Lower mold retaining device and food demolding equipment using same

Abstract

The utility model discloses a lower mold retaining device and food demolding equipment using the same, and belongs to the technical field of food forming processing, the lower mold retaining device comprises a rack, a mold channel is arranged on the rack, and a mold splitting station is arranged on the rack; swing frames capable of swinging up and down around the left-right axis are installed on the positions, located on the front side and the rear side of the mold splitting station, of the rack correspondingly, the free ends of the swing frames are provided with combination parts used for being combined with the lower mold, and the swing frames are in power connection with a driving device. When the swing frame swings upwards to the position close to the mold splitting station, the combination part is combined with a lower mold of the food forming mold at the mold splitting station, and when the swing frame swings downwards to the position away from the mold splitting station, the combination part is separated from the lower mold, and the swing frame is lower than the lower mold. According to the utility model, the food demoulding equipment is improved, so that the problem that the middle part of the lower mould bulges and deforms in the process of separating the upper mould and the lower mould is solved, the upper mould and the lower mould are accurately aligned after demoulding, and the food forming efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food forming and processing, in particular to a lower mold holding device and food demoulding equipment using the device. Background Art

[0002] In the food production process, some products such as chocolate, hawthorn cake, etc. need to be formed by molds. This process usually involves injecting fluid raw materials into the mold, waiting for them to solidify, and then demolding the finished product from the mold.

[0003] In order to facilitate this demoulding process, the Chinese utility model patent with the authorization announcement number CN217523915U discloses a food forming mold. The mold consists of an upper mold and a lower mold, wherein the upper mold is provided with multiple cavities, and the top of the lower mold has a corresponding rubbing pattern. The two cooperate to form a complete shaping space, so that the raw materials can be solidified and formed therein. The characteristic of this mold is that the cavity is a structure that is through-through from top to bottom, and the tight fit between the upper mold and the lower mold is ensured by setting positioning pin holes and adsorption magnets on the upper and lower molds. When in use, the upper mold covers the lower mold, and the cavity is aligned with the rubbing pattern to form a shaping space for injecting raw materials. After the raw materials are injected, they are cooled or solidified, and the upper mold is separated from the lower mold, and the finished product remains in the cavity of the upper mold. Subsequently, the finished product can be ejected from the cavity by inserting a ejection column from the bottom, or by first turning the upper mold over and then inserting the ejection column from top to bottom to achieve demoulding.

[0004] Another Chinese utility model patent with the authorization announcement number CN219844990U proposes an automatic demolding device for food in response to the demand for automatic demolding. The device includes a conveyor line, a receiving tray, a mold separation device, a mold clamping device and a mold turning device, all of which are installed on a frame. During operation, the mold after forming is transported to a specific station, and the mold separation device is started to lift the upper mold to separate it from the lower mold. Then the mold clamping device fixes the upper mold, the mold turning device flips it, and the stripping device pushes the finished product into the receiving tray. The mold turning device continues to move, resets the empty upper mold, and descends to re-combine with the lower mold so that the conveyor line can continue to transport the mold.

[0005] The above-mentioned food forming mold and the automatic demoulding device for food are used together to improve the efficiency and yield of food demoulding, because the demoulding speed is fast and the risk of finished product damage is reduced. However, since the mold is usually made of plastic and has an adsorption magnet built in, coupled with the stickiness of the food itself, the existing automatic demoulding device may encounter some problems in actual operation: when the mold separation device lifts the upper mold, the lower mold is sometimes driven up due to magnetic adsorption or food adhesion, resulting in the mold cannot be properly separated.

[0006] In order to overcome this problem, a limit mechanism is usually added to the automatic demoulding device for food to limit the two ends of the lower mold. This design can prevent the lower mold from being lifted as a whole, but it will also cause the middle of the mold to bulge due to magnetic force or adhesion. In addition, the lower mold has a certain rebound effect, which can cause displacement during use, resulting in misalignment when the upper and lower molds are realigned. This problem urgently needs to be properly solved in the subsequent design and improvement of the automatic demoulding device for food. Utility Model Content

[0007] The utility model aims to solve the problem that when the upper mold and the lower mold of a food mold are separated, the middle part of the lower mold is easily adsorbed or adhered to cause bulging.

[0008] In order to achieve the above-mentioned purpose, the utility model discloses a lower mold holding device, which includes a frame, a mold channel for the food forming mold to move forward and backward along the frame, a mold splitting station, the mold channel passes through the mold splitting station, and a swing frame that can swing up and down around a left and right axis is installed at the positions on the front and back sides of the mold splitting station on the frame, and the free end of the swing frame is provided with a joint for combining with the lower mold, and the swing frame is connected to a swing frame driving device for driving it to swing, when the swing frame swings upward to a position close to the mold splitting station, the joint is combined with the lower mold of the food forming mold at the mold splitting station, and when the swing frame swings downward to a position away from the mold splitting station, the joint is separated from the lower mold and the swing frame is lower than the lower mold. The lower mold holding device can be used in food demoulding equipment, effectively solving the problem of bulging and deformation of the middle part of the lower mold in the process of separating the upper and lower molds, ensuring that the upper mold and the lower mold are accurately aligned after demoulding, and improving the efficiency and quality of food molding.

[0009] Preferably, the coupling portion includes a limit pin provided on the swing frame. When the swing frame swings to a position close to the mold separation station, the limit pin is used to insert into the limit hole on the lower mold, thereby preventing the lower mold from bulging in the middle due to adsorption by the upper mold or adhesion of materials, and the limit pin can also prevent the lower mold from moving left and right.

[0010] Furthermore, the swing frame is provided with two limit pins, which are arranged at intervals on the left and right sides. The two limit pins hold the lower die more firmly.

[0011] Preferably, the combining portion includes a limit plate provided on the swing frame. When the swing frame swings to a position close to the mold splitting station, the limit plate can be inserted into a groove preset on the lower mold, or directly hook the lower mold, thereby preventing the lower mold from bulging in the middle due to adsorption by the upper mold or adhesion of the material.

[0012] Preferably, the joint part comprises a friction plate arranged on the swing frame. When the swing frame swings to a position close to the mold separation station, the friction plate can be close to the side of the lower mold, and the friction force is used to prevent the lower mold from being bulged in the middle due to adsorption by the upper mold or adhesion of materials.

[0013] Furthermore, the swing frame driving device includes a swing frame driving cylinder, the cylinder barrel of the swing frame driving cylinder is fixed on the frame, the piston rod of the swing frame driving cylinder extends upward, the upper end of the cylinder barrel is connected to a rear support, the rear support is located on the side of the piston rod away from the mold separation station, the end of the swing frame away from the joint is hinged to the piston rod through a first hinge shaft, the middle part of the swing frame is hinged to a connecting piece through a second hinge shaft, and the other end of the connecting piece is hinged to the rear support through a third hinge shaft. After adopting this swing frame driving device, the swing frame driving cylinder also serves as a mounting seat for the swing frame, and the structure of the lower mold holding device is relatively compact and simple.

[0014] The utility model also discloses a food demoulding device, comprising a mold separation device arranged on a frame, the mold separation device is used to raise the upper mold of the food forming mold at the mold separation station to separate the upper mold from the lower mold, and the food demoulding device also comprises the above-mentioned lower mold holding device.

[0015] Furthermore, the food demoulding equipment also includes a mold clamping device, a mold turning device, and a demoulding device. A demoulding station is provided on the frame, and the demoulding station is located on one side of the left and right directions of the parting station; the mold clamping device is used to clamp the upper mold; the mold turning device is located between the parting station and the demoulding station, and the mold clamping device is installed on the mold turning device. The mold turning device is used to turn over the upper mold between the parting station and the demoulding station; the demoulding device is used to separate the finished product in the cavity from the upper mold when the upper mold is turned over to the demoulding station. After adopting the above structure, the clamping and turning of the upper mold is realized to facilitate food demoulding.

[0016] Furthermore, the frame is provided with limit plates at the left and right sides of the mold splitting station, and the limit plates are located in the gap between the upper mold and the lower mold. With the above structure, the limit plates can limit the left and right ends of the lower mold without affecting the forward and backward movement of the food forming mold.

[0017] Furthermore, a lower mold positioning block that can move left and right is installed on each of the positions on the left and right sides of the mold splitting station on the frame. The lower mold positioning block is connected to a lower mold positioning block driving device for driving it to move left and right. When the lower mold positioning block moves to the mold splitting station, it can be inserted into the positioning notch of the lower mold to position the food forming mold. After adopting the above structure, the two lower mold positioning blocks can cooperate with the positioning notch preset on the lower mold to achieve accurate positioning of the food forming mold, so as to facilitate mold clamping and mold turning.

[0018] Furthermore, a food forming mold conveying device is provided on the frame 1, and the food forming mold conveying device is used to move the food forming mold forward and backward along the mold channel. After adopting the above structure, the automatic conveying of the food forming mold is realized, and the automatic demoulding is combined to further improve the automation of food processing.

[0019] To sum up, the beneficial effect of the utility model is that by improving the food demoulding equipment, especially by arranging a lower mold holding device on the food demoulding equipment, the problem of bulging and deformation of the middle part of the lower mold occurring during the separation of the upper and lower molds is effectively solved, ensuring the accurate alignment of the upper and lower molds after demoulding, and improving the efficiency and quality of food molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the food demoulding equipment in the utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure from a top-down perspective;

[0022] Figure 3 yes Figure 1 A schematic diagram of some structures in the food demoulding equipment shown;

[0023] Figure 4 yes Figure 3 Schematic diagram of the structure after cutting along the MM direction;

[0024] Figure 5 It is a schematic diagram of the structure after being cut along the FF direction in 4;

[0025] Figure 6 yes Figure 3 Schematic diagram of the structure after removing the food forming mold;

[0026] Figure 7 A structural schematic diagram of an embodiment of the lower mold holding device of the utility model;

[0027] Figure 8 yes Figure 7 The enlarged view of the H part in FIG.

[0028] Fig. 9 yes Figure 7 The schematic diagram of the structure after cutting along the NN line;

[0029] Fig.10 yes Fig. 9 The enlarged view of the G section in the figure;

[0030] Fig.11 yes Figure 7 A structural schematic diagram of another working state of the lower mold holding device shown;

[0031] Fig.12 It is a schematic diagram of a swing frame and a driving device in a second embodiment of the lower mold holding device of the utility model;

[0032] Fig.13 It is a schematic diagram of a swing frame and a driving device in a third embodiment of the lower mold holding device of the utility model;

[0033] Fig.14 It is a structural schematic diagram of a food forming mold.

[0034] In the figure: 1, frame, 2, food forming mold, 201, upper mold, 202, lower mold, 3, mold channel, 4, mold separation station, 5, swing frame, 9, limit pin, 10, limit plate, 12, friction plate, 13, swing frame driving cylinder, 1301, cylinder, 1302, piston rod, 16, rear support, 17, first hinge axis, 18, second hinge axis, 19, connecting piece, 20, third hinge axis, 21, mold separation device, 22, lifting bracket, 23, top Needle, 24, supporting arm, 25, upper mold bracket, 26, ejector plate, 27, ejector plate driving device, 28, mold clamping device, 29, mold turning device, 30, demoulding device, 31, demoulding station, 32, flip seat plate, 33, rotating shaft, 34, mold clamping arm, 35, mold clamping arm driving device, 36, suspension, 37, suspension driving device, 38, demoulding plate, 39, demoulding plate driving device, 40, demoulding top block, 41, limit clamping plate, 43, lower mold positioning block. DETAILED DESCRIPTION

[0035] The existing automatic demoulding device for food (i.e., food demoulding equipment) includes a frame on which a conveyor line, a receiving tray, a parting device, a mold clamping device, and a mold turning device are installed. When working, the food forming mold is conveyed to a specific workstation, the parting device is started to lift the upper mold to achieve separation from the lower mold, and then the mold clamping device clamps the upper mold, the mold turning device flips it, the stripping device pushes the finished product into the receiving tray, and the mold turning device works to reset the vacated upper mold. The upper mold descends and then recombines with the lower mold, and the conveyor line continues to transport the mold backwards. The problem with the existing automatic demoulding device for food is that when the upper mold is separated from the lower mold, the middle part of the lower mold is easily adsorbed or adhered, resulting in bulges, such as Fig.14 The situation shown is that the upper mold 201 rises in the direction indicated by arrow A, the two ends of the lower mold 202 are restricted downward in the direction indicated by arrow B, and the middle part of the lower mold 202 bends upward in the direction indicated by arrow C to cause a bulge.

[0036] In order to solve the above problems, the utility model improves the existing automatic food demoulding device, thereby providing a food demoulding device, the main improvement of which is that a lower mold holding device is arranged on the food demoulding device.

[0037] The specific implementation of the utility model is further described in detail below in conjunction with the drawings and embodiments.

[0038] Figures 1 to 6 An embodiment of a food demoulding device is shown.

[0039] Reference Figures 1 to 6 In one embodiment of the present invention, the food demoulding device comprises a frame 1, which can be an integral structure or a split structure. Figure 2 As shown, the frame 1 is provided with a mold channel 3 for the food forming mold 2 to move forward and backward along it and a material tray channel for the material tray to move forward and backward. Figure 2 ) and mold channel 3 ( Figure 2 The frame 1 is provided with a mold splitting station 4 and a demoulding station 31. The mold channel 3 passes through the mold splitting station 4. The demoulding station 31 is close to the mold splitting station 4 and is located above the material tray channel.

[0040] A food forming mold conveying device may be provided on the frame 1 , and the food forming mold conveying device is used to move the food forming mold 2 forward and backward along the mold channel 3 .

[0041] A material tray conveying device may be provided on the frame 1 , and the material tray conveying device is used to move the material tray forward and backward along the mold channel 3 .

[0042] The food forming mold conveying device and the material tray conveying device can adopt the material tray conveying device disclosed in the patent document with the authorization announcement number CN214526641U, and four L-shaped guide rails extending forward and backward can be set on the frame 1. Two of the L-shaped guide rails are opposite to each other on the left and right, and the grooves on the two L-shaped guide rails are used to support the left and right sides of the food forming mold 2, thereby forming a mold channel 3. The other two L-shaped guide rails are also opposite to each other on the left and right, and the grooves on the two L-shaped guide rails are used to support the left and right sides of the material tray, thereby forming a material tray channel. In addition to the above embodiments, the food forming mold conveying device and the material tray conveying device can also adopt other structures such as conveyor belts, conveyor rollers, etc., and the formation of the mold channel 3 and the material tray channel is not limited to the above forms.

[0043] The food demoulding device also includes a demoulding device 21 (see Figure 4 , Figure 5 )、Mold clamping device 28 (see Figure 3 , Figure 6 )、Mold turning device 29 (see Figure 3 , Figure 6 )、Demolding device 30 (see Figure 1). The mold splitting device 21 is used to raise the upper mold 201 of the food forming mold 2 at the mold splitting station 4 so as to separate the upper mold 201 from the lower mold 202. The mold clamping device 28 is used to clamp the upper mold 201. The mold flipping device 29 is located between the mold splitting station 4 and the demolding station 31. The mold clamping device 28 is installed on the mold flipping device 29. The mold flipping device 29 is used to flip the upper mold 201 between the mold splitting station 4 and the demolding station 31. The demolding device 30 is used to separate the finished product in the cavity from the upper mold 201 when the upper mold 201 is flipped to the demolding station 31.

[0044] The working method of the above-mentioned food demoulding equipment is as follows: the food forming mold conveying device moves the food forming mold forward and backward along the mold channel 3, the material tray conveying device moves the material tray forward and backward along the material tray channel, the food forming mold enters the demoulding station 4, the material tray enters below the demoulding station 31, the demoulding device 21 makes the upper mold 201 of the food forming mold 2 at the demoulding station 4 rise so that the upper mold 201 is separated from the lower mold 202, the clamping device 28 clamps the upper mold 201, and the flipping device 29 flips the upper mold 201 from the demoulding station 4 to At the demolding station 31, the demolding device 30 separates the finished product in the cavity from the upper mold 201, and the separated finished product falls onto the material tray, and is continuously conveyed along the material tray channel by the material tray conveying device. The mold turning device 29 turns the empty upper mold 201 from the demolding station 31 to the mold separation station 4, and the mold clamping device 28 releases the upper mold 201. After the upper mold 201 falls, it is recombined with the lower mold 202 to become an empty food forming mold 2. The food forming mold conveying device continues to convey the empty food forming mold 2 along the mold channel 3.

[0045] In order to achieve accurate positioning of the food forming mold 2, refer to Figure 3 , Figure 6 A lower mold positioning block 43 that can move left and right is installed on the frame 1 at the left and right sides of the mold separation station 4. The lower mold positioning block 43 is powered by a lower mold positioning block driving device for driving it to move left and right. The lower mold positioning block driving device shown in the figure is a cylinder installed on the frame 1. The piston rod of the cylinder is connected to the lower mold positioning block 43. When the lower mold positioning block 43 moves to the mold separation station 4, it can be inserted into the positioning notch of the lower mold 202 to position the food forming mold 2.

[0046] Reference Figure 3 , Figure 6 In order to limit the left and right ends of the lower mold 202 during mold separation, limit clamping plates 41 are provided on the left and right sides of the mold separation station 4 on the frame 1, and the limit clamping plates 41 are located in the gap between the upper mold 201 and the lower mold 202.

[0047] Reference Figures 3 to 6The mold separation device 21 in this embodiment includes a lifting bracket 22 installed on the frame 1 and located below the mold separation station 4. The lifting bracket 22 is connected to a lifting bracket driving device (not shown in the figure) for driving it to rise and fall. The lifting bracket driving device can adopt a cylinder, a cylinder, an electric push rod or other structures that can output lifting power installed on the frame. The left and right ends of the lifting bracket 22 are respectively connected to a support arm 24 extending upward, and an upper mold bracket 25 is connected to the support arm 24. The upper mold bracket 25 is located in the gap between the upper mold 201 and the lower mold 202. When the lifting bracket 22 rises, the upper mold bracket 25 is used to lift the end of the upper mold 201 to rise; a liftable ejector plate 26 is installed on the lifting bracket 22, and a plurality of ejectors 23 extending upward are provided on the ejector plate 26. The ejector plate 26 is connected to an ejector plate driving device 27 for driving the ejector plate 26 to rise and fall. The ejector plate driving device 27 in this embodiment is a cylinder installed on the lifting bracket 22. Of course, other mechanisms can also be used. When the lifting bracket 22 is lowered and the ejector support plate 26 is raised, the ejector 23 passes through the through hole on the lower mold 202 and abuts against the bottom surface of the upper mold 201. When the lifting bracket 22 is lowered and the ejector support plate 26 is lowered, the ejector 23 is separated from the bottom surface of the lower mold 202. In addition to the illustrated embodiment, the mold separation device 21 can also adopt other structures, such as a mold separation device 21 in a food automatic demoulding device disclosed in the Chinese utility model patent document with the authorization announcement number CN219844990U.

[0048] Reference Figure 3 In this embodiment, the mold turning device 29 includes a flip seat plate 32 mounted on the frame 1 and capable of flipping left and right. The flip seat plate 32 is rotatably mounted on the frame 1 via a rotating shaft 33. The flip seat plate 32 is located between the mold separation station 4 and the demolding station 31. The flip seat plate is connected to a flip seat plate driving device for driving the flip seat plate to flip left and right. In one embodiment, the flip seat plate driving device is a motor mounted on the frame, and the power output shaft of the motor is connected to the rotating shaft 33. Of course, it is not limited to the above-mentioned structural form.

[0049] Reference Figure 6In this embodiment, the mold clamping device 28 includes two mold clamping arms 34 mounted on the mold turning device 29 and capable of moving forward and backward. The two mold clamping arms 34 are arranged opposite to each other in front and back. The mold clamping arms 34 are connected to the mold clamping arm driving device 35 by power. The mold clamping arm driving device 35 is used to drive the mold clamping arms 34 to move forward and backward. The mold clamping arm driving device 35 in this embodiment is a cylinder mounted on the turning seat plate 32. The cylinder can be a cylinder with dual power output, and one cylinder drives the two mold clamping arms 34; or it can be two cylinders with single power output, and two cylinders drive the two mold clamping arms 34 respectively. In addition to the illustrated embodiment, the mold clamping device 28 can also adopt other structures, such as a structure composed of a left clamping frame and a right clamping frame in an automatic bread demoulding and pouring device disclosed in the patent document with the authorization announcement number CN216452943U.

[0050] Reference Figure 1 In this embodiment, the demoulding device 30 includes a suspension 36, which is mounted on the frame 1 so as to be movable forward and backward. The suspension 36 is connected to a suspension driving device 37 for driving the suspension 36 to move forward and backward. The suspension driving device 37 includes a reduction motor mounted on the suspension 36 and a gear driven by the reduction motor. A rack extending forward and backward is mounted on the frame, and the gear meshes with the rack. A liftable demoulding plate 38 is mounted on the suspension 36, and the demoulding plate 38 is connected to a demoulding plate driving device 39 for driving the demoulding plate 38 to move upward and downward. The demoulding plate driving device 39 can be an electric cylinder mounted on the suspension 36, and the telescopic rod of the electric cylinder is connected to the demoulding plate 38. The bottom surface of the demoulding plate 38 is provided with a plurality of demoulding top blocks 40. In addition to this embodiment, the demoulding device 30 can also adopt other structures, such as the suspension 36 is fixedly mounted on the frame 1, and the lifting stroke of the demoulding plate 38 is increased, so that the demoulding plate 38 does not hinder the flipping of the upper mold 201 when it is lifted.

[0051] In order to solve the problem that the middle part of the lower mold 202 is easily adsorbed or adhered to cause bulging when the upper mold 201 is separated from the lower mold 202, the food demoulding equipment in the utility model includes a lower mold holding device.

[0052] Figures 7 to 13 An embodiment of a lower mold holding device is shown.

[0053] Reference Figures 7 to 10The lower mold holding device in the utility model comprises a frame 1, on which a mold channel 3 is provided for the food forming mold 2 to move forward and backward along the frame 1, a mold splitting station 4 is provided on the frame 1, and the mold channel 3 passes through the mold splitting station 4. A swing frame 5 which can swing up and down around a left and right axis is respectively installed at the positions on the front and rear sides of the mold splitting station 4 on the frame 1, and the free end of the swing frame 5 is provided with a coupling part for coupling with the lower mold 202, and the coupling part can be a component connected to the swing frame 5, or it can be a part of the swing frame 5 itself, and the swing frame 5 is powered and connected to a swing frame driving device for driving it to swing, and when the swing frame 5 swings upward to a position close to the mold splitting station 4, the coupling part is coupled with the lower mold 202 of the food forming mold 2 at the mold splitting station 4 to keep the middle part of the lower mold 202 from moving upward, and when the swing frame 5 swings downward to a position away from the mold splitting station 4, the coupling part is separated from the lower mold 202 and the swing frame 5 is lower than the lower mold 202 to avoid hindering the lower mold 202 from moving forward and backward (see Fig.11 ).

[0054] Reference Figure 8 , Fig.10 The coupling portion in this embodiment includes one or more limit pins 9 arranged on the swing frame 5. When the swing frame 5 swings to a position close to the mold splitting station 4, the limit pins 9 are used to be inserted into the limit holes on the lower mold 202.

[0055] In addition to the embodiment of the lower mold holding device shown in the figure, the coupling portion can also adopt other structural forms. For example, in another embodiment of the lower mold holding device, refer to Fig.12 The coupling portion includes a limit plate 10 disposed on the swing frame 5. When the swing frame 5 swings to a position close to the mold separation station 4, the limit plate 10 is used to hold the upper edge of the lower mold (202) or insert into the limit groove on the lower mold 202. In another embodiment of the lower mold holding device, refer to Fig.13 The joint includes a friction plate 12 arranged on the swing frame 5. The friction plate 12 can also be provided with a convex or concave-convex pattern to increase its friction force. When the swing frame 5 swings to a position close to the mold splitting station 4, the friction plate 12 is close to the side of the lower mold 202.

[0056] The working mode of the above-mentioned lower mold holding device is as follows: the food forming mold 2 can move forward and backward along the mold channel 3, and before the food forming mold 2 enters the mold separation station 4, the swing frame 5 is in a working position after swinging downward, thereby avoiding the swing frame 5 from blocking the food forming mold 2. After the food forming mold 2 enters the mold separation station 4, the swing frame driving device drives the swing frame 5 to swing upward, and the swing frame 5 is in a working position after swinging upward, and the joint on the swing frame 5 is combined with the lower mold 202 to prevent the lower mold 202 from being adsorbed by the upper mold 201 or the adhesion of the material when the upper mold 201 of the food forming mold 2 is separated, resulting in the problem of bulging in the middle. After the food is demoulded, the upper mold 201 that is vacated is recombined with the lower mold 202, and the upper mold 201 and the lower mold 202 can be accurately aligned, and then the swing frame driving device drives the swing frame 5 to swing downward, and the swing frame 5 is in a working position after swinging downward, thereby avoiding the swing frame 5 from blocking the forward and backward movement of the food forming mold 2, and the food forming mold 2 can move forward and backward along the mold channel 3 to proceed to the next step.

[0057] In the illustrated embodiment, the swing frame driving device includes a swing frame driving cylinder 13, a cylinder barrel 1301 of the swing frame driving cylinder 13 is fixed on the frame 1, a piston rod 1302 of the swing frame driving cylinder 13 extends upward, and the upper end of the cylinder barrel 1301 is connected to a rear support 16, and the rear support 16 is located on the side of the piston rod 1302 away from the mold separation station 4, and one end of the swing frame 5 away from the joint is hinged to the piston rod 1302 through a first hinge shaft 17, and the middle part of the swing frame 5 is hinged with a connecting member 19 through a second hinge shaft 18, and the other end of the connecting member 19 is hinged to the rear support 16 through a third hinge shaft 20.

[0058] The working mode of the swing frame driving device is as follows: when the piston rod 1302 of the swing frame driving cylinder 13 moves upward, the piston rod 1302 has an upward pressing effect on the end of the swing frame 5 away from the joint part, thereby enabling the end of the swing frame 5 with the joint part to swing downward, and the swing frame 5 is lower than the lower mold 202, so as to prevent the front and rear movement of the food forming mold 2 from being hindered. When the piston rod 1302 of the swing frame driving cylinder 13 moves downward, the piston rod 1302 has a downward pulling effect on the end of the swing frame 5 away from the joint part, thereby enabling the end of the swing frame 5 with the joint part to swing upward, and the joint part provided on the swing frame 5 can be combined with the lower mold (202) to keep the middle part of the lower mold 202 from moving upward.

[0059] In addition to the structure in the illustrated embodiment, the swing frame driving device may also adopt other structures, for example: the swing frame driving device includes a motor mounted on the frame 1, a driving gear is mounted on the power output shaft of the motor, the swing frame 5 is swingably connected to the frame via a rotating shaft, the swing frame 5 is fixedly connected to the rotating shaft, a driven gear is mounted on the rotating shaft, the driving gear is meshed with the driven gear, and the swing frame 5 is driven to swing by the power output of the motor.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A lower mold holding device, comprising a frame (1), the frame (1) being provided with a mold channel (3) for a food forming mold (2) to move forward and backward along the frame (1), a mold splitting station (4) being provided on the frame (1), the mold channel (3) passing through the mold splitting station (4), characterized in that The frame (1) is provided with a swing frame (5) at the positions on both sides of the front and rear of the mold separation station (4), and the swing frame (5) can swing up and down around a left and right axis. The free end of the swing frame (5) is provided with a joint part for engaging with the lower mold (202). The swing frame (5) is connected to a swing frame driving device for driving the swing frame to swing. When the swing frame (5) swings upward to a position close to the mold separation station (4), the joint part is engaged with the lower mold (202) of the food forming mold (2) at the mold separation station (4). When the swing frame (5) swings downward to a position away from the mold separation station (4), the joint part is separated from the lower mold (202) and the swing frame (5) is lower than the lower mold (202).

2. The lower mold holding device according to claim 1, characterized in that: The coupling portion comprises a limiting pin (9) provided on the swing frame (5).

3. The lower mold holding device according to claim 2, characterized in that: The swing frame (5) is provided with two limit pins (9), and the two limit pins (9) are arranged at intervals on the left and right.

4. The lower mold holding device according to claim 1, characterized in that: The combination portion comprises a limit plate (10) provided on the swing frame (5); or the combination portion comprises a friction plate (12) provided on the swing frame (5).

5. The lower mold holding device according to claim 1, characterized in that: The swing frame driving device comprises a swing frame driving cylinder (13), a cylinder barrel (1301) of the swing frame driving cylinder (13) being fixed on the frame (1), a piston rod (1302) of the swing frame driving cylinder (13) extending upward, an upper end of the cylinder barrel (1301) being connected to a rear support (16), the rear support (16) being located on a side of the piston rod (1302) away from the mold separation station (4), an end of the swing frame (5) away from the joint being hinged to the piston rod (1302) via a first hinge shaft (17), a connecting piece (19) being hinged to the middle portion of the swing frame (5) via a second hinge shaft (18), the other end of the connecting piece (19) being hinged to the rear support (16) via a third hinge shaft (20).

6. A food demoulding device, comprising a demoulding device (21) arranged on a frame (1), the demoulding device (21) being used to raise an upper mold (201) of a food forming mold (2) at a demoulding station (4) so ​​as to separate the upper mold (201) from a lower mold (202), characterized in that: The food demoulding equipment further comprises a lower mold holding device as claimed in any one of claims 1 to 5.

7. The food demoulding device according to claim 6, characterized in that: The food demoulding equipment further comprises a mold clamping device (28), a mold turning device (29), and a demoulding device (30). A demoulding station (31) is provided on the frame (1), and the demoulding station (31) is located on one side of the mold separation station (4) in the left and right directions. The mold clamping device (28) is used to clamp the upper mold (201). The mold turning device (29) is located between the mold separation station (4) and the demoulding station (31). The mold clamping device (28) is installed on the mold turning device (29). The mold turning device (29) is used to turn over the upper mold (201) between the mold separation station (4) and the demoulding station (31). The demoulding device (30) is used to separate the finished product in the mold cavity from the upper mold (201) when the upper mold (201) turns over to the demoulding station (31).

8. The food demoulding device according to claim 6, characterized in that: Positions on the frame (1) located on the left and right sides of the mold splitting station (4) are provided with limit clamping plates (41), and the limit clamping plates (41) are located in the gap between the upper mold (201) and the lower mold (202).

9. The food demoulding device according to claim 6, characterized in that: A lower mold positioning block (43) that can move leftward and rightward is installed on the frame (1) at positions on the left and right sides of the mold splitting station (4). The lower mold positioning block (43) is connected to a lower mold positioning block driving device for driving the lower mold positioning block to move leftward and rightward. When the lower mold positioning block (43) moves toward the mold splitting station (4), it can be inserted into the positioning notch of the lower mold (202) to position the food forming mold (2).

10. The food demoulding device according to claim 6, characterized in that: The frame (1) is provided with a food forming mould conveying device, which is used to move the food forming mould (2) forward and backward along the mould channel (3).

Images