, adding white sugar, glucose syrup, citric acid, flavoring agent, colorant and other hard candy raw materials into a first sugar boiling pot, and boiling to make hard candy syrup, which is formed into a sheet at 80-90° C. during transportation, and citric acid liquid droplets are evenly distributed on the surface, and then curled to form a strip of candy blank at 70-80° C.; there are many ways to evenly distribute citric acid liquid droplets on the surface of the sheet sugar, such as a candy production online acidification device published in application number CN202410537958.8, and throwing sugar powder containing a high concentration of citric acid on the surface of the sheet sugar.

[0042] Step S12: preparing raw materials for the gel layer 2, adding sugar, glycerin, edible gel material, water, throat-soothing functional substances, and flavoring and coloring aids and other raw materials for the gel composition into the second sugar-boiling pot 4 to make a gel composition, and keeping it warm at 45-55°C;

[0043] Step S13: preparing the raw materials for the core layer 3, adding glucose syrup, glycerin, edible gel material, water and throat-soothing functional substance and other raw materials for the core layer 3 into the third sugar-boiling pot 5, mixing to obtain the core liquid, and storing at room temperature;

[0044] Step S2: Sandwiching: stacking the strip-shaped candy blank obtained in step S11 at 70-80° C. to form a columnar candy body, injecting the gel composition obtained in step S12 into the columnar candy body using a sandwich device to form a gel filling area, and injecting the core liquid obtained in step S13 into the gel filling area to form a columnar candy body with a three-layer structure;

[0045] Step S3: Forming: The columnar sugar body obtained in step S2 is stretched and heated to form a sugar rope, and then extruded, cut, cooled and packaged to obtain throat lozenges.

[0046] The raw materials of the three-layer structure are stored at different temperatures, which can prevent the material properties from changing and optimize the cooling effect. The gel layer 2 is in a relatively viscous liquid state at 45-55°C, so that it can form an intermediate layer when transported into the columnar sugar body and is not easy to mix with the core layer 3. The core layer 3 is at room temperature and can quickly cool down the contact interface when it contacts the raw materials of the gel layer 2. The gel at the contact interface condenses to form a thin layer structure surrounding the core layer 3, reducing the mixing of the gel layer 2 and the core layer 3, and is also beneficial to keeping the core layer 3 located at the center of the gel layer 2. In order to be able to shape, the temperature of the sugar shell layer 1 is relatively high, reaching 70-80°C. After contacting the gel layer 2, the viscosity of the gel at the contact interface decreases and the fluidity is improved. After cooling, the connection between the sugar shell layer 1 and the gel layer 2 can be better achieved. In the subsequent stretching process of the columnar sugar body, its internal temperature has tended to be uniform through heat transfer, and the temperature gradient is small. At the same time, the three-layer structure is also relatively stable, which does not affect the pulling and subsequent processing of the sugar body.

[0047] Example 1

[0048] Raw material ratio:

[0049] Sugar shell layer: 185g white sugar, 54g glucose syrup, 20g sorbitol, 0.06g aspartame, 2.4g citric acid, 0.02g flavor;

[0050] Gel layer: glucose syrup 150g, white sugar 80g, pectin 30g, gelatin 30g, glycerin 25g, throat moistening functional substance 35g, modified starch 16g, water 130g, fruit juice 15g, essence 0.05g;

[0051] Core layer: 160g water, 25g glycerin, 10g glucose syrup, 40g throat-soothing functional substance, 1g agar, trace amount of pigment;

[0052] The above-mentioned throat-soothing functional substances are water extracts of Sterculia lychnophora, Momordica grosvenori, chrysanthemum, mulberry leaf, mint and honeysuckle.

[0053] Key points of the process: during the preparation of the sugar shell layer, 2 / 3 of the citric acid is added to the sugar boiling pot, and the remaining citric acid is prepared as a solution and dispersed inside the sugar blank during the process of forming the ribbon-shaped sugar blank; during the preparation of the gelatin layer, a portion of water is first used to add gelatin and pectin to other containers and heated to 90°C to melt, and then modified starch, throat-soothing functional substances, fruit juice, essence, etc. are added to obtain gel, and then glucose syrup, white sugar and other water are added to the second sugar boiling pot for boiling, and the heating is stopped when the temperature reaches 115°C, and when it is cooled to below 95°C, the melted gel is added, mixed evenly, and then added to continue cooling to 45-55°C, and the cooling process is allowed to stand for defoaming, and the heat is kept for use; during the preparation of the core layer, all the raw materials are added to the third sugar boiling pot, stirred and heated to 90°C, and after the agar is melted, it is allowed to stand for defoaming, and cooled to room temperature for use; the prepared throat lozenges are about 2g / piece.

[0054] Example 2

[0055] Raw material ratio:

[0056] Sugar shell layer: 215g white sugar, 54g glucose syrup, 24g sorbitol, 0.07g aspartame, 3g citric acid, 0.02g flavor;

[0057] Gel layer: 200g glucose syrup, 90g white sugar, 35g pectin, 30g gelatin, 30g glycerin, 30g throat moistening functional substance, 20g modified starch, 150g water, 15g fruit juice, 0.05g essence;

[0058] Core layer: 70g water, 15g glycerin, 5g glucose syrup, 30g throat moistening functional substance, 0.5g agar, trace amount of pigment;

[0059] The above-mentioned throat-soothing functional substances are water extracts of Sterculia lychnophora, Momordica grosvenori, chrysanthemum, mulberry leaf, mint and honeysuckle.

[0060] Key points of the process: during the preparation of the sugar shell layer, 2 / 3 of the citric acid is added to the sugar boiling pot, and the remaining citric acid is prepared as a solution and dispersed inside the sugar blank during the process of forming the ribbon-shaped sugar blank; during the preparation of the gelatin layer, a portion of water is first used to add gelatin and pectin to other containers and heated to 90°C to melt, and then modified starch, throat-soothing functional substances, fruit juice, essence, etc. are added to obtain gel, and then glucose syrup, white sugar and other water are added to the second sugar boiling pot for boiling, and the heating is stopped when the temperature reaches 115°C, and when it is cooled to below 95°C, the melted gel is added, mixed evenly, and then added to continue cooling to 45-55°C, and the cooling process is allowed to stand for defoaming, and the heat is kept for use; during the preparation of the core layer, all the raw materials are added to the third sugar boiling pot, stirred and heated to 90°C, and after the agar is melted, it is allowed to stand for defoaming, and cooled to room temperature for use; the prepared throat lozenges are about 2g / piece.

[0061] Example 3

[0062] Raw material ratio:

[0063] Sugar shell layer: 215g white sugar, 54g glucose syrup, 24g sorbitol, 0.07g aspartame, 4g citric acid, 0.02g flavor;

[0064] Gel layer: glucose syrup 150g, white sugar 80g, pectin 30g, gelatin 30g, glycerin 25g, throat moistening functional substance 35g, modified starch 16g, water 130g, fruit juice 15g, essence 0.05g;

[0065] Core layer: 130g water, 40g glycerin, 5g glucose syrup, 30g throat-soothing functional substance, 0.5g agar, trace amount of pigment;

[0066] The above-mentioned throat-soothing functional substance is water extracts of Chinese medicinal materials such as Sterculia lychnophora, Momordica grosvenori, chrysanthemum, mulberry leaf, mint, honeysuckle, etc., and a combination of other materials can also be selected.

[0067] Key points of the process: during the preparation of the sugar shell layer, all the citric acid is added to the sugar boiling pot; during the preparation of the gel layer, a portion of water is first used to add gelatin and pectin to other containers and heated to 90°C to melt, and then modified starch, throat-soothing functional substances, fruit juice, essence, etc. are added to obtain gel, and then glucose syrup, white sugar and other water are added to the second sugar boiling pot for boiling, and heating is stopped when the temperature reaches 115°C, and when it is cooled to below 95°C, the melted gel is added, mixed evenly, and then added to continue cooling to 45-55°C, and the cooling process is allowed to stand for defoaming, and the heat is kept for use; during the preparation of the core layer, all the raw materials are added to the third sugar boiling pot, stirred and heated to 90°C, and after the agar is melted, it is allowed to stand for defoaming, and cooled to room temperature for use; the prepared throat lozenges are about 2g / piece.

[0068] Example 4

[0069] Raw material ratio:

[0070] Sugar shell layer: 215g white sugar, 54g glucose syrup, 24g sorbitol, 0.07g aspartame, 3g citric acid, 0.02g flavor;

[0071] Gel layer: glucose syrup 150g, white sugar 80g, pectin 30g, gelatin 30g, glycerin 25g, throat moistening functional substance 35g, modified starch 20g, water 130g, fruit juice 15g, essence 0.05g;

[0072] Core layer: 100g water, 30g glycerin, 10g glucose syrup, 30g throat soothing functional substance, 0.5g agar, trace amount of pigment;

[0073] The above-mentioned throat-soothing functional substances are water extracts of Sterculia lychnophora, Momordica grosvenori, chrysanthemum, mulberry leaf, mint and honeysuckle.

[0074] Key points of the process: during the preparation of the sugar shell layer, 2 / 3 of the citric acid is added to the sugar boiling pot, and the remaining citric acid is prepared as a solution and dispersed inside the sugar blank during the process of forming the ribbon-shaped sugar blank; during the preparation of the gelatin layer, a portion of water is first used to add gelatin and pectin to other containers and heated to 90°C to melt, and then modified starch, throat-soothing functional substances, fruit juice, essence, etc. are added to obtain gel, and then glucose syrup, white sugar and other water are added to the second sugar boiling pot for boiling, and the heating is stopped when the temperature reaches 115°C, and when it is cooled to below 95°C, the melted gel is added, mixed evenly, and then added to continue cooling to 45-55°C, and the cooling process is allowed to stand for defoaming, and the heat is kept for use; during the preparation of the core layer, all the raw materials are added to the third sugar boiling pot, stirred and heated to 90°C, and after the agar is melted, it is allowed to stand for defoaming, and cooled to room temperature for use; the prepared throat lozenges are about 2g / piece.

[0075] Examples 1 to 4 were all prepared as throat lozenge granules, and the performance and taste thereof were tested and the results were as follows:

[0076]

[0077]

[0078] Among them, the compression resistance test method is to use the HP620 sugar cube hardness tester for testing.

[0079] Few existing candy manufacturing equipment can perform double sandwiching at the same time, so it is necessary to modify the existing device to enable it to achieve the double sandwiching function, such as Figure 2 and Figure 3As shown, a sandwich device for throat lozenges is used to realize mechanized production in the processing of the above-mentioned throat lozenges, including a heat-insulating roller bed, the heat-insulating roller bed includes a bracket 6, four heat-insulating rollers 7 connected to the bracket 6 and rotating synchronously, and an injection mechanism 8, each heat-insulating roller 7 is a tapered roller with a large diameter at one end and a small diameter at the other end, and the ends with large diameters are far away from each other and the ends with small diameters are close to each other, the four heat-insulating rollers 7 are arranged in a square on the bracket 6, the four heat-insulating rollers 7 are connected by a chain 9, and are driven by the same driving motor 10 to rotate synchronously, and an injection mechanism 8 connected to the bracket 6 is provided between the four heat-insulating rollers, the injection mechanism 8 includes an outer sleeve 11 and an inner core tube 12, the middle part of the outer sleeve 11 is connected to the bracket 6, the end of the outer sleeve 11 located outside the bracket 6 is connected to the second sugar-boiling pot 4 through the first slurry injection mechanism, and the end of the outer sleeve 11 located inside the bracket 6 extends along the axial direction of the arrangement of the multiple heat-insulating rollers 7, as shown in FIG. Figure 1 and Figure 5 As shown, the arrangement of the four insulation rollers 7 can be regarded as the four side edges of a quadrangular pyramid, the outer sleeve 11 is located on the central axis of the quadrangular pyramid, the discharge end of the inner core tube 12 penetrates the outer sleeve 11 and extends into the inner sleeve 11, the inner core tube 12 is connected to the third sugar boiling pot 5 through the second grouting mechanism (not shown in the figure), and the core liquid is injected into the center of the raw material of the gel layer 2 transported in the outer sleeve 11. The first grouting mechanism and the second grouting mechanism are both grouting pumps in this embodiment, and mechanisms with output pressure such as extruders and gear pumps can also be selected.

[0080] The four heat-keeping rollers 7 rotate clockwise for a period of time at the same time and then rotate counterclockwise for a period of time at the same time, and the cycle repeats, so that the strip-shaped sugar blank forms a columnar sugar body between the four heat-keeping rollers 7, wherein the columnar sugar body has a large diameter at one end and a small diameter at the other end, and is coated on the outer sleeve 11. The strip-shaped sugar blank falls directly between the four heat-keeping rollers 7 from the top of the support 6 to realize the continuous feeding of the sugar shell layer 1, the raw material of the gel layer 2 is squeezed into between the outer sleeve 11 and the inner core tube 12 by the first grouting mechanism, and moves toward the discharge end of the outer sleeve 11, the raw material of the core layer 3 is squeezed into the inner core tube 12 by the second grouting mechanism, and moves toward the discharge end of the inner core tube 12, and is filled into the columnar sugar body to form a double sandwich, and the columnar sugar body with the double sandwich is pulled by a drawing machine, extruded, cut, cooled, and packaged to obtain throat lozenges.

[0081] Only minor improvements to existing hard candy production equipment can achieve mechanical sandwiching during the production process, improve production efficiency, and keep the layers of the structure in a concentric position.

[0082] like Figure 4 As shown, the bracket 6 is provided with a sliding block 13 which slides up and down along the bracket 6 , and the outer sleeve 11 is connected to the sliding block 13 .

[0083] The outer sleeve 11 slides up and down on the sliding block 13 to adapt to the floating up and down center of sugar bodies of different diameters on the heat-insulating roller bed, so that the outer sleeve 11 and the columnar sugar body can always maintain the same axis. In this way, even if the raw material supply of the sugar shell layer 1 is occasionally not timely and the diameter of the columnar sugar body is reduced, the outer sleeve 11 and the sugar body can still be stably and tightly connected, and no gap will be generated due to different axes, thereby reducing leakage problems.

[0084] like Figure 6 and Figure 7 As shown, the outer sleeve 11 includes a first pipe segment 14 and a second pipe segment 15 , the first pipe segment 14 is connected to the bracket 6 , the second pipe segment 15 is rotatably connected to the first pipe segment 14 , and the inner core tube 12 extends from the first pipe segment 14 into the outer sleeve 11 .

[0085] The second tube section 15 is rotatably connected to the first tube section 14 so that the columnar sugar body can maintain contact with the second tube section 15, reducing gaps and thus reducing leakage problems. It also reduces the occurrence of unstable production conditions caused by adhesion between the sugar shell layer 1 and the outer sleeve 11.

[0086] One end of the second pipe segment 15 connected to the first pipe segment 14 is the inlet end, and the other end is the outlet end. The cross-section of the inlet end of the second pipe segment 15 is circular. The second pipe segment 15 is provided with at least three grooves 16 that are gradually concave from the inlet end to the outlet end. The contour of the outlet end of the second pipe segment 15 is a smoothly transitioned annular curve with at least three depressions.

[0087] like Figure 5 As shown, Figure 5 The diagram shows the state of the sugar body rotating between four heat-insulating rollers. The concave design enables the columnar sugar body to drive the second pipe section 15 to rotate synchronously when being driven to rotate by the heat-insulating roller bed, so that part of the material that is about to form the sugar shell layer 1 and part of the material that is about to form the gel layer 2 rotate synchronously, maintaining the stability of the interface of the three-layer structure, ensuring that the gel layer 2 and the core layer 3 are evenly distributed in the sugar shell layer 1, and no problem of twisting or breaking of the outer layer of the sugar shell layer 1 due to adhesion between the raw material of the sugar shell layer 1 and the outer sleeve 11 occurs, thereby ensuring product quality.

[0088] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

Claims

1. A throat lozenge, characterized in that: The throat lozenge comprises, from the outside to the inside, a hard sugar shell layer (1), a soft gel layer (2) and a fluid core layer (3), wherein both the gel layer (2) and the core layer (3) contain glycerol and throat-soothing functional substances, wherein the weight of the glycerol in the gel layer (2) accounts for 3% to 6% of the weight of the gel layer (2), and the weight of the glycerol in the core layer (3) accounts for 10% to 20% of the weight of the core layer (3).

2. The throat lozenge according to claim 1, characterized in that: The weight of the sugar shell layer (1) accounts for 25% to 30% of the weight of the throat lozenge, the weight of the gel layer (2) accounts for 50% to 60% of the weight of the throat lozenge, and the rest is the core layer (3).

3. A method for producing throat lozenges, for producing the throat lozenges according to any one of claims 1 to 2, characterized in that: The following steps are involved: Step S1: preparing raw materials: preparing the raw material of the sugar shell layer (1), the raw material of the gel layer (2) and the liquid material of the core layer (3) respectively, which specifically includes the following steps: Step S11: preparing a material blank of the sugar shell layer (1), adding hard candy raw materials into a first sugar boiling pot, boiling to form hard candy syrup, the hard candy syrup is formed into a sheet during transportation at 80-90° C., citric acid liquid droplets are evenly distributed on the surface of the sheet, and then rolled to form a strip-shaped candy blank at 70-80° C.; Step S12: preparing raw materials for the gel layer (2), adding raw materials for the gel composition into the second sugar boiling pot (4) to prepare a gel composition, and keeping it warm at 45-55°C; Step S13: preparing the raw materials for the core layer (3), adding the raw materials for the core layer (3) into the third sugar boiling pot (5), mixing to obtain the core liquid, and storing at room temperature; Step S2: Sandwiching: stacking the strip-shaped candy blank obtained in step S11 at 70-80° C. to form a columnar candy body, injecting the gel composition obtained in step S12 into the columnar candy body using a sandwich device to form a gel filling area, and injecting the core liquid obtained in step S13 into the gel filling area to form a columnar candy body with a three-layer structure; Step S3: Forming: The columnar sugar body obtained in step S2 is stretched and heated to form a sugar rope, which is then extruded, cut, cooled and packaged to obtain the throat lozenge.

4. A lozenge sandwich device, used for producing the lozenge sandwich of any one of claims 1 to 2 and realizing the lozenge production method of claim 3, characterized in that: The invention comprises a heat preservation roller bed, the heat preservation roller bed comprises a support (6), four heat preservation rollers (7) connected to the support (6) and rotating synchronously, and a material injection mechanism (8), the four heat preservation rollers (7) are arranged in a square on the support (6), an material injection mechanism (8) connected to the support (6) is arranged between the four heat preservation rollers, the material injection mechanism (8) comprises an outer sleeve (11) and an inner core tube (12), the middle part of the outer sleeve (11) is connected to the support (6), one end of the outer sleeve (11) located outside the support (6) is connected to the second sugar-boiling pot (4) through the first injection mechanism, one end of the outer sleeve (11) located inside the support (6) extends along the axial direction of the arrangement of the plurality of heat preservation rollers (7), the discharge end of the inner core tube (12) passes through the outer sleeve (11) and extends into the interior of the outer sleeve (11), and the feed end of the inner core tube (12) is connected to the third sugar-boiling pot (5) through the second injection mechanism.

5. The sandwich device of throat lozenge according to claim 4, characterized in that: The bracket (6) is provided with a sliding block (13) which slides up and down along the bracket (6), and the outer sleeve (11) is connected to the sliding block (13).

6. The sandwich device of throat lozenge according to claim 4, characterized in that: The outer sleeve (11) comprises a first pipe section (14) and a second pipe section (15); the first pipe section (14) is connected to the bracket (6); the second pipe section (15) is rotatably connected to the first pipe section (14); and the inner core tube (12) extends from the first pipe section (14) into the outer sleeve (11).

7. The sandwich device of throat lozenge according to claim 6, characterized in that: One end of the second pipe section (15) connected to the first pipe section (14) is the inlet end, and the other end is the outlet end. The inlet end of the second pipe section (15) has a circular cross-section. The second pipe section (15) is provided with at least three grooves (16) which are gradually concave from the inlet end to the outlet end.

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